Transcript
BROADCAST AUDIO EQUIPMENT
Type BC-6A Dual Channel Consolette
RADIO CORPORATIOn OF AMERICA ErIGIIIEERMG PRODUCTS Division
CAMDER II. J.
1B-24788
EQUIPMENT LOST OR DAMAGED IN TRANSIT When delivering the equipment to you, the truck driver or carrier's agent will present a receipt for your signature. Do not sign it until you have (a) inspected the containers for visible signs of damage and (b) counted the containers and compared with the amount shown on the shipping papers. If a shortage or if evidence of damage is noted, insist that notation to that effect be made on the shipping papers before you sign them.
Further, after receiving the equipment, unpack it and inspect thoroughly for concealed damage. This should be done within 15 days, if possible. If concealed damage is discovered immediately notify the carrier, confirmed in writing and insist upon an inspection and report. In addition to the above, the shortages or damages should also be reported to RCA, but do not return any damaged equipment unless we have furnished complete return shipping instructions.
Transportation companies are required to adjust for damage resulting from their negligence and RCA will assist you, if necessary, in obtaining settlement. Accordingly, you should save all shipping papers, letters or invoices concerning the shipment until it is certain that the equipment was delivered in good condition or until any damage has been adjusted.
REPLACEMENT PARTS When ordering replacement parts, please give symbol, description, and stock number of each item ordered. The part which will be supplied against an order for a replacement item may not be an exact duplicate of the original part.
However, it will be a satisfactory replacement differing only in minor mechanical or electrical characteristics. Such differences will in no way impair the operation of the equipment. The following tabulations list service parts and electron tube ordering instructions according to your geographical location.
SERVICE PARTS ORDER SERVICE PARTS FROM:
LOCATION
Continental United States, Alaska and Hawaii
Service Parts Order Service, Bldg. 60, 19th & Federal Sts., Camden 5, New Jersey or through your nearest RCA Regional Office. Emergency orders may be telephoned, telegraphed, or teletyped to RCA Emergency Service, Bldg. 60, Camden, N. J. (Telephone: WO 3.8000).
Dominion of Canada
RCA Victor Company Limited, 1001 Lenoir Street, Montreal, Quebec or through your local Sales Representative or his office.
Outside of Continental United States, Alaska, Hawaii and the Dominion of Canada
local Sales Representative.
RCA International Division, Clark, N.J., U.S.A. or through your
ELECTRON TUBES LOCATION
ORDER ELECTRON TUBES FROM:
Continental United States, Alaska and Hawaii
Local Tube Distributor
Dominion of Canada
RCA Victor Company Limited, 1001 Lenoir Street, Montreal, Quebec or through your local Sales Representative or his office.
Outside of Continental United States, Alaska, Hawaii and the Dominion of Canada
Local Tube Distributor or from: Tube Department RCA International Division 30 Rockefeller Plaza
New York 20, New York, U.S.A. If for any reason, it is desired to return tubes, please return them to the place of purchase.
PLEASE DO NOT RETURN TUBES DIRECTLY TO RCA WITHOUT AUTHORIZATION AND SHIPPING INSTRUCTIONS.
It is important that complete information regarding each tube (including type, serial number, hours of service and reason for its return) be given. When tubes are returned, they should be shipped to the address specified on the Return Authorization form. A copy of the Return Authorization and also a Service Report for each tube should be packed with the tubes.
LIST OF RCA REGIONAL OFFICES Atlanta 3, Georgia
Boston 16, Mass. Chicago 54, Ill. Room 2301, John Hancock Bldg. 1186 Merchandise Mart Plaza 200 Berkley St. Delaware 7-0700 Hubbard 2-1700 Dallas 1, Texas Hollywood 28, Calif. Kansas City 6, Missouri 1907-11 McKinney Ave. RCA Bldg., 1560 N. Vine St. 340 Dierks Bldg. Riverside 1371 Hollywood 9-2154 Harrison 6480 Branch-San Francisco 2, Calif. 420 Taylor St. Ordway 3-3027
522 Forsyth Bldg. Lamar 7703
Cleveland 15, Ohio 1600 Keith Bldg. Cherry 1.3450
New York 20, New York 36 W. 49th St. Judson 6-3800
BROADCAST AUDIO EQUIPMENT
INSTRUCTIONS
Type BC -6A
Dual Channel Consolette MI -I 1638
RADIO CORPORATION OF AMERICA ENGINEERING PRODUCTS DIVISION, PRINTED IN U.S.A. 5106 - 537
CAMDEN,
N.
J.
Figure 1-Type BC -6A Consolette M1-11638
1
TECHNICAL DATA Power Required
Frequency Response Program: = 1.5 db 30 to 15,000 cps Monitor: =2.5 db 30 to 15,000 cps
100-130 volts, 50/60 cycles 300 watts
Distortion
Amplifiers
Program Line: Less than 0.5% (100-15,000 cps at 18 dbm output) Monitor: Less than 1.5% (50-15,000 cps at 6w)
9 RCA Preamplifiers 5AR1 thru 5AR9 3 RCA Preamplifiers 5AR10 thru 5A1212 2 RCA Program Amplifiers 5AR13, 5AR14 2 RCA Monitor Amplifiers SARIS, 5AR16 2 RCA Power Supplies 5PS1, 5PS2
Signal to Noise Ratio
Inputs 10 Microphones
Microphone to Program Line
(68 db gain, 18 dbm output) 68 db
30/150 ohms
2 Tape, Turntable or Film 5 Remote Lines 1 Network 3 Cue Lines
Tube Complement (MI -11484 Kit Required, not supplied)
150 ohms 600 ohms 600 ohms 20,000 ohms
2 5R4GY 4 14AU7 2
4 12AX7 4 6V6GT 10 MI -11299 (RCA selected 12AY7) 12 12AY7
Output Lines 2 Program Lines 2 External Monitors 5 Speakers
5 Remote Lines (Cue)
600 ohms 18 dbm 600 ohms 12 dbm 15 ohms 6 watts (total) 600 ohms 18 dbm
Dimensions and Weight Width - 38 inches Height -111/2 inches
VU Meter Two 4 -inch illuminated VU Meters with Type B scale
Depth - 211/2 inches
Weight- 127 pounds Channels CH 1 Two independent program output channels CH 2 or single output channel with split mixing
Finish Two-tone umber gray
DESCRIPTION The Type BC -6A Dual Channel Audio Consolette is designed to provide audio amplification, switching
control and monitoring facilities essential to large radio and TV stations. The equipment is completely self contained. The use of etched wiring circuits for all amplifiers has allowed space for the two power supplies and additional features. The BC -6A incorporates nine mixer positions and provides all the facilities needed to accommodate one or two studios,
an announce booth microphone, a control room microphone, two transcription turntables, tape, film, five remote lines, network, and three cue circuits. -
Colored knobs on switches and controls are matched to indicate related functions. A metal bracket is mounted in the center between the VU meters to support the program script. A selector switch indicates single channel or dual channel operation: one Master gain control is used for simultaneous con-
trol of both channels and two Sub -Master controls
for individual control of each output channel. A total of twenty-two inputs are available. Two VU meters, one for each channel, are mounted on the control panel. The styling of the BC -6A matches the other RCA audio consolettes, BC -2B, BC -3B and BC -5A, as well as
the Auxiliary Mixer BCM-1A and Switching
Consolette BCS-11A. The styling is also suitable for alignment with TV Terminal equipment. The consolette should be mounted on a fiat topped desk or surface of adequate dimensions. Electrical connections are made to power and audio terminal blocks at the
back of the consolette. Knockout holes of 1-1/16 inch diameter are provided in the rear panel and on the rear bottom of the consolette housing for the terminating conduits. The front panel is hinged at the bottom to the consolette housing and may be
2
Circuit Description
tilted forward for servicing the inside. Two supports
hold the panel in position when open so as not to
The BC -6A Consolette amplifiers are constructed
allow the weight of the panel to rest on the controls. The louvred top cover may be easily removed. The tubes are supplied separately as tube kit MI -11484 and are listed in the Technical Data.
on individual etched circuit boards. External connections are made through turret type terminals on each board. The boards are secured with standard hardware to a metal chassis and are easily loosened or removed to gain access to the etched wiring.
Associated Equipment The necessary auxiliary units such as microphones, loudspeakers, turntables, tape recorders and warning
Preamplifiers 5AR1 -5AR7 Twelve preamplifiers are used in the consolette, two units, however, are used as line amplifiers and three units as booster amplifiers. The preamplifier is a two -staged RC coupled amplifier using a selected 12AY7 (MI -11299) twin
lights, may be selected from the RCA catalogs. A separate sheet of instructions is packed with each unit.
In regard to loudspeakers, however, a few points should be emphasized. A maximum of five speakers may be connected to each BC -6A consolette. The loudspeaker should have a voice coil impedance of
triode. The input signal for the microphone preamplifier is derived from an unloaded input transformer which is mounted under the preamplifier
15 ohms, or an impedance matching transformer
mounting shelf. Negative feedback is applied from the plate of the second stage to the cathode of the input stage. The output of the second stage is fed to
MI -11731 must be provided. As to warning lights, the MI -11706 series are recom-
mended for the studios, control room and announce booth. The lights which are available with inscrip-
tion, are listed as follows: ON AIR REHEARSAL
AUDITION STAND-BY SILENCE
the potentiometer type gain control (mixer, sub master or monitor gain control). The output signal from the gain control is applied to the grid of the third stage and then to a cathode follower output
MI -11706-1 MI -11706-2 MI -11706-3 MI -11706-4 MI -11706-5
stage. A 12AY7 tube is used for the third and fourth
stages. To reduce the static charge. on the output coupling capacitor 105, which could cause switching clicks, the cathode resistance 1R10 is returned to a negative supply and grid bias is obtained through a voltage divider 1R12 and 1R13 such that the cathode
An MI -11702-A Warning Light Relay is required for each warning light.
air 2Stir*. 0
IC 2 0/
GAIN
12AY7
/2/1Y7 IV/A
INPUT
I V2&
IV 2,4
/C/
/C3
.047
.047
3
IC4
km
Nn
Boa
N
q,9
ot
co
a
`.9
CC
OUTPUT
5
/.0
03
CC 4g
Fr
285s/.
010
0
owe
c
IC
.0- 4- 7
3
-0 -oh -n7
-190y. o
4a
o 7e 275 V 06
/R
W/601<-5,
9
4
5
0I
a 3V
476069 -0 Figure 2-Schematic Diagram for Preamplifier f5AR1 -5AIM
09
3
I Ri
GROUND STRAP 1311
GROUND STRAP R4
C3
GROUND STRAP
GROUND STRAP
I C5
I XV2
II
X10
9
8
7
16
Figure 3 Preamplifier 15A111 Printed Circuit Board of the output stage potential.
is
approximately at ground
Preamplifiers SARS. 5AR9 as Line Amplifiers The full gain of the amplifier is not required for the network and remote line preamplifiers 5AR8 and 5AR9, therefore, the input tube 1V1 is omitted and
input connection is made to the grid of the third stage. However, all the components are available for
special applications requiring more gain. The full gain of the preamplifiers 5AR8 and 5AR9 may be restored by the following changes: 1.
Remove resistors 5R9 and 5R10 which are con-
nected between terminals 7 and 9 of 5T8 and 5T9 respectively. 2.
1
of 5AR8.
3. Connect terminal 9 of 5T8 to terminal 3 of 5AR8.
4. Remove wire #598 from terminal 9 of 5T9 and connect it to terminal 1 of 5AR9.
5. Connect terminal 9 of 5T9 to terminal 3 of 5AR9.
6.
Insert MI -11299 selected 12AY7 tubes in the socket nearest the front of the preamplifiers 5AR8 and 5AR9.
Preamplifiers 5AR1O, 5AR11 and 5AR12 as Booster Amplifiers When the preamplifiers are used as booster amplifiers, they vary from the preamplifiers SARI through
5AR9 as shown in figures 2 and 3. The cathode resistors 1R14 and IRIS are connected to ground. Self bias is obtained through the voltage drop across 1R15. Since no switching is performed following the
amplifier, the buildup of a charge on the output coupling capacitor 105 is permissible. The CH 1 Booster Amplifier 5AR11 and CH 2 Booster Amplifier
Remove wire #597 from terminal 9 of 5T8 and connect it to terminal
Figure 4-Preamplifier (5ARIO, 5AR11, 5AR121 Printed Circuit Board
5ARIO are controlled by CH 1 SUB -MASTER and CH 2 SUB -MASTER controls respectively. The PGM-.
TB-MON Booster Amplifier 5AR12 is controlled by the PGM MON Gain Control 5AT12. The preamplifiers, less input transformers, have a
voltagt gain of 46 db. An input signal of -50 dbm to the input transformer will produce an output voltage of approximately 1 volt.
4
2
OUT 0 GAIN CONTR. 1C21( 0.1 IN
1/212AY7
y2 12AY7
212AY7
/212AY7
1V2A
IVI 8 6
IVI A
1V2B
6
1
204
ICI it
7
1R9 1MEG
1R6 39K 8200
105 1.0
.047
.047
IR1
7 -
1R2
1R3
1R4
100K
I MEG
560
OUTPUT
5
1R15
1200
08 IC3 .042
1W-570
1R7
1R141
1138,
1R11
56K
200/1K
5600 1W - 570
100K
5,0/
07C
C 4 0
275V
06 1
265v
160K -5".
