Sanyo EM-D9552NECO Service manual
The Sanyo EM-D9552NECO microwave oven offers a range of features for your cooking convenience. With 5 microwave power levels, you can choose the right power for your cooking needs, from defrosting to reheating and cooking. The spacious 20-liter capacity provides ample space for your dishes, while the turntable ensures even cooking. The digital control panel with LED display makes it easy to select cooking programs and adjust settings. The auto-cook menu provides preset cooking times and power levels for various food items, making meal preparation quick and simple.
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FILE No.
SERVICE MANUAL STAINLESS STEEL EM-SL20NECO
MICROWAVE OVEN WITH GRILL
MIN
SEC
AUTO
150w
450w
C
/
Kg
MIN SEC
AUTO
150w 450w
C
/
Kg
Product Code No.
EM-SL20NECO 1-437-574-25
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.
PRECAUTIONS
PRECAUTIONS TO BE OBSERVED BEFORE AND DURING SERVICING TO AVOID
POSSIBLE EXPOSURE TO EXCESSIVE MICROWAVE ENERGY
(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 if necessary:
(1) Interlock operation, (2) proper door closing, (3) seal and sealing surfaces (arcing, wear, and otherdamage), (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.
SM
-2400005
TABLE OF CONTENTS
Adjustment Procedures........................................ 1 Circuit Diagram.................................................... 4
Specifications....................................................... 2
Power Output Measurement................................ 2
Test Procedures and Troubleshooting................. 5-12
Disassembly Instructions..................................... 13-14
Precautions and Repair Service Tips................... 2
Oven Control Panel.............................................. 3
Exploded View and Parts list................................15-19
Control Circuit Board............................................ 20
Overall Circuit Diagrams...................................... 21
CAUTION
MICROWAVE ENERGY
PERSONNEL SHOULD NOT BE EXPOSED TO
THE MICROWAVE ENERGY WHICH MAY RADI-
ATE FROM THE MAGNETRON OR OTHER
MICROWAVE GENERATING DEVICE IF IT IS
IMPROPERLY USED OR CONNECTED. ALL
INPUT AND OUTPUT MICROWAVE CONNEC-
TIONS, WAVE GUIDES, FLANGES, AND GAS-
KETS MUST BE SECURE. NEVER OPERATE
THE DEVICE WITHOUT A MICROWAVE ENER-
GY ABSORBING LOAD ATTACHED. NEVER
LOOK INTO AN OPEN WAVE GUIDE OR
ANTENNA WHILE THE DEVICE IS ENERGISED.
Lever Stopper
1. ADJUSTMENT PROCEDURES
TO AVOID POSSIBLE EXPOSURE TO MICRO-WAVE
ENERGY LEAKAGE, THE FOLLOWING ADJUST-
MENT OF THE INTERLOCK SWITCHES SHOULD
BE MADE ONLY BY AUTHORISED SERVICE
PERSONNEL
PRIMARY INTERLOCK SWITCH, DOOR SENSING
SWITCH AND INTERLOCK MONITOR SWITCH
ADJUSTMENT
(Figure 1)
(1) Loosen 2 screws securing the lever stopper.
(2) Adjust the lever stopper position so that it is pushed up and pull forward until there is about zero gap.
2-1. Between the lever and the switch body on the door sensing switch.
2-2. Between the lever and the switch body on the interlock monitor switch.
2-3. Between the latch lever and the switch body on the primary interlock switch.
when the door latch is securely locked.
(3) Tighten the lever stopper screws securely.
(4) Make sure the interlock monitor is closed after the primary interlock switch opens when the door is opened very slowly, according to “CHECKOUT
PROCEDURE FOR SWITCHES” on page 8.
(5) Make sure the interlock monitor is open before the primary interlock and secondary interlock switches close when the door is closed very slowly, according to “CHECKOUT PROCEDURE FOR
SWITCHES” on page 8.
(6) Make sure the microwave energy leakage is below the limit of the regulation (5mW/cm 2 ) when measured with a detector. ( All service adjustments must be made for minimum energy leakage readings.)
