weirdo (29-09-13)
I'm with mick, when "tap testing", while you've got the back off have a go and give the FFC,s a wiggle that come from the control pcb, more than once have seen them cause similar issues...
OR, you could try the special LG percussion test tool featured in a video that was hosted here sometime back.
looked alot like a small baseball bat, but seemed to get results.
now i think of it we scrapped one of those big LG's the other day and i'm sure the fan was ok, (screen smashed during move, either that or thing had given up the ghost and they decided to move to get a new one).
Had a pretty good integra amplifier come in the other day for insurance assessment after being "dropped" during a move, anyway it was a bit bent on the outside, then i opened it, the inside was smash beyond recognition, asked the cust over the phone what happened to it, he dropped it while walking down the stairs and it fell down a few, the transformer had come free and there was nothing in less than a few pieces inside, it was like an un-named terrorist group had declared jehad's on all onkyo and subsidiaries, and this was being made an example, needless to say it was scrap. but if your insured, a good way to replace some broken shit!
When I explained to the guy what avatar I wanted, that wasn't what I meant!
weirdo (29-09-13)
Thanks for the suggestions again guys
Will have a bit of a clean up in the shed to make some room (it's a bit of a mess in there) and dismantle the beast again for the percussion test.
best4less (29-09-13)
I have seen your shed and it would be easier for you to build another shed than to clean that one :P
When you do things right, people won't be sure that you have done anything at all
weirdo (29-09-13)
Everyone must remember this youtube LOL
How not to repair your plasma
Not quite sue if it is helpful in this case as it was for a Samsung TV but anyway:
I was given a 40" Samsung that randomly turned off or went into stand by.
Needless to say it took three full days for it to show the first symtoms here...
But I could confirm it and started to take it apart.
After replacing a few leaking caps and no other obvious signs of faults I tried it again only to find out that fixing the caps caused the problem to appear within 30 minutes
Long hours later later with checking all solder points with a magnifying glass I reached the point where I remembered my old teacher saying that freezing some electronics can show parts that are about to fail.
Got myself 2 cans of ice spray and started spraying...
Half a day and some cans of beer later I was able to narrow it down to a small area of the circuit board - but with no integrated circuits around...
Shortly before the TV went off it started a slight hissing noise that I could not locate anywhere but when spraying the located area the hissing stopped and the TV stayed on, not spraying during the hissing and it went off shortly after.
Turned out that a Zener diode was about to give up, replacing it stopped the hissing as well as the turn off problem.
So maybe if all fails the good old icing will help to locate the problem in your case too?
Tomtom GO730 ,Navcore 9.004 ,Bootloader 5.5256 ,Map :Australia 845.2661ttmaps and Tomplayer on 16GB SDHC class6Password for all my files: downunder
weirdo (29-09-13)
If in doubt go the australian way of fixing....
If you can't make it work, use a bigger hammer
Tomtom GO730 ,Navcore 9.004 ,Bootloader 5.5256 ,Map :Australia 845.2661ttmaps and Tomplayer on 16GB SDHC class6Password for all my files: downunder
Seems to be a Lg month
Just pealing back the cover gave the game away.
Our set would actually turn on if you warmed the room up (20c)
But try turn the TV on first thing in the morning (10c) and it just goes into the "turn off loop"
(Relay clicking on, 2 clicks, a pause, then 1 click off)
Obviously the situation wasn't going to get any better after looking at those Caps!
As weirdo and other have mentioned, there is a barrel fan and small computer fan
The barrel fan is spotless
The computer is filthy
No idea if either work yet, will get the caps done first.
For a TV that is probably worth $300 today, if that.
All i can say is it weighs 50kg and probably draws enough power to heat the room
Last edited by ol' boy; 05-08-17 at 06:43 PM.
If u want to go on an expedition get a Land Rover, if u want to come home from an expedition get a Landcruiser!
Simple Repair kit available:
Cheap Caps:
Last edited by ol' boy; 06-08-17 at 07:28 AM.
If u want to go on an expedition get a Land Rover, if u want to come home from an expedition get a Landcruiser!
Our local Aldi had some Braun 60" 4k UHD TV's for --- wait for it ----- $799 Yep. $799...
Well, replaced every Cap on the PSU
Even though only 5 had popped
Board back in TV
TV back on wall and going better than ever
Out of interest, it was an October 2007, LG 60" Plasma, (60PC1D) 6.25 Amp current draw when running!!!!!
10 years from an LG product, i am amazed!!!
Caps cost $16, hopefully get another 5 years out of it, probably get more, everything else seemed fine.
Just the cheap horrible Samwha capacitors used, now they are a different brand, might last.
Last edited by ol' boy; 08-08-17 at 10:04 AM.
If u want to go on an expedition get a Land Rover, if u want to come home from an expedition get a Landcruiser!
Good job
Did someone do a little white poo on your power board ?
Might have been a vegan
I have an 50" LG plasma where the screen was going purple on and off for the last 3wks.
The picture starts to fade and screen goes mostly purple with white static spotty reception (like the analogue days where reception was poor); both FTA or using HDMI.
The last 3 days the screen stayed mostly purple and when changing channels, the previous screen was still there (frozen picture), was still purple but faded over time (just like a burnt in picture)
The picture has become unwatchable.
I guess it's given up the ghost after about 12yrs.
I also have a LG 42in LCD, about 4yrs old that is doing the same as others posted with turning off after about 30seconds of being on.
This continues like this for about 10min. Very frustrating when trying to watch something, and the TV keeps turning off.
Not sure what to do about it as it's outside the warranty.
Almost turns you off from buying LG TV's.
Last edited by Xplorer; 06-09-17 at 11:24 PM.
Hardly surprising for a consumer grade product.
All products fail. For the last thirty six years I have been repairing consumer grade products.
Sadly, expectations of reliability have risen as build quality has decreased.
TVs are now no more than commodities, discarded upon failure.
Wall mounting without sufficient air flow (ignoring manufacturers' recommendations); lack of dust removal, all contribute to premature failure.
Main PCBs have BGA SOCs with in excess of 600 balls that attempt to adhere to a vertically mounted PCB. It is surprising that the product lasts beyond the warranty period.
Lower your expectations of mass produced consumer products. Built to a price point, with "loss leaders" being the main focus of sales staff.
The world has moved on from long term reliability; a situation which has forced me out of self-employment, and into a different trade.
HVAC is my second incarnation; far more rewarding, both financially and mentally stimulating.
Commodities be damned; box shifting retailers only want sales. Once a purchase is completed, the revenue ceases.
So it goes; the price of TVs now is less than the cost of staying in a nice hotel for a weekend.
Here endeth the rant.
"The saddest aspect of life right now is that science gathers knowledge faster than society gathers wisdom." - Issac Asimov
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