Samsung N64D - No Video (Video CVBS)

4-16
4. Troubleshooting
4-1-6. No Video (Video CVBS)
Symptom No video with CVBS.-
Major
checkpoints
Check your source on the TV.
Check your source content.
Check all connections.
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-
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Diagnostics
40” 52”
No
Check CN706(AV1), CN805(AV2)
Change the Main PCB
40” : BN44-00264A
52” : BN44-00267A
Power indicator LED is off.
Lamp(Backlight) on, no video
No
Check the video source and
check the connection of video cable
Yes
Check IC201 (Saturn4)
Change the Main PCB
40” : BN44-00264A
52” : BN44-00267A
No
No
Does the digital data appear at
Pin #16,17,34,35 (LVDS Data clk)
of LVDS connector?
Does the CVBS data appear at
V3CVBS(AV1), COMY(AV2)?
No
Please, Contact Tech support
Check the LVDS cable?
Replace the LCD panel?
Yes
Input the video source properly.
Yes
Yes
2
Check a set
in the ‘Stand-by mode’.
4
Caution Make sure to disconnect the power before working on the IP board.