Table Of Contents - Panasonic NN-GD391S Service Manual

NN-GD391S / NN-GD371M
CONTENTS
1 FEATURE CHART
2 CONTROL PANEL
3 SCHEMATIC DIAGRAM
3.1. NN-GD371M KTE/PTE
3.2. NN-GD391S ZPE, GD371M ZPE
4 DESCRIPTION OF OPERATING SEQUENCE
4.1. Variable power cooking control
4.2. Inverter power supply circuit
4.3. Turbo defrost, Auto cook
4.4. Grill cooking control
4.5. Combination Cooking
5 CAUTIONS TO BE OBSERVED WHEN TROUBLESHOOTING 9
5.1. Check the grounding
5.2. Inverter warnings
5.3. Part replacement.
5.4. When the 10A fuse is blown due to the malfunction of the
short switch:
5.5. Avoid inserting nails, wire etc. through any holes in the
unit during operation.
5.6. Verification after repair
5.7. Sharp edges
6 DISASSEMBLY AND PARTS REPLACEMENT PROCEDURE 11
6.1. Magnetron
6.2. Digital programmer circuit (D.P.C)
6.3. Low voltage transformer and/or power relays (RY1)
6.4. DC fan motor
6.5. Door assembly
6.6. Turntable motor
6.7. Quartz heater
6.8. H.V. Inverter Power Supply
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5 7 COMPONENT TEST PROCEDURE
5 7.1. Primary, Secondary Latch Switch interlocks & Power
6 Relay RY1
6 7.2. Short switch & monitor
7 7.3. Magnetron
8 7.4. DC fan motor
8 7.5. Inverter power supply (U)
8 7.6. Temperature thermistor
8 8 MEASUREMENTS AND ADJUSTMENTS
8 8.1. Adjustment of Primary latch switch, Secondary latch
8 switch and Short switch.
8.2. Measurement of microwave output
9 9 TROUBLESHOOTING GUIDE
9 9.1. (Troubleshooting) Oven stops operation during cooking 20
10 9.2. Troubleshooting of inverter circuit (U) and magnetron
9.3. Trouble related to Digital Programmer Circuit
10 9.4. Simple way of H.V. Inverter/magnetron troubleshooting 24
9.5. How to check the semiconductors using an OHM meter 24
10 9.6. H.V. INVERTER MAIN PARTS LIST (F606YBA00GP)
10 10 EXPLODED VIEW AND PARTS LIST
10 10.1. EXPLODED VIEW
10.2. PARTS LIST
11 10.3. ESCUTCHEON BASE ASSEMBLY
11 10.4. DOOR ASSEMBLY
12 10.5. WIRING MATERIALS
12 10.6. PACKING AND ACCESSORIES
13 11 DIGITAL PROGRAMMER CIRCUIT
14 11.1. SCHEMATIC DIAGRAM
15 11.2. PARTS LIST
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