Sanyo Microwave Oven EM F3400SW User Guide

File No :  
SERVICE MANUAL  
Microwave Oven  
EM-F3400SW (U.S.A.)  
Product Code No.  
437 450 57  
CAUTION  
WARNING TO SERVICE TECHNICIANS  
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 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,  
andconnections.  
(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.  
(e) A microwave leakage check to verify compliance with the Federal performance standard should be performed  
on each oven prior to release to the owner.  
REFERENCE NO. SM-860304  
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- TABLE OF CONTENTS -  
Adjustment Procedures ...................................................  
Specifications ..................................................................  
Power Output Measurement ...........................................  
Precautions and Repair Service Tips ..............................  
Circuit Diagram ...............................................................  
1
2
2
2
3
Test Procedures and Troubleshooting....................  
4
10  
14  
20  
21  
~
~
~
Disassembly Instructions ....................................... 11  
Exploded View and Parts List ................................ 15  
Overall Circuit Diagram ..........................................  
NOTE : If the interlock monitor circuit operates and at the  
same time the fuse blows with the door opened,  
besuretoreplacethecontrolcircuitboardbecause  
relay2onthecontrolcircuitboard, thedoorsensing  
switch and the electric circuit related on the  
door sensing switch, which act as Secondary  
Interlock Switch.  
1. ADJUSTMENT PROCEDURES  
TO AVOID POSSIBLE EXPOSURE TO MICROWAVE  
ENERGY LEAKAGE, THE FOLLOWING  
ADJUSTMENT OF THE INTERLOCK SWITCHES  
SHOULD BE MADE ONLY BY AUTHORIZED  
SERVICE PERSONNEL.  
Door  
Latch  
The SANYO service center should have the designated  
detector to measure the microwave energy leakage  
after the repair or adjustment.  
Lever Stopper  
NOTE : Detector to be used at the service center is  
NARDA 8100, 8200 or the equivalent.  
Door  
Sensing  
Switch  
PRIMARY INTERLOCK SWITCH, INTERLOCK  
MONITOR SWITCH AND DOOR SENSING SWITCH  
ADJUSTMENT  
(Figure 1)  
(1) Loosen 2 screws securing the lever stopper.  
(2) Adjust the lever stopper position so that it is pushed  
forward and pull backward until there is about zero  
gap between the latch lever and switch body on the  
primary interlock switch and at the same time there  
is about zero gap between the door latch and the  
switch body on the door sensing switch when the  
door latch is securely locked.  
Interlock  
Monitor  
Switch  
Screws  
(3) Tighten the lever stopper screws securely.  
(4) Make sure the interlock monitor switch closes after  
the primary interlock switch opens when the door  
is opened very slowly, according to “CHECKOUT  
PROCEDURE FOR SWITCHES” on page 6.  
(5) Make sure the interlock monitor switch opens before  
the primary interlock switch closes when the door is  
closed very slowly, according to “CHECKOUT  
PROCEDURE FOR SWITCHES” on page 6.  
(6) Make sure the microwave energy leakage should be  
no greater than 4mW/cm2 to allow for measurement  
uncertainty when measured with a detector.  
(All service adjustments must be made for  
minimum microwave energy leakage readings.)  
Primary  
Interlock  
Switch  
Latch  
Lever  
Figure 1  
- 1 -  
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4. PRECAUTIONS AND REPAIR SERVICE TIPS  
2. SPECIFICATIONS  
PRELIMINARY  
Rated Power Consumption .. 1480W.  
Microwave Output ................ 1050W.  
Frequency ............................. 2,450MHz 50MHz.  
Power Supply........................ 120V 12V, 60Hz.  
Rated Current ....................... 12.9 Amp.  
Safety Devices ..................... Thermal Fuse open at  
332°F (167°C) for Cavity.  
A. SINCE NEARLY 2,000 VOLTS EXISTS IN SOME CIR-  
CUITS 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.  
Thermal Protector open at  
252°F (122°C) for Magnetron.  
(1) Before the power is applied :  
(a) Open and close door several times to make sure the  
primary interlock switch, the interlock monitor switch  
and the door sensing switch operate properly.  
