Sanyo DC-TS760 - Trouble Shooting

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TROUBLE SHOOTING
DAC5V LINE CONFIRM
3.3V LINE CONFIRM
IC412 PERIPHERAL CIRCUIT
CONFIRM (IC411,IC410 etc)
LOADER CHANGE
MUTE CIRCUIT
Q8880 PERIPHERAL CIRCUIT
CONFIRM
DAC IC870 NG
DAC IC870 PERIPHFRAL CONFIRM
DAC IC870 NG
3.3V,DAC5V
CONFIRM
CN870 Pin1,15,18
LOADER CHANGE
OK?
IC800 AMCLK,ALRCLK,
AOUT0~2,ML,MC,MD1 CONFIRM
Pin2~7,12~14,47
IC820 Pin
FLOATING CONFIRM
IC820 NG
VIDEO COMPOSITE OUT ; OK
TUNER OUTPUT ; OK
VIDEO 1,2 OUTPUT ; OK
DVD/CD OUTPUT ; NG
IC870 Pin17,19,21,23,25,27
CONFIRM
N
Y
N
N
N
Y
Y
C,SL,SR,SW PERIPHERAL CONFIRM
(IC451,471,472,482,483,452,450,491
PERIPHERAL CONFIRM)
Q SURROUND , Volume CONFIRM
(IC452,451 PERIPHERAL CONFIRM)
IC460,451 CONFIRM
TUNER OUTPUT ; L,R OK / C,SL,SR,SW NG
VIDEO 1,2 OUTPUT ; L,R OK / C,SL,SR,SW NG
DVD/CD OUTPUT ; L,R OK / C,SL,SR,SW NG
TUNER OUTPUT ; L,R OK / C,SL,SR,SW NG
VIDEO 1,2 OUTPUT ; L,R OK / C,SL,SR,SW NG
DVD/CD OUTPUT ; L,R OK / C,SL,SR,SW OK
TUNER OUTPUT ; NG
VIDEO 1,2 OUTPUT ; OK
DVD/CD OUTPUT ; OK
Y