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1-11-6
E3B90TR
Are the video signals outputted to each pin of
IC1509?
Yes
Yes
No
Check the periphery of JK1504 from Pin (30) of
IC1509 and service it if defective.
Check the periphery of JK2001 from Pin (22) of
IC1509 and service it if defective.
Check the periphery of JK1505 from Pin (38, 39,
40) of IC1509 and service it if defective.
Check the periphery of JK1510 from
Pin (36) of IC1509 and service it if defective.
Check the periphery of JK1510 from
Pin (34) of IC1509 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 (JK1510)?
Are the chroma signals outputted to the
S-VIDEO OUT terminal (JK1510)?
No
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 composite video signals outputted to
the VIDEO OUT terminal (JK1505)?
Are the video signals outputted to each pin of
CN1502?
Replace the DVD MECHANISM & DVD MAIN
BOARD ASSEMBLY.
Check the line between each pin of CN1502 and
each pin of IC1509, and service it if defective.
Are the video signals shown above inputted into
each pin of IC1509?
Yes
No
No
CN1502
VIDEO-Y(I/P)-OUT
24PIN
CN1502
VIDEO-Y(I)-OUT
30PIN
CN1502
VIDEO-Pr/Cr-OUT
26PIN
CN1502
VIDEO-Pb/Cb-OUT
28PIN
CN1502
VIDEO-C-OUT
VIDEO-Y(I/P)-OUT
VIDEO-Pr/Cr-OUT
VIDEO-Pb/Cb-OUT
VIDEO-C-OUT
22PIN
IC1509
VIDEO-Y(I/P)-OUT
51PIN
IC1509
VIDEO-Y(I)-OUT
55PIN
IC1509
VIDEO-Pr/Cr-OUT
52PIN
IC1509
VIDEO-Pb/Cb-OUT
53PIN
IC1509
VIDEO-C-OUT
57PIN
IC1509
Y-OUT
36PIN
IC1509
C-OUT
34PIN
IC1509
VIDEO-OUT 1 (AV1)
30PIN
IC1509
VIDEO-OUT 2 (AV2)
22PIN
IC1509
VIDEO-Y
40PIN
IC1509
VIDEO-Pr/Cr
39PIN
IC1509
VIDEO-Pb/Cb
38PIN
CN1502
→
IC1509
24PIN
CN1502
→
IC1509
26PIN
CN1502
→
IC1509
28PIN
→
IC1509
22PIN
51PIN
VIDEO-Y(I)-OUT
CN1502
→
IC1509
30PIN
55PIN
52PIN
53PIN
57PIN
CN1502
A
Check the AL+5V(2) , AL+9V
line and service it if defective.
Replace IC1509.
Yes
No
Is 5V voltage supplied to Pin(27,29,47,63) of
IC1509?
Is 9V voltage supplied to Pin(75) of IC1509?