No Picture On The External Monitor - Sharp LC-32LE600E Service Manual

<When an external monitor is connected>
No picture appears on external monitor during the tuner (U/V)
reception. (Tuner input, EXT1 output)
Checklist:
1) Are input terminal on back of TV and "INPUT SOURCE" button
set "INPUT SOURCE "appropriately. set to EXT***.
2) Is SCART-CABLE disconnected or connected improperly? ••• Connect it correctly as per the operation manual.
Is the video signal outputted to pin (19) of SCART1 (SC503)?
Is the video signal (SC1-VOUT) outputted from pin (2) of IC504
(75Ω_driver)?
Is video signal (CVBS_TU_OUT) input to pin (4) of IC507?
Is video signal (TUNER_CVBS) outputted from emitter of
Q1102?
Is video signal (VIDEO) outputted from pin (6) of TUNER
(TU1102)?
Check IF5V power supply pins (3), 12C-line pins (9) and (8) of
tuner (TU1102) and peripheral circuits.

No picture on the external monitor (6)-1

NO
NO
NO
NO
NO
LC-32/40/46LE600E/RU/S (1st Edition)
on the remote control set up correctly? ••• See the operation manual and
YES Check SCART1, external connection or input setting.
YES Check SCART1 (SC503) and peripheral circuits.
YES Check IC507 and peripheral circuits.
YES Check IC3303 and peripheral circuits.
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