(Listen for the clicking sound from the switches).  
Make sure the interlock monitor switch closes after  
the primary interlock switch is opens when the door  
is opened. (See pages 1 and 6).  
Fuse (Cartridge Type 20A)  
Primary Interlock Switch,  
Door Sensing Switch and  
Relay 2.  
Interlock Monitor Switch.  
Timer ..................................... Electronic Digital, up to  
99 min. 99 sec.  
OverallDimensions ................ 205/8”(W) x 161/2”(D) x 113/8”(H)  
Oven Cavity Size .................. 133/4”(W) x 145/8”(D) x 81/2”(H)  
(b) Make sure the perforated screen and the choke die-  
lectric of the door are correctly mounted.  
Turn Table Diameter.............. 107/8  
Effective Capacity of  
(2) After the power is applied :  
(a) Open and close the door to see if the interlock mech-  
anism operates properly.  
Oven Cavity .......................... 1.1 Cubic Feet.  
Net Weight ........................... Approx. 34.5 Lbs.  
(b) Check microwave energy leakage with a leakage  
detector and confirm the energy leakage should be  
no greater than 4mW/cm2 to allow for measurement  
uncertainty.  
3. POWER OUTPUT MEASUREMENT  
NOTE  
(3) Do not operate the unit until it is completely repaired,  
if any of the following conditions exists :  
The power output specification, 1050W. on this model is  
measured with IEC measurement. The power output is  
measured with two (2) liters water is equivalent to 1050W.  
in measurement with IEC, when measured with the following  
power output.  
(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  
visibledamagetotheoventhatmaycausemicrowave  
energyleakage.  
(1) Fill two beakers (glass or plastic) with each one liter of  
tapwater(about20°C)andmeasurethewatertemperature.  
(Use a thermometer with a 1/10 degree gauge).  
NOTE : Always keep the seal clean.  
(e) Make sure that there are no defective parts in the  
interlock mechanism.  
(2) Place the beakers side by side in the center of the glass tray.  
(3) Close the door, set the “TIME” for two minutes. (“200” in  
the display window). Touch the “START” key and heat  
the water exactly for two minutes.  
(f) Make sure there are no defective parts in the  
microwave generating and transmission assembly.  
(especially waveguide).  
(4) Take the beakers out, immediately stir the water and  
measure the water temperature respectively.  
(4) The following items should be checked after the unit  
is repaired :  
(5) Calculate the temperature rise of water in each beaker.  
Then calculate the average value of two temperature rises.  
Output power can be calculated by the equation :  
Power Output (W) = 70 x t  
(a) The interlock monitor switch is connected correctly  
and firmly.  
(b) The magnetron gasket on the magnetron is properly  
positioned.  
Where t is an average temperature rise in degrees  
Centigrade.  
(c) Waveguide and oven cavity are intact (no leakage of  
microwaveenergy).  
(6) Power Output shall be in the following range :  
(d) The door can be properly closed and the safety  
switches work properly.  
Average Temperature Rise  
19.6°F (10.9°C)  
Power Output  
763W  
Minimum  
Maximum  
(e) The oven must be stopped when the door is opened  
or the time is up.  
20.0°F (14.0°C)  
980W  
(7) Power Output is affected by the line voltage under load.  
For correct Power Output measurement, the line voltage  
under load must be 120 1 volts.  
The oven must not be operated with any of the above  
components removed or bypassed.  
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5. CIRCUIT DIAGRAM  
Figure 2  
SECONDARY INTERLOCK  
PRIMARY  
INTERLOCK  
SWITCH  
INTERLOCK  
MONITOR  
SWITCH  
DOOR  
SENSING  
SWITCH  
RELAY 2  
SWITCH MADE  
CONDITION  
COM  
NO  
COM  
NC  
COM  
NO  
COM  
NO  
DOOR OPEN  
DOOR CLOSE  
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Filament Windings  
6. 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)  
Secondary  
Windings  
Primary  
Windings  
A. TEST PROCEDURES  
Figure 3  
COMPONENT  
CHECKOUT PROCEDURE  
RESULT  
1) Check for resistance : Across the filament  
terminals of the Magnetron with an Ohm-Meter  
on R x 1 scale.  
