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This may happen when the Main
Board is normal but the X, Y Main Board, Logic Board, or Y Buffer Board is out
of order.
The output voltage of the Main
SMPS or the DC-DC SMPS is out of order.
This may happen when the LVDS
cable connecting the Main Board and the Logic Board is disconnected.
When separating and connecting
the cables such as CN809 of the Main SMPS, CN1, CN2, CN3, CN4 and CN5 of the
DC-DC SMPS, CN of the X Main Board, and CN of the Y Main Board, a spark may be
generated by the electric charge of the high capacity capacitor. Therefore,
wait some time after separ ating the power cord from the unit.
NO SOUND
NO VIDEO