Latch Lever
Screw
Positions
Door Latch
Primary Interlock
Switch
Lever
Door Sensing
Switch
Interlock Monitor
Switch
Figure 1
-1-
2. SPECIFICATIONS - EM-SL20N
Rated Power Consumption........ Micro 1450±10%W
Grill 1100+5/-10%W
Dual 2500+5/-10%W
(After 15mins.)
Microwave Output...................... 900W( Adjustable 90W through 900W )
Frequency.................................. 2,450MHz ± 50MHz
Power Supply............................. 230V,50Hz
Rated Current.............................Micro 6.3±10% Amps
Grill 4.75+5/-10% Amps
Dual 10.9+5/-10% Amps
(After 15mins.)
Safety Devices........................... Thermal Protector for
Magnetron and Cavity,
Open at 122˚C
Thermal Protector for
Heater, Open at 150˚C
Fuse (Cartridge Type 8A)
Primary Interlock Switch
Door Sensing Switch
Interlock Monitor Switch
Timer.......................................... Electronic Digital
Overall Dimensions.............490(W)x378(D)x322(H)mm
Oven Cavity Size.................304(W)x304(D)x248(H)mm
Turntable Diameter.....................262mm
Net Weight..................................Approx. 19.0Kg.
3. POWER OUTPUT MEASUREMENT
(1) Prepare 1000cc tap water in a wide mouthed Pyrex container.
(2) Stir thoroughly and note initial water temperature T1
(˚C).
(3) Place container in centre of oven and operate for 60 seconds at full power.
(4) Remove container, stir thoroughly and note final water temperature T2 (˚C).
(5) Calculate power output= 70 x Temp. rise (T2-T1).
NOTE: This is only an approximate test method, not
IEC705 test method to which the microwave oven has been tested and rated.
4.PRECAUTIONS AND REPAIR SERVICE TIPS
PRELIMINARY
A.SINCE NEARLY 4,000 VOLTS EXIST IN
SOME CIRCUITS OF THIS MICROWAVE
OVEN, REPAIRS SHOULD BE CARRIED
OUT WITH GREAT CARE
B.TO AVOID POSSIBLE EXPOSURE TO
MICROWAVE ENERGY LEAKAGE, THE
FOLLOWING PRECAUTIONS MUST BE
TAKEN BEFORE SERVICING.
(1)Before the power is applied.
(a)Open and close door several times to make sure the primary interlock switch, the door sensing switch, and the interlock monitor switch operate properly.
(Listen for the clicking sound from switches). Make sure the interlock monitor switch is closed after the primary interlock switch is opened, when the door is opened. (See pages 1 and 7).
(b)Make sure the perforated screen and the dielectric choke of the door are correctly mounted.
(2)After the power is applied.
(a)Open and close the door to see if the interlock mechanism operates properly.
(b)Check microwave energy leakage with a leakage detector and confirm the energy leakage is below
5mW/cm 2 .
(3)Do not operate the unit until it is completely repaired, if any of the following conditions exists.
(a)Door does not close firmly against the cavity front.
(b)The hinge is broken.
(c)The choke dielectric or the door seal is damaged.
(d)The door is bent or warped, or there is any other visible damage to the oven that may cause microwave energy leakage.
NOTE: Always keep the seal clean
(e)Make sure there are no defective parts in the microwave generating and transmission assembly.
(especially waveguide).
(4)Following items should be checked after the unit is repaired.
(a)The interlock monitor switch is connected correctly and firmly.
(b)The magnetron gasket on the magnetron is properly positioned.
(c)Wave guide and oven cavity are intact ( no leakage of microwave energy).
(d)The door can be properly closed and the safety switches work properly.
(e)The oven must be stopped when the door is opened or the time is up.
The oven must not be operated with any of the above components removed or bypassed.
