17
3. No Raster
Is 12V
plugged in pin 1
of CN4A(power
board)?
No
No
Yes
Yes
Is the output of
inverter correct?
Check the output
of D811(power board).
Replace the inverter.
Replace a LCD panal.
< 2.5
> 2.5
Check the
output of Q2 or
pin 3 of U3.
Trouble in Q6 or
pin 3 of -com.
