Table Of Contents - Panasonic NN-SD291S Service Manual

NN-SD291S / NN-SD291W
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
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
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 Interlock Switch & Power Relay RY1
4.2. Monitor 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 interlock switch, secondary interlock
6 switch and monitor switch.
6 5.2. Measurement of microwave output
6 6 PROCEDURE FOR MEASURING MICROWAVE ENERGY
6 LEAKAGE
6 6.1. Equipment
7 6.2. Procedure for measuring radiation leakage
6.3. Record keeping and notification after measurement
8 6.4. At least once a year, have the radiation monitor checked
8 for calibration by its manufacturer.
9 7 TROUBLESHOOTING GUIDE
7.1. Troubleshooting of inverter circuit (U) and magnetron
9
7.2. SIMPLE WAY OF H.V. INVERTER/MAGNETRON
TROUBLESHOOTING
9 7.3. H.V.INVERTER BOARD MAIN PARTS LIST
9 (F606Y8X00AP)
9 8 EXPLODED VIEW AND PARTS LIST
10 8.1. EXPLODED VIEW
8.2. PARTS LIST
10 8.3. DOOR ASSEMBLY
10 8.4. ESCUTCHEON BASE ASSEMBLY
10 8.5. PACKING AND ACCESSORIES
11 8.6. WIRING MATERIALS
11 9 DIGITAL PROGRAMMER CIRCUIT
12 9.1. SCHEMATIC DIAGRAM
9.2. PARTS LIST
4
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