-2-
5. OVEN CONTROL PANEL
2
4
6
9
11
MIN SEC
AUTO
150w 450w
C
/
Kg
1
3
10
12
13
5
7
8
14
Figure 1
KEYS:
1. Display Window
2. Function and Accessary Indicator
3. Kitchen Timer Display
4. Auto Program Key
5. Auto-Defrost
6. Kitchen Timer Key
7. More/Less Key
8. Personal Menu Keys
9. MIcro Power
10. Delay Start
11. Quick Start
12. Clear/Stop
13. Start
14. Rotary Dial
Notes :
A "beep tone" sounds when a "pad" on the control panel is touched, to indicate a setting has been entered.
When setting the controls you can keep your finger on a key until the desired setting is reached.
-3-
6.CIRCUIT DIAGRAM
EM-SL20N
230V ~
50Hz
OVEN CONDITION
DOOR : OPEN
TOUCH KEY
BOARD
C3
C1
R
L2 L1
C2
L1,L2 = 1mH
C1 = 0.22 F
C2,C3 = 4700PF
R = 1M
S101
ST
S1
5
RL1
1
SC1
COM
NO
L
3
GM
MTCO/
CFTCO(122ûC)
FUSE (8A T)
BM
RL4
CONTROL
CIRCUIT
BOARD
RL3
HT(150û o
C)
H
RL2
IR (25 )
SC2
NO
COM
2 1
SC3
COM
NC
HIGH VOLTAGE TRANSFORMER
MAGNETRON 2M-253H(IF)-N
H.V. FUSE 0.75A
1.14 F
SC1 : PRIMARY INTERLOCK SWITCH
SC2 : DOOR SENSING SWITCH
SC3 : INTERLOCK MONITOR SWITCH
MTCO/CFTCO : MAGNETRON/CAVITY FIRE
THERMAL CUT OUT
HT : HEATER THERMOSTAT
RL1 : MAIN RELAY
RL2 : POWER CONTROL RELAY
RL4 : GRILL HEATER RELAY
BM : BLOWER MOTOR
GM : GEAR MOTOR
L : CAVITY LAMP
ST : STEP DOWN TRANSFORMER
IR : INRUSH RESISTOR
HIGH VOLTAGE RECTIFIER
HIGH VOLTAGE CONDENSER
2x500PF/2x1.5uH
- The parts marked with are supplied with a high voltage which exceeds 250V.
- The parts marked with have special characteristics important for macrowave leakage.
When replacing any of these parts use only manufacturer's specified parts.
-4-
7. TEST PROCEDURES AND TROUBLESHOOTING
CAUTION
- DISCONNECT THE POWER SUPPLY
CORD FROM THE WALL OUTLET
WHENEVER REMOVING THE CABINET
FROM THE UNIT. PROCEED WITH THE
TESTS ONLY AFTER DISCHARGING
THE HIGH VOLTAGE CAPACITOR AND
REMOVING THE LEAD WIRES FROM
THE PRIMARY WINDING OF THE HIGH
VOLTAGE TRANSFORMER. ( See
Figure 3 )
Filament Windings
Secondary Winding
Primary Windings
Figure 4
A. TEST PROCEDURE
COMPONENT CHECKOUT PROCEDURE RESULTS
1) Check for resistance : Across the filament terminals of the Normal reading : the magnetron with an ohmmeter on Rx1 scale. Less than 1 ohm.
Figure 5
2) Check for resistance : Across the filament terminals of the magnetron and the chassis ground with an ohm-meter on highest scale.
Normal reading :
Infinite ohms
MAGNETRON
Figure 6
The chart below shows the firing times of the variable power relay for the EM-SL20 model. The table should be used as a means to check the magnetron is operating correctly and producing any other power setting apart from full power.
Power Level
High (900W)
M-High(750W)
Roast (450W)
Simmer(300W)
Warm (150W)
Low (80W)
On Time/s
(inc.’ramp up’ time)
30.0
28.0
18.0
13.0
8.0
6.0
% On Time
100
93
60
43
27
20
-5-
COMPONENT CHECKOUT PROCEDURE RESULTS
1) Measure the resistance :
With an ohmeter on Rx1 scale.
a. Primary Winding ; b. Filament Winding ; c. Secondary Winding ;
2) Measure the resistance :
With an ohm-meter on highest scale.
a. Primary winding to ground ; b. Filament winding to ground ;
HIGH
VOLTAGE
TRANSFORMER
Normal readings :
Approximately 1.75 ohms.
