Transcript
SH-002500-00 1 L
+15 V
3
-15 V
4
-24 V
1N4004
+24 V UNREG
D 942
1N4004
+15 V REG
D 941
1N4004
-15 V REG
C 954
D 947
1N4004
-24 V UNREG
100 25 V
D 940 1N4746, 18V
2200 35V
C 953
D 939 1N4746, 18V
C 946
U 904
7815
3
D 937 1N4004
1
LG
9-13-91
RDS
9-13-91
S.G.M.
D
REVISED PER ECO 1262
LG
10-9-91
S.G.M.
E
REVISED PER ECO 1290
PHQ
11-6-91
S.G.M.
F
REVISED PER ECO 1367, R 987-THERMAL
PHQ
1-27-92
S.G.M.
G
REVISED PER ECO 1462, R996, R991, U903
10-14-92
S.G.M.
H
REVISED PER ECO 1692, R989 WR
12-15-92
S.G.M.
J
REVISED PER ECO 1724, R989
LG
1-29-93
S.G.M.
J 901
K
REVISED PER ECO 2009, R987
LG
9-23-93
S.G.M.
10
L
REVISED PER ECO 2259, R997 AC
18 Vac
2
2
CT
3
D 936 1N4004 C 941 10-25V
100 25 V
R 982 470-1W
2200 35V
3
2 1
U 905
4
XF PTC
5
XF PTC
N.C.
7915 J 902 1
GND
4
-24 V
MUTING INPUT CAP.
HIGH RAIL
+120 V RAIL
T9
IC-000008-00
C 943 47-35V C 944 47-35V
THERMAL
GROUND
RELAY
MUTING BUS
MUTE -24V
MUTE +8V
RUN +15V
RUN 0V
T4
REF VOLT
R 907
T1
LOW RAIL
SHUTDOWN
T2
T3
SLEW
NEG SUPP
T4
T5
THERMALLY
G
Q 904 R 910 2.7-2W
BOOTSTRAP CAP
TO Q 911 THERM ADJUST, 0.5-8.5V
+60 V RAIL THERMAL SENSE, 0-8V
PROCESSING BUFFER
T7
90C +8V SPEAKER BUS
THERMAL BUS, 0-8V
T9
THERMAL HIGH FREQ
DC PROTECT SENSE
T10 R 994
VR 901 100
TO MUTING
DC RECTIFIER
R 931
CLIP RECTIFIER-BUFFER OP-AMP OUT
LIMITING THRESHOLD +4.5V
OPTOCELL
0-3Vac NORMAL AUDIO 4.5-6.5Vac CLIPPING PEAKS
T12
BIAS
50 OHM 25 C
THERMAL LIMITING
T11
10K-2W
U 902-B
8
REFERENCE
D 903 1N4004 A
C 960 470-10V
R 995 2.7K
C 955 .0022
T15
R 944 750K
B
RN 910 1K-4
C 961 .0033
R 948 332
-15 V
T16
Q 905
R 925
R 928
R 926
R 930
Q 906
Q 907
Q 908
Q 909
Q 910
Q 933 2SC3298B
R 945 1K
D 923 1N4148
D 922 1N4148
D
+15 V
J 905-1 TO -15 V
R 943 750K
SWITCHING THRESHOLD -15 V
BIAS NETWORK
D 921 1N5955A 180 V
R 924
A
D 904 1N4004
R 1000 10K-2W
12000-63V 1
2 PL
D 907 1N5402
CENTER TAP
2uH 8
R 937 4.7-1W
R 933
AUDIO OUTPUT STAGE
Q 911
C 912 .10
Q 912
Q 913
R 949
R 950
Q 914
Q 915
NEGATIVE BIAS
J 905-8
R 952
R 951
R 936
C 913 .10
2
R 953
SPEAKER COMMON
5
Q 916
R 954 .22-3W 6 PL
C 935 C 936
R 976
12000-63V
3K-2W
2 PL
-60 -120 V SWITCHED BUS
NEGATIVE TRIMMER
R 935
10-2W 4 PL
R 932 3.9-2W
D 908 IN5402 R 955 22-1W
CONTROLLER
R 934
2SC3281 6PL
Q 934 2SA1306B
D 924 1N5955A 180 V
11
GROUND
R 939 4.7 FP
SPEAKER OUTPUT
HEATSINK
T19 VR 903 5K +CURR LIM
TRANSFORMER
3
L 901
NEGATIVE BYPASS, -7.5V NORMAL, -2.5V SHORT
NEGATIVE CURRENT FEEDBACK, -3V PEAK
C 929 C 930
2SA1302 6 PL
R 938 4.7-1W
R 946 1K
