FUNAI WD6D-M100 Service Manual page 31

FLOW CHART NO.3
There is [No Disc] indication.
Both picture and sound do not operate normally.
Replace DVD MECHANISM & DVD MAIN CBA
ASSEMBLY.
FLOW CHART NO.4
VIDEO E-E does not appear normally.
Are the video signals inputted to each pin of IC1509?
IC1509 20PIN VIDEO-IN 1 (AV1)
IC1509 3PIN DTV-Y
IC1509 5PIN DTV-C
IC1509 12PIN VIDEO-IN 2 (AV2)
IC1509 18PIN TUNER-VIDEO
Are the video signals outputted to each pin of IC1509?
IC1509 61PIN VIDEO-Y/CVBS-IN
IC1509 59PIN VIDEO-C-IN
Are the video signals outputted to each pin of CN1502?
CN1502 20PIN VIDEO-Y/CVBS-IN
CN1502 22PIN VIDEO-C-IN
Are the video signals outputted to each pin of CN1502?
CN1502 7PIN VIDEO-Y(I/P)-OUT
CN1502 1PIN VIDEO-Y(I)-OUT
CN1502 5PIN VIDEO-Pr/Cr-OUT
CN1502 3PIN VIDEO-Pb/Cb-OUT
CN1502 9PIN VIDEO-C-OUT
Are the video signals shown above inputted into each
pin of IC1509?
IC1509 51PIN VIDEO-Y(I/P)-OUT
IC1509 55PIN VIDEO-Y(I)-OUT
IC1509 52PIN VIDEO-Pr/Cr-OUT
IC1509 53PIN VIDEO-Pb/Cb-OUT
IC1509 57PIN VIDEO-C-OUT
Continued to A on the next page.
Yes
Yes
Yes
Yes
Yes
No
Check the line between video input terminal and
each pin of IC1509, and service it if defective.
IC1509 20PIN
IC1509 3PIN
IC1509 5PIN
IC1509 12PIN
IC1509 18PIN
No
Is 5V voltage supplied to Pin(27, 29, 47, 63) of IC1509?
Is 9V voltage supplied to Pin(75) of IC1509?
Yes
Replace IC1509.
No
Check the line between each pin of IC1509 and
each pin of CN1502 and service it if defective.
→ CN1502
IC1509 61PIN
→ CN1502
IC1509 59PIN
No
Replace DVD MECHANISM & DVD MAIN CBA
ASSEMBLY.
Check the line between each pin of CN1502 and
each pin of IC1509, and service it if defective.
No
→ IC1509
CN1502 7PIN
→ IC1509
CN1502 1PIN
→ IC1509
CN1502 5PIN
→ IC1509
CN1502 3PIN
→ IC1509
CN1502 9PIN
1-11-7
→ JK1504
VIDEO-IN 1 (AV1)
→ CN1800 21PIN
DTV-Y
→ CN1800 23PIN
DTV-C
→ JK2001
VIDEO-IN 2 (AV2)
→ TU1800 11PIN
TUNER-VIDEO
No
Check the ECO+5V, ECO+9V
line and service it if defective.
20PIN VIDEO-Y/CVBS-IN
22PIN VIDEO-C-IN
51PIN VIDEO-Y(I/P)-OUT
55PIN VIDEO-Y(I)-OUT
52PIN VIDEO-Pr/Cr-OUT
53PIN VIDEO-Pb/Cb-OUT
57PIN VIDEO-C-OUT
E9TFCTR