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4. Troubleshooting
4-1-5. No Video (Video CVBS 1, 2)
Symptom
Audio is normal but no picture is displayed on the screen.
-
Check the Video CVBS source
-
Major
Check the SEMS03.
-
checkpoints
This may happen when the LVDS cable connecting the Main Board and the Panel is disconnected.
-
Lamp(Backlight) on, no video?
Diagnostics
check the connection of video cable?
Does the CVBS data appear at
4
Does the digital data appear at
2
Pin #19,20,34,35 (LVDS Data clk)
Caution
Make sure to disconnect the power before working on the IP board.
4-12
All manuals and user guides at all-guides.com
Power indicator LED is off.
Yes
Check the video source and
Yes
R5030(AV1), L5002(AV2)?
Yes
TP8007 (FBE_HSYNC_IN)
of LVDS connector?
Yes
Check the LVDS cable?
Replace the LCD panel?
No
Check a set
in the 'Stand-by mode'.
No
Input the video source properly.
Check JA5004 or JA5005
No
Change the Main Assy
BN94-02709A
Check IC8003 (FBE)
No
Change the Main Assy
BN94-02709A
No
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