010
9
63V
011
09
476967
Figure 5-Schematic Diagram for Preamplifiers 5ARIO, SARI! and 5AR12 OUT
06
124X7 2C/
.047
.047
2RI /00K
2Y 18
2V 1 A
G
8
2R7
7
2R9
120K
2 R5
2 R4 6.80K
1800
G
2 V3 I2AU 7
2R8 470K
1
NPOT 3
I2AU7 7
7
2R2
2V2
2C3
2700
2R3 /.50K
0
470K
2C4 .047
2Ra
57
OUT
/20 K 5%
03
2R/i
/0K 2C2 35
menF.
2C5
r 20
2C6
.047 r"
285V
2R10
390
C
07
2R/2
/8 I< -5%
753060-0
Figure 6-Schematic Diagram for Program Amplifiers 5AR13, 5AR14
FB
08
2
5
LINE AMP, 5AR14. The etched wiring board con tains all the electrical components except the output transformers 5T10 and 5T11 which are mounted on
2RI
2C1
2XV1 2C2
the chassis directly in the front of each program
2R5
amplifier 5AR14 and 5AR13 respectively. A 12AX7 twin triode is used for the input and phase inverter stages, driving two 12AU7 twin triodes which are connected in push-pull parallel. Negative feedback
2R4
is
2R9
transformer. An input voltage of approximately 1.35
2R6
derived from a tertiary winding on the output
volts is required to obtain an output of 30 dbm. Monitor Amplifiers SARIS - SARI6 The monitor amplifiers in the BC -6A are identified
as CUE FEED MON (5AR15) and PGM TB MON (5AR16) respectively. The circuit and construction of the monitor amplifier are similar to the program
amplifiers. The transformers 5T13 and 5T12 are mounted directly in front of the monitor amplifier printed circuit boards. To obtain rated output level of 6 watts, a pair of 6V6-GT tubes are used in a push-pull output stage. Approximately 1.32 volts input are required to obtain 1 watt output. The 9
6
7
6
5
4
transformer secondary has taps for 600/150/16/8/4 ohm loading.
3
Figure 7-Program Amplifier 5ARI3, 5AR14
Program Amplifiers 5AR13 - SAR14 The program or line amplifiers in the BC -6A are identified as CH 1 LINE AMP, 5AR13 and CH 2
Power Supplies 5PS1 -5PS2 The BC -6A has two power supplies, each powers a single channel and alternate pre -amplifiers to provide greater continuity of service. The 5PS1 supplies power
09
3V2 3V1 A
31/1 B
3C3
12 AX7
OUT
6V6
.047
3R10
430
10 'N PUT
2W
3C1
3R1
3R8
.047
tat
2
470K
7
4-10H 2
2W
3R9 470K
3
4119
It H2
2
3R5 1500
3R4
1 .0MEC
.2200
3R3 2201(
3C4
- 3c2
82 MMF
3R6
3C5
1114-C) 8
7
6.3V
4
3R2
3R11
430
3R7
39K
H2.4.--0 7
3C6 25
3V3
.047
6V6
39K T82MMF
OUT
05 04C
3C7
20
3 R12
680 0
285V
3R I3
FEED BACK
06
22K
3
0-753097-I
Figure 8-Schematic Diagram for Monitor Amplifier 5AR15, 5ARI6
6
3R8
3XV3
3XV2
3R9
3R10
3RI2
3R11
3R4
3C4
3C3
3C5
3XVI
3C6
3R6
3R7
3C7
3R5
3R13
3R2
3R3
Figure 9-Monitor Amplifier SARIS, 5AR16 Printed Circuit Board to odd numbered amplifiers and CH 1 VU meter obtained from a 5R4GY full -wave rectifier tube and lights; the 5PS2 supplies power to even numbered filtered by several stages of RC networks which proamplifiers and CH 2 VU meter lights. The power supply is designed for operation from
100-130 V 50/60 cycle power line. Transformer primary taps are available for nominal line voltage of 105, 115 and 125 volts. The plate supply voltages are 411
5R4-GY
6 X4
4C9
4C1
4CRI
vide both isolation and sufficiently low ripple for the various amplifier stages. A negative supply voltage is obtained from a 6X4 tube connected as a half -wave rectifier. The 6.3 v heater winding connects through
a hum adjustment potentiometer to a positive bias 902
4C5
4C4
TERMINAL BOARD 4T81 4R9 4C6 HUM ADJ. II5V AC
Figure 10-Power Supply SPSI, 5PS2
4C6
4C6
11
tn
no
tn
ma
0 0
0
3
a
1-1
'0
0
3 0
O
4761
4
1
1
471
b
0
D
16
15
0
14
13
0
6.3
t2
,;j3
60
10
9
sv
a
1
a
10K
1500
LED IN mi-I1641.
4R7B
10
4C7
4C1
4R7A
10
400
18K
4C314R4
1W
4R3 120K
--
80
.7=., 4C8
40 40 40
AIB c
750
4RIB
100 3000 VW-4-VVV-4 4R2
4RIA
OHMS & MICRO-MRAD5 PIED. LED IN MI -116373M1-11638
2W
4R1611
0.221'
HUM ADJUST
6X4
4V2
5R4 GY
4VI
ALL RESISTOR VALUE ALL CAPACITOR VALU UNLESS OTHERWISE 4RI6, 68011 WHEN 1 27008 WHEN
26V
NEW
24V
4R9 500
3
5V -2A
AGED
365V
7
0
5
600
4R5A
6
120K
4R8
40 401 40
A
4R55 600
C2
600
4R5C
40---4CT10
A1131.0
600
4R5D
4C4
4R12 5600
0290V It
0265V 07
-0290V 66
O
636096-2
O
H2
H1
O 190V89
QC
6.3V 5.4A
40.40 40
8 C.Ca ASS Cj 4C6
12K
4
0290V 83
JVV--0265V 64 265V 55
1 486 3900
40 ThIT) 477
4C5 A
IW
5600
4R14
IW
4R13 12K
0300v 82
0275V aq
4R5
140
23 4C2-6
SUS vi NG
SLEEVING BLK
-133 I.D.
.
RED/TEL. WHITE - TEL/GRN.7/010 66 I -D. SLEEVING,EILK.
148 150-151 160
805-6 8 6
8
60
ORANGE
4C1-6
v-151-487-3
4784
40-4781'1 20 4XV18
30-4XV1-2
-100-4R9-1
- 90-4 Rr3
31-401-5
4T412
100
40 4T1 1
31-4R2-1-'" 124-4CI-7
60-4T
132-4121.2-
62-471-8
1-4R5-1,
124 4R11-.
44
a5 46
64
63
62
61
59
57
BR N/BLK.
130133
120,-114
51
52 53 54 55
58
42 ID-
7/010
805 -/ 805'7 805-7 805-6
PARTS LIST 6905257 501 ITEM NO OPEN NETS 11:41,:.34R0 ..., 805-57 50
YELLOW BROWN
BLACK
REO/YEL.7/0 1 26 RECYBLK. 7/0126
TINNED COPPER 032DIA. WHITE- RED 7/0126
WIRE TABLE
RED/BLUE RED/ CAN.
titt
90 100
80
170.1182 190
.
60-b2
50
40.
30 -31
20 - 22
1- lI
IfVFAE,
90
-40101
4T1
4 XV 2-4 4XV I -
4T B3
SO
..
172
4XV2
-01' +487
.-151-4784
-21-.- 4R1-3
,-20 4T1,5
30 -471-6
120-411-7
4XV I
'444711
`61-4CR/-1
4C9
50 4013 2
---122-4T1-10
22-4CRI-4--4._.130-471-11
21.4XV1 B
481 2
4CRI 2 62 4C1-4 150-4CRI-3 120 4xV1-4
121
130
122 4XV2-3-
.-121-471-9
3- 4R16 15 PART OF FINAL ASSEMBLY
2- SOLDER ALL ELECTRICAL CONNECTIONS USING ITEM 67
908100
1228 130
308 20
TWISTED PAIRS. 1208121
NOTES I- THE FOLLOWING WIRES ARE
173
4R7
co
e
S
2
CR
9
voltage to minimize hum due to heater to cathode leakage. A full wave bridge type selenium rectifier supplies d.c. power to the speaker relays. A tap is provided on the transformer winding to compensate for ageing of the rectifier. Fixed Pads Etched wiring techniques are employed in the con-
struction of certain fixed attenuators. The same basic board accommodates various circuit configuration and
resistance values. The line input pads 5AT15 and 5AT16 are balanced, center -tapped H type having a loss of 30 db. The external monitor pads 5AT17 and 5AT18 are of the balanced L type having a loss of 30 db.
Relays
loudspeaker toggle switches. This bracket is designed
to hold the clip board which is used in broadcast stations to hold the standard 81/2" x 11" script sheets.
Overall System As shown in the block diagram, figure 22, there are five mixing channels for low level microphone inputs
and two low level inputs for either turntable, tape or film sources. Two high level mixing channels have been provided for the network and remote line input channels.
The inputs to the nine mixer channels are selected by means of the input switches 5S1 to 5S8. The gain of each of the high level mixing channels is controlled by the mixer attenuators 5AT1 to 5AT9. The output of each mixing channel may be connected to either the channel 1 or channel 2 mixer busses. The signal
Three relays are supplied mounted in the rear of the consolette. These are adequate for many station layouts; however, if two studios, with a control room
is then amplified by the CH 1 and CH 2 Booster
and an Announce Booth make up the station, an additional relay must be installed. Space has been left for the mounting of an additional relay (5K4) beside 5K3. This fourth relay has been included in the diagrams and photographs. Refer to the figures 22 and 23. Order this relay as MI -11748 Speaker
With the single -dual channel switch 5S22 in the dual
Relay Kit.
Script Holder As shown in figure 1, an aluminum bracket is mounted on the BC -6A Control Panel just under the
Amplifiers. The gain of these amplifiers is controlled
by the CH 1 and CH 2 sub -master gain controls. position, the output of each booster amplifier is fed through a section of the ganged Master gain control to the respective line amplifier. With the switch in the single position, the output of the two booster ampli-
fiers are combined and then fed to both line amplifiers. The LINE 1 switch 5S23 and LINE 2 switch 5S24 permit connection of either or both lines to either channel. Two VU meters, one for each channel, indicate program output level. Bridging pads are provided for connection of external monitor amplifiers to
812 31
Figure 13-Type BC -6A Consolette with Panel Open
10
both program channels. Two monitor amplifiers are provided. One for program monitoring and talk -back,
which connects to the speaker terminals through muting relays. The input to this amplifier is selected by means of a push-button switch 5518 from control room microphone for talk -back, from the output of channel 1 or channel 2 line amplifiers for monitoring and from three cue line inputs. A cue feed monitor amplifier is provided for feed-
ing cue or background sound to the studios or control room speakers without going through the
mixer output switches, and the talk -back switches to
prevent acoustic feedback from speaker to microphone and to prevent talkback to a studio which is On Air. The same switches and the line output switches also control the signal light circuits for the control room, studios and announce booth. There are provisions for adapting the interlock circuits to various types of installation.
With the switch 5S21 in the OVERRIDE position,
the remote lines are connected to the input of the
speaker muting relays. The position of the switches 5525, 5S26, 5S27 and 5S28 determines whether the speakers are fed from the Program-Talkback Monitor amplifier or the Cue Feed Monitor amplifier. The
program -monitor amplifier such that a call received over any of the remote lines will be heard over the monitor speakers. With the switch 5521 in the PHONE position, the remote lines or output channels may be monitored by means of headphones plugged -
input to the Cue Feed Monitor amplifier is selected by a rotary switch 5S19 from REC CUE, REC 1, REC 2,
in to the MON-PHONE jack 5J2. The line to be
NET, and REMOTE input channels and the CH I and CH 2 outputs.
The speaker muting relays are actuated by the microphone input selector switches and the associated
monitored is selected by means of the REMOTE CUE -PHONE switch 5S20. With the switch 5521 in the remote position, the output of the program -talk back monitor is fed to the remote line selected by the switch 5S20.
INSTALLATION Location of Consolette
WARNING Do not remove top cover or open front
The BC -6A Consolette may be installed on any flat top desk or table of suitable size. A minimum of 1/2 inch clearance should be allowed between the rear of
panel
with
turned
power
on
unless
the consolette and the wall. Refer to the typical installation and dimensional drawings figures 14
thoroughly familiar with this equipment. High voltages appear on the etched wiring boards and terminal blocks. Caution must
and 15.
be exercised when replacing tubes or servic-
ing this equipment with power turned on.
Type of Installation A typical broadcast installation for a dual channel studio system using the BC -6A Consolette is shown in figure 16.
Tube Installation
Tubes are not supplied with the consolette and must be ordered as MI -11484. Insert the tubes in the
8-1.06 DIA. KNOCKOU TS
16.25
3 EQUAL SPACES @ 2.88 - 8.64 In
90'
JAP1/4% SPACES
el, a ea = 8.64 1-
sib
GO"
38
Figure 14-Installation Diagram for BC -6A
Cki
:1.-r
483488-0
11
CONSOLETTE WINDOW
CONDUIT BOX MAY BE SET WALL OR FLOOR AS SHOWN
IN
a1
THREE
FLEXIBLE
STEEL CONDUITS
likAW
Pi Ca
0 S
Cj
lezn1
CONDUIT BOX
kj
ei
OPTIONAL METHOD OF INSTALLATION
ClIGl
WALL
rj fa
/7/7
/777. /C FLOOR
.d/2.17,777G
CONDUIT
<7a7
484337
Figure 15-Typical Cable installation sockets as called for by figure 20. Install the selected 12AY7 (MI -11299) tubes in the sockets nearest the front (or top) of the preamplifiers and booster amplifier printed wiring boards. Slip the shields over
the tubes where tube shield ground straps are provided on the sockets making certain that the ground strap is wedged between the tube envelope and the shield.
