Sharp XV-Z3100U Service Manual page 31

Main PWB check
Is 6 V applied to TL1731
and 13 V to TL1734?
YES
Is approx. 6 V applied to
TL1710?
YES
Is 1.5 V applied to
TL1703?
YES
Is 3.3 V applied to
TL1704?
YES
Is 1.5 V applied to
TL1705?
YES
Is 2.5 V applied to
TL1706?
YES
Is 5 V applied to TL1708?
YES
Is 3.3 V applied to
TL1707?
YES
Is 12 V applied to
TL1709?
YES
NO
Go to "Power supply
ballast PWB check".
NO
Check IC1713 and
peripheral circuits.
NO
Check IC1701 and
peripheral circuits.
NO
Check IC1702 and
peripheral circuits.
NO
Check IC1704 and
peripheral circuits.
NO
Check IC1703 and
peripheral circuits.
NO
Check IC1711 and
peripheral circuits.
NO
Check IC1705 and
peripheral circuits.
NO
Check IC1712 and
peripheral circuits.
XV-Z3100U/XV-Z3100/XV-Z3300/DT-510
Is 3.3 V applied to pin(1)
of IC1714?
Is 3.18 V applied to pin(1)
of IC2204?
Is 3.3 V applied to pin(1)
of S2001?
Are rectangular waves of
50 MHz and 48 MHz
supplied to pins (8) and (7)
of IC2206 respectively?
Check IC2001, IC2002,
IC2202, IC2203 and
peripheral circuits.
5 – 2
NO
YES
Check IC1714 and
peripheral circuits.
NO
YES
Check IC2204, 2207, 2208
and peripheral circuits.
NO
YES
Check that it is set to the N
side. Or remove S2001.
NO
YES
Check IC2206 and
peripheral circuits.