Sharp DV-NC200SB, Руководство по обслуживанию

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H9941TS
Check the periphery of JK1403 from Pins (10, 11,
13) of IC1402 and service it if defective.
Check the periphery of JK1401 from
Pin (5) of IC1403 and service it if defective.
Check the periphery of JK1401 from
Pin (7) of IC1403 and service it if defective.
Are the video signals outputted to the specific
output terminal?
Are the component video signals outputted to the
component video out terminal (JK1403)?
Are the luminance signals outputted to the
S-OUT terminal (JK1401)?
Are the chroma signals outputted to the
S-OUT terminal (JK1401)?
Yes
Check the line between each pin of IC1401 and
each pin of IC1402 on the Main CBA, and service
it if defective.
IC1401 3PIN
→
IC1402 8PIN Pr/Cr
IC1401 13PIN
→
IC1402 3PIN S-Y(I/P)
IC1401 1PIN
→
IC1402 6PIN Pb/Cb
No
Replace IC1402. Check DVD-P-ON+5V line
and service it if defective.
Is 5V voltage supplied to Pin(4,12) of IC1402?
No
No Yes
No
No
No
Are the video signals inputted into each pin
of IC1402?
(S-Y, S-C)
Yes
IC1402 8PIN Pr/Cr
IC1402 3PIN S-Y(I/P)
IC1402 6PIN Pb/Cb
Are the video signals outputted to each pin
of IC1402?
Yes
IC1402 10PIN Pr/Cr
IC1402 13PIN S-Y(I/P)
IC1402 11PIN Pb/Cb
B