Toshiba D-VR40SF Service Manual page 29

"C1"
Are the video signals inputted to each pin of IC1516
and each pin of IC1514?
(Output to JK1501)
IC1516 3PIN VIDEO-Y(I/P)-OUT
IC1516 8PIN VIDEO-Cr/Pr-OUT
IC1516 6PIN VIDEO-Cb/Pb-OUT
(Output to JK1502)
IC1514 6PIN VIDEO-Y(I/P)-OUT/VIDEO-G-IN
IC1514 8PIN VIDEO-Cr/Pr-OUT/VIDEO-R-IN
IC1514 1PIN VIDEO-Cb/Pb-OUT/VIDEO-B-IN
Are the video signals inputted to each pin of IC1516
and each pin of IC1514?
(Output to JK1501)
IC1516 13PIN VIDEO-Y(I/P)-OUT
IC1516 10PIN VIDEO-Cr/Pr-OUT
IC1516 11PIN VIDEO-Cb/Pb-OUT
(Output to JK1502)
IC1514 11PIN VIDEO-Y(I/P)-OUT/VIDEO-G-IN
IC1514 10PIN VIDEO-Cr/Pr-OUT/VIDEO-R-IN
IC1514 5PIN VIDEO-Cb/Pb-OUT/VIDEO-B-IN
Are the video signals outputted to the specific
output terminal?
Are the component video signals outputted to
COMPONENT OUT terminal (JK1501)?
Are the component video and RGB video signals
outputted to VIDEO OUT (AV1) terminal (JK1502)?
Yes
Yes
Check the line between each pin of IC1516 and
each pin of IC1510, and service it if defective.
IC1516 3PIN → IC1510 13PIN VIDEO-Y(I/P)-OUT
No
IC1516 8PIN → IC1510 3PIN VIDEO-Cr/Pr-OUT
IC1516 6PIN → IC1510 1PIN VIDEO-Cb/Pb-OUT
Check the line between each pin of IC1514 and
No
each pin of IC1509, and service it if defective.
IC1514 6PIN → IC1509 15PIN VIDEO-Y(I/P)-OUT/VIDEO-G-IN
IC1514 8PIN → IC1509 14PIN VIDEO-Cr/Pr-OUT/VIDEO-R-IN
IC1514 1PIN → IC1509 4PIN VIDEO-Cb/Pb-OUT/VIDEO-B-IN
No
Is 5V voltage supplied to Pin(4,12) of IC1516?
No
Replace IC1516.
No
Is 5V voltage supplied to Pin(4,12) of IC1514?
No
Replace IC1514.
Check the periphery of JK1501 from Pin (10,11,13)
No
of IC1516 and service it if defective.
Check the periphery of JK1502 from Pin (10,11,15)
No
of IC1514 and service it if defective.
1-10-8
Yes
Check the DVD-P-ON+5V line,
and service it if defective.
Yes
Check the DVD-P-ON+5V line,
and service it if defective.
E9BA1TR