Read Sharp XG-C455W (serv.man5) Service Manual online
XG-C455W/PG-C355W
5 – 6
S-VIDEO check
Send S-Video signal (color signal) from S-Video Terminal. Select
S-Video using keys on the main unit or the remote control.
S-Video using keys on the main unit or the remote control.
Is image displayed normally?
YES
End
NO
Is image displayed in black and white?
YES
Check S-VIDEO terminal and peripheral circuits of Q2603 and
SC2701.
SC2701.
NO
Is S-VIDEO signal (Y) sent to TL2606?
NO
Check S-VIDEO terminal and peripheral circuits of Q2601 and
SC2701.
SC2701.
YES
Is 1.8 V applied to TL2613?
NO
Check IC2605 and peripheral circuits.
YES
Is 3.3 V applied to TL1723?
NO
Check IC1703 and peripheral circuits.
YES
Is 3.3 V applied to TL1734?
NO
Check IC1713 and peripheral circuits.
YES
Check IC2602 and peripheral circuits.
VIDEO check
Send VIDEO signal from VIDEO Terminal. Use buttons on the
main unit or the remote control to select VIDEO.
main unit or the remote control to select VIDEO.
Is image displayed normally?
YES
End
NO
Is VIDEO signal sent to TL2605?
NO
Check VIDEO terminal and peripheral circuits of Q2602 and
SC2701.
SC2701.
YES
Is 1.8 V applied to TL2613?
NO
Check IC2605 and peripheral circuits.
YES
Is 3.3 V applied to TL1723?
NO
Check IC1703 and peripheral circuits.
YES
Is 3.3 V applied to TL1734?
NO
Check IC1713 and peripheral circuits.
YES
Check IC2602 and peripheral circuits.
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