3
TABLE OF CONTENTS
1.
CONTROL PANELS ................................................................................................................................................. 4
2.
OPERATION AND DIGITAL PROGRAMMER CIRCUIT TEST PROCEDURE ....................................................... 5
3.
SCHEMATIC DIAGRAM........................................................................................................................................... 8
4.
DESCRIPTION OF OPERATING SEQUENCE ........................................................................................................ 9
4.1
Variable power cooking control ........................................................................................................................ 9
4.2
Grill cooking ..................................................................................................................................................... 9
4.3
Combination cooking........................................................................................................................................ 9
4.4
Autoweight defrost, autoweight cook ............................................................................................................... 9
4.5
Auto Sensor cook NN-V689WB ..................................................................................................................... 10
5.
CAUTIONS TO BE OBSERVED WHEN TROUBLESHOOTING........................................................................... 11
5.1
Check the grounding ...................................................................................................................................... 11
5.2
Inverter Warnings .......................................................................................................................................... 11
5.3
When parts must be replaced, remove the power plug from the outlet.......................................................... 12
5.4
When the 10A fuse is blown due to the operation of short switch:................................................................. 12
5.5
Avoid inserting nails, wire, etc. through any holes in the unit during operation.............................................. 12
5.6
Confirm after repair ........................................................................................................................................ 12
6.
DISASSEMBLY AND PARTS REPLACEMENT PROCEDURE ............................................................................ 13
6.1
Magnetron ...................................................................................................................................................... 13
6.2
Inverter Power Supply(U) .............................................................................................................................. 13
6.3
Digital Programmer Circuit (DPC) and membrane key board. ....................................................................... 14
6.4
Low voltage transformer and/or power relays (RY1)...................................................................................... 14
6.5
Fan Motor....................................................................................................................................................... 14
6.6
Door disassembly........................................................................................................................................... 15
6.7
Turntable motor.............................................................................................................................................. 15
6.8
Quartz heater ................................................................................................................................................. 15
6.9
Steam Sensor NN-V689WB........................................................................................................................... 16
7.
COMPONENT TEST PROCEDURE....................................................................................................................... 17
7.1
Primary Latch Switch, Secondary (Secondary Latch Switch and Power Relay B) Interlocks. ....................... 17
7.2
Short Switch & Monitor Circuit ...................................................................................................................... 17
7.3
Magnetron ...................................................................................................................................................... 17
7.4
Push button key board ................................................................................................................................... 17
7.5
Inverter Power Supply (U).............................................................................................................................. 18
7.6
Inverter Power supply (U) ............................................................................................................................. 18
7.7
Steam Sensor and digital programmer circuit ................................................................................................ 18
8.
MEASUREMENTS AND ADJUSTMENTS ............................................................................................................. 19
8.1
Installation of Primary latch switch, Secondary latch switch and Short switch............................................... 19
8.2
Measurement of microwave output ................................................................................................................ 19
9.
TROUBLESHOOTING GUIDE .............................................................................................................................. 20
10. EXPLODED VIEW AND PARTS LIST ................................................................................................................... 24
11. PARTS LISTS ......................................................................................................................................................... 25
12. DOOR ASSEMBLY ................................................................................................................................................ 26
13. ESCUTCHEON BASE ASSEMBLY ....................................................................................................................... 27
14. PACKING AND ACCESSORIES............................................................................................................................ 28
15. TRIM KIT PARTS LIST........................................................................................................................................... 29
16. DIGITAL PROGRAMMER CIRCUIT ...................................................................................................................... 30
17. DIGITAL PROGRAMMER CIRCUIT - PARTS LIST .............................................................................................. 32
FEATURE CHART
FEATURES
NN-V659 NN-V629
NN-V689
Microwave
6
6
Grill
3
3
Combination
3x3
3 x 3
Weight Defrost
3
3
Weight Combination
10
-
Stage Cooking
3 stage
3 stage
Delay Stand
Yes
Yes
Clock
12 Hrs
12 Hrs
Word Prompt
English
English
Weight Reheat
2
-
Weight Cook
2
-
Sensor Reheat
-
2
Sensor Cook
-
6
Sensor Combination
-
6
Содержание NN-V659WB
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