Sharp DV-NC200SS Service Manual page 38

(S-Y, S-C)
Are the video signals shown below inputted into
each pin of IC101?
IC101 13PIN R
IC101 1PIN G
IC101 3PIN B
IC101 12PIN R
IC101 2PIN G
IC101 5PIN B
Are the video signals outputted to each pin
of IC101?
IC101 14PIN R
IC101 15PIN G
IC101 4PIN B
Are the video signals inputted into each pin
of IC102?
IC102 8PIN R
IC102 6PIN G
IC102 1PIN B
Are the video signals outputted to each pin
of IC102?
IC102 10PIN R
IC102 11PIN G
IC102 15PIN B
Are the video signals outputted to the specific
output terminal?
Are the luminance signals outputted to the
S-OUT terminal (JK1401)?
Are the chroma signals outputted to the
S-OUT terminal (JK1401)?
Are the RGB video signals outputted to the
Scart jack (JK101)?
Are the composite video signals outputted to
Pin(19) of JK101 (Scart jack)?
Are the composite video signals outputted to
Pin(4) of IC751?
Are the "H" pulse inputted into Pins(9,10,11) of IC751?
Replace IC501.
A
Yes
Yes
Yes
Yes
Yes
No
No
No
Check the line between each pin of IC1401 and
each pin of IC101, and between each pin of CN2017
and each pin of IC101 on the Main CBA, and service
it if defective.
No
5PIN → IC101
IC1401
12PIN → IC101
IC1401
2PIN → IC101
IC1401
CN2017 14PIN → IC101
CN2017 13PIN → IC101
CN2017 12PIN → IC101
No
Is 5V voltage supplied to Pin(16) of IC101?
No
Check AL+5V line
and service it if defective.
Check the line between each pin of IC101 and
each pin of IC102 on the Main CBA, and service
it if defective.
No
IC101 14PIN → IC102
IC101 15PIN → IC102
4PIN → IC102
IC101
No
Is 5V voltage supplied to Pin(4,12) of IC102?
No
Check AL+5V line
and service it if defective.
Check the periphery of JK1401 from
No
Pin (5) of IC1403 and service it if defective.
Check the periphery of JK1401 from
No
Pin (7) of IC1403 and service it if defective.
Check the periphery of JK101 from Pins (10, 11,
No
15) of IC102 and service it if defective.
Yes
Check the line between Pin(4) of IC751 and JK101
and service it if defective.
Yes
Replace IC751.
1-11-6
12PIN R
1PIN G
3PIN B
12PIN R
2PIN G
5PIN B
Yes
Replace IC101.
8PIN R
6PIN G
1PIN B
Yes
Replace IC102.
H9941TS