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 CN201?
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 CN201?
No
Change the main board.
Please, contact Tech
support
Содержание UN46C6900VF
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Страница 53: ...4 13 4 Troubleshooting Location Main TOP CN401 IC901 Location Main BOTTOM ...
Страница 54: ...4 14 4 Troubleshooting WAVEFORMS 1 2 PC Input V Sync H Sync 3 LVDS Out CLK ...
Страница 56: ...4 16 4 Troubleshooting Location Main TOP CN1902 IC601 IC1101 Location Main BOTTOM ...
Страница 57: ...4 17 4 Troubleshooting WAVEFORMS 4 5 HDMI Input CLK 6 Tuner CVBS Out Pattern Grey Bar 7 TS DATA Out Clk Data 0 ...
Страница 59: ...4 19 4 Troubleshooting Location Main TOP TU801 IC1101 CN1902 Location Main BOTTOM ...
Страница 60: ...4 20 4 Troubleshooting WAVEFORMS 5 Tuner CVBS Out Pattern Grey Bar 6 Eagle Out Clk H Sync ...
Страница 62: ...4 22 4 Troubleshooting Location Main TOP TU801 IC1101 CN1902 Location Main BOTTOM ...
Страница 63: ...4 23 4 Troubleshooting WAVEFORMS 5 Tuner CVBS Out Pattern Grey Bar 7 TS DATA Out Clk Data 0 ...
Страница 65: ...4 25 4 Troubleshooting Location Main TOP R528 IC1101 CN1902 Location Main BOTTOM ...
Страница 66: ...4 26 4 Troubleshooting WAVEFORMS 5 Tuner CVBS Out Pattern Grey Bar ...
Страница 68: ...4 28 4 Troubleshooting Location Main TOP IC1101 CN1902 R503 R502 R501 Location Main BOTTOM ...
Страница 69: ...4 29 4 Troubleshooting WAVEFORMS 5 Tuner CVBS Out Pattern Grey Bar 9 Component Input Y Pb ...
Страница 71: ...4 31 4 Troubleshooting Location Main TOP CN407 IC1101 IC301 Location Main BOTTOM ...
Страница 72: ...4 32 4 Troubleshooting WAVEFORMS 0 Audio Input Sign Wave I2S Input Clk Data Audio Amp Out Sign Wave ...