LG OLED B7 clicking power board fault

[pioneer2000]

So looks like my 6 year old OLED B7 is on its last legs. Started randomly clicking constantly and struggling to turn on. Reading online this points to bad capacitors on the power board?

LG and Curry’s don’t want anything to do with it. Annoying as the power board was changed as part of a recall by LG during 2021, so no doubt they cheaped out on the replacement parts and now I’m suffering the consequences.

Would replacing the capacitors be doable myself or is this not as simple as some make out? Alternatively is there anyway to source a replacement power board?

Thanks

 

[pioneer2000]

A bit late to the thread but I had exactly the same issue, I also had the board changed under the recall.
If anyone has this problem it turns out it's the small black 12vDC relay switch which is at fault.
I replaced mine and all is good...a bit of soldering is required but cost was around £5 for the part.

Ah where did you source the replacement part from? I’m currently living with the issue and have been using a smart plug to turn the set on and off. Both Currys and LG have been unwilling to help.

 

[pioneer2000]

Hi mate, here's the part:

1Pc G5RL-1A-LN 12VDC Power Relay 4Pins 12A 250VAC | eBay UK

Model:G5RL-1A-LN 12VDC.

www.ebay.co.uk

Thanks, this is brilliantly useful, I’ll have to investigate but hopefully you’ve saved me quite a headache here

 

[pioneer2000]

Bah, so finally got round to swapping out the 12vdc relay linked above…. Still same clicking on powering on issue! Everything else looking ok, so unsure where to go with this now.

 

[pioneer2000]

Yeah my concern recently is that the tv is now complaining that it hasn’t run the pixel refresh process for too long. With it being OLED I imagine the panel is going to get messed up without this.

 

[pioneer2000]

Well I’ve now replaced the relay and all the mosfets, still the bloody thing clicks incessantly! Guess it’s a full new power board or the bin, which is a shame considering how expensive the set was back in the day. Reliability wise this LG oled has been woeful, worse than any TV I’ve ever owned.

 

[pioneer2000]

How come? ~7 years and one fault, plus a preventative swap?

I had the whole set swapped due to excessive screen burn, then LG swapped the power supply on recall when they were apparently setting on fire. Now the power supply has failed, no doubt because they cheaper out on the recall. So yes, probably 6/7 years but 2 sets and a replacement power supply and now it’s dead. Out of about 8 tvs I’ve probably owned over the years it’s only the OLED that’s become faulty.