Question about LG Televison & Video
I have sound but no picture. I don't see backlight but I can see image if I use a flashlight
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Posted on Jan 02, 2017
SOURCE: LG 50ln5100-ub flat screen tv
You have lost your backlights and this is very common for the LN series LG TVs...they use 6 volt lamps and if one opens the entire string goes out, kind of like the old Christmas lights used to be. First thing to check though if your able is the voltage on both sets of cables, hook your meter to one side of the power board that supplies the lamps and see if you have voltage for a second or 2 when you power the set up and then it drops off to almost nothing, if you see this unhook the plug that goes to the lamps in the panel and see if the voltage holds at a couple hundred volts, if it does its lamps in the panel and I think you will find this is the case, if it happens the voltage drops down or isn't any to start with its the power board...Good luck
Posted on Feb 05, 2018
This is a LED TV so there won't be an inverter board, they're only on LCD sets, what is wrong with your set is you have shorted LED lamps in the panel, its a common issue with this model TV, Ive replaced dozens of them in the last couple yrs, its not a fun job to do as the panel can be damaged very easily if extreme care isn't taken when handling it, watch some youtube vids to get an idea of how to do it...Good luck!!
Posted on Apr 04, 2018
SOURCE: Repairing TV,sound works, see screen w/flashlight. However no backlights show,unsure what board I need to replace I have a LG 50LN5100. What is the actual board that needs replacement picture below.
Ohh,good news,Abctay.com is a Sharp tv parts online store,SHARP RUNTKA903WJQZ QPWBS0398SNPZ(1Y), PSD-0863 POWER SUPPLY BOARD
Posted on Dec 20, 2018
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