Less than 1 ohm.
Approximately 90.11 ohms.
Normal readings :
Infinite ohms
Infinite ohms
Note : Remove varnish of measured point.
HIGH VOLTAGE
CAPACITOR including
BLEEDER
RESISTOR
Figure 7
1) Measure the resistance : Across two terminals with an Normal reading : ohm-meter on highest scale Momentarily indicates several ohms, and gradually returns to 10 Meg-ohm.
Abnormal reading :
Indicates continuity or 10M
Ω from the beginning.
Figure 8
Measure the resistance : Across two terminals with an ohm-meter on its highest scale.
HIGH
VOLTAGE
DIODE
Figure 9
Normal reading :
Indicates over 10M
Ω in one direction (forward direction) and infinite ohms in the reverse direction, using meter which is provided with a 9-volt battery.
NOTE
Some digital meters may show over even in a forward direction because low measuring voltage of meter does not allow the meter current to pass through the high voltage diode.
Abnormal reading:
Indicates continuity or infinite ohms in both directions.
-6-
COMPONENT CHECKOUT PROCEDURE RESULTS
Measure the resistance : Across two terminals with an ohm-meter on its highest scale.
HV FUSE
Normal reading :
Indicates continuity.
Abnormal reading :
Indicates infinite ohms.
CONTROL
CIRCUIT
BOARD
COMPLETE
Figure 10
Measure the voltage : Between test points TP-1,TP-2, and ground (See control circuit board on page 20 ).
NOTE
Proceed with the check of the step down transformer, to see if any one of the measured values is different from the specified values
Test TP-1 TP-2 point
Voltage -5V -15V
DC DC
-7-
CHECKOUT PROCEDURE FOR SWITCHES
Disconnect the lead wires from the switches and check the continuity of the switches, connecting an ohm-meter to its terminals.
SWITCH CHECKOUT PROCEDURES DOOR OPEN DOOR CLOSE
Primary Interlock
Connect an ohm-meters leads to terminals "COM" and "NO" of switch
Door Sensing
Interlock monitor
Connect an ohm-meters leads to terminals "COM" and "NC" of switch
CAUTION : After checking the switches, make sure that the interlock monitor switch is properly connected according to the CIRCUIT DIAGRAM on page 4.
-8-
-12-
8.DISASSEMBLY INSTRUCTIONS
- OVEN MUST BE DISCONNECTED FROM ELECTRI-
CAL OUTLET WHEN MAKING REPLACEMENTS,
REPAIRS, ADJUSTMENTS, AND CONTINUITY
CHECKS BEFORE PROCEEDING WITH ANY REPAIR
WORK AFTER DISCONNECTING. WAIT AT LEAST 1
MINUTE, UNTIL THE CAPACITOR IN THE HIGH VOLT-
AGE AREA HAS FULLY DISCHARGED.
- WHEN REPLACING ANY DOOR MICRO SWITCH,
REPLACE WITH THE SAME TYPE SWITCH SPECI-
FIED ON THE PARTS LIST.
A. REMOVING PRIMARY INTERLOCK SWITCH,
DOOR SENSING SWITCH AND INTERLOCK
MONITOR SWITCH
(See Figure 1 on page 1 and Figure 12 on this page)
(1) Remove 2 screws securing the lever stopper.
(2) Disconnect all lead wires from the primary interlock switch, door sensing switch and the interlock monitor switch
(3) Ease away the retaining clips holding the Primary interlock switch onto the lever stopper and remove.
(4) Remove the door sensing switch by reference to the step (3).
(5) Remove the interlock monitor switch by reference to step (3).
(6) Make the necessary adjustment, and make microwave energy leakage check according to “1. ADJUSTMENT
PROCEDURES” on page 1. After the switch is replaced with a new one, check proper operation of it according to “CHECKOUT PROCEDURE FOR
SWITCHES” on page 8.
