Sharp DV-RW550U - Timer Recording Procedures

1-11-8
E9656TS
Is 5V voltage applied to the Pin(4, 12) of
IC1405 and the Pin(4) of IC1404?
Replace IC1404
or IC1405.
Check DVD P-ON+5V line
and service it if defective.
Are the video signals outputted to each pin of
IC1404 and each pin of IC1405?
Ye s
Are the "L" pulse inputted to Pin(9,10,11) of IC1406?
Is 5V voltage supplied to
Pin(16) of IC1406?
Check AL+5V line and service
it if defective.
Replace IC501.
Replace IC1406.
Ye s
Ye s
Replace Q391.
No
No
No
No
Ye s
Ye s
Ye s
No
Ye s
No
Check the periphery of JK1403 from Pins (10, 11,
13) of IC1405 and service it if defective.
Check the periphery of JK1401 from
Pin (5) of IC1404 and service it if defective.
Check the periphery of JK1401 from
Pin (7) of IC1404 and service it if defective.
Are the video signals outputted to the specific
output terminal?
Are the Y, Cb, Cr signals outputted to the
COMPONENT OUT terminal (JK1403)?
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 composite video signals outputted to
the VIDEO OUT terminal (JK751)?
Is the video signal outputted to Pin(15) of IC1406?
Is the video signal outputted to the emitter of Q391?
Check the line between the
emitter of Q391
and JK751,
and service it if defective.
Are the video signals outputted to each pin of
CN201 on the MAIN CBA?
Replace the DVD Mechanism & DVD Main CBA
Assembly.
Check the line between each pin of CN201 and
each pin of IC1404 and IC1405 on the MAIN CBA,
and service it if defective.
Are the video signals shown above inputted into
each pin of IC1404 and each pin of IC1405?
Ye s
No
No
CN201 VIDEO-Y(I/P)7PIN
CN201 VIDEO-Cr/Pr3PIN
CN201 VIDEO-Cb/Pb5PIN
CN201 VIDEO-Y(I)1PIN
CN201 VIDEO-C
VIDEO-Y(I/P)
VIDEO-Cr/Pr
VIDEO-Cb/Pb
VIDEO-C
9PIN
IC1405 VIDEO-Y(I/P)3PIN
IC1405 VIDEO-Cr/Pr8PIN
IC1405 VIDEO-Cb/Pb6PIN
IC1404 VIDEO-Y(I)3PIN
IC1404 VIDEO-C1PIN
IC1405 VIDEO-Y(I/P)13PIN
IC1405 VIDEO-Cr/Pr10PIN
IC1405 VIDEO-Cb/Pb11PIN
IC1404 VIDEO-CVBS6PIN
IC1404 VIDEO-Y(I)5PIN
IC1404 VIDEO-C7PIN
CN201 → IC14057PIN
CN201 → IC14053PIN
CN201 → IC14055PIN
CN201 → IC14049PIN
3PIN
8PIN
6PIN
1PIN
VIDEO-Y(I)
CN201 → IC14041PIN 3PIN
FLOW CHART NO.8
Picture does not appear normally.
Set the disc on the disc tray, and playback.