Power Supply Connections
The Consolette has two power supply units, 5P51
and 5PS2; each unit powers a single channel and alternate pre -amplifiers which provides a greater con-
tinuity of service. Both units are coMpletely selfcontained.
When shipped, the power transformers are connected for power line voltage of 110 to 120 volts. If the line voltage is outside this range, remove the four screws in each corner of the power supply chassis. Turn the power supply units chassis upside down.
4TB1 directly behind the power transformer on power supply 5P51.
Microphones, Turntables, Tape Recorders and Film Projectors Connect microphones and turntables according to the table of connections on 5TB1. All microphones installed in the same studio should be phased alike.
The input transformers 5T1 through 5T7 are connected for a balanced 150 -ohm input. If a 600 -ohm input is desired, reconnect as shown for 5T8 by removing the jumper between terminals 1 and 3 and 4 and 6 and jumper terminals 3 and 4. Remove the wire leading to terminal 5 and connect to terminal 4. If a 37.5 ohm input is desired, remove the jumpers between terminals 1 and 3 and 4 and 6 and jumper 1 and 5 and 2 and 6. A center tap is not available for this impedance. If the tape recorders and film projectors have a higher output than microphone
level
( -50 dbm), an attenuator network (pad)
Remove the wire leading to terminal #3 of the
should be connected between the output of each
power transformer 4T1. If the line voltage is between 100 and 110 volts, connect this wire to terminal #2; if it is between 120 and 130 volts, connect the wire to terminal #4. Replace the Power Supply. Connect the
recorder or projector and the input of the consolette.
a.c. power line to the barrier type terminal block
having a loss of 30 db are inserted ahead of the input
Remote Line and Network Inputs
Two 600/600 ohm pads, 5AT15 and 5AT16,
12
transformers 5T8 and 5T9 respectively. This pad may
be modified or removed if so desired. The input transformers 5T8 and 5T9 are connected for 600 -ohm input. If desired they may be connected for 150 -ohms by arranging the jumpers as shown in the schematic
and wiring diagrams for 5T1. Line Equalizer A line equalizer such
External Connections Audio wiring should be segregated into low level
(microphone, turntable, tape recorder or film) and high level (line input and output) cables or conduits; low level audio wiring should be kept away from AC power and signal light circuits. Connect a ground to
the heavy bus wire adjacent to the audio terminal as
the
RCA BE -2A
(MI -11752) may be connected between terminals
45-46 of 5TB1 (input) and 49-50 (output). If a four terminal equalizer is used, the jumpers between 45-49 and 46-50 should be removed. Program Lines
The program output lines, LINE 1 and LINE 2, are connected to terminals 73 and 74, and 75 and 76 respectively. A dividing and isolation network having a loss of 6 db is included in the consolette.
External Monitor Output External monitor amplifiers may be connected to the built-in bridging pads 5AT17 and 5AT18, having an output impedance of 600 ohms, by making connections to terminals 77 and 78 for the CH 1 EXT.
MON 1 and terminals 79 and 80 for the CH 2 EXT. MON 2. Loudspeaker Connections are connected to
The control room speakers terminals 89 and 90 and 91 and 92. Studio A speaker is connected to terminals 93 and 94; Studio B speaker
to terminals 95 and 96 and the Announce Booth speaker to terminals 97 and 98. The loudspeakers should have a voice coil impedance of 15-16 ohms. For other voice coil impedances, a matching transformer is suggested.
block. CONNECTIONS AT TERMINAL BLOCK 5TBI CR Microphone Studio A Microphone Announce Booth Microphone Studio A Microphone 2 Studio B Microphone 3
R5
R2
Figure 16-Fixed Pads 5AT15 15AT161 and 5.4717 ISATIS/
9-10 11-12 13-14 15-16 17-18 19-20
Tape Film
21-22 23-24 25-26 27-28 29-30 31-32 33-34 35-36 37-38 39-40
t I
Turntable Tape 2 Film
I
2
Turntable 2 Network Remote Line Remote Line 2 Remote Line 3 Remote Line 4 Remote Line 5 Equalizer Input Equalizer Output CUE I CUE 2 CUE
3J
44/
Line Amp CH 1 (output) Line Amp CH 2 (output)
PGM TB MON (Input CH 1) PGM TB MON (Input CH 2) Line t OUT
PGM TB MON (output) (4 ohm) PGM TB MON (output) (600 ohm) CUE FEED MON (output) (4 ohm) R2
7-8 h
Studio A Microphone 3 Studio B Microphone 4 Studio A Microphone 4 Studio B Microphone 5 Studio A Microphone 5
Line 2 OUT EXT. MON CH I EXT. MON CH 2
RI
1-2
3-4 5-6
CR CUE (speaker) CR MON (speaker) ST A (speaker) ST B (speaker) AN B (speaker) 24 v Relay supply .,,Control Room CH 1 Signal Light Rly. ',Control Room CH 2 Signal Light Rly. ',Studio A CH 1 Signal Light Rly. vStudio A CH 2 Signal Light Rly. ',Studio B CH 1 Signal Light Rly. 'Studio B CH 2 Signal Light Rly. ANN Booth CH 1 Signal Light Rly. ANN Booth CH 2 Signal Light Rly.
4I-42 43-44 45-46 49-50 53-54 55.56 57-58 65-66 67-68 69-70 71-72 73-74 75-76 77-78 79-80 81-82 83-84 87-88 89-90 91-92 93-94 95-96 97-98 101-102 105-106 107-108 109-11'0 111-112
113-114 115-116 117-118 119-120
13
Announce Booth Speakers
3.
Set mixer and sub -master and master gain con-
trols to max. gain position (5AT1 to 5AT11
If an announce booth speaker is to be used in addition to a single studio and control room, as a program source for the consolette, the announce
and 5AT14). Set SINGLE -DUAL CHANNEL switch 5S22 to DUAL. 4. With the LINE 1 output switch on CH 1, adjust the hum control 4R9 on the power supply 5PS1 for minimum hum at LINE 1 output terminals
booth speaker should be connected to the Studio B speaker terminals (95-96). If the announce booth is used in a two studio installation, an additional relay,
5R72 and capacitor 5C4 must be
73-74. With the LINE 1 output switch on
installed in the space provided on the relay bracket adjacent to the 5K3 relay. These components may be obtained by ordering the MI -11748 Speaker Relay
CH 2, adjust the hum control 4R9 on the power
resistor
5K4,
Kit.
All wiring
is
supply 5PS2 for minimum hum at LINE 1 output, terminals 73-74.
provided. Follow the wiring
diagram in making connections.
Cue Switches on Mixer Gain Controls
Warning Lights MI -11702A warning light relays, operated by the microphone input selector switches, mixer and line output switches may be connected to the appropriate terminals of 5TB1 (see table of connections). These relays in turn will actuate the MI -11706 Series of warning lights.
Turntable, Tape or Film channels are provided with switches which connect the output of the first two stages of the pre -amplifiers to the Cue Feed Mon. Amplifier when the cue feed selector switch 5S19 is in the REC. CUE position. This permits the cueing
The mixer attenuators 5AT6 and 5AT7 in the
of one turntable, tape recorder, or film projector while the other is feeding program. If it is desired to have cue switches on the other
Hum Adjustments
mixer control, attenuators with built-in cue switches may be obtained from Replacement Parts by ordering Stock #211003.
Before placing the consolette in operation, make the following adjustments: 1. Set the input selector switches 551 to 5S5 to the center OFF position. Make sure that the other inputs are terminated in a resistance. 2. Set the mixer output switches 5S9, 11, 13, 15,
VU Meter Attenuator Two VU meters, one for each channel, are
and 17 to CH 1 and 5S10, 12, 14 and 16 to
mounted on the front panel of the BC -6A Consolette. Each VU meter attenuator is designed to give a meter
CH 2.
reading of 100 (0 on the VU scale) with an output STUDIO
STUDIO
A WARNING
MIKEr
MINE 2
3
CONTROL ROOM MIKE
MIKE
MIKE 5
3
8
STUDIO MONITOR
M KE
MIKE
MI KE
WARNING
SPEAKER I
LIGHTS I
AUDITION
1S7
LIGHTS ANNOUNCE e--ION THE AIR
STUDIO MONITOR SPEAKER
THE AIR
AUDITION
I
STUDIO MONITOR SPEAKER I
CONTROL ROOM MONITOR SPEAKER
0
TURNTABLE WARNING
LIGHTS
rpm THE AIR 1 AUDITION
0
ANNOUNCE BOOTH
B
WARNING
NO I
000 URNTABLE NO 2
LIGHTS ON THE AIR
CONTROL
A TAPE REC.
NO2
0
0 0
0
00
0
0
0
,...4PROJECTOR
NO 2
PROJECTOR
000 00000 00" NETWORK
TAPE REC NO I
0
0000000
ROOM CUE
SPEAKER
AUDITION
BC -6A
FEED IN
A REM
LINEI IN
A
A
REM
REM
A AI,/ A
REM
REM
ExT
LINE,2 LINE) LINE4 LINES CUE I IN
IN
IN
IN
IN
EAT
EXT
CUE 2 CUES IN
CONTROL ROOM
Figure 17-Typleal Installation for Studio
IN
NO I
-TRANSMITTER LINE NO I -TRANSMITTER LINE NO2
A
A
CH I
CH 2
EXT MON
EXT MON
14
Single Studio Installation If the consolette is to be used with a single studio,
of 8 dbm delivered to a 600 -ohm load connected to the program output terminals for each channel. If it
is desired to have the meters read 100 at another
the Studio A and Studio B microphones may be
output level, replace resistors 5R33, 5R34, 5R35 for meter 5M1 and resistors 5R47, 5R48, 5R49 for meter 5M2 with the values contained in the table shown
combined in the one studio. To adapt the interlocking functions for the type of operation, the strapping
on terminal board 5TB2 must be chatiged. This
below:
terminal board is located on the inside of the panel 5R33
5R34
5R35
and 5R47
and 5R48
and 5R49
ohms
ohms
ohms
--2
0
0
447 883 1296 1679 2026 2334 2603 2833
3600 4047 4482 4896 5279 5626 5934 6203 6433
Output Level (DBA4)
2
4 6 8 10 12
14
between the two VU meters. Remove all jumper wires between terminals and add jumpers between the following terminals: 8-9, 12-19, 13-20, 14-15, 16-17, 21-22 and 23-24.
omit 16790 8180 5220 3690 2741 2091
Talkback Interlock The control circuits are interlocked to prevent talk back to a studio when a studio microphone feeds on output line through either channel. If it is desired to use CH 1 as one audition channel to permit talkback to the studios while a microphone is feeding an output line through channel 2, install jumpers between terminals 5-20 and 6-7 on terminal board 5TB2.
1621 1268
Control Circuits The consolette is shipped with the control circuits wired for installations consisting of a control room and two studios. Refer to figure 23.
1-- 5518 PROGRAM MONITOR
TALKBACK
IN PUT
ST A
HI H2
ST B
SCRIPT SUPPORT
CUE I CUE 2 CUE 3
REM
5A112
5519
MASTER 5/1114
POWER
5MI
5526 5529 5S27 5XF2 5528 5525 5XF1
5521
5M2 5AT8
5520
558
5J2
5ATI
5AT2
5AT3
5AT4
5ATIO
5ATI I
i
\
/
5AT7
5AT6
5AT5
SUBMASTERS
CH I a2
- MIXERS- 5512
551
5S2
L _L
5S3
554 5S5
_L
___
1_
556
_
-I - - - L -I- -I- -
5523 CHANNEL LINE! -SELECTORS CHI CH 2
- --
557 INPUT SELECTORS
J
Figure 18-Control Panel
5513 5524 5514 5516 LINE2
1
I
5515 I
5517
15
OPERATION The front panel, figure 18, and the chart Control Functions supply complete identification and function
of all controls and switches on the control panel. It is advisable to be familiar with this information for thorough understanding of the flexibility of the equipment.
Routine Procedure
Turn the power switch ON and allow the equipment to warm up approximately 5 minutes. The operating procedure for putting a program ON the air from either studio, using any combination of inputs is as follows: 1.
Select the input desired.
2. Move the corresponding CH 1/CH 2 mixer switch to the desired channel. 3.
MASTER gain control. In the usual operation, however, this control should be set between 16 and 20.
Set the LINE 1 and LINE 2 lever switches to the corresponding CH 1 and CH 2 positions. 2. Single Channel Operation Single Channel operation is the transmitting of one program over one or both output lines. The program sources may be adjusted for the desired output level by the individual mixers or in groups by the SUB -MASTER gain controls. These program sources
if divided between the outputs, CH 1 or CH 2, may be adjusted as desired using the SUB -MASTER gain
controls or the whole program may be faded in or out by means of the MASTER gain control. Set the LINE 1 and LINE 2 output switches to either CH 1 or CH 2 as the same program is being fed over both the CH 1 and CH 2 line amplifiers.