LEVER STOPPER
MICROSWITCH
C. REMOVING MAGNETRON
(See exploded view on page 16 )
(1) Remove the antenna complete according to
B. REMOVING THE ANTENNA.
(2) Disconnect the 2 lead wires from the magnetron.
(3) Remove 1 screw securing the duct to the magnetron, and take out the duct.
(7) Remove 4 screws securing the magnetron to the waveguide.
Take out the magnetron VERY CAREFULLY.
NOTES
- When removing the magnetron, make sure that its dome does not hit any adjacent parts, or it may be damaged.
- After replacing the magnetron, be sure to check the microwave energy leakage with a leakage detector and confirm the leakage is below 5 mW/cm 2 .
D. REMOVING FUSE
(A) Remove the 8A fuse with a screwdriver.
- When replacing the 8A fuse, be sure to use an exact repair part.
- If the 8A fuse blows immediately, check the primary interlock switch and the interlock monitor switch (termi nals “C” and “NC”) according to “CHECKOUT
PROCEDURE FOR SWITCHES” on page 8, and make sure to check the microwave energy leakage according to “1. ADJUSTMENT PROCEDURE” on page 1, when the primary interlock switch or the interlock monitor switch is replaced.
- If the primary interlock switch is defective, replace not only the primary interlock switch but also the interlock monitor switch.
Then install a new 8A fuse.
- If the primary interlock switch and the interlock monitor switch (terminals “C” and “NC”) operate properly, determine which of the following is defective: blower motor, turntable motor, high voltage transformer, high voltage capacitor, high voltage diode or magnetron.
- If the high voltage diode is defective , replace not only the high voltage diode but also the HV fuse.
E. REMOVING DOOR
RETAINING
CLIPS
Figure 12
(1) Remove the 2 screws securing the upper hinge.
(2) Tilt the top of the door toward you.
(3) Lift up the door to remove it.
Interlock Switch Replacement - when replacing faulty switches, be sure switch retaining clips are not bent, broken or otherwise deficient in their ability to secure the switches in place.
B. REMOVING THE ANTENNA
(See exploded view on page 15 )
(1). Remove the screw securing the cavity cover to the cavity.
(2). Remove the antenna complete by slightly bending it so the retension clips holding it slide out of the cavity wall.
-13-
When replacing the door body or door assembly the new door has to be set properly ensuring the correct door gap between door body and cavity front.
To set the new door;
1. Mount door loosely on cavity.
2. Before tigthening the top and bottom hinge screws place feeler gauges (the thickness varies for different models- see table below) between the door assembly and the cavity front plate between the top and bottom hinges.
NB. Be careful not to scratch the door cover with the feeler gauges.
3. The door should then be aligned with the control base and held firmly in place leaving a gap within 1-2mm.
between the door cover and control base.
4. The hinge screws should then be tightened to hold the door in place, and the feeler gauges removed.
5. The door gap should then be checked again using feeler gauges.
Below is a table giving the door setting for the:-
EM-SL20N
DOOR GAP
Lower Limit Upper Limit
0.2mm.
0.8mm.
After setting the door gap, the door is closed with the door latch fully engaged and the screws securing the switch base are loosened. The switch base is then eased to the right to pull the door face hard onto the front of the microwave. The screws are then secured tight. To check if the operation has been carried out correctly push the door top and bottom. Any movement should be minimal, and the door should feel tight to the front face of the microwave.Confirm that the operation has been successfully carried out by depressing the door release lever until the microswitches are heard to operate. This occurs just before the door opens.
NOTES
- After replacing the door, be sure to check that the primary interlock switch, door sensing switch and the interlock monitor switch operate normally. (See page 1).
- After replacing the door check for microwave energy leakage with a leakage detector.
Microwave energy leakage must be below the limit of
5mW/cm 2 .
F. DISASSEMBLYING DOOR
( See exploded view on page 18 )
(3) Remove power cord from cavity assembly by lifting cord bush, moving it to the left and pulling it away from cavity rear plate.
