Panasonic NN-S262SF APH User manual

ORDER NO.SIMMC 0203005C1
E2
Microwave Oven
NN-S262SF / NN-S262BF / NN-S262WF / NN-S252BF / NN-
S252WF
APH(USA)
CPH(CANADA)
SPECIFICATIONS
2002 Shanghai Matsushita Microwave Oven Co., Ltd. / All rights
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Microwave Oven 1
1. FEATURE CHART 5
2. CONTROL PANEL (APH) 6
3. CONTROL PANEL (CPH) 7
4. OPERATION AND DIGITAL PROGRAMMER CIRCUIT TEST PROCEDURE 8
4.1. To set clock 8
4.2. Time cooking for two stage 9
4.3. Inverter turbo defrost 10
4.4. Inverter auto cooking 10
4.5. Popcorn 11
4.6. Auto reheat 11
4.7. Power level 12
5. SCHEMATIC DIAGRAM (APH) 12
6. SCHEMATIC DIAGRAM (CPH) 13
7. DESCRIPTION OF OPERATING SEQUENCE 14
7.1. Variable power cooking control 14
Variable Power Cooking 14
7.2. Inverter power supply circuit [NEW H.V.] 15
7.3. Inverter turbo defrost 15
Inverter Turbo Defrost 16
8. CAUTIONS TO BE OBSERVED WHEN TROUBLESHOOTING 16
8.1. Check the grounding 16
8.2. Inverter warnings [NEW H.V.] 16
8.3. When parts must be replaced, remove the power plug from the outlet. 18
8.4. When the 18 Amp fuse is blown due to the operation of short switch: 18
8.5. Avoid inserting nails, wire, etc. through any holes in the unit during operation. 18
8.6. Confirm after repair 19
9. DISASSEMBLY AND PARTS REPLACEMENT PROCEDURE 20
9.1. Magnetron 20
9.2. Digital programmer circuit (DPC) and membrane key board. 20
9.3. Low voltage transformer and/or power relays (RY1, RY2) 21
9.4. Inverter power supply (U) 22
9.5. Door assembly 24
9.6. Stirrer motor 25
9.7. Blower motor (U) 25
9.8. Fan motor A (for H.V. inverter (U) cooling) 25
9.9. Fan motor B (for magnetron cooling) 26
9.10. Turntable motor 26
10. COMPONENT TEST PROCEDURE 27
10.1. Primary latch switch, secondary (secondary latch switch and power relay B) interlocks. 27
10.2. Short switch & monitor 27
10.3. Magnetron 28
10.4. Membrane key board (Membrane switch assembly) 28
10.5. Inverter power supply (U) 28
11. MEASUREMENTS AND ADJUSTMENTS 30
11.1. Adjustment of primary latch switch, secondary latch switch and short switch. 30
11.2. Measurement of microwave output 31
TABLE (1L-1min.test) 31
12. PROCEDURE FOR MEASURING MICROWAVE ENERGY LEAKAGE 32
12.1. Equipment 32
12.2. Procedure for measuring radiation leakage 32
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12.2.1. Measurement with the outer panel removed. 33
12.2.2. Measurements with a fully assembled oven. 33
12.3. Record keeping and notification after measurement 33
12.4. At least once a year, have the radiation monitor checked for calibration by its manufacturer. 33
13. TROUBLESHOOTING GUIDE 34
13.1. Trouble related to digital programmer circuit 36
13.2. Troubleshooting of inverter circuit (U) and magnetron [NEW H.V.] 38
13.3. How to check the semiconductors using an OHM meter 38
14. EXPLODED VIEW AND PARTS LIST 39
15. PARTS LIST 39
16. DOOR ASSEMBLY 43
17. WIRING MATERIALS 43
18. ESCUTCHEON BASE ASSEMBLY 44
19. PACKING AND ACCESORIES 45
20. DIGITAL PROGRAMMER CIRCUIT 46
21. DIGITAL PROGRAMMER CIRCUIT 48
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1. FEATURE CHART
MODEL NN-S262 NN-S252
FEATURE
Five Stage Cooking O O
Inverter Turbo Defrost O O
Sensor Reheat O -
Sensor Cooking O -
Auto Reheat - O
Inverter Auto Cooking - O
Quick Min O O
Popcorn O O
Digital Clock O O
Timer O O
Child Safety Lock O O
Vent Fan O O
Cooktop Light O O
2. CONTROL PANEL (APH)
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3. CONTROL PANEL (CPH)
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4. OPERATION AND DIGITAL PROGRAMMER CIRCUIT
TEST PROCEDURE
4.1. To set clock
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