Table Of Contents - Panasonic NN-CS596S BPQ Service Manual

NN-CS596S
CONTENTS
1 SCHEMATIC DIAGRAM
1.1. BPQ/EPG
1.2. WPG/SPG
2 DESCRIPTION OF OPERATING SEQUENCE
2.1. Variable power cooking control
2.2. Inverter power supply circuit NEW H.V.
2.3. Auto cooking
2.4. Convection & Grill Convection cooking control
2.5. Steam function (micro steam)
3 CAUTIONS TO BE OBSERVED WHEN TROUBLESHOOTING 9
3.1. Check the grounding
3.2. Inverter warnings
3.3. Confirm before repair
3.4. Part replacement
3.5. When the 10A/15A fuse is blown due to the operation of
the short switch
3.6. Avoid inserting nails, wire etc. through any holes in the
unit during operation
3.7. Confirm after repair
3.8. Sharp edges
4 DISASSEMBLY AND PARTS REPLACEMENT PROCEDURE 11
4.1. Magnetron
4.2. Digital programmer circuit (D.P.C) AU, (D.P.C.) HU,
membrane key board and power relay
4.3. Digital programmer circuit (D.P.C.) DU and low voltage
transformer
4.4. H.V. Inverter
4.5. Upper heaters
4.6. Door assembly
4.7. Fan motor
4.8. Pump
4.9. Stir motor
4.10. Heater DU (steam heater)
Page
5 4.11. Convection motor and convection heater
5 4.12. Circuit breaker
6 5 COMPONENT TEST PROCEDURE
7 5.1. Primary latch switch (door switch and power relay B)
7 interlocks
7 5.2. Short switch & monitor
7 5.3. Magnetron
7 5.4. Membrane key board (Membrane switch assembly)
8 5.5. Inverter power supply (U)
5.6. Temperature thermistor
9 5.7. Circuit breaker
9 6 MEASUREMENTS AND ADJUSTMENTS
10 6.1. Adjustment of Primary latch switch, Secondary latch
10 switch and Short switch.
6.2. Measurement of microwave output
10 7 TROUBLESHOOTING GUIDE
7.1. (Troubleshooting) Oven stops operation during cooking 24
10 7.2. (Troubleshooting) Other problems
10 7.3. Troubleshooting of inverter circuit (U) and magnetron
10 NEW H.V.
7.4. Simple way of H.V. Inverter/magnetron troubleshooting 27
11 7.5. How to check the semiconductors using an OHM meter 27
8 EXPLODED VIEW AND PARTS LIST
12 8.1. EXPLODED VIEW
8.2. PARTS LIST
12 8.3. WATER TANK ASSEMBLY
13 8.4. ESCUTCHEON BASE ASSEMBLY
13 8.5. DOOR ASSEMBLY
14 8.6. WIRING MATERIALS
14 8.7. PACKING AND ACCESSORIES
15 9 DIGITAL PROGRAMMER CIRCUIT
16 9.1. SCHEMATIC DIAGRAM
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