Trying to repair My LG TV for 2 months now! I need some help!!!

Googi

Commendable
Dec 29, 2016
3
0
1,510
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Hi, Been trying to search around for some advice but I really need some help.
I have an LG 50PS70 and it stopped turning on. The Red Standby Light would show but when I hit the power button, the Tv would turn on, click, then turn back off.
So I replaced the Power Supply Board.
Nothing new
So I replaced the ZSUS board (Right side)
Now the TV turns on and stays on, with the blue light, but I don't see anything on screen anymore and I don't hear anything from the TV.

What could the issue be? I don't want to keep changing parts It's getting expensive!
Thanks
 

sizzling

Distinguished
Oct 18, 2006
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0
19,260
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Sounds like it had a power issue. Problem is when that happens it could have damaged other parts at the same time. Sorry but I think your wasting your time and money trying to fix it. Without every component on hand to try and see if it makes a difference you just don't know what is damaged.
 

Googi

Commendable
Dec 29, 2016
3
0
1,510
0


Is there a way to diagnose parts to find which is causing the issue?
 

Googi

Commendable
Dec 29, 2016
3
0
1,510
0
Thanks for the replies guys, the parts seem relatively cheap, is it a bad idea to remove some parts and then power on the tv to see if I get a picture? Like the Y or Z-sus boards?
 
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