Toshiba RD-87DTKF, Service Manual

Page: 26 / 75

1-9-7 E2J70TR
FLOW CHART NO.22
Picture does not appear normally.
Set the disc on the disc tray, and playback.
Are the video signals outputted to each pin of
IC005?
Yes
Yes
Check the periphery of JK1205 from Pin (38,39,
40) of IC005 and service it if defective.
Check the periphery of JK1206 from Pin (30) of
IC005 and service it if defective.
Check the periphery of JK1207 from Pin (22) of
IC005 and service it if defective.
Are the video signals outputted to the specific
output terminal?
Are the Y, Pb/Cb, Pr/Cr signals outputted to the
COMPONENT OUT terminal (JK1205)? No
No
No
Are the composite video signals outputted to
the VIDEO OUT (AV1) terminal (JK1206)?
Are the composite video signals outputted to
the VIDEO OUT (AV2) terminal (JK1207)?
Are the video signals outputted to each pin of
CN1201?
Replace the DVD MECHANISM & DVD MAIN
BOARD ASSEMBLY.
Check the line between each pin of CN1201 and
each pin of IC005, and service it if defective. Are the video signals shown above inputted into
each pin of IC005?
Yes
No
No
CN1201 VIDEO-Y(I/P)-OUT 7PIN
CN1201 VIDEO-Y(I)-OUT 1PIN
CN1201 VIDEO-Pr/Cr-OUT 5PIN
CN1201 VIDEO-Pb/Cb-OUT 3PIN
CN1201 VIDEO-C-OUT
VIDEO-Y(I/P)-OUT
VIDEO-Pr/Cr-OUT
VIDEO-Pb/Cb-OUT
VIDEO-C-OUT
9PIN
IC005 VIDEO-Y(I/P)-OUT 51PIN
IC005 VIDEO-Y(I)-OUT 55PIN
IC005 VIDEO-Pr/Cr-OUT 52PIN
IC005 VIDEO-Pb/Cb-OUT 53PIN
IC005 VIDEO-C-OUT 57PIN
IC005 VIDEO-Y 40PIN
IC005 VIDEO-Pr/Cr 39PIN
IC005 VIDEO-Pb/Cb 38PIN
IC005 VIDEO-OUT 1 (AV1) 30PIN
IC005 VIDEO-OUT 2 (AV2) 22PIN
CN1201
→
IC005 7PIN
CN1201
→
IC005 5PIN
CN1201
→
IC005 3PIN
→
IC005
9PIN
51PIN
VIDEO-Y(I)-OUT CN1201
→
IC005 1PIN 55PIN
52PIN
53PIN
57PIN
CN1201
Is 5V voltage supplied to the Pin(27,29,47,63) of IC005?
Replace IC005. Check AL+5V(2) line
and service it if defective.
Yes
No
No