Normalreading :  
Less than 1 Ohm.  
Ohm-Meter  
Figure 4  
MAGNETRON  
2) Check for resistance : Between each filament  
terminal of the Magnetron and the chassis  
ground with an Ohm-Meter on highest scale.  
Normal reading :  
Infinite Ohms.  
Ohm-Meter  
Figure 5  
1) Measure the resistance :  
With an Ohm-Meter on R x 1 scale.  
a. Primary winding :  
Normal readings :  
Approximately 0.38 Ohms.  
Less than 1 Ohm.  
b. Filament winding :  
c. Secondary winding :  
Approximately 82.0 Ohms.  
2) Measure the resistance :  
Normal readings :  
With an Ohm-Meter on highest scale.  
a. Primary winding to ground.  
HIGH-VOLTAGE  
TRANSFORMER  
Infinite Ohms.  
Infinite Ohms.  
b
Filament winding to ground.  
Ohm-Meter  
Figure 6  
Note : Remove varnish of  
measured point.  
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COMPONENT  
CHECKOUT PROCEDURE  
RESULT  
Measure the resistance : Across two terminals  
with an Ohm-Meter on highest scale.  
Normalreading :  
Momentarily indicates several Ohms,  
and gradually returns to 10 Meg-Ohms.  
HIGH-VOLTAGE  
CAPACITOR  
including  
Abnormal reading :  
Indicates continuity or 10 Meg-Ohms  
from the beginning.  
BLEEDER  
RESISTOR  
Ohm-Meter  
Figure 7  
Measure the resistance : Across two terminals  
with an Ohm-Meter on R x 10,000 scale.  
Normalreading :  
Indicates about the middle position in  
one direction (forward direction) and  
infinite ohms in the reverse direction,  
using meter which is provided with a  
9 volt battery.  
Ohm-Meter  
NOTE  
HIGH-VOLTAGE  
DIODE  
-
Some digital meter 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.  
Figure 8  
Measure the voltage : Between test point TP-1,  
TP-2 and Ground. (See Control Circuit Board on  
page 19).  
Test  
Point  
TP-1  
TP-2  
CONTROL  
CIRCUIT  
BOARD  
NOTE  
-5V  
DC  
-15V  
DC  
Voltage  
- Proceed with the check of the Step-Down  
Transformer, to see if any one of the measured  
values is different from the specified values.  
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COMPONENT  
CHECKOUT PROCEDURE  
RESULT  
When  
touched  
When not  
touched  
Measure the resistance between terminals of  
FPC connector after removing it from S101.  
(Figure 9).  
Resistance  
value  
Less than Morethan  
1K Ohms 1 MEG Ohms  
TOUCH KEY  
BOARD  
NOTE  
- When reconnecting the FPC connector, make  
sure the holes on the connector are properly  
inserted in hooks of the plastic fastener in S101.  
When checking “START” key, connect  
Ohm-Meter as illustration below.  
Ohm-Meter  
MATRIX CIRCUIT FOR  
TOUCH KEY BOARD  
FPC CONNECTOR  
MORE +  
LESS -  
POWER  
LEVEL  
SOUP /  
0
6
5
BEVERAGE  
TOTAL  
QUICK  
ON  
POTATO  
DEFROST  
1
2
7
8
QUICK  
DEFROST  
FROZEN  
ENTREE  
KITCHEN  
TIMER  
PIZZA  
SLICE  
ADD  
FROZEN  
START  
3
4
9
VEGETABLE  
30 SEC  
STOP /  
CLEAR  
CUSTOM  
FRESH  
CLOCK POPCORN  
PROGRAMS  
VEGETABLE  
TERMINALS OF FPC CONNECTOR  
Figure 9  
CHECKOUT PROCEDURE FOR SWITCHES  
Disconnect the lead wires from the switches and check for the continuity of the switches, connecting an Ohm-Meter  
to its terminals.  
