No Display - Panasonic TC-L42U5H Service Manual

5.3 No Display

Yes
Check the LVDS cable
Yes
Panel Vcc = 5V?
Yes
Replace the Panel
No display (LED No
power (LED "Off")
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
No
Check the P/S and
ON/OFF
signal is available?
Yes
Power board output＝12/24V?
Yes
Replace the Panel
11
No
Replace the main board
No
Replace main board
No
Replace the power board