4-10
4. Troubleshooting
4-1-6. No Picture (Video_CVBS)
Symptom
Audio is normal but no picture is displayed on the screen.
-
Major
checkpoints
Check the Video Source
-
Check the SETD-10 (SX1)
-
This may happen when the LVDS cable connecting the Main Board and the Panel is disconnected.
-
Diagnostics
No
Check a connection harness.
No
Power Indicator is off.
Lamp on, no picture.
Yes
Does the signal appear at
R799(AV1)/L701_SAV(AV2)?
No
Please, Contact Tech support.
Check a LVDS cable?
Replace lcd panel?
Yes
Check a A/V cable and video signal.
Yes
1
2
Does the digital data appear at the
output of LVDS Signal?
No
Check a IC1102.
Change a main PCB ass’y.
Caution
Make sure to disconnect the power before working on the IP board.
Содержание LN22C450E1M
Страница 6: ...1 4 1 Precautions Memo ...
Страница 31: ...4 4 4 Troubleshooting WAVEFORMS 1 R G B Output Signal PC_R Signal PC_G Signal PC_B Signal ...
Страница 33: ...4 6 4 Troubleshooting WAVEFORMS 1 Signal of HDMI Data 2 Digital Output Data ...
Страница 38: ...4 11 4 Troubleshooting WAVEFORMS 1 AV_CVBS Output Signal ...
Страница 40: ...4 13 4 Troubleshooting WAVEFORMS 1 I2C Data 3 Speaker out ...
Страница 102: ...6 9 6 Wiring Diagram 6 2 Wiring Picture HD MODEL C450 22 HD MODEL C450 FHD MODEL C530 C550 ...