(4) Install the new power supply cord with the reverse procedure of above (1) to (3).
WARNING
For changing the power supply cord, never use parts other than the following :
Part Name : Power Supply Cord Assembly
Part No : 617 213 2990 (Continental)
H. REMOVING TURNTABLE MOTOR COVER
(Refer to Figures 13 and 14 below )
(1) Turn the unit and cut the 6 joints of the bottom plate and the motor cover using diagonal pliers
(nipper). (See Figure 13 )
(2) Seperate the motor cover and the bottom plate.
- Bend the cut joints inside slightly for safety and be careful of the sharp edges.
RE-INSTALL :
NOTES
(1) Rotate the motor cover through 180˚.
(2) Insert the edge of the motor cover into the tab on the bottom plate.
(3) Secure the motor cover by screwing it to the bottom plate (See Figure 14 )
Use screw 411 156 5502 (not supplied with oven)
Clip metal here and at other 5 locations.
(1) Insert a thin flat blade screwdriver between the choke dielectric and the door mainframe and lift up the choke dielectric to release the hooks one by one.
(2) To remove door cover, remove the 2 screws securing the door cover to the door main frame
(3) Insert a thin flat blade screwdriver between the door cover and door mainframe and release the hooks one by one.
(4) To detach the glass door panel, insert a thin flat blade screwdriver between the door panel and door cover and release the clips one by one.
NOTES
- The choke dielectric, the glass door panel and the door cover may be damaged when they are removed.
When re-installing them, replace them with new ones if they are damaged.
- After installing the door in place, check for microwave energy leakage with a leakage detector.
Microwave energy leakage must be below the limit of
5mW/cm 2 .
Metal Tabs
Retaining Lugs
Figure13
Insert screw here to secure.
G. CHANGiNG POWER SUPPLY CORD
(See exploded view on page 16 )
(1) Removing the earthing screw.
(2) Remove the power supply cord from the terminal of PCB complete.
Tabs fit into retaining lugs.
Figure14
-14-
8. EXPLODED VIEW AND PARTS LIST
CAVITY PARTS
2
2
11
13
14
19
2
15
16
1
2
2
12
10
17
3
18
9
8
7
6
EM-SL20N
Key Part No. Description Q'ty
No.
1 617 220 4376 Cabinet 1
2 411 156 5601 SCR TPG PAN+F+S 4x10 7
3 MO-A0730 Cavity 1
4 MO-S1121 Gear Motor 1
5 411 001 6005 SCR S-TPG PAN 4x8 2
6 MO-R0132 Special Washer 1
7 617 184 7659 Turntable Shaft 1
8 617 215 9560 Roller Base Ass'y 1
9 617 167 1421 Glass Tray 1
10 MO-A0737 Antenna Complete 1
11 617 169 8930 Cavity Cover
12 412 037 5901 SCR TPG TRS 4x6K
1
1
5
4
Key Part No. Description Q'ty
No.
13 617 221 0025 Heater Complete
14 617 202 4554 Thermostat, 150˚C
1
1
15 617 167 0431 Duct
16 617 169 6875 Frame Rear Plate
17 617 166 2153 Cook Net (H) 1
18 617 170 5058 Cook Net (L) 1
19 411 010 5600 SCR EVR PAN 3x6
1
1
1
-15-
SWITCHES AND MICROWAVE PARTS
5
3
3
27
6a
2
6b
3
18
19
20
26
3
25
4
24
1
3
28
14
13
7
21
22
8
15
17
9
3
16
10
12
11
EM-SL20N
Key Part No. Description Q'ty
No.
