Sharp LC-37XD10 Service Manual page 54

Lcd colour television
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LC-37XD10E/RU
Note: The SD signal (576i 480i) alone passes through the FRC circuit. (The HD signal does not go through.)
Does the image appear with the HD
signal, but not with the SD signal ?
YES
Is the power supplied to IC3301
(FRC)?
Is there the FRC-IN signal input at pins
(142) and (13) of IC3301?
Check the soldering condition.
YES
Replace IC3301(FRC).
FRC circuit failure
Does anything unusual (which or
blackish screen, block noise, for
example) appear on the screen?
YES
Is there the specified RESET-A signal
input at pin (39) of IC3301(FRC)?
(60 ms delay design)
NO
Check "RESET-A " signal pin(34) of
IC1710 (FPGA).
4 – 21
Does the image look unusual with
the power switch turned on?
YES
Check the connection between pin
(R22) of IC3002 (V-PRO.) and pin
(142) of IC3301 (FRC) as well as
that between pin (N20) of IC3302
and pin(13) of IC3301.

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