Turn corresponding mixer attenuator up.
gain controls to the level desired. The master gain control 5AT14 should normally be set at or near the
Program Monitoring 1. Set the LOUDSPEAKER toggle switches, 5S25 through 5S28, to the PROGRAM TALKBACK
maximum clockwise position.
position.
4. Turn the MASTER and SUB -MASTERS 1 or 2
5.
Check the level on the VU meter.
6.
Monitor the selected input by pressing the
2. Press pushbutton CH 1 or CH 2 of switch 5S18 to monitor the output of the line amplifiers for CH 1
PROGRAM TALKBACK Monitor -INPUT pushbut-
or CH 2 respectively.
tons CH 1 or CH 2, to the selected input. The NET
Adjust the PROGRAM TALKBACK MONITOR gain control 5AT12 for the desired output level
or REM inputs may be monitored through headphones plugged respectively.
into the
jacks
5J1
and
5J2
Single and Dual Operation with Master Gain Controls The SINGLE CHANNEL/DUAL CHANNEL switch should be set immediately after the power is
turned ON. While the program sources may be adjusted by the individual mixer, groups of mixers may be adjusted with the sub -master or master gain controls.
The possible adjustments for each type of operation are as follows: 1. Dual Channel Operation Dual channel operation is the transmitting of two programs over two separate outputs; each pro-
a combination of inputs. Each input is adjusted by its individual mixer. Then adjust the gram is
SUB -MASTER gain controls until the VU meters, one for each channel, indicate peaks of 100%. If it is desired to fade each channel independently, use the appropriate sub -master gain control. If it is desired to fade both
channels simultaneously,
use
the
3.
over the loudspeakers.
4. The program monitor will be heard over the control room, studio and announce booth speakers provided the microphone in the same room is not
"ON". By "ON" is meant that an input selector switch is set to the particular room (Control Room, Announce Booth, Studio A or B) and its associated mixer output switch is in either the CH 1 or CH 2 position.
Talkback 1. To talkback to Studio A or B
a. Make certain that the studio selected for the talkback operation is not on the air. Due to interlocking circuits, it is impossible to talk back to a studio which is on the air.
b. Press the pushbutton STA or STB on the TALKBACK switch 5S18.
c. Use the control room microphone.
d. Adjust the level by means of the PROGRAM-TALKBACK MONITOR gain control 5AT12.
16
CONTROL FUNCTIONS Panel
Designation
Symbol
Color Knob
Coordinated
Function
with
INPUT SELECTOR SWITCHES MIC
1
5S1
Black
Connect microphone in control room or in Studio A through preamplifier 5AR1 to mixer 5AT1
5S9, 5AT1
5S2
Black
Connects microphone in announce booth or in Studio A through preamplifier 5AR2 to mixer 5AT2
5S10, 5AT2
5S3
Black
Connects microphone in Studio B or
Studio A
5S11, 5AT3
CR
ST A MIC 2 AN B ST A MIC 3 ST B ST A MIC 4 ST B ST A MIC 5 ST B ST A REC I TAPE 1
in
through preamplifier 5AR3 to mixer 5AT3 5S4
Black
Connects microphone in Studio B and Studio A through preamplifier 5AR4 to mixer 5AT4
5512, 5AT4
5S5
Black
Connects microphone in Studio B and Studio A through preamplifier 5AR5 to mixer 5AT5
5513, 5AT5
5S6
Blue
Connects tape recorder 1, film projector 1 or turntable 1 through preamplifier 5AR6 to mixer 5AT6
5S14, 5AT6
5S7
Blue
Connects tape recorder 2, film projector 2 or turntable 2 through preamplifier 5AR7 to mixer 5AT7
5515, 5AT7
5S8
Black
Connects from 5 lines through the preamplifier 5AR9
5S17, 5AT8
FILM I TT 1 REC 2
TAPE 2 FILM 2
TT 2 REMOTE INPUT
to mixer 5AT9
MIXER ATTENUATORS MIC
5AT1 5AT2
Black Black
Controls the gain of mic in control room and Studio A
REC 1
5AT3 5AT4 5AT5 5AT6
Black Black Black Blue
REC 2
5AT7
Blue
NETWORK REMOTE
5AT8 5AT9
Black Red
Controls the gain of mic in Studio B and A Controls the gain of mic in Studio B and A Controls the gain of mic in Studio B and A Controls gain for tape reproducing, film or turntable for unit 1 Controls gain for tape reproducing, film or turntable for unit 2 Controls gain of network line Controls gain for remote lines (5)
1
MIC 2 MIC 3 MIC 4 MIC 5
Controls the gain of mic in announce booth and Studio A
5S1, 5S9 5S2, 5510 5S3, 5S11 5S4, 5S12
5S5, 5SI3 5S6, 5S14 5S7, 5S15
5J1, 5S16 5S8, 5S17
CHANNEL SELECTOR SWITCHES
CH 1- CH 2
559 5S10 5S11 5512 5S13 5S14 5S15
5516 5517
Black Black Black Black Black Blue Blue Black Red
5AT I
Connects the output of preamplifiers
to CH 1
or CH 2 bus
GAIN CONTROLS MASTER
SUB MASTER I SUB MASTER 2
5AT14 5ATI1 5AT10
Black Green Green
Controls gain of CH 1 and CH 2 outputs Controls the gain for CH 1 output only Controls the gain for CH 2 output only
bus
5AT2 5AT3 5AT4 5AT5 5AT6 5AT7 5AT8 5AT9
17
Panel Designation
LINE 1 LINE 2
SINGLE CHANNEL
Symbol
Color Knob
5S23 5S24
5S22
LINE OUTPUT SWITCHES Selects channel 1 or channel 2 output Green Selects channel 1 or channel 2 output Green Black
SELECTOR SWITCH Selects type of operation; two independent output channels (DUAL) or single output channel with split mixers (SINGLE)
REM CUE PHONE
5S20
REMOTE PHONE OVERRIDE
5521
REMOTE LINE CONTROLS Positions: CH 1- CH 2 - Remote Line 1 through 5. Black Selects input to monitor phone (5J2). Selects remote line for talk -back and CUE Three -position switch; PHONE to hear the remote Black program and determine if it is one desired through
5S8 5521
5AR16
headphones in jack 5J2. OVERRIDE position connects input of PGM TB MON to unused remote lines. Signal from remote line overrides program being monitored. REMOTE position used to talkback to remote line.
MONITORING CONTROLS Selects input for program talkback monitor channel
5SI8
MONITOR INPUT ST A ST B REM
CH 1 CH 2 CUE 1 CUE 2 CUE 3 PROGRAM TALK-
Coordinated with
4
DUAL CHANNEL
PROGRAM
Function
5AT12
Red Red Red
Pushbuttons Talkback to Studio A
Black Black Black Black Black
Pushbuttons
Black
Adjusts output Level of program-talkback monitor
Talkback to Studio B Talkback to Remote Line
5ATI2
5S20, 5S21
Monitor Program CH I Monitor Program CH 2 Monitor Cue Line 1 Monitor Cue Line 2 Monitor Cue Line 3 5518
amplifier
BACK
MONITOR GAIN CUE FEED
5S19
Black
Selects input for Cue Feed Monitor amplifier
5ATI3
MONITOR INPUT SELECTOR OFF
REC: CUE
Recorded Input Channels
REC 1 REC 2 NET REMOTE
REC. Input 1 REC. Input 2 NET Remote lines
CH 1 CH 2
Channel 1 Channel 2
CUE FEED MONITOR GAIN CONTROL
5AT13
Black
5S25 5S26 5S27 5S28
Chrome Chrome Chrome Chrome
1
to 5
Controls output Level of Cue Feed Monitor Amplifier
LOUDSPEAKER SWITCHES CR
ST A ST B AN B
Control Room Speaker Studio A Speaker Studio B Speaker Announce Booth Speaker
Each toggle switch has two positions: PROGRAMTALKBACK: CUE FEED
5S6, 5S7 5AT6, 5AT7 556, 5AT6 5S7, 5AT7 5AT8 5S8, 5AT9
5S19
18
In a single studio installation, use the STA
e.
3.
button to talk to the studio and the STB button to talk to the Announce Booth.
a. Set at 5S19 to the NET or REMOTE
f. In a two -studio installation, use any talkback
position.
button to talk to the Announce Booth.
b. Select the remote source by means of 5S8.
NOTE : The above procedure "f" is applicable
c. Adjust the level by means of 5AT8 or 5AT9 and 5AT13.
only when the optional relay is installed. 2.
To talkback over a remote line
a. Press the REM pushbutton of the TALK -
4. To derive cue or background with switch 5S19 set at CH 1 or CH 2
BACK switch 5S18.
a. Care should be taken not to feed background
b. All loudspeakers are silent.
to a studio from CH 1 or CH 2 if a microphone in that studio is a source for CH 1 or CH 2 since the loudspeakers are not muted
Select the remote line on the REMOTE -CUE PHONE selector switch 5S20.
c.
when connected to the cue feed monitor
d. Place the OVERRIDE -PHONE -REMOTE switch 5S21 at the REMOTE position.
amplifier.
b. Background may be fed to a studio from a program originating in another studio, control room or announce booth provided there
Cue Line Monitoring Three cue lines may be selected by means of the
CUE 1, CUE 2 and CUE 3 buttons of the switch 5S18. This is heard over the program talkback monitor.
To cue or feed background from NETWORK or REMOTE LINES
is sufficient acoustic isolation.
Locating Program Over Remote Lines
If it is not known over which of the five remote lines a program is to be received, either of the followCue and Background Set the loudspeaker toggle switches, 5S25 throughing procedures may be used: 5S28 which correspond to the speaker over which cue 1. Using Headphones
or background sound is to be transmitted to the CUE FEED position.
a. Plug a headset into the MONITOR PHONE jack 5J2.
NOTE: If a separate CUE FEED speaker is installed in the Control Room, it is not necessary to
b. Set the switch 5S21 to the PHONE position.
throw the switch 5S25 to the CUE FEED position.
c. Rotate the. switch 5S20 through line 1 to line 5 position until the desired program is
1.
To cue recorded input channels a. Set the cue feed monitor input selector switch
heard.
d. The pointer of the switch knob (5S20) indicates the number of the desired line.
5S13 to REC CUE position.
b. Set the selector switch 5S6 or 557 to the source
to be cued-TAPE, TT, FILM.
c. Turn the mixer gain control of the channels to be cued to 0 or maximum counter clockwise position.
d. Adjust the gain by means of CUE -FEED MONITOR GAIN control, 5AT13.
2. To cue or feed background from the REC 1 or REC 2 channels a. Set 5S19 to REC 1 or REC 2 position. b. Set 556 or 5S7 to the desired source.
c. Output level is determined by the position of the mixer gain controls 5AT6 or 5AT7 and 5AT13.
2.
Using Monitor Speaker a. Set the switch 5S21 to the OVERRIDE position.
b. Rotate the switch 5S20 through line 1 to line 5 positions until the desired program is not heard.
c. The pointer of the switch (5S20) knob indicates the number of the desired line. NOTE: With either of the above methods, it is not possible to hear a program originating over a remote line which is selected by the remote input selector switch 5S8. Do not depress the CH 1 or CH 2 buttons of the PROGRAM-TALKBACK MONITOR input selector switch 5S18 while using the override feature.
18
e. In a single studio installation, use the STA
3. To cue or feed background from NETWORK
button to talk to the studio and the STB
or REMOTE LINES
button to talk to the Announce Booth.
a. Set at 5S19 to the NET or REMOTE position.
f. In a two -studio installation, use any talkback
button to talk to the Announce Booth.
NOTE: The above procedure "f"
is
b. Select the remote source by means of 5S8.
applicable
c. Adjust the level by means of 5AT8 or 5AT9 and 5AT13.
only when the optional relay is installed. 2. To talkback over a remote line
a. Press the REM pushbutton of the TALK -
4. To derive cue or background with switch 5519 set at CH 1 or CH 2
BACK switch 5518.
a. Care should be taken not to feed background
b. All loudspeakers are silent. c.
to a studio from CH 1 or CH 2 if a microphone in that studio is a source for CH 1 or CH 2 since the loudspeakers are not muted
Select the remote line on the REMOTE -CUE PHONE selector switch 5S20.
when connected to the cue feed monitor
d. Place the OVERRIDE -PHONE -REMOTE switch 5S21 at the REMOTE position.
amplifier.
b. Background may be fed to a studio from a program originating in another studio, control room or announce booth provided there
Cue Line Monitoring Three cue lines may be selected by means of the
CUE 1, CUE 2 and CUE 3 buttons of the switch 5518. This is heard over the program talkback monitor.
is sufficient acoustic isolation.
Locating Program Over Remote Lines
If it is not known over which of the five remote lines a program is to be received, either of the followCue and Background Set the loudspeaker toggle switches, 5S25 throughing procedures may be used: 5S28 which correspond to the speaker over which cue
1.
or background sound is to be transmitted to the
Using Headphones
CUE FEED position.
a. Plug a headset into the MONITOR PHONE jack 5J2.
NOTE: If a separate CUE FEED speaker is installed in the Control Room, it is not necessary to
b. Set the switch 5521 to the PHONE position.
c. Rotate the. switch 5S20 through line 1 to line 5 position until the desired program is
throw the switch 5S25 to the CUE FEED position. 1.
To cue recorded input channels a. Set the cue feed monitor input selector switch
heard.
d. The pointer of the switch knob (5S20) indicates the number of the desired line.
