Transcript
FILE NO.
SUPPLEMENTOF SERVICE MANUAL
EM-M 1 OTS(Australia/New Zealand)
Microwave Oven
The following parts are different from the parts on model EM-M105WS (SM-860213)
r
CAVITY PARTS Key No. 1 4 6 10 22
Part No. 6171861174 6172266824 6172171746 617221 6096 6172000381
Description Cabinet Power Cord Oven Cavity Plastic Foot Thermal Fuse
SWITCHES AND MICROWAVE PARTS 2 9 11 21 22 23
6172259048 6172260334 6172249438 617221 4078 6172214061 6172214078
H. V. Transformer Lead Wire Assy H. V. Capacitor Micro Switch Micro Switch Micro Switch
-DOOR PARTS Key No. 3
I
Part No.
Description
6172012872
Door Main Frame
CONTROL PANEL PARTS 2 5
6172260341 6172186825
Control Sheet Timer Switch
PRINTED MATTERS Carton Box Name Plate Circuit Diagram Operating Manual m Product Code No.
43751300
See the Service Manual of EM-Ml 05WS (SM-860213) except the items described in this Service Manual. Foreword Read this manual carefully, especially precaution on microwave energy, and follow the procedure strictly. Careless servicing and testing may expose yourself to the microwave energy leakage. PRECA(JTIONS
PRECAUTIONS TO BE OBSERVED BEFORE AND DURING SERVICING TO AVOID POSSIBLE EXPOSURE TO EXCESSIVE MICROWAVE ENERGY
L
(a) Do not operate or allow the oven to be operated with the door open.
(b) Make the following safety checks on all ovens to be serviced before activating the magnetron or other microwave source, and make repairs as necessary : (1) Interlock operation, (2) proper door closing, (3) seal and sealing surfaces (arcing, wear, and other damage), (4) damage to or loosening of hinges and latches, (5) evidence of dropping or abuse.
(c) Before turning on microwave power for any service test or inspection within the microwave generating compartments, check the magnetron, wave guide or transmission line, and cavity for proper alignment, integrity, and connections. (d) Any defective or misadjusted components in the interlock, monitor, door seal, and microwave generation and transmission systems shall be repaired, replaced, or adjusted by procedures described in this manual before the oven is released to the owner. REFERENCE NO. SS-860270
- TABLE OF CONTENTS -
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Power Output Measurement.. . . . . . . . . . . . . . . . . 1
1.
(c)
SPECIFICATIONS
Rated Power Consumption . . .
Circuit Diagram . . . . . . . . . . . . . . . . . . . . . . 2 Test Procedures . . . . . . . . . . . . . . . . . . . . . . 3
1.
Set cooking time to two (2) minutes. (“2 00” appears in display)
1150W.
2. Touch START key and operate oven for exactly two (2) minutes.
Microwave Output . . . . . . . . . . 750 w. Frequency, . . . . . . . . . . . . . . . 2450MHzt50MHz.
(D)
Power Supply . . . . . . . . . . . . . 230- 240V,50HZ.
2. Stir both water with thermometer and measure the water temperature rise respectively.
Rated Current . . . . . . . . . . . . . 5.1 Amp. Safety Devices . . . . . . . . . . . . Temp. Fuse, Open at 167CforCavity. Thermal Protector, Open at 122°C for Magnetron. Fuse (Cartridge Type 8A) Primary Interlock Switch. Door Sensing Switch and Relay 2. Interlock Monitor Switch.
1. Take out the two bowls at once.
(E)
1. Get temperature rise by calculation the difference (water temperature after cooking minus initial temperature) in each bowl. 2. Then calculate average value(t) of both temperature rise in degrees centigrade. 3. Then work out;
Power Output (watt) = 70 x At
Timer . . . . . . . . . . . . . . . . . . . 60min.
Where At is an Average Temperature Rise in degrees Overall Dimensions. . . . . . . . . 458(W) X351 (D) X250(H) mm.
centigrade. (F)
Power Output shall be in the following range:
Oven Cavity Size . . . . . . . . . . 290 (W) X 311(D) X 191 (H) mm.
