Table Of Contents - Panasonic NN-SD985S Service Manual

NN-SE995S / NN-SD985S / NN-ST965S
CONTENTS
1 SCHEMATIC DIAGRAM
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
2.5. Sensor reheat
2.6. Steam sensor and digital programmer circuit
3 CAUTIONS TO BE OBSERVED WHEN TROUBLESHOOTING 8
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
interlock monitor 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 DISASSEMBLY AND PARTS REPLACEMENT PROCEDURE 10
4.1. Magnetron
4.2. Digital programmer circuit (D.P.C)
4.3. Low voltage transformer and/or power relays RL1
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, Secondary Interlock Switch & Power Relay RL1
5.2. Interlock Monitor Switch
5.3. Magnetron
5.4. Inverter power supply (U)
5.5. Temperature thermistor
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5 6 MEASUREMENTS AND ADJUSTMENTS
6 6.1. Adjustment of primary interlock switch, secondary interlock
6 switch and interlock monitor switch.
6 6.2. Measurement of microwave output
6 7 PROCEDURE FOR MEASURING MICROWAVE ENERGY
6 LEAKAGE
7 7.1. Equipment
7 7.2. Procedure for measuring radiation leakage
7.3. Record keeping and notification after measurement
8 7.4. At least once a year, have the radiation monitor checked
8 for calibration by its manufacturer.
9 8 TROUBLESHOOTING GUIDE
8.1. (Troubleshooting) Oven stops operation during cooking 20
9 8.2. (Troubleshooting) Other problems
8.3. Troubleshooting of inverter circuit (U) and magnetron
9 8.4. Trouble related to Digital Programmer Circuit
9 8.5. SIMPLE WAY OF H.V. INVERTER/MAGNETRON
9 TROUBLESHOOTING
8.6. H.V.INVERTER BOARD MAIN PARTS LIST
10 (F606Y9X90AP)
10 8.7. How to check the semiconductors using an OHM meter 27
11 9 EXPLODED VIEW AND PARTS LIST
11 9.1. EXPLODED VIEW
11 9.2. PARTS LIST
12 9.3. ESCUTCHEON BASE ASSEMBLY
12 9.4. DOOR ASSEMBLY
13 9.5. WIRING MATERIALS
14 9.6. PACKING AND ACCESSORIES
10 DIGITAL PROGRAMMER CIRCUIT
14 10.1. SCHEMATIC DIAGRAM (NN-SE995S)
14 10.2. SCHEMATIC DIAGRAM (NN-ST965S)
14 10.3. SCHEMATIC DIAGRAM (NN-SD985S)
15 10.4. PARTS LIST
15
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