Hitachi 55PD8800TA Service Manual page 51

37LD8800TA Panel Module
No Picture or Abnormal display
BackLight Lights on?
No
Check Pin
1~5, 12 of CNLD2, CNLD3 of
Power Board
Pin 1~5 : 24 [V]
No
Pin 12 : 5 [V]
Power Board or FC Board
55PD8800/37LD8800
Yes
25~28 of P600 of Power
Yes
Inverter Unit
51
Check Pin
Board
No
Pin 25~28 : 12 [V]
Power board
Yes
Panel Module or FC Board