4-11
4. Troubleshooting
4-1-6. No Picture (S-VIDEO_Y,C)
Symptom
Audio is normal but no picture is displayed on the screen.
-
Major
checkpoints
Check the S-Video_Y,C source
Check the SEMT01(MT8226)
This may happen when the LVDS cable connecting the Main Board and the Panel is disconnected.
-
-
-
Diagnostics
1
2
No
Check a connection harness.
No
Power Indicator is off.
Lamp on, no picure.
Does the Y/C signal appear at C5104,
C5105 of IC5105?
No
Please, Contact Tech support.
Check a LVDS cable?
Replacea lcd panel?
Yes
Connect the s-video cable.
Operating a video player.
1
Yes
2
Does the digital data appear at the
output of LVDS (RA5104~RA5109)?
No
Check a IC5105
Change a main PCB ass’y
Yes
Caution
Make sure to disconnect the power before working on the IP board.
Содержание LE37A65*A
Страница 202: ...4 4 4 Troubleshooting WAVEFORMS 1 R G B Output Signal ...
Страница 204: ...4 6 4 Troubleshooting WAVEFORMS 2 Digital Output Data 3 Signal of HDMI Data ...
Страница 206: ...4 8 4 Troubleshooting WAVEFORMS 3 CVBS Output Signal 4 Tuner_CVBS Output Signal ...
Страница 208: ...4 10 4 Troubleshooting WAVEFORMS 4 CVBS Output Signal ...
Страница 210: ...4 12 4 Troubleshooting WAVEFORMS 2 Digital Output Data 5 Analog Signal Y C ...
Страница 212: ...4 14 4 Troubleshooting WAVEFORMS 6 The Signal are Inputed to IC2102 7 The Signal are Inputed to IC2104 ...
Страница 237: ...6 1 6 Wiring Diagram 6 Wiring Diagram 6 1 Wiring Diagram ...
Страница 238: ...6 2 6 Wiring Diagram ...
Страница 239: ...6 3 6 Wiring Diagram 6 2 Wiring Picture ...
Страница 242: ...6 6 6 Wiring Diagram Memo ...
Страница 246: ...1 4 1 Precautions Memo ...