Toshiba RD-X V45KB, Service Manual

Page: 30 / 135

1-11-7 E439ATR
FLOW CHART NO.5
Picture does not appear normally.
Set the disc on the disc tray, and playback it.
(DVD MODE)
Or, playback by selecting the picture in HDD top
menu. (HDD MODE)
Are the video signals outputted to each pin of
IC1506?
Yes
Yes
No
Check the periphery of JK1504 from Pin (30) of
IC1506 and service it if defective.
Check the periphery of JK2001 from Pin (22) of
IC1506 and service it if defective.
Check the periphery of JK1505 from
Pin (36) of IC1506 and service it if defective.
Check the periphery of JK1505 from
Pin (34) of IC1506 and service it if defective.
Are the video signals outputted to the specific
output terminal?
Are the luminance signals outputted to the
S-VIDEO OUT terminal (JK1505)?
Are the chroma signals outputted to the
S-VIDEO OUT terminal (JK1505)?
No
No
No
No
Are the composite video signals outputted to
the VIDEO OUT (AV1) terminal (JK1504)?
Are the composite video signals outputted to
the VIDEO OUT (AV2) terminal (JK2001)?
Are the video signals outputted to each pin of
CN1504?
Replace the DVD MECHANISM & DVD MAIN
BOARD ASSEMBLY.
Check the line between each pin of CN1504 and
each pin of IC1506, and service it if defective. Are the video signals shown above inputted into
each pin of IC1506?
Yes
No
No
CN1504 VIDEO-Y(I/P)-OUT 7PIN
CN1504 VIDEO-Y(I)-OUT 1PIN
CN1504 VIDEO-Cr/Pr-OUT 3PIN
CN1504 VIDEO-Cb/Pb-OUT 5PIN
CN1504 VIDEO-C-OUT
VIDEO-Y(I/P)-OUT
VIDEO-Cr/Pr-OUT
VIDEO-Cb/Pb-OUT
VIDEO-C-OUT
9PIN
IC1506 VIDEO-Y(I/P)-OUT 51PIN
IC1506 VIDEO-Y(I)-OUT 55PIN
IC1506 VIDEO-Cr/Pr-OUT 52PIN
IC1506 VIDEO-Cb/Pb-OUT 53PIN
IC1506 VIDEO-C-OUT 57PIN
IC1506 Y-OUT 36PIN
IC1506 C-OUT 34PIN
IC1506 VIDEO-OUT 1 (AV1) 30PIN
IC1506 VIDEO-OUT 2 (AV2) 22PIN
CN1504
→
IC1506 7PIN
CN1504
→
IC1506 3PIN
CN1504
→
IC1506 5PIN
→
IC1506
9PIN
51PIN
VIDEO-Y(I)-OUT CN1504
→
IC1506 1PIN 55PIN
52PIN
53PIN
57PIN
CN1504
Check the AL+5V(2) , AL+9V
line and service it if defective.
Replace IC1506.
Yes No
Is 5V voltage supplied to Pin(27,29,47,63) of
IC1506?
Is 9V voltage supplied to Pin(75) of IC1506?