Effective Capacity of Oven Cavity . . . . . . . . . . . . . .
I
17 liters.
Minimum 9.6 ‘C Maximum 12.3 “C
Net Weight . . . . . . . . . . . . . . . Approx. 12.5 Kg.
2. POWER OUTPUT MEASUREMENT
Microwave Power Output
Average Temperature Rise
Turn Table Diameter . . . . . . . . 275 mm.
(G)
NOTE The Power Output specification 750 Won this model is measured with IEC measurement. The Power Output is measured with two (2) liters water is equivalent to 750W in measurement with IEC, when measured with the following power output. (A) 1. Fill two test bowls with each 1 liter water respectively. 2. Use accurate thermometer and measure each water temperature respectively. (B) ., Place the two bowls on alass turntable.
-1-
I
672 W
I I
861 w
Power Output will be influenced by line voltage of power supply. Consequently, correct power output must be measured within 240V AC * 2 volt while unit is operating.
3. CIRCUIT DIAGRAM
L POWER CORD POWER CORD ~N_ –. GR=UND — ——— — ~1 ~ 8A
o
CII MAGNETRON THERMAL PROTECTOR , “ I OPENS AT 122f5°C CLOSE AT 30”C I k!’
Cl = 0.22y
CZ,
w ~ti~$!~<
w
5?5
w
CAVITY LIGHT
F
!I’, ”LZ’’fn650p Ii
C3= 47130PF
‘
R
CAVITY TEMPF~SE
0
HIGH VOLTAGE TRANSFORMER —-.——.—— —. ——— —.— I
BK
BLOWER MOTOR
CONDITION OF OVEN TIMER : OFF DOOR : OPEN PRIMARY INTERLOCK SWITCH: LOWER DOOR INTERLOCK SWITCH SECONDARY INTERLOCK SWITCH: UPPER DOOR INTERLOCK SWITCH
4KVDC F FA
0
R
I CAPACITOR
h
MAGNETRON
RESISTOR 1OMEG-OMH
Figure 1
NOTES : ‘HE “GN
❑
Parts marked with this sign are supplied with High Voltage exceeding 250V.
o
Parts marked with this sign have special characteristics important for microwave leakage, When replacing any of these parts use only manufacturer’s specified parts.
THE SIGN ~
-2-
WIRING COLOUR B K : ,LAcK BR : BROWN BL : BLUE W : WHITE : ORANGE o : RED R
4. TEST PROCEDURES AND TROUBLESHOOTING
P“
Filament Windings / /
CAUTION -DISCONNECT THE POWER SUPPLY CORD FROM THE WALL OUTLET WHENEVER REMOVING THE CABINET FROM THE UNIT. PROCEED WITH THE TESTS ONLY At7ER DISCHARGING THE HIGH VOLTAGE CAPACITOR AND REMOVING THE LEAD WIRES FROM THE PRIMARY WINDING OF THE HIGH VOLTAGE TRANSFORMER. (SEE FIGURE 2)
A. TEST PROCEDURES
Figure 2
COMPONENT
CHECKOUT PROCEDURE
RESULT
1) Check for resistance: Across the filament terminals of the magnetron with an ohmmeter on R x 1 scale. n
Normal reading: Less than 1 ohm.
Ohm-meter
MAGNETRON wgure3
2) Check for resistance: Between each filament terminal of the magnetron and the chassis ground with an ohmmeter on highest scale. 1
Normal reading: Infinite ohms.
l-r
Ohm-meter
HIGH-VOLTAGE TRANSFORMER
1) Measure the resistance: With an ohm-meter on R x 1 scale. a. Primary winding; b. Filament winding; c. Seconda~ winding; 2) Measure the resistance: With an ohm-meter on highest scale. a. Primary winding to ground. b. Filament winding to ground;
Normal readings: Approximately 1.8 ohms. Less than 1 ohm. Approximately 123 ohms. Normal readings: Infinite ohms Infinite ohms.
Ohm-meter
Note: Remove varnish of measured point
AUGUST ’99/ 300 LT Printed in Singapore
Figure 5
-3-
SANYO Electric Co., Ltd. Osaka, Japan
