Marantz DV4400, Service Manual

Page: 28 / 77

1-6-6 E57M2TR
FLOW CHART NO.21
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 or DVD Mecha.
Check the line between each pin of CN1601 and
each pin of IC6101 on the AV CBA, and service it
if defective.
Is 5V voltage applied to the pin(1, 34) of
IC6101?
Replace IC6101. Check P-ON+5V line and
service it if defective.
CN1601 1PIN
→
IC6101 6PIN S-Y
CN1601 9PIN
→
IC6101 2PIN S-C
CN1601 7PIN
→
IC6101 16PIN G
CN1601 5PIN
→
IC6101 12PIN B/Cb
CN1601 3PIN
→
IC6101 14PIN R/Cr
Are the video signals shown above inputted into
each pin of IC6101?
Are the video signals outputted to each pin
of IC6101?
Yes
Yes No
Yes
Yes
No
No
No
CN1601 1PIN S-Y
CN1601 9PIN S-C
CN1601 7PIN G
CN1601 5PIN B/Cb
CN1601 3PIN R/Cr
IC6101 6PIN S-Y
IC6101 2PIN S-C
IC6101 16PIN G
IC6101 12PIN B/Cb
IC6101 14PIN R/Cr
IC6101 31PIN CVBS
IC6101 28PIN S-Y
IC6101 33PIN S-C
IC6101 19PIN G
IC6101 25PIN B/Cb
IC6101 22PIN R/Cr
Check the periphery of JK6101 from Pins (19, 22,
25) of IC6101 and service it if defective.
Check the periphery of JK6102 from Pin (22, 25, 28)
of IC6101 and service it if defective.
Check the periphery of JK1401 from
Pin (28) of IC6101 and service it if defective.
Check the periphery of JK1401 from
Pin (33) of IC6101 and service it if defective.
Are the video signals outputted to the specific
output terminal?
Are the component video signals(RGB) outputted
to the VIDEO OUT terminal (JK6101)?
Are the luminance signals outputted to the
S-OUT terminal (JK1401)?
Are the chroma signals outputted to the
S-OUT terminal (JK1401)?
No
No
No
No
No
Are the component video signals(Y/Cb/Cr)
outputted to the VIDEO OUT terminal (JK6102)?
Check the periphery of JK6101 and JK6103 from
Pin(31) of IC6101 and service it if defective.
Are the composite video signals outputted to
the VIDEO OUT terminal (JK6101, JK6103)?