4-2
4. Troubleshooting
Simple flow chart of malfunction
Yes
No
No
Does the TV turn on?
Can you see anything
on the screen?
Yes
Can you see
OSD menu running on
the screen?
Check LVDS cable connected
to Main Board.
If necessary,
replace the Main Board
Yes
Can you see Digital
Channel broadcast ?
No
Replace the Main Board
Check the Power Cord
Yes
No
No
is any sound of TV
when RF signal
connected?
Yes
A5V appear at
the pin 4 of CN1001?
Yes
Check LVDS
cable connected.
If necessary replace the
T-con board.
No
Change the main board.
No
Check 18p cable.
If necessary, replace the
SMPS board.
Yes
B13V appear at the
pin 13,15,17 of
CN1001?
No
Change the main board.
Please, contact Tech
support
Summary of Contents for UN40C8000XM
Page 10: ...4 3 4 Troubleshooting ...
Page 16: ...4 9 4 Troubleshooting Location Main TOP Location Main BOTTOM ...
Page 18: ...4 11 4 Troubleshooting Location Main TOP Location Main BOTTOM ...
Page 19: ...4 12 4 Troubleshooting WAVEFORMS 1 PC Input V Sync H Sync 2 LVDS Out CLK ...
Page 21: ...4 14 4 Troubleshooting Location Main TOP Location Main BOTTOM ...
Page 22: ...4 15 4 Troubleshooting WAVEFORMS 3 4 HDMI Input CLK 5 TS DATA Out Clk Data 0 ...
Page 24: ...4 17 4 Troubleshooting Location Main TOP Location Main BOTTOM ...
Page 25: ...4 18 4 Troubleshooting WAVEFORMS 6 Tuner CVBS Out Pattern Grey Bar 7 Eagle Out Clk H Sync ...
Page 27: ...4 20 4 Troubleshooting Location Main TOP Location Main BOTTOM ...
Page 28: ...4 21 4 Troubleshooting WAVEFORMS 6 Tuner CVBS Out Pattern Grey Bar 7 Eagle Out Clk H Sync ...
Page 30: ...4 23 4 Troubleshooting Location Main TOP Location Main BOTTOM ...
Page 31: ...4 24 4 Troubleshooting WAVEFORMS 7 Eagle Out Clk H Sync 9 Component Input Y Pb ...
Page 33: ...4 26 4 Troubleshooting Location Main TOP Location Main BOTTOM ...