Sharp LC-19S7E-BK Service Manual page 36

LC-19S7E-BK LC-26S7E-BK LC-32S7E-BK
Does not the picture of the component video signal input to Component go out?
TERMINAL_UNIT:
Is Component Y/Pb/Pr signal sent to pin (2)/Y, (4)/Pb, (6)/Pr of
AV1(CN1201) ?
MAIN_UNIT:
Is Component Y/Pb/Pr signal sent to pin (25)/GIN2, (23)/BIN2,
(26)/RIN2 of IC U4201?
Refer to "The picture doesn't appear in all modes."
No picture appears on SCART1 - connected monitor during the tuner (U/V) reception.
Checklist:
1) Is the Signal Type (item) in MENU-Option-Input Select equal to Signal Type of an external device? ...Set it to "CVBS"
2) Is ANT-CABLE disconnected or connected improperly? ...Connect it correctly as per the operation manual.
3) The picture is sent to the monitor in a CVBS signal if the source during display is ATV, CVBS of SCART1, SIDE AV.
When sent by component, etc., that signal is not sent to the monitor.
4) When the monitor picture is not sent and is not displayed on the monitor, refer to "No picture" for each terminal.
5) The video output from SCART1 is not the monitor output (output of the picture now watching).
The picture of the last selected TV channel is always sent to SCART1. (Specification)
TERMINAL_UNIT:
Is CVBS signal output into pin (19) of CN1901 (SCART1)?
Is TUNER_CVBS signal output into pin (21) of CN1901 (SCART1)?
Refer to "The picture doesn't appear in all modes."
AVOUT:
No picture from SCART1 appears on AVOUT-connected monitor.
NOTE: Normally, if the screen during display is sent to SCART1, no picture is sent to AVOUT.
Checklist:
1) Is the Signal Type (item) in MENU-Option-Input Select equal to Signal Type of an external device? ...Set it to "CVBS"
2) The picture is sent to the monitor in a CVBS signal if the source during display is TV, CVBS of SCART1, SIDE AV.
When sent by component, etc., that signal is not sent to the monitor.
3) When the monitor picture is not sent and is not displayed on the monitor, refer to "No picture" for each terminal.
4) The video output from SCART1 is not the monitor output (output of the picture now watching).
The picture of the last selected TV channel is always sent to SCART1. (Specification)
TERMINAL_UNIT:
Is CVBS signal output into pin (2) of CN1205?
Is CVBS signal output from pin (39) of IC U4201 into pin (2) of
CN1205 ?
Refer to "The picture doesn't appear in all modes."
↓
↓
↓YES
↓YES
< During external connection > No picture on the monitor (1)
↓
↓
↓
↓NO
↓NO
< During external connection > No picture on the monitor (2)
↓
↓
↓
↓NO
↓NO
NO
Check the setting of an external input device that connects of
CN1201.
NO
Check the line between IC U4201 and CN1201.
YES
Check the setting of an external input device that connects of
CN1901.
YES
Check the line between CN1901 and U4201
PIN(38)/CVBSOUT2.
YES
Check the setting of an external input device that connects of
CN1205.
YES
Check the line between CN1205 and IC U4201.
36