Panasonic INVERTER NN-H665, Руководство по обслуживанию, Страница: 4 / 49

1 SCHEMATIC DIAGRAM 5
1.1. APH 5
1.2. CPH 6
1.3. RPH 7
2 DESCRIPTION OF OPERATING SEQUENCE 8
2.1. Variable power cooking control 8
2.2. Inverter power supply circuit NEW H.V. 8
2.3. Inverter defrost 8
2.4. Sensor cooking (Only for sensor models) 8
2.5. Sensor reheat (Only for sensor models) 9
2.6. Steam sensor and digital programmer circuit (Only for
sensor models) 9
2.7. Thermistor 9
3 CAUTIONS TO BE OBSERVED WHEN TROUBLESHOOTING 10
3.1. Check the grounding 10
3.2. Inverter warnings 10
3.3. Part replacement. 11
3.4. When the 20A fuse is blown due to the operation of the
short switch: 11
3.5. Avoid inserting nails, wire etc. through any holes in the
unit during operation. 11
3.6. Confirm after repair 11
3.7. Sharp edges 11
4 DISASSEMBLY AND PARTS REPLACEMENT PROCEDURE 12
4.1. Magnetron 12
4.2. Digital programmer circuit (D.P.C) 12
4.3. Low voltage transformer and/or power relays (RY1, RY2)
13
4.4. Fan motor 13
4.5. Door assembly 13
4.6. Turntable motor 14
4.7. Steam sensor 14
4.8. Inverter power supply 15
5 COMPONENT TEST PROCEDURE 16
5.1. Primary latch switch (door switch and power relay B)
interlocks. 16
5.2. Short switch & monitor 16
5.3. Magnetron 16
5.4. Membrane key board (Membrane switch assembly) 16
5.5. Inverter power supply (U) 17
6 MEASUREMENTS AND ADJUSTMENTS 18
6.1. Adjustment of primary latch switch, secondary latch switch
and short 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. 19
8 TROUBLESHOOTING GUIDE 20
8.1. (Trouble) Oven stops operation during cooking 20
8.2. Troubleshooting of inverter circuit (U) and magnetron
NEW H.V. 22
8.3. Simple way of H.V. Inverter/magnetron troubleshooting 23
8.4. How to check the semiconductors using an OHM meter 23
9 EXPLODED VIEW AND PARTS LIST 24
9.1. EXPLODED VIEW 24
9.2. PARTS LIST 25
9.3. DOOR ASSEMBLY 27
9.4. ESCUTCHEON BASE ASSEMBLY 28
9.5. PACKING AND ACCESSORIES 33
9.6. WIRING MATERIALS 34
10 DIGITAL PROGRAMMER CIRCUIT 35
10.1. NN-T695SF APH/CPH, T695SF/SM RPH 35
10.2. NN-T685SF APH/CPH, T675SF APH 37
10.3. NN-T665SF APH, T655SF APH, T664SFR APH 39
10.4. NN-H665 APH/CPH, H635 APH, S655 APH, S645 APH,
S615 CPH 41
10.5. NN-H645 APH, S635 APH/CPH, H625 APH, S625 CPH,
S605 CPH, S505 APH/CPH, S655 RPH, S645 RPH,
H624*FR APH, H504*FR APH 43
10.6. PARTS LIST 45
CONTENTS
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NN-T695 NN-T685SF