Panasonic NN-CS599S, Service Manual

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1 FEATURE CHART 5
2 CONTROL PANEL 5
3 SCHEMATIC DIAGRAM 6
4 DESCRIPTION OF OPERATING SEQUENCE 7
4.1. Variable power cooking control 7
4.2. Inverter power supply circuit 7
4.3. Steam defrost, Auto cook & Steam reheat 7
4.4. Convection & Grill Convection cooking control 7
4.5. Combination cooking control 8
4.6. Grill cooking control 8
4.7. IR reheat 9
4.8. Steam function (micro steam) 10
5 CAUTIONS TO BE OBSERVED WHEN TROUBLESHOOTING 11
5.1. Check the grounding 11
5.2. Inverter warnings 11
5.3. Confirm before repair 12
5.4. Part replacement 12
5.5. When the 10A fuse is blown due to the malfunction of the
short switch 12
5.6. Avoid inserting nails, wire etc. through any holes in the
unit during operation 12
5.7. Verification after repair 12
5.8. Sharp edges 12
5.9. Hot surface 12
6 DISASSEMBLY AND PARTS REPLACEMENT PROCEDURE 13
6.1. Magnetron 13
6.2. Digital programmer circuit (D.P.C) AU, (D.P.C.) HU, key
board membrane and power relay 14
6.3. Digital programmer circuit (D.P.C.) DU and low voltage
transformer 15
6.4. H.V. Inverter 15
6.5. Fan motor 16
6.6. Upper heaters 16
6.7. Door assembly 17
6.8. IR sensor 18
6.9. Stirrer motor 18
6.10. Pump motor 19
6.11. Heater DU (steam heater) 20
6.12. Convection motor and convection heater 21
7 COMPONENT TEST PROCEDURE 23
7.1. Primary, Secondary Latch Switch interlocks & Power
Relay RY1 23
7.2. Short Switch 23
7.3. Magnetron 23
7.4. Membrane key board (Membrane switch assembly) 23
7.5. Inverter power supply (U) 24
7.6. Temperature thermistor 24
7.7. IR sensor 24
8 MEASUREMENTS AND ADJUSTMENTS 25
8.1. Adjustment of Primary latch switch, Secondary latch
switch and Short switch. 25
8.2. Measurement of microwave output 25
9 TROUBLESHOOTING GUIDE 26
9.1. (Troubleshooting) Oven stops operation during cooking 27
9.2. (Troubleshooting) Other problems 28
9.3. Troubleshooting of inverter circuit (U) and magnetron 29
9.4. Trouble related to Digital Programmer Circuit 30
9.5. Simple way of H.V. Inverter/magnetron troubleshooting 30
9.6. How to check the semiconductors using an OHM meter 31
9.7. H.V. Inverter main parts list (F606YM300BP) 31
10 EXPLODED VIEW AND PARTS LIST 32
10.1. EXPLODED VIEW 32
10.2. PARTS LIST 33
10.3. WATER TANK ASSEMBLY 35
10.4. ESCUTCHEON BASE ASSEMBLY 36
10.5. DOOR ASSEMBLY 37
10.6. WIRING MATERIALS 38
10.7. PACKING AND ACCESSORIES 39
11 DIGITAL PROGRAMMER CIRCUIT 40
11.1. SCHEMATIC DIAGRAM 40
11.2. PARTS LIST 42
CONTENTS
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NN-CS599S