SWITCHES  
CHECKOUT PROCEDURES  
DOOR OPEN  
DOOR CLOSED  
(See Figure 1 on page 1)  
Primary Interlock  
Terminals “COM” and “NO”  
Terminals “COM” and “NC”  
Door Sensing  
Interlock Monitor  
CAUTION  
:
After checking the switches, make sure that the interlock monitor switch is properly connected according  
to the CIRCUIT DIAGRAM on page 3.  
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7. DISASSEMBLY INSTRUCTIONS  
OVEN MUST BE DISCONNECTED FROM ELECTRICAL  
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-VOLTAGE AREA  
HAS FULLY DISCHARGED.  
B. REMOVING PRIMARY INTERLOCK SWITCH AND  
INTERLOCK MONITOR SWITCH  
(Figure 10-b)  
(1) Disconnect all wire leads from primary interlock and  
Interlock monitor switch.  
WHEN REPLACING ANY DOOR MICROSWITCH,  
REPLACE WITH THE SAME TYPE SWITCH SPECIFIED  
ON THE PARTS LIST.  
(2) Pull the primary interlock switch or Interlock monitor  
switch upward at the same time while pushing the  
switch stoppers to allow a space between the  
switch body and catches.  
A. REMOVING DOOR SENSING SWITCH  
(Figures 1 on page 1, 10-a)  
(3) Make necessary adjustments or replacement of  
switch by the reversing step (2) and check micro-  
wave energy leakage according to “1. ADJUSTMENT  
PROCEDURES” on page 1, after it is replaced with  
new one, and check proper operation of it according  
to “CHECKOUT PROCEDURE FOR SWITCHES” on  
page 6.  
(1) Disconnect all wire leads from the door sensing  
switch. (Figure 1 on page 1)  
(2) Remove 2 screws securing the lever stopper.  
(3) Push the door sensing switch upward while pressing  
adjacent upper switch stopper of lever stopper and  
lower switch stopper down (Figure 10-a).  
Switch Stoppers  
(4) Then remove it by lightly pressing the switch toward  
you (Figure 10-a).  
(5) Make necessary adjustments or replacements of the  
door sensing switch by reversing step (3) and check  
microwave energy leakage according to “1.  
ADJUSTMENT PROCEDURES” on page 1, after it is  
replaced with new one, and check proper operation  
of it according to “CHECKOUT PROCEDURE FOR  
SWITCHES” on page 6.  
Interlock  
Monitor  
Switch  
Primary  
Interlock  
Switch  
Upper  
Switch  
Stopper  
Door  
Sensing  
Switch  
Switch Stoppers  
Figure 10-b  
Interlock Switch Replacement - when replacing  
faulty switches, be sure switch mounting tabs are  
not bent, broken or otherwise deficient in their  
ability to secure the switches in place.  
Lower  
Switch  
Figure 10-a  
Stopper  
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C. REMOVING BLOWER MOTOR  
(Figures 11 (Top View) and 12).  
Duct (mag. exhaust)  
Blower Base  
(1) Remove screw securing the stay.  
(2) Disconnect all lead wires from the blower motor  
and H.V. capacitor.  
Thermal Protector  
Screw  
(3) Remove 3 screws securing the blower base and  
disengage 3 hooks from the rear plate of cavity  
(Figure 12).  
(4) Remove 1 screw securing the blower motor with  
the blower base.  
D. REMOVING MAGNETRON  
(Figure 11 (Top View))  
Duct (mag. intake)  
Stay  
After removing the blower motor :  
Figure 11 (Top View)  
(1) Remove duct (mag. exhaust). Remove the screw  
securing the stay.  
(2) Remove 1 screw securing the thermal protector.  
(3) Disconnect 2 lead wires from the magnetron.  
(4) Remove 4 screws securing the magnetron to the  
waveguide.  
(5) Take out Magnetron VERY CAREFULLY.  
Screw  
NOTE  
1. When removing the magnetron from the cavity or  
wave guide, use a proper care so that the dome of  
the magnetron does not hit any adjacent parts of  
microwave oven.  
2. Make sure that the contact face of the magnetron  
gasket is free from any damage or deformation.  
Hook  
3. Adjust the position of the magnetron properly, so  
that it correctly sits in place and the magnetron  
gasket is in contact with the mounting rim evenly.  
