Table Of Contents - Panasonic NN-T695 Service Manual

NN-T695 NN-T685SF
CONTENTS
1 SCHEMATIC DIAGRAM
1.1. APH
1.2. CPH
1.3. RPH
2 DESCRIPTION OF OPERATING SEQUENCE
2.1. Variable power cooking control
2.2. Inverter power supply circuit NEW H.V.
2.3. Inverter defrost
2.4. Sensor cooking (Only for sensor models)
2.5. Sensor reheat (Only for sensor models)
2.6. Steam sensor and digital programmer circuit (Only for
sensor models)
2.7. Thermistor
3 CAUTIONS TO BE OBSERVED WHEN TROUBLESHOOTING 10
3.1. Check the grounding
3.2. Inverter warnings
3.3. Part replacement.
3.4. When the 20A fuse is blown due to the operation of the
short switch:
3.5. Avoid inserting nails, wire etc. through any holes in the
unit during operation.
3.6. Confirm after repair
3.7. Sharp edges
4 DISASSEMBLY AND PARTS REPLACEMENT PROCEDURE 12
4.1. Magnetron
4.2. Digital programmer circuit (D.P.C)
4.3. Low voltage transformer and/or power relays (RY1, RY2)
4.4. Fan motor
4.5. Door assembly
4.6. Turntable motor
4.7. Steam sensor
4.8. Inverter power supply
5 COMPONENT TEST PROCEDURE
5.1. Primary latch switch (door switch and power relay B)
interlocks.
5.2. Short switch & monitor
Page
5 5.3. Magnetron
5 5.4. Membrane key board (Membrane switch assembly)
6 5.5. Inverter power supply (U)
7 6 MEASUREMENTS AND ADJUSTMENTS
8 6.1. Adjustment of primary latch switch, secondary latch switch
8 and short switch.
8 6.2. Measurement of microwave output
8 7 PROCEDURE FOR MEASURING MICROWAVE ENERGY
8 LEAKAGE
9 7.1. Equipment
7.2. Procedure for measuring radiation leakage
9 7.3. Record keeping and notification after measurement
9 7.4. At least once a year, have the radiation monitor checked
for calibration by its manufacturer.
10 8 TROUBLESHOOTING GUIDE
10 8.1. (Trouble) Oven stops operation during cooking
11 8.2. Troubleshooting of inverter circuit (U) and magnetron
NEW H.V.
11 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
11
11 9.1. EXPLODED VIEW
11 9.2. PARTS LIST
9.3. DOOR ASSEMBLY
12 9.4. ESCUTCHEON BASE ASSEMBLY
12 9.5. PACKING AND ACCESSORIES
9.6. WIRING MATERIALS
13 10 DIGITAL PROGRAMMER CIRCUIT
13 10.1. NN-T695SF APH/CPH, T695SF/SM RPH
13 10.2. NN-T685SF APH/CPH, T675SF APH
14 10.3. NN-T665SF APH, T655SF APH, T664SFR APH
14 10.4. NN-H665 APH/CPH, H635 APH, S655 APH, S645 APH,
15 S615 CPH
16 10.5. NN-H645 APH, S635 APH/CPH, H625 APH, S625 CPH,
S605 CPH, S505 APH/CPH, S655 RPH, S645 RPH,
16 H624*FR APH, H504*FR APH
16 10.6. PARTS LIST
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