Toshiba D-R560KU, Service Manual

Page: 23 / 72

1-8-7 E7M70TR
FLOW CHART NO.21
Picture does not appear normally.
Set the disc on the disc tray, and playback.
Check the periphery of JK2203 from Pin (10,11,13)
of IC1401 and replace P1(AV ASSEMBLY) if defective.
Check the periphery of JK2201 from Pin (14) of
IC1401 and replace P1(AV ASSEMBLY) if defective.
Check the periphery of JK2202 from Pin (13) of
IC1401 and replace P1(AV ASSEMBLY) if defective.
Check the periphery of JK2202 from Pin (15) of
IC1401 and replace P1(AV ASSEMBLY) if defective.
Are the video signals outputted to the specific
output terminal?
Are the Y, Pb/Cb, Pb/Cr signals outputted to the
COMPONENT OUT terminal (JK2203)?
Are the luminance signals outputted to the
S-VIDEO OUT terminal (JK2202)?
Are the chroma signals outputted to the
S-VIDEO OUT terminal (JK2202)?
No
No
No
No
Are the composite video signals outputted to
the VIDEO OUT terminal (JK2201)?
A
Yes
Are the video signals outputted to each pin of
CN1101?
Replace P2(DVD MECHANISM & DVD MAIN
BOARD ASSEMBLY).
Check the line between each pin of CN1101 and each
pin of IC1401, and replace P1(AV ASSEMBLY)
if defective.
Are the video signals shown above inputted into
each pin of IC1401?
Yes
No
No
CN1101 VIDEO-Y(I/P) 7PIN
CN1101 VIDEO-Pr/Cr 5PIN
CN1101 VIDEO-Pb/Cb 3PIN
CN1101 VIDEO-C
VIDEO-Y(I/P)
VIDEO-Pr/Cr
VIDEO-Pb/Cb
VIDEO-C
9PIN
IC1401 VIDEO-Y(I/P) 3PIN
IC1401 VIDEO-Pr/Cr 8PIN
IC1401 VIDEO-Pb/Cb 6PIN
IC1401 VIDEO-C 1PIN
CN1101
→
IC1401 7PIN
CN1101
→
IC1401 5PIN
CN1101
→
IC1401 3PIN
→
IC1401
9PIN
3PIN
8PIN
6PIN
1PIN
CN1101
Is 5V voltage applied to the Pin(4, 12) of
IC1401?
Replace P1
(AV ASSEMBLY).
Check VIDEO+5V line and replace
P1(AV ASSEMBLY) if defective.
Are the video signals outputted to each pin of
IC1401?
Yes No
Yes
No
IC1401 VIDEO-Y(I/P) 13PIN
IC1401 VIDEO-Pr/Cr 10PIN
IC1401 VIDEO-Pb/Cb 11PIN
IC1401 VIDEO-CVBS 14PIN
IC1401 VIDEO-C 15PIN
Check the periphery of JK2203 from Pin (10,11,13)
of IC1401 and replace P1(AV ASSEMBLY) if defective.
Check the periphery of JK2201 from Pin (14) of
IC1401 and replace P1(AV ASSEMBLY) if defective.
Check the periphery of JK2202 from Pin (13) of
IC1401 and replace P1(AV ASSEMBLY) if defective.
Check the periphery of JK2202 from Pin (15) of
IC1401 and replace P1(AV ASSEMBLY) if defective.
Are the video signals outputted to the specific
output terminal?
Are the Y, Pb/Cb, Pb/Cr signals outputted to the
COMPONENT OUT terminal (JK2203)?
Are the luminance signals outputted to the
S-VIDEO OUT terminal (JK2202)?
Are the chroma signals outputted to the
S-VIDEO OUT terminal (JK2202)?
No
No
No
No
Are the composite video signals outputted to
the VIDEO OUT terminal (JK2201)?