Denon DVD-3800BDCI Service Manual page 31

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3 7 63 1515 0
FLOW CHART NO.19
Picture does not appear normally.
Set the disc on the disc tray, and playback.
Are the video signals outputted to each pin of
CN2301 or CN2304?
CN2304 9PIN
CN2304 7PIN
CN2301 1PIN
CN2301 3PIN
CN2301 5PIN
Are the video signals shown above inputted into
each pin of IC2302 or IC2303?
IC2303 3PIN VIDEO-Y(I)
IC2303 1PIN VIDEO-C
IC2302 1PIN VIDEO-Y(I/P)
IC2302 3PIN VIDEO-Pb/Cb
IC2302 5PIN VIDEO-Pr/Cr
Are the video signals outputted to each pin
of IC2302 or IC2303?
IC2302 20PIN VIDEO-Y(I/P)
IC2302 17PIN VIDEO-Pb/Cb
IC2302 15PIN VIDEO-Pr/Cr
IC2303 5PIN VIDEO-Y(I)
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L 13942296513
IC2303 6PIN VIDEO-CVBS
IC2303 7PIN VIDEO-C
Are the video signals outputted to the specific
output terminal?
Are the luminance video signals outputted to the
S-VIDEO OUT terminal (JK2303)?
Are the chrominance video signals outputted to the
S-VIDEO OUT terminal (JK2303)?
Are the component video signals outputted to the
VIDEO OUT terminal (JK2300, JK2304, JK2305)?
Are the composite video signals outputted to
the VIDEO OUT terminal (JK2302)?
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VIDEO-Y(I)
VIDEO-C
VIDEO-Y(I/P)
VIDEO-Pb/Cb
VIDEO-Pr/Cr
Yes
Yes
Yes
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8
No
Replace the BE Main CBA Unit or FE Main CBA &
BD Mechanism Assembly.
Check the line between each pin of CN2301or
CN2304 and each pin of IC2302 or IC2303 on
the ,and service it if detective.
No
9PIN → IC2303
CN2304
7PIN → IC2303
CN2304
1PIN → IC2302
CN2301
3PIN → IC2302
CN2301
5PIN → IC2302
CN2301
No
Is 5V voltage supplied to the Pin(4,18) of IC2302
and Pin(4) of IC2303?
Yes
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3 6 7 1 3
Replace IC2302
or IC2303.
Check the periphery of S-VIDEO OUT terminal
No
(JK2303) from Pin(5) of IC2303 and service
it if detective.
Check the periphery of S-VIDEO OUT terminal
No
(JK2303) from Pin(7) of IC2303 and service
it if detective.
Check the periphery of VIDEO OUT terminal
No
(JK2300, JK2304, JK2305) from Pin(15,17,20)
of IC2302 and service it if detective.
Check the periphery of VIDEO OUT terminal
No
(JK2302) from Pin(6) of IC2303 and service
it if detective.
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31
DVD-3800BDCI
2 9 9 4 2 8
3PIN VIDEO-Y(I)
1PIN VIDEO-C
1PIN VIDEO-Y(I/P)
3PIN VIDEO-Pb/Cb
5PIN VIDEO-Pr/Cr
No
Check P-ON+5V(2) line and
1 5 0 5 8 2 9 9 4
service it if detective.
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9 9
2 8 9 9