T17 T18
R 929 .22-3W 6 PL
7 4
CLIP BUS
TO +15 V
R 947 332
C
T14
11
2
R1001 15K
T13 CLIP
3
1
+15 V
6
C 911 .01
U 902-A 5532
C 956 680p
5
IDLE -1.2V CLIP +3V PEAKS MUTE +4.5V
4
R 927 22-1W
SHUTDOWN DETECTORS
OP-AMP OUT - HF PROTECT
27K
+60 +120 V SWITCHED BUS
J 905-6
J 905-3
T8 C 952 220-16NP
D 902 MUR1510
R 917 22K-1W
50C +O.5V
THERMAL SENSING
R 996
C 902 .10
D 951 7.5V
T6
8
2 PL
Q 903
S
T6
C 904 47-50V
CONNECTED
TO +15V
THERMAL
22 FP
PTC-60C BH-100
T5
R 989 60.4K
12000-63V
D
GATE DRIVER
R 1007
DRIVER
C 931 C 932
S
LOSS-OF-SAT
T7
MUTE BUS
R 987 330K
G
SOURCE REF
RELAY
10
RELAY DR
2
TIMING CAP.
T3
MUTE
3
SHUTDOWN MUTING T2
22 FP
T8 SHUTDOWN
IC-000010-00
7
D
R 906
GATE
U 910
ON-OFF MUTING DELAY
SGM
D 901 JUMPER
U 907 SCHMITT COMPARATOR
T1
S.G.M.
REVISED PER ECO 1219
B 901
C 945
2
S.G.M.
18 Vac
1
D 938
G.F. 6-10-91
REVISED PER ECO 1194
J 904
1
3-25-91
C
REV G, 10-14-92, FOR PC-004200-00 REV E J 903
PROD RELEASE PER ECO 1040 GLF PER ECO 1095 GLF
C1
SCHEMATIC, AMPLIFIER CHANNEL, EX 2500
+24 V
A B
6 OUTPUT VOLTAGE FEEDBACK
LOAD IMPEDANCE
T20
BIAS ENABLE
SENSING
-60 V RAIL
D 965 7.5V
D 905 MUR1510
R 956 3K-2W
POS CURRENT TRIMMER
R 958 2.7-2W
T21
VR 902 5K -CURR LIM
POSITIVE CURRENT FEEDBACK
POSITIVE BIAS
+3V PEAK
T22
T1
POSITIVE BYPASS, +7.5V NORMAL, +2.5V SHORT
REF VOLT
5 12
D
SLEW
R 959
T5
22 FP G
S
D
R 960
GATE POSITIVE DRIVER, +0.6V IDLE
T6 SCHMITT
G
S
C 924
T7
IC-000009-00
-120 V RAIL
Q 918
12000-63V
470-10V
SOURCE REF
U 908
Q 917
C 937 C 938
GATE DRIVER SHUTDOWN
A
22 FP
LOSS-OF-SAT
COMPARATOR
6
GND
T4 SHUTDOWN
T24 T25
GND
T3 LOW RAIL
NEGATIVE DRIVER, -0.6V IDLE
C 959 470-10V GND
T2
GATE PWR
T23 J 905-2
C 917 .10
CONTROLLER
2 PL D 906 JUMPER
9
R 988 8.2K-2W SPKR SIG
SPEAKER BUS 13
C 914 R 992 470-1W
C 951 47-16NP
18p
N.C.
A
SCHEDULE OF TEST POINTS A R 990 1.40K
R 993 412
C 916 .10
J 905-1
THRU
J 905-8
J 905-1 NEGATIVE LIMITING VOLTAGE
R 942 75K
J 905-2 POSITIVE LIMITING VOLTAGE
NOTES.
J 905-3 SWITCHING THRESHOLD REFERENCE VOLTAGE RN 909 10K-4
HEAVY LINE SHOWS MAIN SIGNAL PATH
A
14
R 997 1K U 901-B
AUDIO INPUT STAGE
5
9
R 923 47K-1W 7
TO +60 V RAIL
1
D 952 1N4735 6.2 V
R 991
4
C
C 962 15 p
PART NUMBERING SCHEDULE FOR PCBS USED IN EX-2500: PCB NUMBER
D 954 1N4148
-15 V
D
PWR-ON
C 915 .0022
590
A GND REF
2
7
5532 6
3
3. BRIDGE RECTIFIER B 901, 1.5A, 200V. 4. R 1007 IS POSITIVE TEMPERATURE COEFFICIENT RESISTOR MOUNTED TO HEAT SINK.
J 905-4 U 901-A
TOLERANCE 20% FOR ELECTROLYTIC TYPES, 10% ON OTHER TYPES.
