LG 50PX5D WONT START - LG 37LC7D 37 in. LCD HDTV

You may need a new power supply for that unit. Does it show any lights or anything?

Clarification to my earlier post:
http://blog.coppelltvrepair.com/2010/10/vertical-or-horizontal-color-lines-in.html

Hope this helps!

Hello
There is some over current consumption when the set heats up. Just see whether its cooling fans are working well. It can't be predicted the fault, as it need a through check up.

Ur Main Tuner signal board is dead.Replaced the Main Tuner signal board will solved ur picture problems.

Use the audio jacks in the Monitor Output section. See pages 9 and 19 of the manual:
http://www.hdtvsolutions.com/pdf/50PX5D-0314-50px4dman.pdf

..ok, hmm here is your manual:

http://www.hdtvsolutions.com/pdf/50PX5D-0314-50px4dman.pdf

...specs:

http://www.hdtvsolutions.com/LG_Electronics-50PX5D.htm

..sample debugging FAQ's from LG:

http://www.lge.com/support/product_faq/list/PROD|01.jhtml

...and here is where you would contact your local service center:

http://www.lge.com/support/service_center.jsp

Don't try to order that product, even if it is something as simple as
the power cord without checking with LG's service department (or the
local one near you they recommend). Some parts are interchangable
but remember if you are not in the US, or have "strange international
voltages" and connectors they are required by local laws to only allow
an approved dealship or repair facility to handle your request.

WW

check inverter. adjust brightness and contrast.

Plasma tv's don't last long....buy a led tv.

Your friend is probably right. It will either be the Y-sustain brd or the Z-sustain brd. I have seen both bad at one time or another, The part numbers are on the boards.

the tv probably got banged or something spilled onto it