No Display - Panasonic TH-55LFV50U Service Manual

5.3 No Display

Yes
Check the LVDS cable
Yes
CN416
37/38/39/40= 12V?
Yes
Replace the Panel
No display
(LED No power)
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
CN422 Pin 13/14 =5V
CN405 Pin 1/2/3 =12V?
CN405 Pin 5/6/7 =24V?
Yes
Power board
CN921 Pin 1/2/3/4/5=24V
CN922 Pin 1/2/3/4/5=24V
CN926 Pin 5/6/7=24V
CN925 Pin 4/5/6=12V
Yes
Replace the Panel
12
No
Replace the main board
No
Replace main board
Replace the power board
No