Table Of Contents - Panasonic NN-DF383B Service Manual

NN-DF383B
CONTENTS
1 SCHEMATIC DIAGRAM
2 DESCRIPTION OF OPERATING SEQUENCE
2.1. Variable power cooking control
2.2. Inverter power supply circuit
2.3. Turbo defrost, Auto cook
2.4. Sensor cooking
2.5. Steam sensor and digital programmer circuit
2.6. Grill cooking control
2.7. Combination Cooking
2.8. Oven cooking control
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 10A fuse is blown due to the malfunction of the
short 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. H.V. Inverter
4.2. Magnetron
4.3. Digital programmer circuit (D.P.C) & Membrane Sheet
4.4. Low voltage transformer and/or power relays
4.5. Fan motor
4.6. Upper Heater (Heater BU)
4.7. Door assembly
4.8. Stirrer motor
4.9. Lower Heater (Heater AU)
5 COMPONENT TEST PROCEDURE
Page
5 5.1. Primary, Secondary Latch Switch interlocks & Power
6 Relay RY1
6 5.2. Short Switch
6 5.3. Magnetron
6 5.4. key board membrane (Membrane switch assembly)
6 5.5. Inverter power supply (U)
7 5.6. Temperature thermistor
7 6 MEASUREMENTS AND ADJUSTMENTS
7 6.1. Adjustment of Primary latch switch, Secondary latch
7 switch and Short switch.
6.2. Measurement of microwave output
8 7 TROUBLESHOOTING GUIDE
8 7.1. (Troubleshooting) Oven stops operation during cooking 26
9 7.2. (Troubleshooting) Other problems
7.3. Troubleshooting of inverter circuit (U) and magnetron
9 7.4. Trouble related to Digital Programmer Circuit
7.5. Simple way of H.V. Inverter/magnetron troubleshooting 30
9
7.6. How to check the semiconductors using an OHM meter 30
9 7.7. H.V. INVERTER MAIN PARTS LIST
9 (F606YBA00QP/F606YBA00HP)
8 EXPLODED VIEW AND PARTS LIST
10 8.1. EXPLODED VIEW
12 8.2. PARTS LIST
13 8.3. ESCUTCHEON BASE ASSEMBLY
15 8.4. DOOR ASSEMBLY
15 8.5. WIRING MATERIALS
16 8.6. PACKING AND ACCESSORIES
16 9 DIGITAL PROGRAMMER CIRCUIT
18 9.1. SCHEMATIC DIAGRAM
18 9.2. PARTS LIST
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