H97, H98 and H99
appears in display window a short time alter start key is pressed and
no microwave oscillation.
NOTE:
DO NOT try to REPAIR this Inverter Power Supply (U) and also DO NOT RE-ADJUST PRESET VOLUME on the board. It is very dangerous to repair or adjust without sufficient test equipment because this circuit handles very high voltage and very large current. Off alignment or inverter board operation is dangerous. Operating a misaligned inverter circuit is dangerous due to the very high voltage and current that is produced by this board. Defective boards must be replaced with a new one.
H97, H98 and H99 appears in
display window a short time alter start key is pressed and no microwave
oscillation.
NOTE:
DO NOT try to REPAIR this
Inverter Power Supply (U) and also DO NOT RE-ADJUST PRESET VOLUME on the board.
It is very dangerous to repair or adjust without sufficient test equipment
because this circuit handles very high voltage and very large current. Off
alignment or inverter board operation is dangerous. Operating a misaligned
inverter circuit is dangerous due to the very high voltage and current that is
produced by this board. Defective boards must be replaced with a new one.
- Check magnetron filament for open or short to casing before proceeding to determine a good magnetron.
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