Sharp LC-26SA1E, Service Manual, Page: 43 / 164

LC-26SA1E/RU, LC-32SA1E/RU
6 – 9
<During external connection> No picture on the monitor (2)
SCART1:
No picture appears on EXT1 - connected monitor during the tuner
(U/V) reception.
Checklist:
1) Are input terminal on back of TV and “INPUT SOURCE” button on the remote control set up correctly?
•••
See the operation manual and
set “INPUT SOURCE” appropriately.
2) Is the Signal Type (item) in MENU-Option-Input Select equal to Signal Type of an external device?
•••
Set it to “CVBS”, “Y/C” or “RGB”.
3) Is ANT-CABLE disconnected or connected improperly?
•••
Connect it correctly as per the operation manual.
4) The picture is sent to the monitor in a CVBS signal if the source during display is TV, CVBS or Y/C of EXT1-3.
When sent by component, etc., that signal is not sent to the monitor.
5) When the monitor picture is not sent and is not displayed on the monitor, refer to “No picture” for each terminal.
6) The video output from EXT1 is not the monitor output (output of the picture now watching).
The picture of the last selected TV channel is always sent to EXT1. (Specification)
Is video signal sent to pin (19) of SCART1 (J1101)?
YES Check SCART1, external connection or input setting.
NO
Is video signal (V-OUT1) sent from pin (2) of IC1102 (SW)? YES Check SCART1 (J1101) and peripheral circuits.
NO
Is video signal (V-OUT1) sent from pin (195) of IC3002 (VCT)? YES Check IC1102 (SW), Connector (P1101, SC2702) and peripheral
circuits.
NO
Is video signal (CVBS) sent to pin (191) of lC3002 (VCT)? YES Check power supply of IC3002 (VCT) and peripheral circuits.
NO
Is video signal (CVBS) sent from pin (17) of IC201 (IF-DEMOD)? YES Check CONNECTOR (P201, SC2705) and peripheral circuits.
NO
Is video signal (IF) sent from pin (11) of tuner (TU201)? YES Check IC201, FL201 (SAW-FIL), Q202 and peripheral circuits.
NO
Check 5/35 V power supply pins (7) and (9), I2C line pins (5) and
(4) of tuner (TU201) and peripheral circuits.