Sharp XR-1X Serviceanleitung Seite 44

XR-1X
Checking the RGB
signals
Send RGB signals from
INPUT 1. Use buttons on
the main unit or the remote
control to select INPUT 1.
YES
Is image displayed
normally?
NO
Are picture signals sent to
TL3002, TL3003, and
TL3004?
YES
Is the signal with the same
frequency as TL3015 sent
to IC3005 pin (30), and the
same frequency as
TL3016 to IC3005 pin(31)?
YES
Is 3.3 V applied to
TL1773?
YES
Is 3.3 V applied to
TL1734?
YES
Check IC3005 and
peripheral circuits.
Downloaded from www.Manualslib.com
YES
Check connection of
NO
FB3011, FB3012, and
FB3013.
NO
Check IC3002 and
peripheral circuits.
NO
Check IC1773 and
peripheral circuits.
NO
Check IC1734 and
peripheral circuits.
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