1 411 010 5600 SCR EVR PAN 3x6 1
2 411 156 5601 SCR TPG PAN+F+S 4x10
3 411 156 5502 SCR S-TPG PAN+F+S 4x10
4 411 171 9004 SCR TPG TRS+FLG 3x8
5 617 213 2990 Power Supply Cord
6a 617 179 0746 PCB Complete (N-F) 1
1
6
1
1
6b 423 027 8802 Fuse 1
7 617 167 0417 Space Partition 1
8 617 162 2041 Capacitor Band 1
9 MO-S0856 Capacitor 1.14uF 1
10 MO-S0947AS Diode Ass'y 1
11 617 234 1934 Lead Wire Ass'y 1
12 617 182 2915 HV Fuse 1
14 MO-S1118 Magnetron 1
16 MO-M1211 Duct 1
-16-
Key Part No. Description Q'ty
No.
17 617 195 3428 Latch Lever 1
18 617 189 0839 Lever Stopper 1
19 617 244 0651 Door Sensing Switch 1
20 617 244 0644 Interlock Monitor Switch 1
21 617 244 0651 Primary Interlock Switch 1
22 MO-S0587 Lamp Ass'y 1
24 617 202 4561 Thermostat V122˚C
25 617 220 1757 Stay Plate
26 617 218 9673 Special Screw 4
1
1
27 411 004 5609 NUT HEX M4
28 402 071 0703 Ceramic Resistor
1
1
MICROWAVE PARTS
1
3
6
8
5
7
4
EM-SL20N
Key Part No.
No.
Description Q'ty
1 617 209 4557 Transformer
2 617 225 1721 Special Screw
3 617 225 6153 Bottom Plate Assembly
4 ------------------ Gear Motor Cover
5 617 144 5435 Foot Cushion Assembly
6 617 166 7493 Bottom Hinge
7 411 156 5602 SCR S-TPG PAN+F+S 4x10 1
8 617 102 7495 Special Screw 2
4
1
1
2
1
1
-17-
2
2
DOOR PARTS
1
2
3
Inner Door Panel always supplied with Door Main Frame but can be ordered seperately quoting number below.
4
5
EM-SL20N
Key Part No. Description Q'ty
No.
1 MO-A0748 Door Cover Assembly 1
2 MO-A0768 Door Main Frame(Supplied 1 with inner Door Panel)
* 617 144 2472 Glass Inner Door Panel
3 617 167 0189 Hinge
1
1
4 617 167 1292 Choke Dielectric 1
5 617 195 3411 Door Latch 1
6 617 101 1494 Spring 1
* MO-A0756 Door Assembly 1
NB. Please refer to the detailed instructions for door setting on page 14 of the service manual before changing, adjusting or repairing these parts.
-18-
6
CONTROL PANEL PARTS
1
2
3
11
4
11
10
6
7
12
13
9
8
EM-SL20N
Key Part No. Description Q'ty
No.
1 MO-A0749 Control Base Assembly 1
2 617 236 6463 Knob Body 1
3 617 219 5520 PCB Complete
4 617 224 0275 PCB Complete
1
1
6 617 197 4836 PCB Complete 1
7 617 181 7980 Latch Lever 1
8 MO-A0747 Handle Assembly 1
9 617 188 3329 Spring 1
10 617 224 1067 Knob Assembly 1
11 411 064 6608 SCR TPG BIN 3x8 11
12 617 231 3047 Special Nut (Metal) 1
13 617 331 3047 Special Nut (Resin) 1
* MO-P5257 Operating Instructions (EES) 1
* MO-P5276 Carton Box 1
* These items not illustrated
-19-
10.CONTROL CIRCUIT BOARD
EM-SL
20N
Model Spares No. RL
3 M.Processor
EM-SL
20N 617 224 0275 Yes IC11 LM8842
4 9 7 0 0
TP1
TP2
-24-
LCD1 H4062
11. OVERALL CIRCUIT DIAGRAM
EM-SL20
N
C301 1000P /50V
C302 1000P /50V
90-68 67-58 55
C102 0.01u /50V
L1
L2
IC 11 LM8842
R121 10K R122 100K R123 100K R124 100K
RL1
-21-
V5T1
2002-09
Please Note
All the information that appears in this service manual was correct at the time of production. SANYO Electric
Company reserves the right to make changes to parts or processes in order to maintain their policy of continuing improvement.

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