J 905-8 SWITCHED NEG AMPLIFIER RAIL--HIGH VOLTAGE
R 941 47
+15 V 8
2. ALL CAPACITORS 100V UNLESS NOTED.
J 905-6 SWITCHED POS AMPLIFIER RAIL--HIGH VOLTAGE A
U 903 VTL 5C4
1. ALL RESISTORS 1/4-WATT, 5% UNLESS NOTED.
J 905-4 AMPLIFIER LOOP OPAMP OUTPUT B
+INPUT
12
R 940 21.5K-.5W
D 953 1N4148
DESCRIPTION
AUDIO PRODUCTS, INC.
RESISTANCE 100 OHM COLD, RISING AT 55 C. QSC P/N RE-000006-PT
COSTA MESA, CALIFORNIA
5. Q 903-904, 917-918 ARE SWITCHING FETS. QSC P/N QD-000030-QD,
CH 1 PARTS CH 2 PARTS PARTS IN COMMON
150 W, 100 V MINIMUM, ON-RESISTANCE 0.075 OHMS MAX.
PC-004001-00
DISPLAY PCB
101-199
201-299
1-29
PC-004002-00
INPUT PCB
301-399
401-499
31-49
6. ZENERS D 951, 965 MARKED 7.5 V TESTED FOR LOW LEAKAGE, QSC P/N QD-0007.5-ZT.
PC-004003-00
AC PCB
501-599
601-699
51-69
7. ZENERS D 952, 955, 6.2V-500mW, TESTED FOR LOW LEAKAGE, QSC P/N QD-000024-QD.
PC-004004-00
SPKR PCB
701-799
801-899
71-99
8. PARTS MARKED WITH TRIANGLE
PC-004200-00
AMP CHANNEL
901-UP (SAME BOARD FOR CH 1, CH2)
SCHEMATIC AMPLIFIER
MUST BE REPLACED WITH EXACT TYPE ONLY.
9. PARTS ENCLOSED WITHIN DOTTED OUTLINE
PHQ
3-20-91
PHQ
3-22-91
CHANNEL, EX 2500B
HAVE VOLTAGES GREATER THAN 42V.
D 955 1N4735 6.2 V
SH-002500-00 L
C 957 68 p
SH2500K1.FCD
0.875
SH2500L1.FCD
1
1
4
2
3
1 REVISIONS
THIS DOCUMENT CONTAINS PROPRIETARY INFORMATION WHICH IS THE PROPERTY
ZONE
REV
OF QSC AUDIO PRODUCTS , THAT MAY NOT BE DISCLOSED, REPRODUCED OR USED
A
APPROVED
DATE
DESCRIPTION
PROD RELEASE PER ECO 2297 WR
WITHOUT EXPRESS WRITTEN CONSENT FROM QSC AUDIO PRODUCTS.
D
D
C
C
B
B
TAB BLOCK DASH NO.
DESCRIPTION
USED ON
-00
CHAN 1 & 2
MPA1100, MPX1200, EX 4000
-01
CHAN 1
MPA750, EX 2500
-02
CHAN 2
MPA750, EX 2500
PARTS LIST CONTRACT NO.
UNLESS OTHERWISE SPECIFIED
AUDIO PRODUCTS, INC.
DIMENSIONS ARE IN INCHES.
A
DIMENSIONS PER ANSI Y14.5-1982
DECIMALS
ANGLES
DECIMALS
APPROVALS
O
.XX
-+ .02
.XXX
-+ .010
DATE
-+ 1/2
SCHEMATIC, BRIDGE RECTIFIER PCB
DRAWN DEBURR EDGES .XXX R MAX
Warren R.
5-13-94
MATERIAL CHECKED
X
NOTES: UNLESS OTHERWISE SPECIFIED
X
NEXT ASSY
ISSUED
FINISH
USED ON CAD SEED FILE NO.
APPLICATION
4
3
A
COSTA MESA, CALIFORNIA
TOLERANCES ARE:
DO NOT SCALE DRAWING
2
SIZE
FSCM NO.
