PC No Sound – (1)
Does the picture appear at R3014 ,R9414 ?
Check cable connection and
Connector stereo cable.
NO
Does proper +12V at Pin 9,10,11 CN601?
Does proper +8V appear at BD301 ?
Check power board.
*Refer to 1.no power
(previous page)
NO
YES
Check LED on
after pushing the power button.
NO
YES
YES
IC304 defect change main board.
NO
YES
IC1802 defect change main board.
NO
YES
Does the picture appear at Pin 6 (PC_AL)
23 (PC_AR) of IC304 ?
Does the picture appear at Pin 1
(SW_OUTL ) , 2 (SW_OUTR) of IC1802 ?
IC1754 defect change main board.
NO
Does the picture appear at Pin 7
(CODEC_OUTL ) , 8(CODEC_OUTR) of IC1754 ?
Refer to **
14
14
Trouble Shooting
Trouble Shooting