Panasonic NN-GD693S, Руководство по обслуживанию

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1 SCHEMATIC DIAGRAM 5
2 DESCRIPTION OF OPERATING SEQUENCE 6
2.1. Variable power cooking control 6
2.2. Inverter power supply circuit 6
2.3. Inverter defrost 6
2.4. Sensor cooking 6
2.5. Sensor reheat 7
2.6. Steam sensor and digital programmer circuit 7
2.7. Thermistor 7
3 CAUTIONS TO BE OBSERVED WHEN TROUBLESHOOTING 8
3.1. Check the grounding 8
3.2. Inverter warnings 8
3.3. Part replacement. 9
3.4. When the 20A fuse is blown due to the malfunction of the
monitor switch: 9
3.5. Avoid inserting nails, wire etc. through any holes in the
unit during operation. 9
3.6. Verification after repair 9
3.7. Sharp edges 9
4 DISASSEMBLY AND PARTS REPLACEMENT PROCEDURE 10
4.1. Magnetron 10
4.2. Digital programmer circuit (D.P.C) 10
4.3. Low voltage transformer and/or power relays (RY1, RY2)
11
4.4. Fan motor 11
4.5. Door assembly 11
4.6. Turntable motor 13
4.7. Quartz heater 13
4.8. Steam sensor 14
4.9. Inverter power supply 15
5 COMPONENT TEST PROCEDURE 16
5.1. Primary, Secondary Interlock Switch & Power Relay RY1
16
5.2. Monitor Switch 16
5.3. Magnetron 16
5.4. Inverter power supply (U) 17
5.5. Temperature thermistor 17
6 MEASUREMENTS AND ADJUSTMENTS 18
6.1. Adjustment of primary interlock switch, secondary interlock
switch and monitor switch. 18
6.2. Measurement of microwave output 18
7 PROCEDURE FOR MEASURING MICROWAVE ENERGY
LEAKAGE 19
7.1. Equipment 19
7.2. Procedure for measuring radiation leakage 19
7.3. Record keeping and notification after measurement 19
7.4. At least once a year, have the radiation monitor checked
for calibration by its manufacturer. 20
8 TROUBLESHOOTING GUIDE 21
8.1. (Troubleshooting) Oven stops operation during cooking 22
8.2. (Troubleshooting) Other problems 23
8.3. Troubleshooting of inverter circuit (U) and magnetron 24
8.4. Trouble related to Digital Programmer Circuit 25
8.5. SIMPLE WAY OF H.V. INVERTER/MAGNETRON
TROUBLESHOOTING 26
8.6. H.V.INVERTER BOARD MAIN PARTS LIST
(F606Y9X90AP) 26
8.7. How to check the semiconductors using an OHM meter 27
9 EXPLODED VIEW AND PARTS LIST 28
9.1. EXPLODED VIEW 28
9.2. PARTS LIST 29
9.3. ESCUTCHEON BASE ASSEMBLY 31
9.4. DOOR ASSEMBLY 32
9.5. WIRING MATERIALS 33
9.6. PACKING AND ACCESSORIES 34
10 DIGITAL PROGRAMMER CIRCUIT 35
10.1. SCHEMATIC DIAGRAM 35
10.2. PARTS LIST 37
CONTENTS
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NN-GD693S