DWG NO.
C SCALE
REV
SH-000040-XX NONE
CAD FILE NO.
SH0040A1.FCD
1
SHEET
1 OF 1
A
4
2
3
1 REVISIONS
THIS DOCUMENT CONTAINS PROPRIETARY INFORMATION WHICH IS THE PROPERTY
ZONE
REV
OF QSC AUDIO PRODUCTS , THAT MAY NOT BE DISCLOSED, REPRODUCED OR USED
A
APPROVED
DATE
DESCRIPTION
PROD REL PER ECO 756
WITHOUT EXPRESS WRITTEN CONSENT FROM
B
QSC AUDIO PRODUCTS.
CHANGE VALUE R31, WAS 21 K
6-10-91
SGM
SEE ECO 1097
C
REVISED FOR MIN-SLOT, BR-SW SEE ECO 1297
D
D PADS FOR LEVEL 1-A OR 2-A ACCESSORY PCB
SCHEMATIC, EX-SERIES STANDARD INPUT BOARD. W 301 C 302 470 p
2
470 p
1 (1)
4 (5)
3 (4)
6 (8)
J 33
A
INPUTS PARALLEL
CH 2 -IN
2
-INPUT CH 1
22
CH 1 CLIP-LIM
12
-15 V REG
10
-24 V
9
+24 V
21
CH 2 CLIP-LIM
8
GND
7
GND
3
-INPUT CH 2
5
+INPUT CH 2
14
GND
13
GND
15
CH 2 SPKR SIG
18
CH 1 MUTE
17
CH 2 MUTE
20
CH 1 PWR-ON
19
CH 2 PWR-ON
24
CH 1 THERMAL
23
CH 2 THERMAL
26
CH 1 AC RELAY
25
CH 2 AC RELAY
PIN 10 V-A
A
MONO-BRIDGE CENTER STEREO
SW 31 3-POS
KEY
C 31 220p
PIN 11 V- B PIN 12 CLIP B
W 401 NC
CH 2 +IN
(6, 7)
W 404
1 SHIPPED XLR PIN 2 HI
W 406
R 401
T 401
W 403
A
+INPUT CH 1
PIN 9 CLIP
R 32 24K
CH 1 -IN
3
1
PIN 8 GND
NC R 31 20.0 K
2
GND
PIN 7 -OUT A
POSITION FOR PIN 3 HI
J 401 XLR
GND
6
PIN 6 -IN A
W 306
CH 1 +IN
GND
CH 1 SPKR SIG
4
PIN 5 +OUT A
W 302
MOVE W 303, 304 TO ALT
J 31
A
W 305
A C 303
SHIPPED XLR PIN 2 HI
A
D
LG.
REVISE PER ECO 1916
(6, 7)
1
C
PIN 4 +1N A
R 301
T 301
W 303
3
+15 V REG
16 PIN 3 GND
W 304
J 301 XLR
11 PIN 2 SP-A
C 301
SGM
J 32
PIN 1 V+A
FOR PC-004005-00 REV B 7-15-93
1-24-92
BY PHQ
C 402
C 401
470 p
470 p
3 (4)
6 (8)
1 (1)
4 (5)
PIN 13 GND
PIN 14 -0UT B
PIN 15 -IN B
A
PIN 16 +OUT B
W 405 C 403
PIN 17 +IN B PIN 18 GND
MOVE W 303, 304 TO ALT
A
W 402
POSITION FOR PIN 3 HI
C
PIN 19 SP-B PIN 20 V+B PIN 21 SPARE PIN 22 SPARE
B
B
NOTES, ALL REV LEVELS 1. ALL RESISTORS 1/4W, 5%. 2. ALL CAPACITORS 100V 3. J 32, 26-PIN CONNECTOR, TO J 1 ON FRONT DISPLAY BOARD PC-004001-00. 4. PARTS FOR CH 1 NUMBERED 301-399. 5. PARTS FOR CH 2 NUMBERED 401-499. 6. PARTS IN COMMON TO BOTH CHANNELS NUMBERED 31-49.
PARTS LIST
7. BOARD SHIPPED WITH W 301-304, W 401-404 MOUNTED AS SHOWN.
A
CONTRACT NO.
UNLESS OTHERWISE SPECIFIED
8. PARTS WITHIN DOTTED OUTLINE FOR USER MODIFICATION. SEE MANUAL.
AUDIO PRODUCTS, INC.
