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4. No display
Yes
Check the LVDS cable
Yes
Panel Vcc = 12V?
Yes
Replace the Panel
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No display (LED Red)
Check TV is under control and power
on/off by remote control and power key?
Yes
Check the backlight is
"On"?
No
Reinsert or replace the
LVDS cable
No
Replace the main board
30
No
Replace the main board
No
Check the B/L
signal is available?
Yes
Replace main board
Power board output＝12V?
Yes
Replace the power board
Replace the Panel
No
No
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