4-9
4. Troubleshooting
4-1-5. No Picture (Video_CVBS)
Symptom
Audio is normal but no picture is displayed on the screen.
-
Major
checkpoints
Check the Video Source
-
Check the M-star
-
This may happen when the LVDS cable connecting the Main Board and the Panel is disconnected.
-
Diagnostics
1
No
Check a connection harness.
No
Power Indicator is off.
Lamp on, no picture.
Yes
Does the signal appear at
C507, C509 of IC1102?
Check a LVDS cable ?
Replcelcd panel?
Please, Call to Samsung Co. LTD.
Yes
Check a A/V cable and video signal.
Yes
1
Caution
Make sure to disconnect the power before working on the IP board.
Содержание LA32C550J1R
Страница 24: ...4 4 4 Troubleshooting WAVEFORMS PC input V sink H sink R G B LVDS output...
Страница 26: ...4 6 4 Troubleshooting WAVEFORMS HDMI input RX_Data RX_Clk LVDS output...
Страница 28: ...4 8 4 Troubleshooting WAVEFORMS CVBS OUT Grey Bar LVDS output...
Страница 30: ...4 10 4 Troubleshooting WAVEFORMS LVDS output...
Страница 32: ...4 12 4 Troubleshooting WAVEFORMS I2S Data Speaker out...
Страница 75: ...6 1 6 Wiring Diagram 6 Wiring Diagram 6 1 Wiring Diagram LA32 37C550...
Страница 76: ...6 2 6 Wiring Diagram LA40 46C550...
Страница 79: ...6 5 6 Wiring Diagram 6 3 Wiring Picture...