Denon DVM-1805 Service Manual page 19

QQ
3 7 63 1515 0
FLOW CHART NO.20
Picture does not appear normally in interlace mode.
Set the disc on the disc tray and playback.
Are the video signals outputted to each pin of
CN1601 on the the Changer CBA?
CN1601 7PIN CVBS
CN1601 5PIN S-Y
CN1601 9PIN S-C
CN1601 3PIN U
CN1601 1PIN V
Are the video signals shown above inputted into
each pin of IC1402?
IC1402 4PIN CVBS
IC1402 6PIN & 12PIN
IC1402 2PIN S-C
IC1402 14PIN U
IC1402 16PIN V
Are the video signals outputted to each pin
of IC1402?
IC1402 30PIN CVBS
TE
L 13942296513
IC1402 27PIN S-Y
IC1402 33PIN S-C
IC1402 24PIN Y
IC1402 21PIN U
IC1402 18PIN V
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 (JK1403)?
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
S-Y
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 Changer CBA.
No
CN1601 7PIN → IC1402 4PIN
CN1601 5PIN → IC1402 6PIN & 12PIN
CN1601 9PIN → IC1402 2PIN
CN1601 3PIN → IC1402 14PIN U
CN1601 1PIN → IC1402 16PIN V
No
Is 5V voltage supplied to the Pins(1, 3, 5, 34) of
Q Q
3 6 7 1 3 1 5
IC1402?
Check or replace IC1402?
Check the periphery of JK1403 from the
No
Pins(18, 21, 24, 30) of IC1402.
No Check the periphery of JK1401 from the
Pin(27) of IC1402.
No
Check the periphery of JK1401 from the
Pin(33) of IC1402.
co
.
- 19 -
9 4 2 8
CVBS
S-Y
S-C
0 5 8 2 9 9 4 2 8
Yes
m
9 9
9 9