5S13 to REC CUE position.
b. Set the selector switch 5S6 or 5S7 to the source
to be cued-TAPE, Tr, FILM.
c. Turn the mixer gain control of the channels to be cued to 0 or maximum counter clockwise position. d. Adjust the gain by means of CUE -FEED MONITOR GAIN control, 5AT13. 2.
To cue or feed background from the REC 1 or REC 2 channels a. Set 5S19 to REC 1 or REC 2 position. b. Set 5S6 or 5S7 to the desired source.
c. Output level is determined by the position of the mixer gain controls 5AT6 or 5AT7 and 5AT13.
2.
Using Monitor Speaker a. Set the switch 5S21 to the OVERRIDE position.
b. Rotate the switch 5S20 through line 1 to line 5 positions until the desired program is not heard.
c. The pointer of the switch (5520) knob indicates the number of the desired line. NOTE: With either of the above methods, it is not possible to hear a program originating over a remote
line which is selected by the remote input selector switch 5S8. Do not depress the CH 1 or CH 2 buttons of the PROGRAM-TALKBACK MONITOR input selector switch 5S18 while using the override feature.
19
To Feed Cue to a Remote Line 1. Select the program to be fed over a remote line on the Program Talkback Monitor amplifier. 2.
Select the remote line over which the cue signal
is to be fed by means of the switch 5S20. 3. Set the switch 5521 to REMOTE position. 4. Adjust the level by means of the PROGRAMTALKBACK MONITOR GAIN control 5AT12. Emergency Operation In case of failure of one power supply, the program
may be continued with reduced facilities on one channel. Power Supply 5PS1 supplies power to odd numbered pre -amplifiers, channel 1 booster and line amplifiers, cue feed monitor amplifier, and channel 1 VU meter lamps. Power Supply 5P52 supplies power to the even -numbered pre -amplifiers, the channel 2
booster and line amplifiers, the program talkback
monitor amplifier and the channel 2 VU meter lamps. Each power supply is individually fused. The fuse holders are mounted on the front panel between the VU meters.
In case of failure of the power supply 5PS1, switch
the mixer output selector switches and line output selector switches to CH 2. Use only MIC 2, MIC 4, REC 1 and NET mixing channels. If a remote program is to be carried, the remote line should be patched into the network input. In case of failure of the power supply 5PS2, switch the mixer output selector switches and the line output switches to the channel 1 position. Use only MIC 1,
MIC 3, MIC 5, REC 2 and REMOTE mixing channels. If it is necessary to transmit a network
program, patch the network line into one of the remote line inputs. Use the cue feed monitor amplifier for monitoring the program.
MAINTENANCE The BC -6A Dual Channel Audio Consolette may be easily serviced without disturbing the installation. The top cover which can be easily removed is fastened to the consolette by four Camloc fasteners. The front panel is hinged at the bottom and secured at the top by two Camloc fasteners. The front panel is held in the open position by two fall -supports.
Tubes
The tubes of the amplifiers and power supply should be checked periodically either in a tube tester
or by measuring the socket voltages. Refer to the Tube Socket Voltage chart. The values shown are with a voltmeter having a resistance of 20,000 ohms -per -volt. Slight variations may be due to component tolerances.
TUBE SOCKET VOLTAGES Tube Socket
2
1
4
3
5
6
7
8
9
-
1.7-2.0
**
-0.2 +0.2
PRE -AMPLIFIER (5AR1 - 5AR9) IXVI IXV2
175-205 115-140
0
1
0
4-5
*
*
140-170
3-4
*
*
285
0
*
BOOSTER -PREAMPLIFIERS (SARI 0 - SAR12) IXVI IXV2
175-205 115-140
0 0
4-5 3-4
*
*
*
140-170 285
PROGRAM AMPLIFIER (5AR13 - 5AR14) 2XV1 2XV2 2XV3
130-150
0
280 280
0 0
1.15-1.40 10-12 10-12
*
*
180-210
*
*
*
*
280 280
MONITOR AMPLIFIER (SARIS - 5AR16) 3XV I
3XV2 3XV3
4XVI 4XV2
--380
125-145
0 *
*
I
-
380***
--POWER SUPPLY (5PS1 - 5PS2) -- -380
1.10-1.30 285-290 285-290
290 290
365 AC*
365 AC 365 AC*
*
5 VAC between points marked ***
6.3 VAC between terminals marked by single and double asterisks.
225-250
365 AC
-
1.7-2.0 110-130
**
** **
0
55-65 10-12 10-12
-
38-48
** **
15-18 15-18
-
380***
---
0
0
365 AC
-
**
**
**
I
5R89
5R88
5R18
5RI7
5R15
5R16
5R13
5R14
5R I 2
5R I
5J I
5ATI
5R8
5R70 5R69
5AT2
5TB2
.7.: 1. ITA.77-fl
5AT3
5R37
5AT II
.
5R38
1
5R40
.
\Alt'
5R41
LIA,. LLLLI.
Ili
11111111w":7r
5ATIO
5AT5
5R36- 5R34 - 5R33 -5R35 -5R39 5R50 - 5R48 -5R47 -5R49 -5R53 5R5I - 5R52 -5R54 -5R55
5AT4
5R 7 I
5R72
5AT6
5R43 5R42
5R57 5R58
e
5R26 5AT I 4
5AT7 5 AT9
5R25
5R20
SATS
5R22
5R2 I
5R24
5R23
5R28
5R27
5R73
5R74
R75
O
5ARI-5AR7
PREAMPLIFIERS
FASTENER
CAM LOC
9-M1-11299 SEL,I2AY7
II-12AY7
5110
5T13
5TI I
5T12
6V6GT
12AU7
T2AX7
5AR13
12AX7
5519
5ARI5
5AT13
5AT12
5M
5TB2
5525-28
5TBI
6V6GT HUM ADJ.
5AR16
5T14
I2AX7
I2AU7CHI 12AX7
5M2
5ATI4
5ARI2
AM PLI FIER
BOOSTER
5R4GY 5CI 5R65 5C3 5K3 5PSI 6X4 5R64 5R66 5R67
SEL12AY7
AMPLIFIERS 5AR9 5AR8
LINE
5ARIO
5AR11
AMPLIFIERS
BOOSTER
5PS2
5R4-GY
6X4
5R68
F 5C4
OPTIONAL
22
Fuse
which is bonded a thin sheet of copper. The conduc-
Two power fuses are located on the control panel center top. These fuses should be replaced only with
tor pattern is formed by an etching process. Component leads are threaded through holes which are punched into the board. The ends of the leads extending through the board are bent over against the copper conductors. The complete assembly is
a Type 3AG, 3 amp time lag fuse.
Care of Variable Attenuators To remove the attenuator cover, press the latchsubsequently dip -soldered. under the cover and remove it by twisting the cover counterclockwise. The rear section of the MASTER gain control 5AT14 may be removed to gain access to the contacts of the front section. Apply Davenoil
to the contacts and rotate the knob several times. Wipe the contacts clean using a soft cloth and apply a thin film of Davenoil. Replace attenuator cover. A bottle of Davenoil is packed with the consolette.
Components may be replaced easily by following these simple instructions. Care should be observed not to break or crack the board by undue stress or to damage the bonding adhesive by applying too much heat during soldering. 1.
1. A small (35 watt or less) pencil type soldering iron
Care of Switches. Relays and Sockets
The switches and relay contacts do not require periodic maintenance and should not be tampered
2. A pair of small diagonal cutters 3. A pair of small long nose pliers 4. A scribe or pick
with. Contacts of the tube sockets are cleaned best, by
pulling tubes in and out of the socket several times. Replacement of Input Transformers 5T1 to 5T9 To gain access to the input transformers, the preamplifier mounting shelf must be loosened. Remove the top cover and open the front panel if desirable. Remove the four screws and hardware located between the SARI and 5AR2 and between the 5ARIO and 5AR11 amplifier circuit boards. This hardware is visible in figure 20. Lift the shelf up from the front and tilt it backwards to expose the transformers.
5. A small knife 2.
by means of the long nose pliers. This is done to obtain extra lead length. In the case of larger components, clip the leads as close as possible to the component body.
To gain access to the terminals and mounting hardware of the output transformers and pads 5AT17 and 5AT18, the mounting shelf of the program and monitor circuit boards must be tilted up. Remove the four screws, one from each corner. No leads need to be removed from the circuit boards to service these
b. Using long nose pliers, form a loop of the lead ends as shown in figure 21.
c. Thread the leads of the new components through these loops. Cut off the excess lead, crimp and solder the connection.
assemblies.
solette cabinet by four screws, one in each corner. To gain access to the components and wiring underneath the chassis, remove the screws and carefully turn the power supply upside down. The interconnecting leads are long enough to permit this change in position without disconnecting them. Make sure
that the power is turned off when attempting to service the power supplies.
Servicing of the Etched Wiring Board Assemblies
The etched wiring boards are made of .062 inch thick paper base phenolic laminate to one side of
Emergency Repairs If it is known which compound is defective, it may be replaced without removing the board from its mounting.
a. In the case of a small component, such as a 1/2 or 1 watt resistor, cut the component in half using diagonal pliers. Crush the body
Replacement of Output Transformers 5T10 thru 5T13, and Attenuators 5AT17 and 5AT18
Power Supplies 5PS1 and 5PS2 Each power supply chassis is secured to the con-
Tools Required
3.
Permanent Repairs
a. Remove the hardware fastening the board to the chassis and tilt board up. b. Isolate the defective component. If it is necessary to disconnect a component from the circuit for test, heat the junction of the component lead and the etched wiring with the soldering iron. The heat should be concentrated on the component lead rather than the etched wiring pattern. Pry up and straighten the bent -over portion of the com-
ponent lead with a knife blade, then pull lead through the hole with pliers.
23
c. To remove the defective component, snip the leads off at the component side of the board. See figure 21.
d. Using a small soldering iron (35 watt or less) heat the leads and remove them from
the printed wiring side of the board. Be careful not to apply too much heat or force to avoid damage to the thin copper conductors.
e. Clean and preform the leads of the new component and insert through the holes until the component body is tight against
Using the old socket as a guide, bend terminal leads at right angles to fit mounting
holes provided in board. Insert socket terminals through holes making sure that socket terminal numbers correspond to the numbers etched on the board near the tube socket mounting holes. Bend socket terminals radially inward. If neces-
sary, clip off excess length to prevent short circuit
adjacent conductors. terminals to the etched wiring. with
Solder
TO REMOVE DEFECTIVE COMPONENT
HEAT 8 PULL OUT HERE
the board.
f. On the circuit side, grasp the component lead and bend it over in the direction of the circuit pattern.
g. Crimp the wire tightly against the board (see figure 21), and cut off the excess component
lead. Leave about 1/16 inch of wire protruding from the edge of the hole. h. Heat the lead and apply rosin core solder. DO NOT USE PASTE OR ACID FLUX. Remove excess rosin from the joints with
GUT OFF HERE
TO INSTALL NEW COMPONENT
BEN2
GUT OFF HERE
PLIERSRE
SOLDER
CONDUCTOR
STRIP
alcohol.
Replace the circuit board, using the original
i.
COMPONENT
BOARD
hardware. 4.
TO REMOVE COMPONENT FROM TOP OF CIRCUIT BOARD
Replacement of Tube Socket
Heat each socket terminal lead and pry up and straighten with knife blade. Pull socket out applying heat to terminal leads, if necessary. Clean holes free of solder. Prepare new socket for installation as follows: If tube shield ground strap (stock #210773) is required, insert strap from top of socket in slot provided until firmly
SOLDER PIGTAIL OF NEW COMPONENT TO LOOPED END.
-8901158-1
seated. Small ridges on strap must point out-
ward. Bend lead terminal of strap radially outward.
Figure 21-Replacement of Components in Printed Circuits
LIST OF PARTS Symbol
5AR1 to 5AR9
5ARIO, 5AR11, 5AR12
Description
Stock No.
5AR13, 5AR14
CONSOLETTE Preamplifier: circuit board assembly complete with 5 capacitors, 13 resistors, 2 tube sockets and 2 ground straps. (Components listed under Preamplifier) Preamplifier: circuit board assembly complete with 5 capacitors, 12 resistors, 2 tube sockets and 2 ground straps. (Components listed under Preamplifier)
Symbol
Description
Program Amplifier: circuit board assembly complete with 6 capacitors, 12 resistors and 3 tube sockets. (Components listed under Program Amplifier)
210998
210999
SARIS, 5AR16
Stock No.
211000
Monitor Amplifier: circuit board assembly complete with 7 capacitors, 13 resistors and 3 tube sockets. (Components listed under Monitor Amplifier)
211001
24 Description
Symbol
5AT1 to 5AT5
5AT6, 5AT7
5AT8 to 5AT11
5AT12, 5AT13 5AT14
Resistor: variable, attenuator, 100,000 ohm, pot., 20 steps, 2DB per step, last step tapered to infinity Resistor: variable, attenuator, 100,000 ohm, pot., 20 steps, 2DB per step, last step tapered to infinity with cue switch Resistor: variable, attenuator, 100,000 ohm, pot., 20 steps, 2DB per step, last step tapered to infinity. Same as 5AT1 Resistor: variable, composition,
100,000 ohm ± 10%, 2 w
StockNo.
