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
4
NN-GS597M
Summary of Contents for NN-GS597M
Page 2: ...2 NN GS597M ...
Page 3: ...3 NN GS597M ...
Page 5: ...1 FEATURE CHART 2 CONTROL PANEL 5 NN GS597M ...
Page 6: ...3 SCHEMATIC DIAGRAM 6 NN GS597M ...
Page 29: ...10 EXPLODED VIEW AND PARTS LIST 10 1 EXPLODED VIEW 29 NN GS597M ...
Page 36: ...11 DIGITAL PROGRAMMER CIRCUIT 11 1 SCHEMATIC DIAGRAM 36 NN GS597M ...
Page 37: ...37 NN GS597M ...
