Denon dvd-900 Service Manual page 18

QQ
3 7 63 1515 0
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 the AV CBA?
CN1601 10PIN CVBS
CN1601 8PIN S-Y
CN1601 12PIN S-C
CN1601 6PIN B
CN1601 4PIN R
CN1601 2PIN G
Are the video signals shown above inputted into
each pin of IC1402?
IC1402 4PIN CVBS
IC1402 6PIN S-Y
IC1402 2PIN S-C
IC1402 14PIN B
IC1402 16PIN R
IC1402 12PIN G
TE
L 13942296513
Are the video signals outputted to each pin
of IC1402?
IC1402 30PIN CVBS
IC1402 27PIN S-Y
IC1402 33PIN S-C
IC1402 21PIN B
IC1402 18PIN R
IC1402 12PIN G
Are the video signals outputted to the specific
output terminal?
Are the composite video signals and component
video signals outputted to the VIDEO OUT
terminal (JK1402, JK1404)?
Are the luminance signals outputted to the
S-OUT terminal (JK1401)?
Are the chroma signals outputted to the
S-OUT terminal (JK1401)?
www
.
http://www.xiaoyu163.com
Yes
Yes
Yes
x ao u163
y
i
http://www.xiaoyu163.com
2 9
8
No
Replace the DVD Main CBA Unit or DVD Mecha .
Check the line between each pins of CN1601 and
each pins of IC1402 on the AV CBA .
No
CN1601 10PIN → IC1402 4PIN
CN1601 8PIN → IC1402 6PIN
CN1601 12PIN → IC1402 2PIN
CN1601 6PIN → IC1402 14PIN B
CN1601 4PIN → IC1402 16PIN R
CN1601 2PIN → IC1402 12PIN G
Q Q
3 6 7 1 3 1 5
No
Is 5V voltage supplied to the Pins(1, 3, 5, 34) of
IC1402?
Check or replace IC1402?
Check the periphery of the VIDEO OUT terminal
No
(JK1402, JK1404) from Pins(18, 21, 24, 30) of IC1402.
No Check the periphery of JK1401 from
Pin(27) of IC1402.
No
Check the periphery of JK1401 from
Pin(33) of IC1402.
co
.
- 18 -
9 4 2 8
CVBS
S-Y
S-C
0 5 8 2 9 9 4 2 8
Yes
m
9 9
9 9