5R42 to 5R44 5R45, 5R46 21 1002
5R47 5R48
211003 5R49
5R50 to 211002
209286
Resistor: variable, attenuator, 15,000/15,000 ohm, dual pot.,
20 steps, 2DB per step, last step 5AT15, 5AT16 5AT17, 5AT18
5C1 to 5C3 5C4 5C5
5F1, 5F2 5J1, 5J2 5K1, 5K2, 5K3 5M1, 5M2 5PS1, 5PS2
SRI to 5R5 5R6 5R7 5R8
5R9, 5810
5R11 to 5R28 5R29
tapered to infinity Pad: Parts listed under Fixed Pads Fixed Pad: Parts listed under Fixed Pads Capacitor: fixed, paper, 0.47 mf ± 20%, 200 v
Meter: VU
205249
5R30, 5R31
Resistor: fixed, composition, 15,000
5R32
Resistor: fixed, composition, 18,000 ohm ±5%, 1/2 w. Same as 5R29
5R33
5R35
Resistor: fixed, composition, 2000 ohm ± 5%, 1/2 w Resistor: fixed, composition, 5600 ohm ±5%, 1/2 w Resistor: fixed, composition, 2700
5R36 to
Resistor: fixed, composition, 100
ohm ±5%, 1/2 w
ohm ±5%, 1/2 w 5R41
73787
Power Supply: Parts listed under Power Supply Resistor: fixed, composition, 150 ohm ±10%, 1/2 w Resistor: fixed, composition, 4700 ohm ± 10%, 1/2 w Resistor: fixed, composition, 680 ohm ± 10%, 1/2 w Resistor: fixed, composition, 560 ohm at 10%, 1/2 w Resistor: fixed, composition, 100,000 ohm ±5%, 1/2 w Resistor: fixed, composition, 22,000 ohm ±5%, 1/2 w Resistor: fixed, composition, 18,000
ohm ±5%, 1 w
Resistor: fixed, composition, 560 ohm ± 10%, 1/2 w. Same as 5R8 Resistor: fixed, composition, 27,000
ohm ± 5%, 1/2 w Resistor: fixed, composition, 2000 ohm ±5%, 1/2 w. Same as 5R33 Resistor: fixed, composition, 5600 ohm ± 5%, 1/2 w. Same as 5R34 Resistor: fixed, composition, 2700 ohm ± 5%, 1/2 w, Same as 5R35
502156
502327
502220 502256 502227
Resistor: fixed, composition, 100
ohm ±5%, 1 w. Same as 5R36
5R56 to
Resistor: fixed, composition, 560
5R58 5R59
Resistor: fixed, composition, 100,000
ohm ±10%, 1/2 w. Same as 5R8
512110
502156
ohm ±5%, 1/2 w, Same as 5R9
502410
Resistor: fixed, composition, 27,000 ohm ± 5%, 1/2 w. Same as 5R45 5R61, 5R62 Resistor: fixed, composition, 1500
502327
ohm ±5%, 1 w
512215
5R63
Resistor: fixed, composition, 820
5R64 to
Resistor: fixed, wire wound,
ohm ±5%, '1/2 w
Jack: open circuit Relay: D.P.D.T.
ohm ±5%, 1/2 w
5R34
211004
73599 99164 53401 205255
Fuse: 3 amp, 125 v, slow -blow type
No.
5R60
Fixed
Not Used Capacitor: fixed, paper, 2700 mmf ± 10%, 600 v
5R55
Stork
Description
Symbol
ohm ± 10%, 5 w Not Used 5R69 to Resistor: fixed, wire wound, 15 ohm ± 10%, 5 w. Same as 5R64 5R71 5R72 Not Used 5R73, 5R74 Resistor: fixed, composition, 4700 ohm ± 10%, 1/2 w. Same as 5R6 Resistor: fixed, composition, 680 5R75 ohm ± 10%, 1/2 w. Same as 5R7 5R76 to Resistor: fixed, composition, 4700 5R85 ohm ± 10%, 1/2 w, Same as 5R6 5R67 5R68
5R86 502115
502247 502168
502156 502410 502322
5R87
502318 502220
ohm ± 10%, 1/2 w Resistor: fixed, composition, 150 ohm ± 10%, 1/2 w, Same as 5111 5R89 Resistor: fixed, composition, 10,000 ohm ± 10%, 1/2 w. Same as 5R87 5R90, 5R91 Resistor: fixed, composition, 560
ohm ±5% 1/2 w 5R92, 5R93 Resistor: 5S1 to 5S5
5S6, 5S7 5S8
502247 502168 502247 502168
502310 502115
502310
502156
fixed, composition, 680
ohm ±10%, 2 w Switch: key lever, 4 "A", 4 "B" locking Switch: key lever, 4 "D" type contacts, 2 way locking Switch: rotary, wafer type, 14 circuit, 3 section, 6 position, shorting contacts
5S9 to
Switch: key lever, 4 "A", 4 "B"
5S13
and 2 "D" type contacts, 2 way
5514 to 512110
97441
522168
and 4 "D" type contacts, 2 way
502256 502227
Resistor: fixed, composition, 680 ohm ± 10%, 1/2 w, Same as 5R7 Resistor: fixed, composition, 10,000
97441
5R88
502318 502315
502182 15
5S17 5S18
locking Switch: key lever, 2 "D" type con tacts, 2 way locking Switch: push, multiple, 8 plungers, 3 non -locking, 5 interlocking
211008
211009
211010
94141
94142 94440
25
5519
5520
Stock No.
Description
Symbol
Switch: rotary, wafer type, 1 circuit, 1 section, 8 position, non -shorting contacts Switch: rotary, wafer type, 4 circuit, 4 section, 8 position, non -
shorting contacts 5521
5522
5523, 5524
5S28 5S29
1C2
Capacitor: fixed, paper, 0,1 ± 10%, 400 v
1C3, tC4
Capacitor: fixed, paper, 0.047 mf ±10%, 400 v. Same as 10.
105
Capacitor: fixed, paper, 1.0 mf ± 10%, 200 v Resistor: fixed, composition, 8200
211013
Switch: key lever, 2 "A", 4 "B" and 2 "C" type contacts, 2 way locking Switch: rotary, wafer type, 3 circuit, 1 section, 2 position, shorting contacts
1R1
Switch:
toggle,
SPST,
3
211015
1R5
Resistor: fixed, composition, 160,000
52133
1R6
46425 205326 209281 207434 211017 205914
1R7
Resistor: fixed, composition, 39,000 ohm ± 10%, 1/2 w Resistor: fixed, composition, 5600
211030 211031 32120 32121
1R10
Resistor: fixed, composition, 91,000
IR11
Resistor: fixed, composition, 100,000
1R12
ohm ±10%, 1/2 w, Same as 1R2 Resistor: fixed, composition, 9100 ohm ±5%, 1/2 w
1R13
Resistor: fixed, composition, 300,000
1R14
ohm ± 5%, 1/2 w Resistor: fixed, composition, 56,000 ohm ± 10%, 1/2 w
IRIS
Resistor: fixed, composition, 1200
IXV1,
Socket: tube, 9 contact miniature
211014
ohm ± 10%, 1/2 w
I.D.
I.D.
Fastener: receptacle, silicon, bronze Fastener: stud steel, with retaining ring Grommet: rubber
Knob: control, black with white filled pointer, 2" dia.
210391 94641 96145 37396 17269
Knob: control, blue with white filled pointer, 2" dia. Knob: control, red with white filled
pointer, 2" dia.
socket
94444
PROGRAM AMPLIFIER
96928 94442 96929 94441 211029 20752 98480 1343"
ht., aluminum
Support: fall, single link, 61/4" lg. with 51/2" slot
211035 94647
PREAMPLIFIERS 1C1
Capacitor: fixed, paper, 0.047 mf ± 10%, 400 v
30671
502430 502356 502212 209284
Strap: ground, for miniature tube
Knob: control, green with white
Shield: tube, 53/64" I.D. x
502410
1XV2
17268
94446
filled pointer, 2" dia. Knob: key lever switch, blue Knob: key lever switch, green Knob: key lever switch, red Mounting: shock, isolator Oil: attenuator Ring: retaining, fastener
512391
ohm -±- 10%, 1/2 w
Knob: control, black with white filled pointer, 1-7/16" dia.
502420
502510
ohm ±5%, 1 w
209652
Clamp: cable, white nylon, 3/8"
502339 512256
Resistor: fixed, composition, 200,000 ohm at 5%, 1/2 w Resistor: fixed, composition, I 1R3
Clamp: cable, white nylon, 3/16"
502510
megohm ± 10%, 1/2 w. Same as
5XF2
Board: terminal, 46 terminals Board: terminal, 120 terminals Button: push, black Button: push, red
502410
502416
ohm ±5%, 1 w 1R9
208077
502156
ohm ±5%, 1/2 w
1R8
73553
512282
1R4
1R3
amp
@ 250 v, bat handle 5T1 to 5T9 Transformer: audio, input 5T10, 5T11 Transformer: audio, output 5T12, 5T13 Transformer: audio, output 5TI4 Transformer: audio, input Holder: fuse 5XF1,
73551
Resistor: fixed, composition, 100,000 ohm :1--10%, 1/2 w Resistor: fixed, composition, 1 megohm ± 10%, 1/2 w Resistor: fixed, composition, 560
1R2
Switch: toggle, DPDT, 3/6 amp @ 250/125 v, bat handle
mf
ohm ±5%, 1 w 94144
Switch: key lever, 2 "A", 6 "B" and 4 "E" type contacts, 2 way locking
5525 to
211012
Stock No,
Description
Symbol
210773
2C2
Capacitor: fixed, paper, 0.047 mf ±10%, 400 v Capacitor: fixed, mica, 39 mmf
2C3, 2C4
Capacitor: fixed, paper, 0.047 mf
2C5
Capacitor:
2C6
Capacitor: fixed, paper, 0.047 mf
2R1
Resistor: fixed, composition, 100,000
2R2
Resistor: fixed, composition, 1800
2R3
Resistor: fixed, composition, 150,000
2R4
Resistor: fixed, composition, 680,000
2C1
-S-10%, 500 v
39618
±10%, 400 v. Same as 20 electrolytic
20
73553
mf
-10 +50%, 450 v ± 10%, 400 v. Same as 2C1
ohm ± 10%, 1/2 w
ohm ±5%, I/2 w ohm ± 10%, IA w
73553
ohm ± 10%, 1/2 w
73553
99149 73553
502410 502218 502415
502468
26
Description
Stock No.
Resistor: fixed, composition, 2700 ohm ± 10%, 1/2 w
502227
Symbol 2R5
2R6, 2R7 2RB, 2R9 2R10 2R11 2R12
2XV1, 2XV2, 2XV3
3C1 3C2
Resistor: fixed, composition, 120,000 ohm -1.-5%, 1/2 w Resistor: fixed, composition, 470,000
ohm ± 5%, 1/2 w Resistor: fixed, composition, 390 ohm ± 5%, 1/2 w Resistor: fixed, composition, 10,000 ohm ± 10%, 1/2 w Resistor: fixed, composition, 18,000 ohm ±; 5%, 1/2 w
Socket: tube, 9 contact miniature
FIXED PADS 5AT17, SAT18 502412
RI, R2
Resistor: fixed, composition, 4700
R3
Resistor: fixed, composition, 620
ohm ±5%, 1 w Board: circuit, terminals
30498 502310 502318 209284
512247
ohm ±5%, 1 w
502447
MONITOR AMPLIFIER Capacitor: fixed, paper, 0.047 mf ± 10%, 400 v Capacitor: fixed, mica, 82 mmf ± 10%, 500 v
59488
etched,
r4C2A, B, C
mf -10 +50%, 450 v
4C8
Capacitor:
39626
4C9
Capacitor:
electrolytic,
3C5
39626
3C6
=1=10%, 500 v. Same as 3C5 Capacitor: electrolytic, 25
4CR1 4R1A, B
Rectifier: selenium Resistor: tapped,
3R2
Resistor: fixed, composition, 2200 ohm ±5%, 1/2 w
3R3
Resistor: fixed, composition, 220,000
3R4
Resistor: fixed, composition, 1 megohm ± 10%, 1/2 w Resistor: fixed, composition, 1500
3R5
3R6, 3R7
ohm ± 10%, 1/2 w Resistor: fixed, composition, 39,000 ohm ±5%, 1/2 w
3R8, 3R9
Resistor: fixed, composition, 470,000
ohm ± 10%, 1/2 w 3R10, 3R11 Resistor: fixed, composition, 430
ohm ±5%, 2 w 3R12
Resistor: fixed, composition, 6800 ohm ± 10%, 1/2 w
3R13
Resistor: fixed, composition, 22,000 ohm ±5%, 1/2 w
3XV1 3XV2, 3XV3
Socket: tube, 9 contact miniature Socket: tube, octal
Resistor: fixed, composition, 18,000 Resistor:
502422
4R5A, B, C, D
502510
4R6
502215
4R7A, B
Resistor:
502339
4R8
Resistor: fixed, composition, 120,000
502447
4R9
Resistor: variable, composition, 500
522143
4R 10
Resistor: fixed, composition, 10 ohm
4R11
Resistor: fixed, composition, 2200
4R12
Resistor: fixed, composition, 5600
4R13
Resistor: fixed, composition, 12,000
4R14
ohm ± 10%, 1 w Resistor: fixed, composition, 5600 ohm ± 10%, 1 w. Same as 4R12
4R15
Resistor: fixed, composition, 12,000
ohm ± 10%, 10 w
502268 502322 209284 207707
Resistor: fixed, composition, 18 ohm
Board: circuit, terminals
59486
etched,
with
6
211018
512412
ohm ± 10%, 1 w tapped,
512318
wire
wound,
1000/600/600/600 ohm ± 10%, 1.0/1.5/1.5/1.5 w Resistor: fixed, composition, 3900 ohm ± 10%, 1 w tapped,
wire
ohm ± 10%, 1 w. Same as 4R3 ohm 7.1-- 20%, 1/4 w
± 10%, 1 w
ohm ± 10%, 1 w
ohm ±10%, 1 w
4XV1 4XV2
ohm ± 10%, 1 w. Same as 4R13 Transformer: power Socket: tube, octal Socket: tube, 7 contact miniature Plate: mounting, electrolytic capacitor
211026 512239
wound,
10,000/1500 ohm ±10%, 6/4 w
4T1
211024 211025
ohm ± 10%, 1 w
502222
91391 211023
wound,
4R4
512127
±5%, 1 w
wire
Resistor: fixed, composition, 120,000
Resistor: fixed, composition, 270
ohm ±5%, 1 w
mf
4R3
FIXED PADS SAT15, SAT16 R1, R2 R3, R4 R5, R6
10
99656
electrolytic,
Resistor fixed, wire wound, 750
502410
211022
206108
100/3000 ohm ±10%, 7.6/5.4 w
99149
ohm ±10%, 1/2 w
mf
4R2
mf
-10 +50%, 450 v
500
-10 +50%, 450 v. Same as 4C7 52518
Resistor: fixed, composition, 100,000 ohm -±- 10%, 1/2 w
mf
-10 +250%, 50 v
mf
3R1
80
-10 +50%, 450 v Capacitor:
73787
91391
electrolytic,
4C10 iam
20
211022
-10 +50%, 450 v 73553
73553
electrolytic,
211018
Capacitor: fixed, paper, 0.47 mf Jr 10%, 200 v 4C4A, B, C Capacitor: electrolytic, 40/40/40 4C5A,B, C mf -10 +50%, 450 v. Same as -4C6A, B, C 4C1A, B, C 4C7 XL4--t Capacitor: electrolytic, 10 mf
±-10%, 400 v. Same as 3C1 Capacitor: fixed, mica, 82 mmf
Capacitor:
6
4C3
Capacitor: fixed, paper, 0.047 mf
3C7
with
POWER SUPPLY 4C1A, B, C Capacitor: electrolytic, 40/40/40
3C3, 3C4
-10 +250%, 25 v
Stock No.
