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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Page
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NN-CS599S
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