Table Of Contents - Panasonic NN-SD297SR Service Manual

NN-SD297SR
CONTENTS
1 SCHEMATIC DIAGRAM
1.1. NN-SD297SR/BR/WR, P295SFR/WFR
1.2. SD277SR/BR/WR
1.3. NN-SA247SR, S245WFR
1.4. NN-S255WFR
2 DESCRIPTION OF OPERATING SEQUENCE
2.1. Variable power cooking control
2.2. Inverter power supply circuit
2.3. Inverter defrost
2.4. Sensor cooking (Only for sensor models)
2.5. Sensor reheat (Only for sensor models)
3 CAUTIONS TO BE OBSERVED WHEN TROUBLESHOOTING 11
3.1. Check the grounding
3.2. Inverter warnings
3.3. Part replacement.
3.4. When the 20A fuse is blown due to the malfunction of the
monitor interlock switch:
3.5. Avoid inserting nails, wire etc. through any holes in the
unit during operation.
3.6. Verification after repair
3.7. Sharp edges
4 COMPONENT TEST PROCEDURE
4.1. Primary, Secondary Latch Switch interlocks & Power
Relay RY1
4.2. Monitor Interlock Switch
4.3. Magnetron
4.4. Inverter power supply (U)
4.5. Humidity sensor
5 MEASUREMENTS AND ADJUSTMENTS
Page
5 5.1. Adjustment of primary latch switch, secondary latch switch
5 and monitor interlock switch.
6 5.2. Measurement of microwave output
7 6 PROCEDURE FOR MEASURING MICROWAVE ENERGY
8 LEAKAGE
9 6.1. Equipment
9 6.2. Procedure for measuring radiation leakage
9 6.3. Record keeping and notification after measurement
9 6.4. At least once a year, have the radiation monitor checked
9 for calibration by its manufacturer.
10 7 TROUBLESHOOTING GUIDE
7.1. Troubleshooting of inverter circuit (U) and magnetron
11 7.2. SIMPLE WAY OF H.V. INVERTER/MAGNETRON
11 TROUBLESHOOTING
12 7.3. H.V.INVERTER BOARD MAIN PARTS LIST
(F606Y8X00AP)
12 8 EXPLODED VIEW AND PARTS LIST
8.1. EXPLODED VIEW
12 8.2. PARTS LIST
12 8.3. DOOR ASSEMBLY
12 8.4. ESCUTCHEON BASE ASSEMBLY
13 8.5. PACKING AND ACCESSORIES
8.6. WIRING MATERIALS
13 9 DIGITAL PROGRAMMER CIRCUIT
13 9.1. NN-SD297SR/BR/WR CPH
13 9.2. NN-P295SFR/WFR CPH
14 9.3. NN-SD277SR/BR/WR CPH, S255WFR CPH
14 9.4. NN-SA247SR CPH, S245WFR CPH
15 9.5. PARTS LIST
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