4. While holding the magnetron under this condition,  
tighten mounting screws or nuts with your fingers  
temporarily.  
5. Further tighten the screws or nuts with a box  
wrench, giving one or two turns to each of the  
screws (or nuts) alternatively so that the  
Blower Motor  
Figure 12  
magnetron is mounted on to the bracket uniformly.  
6. After replacing the magnetron, be sure to check the  
microwave energy leakage with a leakage detector  
and confirm the leakage is below 4mW/cm2.  
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E. REMOVING FUSE  
Remove the 20A fuse with a screwdriver.  
NOTE  
-- When replacing the 20A fuse, be sure to use an exact  
repair part.  
Control Base  
-- If the 20A fuse blows immediately, check the primary  
interlock switch, the relay 2 (on the control circuit board)  
and the interlock monitor switch according to,  
“CHECKOUT PROCEDURE FOR SWITCHES” on page 6.  
And make sure to check the microwave energy leakage  
according to, “1. ADJUSTMENT PROCEDURES” on page  
1, when the primary interlock switch, the relay 2 or the  
interlock monitor switch is adjusted or replaced.  
-- If the primary interlock switch, the relay 2 and the interlock  
monitor switch operate properly, determine which of the  
following is defective : control circuit board, blower motor,  
high voltage transformer, high voltage capacitor, high voltage  
diode or magnetron.  
F. REMOVING CONTROL CIRCUIT BOARD  
(See exploded view on page 18 and Figure 13)  
(1) Remove the connector S1, S102 and the connector for  
the relay 2 from the control circuit board.  
Control Frame  
Figure 13  
(2) Remove 1 screw securing the control panel complete to  
the oven cavity.  
Control Sheet  
Control Frame  
(3) Remove the FPC connector from the connector S101  
while grasping up both lever ends of the plastic fastener.  
(4) Remove 2 screws securing the control circuit board to  
the control base.  
(5) Lift up the control circuit board from its lower side and  
take it out from the control base.  
Touch Key  
Board  
G. REMOVING TOUCH KEY BOARD  
(Figure 14)  
After removing the control circuit board :  
(1) Remove control base while lifting it up at the right side  
and take it out from the control frame.  
(2) Remove control sheet which is glued to touch key board.  
(3) Remove the touch key board which is held on the control  
base bracket with the adhesive tape.  
Figure 14  
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H.REMOVING DOOR  
J. REMOVING CAVITY COVER  
                                                                                                                                   
                                                                                                                                   
                                                                                                                                     
                                                                                                                                      
                                                                                                                                      
                                                                                                                                       
                                                                                                                                        
                                                                                                                                        
                                                                                                                                           
                                                                                                                                           
                                                                                                                                              
                                                                                                                                              
                                                                                                                                                 
                                                                                                                                                 
                                                                                                                                                    
                                                                                                                                                    
                                                                                                                                                     
                                                                                                                                                     
(Figure 16)  
(1) Remove 2 hex nuts securing the upper hinge.  
(2) Tilt the top of the door toward you.  
(3) Lift up the door to remove it.  
(1) Remove a screw from the cavity compartment.  
NOTE  
- After replacing the door, be sure to check that the  
primary interlock switch, the door sensing switch  
and the interlock monitor switch operate normally.  
(See page 1).  
Cavity Cover  
- After replacing the door, check for microwave energy  
leakage with a leakage detector. Microwave energy  
leakage must be below the limit of 4mW/cm2 to  
allow for measurement uncertainty.  
Screw  
I. DISASSEMBLING DOOR  
(Figure 15)  
Figure 16  
(1) Insert a thin flat-blade screwdriver between the  
choke dielectric and the door main frame and lift  
up the choke dielectric to release hooks one by  
one. (Figure 15).  
(2) Remove the choke dielectric.  
K. REMOVING TURNTABLE MOTOR COVER  
(Figure 17)  
(3) To detach the door cover, insert a thin flat-blade  
screwdriver between door cover and door panel  
and release the projections inside door cover.  
(1) Turn over the oven on its back.  
(2) Cut the 6-joints of the bottom plate using diagonal  
pliers (nipper).  