Description
Symbol
211027 512412
206037 512010 512222 512256 512312
512256 512312 211028 68590 94925 18469
ON
ON ON
ON OFF
CH2
CH1
CH1
DUAL
CH1
DUAL
DUAL
CHI CHI CH1
CH2
CH2
CHI
CHI
STA
STA
STA
STA DUAL DUAL
CH1
CHI
CHI
CH2
CH2
CHI
ANB
STA
STA
CH1
CHI
CHI CHI CH1 CH1
CHI. CH2 CH2
STA
STA
STA
STA
STB
STB
TBB
TBB
TBA
TBA
TBREM
DUAL
SING
SING
DUAL
DUAL
STA
DUAL
CHI
CH2
STA
CHI
CH2
STB
DUAL
CHI
CHI
CHI
CHI
STA
STB
CH1
CH2
STA DUAL
DUAL
CHI
CH2
OFF
CHI
OFF
OFF
OFF
ON
ON
ON
ON
ON
ON
ON
ON
OFF
CHI
CH2
CH2
CH2
CH2
CH2
ON
CH2
CH2
CHI
CH2
C112
CHI
CHI
CH1
CHI
DUAL
CH1
CHI
STB
ON
DUAL
STB
ON
CH1
DUAL
CHI
CHI.
STA
CH2
DUAL
CHI
CH2
ON
STA
ON
DUAL
CHI
CH2
CHI
DUAL
CH1
CHI
OFF
OFF
ON
OFF
OFF
OFF
OFF
OFF
ON
ON
OFF
OFF
ON
ON
OFF
OFF
ON
ON
OFF
OFF OFF
ON
OFF
ON
OFF
OFF
OFF
OFF
ON
ON
ON
OFF
OFF
ON
ON
OFF
ON
ON
ON
OFF
ON
ON
ON
ON
ON
ON
ON
ON
ON
OFF OFF
ON
ON
ON
ON
ON
ON
OFF
OFF
ON
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF OFF
OFF
OFF
OFF
OFF
OFF
ON
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF OFF
OFF
OFF ON
OFF
OFF
OFF
ON
ON
ON
ON
OFF
OFF
OFF
ON
OFF
OFF
OFF
ON
OFF
OFF
OFF
ON
OFF
OFF OFF
-OFF
ON
OFF
OFF
'OFF OFF
OFF
OFF
OFF
ON
ON
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
ON
OFF
ON
ON
ON
ON
OFF
OFF
OFF
ON
OFF
OFF
OFF OFF
ON
OFF
ON
ON
ON
ON
OFF
OFF
OFF
OFF
OFF
ON
OFF
OFF
OFF
OFF
OFF
OFF
OFF
ON
OFF
OFF
OFF
ON
OFF
OFF
OFF
ON
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
ON
OFF
OFF
OFF
ON
OFF
OFF
OFF
ON
OFF
OFF
OFF
ON
OFF
OFF
OFF
OFF
OFF
OFF
ON
OFF
OFF
OFF
ON
OFF
OFF
OFF
ON
OFF
OFF
OFF
OFF
ON
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
ON
OFF
OFF
OFF
OFF
OFF
OFF
OFF OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF OFF
OFF
ON
OFF
OFF
OFF OFF
OFF
ON ON
OFF
OFF
OFF
OFF
OFF
OFF
OFF
ON
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
FFF
OFF
OFF
OFF
OFF
OFF
ON
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
CH2
ANB CHI CH2
OFF
CHI
OFF
CH2
STB
CH2
CHI
STA
Warning Lights CHI
ON
ON
ON
ANB"
CR
ON
ON
ON
STB
CH2
ON
OFF
ON ON
ON
OFF
ON
ON
CH2
CH2
CH1
ON
OFF
ON
OFF
ON
ON
CHI
CH1
CH1
CH2
STB
DUAL
DUAL
CH1
CHI
ANB
DUAL
DUAL
CHI
CH2
CR CH2
ON
ON
OFF
DUAL
CHI.
CH2
ON
ON
OFF
CH2
DUAL
ON
ON
OFF
CHI
DUAL
ON
STB
STA
CR
5524
5S23
5S22
5S I 8
CH1
5S13
CH1
5512
CH2
5511
CHI
5510
CR
5S9
CR
555
DUAL
534
CH1
553
CHI
552
Speakers
CR
5S I
Switch Positions
TWO -STUDIO SPEAKER AND WARNING LIGHT OPERATION
29-30 IA
AMP
R
571
cR
---o--1
ST Al
5SI !sort
5
13_01
L_
MIXER
ANN. B. 3i 0--o-i5 sT.A2
r --
It
OU CHI
5AT1
'MI 5523
E:It>
5AR2
cu 5510
ST B3 0-0--
573 10
553
5522 CAW BOOSTER AMP
5883
CO
IODB \',^ MASTER SAT1 4
5ARIO 5511
CH2 p344. AMP
5T10
>5A RI4
5 T. A 3 0-0
-0 -
5AT 3
PRE AMP
5T4
554
ST. 84
5512
-0 -
.
MIXER
T. 55 °--('-I17 19
ST AS
WE
21
23
0
Fi _NA i
P
TTI
C.
/-
576
---1
Ik
I SSE 0
isonlic
PRE AMP
:---
v
FILM 2
--I
MO
5712
TOR -AM-P6
15floCRCUE SPAR. 60
81
8 600_0_
PGm -TB MONITOR GAIN 5AT12
CUES
MON.
g.s1g
MAWR. SF <8
CUE 3
91
MON.
5Pa
5K
CUE
5K2
5ARI
MON
ST B SPAR.
O 5 515
r95270
.1.
CUE MON.
CUE
Ion
33 NET 0 NET PHONE
5528 o 97oANN.B SPAR.
PRE AM' SARK
5ATI 5
57
GItl
5516
REM.I0 Joon 600(1
1-0
MIXER
4.
5J I
ALL.
SATE
PRE AMP 5AR9
519
5ATIS
CUE
ICH2 CUE FEED
5519
MONITOR AMP. 5713
CUE FEED MON. SEL.
Ft1P2 0
5517
:OPTIONAL) 87
A
5 AT 13
GEC
600RI6001)
W120 DB
OFF
3008
49
IIEGOUE MIXER
5AT9
45Y
RELAYS
N 4
43
4T A SPAR.
93
4
-I CUE
T T2
05526
li
I
A .T -b- -
:
PRE AMP
517 )1r..
t-t-I 5. 0-4 5
SARE
I
- MIXER 557
170GRAM 8 Ter
1>_414> ,I
i
.>
5114
CUE I
5513
5AT5
MIXER
'
TAPE 2
>
-
L-
t
o
I 0-0
ST 5
555
r
PGNI TB MON 13005TER SARI2
CH2
5AR5
2
eixT MON.
3003
INPUT SEL.
CHI
5AT4
79w
EAT 18
PG M. MON.
TER
OLINE 2 OUT
7
60011 mc
of
518
- TB 63 Ht
PRE AMP
A
T BA
60011
5524
CH.2 LINE 2 OUT
6 DB
ChiTrISJII-MASTO-5A T 10
SARA
15Ctfd
15
S
CHI
60011
130
OLINE I OUT 73
CH2 ©U
11
ST. 54
7 7q4X.Ti. MON.
6000
5M2
5AT2
%ER
600 D
6 DB
SINGLE -DUAL CH. 1
MIXER
300E1
HCH2 LINE 1 OUT
lf:.'60011
L
908 WASTER 5ATii
1
1'150E1411
PRE AMP
58717
nev 10D8
CAP BOOS 5A 1
559
_PRE AMP
5T2
5181
tO 0
5ARI
ODD NUMBER AMPLIFIERS
oOFF
5Se
O
REMOTE INPUT SEL.
°2
OVERRIDE PHONE
EVEN NUMBER AMPLIFIERS
O
v1 5O V 441 o
REMOTE
39 lAl
TALK BACK
3
5521
o 20 2
it
In 4C
5F 2
REMOTE CUE
3
-o
-30
O --o 2
133691
POWER
OFF
ON -OFF
5529
MON. PHONE
5520 REMOTE CUE CH 21 PHONE SEL.
I Cal
5J2 O
100-130v 50-60,s.
Figure 22 Block Diagram
31-32
101+
REM TB
24V
5618C
ST.A
Te 5518A
3 2
-0-
41-%
STB8
4%
5518
eI
13
-
76
o0
O .7
n -r, 0.13
5522,
15°
of
30
a3
:6,
1
:9°
1
0
4
-J
eu
t 2o°
20
1220
I
I
210 U.
4
5
26.
250
FZ459
1.-
28,
1283
I
1Z'
t1
120
220_.
28
280
1
et
1.14
3 is' 324
----
12
22 13 19
5
21 -4 8
:
1
t
140
.,°4
5512 ,5
1
1160 I
IT
1
21 0o-
31,
6
-0- 23
26
1,r:
lea 19:
I 200I
F23:
1 2%
I
5524 25
S13
oq,
16
30.
20 12
:3
14
55H Is
Is
29*
N.
1o" 9
L:12139.
130I
14
I0
25
IQ
22
1
I°
13 I
5510
1260
r' 0
4
F N
:8°
24
2,
4
1 280
8
114
260 -
,t)
270
rt°
0 (0
:7;
23 24
1
te,
5523 5
5S521
I220
22,0
124°
24
1D
t
'29,
I
553 2.e.
40
22
90 1200 5S 4 2;
19C;
1
1
0
180
1
I
1
552
-0-5
IT
r -i7°, -13
II Y
rh-
N
)0 4
0
it
14
6
*-0- 20
-0- 9
17
*0-- 24 Miti1748 SPEAKER RELAY KIT 5
4 °5
I
4 4
3
5K2
SKI
2
5K3
ST. A
2?
ST.13
2
2
20
102a
820 I bk TERMPIALS ON 5T131 I
92
91
105
0
107
106
10B
119
0
120
9
9
9
1150 1160
1130 114
CONSOLETTE
-o
EXTERNAL
-O r -o -A
-0-
U
-0
-0-,
t-
I-117026 WARNING
LIGHT RELAYS
NOTE: STRAPPING ON 5782 SHOWN FOR TWO STUDIO OPERATION.
FOR SINGLE STUDIO OPERAT1ON;THE FOLLOWING TERMINALS ON 5762 ARE CONNECTED;
8-9, 12-19,13-20,14-1 5,16-17,21-22 823-24. CHI
CH 2
OR
OR PROGRAM
AUDITION
CH 2 OR PROGRAM ANNOUNC
CONTROL ROOM
15 V.
6 0,,AC
BOOTH
CHI
CHI 1
CH 2
OR
OR AUDITION
PROGRAM
AUDITION
OR
CHI O
AUDITION
CH 0
PROG AM
414---MI-11706 SERIES WARNING LIGHTS
133806-0
Figure
23-Control Circuits
552
555
ISO
LINE
O
LINE 5
ri4Z LINE4
8390
WO
356r2
31L
LINE 5
LINE 2 LINE 3 LINE 4
OFF LINE 1
SW.
