Panasonic NN-GS597M User manual

© 2007 Panasonic Home Appliances Microwave
Oven (Shanghai) Co., Ltd. All rights reserved.
Unauthorized copying and distribution is a violation
of law.
NN-GS597M
HPE(Hong Kong)
YPQ(Singapore)
MPQ(Malaysia)
TPE(Thailand, Indonesia)
YTE(Others)
KTE(UAE)
PTE(Iran)
KPQ(Kuwait, Doha, Qatar, Oman, Bahrein, Pakistan)
ZPE(CIS Countries)
Microwave Oven
ORDER NO.PHAMOS0708040C3

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NN-GS597M

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NN-GS597M

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. Oven 7
4.5. Combination cook control 8
4.6. IR reheat 8
4.7. Steam function (Steam & Micro Power) 9
5 CAUTIONS TO BE OBSERVED WHEN TROUBLESHOOTING
10
5.1. Check the grounding 10
5.2. Inverter warnings 10
5.3. Confirm before repair 11
5.4. Part replacement 11
5.5. When the 10A fuse is blown due to the malfunction of the
short switch 11
5.6. Avoid inserting nails, wire etc. through any holes in the
unit during operation 11
5.7. Verification after repair 11
5.8. Sharp edges 11
5.9. Hot surface 11
6 DISASSEMBLY AND PARTS REPLACEMENT PROCEDURE
12
6.1. Magnetron 12
6.2. Digital programmer circuit (D.P.C.) DU and low voltage
transformer 13
6.3. Digital programmer circuit (D.P.C) AU, (D.P.C.) HU,
membrane key board and power relay 14
6.4. Fan motor 14
6.5. H.V. Inverter 15
6.6. Upper heater 15
6.7. Door assembly 16
6.8. Pump 17
6.9. IR sensor 18
6.10. Stirrer motor 18
6.11. Heater DU (steam heater) 19
7 COMPONENT TEST PROCEDURE 20
7.1. Primary latch switch Secondary Latch switch and power
relay RY3 20
7.2. Short switch & monitor 20
7.3. Magnetron 20
7.4. Membrane key board (Membrane switch assembly) 20
7.5. Inverter power supply (U) 21
7.6. Temperature thermistor 21
7.7. IR Sensor 21
8 MEASUREMENTS AND ADJUSTMENTS 22
8.1. Adjustment of Primary latch switch, Secondary latch
switch and Short switch. 22
8.2. Measurement of microwave output 22
9 TROUBLESHOOTING GUIDE 23
9.1. (Troubleshooting) Oven stops operation during cooking
24
9.2. (Troubleshooting) Other problems 25
9.3. Troubleshooting of inverter circuit (U) and magnetron 26
9.4. Trouble related to Digital Programmer Circuit 27
9.5. Simple way of H.V. Inverter/magnetron troubleshooting
27
9.6. How to check the semiconductors using an OHM meter
28
9.7. H.V. Inverter main parts list 28
10 EXPLODED VIEW AND PARTS LIST 29
10.1. EXPLODED VIEW 29
10.2. PARTS LIST 30
10.3. WATER TANK ASSEMBLY 32
10.4. ESCUTCHEON BASE ASSEMBLY 33
10.5. DOOR ASSEMBLY 34
10.6. WIRING MATERIALS 34
10.7. PACKING AND ACCESSORIES 35
11 DIGITAL PROGRAMMER CIRCUIT 36
11.1. SCHEMATIC DIAGRAM 36
11.2. PARTS LIST 38
CONTENTS
Page Page
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NN-GS597M

1 FEATURE CHART
2 CONTROL PANEL
5
NN-GS597M