(4) To detach the door panel, insert a thin flat-blade  
screwdriver between the door cover and door  
main frame.  
(3) Separate the motor cover from bottom plate.  
Hooks  
(4) Remove 2 screws securing turntable motor to the  
cavity and take it out.  
Note : Bent the cut joints inside slightly for safety  
and be careful of sharp edge.  
Motor Cover  
Hooks  
6 Joints  
Hooks  
Door  
Bottom Plate  
Main  
Frame  
Choke  
Dielectric  
Hooks  
Figure 15  
NOTE  
- The choke dielectric may be damaged when  
it is removed. When reinstalling it replace it  
with new ones if it is damaged.  
- After installing the door in place, check for  
microwave energy leakage with a detector.  
Microwave energy leakage must be below the  
limit of 4mW/cm2 to allow for measurement  
uncertainty.  
Figure 17  
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8. EXPLODED VIEW AND PARTS LIST  
CAVITY PARTS  
* * * ALL SERVICE ON MICROWAVE OVENS SHOULD BE PERFORMED BY A QUALIFIED TECHNICIAN USING  
APPROVED TESTING EQUIPMENT. CUSTOMERS SHOULD NOT ATTEMPT TO REPLACE PARTS IDENTIFIED  
BY A TRIPLE ASTERISK (***).  
Key  
No.  
Key  
No.  
Part No.  
Description  
Q’ty  
Part No.  
Description  
Q’ty  
1
2
3
4
5
6
7
8
617 228 8321  
411 082 5201  
411 160 6007  
617 171 6863  
411 160 6106  
617 228 8345  
617 221 3590  
411 010 5808  
617 138 5601  
617 221 6089  
411 011 0802  
617 180 6137  
411 089 2500  
Cabinet  
1
8
2
1
1
1
1
2
1
4
2
1
1
14  
15  
16  
17  
18  
19  
20  
21  
22  
23  
24  
25  
26  
617 120 8481  
617 220 9401  
617 204 9489  
617 073 5889  
617 204 9403  
617 162 1938  
411 069 1707  
411 006 6604  
617 200 0381  
617 080 5315  
Insulation Sheet  
Turn Table Shaft  
Roller Base Assy  
Rotating Tray  
AntennaComplete  
Cavity Cover  
SCR TPG TRS 4 x 6 DA  
SCR TPG PAN 3 x 6 Z1  
Thermal Fuse 167oC  
Special Washer  
1
1
1
1
1
1
1
1
1
1
SCR TPG TRS 4 x 10 Z1  
SCR TPG TRS + SRT 4 x 10 Z1  
PowerCord  
SCR S-T TRS + SRT 4 x 10 Z1  
Oven Cavity*** (Not Service Part)  
Gear Motor  
SCR EVR PAN 4 x 10 Z1  
Bottom Plate*** (Not Service Part)  
Plastic Foot with Canoe Clip  
Bolt Hex + SW + W5 x 14 Z1***  
Hinge, Lower***  
9
10  
11  
12  
13  
Washer F 5 x 10 x 0.8  
617 229 9013  
Special Screw  
2
- 15 -  
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SWITCHES AND MICROWAVE PARTS  
*** ALL SERVICE ON MICROWAVE OVENS SHOULD BE PERFORMED BY A QUALIFIED TECHNICIAN USING  
APPROVED TESTING EQUIPMENT. CUSTOMERS SHOULD NOT ATTEMPT TO REPLACE PARTS IDENTIFIED  
BY A TRIPLE ASTERISK (***).  
Key  
No.  
Key  
No.  
Part No.  
Description  
Q’ty  
Part No.  