0
4]00
SELECT
INPUT
REM.
v
f50NC
NET
C
30DB
270
5
270
09...
0
30 DB
FILM
TAPE 2
557
422
270
SATIN
270
270
660
270
SATIN
Witt
I IMMO
TAPE 2
PIL612 30
a
27
26
25 TT
24F1.1_
23
TAPE I 22
150
565
200
5T.A5
190
IN
170 57.85
6
.
554
511C.4
150
150 5T. A4
12
5T. A
HO
M 1 C.1
150
SR2
STA2
AN B
M
ST. Al
2
351
VICO
,50R091,
TAO,-
78
100K MIX7
5077
1,1106
100K
5AT6
03
0
011
70
k19,
26
5
IT
29
16
1
22 2 13-121 0 0 0-0 0-0 22 22 21 20 18
2 2-2
SINGLE STUDIO OPERATION
11
70
5
5282 STRAPPED FOR
6
6
5421
PREAMPLIFIERS
5426.
08 07 06
t
ST1
I.
Owl
LINE S
LINE 3 LINE
LINE 2
LINE 1
OF CNAN 1 CHAN 2
PHONE
3
OFF
2,.
CUE-?A
5520 4,7211 REMOTE
5515
1":0)1111111111 11111111.1
N PRIM lllll 11
A
'
Z. MASTER
STRAPPED AS SHOWN IN MAIN SCHEMATIC FOR TWO
TO PERMIT 7ALKISACK 70 ETUDIDS WITH OUTPUT OPERATION.FYI POSITICE.1, .1. ITIPLIY LINE SNITCHES I
1/R49 IF A CON0Fr 1 RN CUL 511 AKLK 15 CONNECTED TO TERMINALS KU 90. REMO, t
PO%
--:70706
CUE FELD MON ...AIN
OPP
INPUT SELECTOR
CUE FEED MONITOR
5P51100 -120V 50/6001 200E
50T12
P561 -1191.30N BOOSTER
I.
0
55
4700
418
LUT,.',IT'U'R' POWER SUP
Y
NAME PRE-AmPUF1 R5 BOOSTER AA
1500
510 ix
5249
41
Vu
5M,
'7'5: 1 616 098
'S'AR2'1'5:5'4A2'1'64
511.511151152
476 069 5ARIOT05ARI2 INC. 476 967
DWG, REF.
3073AG
2008
SARI TOSAIR9INCL
SYMBOL
REL., ED SCHEMATICS
A
100
2000.3
5247
70
59.
5600
5234
250
5512
90 560
65
DAME
5T11
2 HP/ C2
R16
B. moN
MON.
562
CUE FE
1661
Immier.91111-11. i
1
-nrem ..- .
69
27K 5%
5245
55E.
11MIMIIINIM, iumiaa-=-. 1:
ROTARY SWITCHES ARE 571005 IN mAX.C.C.P051710N. 9; DECK 15 NEAREST PANEL . CONSOLETTE 15 WIRED AT FACTOR-, WITH 15712.
TERMINALS S-20 AND 6-7 ON s
mASTER GAIN
50E14
15351.-iffamm- :
If NOT OTHERWISE 0[516NKTED: INDICATE TERMINALS ON 51,11. NUMBERED SQUARES INDICATE TERMINALS 0551152, LIMBERED CIRCLET
STUDIO
5P131
SPOO
7 'r
5229
..............1-0-
.---.,
ALL RESISTORS ARE IN OHMS ',12.W, 107.15 ALL CAPACITORS IN MICRO FARADS UNLESS OTHERWISE SPECIFIED.
WAY
5513
1
11:111111
INN111111
T,III
1111111
I I II I
EIHMIL.
VIII
lgiNOLE1POEITION
SINULE-DUAL CHA IA THOWN IN CCE
8
ER AMP.
5522
HALTER
1,1,1 cm-
CHI 8005
P.
CHANNEL I
4
1
PRE FIR
COMPONENT
53 54 CUE,
Ogg 025
559.6
CH1
Wg
'fia
5271 4700
CUED
CUE 2
A
CR2
Sr,
5R67
5%2 57A
5 NE
55 56
5J.
MON PHONE
,Ai;gV°
MON
5526
-'CUE
-11,3
5925
t5133. LINE 1
1
095
MOz
91
Ei 96
5TB
EI 95
094
57.0
"
090
CR CUE
089
SPEAKERS
CHI
AN
116
TB
C
112
110
07,
106
05
80
IH
76
78
73
0
WWI
13
17
V
3
2_1
z7770'?,,y/TITc7f1.974IsifirlINI"-07L?r
737
4. -Visa Lis
712
9:7
v
Ise
1160
-71: T-47 5
76,
744
V756
N5
Na
7611
794
770
area
_Ili
7/
69
7
TY
,--36541134-2
riot 54%2 ova 5P.51
_
1499
252-606
41,,
'
14
771
774
775
,et
t3
3.:tali 111 _9 I 30.
I
g
I
,I33
776
oo 00
5893 roR 4616
1.471
4C4 1616
.e., -,N,
,./
c. '. /
% .'
454-3811.10--576i-1
114470".16 4"^\
00
,..4 -
571 11071-5
t.. I N.._,/
Mi-6
00 00
:
i` "1.
5369-6
.11-4756711-2
396
era
I. Cl1- 4C6
ucelij4..262 -241962 240-1061.1 'Li itil
02
1
,1.452
f\
1
2
3
§
.777
*ND]
Ina
167
154
.1,
I
I
I
-4
_
f! 1'13! It
,
3356;2,
2399 5
2-4711/r-s
4,!7,,,,
.
5,3-2
"
5960
..,
4916
'
OP
55..e-, ;;* 402
,3 Win
2- 4691
_.
Rritttlf,
cur..
_122. J
.
1;51=a00
,
,
. .
-
i891-1...- as
--6 V
,
...7h
ir* ,
we.E.,
,,,,,,,
.-3111660-6 '6,45,
r:IittZftio
V1 .
i
.
III .PHINNINLI mikaim
MI:XIIIIIIIIIIIII m= ii=liiiiii if it4fi Mill MIZiliznillii/MilliMMIIIMIL.4..7..1.r4,12FrIMINI .. .
MC
1.112.1
MINI VnII:FM1=1*-111
[am= wdgm KUM MN MIMI= NMI M=111 MI= ,3.mmtim11111111111=8
-19,47-1.71ETTL -
_
-
.
WPM
. .
I.' 1:11F=In
I"
1=L7.111
li
.
,1, 14161IIi4 MN
11.11-1 ,
316 -57 2-4
112.
MIliCEINO OMNI
. IIILK!.1111 =MI AS --M1 zfrrimmi Mil IIMINalmil NMI= CTSSSiliibllli MM Mir --.7 7. f, IZI-T47 go. ff..IENT-WI MIMI ION INNS MELIMI /, . LV MIMI= NM MEM fiqm ir. IMV-FM=i TEL/ -OMB ENE ultimo r 17 -Vila m
-
-4A
Mk= IiitIM ______LIEDISIEM Mt 11 K -.t_M
FA:11211MIN
11-', XCE,IIM MI 11 t ,4
.
e
MUNN REMMI
.1 .0 94,17211ElaWRIII
.
177151117.
EnIEF2. VAINE
0::_i711_,.,,"\-77.6; :::' .:a: si41.:"
0
1.11.1=151111111ii7. 171111,14.1.1ZEMIEll
11115177= wynimrtli=
2-496
2-40
°MR 0910,3'
0:. CELT= bon a. 41,..5,117111111L,V-41,MImElliiiiii IN KIM
37TrIF9'7-118=
211L22;4,17,.t...
SEE NOTE]
SEE NOTE76
8,17-46 IMEntnnga ®WI
E:
2
Mr
I T1.174/74f.i0ar "5
900
gtR
52-0901 262.9
- %it
7
97
63
2
!itiiiu'0§,ildittifilliiit;'?-Q,iittlalliii0i0t10 --750
69Q721
66
45
41
in
NM
OX.1151,11111101
sssssi
Nar_t_rir
swan6866 lErS,M
11. MAC= 1M IMM111111114.11151.14INM =MI MENNE BMW t, 1581,1MIMMQ,1:11581VD11111 MN 17 I1: ,I=ITIM MiZILLia.M11,1.EMa.-IDIN 517cr7 Kum Er. M11-716.M.M.,,3161.11.1Li-1,7;1.11116 akvir_T--a wrxm j:I763. FM1.1.4.0--W'MAMILMIlin RUIZZE MEM
i
21- 1:2q2[225 fl1
l A7 .II:k1MIE.a1111.117174[4r2ol .. 4 AMMON COMEIIIIELM V' l',3=F:L i'.til KO= P11:15.1.1
FkifILM NUL= FFISMMTV
rOtt LIST OP PARTS FOR ABOVE WIRE TABLE SEC D90-8911333- 501. 440TCS '
532-1
56E6
63 591-
5,663 -
290
5183
202 203. 15-656- 4-"''
201
5,52-4
.
572
714
7
3.!.
9-5341
I
01313-5
204 205
.vr3,-936D
i
6 01
0
en:
.53.4
6
1131NO LACING CORD iTEm148 3 SOLDER ALL THE ENDS OF TIC SHIELDS CF TIE SHIELDED CABLES ON 97211 TO GROUND EL/S.sOND 2,
576-6
206 207
-0.5544-
5F555-
5155
R -555-I
1- SOLDER ALL ELECTRICAL CONNECTIONS 43996 172744137 2 -CABLE &THEN LACE WIRES WHERE NECESSARY
;
4 -TWIST IN PAIRS THE FOLLOWINO WIRES 270 271 272 275 274 273 276 833 345 306 567 366 366
o SEE NOTE)
260, 281, 262,283, 284 216,266, 547j 392,393, 594,395 096, 366 369 570 473 499 500 560 573 601 617 649 397, 396 399 s 400, 639, 6 I5,600, E46, 564 ,624,671,665
367
7.7
ALSO, TWi ST THE FOLLOWINO
240 241 260 260 262 9 264 . 5. TAPE SHIELDED CAIN..? .4351312-4
Ii
454-6395
&AT
.340- 476:16
--6511-3099-2
'464
6911-53145,.
696-5063- 5
5T86
699 - 3366-5
CH-i BUS
71,
6 - iL ACE ONE PIECE OF 111.0114 ON EACH END OF 17E142144 EXCEPT THOSE ENDS WIRED TO
879-..-6569-5
1-7-9 70051;11 -.
wtiERE VECESSART.
TO PREVENT 311ORTS.U3E ITEN3140
ye Hare;
322-eato 6
2
`5163-6065
1 -5363
-696-5392-5..
"1.211-612,6
--330-131)
.-334090 a
*ND 6
.-440162.
30
TER61.130RD 51131
7- PLACE ONE RIECE OF /71614 I 5 ON EACH END 59511
Or 17E613145 EXCEPT THOSE ENDS WIRED TO TERM. BOARD 1.7131.
5787
5Z9 90:
-93-552-13-
3
662-5311.19536 55245 '704-5511-
904-5511'.9..
3-11411645 -11
39-355
No
5=5
663 N154
554-1551 135-65114
6951:11:1'3-
15
564-354
-I
31
-9p-1
.105
51
9-551. 440-555
3631
571-
''`,.,
'
as r
402,551-22-. 5.3510 S.-
460 -5.311-14.
39'457017.
-435-15117-
435-551045,
492- 551911.
551.551-25,
531- 33425. 526 5511-7, 54- 954 27, .2110---5110-551157.
49045924
-
24
-554 It: 260-_!67.359-7...
52i-5510-7
270---612 55247-, 26,-661559-21-.
-s*
,,754.14
f
373- 3511:15.-
374-551044..
-635-557-27 260 -566- 551041,
..- 669
557
, -7
576.6 -4312
':
406-5512.1
7
536
349. 5139 576-55191
131
I- a
'
1
'
.
96
.
,
IS MAN
,
e
.5
-,
7-656643. 455-55116-7
II
.
465
83
'
'
3 no -
re
7.5156:. 35: 55163 -::7:::
=506-151464-:
-636-568366 556"
mc Oft -555-27-,
250-562.5319-21.,
6R
-559- 3782-04
ill. ,.
iii
"S31-.555321'5111
07
2
-9519
343._ .6.. .; b6SST
al
.4744.570246
I
I
S5 A:5
...;:
22
70272 3-131
617-65..waz-
5782 40
La
612- 61131107r 106! 5325-36-'
3
to 71,2
3
3#11.5.: 53250.. *22<- trel 5
5521
tit -49141t? --i4C.-13 -g I * 971- tit=tiirrM ag P42 --s :°,::-r.Nr:-. . & it 712C.5c-5
r
467 -55200-9
.
.._....,....,,,=2-* .
1 02-.L. 364 -518 1-2 6137
'5 015-9
..Ne.3457
0.-3110450-79.
r
jimitt.-'_.:17,-4-77.9 14r 93.13052...5"... 13-9762-4-0,,
84
65 -3
4
.
;...t"
:11a
YA
3
; a3
3,36
"'"
533-33612 66226--51
276.3671:0-5744-651.27CD-Ar OL6264256521.
9.
.0 5520.:
05445.359.5- W... -;....70V52 0-60 '-'549-5511593-/ 023 016
024
360063-I
6399
Floor. 25 -Overall Connections
