6.1. Magnetron
1. Discharge high voltage capacitors.
2. Remove A screw holding magnetron on bracket.
3. Remove 2 high voltage lead wires.
4. Remove circulation fan motor bracket and belt. (2 screws)
5. Remove air guide. (2 screws)
6. Remove 4 screws holding magnetron.
NOTE:
After replacement
of the
magnetron,
tighten
mounting screws properly making sure there is no gap
between the waveguide and the magnetron to prevent
microwave leakage.
NOTE: Magnetron used for this modes is unique type for
inverter power supply system. Make sure to use the one as
listed in the part list.
6.2. High Voltage Inverter Power
Supply (U) (NEW H.V.)
1. Discharge high voltage capacitors.
2. Remove 2 screws holding magnetron bracket. (Remove
grounding wire)
3. Remove 3 screws holding inverter and fan motor assembly.
4. Unplug 3 connectors of inverter PCB.
5. Remove 2 screws holding inverter PCB on to bracket.
NOTE: Do not pull by lead wires but make sure to pull
housing unless PCB or lead wire may break.
6 DISASSEMBLY AND PARTS REPLACEMENT
PROCEDURE
13
NN-V690P / NN-V690PS / NN-V680W / NN-V680W
Summary of Contents for NN-V680W
Page 3: ...20 INVERTER CIRCUIT 43 21 REF NO 35 INVERTER U 44 3 NN V690P NN V690PS NN V680W NN V680W ...
Page 4: ...1 CONTROL PANEL 4 NN V690P NN V690PS NN V680W NN V680WS ...
Page 6: ...6 NN V690P NN V690PS NN V680W NN V680WS ...
Page 8: ...3 2 SCHEMATIC DIAGRAM XNE ZPE 8 NN V690P NN V690PS NN V680W NN V680WS ...
Page 17: ...17 NN V690P NN V690PS NN V680W NN V680W ...
Page 22: ...9 TROUBLESHOOTING GUIDE NEW H V 22 NN V690P NN V690PS NN V680W NN V680WS ...
Page 23: ...23 NN V690P NN V690PS NN V680W NN V680W ...
Page 27: ...10 HOW TO CHECK THE SEMICONDUCTORS USING AN OHM METER 27 NN V690P NN V690PS NN V680W NN V680W ...
Page 30: ...12 EXPLODED VIEW AND PARTS LIST 30 NN V690P NN V690PS NN V680W NN V680WS ...
Page 39: ...18 DIGITAL PROGRAMMER CIRCUIT SCHEMATIC DIAGRAM 39 NN V690P NN V690PS NN V680W NN V680W ...
Page 40: ...40 NN V690P NN V690PS NN V680W NN V680WS ...
Page 43: ...20 INVERTER CIRCUIT SCHEMATIC DIAGRAM 43 NN V690P NN V690PS NN V680W NN V680W ...
