Component Signal Check - Sharp XV-Z3000 Service Manual

XV-Z3000
DT-500
Component signal
check
Send component signal of
1080i (or 720P) from
INPUT 1 or INPUT 2.
Select INPUT 1 or INPUT 2
using keys on the main unit
or the remote control.
YES
Is image displayed
normally?
NO
Are picture signals sent to
TL3008, TL3007, and
TL3006?
YES
Is 3.3V applied to TL1707?
YES
Is 3.3V applied to pin(5) of
Q3002?
YES
Is 3.3V applied to TL1704?
YES
Check IC3001 and
peripheral circuits.
YES
End
Check IC4002 and the
NO
peripheral circuits.
NO
Check IC1705 and
peripheral circuits.
NO
Check Q3002 and
peripheral circuits.
NO
Check IC1702 and
peripheral circuits.
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