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1. Discharge high voltage before touching Inverter PCB.
1. Unplug oven and leave it for more than 30 seconds before
removing outer cabinet.
2. Use insulated lead wire to short across D701 Anode to
D702
Cathode
or
short
across
magnetron
filament
terminals to the chassis ground. Please refer to service
manual for detail of the specified model.
2. Remove inverter PCB from oven before troubleshooting.
Refer to related service manual for inverter PCB removal.
1. Visual check:
a. PCB board: Any crack on board, burnt printed copper
foil pattern? Any cockroach, bugs excrements, any mark
of wet?
b. Components: Any damaged components? Any burnt,
broken or missing?
3. Check component by circuit tester.
24
NN-V690P / NN-V690PS / NN-V680W / NN-V680WS
Содержание NN-V680W
Страница 3: ...20 INVERTER CIRCUIT 43 21 REF NO 35 INVERTER U 44 3 NN V690P NN V690PS NN V680W NN V680W ...
Страница 4: ...1 CONTROL PANEL 4 NN V690P NN V690PS NN V680W NN V680WS ...
Страница 5: ...2 OPERATION AND DIGITAL PROGRAMMER CIRCUIT TEST PROCEDURE 5 NN V690P NN V690PS NN V680W NN V680W ...
Страница 6: ...6 NN V690P NN V690PS NN V680W NN V680WS ...
Страница 8: ...3 2 SCHEMATIC DIAGRAM XNE ZPE 8 NN V690P NN V690PS NN V680W NN V680WS ...
Страница 17: ...17 NN V690P NN V690PS NN V680W NN V680W ...
Страница 22: ...9 TROUBLESHOOTING GUIDE NEW H V 22 NN V690P NN V690PS NN V680W NN V680WS ...
Страница 23: ...23 NN V690P NN V690PS NN V680W NN V680W ...
Страница 27: ...10 HOW TO CHECK THE SEMICONDUCTORS USING AN OHM METER 27 NN V690P NN V690PS NN V680W NN V680W ...
Страница 30: ...12 EXPLODED VIEW AND PARTS LIST 30 NN V690P NN V690PS NN V680W NN V680WS ...
Страница 39: ...18 DIGITAL PROGRAMMER CIRCUIT SCHEMATIC DIAGRAM 39 NN V690P NN V690PS NN V680W NN V680W ...
Страница 40: ...40 NN V690P NN V690PS NN V680W NN V680WS ...
Страница 43: ...20 INVERTER CIRCUIT SCHEMATIC DIAGRAM 43 NN V690P NN V690PS NN V680W NN V680W ...