42" LG LCD TV problems

Coullio · 01-07-2012, 06:02

I have a issue with a 42" LG LCD TV.The screen started to flicker and you could still see the TV, but now all you get is a black screen (sound ok). I switch the tv off at the wall and remove the plug. After about 5 mins I plug the tv back in and switch it on and all is ok. Any idea what the problem could be??

Nigel Goodwin · 01-07-2012, 09:28

Is it OK now? - or does it still go off after a while?.

There have been major problems with 42 inch LG LCD panels, with capacitors burning up inside them - presumably this starts off with intermittent problems before becoming permanent.

howardl · 01-07-2012, 09:57

But why only the 42"?
Don't they use similar capacitors in other size TV's?

Nigel Goodwin · 01-07-2012, 16:45

Quote:

Originally Posted by howardl

But why only the 42"?
Don't they use similar capacitors in other size TV's?

The LG 42's are the only sets where I've seen the capacitors inside the panel, normally they are on the inverter PCB. I've also never seen the capacitors burn-up before either, and it's not just one, it's all of them to various degrees.

They do fail in some of the cheap portable sets (Beko, Toshiba etc.) - but they are easy to replace (if you can find a source for them).

coachtrip_fan99 · 02-07-2012, 01:37

sorrry to hijack...... have lg 42" lcd tv...... no problem with picture....... but every now and then.. (maybe once per day) sound cuts out for approx 2 seconds.....

does this both from humax box connected by hdmi, and sky plus, also connected by hdmi.

not sure about internat tuner, not connected up.

01-07-2012, 06:02	#1
Coullio Forum Member Join Date: Nov 2001 Location: Aberdeen, Bonnie Scotland Posts: 358	42" LG LCD TV problems I have a issue with a 42" LG LCD TV.The screen started to flicker and you could still see the TV, but now all you get is a black screen (sound ok). I switch the tv off at the wall and remove the plug. After about 5 mins I plug the tv back in and switch it on and all is ok. Any idea what the problem could be??

01-07-2012, 09:28	#2
Nigel Goodwin Forum Member Join Date: Apr 2006 Location: North Derbyshire Posts: 41,789	Is it OK now? - or does it still go off after a while?. There have been major problems with 42 inch LG LCD panels, with capacitors burning up inside them - presumably this starts off with intermittent problems before becoming permanent.

01-07-2012, 09:57	#3
howardl Forum Member Join Date: Dec 2006 Posts: 4,909	But why only the 42"? Don't they use similar capacitors in other size TV's?

01-07-2012, 16:45	#4
Nigel Goodwin Forum Member Join Date: Apr 2006 Location: North Derbyshire Posts: 41,789	Quote: Originally Posted by howardl But why only the 42"? Don't they use similar capacitors in other size TV's? The LG 42's are the only sets where I've seen the capacitors inside the panel, normally they are on the inverter PCB. I've also never seen the capacitors burn-up before either, and it's not just one, it's all of them to various degrees. They do fail in some of the cheap portable sets (Beko, Toshiba etc.) - but they are easy to replace (if you can find a source for them).

02-07-2012, 01:37	#5
coachtrip_fan99 Forum Member Join Date: Jun 2009 Posts: 2,127	sorrry to hijack...... have lg 42" lcd tv...... no problem with picture....... but every now and then.. (maybe once per day) sound cuts out for approx 2 seconds..... does this both from humax box connected by hdmi, and sky plus, also connected by hdmi. not sure about internat tuner, not connected up.

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42" LG LCD TV problems