DIMENSIONS ARE IN INCHES. DIMENSIONS PER ANSI Y14.5-1982
NOTES, REV LEVELS A-B
DECIMALS
ANGLES
DECIMALS
1. THE FIRST YEAR OF PRODUCTION EX AMPLIFIERS SHIPPED WITH PC-004002-00 REV A OR B
APPROVALS
O
.XX
2. FOR PC-004005-00 REV A, ADDED PADS 1-20 FOR LEVEL 1-A, 2-A INPUT ACCESSORY PCB
-+
.XXX
-+
SCHEMATIC DIAGRAM EX SERIES STANDARD, INPUT BOARD
DATE
-+ DRAWN
3. ADDED J33, 5-PIN INPUT EXTENDER HEADER AND W305,306,405 & 406.
DEBURR EDGES .XXX R MAX
4. NO CHANGE IN PINOUT OF J32, PINS 1-26
MATERIAL
PAT QUILTER
6-18-90
CHECKED
5. SW-31 WAS REVISED ON PC-004005-00 REV A, BUT WILL NOT AFFECT FUNCTION OF UPPER SLOT PCB.
PC-004005-00
NOTES: UNLESS OTHERWISE SPECIFIED
EX/MPA SERIES
NEXT ASSY
ISSUED
FINISH
USED ON CAD SEED FILE NO.
APPLICATION
4
3
A
COSTA MESA, CALIFORNIA
TOLERANCES ARE:
DO NOT SCALE DRAWING
2
SH40002C1.FCD
SIZE
FSCM NO.
DWG NO.
C SCALE
REV
SH-004002-00 NONE
CAD FILE NO.
SH4002D1.FCD
1
SHEET
D 1 OF 1
4
2
3
1 REVISIONS
THIS DOCUMENT CONTAINS PROPRIETARY INFORMATION WHICH IS THE PROPERTY
ZONE
REV
OF QSC AUDIO PRODUCTS , THAT MAY NOT BE DISCLOSED, REPRODUCED OR USED
APPROVED
DATE
DESCRIPTION
LG.
A
PROD RELEASE PER ECO 1846
B
REVISED PER ECO 2201 (EFF 8-5-94)
C
REV PER ECO 2699 (EFF. 8-18-95)
5-18-93
SGM
6-15-94
SGM
WITHOUT EXPRESS WRITTEN CONSENT FROM QSC AUDIO PRODUCTS.
D
D SCHEMATIC FOR PC-004003-00 REV B
PC TERMS FUSE F501
SWITCHED AC
R 501
501
506 SEE TAB BLK
508
SEE TAB BLK
507 504 505
50
C 501
509
51
.068 250 VAC
502
52
503
TABULATION BLOCK
C
MODEL (V)
FUSE
MX 2000a (100V)
15A 250V
330 15W
1.0 OHM COLD 30A
MX 2000a (120V)
15A 250V
330 15W
1.0 OHM COLD 30A
MX 2000a (230V)
12A 250V
470 15W
2.5 OHM 15A
EX 2500 (100V)
20A 250V
1.0 OHM COLD 30A
EX 2500 (120V)
20A 250V
1.0 OHM COLD 30A
EX 2500 (230V)
12A 250V
2.5 OHM 15A
58
EX 4000 (100V)
20A 250V
1.0 OHM COLD 30A
59
EX 4000 (120V)
20A 250V
1.0 OHM COLD 30A
AC LO
53
57
54 R 50
55
SEE TAB BLK
56 60
R 50
C
R 501 / R 601
602 C 601 .068 250 VAC
603
B
B
604
SWITCHED AC
R 601
605
FUSE F601
601
606 SEE TAB BLK
SEE TAB BLK
607
PARTS LIST CONTRACT NO.
UNLESS OTHERWISE SPECIFIED
AUDIO PRODUCTS, INC.
DIMENSIONS ARE IN INCHES.
A
DIMENSIONS PER ANSI Y14.5-1982
DECIMALS
ANGLES
DECIMALS
APPROVALS
O
.XX
-+
.XXX
-+
DATE
-+
SCHEMATIC, AC PCB EX/MXa 3 SP
DRAWN DEBURR EDGES .XXX R MAX
1. THIS DRAWING USED IN CONJUNCTION WITH SCHEMATIC DIAGRAMS :
LEORA
5-10-93
SGM
5-17-93
MATERIAL
SH-004000-00, SH-004001-00, SH-004002-00, SH-004003-00, SH-004004-00,
CHECKED
SH-004006-00, SH-002500-00, SH-002010-00, AND SH-002011-00
PC-004003-00
NOTES: UNLESS OTHERWISE SPECIFIED
NEXT ASSY
EX 3 SP
ISSUED
FINISH
SIZE
SG MORALES
USED ON CAD SEED FILE NO.
