Toshiba D-VR40SF Service Manual page 28

FLOW CHART NO.6
Picture does not appear normally. [In the RGB/Component video output (JK1501, JK1502)]
Set the disc on the disc tray and playback.
Are the video signals outputted to each pin of
CN1502?
CN1502 24PIN VIDEO-Y(I/P)-OUT
CN1502 26PIN VIDEO-Cr/Pr-OUT
CN1502 28PIN VIDEO-Cb/Pb-OUT
Are the video signals inputted to each pin of
IC1510?
IC1510 14PIN VIDEO-Y(I/P)-OUT
IC1510 4PIN VIDEO-Cr/Pr-OUT
IC1510 15PIN VIDEO-Cb/Pb-OUT
Are the video signals outputted to each pin of
IC1510?
(Output to JK1501)
IC1510 13PIN VIDEO-Y(I/P)-OUT
IC1510 3PIN VIDEO-Cr/Pr-OUT
IC1510 1PIN VIDEO-Cb/Pb-OUT
(Output to JK1502)
IC1510 12PIN VIDEO-Y(I/P)-OUT
IC1510 5PIN VIDEO-Cr/Pr-OUT
IC1510 2PIN VIDEO-Cb/Pb-OUT
Yes (Output to
JK1501)
Are the video signal inputted to each pin of
IC1509?
IC1509 2PIN VIDEO-Y(I/P)-OUT
IC1509 12PIN VIDEO-Cr/Pr-OUT
IC1509 5PIN VIDEO-Cb/Pb-OUT
IC1509 1PIN VIDEO-G-IN
IC1509 13PIN VIDEO-R-IN
IC1509 3PIN VIDEO-B-IN
Are the video signal outputted to each pin of
IC1509?
IC1509 15PIN VIDEO-Y(I/P)-OUT/VIDEO-G-IN
IC1509 14PIN VIDEO-Cr/Pr-OUT/VIDEO-R-IN
IC1509 4PIN VIDEO-Cb/Pb-OUT/VIDEO-B-IN
Continued to "C1" on the next page.
No
Yes
Yes
Yes (Output to JK1502)
Yes
Yes
"B"
No
Replace DVD MECHANISM & DVD MAIN BOARD
ASSEMBLY.
Check the line between each pin of IC1510 and
No
each pin of CN1502, and service it if defective.
IC1510 14PIN → CN1502 24PIN VIDEO-Y(I/P)-OUT
IC1510 4PIN → CN1502 26PIN VIDEO-Cr/Pr-OUT
IC1510 15PIN → CN1502 28PIN VIDEO-Cb/Pb-OUT
No
Is 5V voltage supplied to Pin(16) of IC1510?
Is -5V voltage supplied to Pin(7) of IC1510?
No
Replace IC1510.
No
Check the line between each pin of IC1509 and
each pin of IC1510, and service it if defective.
No
Check the line between each pin of IC1509 and
JK2001, and service it if defective.
No
Is 5V voltage supplied to Pin(16) of IC1509?
Is -5V voltage supplied to Pin(7) of IC1509?
No
Replace IC1509.
1-10-7
Yes
Check the DVD-P-ON+5V and
AL-5V line, and service it if
defective.
Yes
Check AL+5V(I) and AL-5V
line, and service it if defective.
E9BA1TR