No Display - Dynex DX-40L260A12 Service Manual

40"LCD TV

3. No display

Yes
Check the LVDS cable
Yes
Panel Vcc = 12 V?
Yes
Replace the Panel
No display
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
16
Best Buy DX-40L260A12
No
Replace the main board
No
Check the B/L
signal is available?
Yes
Power board output ＝24 V？
Yes
Replace the power board
Replace the Panel
No
Replace main board
No