Description  
Q’ty  
1
2
3
4
5
6
7
8
411 082 5201  
617 229 9020  
617 199 8283  
411 006 6604  
617 129 1001  
415 002 9508  
423 020 3408  
617 233 0006  
617 221 3606  
617 162 1990  
617 197 6670  
SCR TPG TRS 4 x 10 Z1  
H.V Transformer,*** N6T-P410  
Stay, Cavity & Magnetron  
SCR TPG PAN 3 x 6 Z1  
Thermostat, Magnetron 135oC  
Magnetron, 2M253H(M)N***  
Fuse, 125V 20A  
Fuse Holder  
Lead Wire Ass’y (including Diode)  
Blower Base  
H.V Capacitor including Resistor,  
0.97uf 2.2KV  
Capacitor Band  
Bolt Hex 4 x 10 Z1  
Duct, Mag. Exhaust  
9
1
1
1
1
1
1
1
1
1
1
17  
18  
19  
20  
21  
617 197 7417  
411 082 5201  
617 196 8507  
617 245 6256  
617 221 4078  
Blower Motor  
SCR TPG TRS 4 x 10 Z1  
Blower Fan  
Latch Lever***  
Micro Switch,*** Primary Interlock  
AM51630C53F2  
Micro Switch,*** Interlock Monitor  
AM50620C53  
Micro Switch,*** Door Sensing  
AM51630C53F2  
1
2
1
1
1
22  
23  
617 221 4061  
617 221 4078  
1
1
9
10  
11  
24  
25  
26  
27  
28  
29  
617 245 6096  
411 102 5907  
411 129 5805  
617 117 3505  
617 124 3796  
Lever Stopper***  
1
2
1
1
1
12  
13  
14  
15  
16  
617 182 2373  
411 011 5609  
617 229 7903  
617 005 5147  
617 230 2713  
1
4
1
1
1
SCR ETG TRS 4 x 10 N2  
SCR TPG BIN 3 x 10 Z1  
Harness, Door Sensing  
Lead Wire Ass’y  
Lamp, 120V 20W  
Lamp Socket  
- 16 -  
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DOOR PARTS  
* * * ALL SERVICE ON MICROWAVE OVENS SHOULD BE PERFORMED BY A QUALIFIED TECHNICIAN USING  
APPROVED TESTING EQUIPMENT. CUSTOMERS SHOULD NOT ATTEMPT TO REPLACE PARTS IDENTIFIED  
BY A TRIPLE ASTERISK (***).  
Key  
No.  
Key  
No.  
Part No.  
Description  
Q’ty  
Part No.  
Description  
Q’ty  
1
2
3
617 229 2403  
617 181 4170  
617 229 2007  
Door Cover***  
Door Panel***  
Door Main Frame*** (Also  
order Door Sheet when replacing  
Door Main Frame)  
1
1
1
5
6
7
8
9
10  
617 222 0123  
411 054 1903  
617 180 6151  
411 011 0802  
617 101 1494  
617 179 2478  
Door Sheet  
Nut Hex + Flg W / SRT 5***  
Hinge, Upper***  
Bolt Hex + SW + W 5 x 14***  
Spring***  
Door Latch***  
1
2
1
2
1
1
4
617 124 0948  
Choke Dielectric***  
1
- 17 -  
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CONTROL PANEL PARTS  
* * * ALL SERVICE ON MICROWAVE OVENS SHOULD BE PERFORMED BY A QUALIFIED TECHNICIAN USING  
APPROVED TESTING EQUIPMENT. CUSTOMERS SHOULD NOT ATTEMPT TO REPLACE PARTS IDENTIFIED  
BY A TRIPLE ASTERISK (***).  
Key  
No.  
Key  
No.  
Part No.  
Description  
Q’ty  
1
Part No.  
Description  
Q’ty  
1
2
3
617 230 7787  
Control Sheet*** (Also order  
Touch Key Board when replacing  
Control Sheet)  
Touch Key Board*** (Also order  
Control Sheet when replacing  
Touch Key Board)  
4
5
6
7
8
9
617 151 4377  
411 160 6205  
617 230 2324  
411 129 5805  
617 080 9559  
617 229 3691  
Control Base***  
1
1
1
1
1
1
SCR TPG TRS+SRT 4 x 10 Z1  
Power & Control Circuit Board***  
SCR TPG BIN 3 x 10 Z1  
Spring, Door Release Lever***  
Door Release Lever***  
617 233 5872  
617 229 3646  
1
1
Control Frame***  
PRINTED MATTER (Items Not Illustrated)  
Key  
Part No.  
Description  
Q’ty  
1
No.  
