6.1. Inverter power supply
CAUTIONS
1. Always leave the grounding plate in place.
2. Always securely tighten the ground screw through the bottom of the
chassis (base).
3. Securely connect 3 lead wire connectors.
4. Make sure the heat sink has enough space (gap) from the oven.
Take special care not to dress any lead wire over the aluminum heat
sink because it is hot.
1. Discharge high voltage remaining in high voltage capacitor.
2. Disconnect 2 high voltage lead wires from magnetron
filament terminals.
3. Disconnect connector CN701 & CN702 from H.V. Inverter
board.
4. Remove 4 screws holding inverter reinforcement bracket A
on right heater panel & base plate respectively.
5. Release locking tabs connecting inverter air guide with
inverter bracket.
6. Remove 1 screw holding H.V.Inverter to Inverter bracket.
7. Remove 1 screw holding grounding plate to H.V. Inverter.
6 DISASSEMBLY AND PARTS REPLACEMENT
PROCEDURE
11
NN-CF771S
Summary of Contents for NN-CF771S
Page 2: ...2 NN CF771S ...
Page 3: ...3 NN CF771S ...
Page 5: ...1 FEATURE CHART 2 CONTROL PANEL 5 NN CF771S ...
Page 6: ...3 SCHEMATIC DIAGRAM 6 NN CF771S ...
Page 28: ...10 EXPLODED VIEW AND PARTS LIST 10 1 EXPLODED VIEW 28 NN CF771S ...
Page 35: ...11 DIGITAL PROGRAMMER CIRCUIT 11 1 SCHEMATIC DIAGRAM 35 NN CF771S ...
