FLOW CHART NO.19
Both functions of picture and sound do not operate normally.
Replace the DVD Main CBA.
No
No improvement can be found.Original DVD Main CBA is poor.
Yes
Replace the DVD Mecha.
FLOW CHART NO.20
Picture does not appear normally.
Set the disc on the disc tray, and playback.
No
Are the video signals outputted to each pin of Replace the DVD Main CBA or DVD Mecha.
CN1601 on the AV CBA?
CN1601 4PIN Cr/Pr
CN1601 6PIN Cb/Pb
CN1601 8PIN S-Y
CN1601 10PIN S-C
Yes
Check the line between each pin of CN1601 and
Are the video signals shown above inputted into each pin of IC1402 on the AV CBA, and service
each pin of IC1402?Noit if detective.
IC1402 1PIN S-CCN1601 10PIN ? IC1402 1PIN S-C
IC1402 3PIN S-YCN1601 8PIN ? IC1402 3PIN S-Y
IC1402 6PIN Cb/PbCN1601 6PIN ? IC1402 6PIN Cb/Pb
IC1402 8PIN Cr/PrCN1601 4PIN ? IC1402 8PIN Cr/Pr
Yes
Are the video signals outputted to each pin
of IC1402?
IC1402 13PIN S-Y
IC1402 11PIN Cb/PbNo
Is 5V voltage applied to the pin(4, 12) of IC1402?
IC1402 10PIN Cr/Pr
IC1402 14PIN CVBSYesNo
IC1402 15PIN S-CReplace IC1402.Check P-ON+5V line and
Yesservice it if detective.
Are the video signals outputted to the specific
output terminal?
Are the luminance signals outputted to the NoCheck the periphery of JK1401 from
S-OUT terminal (JK1401)?Pin (13) of IC1402 and service it if detective.
Are the chroma signals outputted to the NoCheck the periphery of JK1401 from
S-OUT terminal (JK1401)?Pin (15) of IC1402 and service it if detective.
Are the component video signals outputted to the No
Check the periphery of JK1404 from Pins (10, 11,
VIDEO OUT terminal (JK1404)?13) of IC1402 and service it if detective.
Are the composite video signals outputted to Check the periphery of JK1404 from Pin(14) of No
the VIDEO OUT terminal (JK1404)?IC1402 and service it if detective.
1-8-5E5943TS |
ACEC
SHARP