APPLICATION
4
3
A
COSTA MESA, CALIFORNIA
TOLERANCES ARE:
DO NOT SCALE DRAWING
2
SH4005B1.FCD
5-18-93
FSCM NO.
DWG NO.
C SCALE
REV
SH-004005-00 NONE
CAD FILE NO.
SH4005C1.FCD
1
SHEET
C 1 OF 1
SCHEMATIC, EX-SERIES DISPLAY BOARD. PC-004001-00, REV A.
A PROD REL PER ECO 756
6-19-90
B REVISED PER ECO 1603 WR
9-29-92
J 1 26-PINS AC RELAY 1
25
AC RELAY 2
26
+24V
10
2
+24V UNREG
-24V
9
1
-24V UNREG
REG. +15V
12
4
+15V REG
J101, 201 14-PINS
C101
100p U101 A
10K C(D)
RN101
- INPUT
+ INPUT
C107
5532
10K D(C) 1
U101 B 5532
8 6
R102 1K
7
13
TO AMP +INPUT
10
TO AMP -INPUT
11
SIG. GND
1
4.7K
VR101
5
2
2
+
4.7uf NP
3
R110
C2 10uf
10K
4
10K B
GAIN R103 1K
10K A
R104 536
C1 + 10uf
SIG. GND
3
SIG. GND
5
REG. -15V
11
3
-15V REG
THERM BUS, 0-8V
23
7
THERM BUS 0-8V
8
Vcc SENSE R
C102
100p A
Q103 2N4410 R112 1.5K
+ C108
R111 1.5K
10uF
PWR-ON, 0-15V
19
SPKR SIGNAL, 5V PK
15
14
SPKR SIGNAL, 5V PK
CLIP-LIM BUS, 0-4V
21
12
CLIP-LIM BUS, 0-4V
MUTE BUS, 0-8V
17
9
MUTE BUS, 0-8V
R105 LEVEL
100 LD103 YEL
YEL -30
-10
3.9K
10uF
1K-D
330K
LD105 GRN
R108
1K-C
+
1K-B
10K-D(A)
R113
RED
10K-C(B)
Q101
634
LIM-CLIP
10K-B(C)
MPS2907
1K-B
R107
U102
RN103
RN102
LD102
C106
BA6124 RN103
C104 470 10V
1K-D
C 109 10uF
1K-A
Q102
D101
2N 4410
1N4004 1K-A
10K-A(D)
PWR ON
R106 10K
10uF
100
2N 4410
RN 104 1K-C
PWR GND
R101
Q 104
536
C105
SH-004001-00 1 B
LD104
R109
13
C103
.0033
LD101 RED
5
PWR GND
6
PWR GND
TEMP-PROT NOTES CH 2 PINS
1. ALL RESISTORS 1/4 WATT UNLESS SPECIFIED.
- INPUT
4
2. ALL CAPACITORS 25V UNLESS SPECIFIED.
+ INPUT
6
3. CH 2 RESISTOR NETWORK SECTIONS ( ) WHEN DIFFERENT.
SIG. GND
7
4. CH 1 COMPONENTS NUMBERED 101-199
SIG. GND
8
5. CH 2 COMPONENTS NUMBERED 201-299.
THERM BUS, 0-8V
24
6. PARTS IN COMMON TO BOTH CHANNELS NUMBERED 1-99.
PWR-ON, 0-15V
19
7. U102, 202 ROHM BA6124 OR SAMSUNG KA2284/85
SPKR SIGNAL, 5V PK
16
8. LD 101, 102, HIGH-EFFICIENCY RED LED.
CLIP-LIM BUS, 0-4V
22
9. LD 103, 104, HIGH-EFFICIENCY YELLOW LED.
MUTE BUS, 0-8V
18
10. LD 105, HIGH-EFFICIENCY GREEN LED.
PWR GND
14
PAT QUILTER 6-19-90
SCHEMATIC DIAGRAM EX-SERIES DISPLAY BOARD SH-004001-00 B
FCAD: 004001SH
SH4001B1.FDC
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