Denon DVD DVD-1930, Service Manual, Page: 19 / 51

19
DVD-1930
Is 5V voltage applied to the pin(4, 12) of
IC1402, IC1405 and pin (4) of IC1401?
Replace IC1401,
IC1402, IC1405. Check P-ON+5V line and
service it if detective.
Are the video signals outputted to each pin
of IC1401, IC1402, IC1405?
Yes No
Yes
Yes
No
Check the periphery of JK1407 from
Pin (6) of IC1401 and service it if detective.
Check the periphery of JK1405 from Pins (10, 11,
13) of IC1402 and service it if detective.
Check the periphery of JK1401 from
Pin (5) of IC1401 and service it if detective.
Check the periphery of JK1401 from
Pin (7) of IC1401 and service it if detective.
Are the video signals outputted to the specific
output terminal?
Are the composite video signals outputted to the
VIDEO OUT terminal (JK1407)?
Are the luminance signals outputted to the
S-VIDEO OUT terminal (JK1401)?
Are the chroma signals outputted to the
S-VIDEO OUT terminal (JK1401)?
No
No
No
No
Are the R, G, B signals outputted to the
RGB OUT terminal (JK1405)?
Check the periphery of JK1407 from Pins (10, 11,
13) of IC1405 and service it if detective.
No
Are the Y, Cb/Pb, Cr/Pr signals outputted to the
COMPONENT OUT terminal (JK1407)?
FLOW CHART NO.20
Picture does not appear normally.
Set the disc on the disc tray, and playback.
Are the video signals outputted to each pin of
CN1601 on the AV CBA?
Replace the DVD Main CBA Unit or DVD Mechanism.
Check the line between each pin of CN1601 and
each pin of IC1401, IC1402, IC1405 on the AV
CBA, and service it if detective.
CN1601 1PIN
→
IC1401 3PIN
CN1601 10PIN
→
IC1401 1PIN
CN1601 4PIN
→
IC1403 4PIN
IC1403 5PIN
→
IC1402 8PIN
IC1403 3PIN
→
IC1405 8PIN
CN1601 6PIN
→
IC1403 15PIN
IC1403 2PIN
→
IC1402 6PIN
IC1403 1PIN
→
IC1405 6PIN
CN1601 8PIN
→
IC1403 14PIN
IC1403 12PIN
→
IC1402 3PIN
IC1403 13PIN
→
IC1405 3PIN
Are the video signals shown above inputted into
each pin of IC1401, IC1402, IC1405?
Yes
No
No
CN1601 1PIN S-Y
CN1601 4PIN Cr/Pr, R
CN1601 6PIN Cb/Pb, B
CN1601 8PIN Y, G
CN1601 10PIN S-C
S-VIDEO OUT,
VIDEO OUT is NG. IC1401 3PIN S-Y
IC1401 1PIN S-C
RGB OUT is NG.
IC1402 8PIN R
IC1402 3PIN G
IC1402 6PIN B
Y, Cb/Pb, Cr/Pr is NG.
IC1405 3PIN Y
IC1405 6PIN Cb/Pb
IC1405 8PIN Cr/Pr
S-VIDEO OUT,
VIDEO OUT is NG.
IC1401 5PIN S-Y
IC1401 7PIN S-C
IC1401 6PIN CVBS
RGB OUT is NG.
IC1402 10PIN R
IC1402 13PIN G
IC1402 11PIN B
Y, Cb/Pb, Cr/Pr is NG.
IC1405 13PIN Y
IC1405 11PIN Cb/Pb
IC1405 10PIN Cr/Pr