617 232 7594  
Operating Instructions  
(English / Spanish)  
Carton Box Complete  
NamePlate  
617 230 9095  
617 230 7664  
1
1
- 18 -  
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CONTROL CIRCUIT BOARD  
(Part No. 617 230 2324)  
- 19 -  
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CONTROL CIRCUIT BOARD  
(Part No. 617 230 2324)  
KeyNo.  
OrderPartNo.  
Description  
Q’ty  
KeyNo.  
OrderPartNo.  
Description  
Q’ty  
1
RESISTORS.  
INTEGRATED CIRCUIT  
R901,906, 401 037 5608 MT-Glaze, 10Kohms  
909  
3
1
4
1
1
2
4
1
1
2
1
5
IC11  
409 468 0209 IC LM8847B-1A43.  
+-1%, 10W.  
R903  
401 038 3603 MT-Glaze,3.3Kohms  
+-1%, 10W.  
TRANSISTORS  
R902,905, 401 038 6406 MT-Glaze,4.7Kohms  
907, 908  
R904  
Q901  
405 138 8506 TR FMA9A.  
405 035 4809 2SC1685-Q-TP.  
405 082 4609 DTA123YS-TP.  
1
1
2
+-1%, 10W.  
Q103  
401 039 0304 MT-Glaze, 820ohms  
+-1%, 10W.  
Q101,102  
R106  
401 012 4404 Carbon, 100ohms  
+-5%, 1/4W.  
R101,112 401 012 5609 Carbon,1Kohms  
+-5%, 1/4W.  
R11 14  
~
401 013 4106 Carbon, 120ohms  
+-5%, 1/4W.  
DIODES  
D11  
R58  
401 013 6308 Carbon, 12Kohms  
+-5%, 1/4W.  
407 012 0200 1N4002-TP.  
407 012 4406 1SS133-T77.  
1
7
D101 106  
~
R105  
401 016 4707 Carbon, 22Kohms  
+-5%, 1/4W.  
108  
ZD101  
ZD11  
407 132 2306 HZS3.9ENB2.  
407 056 8507 RD5.1ESB2.  
1
1
R107,108 401 016 9603 Carbon,27ohms  
+-5%, 1/4W.  
R109  
401 018 2701 Carbon, 330ohms  
+-5%, 1/4W.  
R103,104, 401 020 2805 Carbon, 47Kohms  
51 53  
~
+-5%, 1/4W.  
RESISTOR BLOCK  
CAPACITORS  
RB101  
RB902  
RB901  
617 010 3558 Resistor Network  
402 080 7700 MT-Glaze, 10K x 4  
401 083 2108 MT-Glaze, 4.7K x 7  
1
1
1
C104, 105, 403 069 1207 Ceramic, 1000PK,  
108 +-5%, 50V.  
3
3
1
1
1
C103, 106, 403 142 5306 Ceramic,0.01mfd,  
107  
+-5%, 50V.  
C101  
403 049 2606 Electrolytic,1mfd,  
+-20%, 50V.  
MISCELLANEOUS  
BZ1  
420 000 6800 Buzzer, PKM22EPT.  
1
1
1
1
1
1
1
1
1
1
C12  
C11  
403 105 3806 Electrolytic, 47mfd,  
+-20%, 10V.  
VST1  
LCD1  
RL1  
407 118 5505 Varistor ENC 471D-10A.  
617 209 2218 DisplayTube.  
403 152 7208 Electrolytic, 1000mfd,  
+-20%, 25V.  
617 201 3978 Relay,G5N-1A-DC12.  
617 141 0549 Relay, DU12D1-1PR.  
617 128 3372 CeramicOscillator.  
617 169 4109 Connector.  
RL2  
RS1  
S1  
S101  
S102  
PT1  
617 126 8959 Connector.  
617 111 1392 Connector.  
617 230 4984 Step-DownTransformer.  
P6K-P410  
2
617 178 4268 PartBase.  
617 132 5744 Noise Filter.  
617 079 4299 Jumper.  
1
2
7
JB1, 2  
J9 13  
~
16, 17  
J101 103 617 079 4237 Jumper.  
3
~
- 20 -  
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9. OVERALL CIRCUIT DIAGRAM  
- 21 -  
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