Acoustic Solutions Flashing Led

gibbsy09

Standard Member
Hi my 10 years old 42" Acoustic solutions model
lcd42761f1080p just over the past year has been acting up a bit, first when I turned it on the led would flash, but then stop I would press the remote and it would come on, but sometimes this would fail and I would disconnect the power leave for a minute turn it on first from the power button on the TV, press the remote and it would come back on, I just put up with this carry on because it had gave me ten good years lol.

though just in the last two months its gotten slightly worse, it's working fine then all of a sudden just turns off, then flashing blue led and now it takes ages to fart about and get the bugger back on, I now know exactly when it will come back on, when I press the TV power button there is a distinct sound inside the TV, like something is kicking in and turning on and I know the majority of the time it will eventually come on, the led may flash a few times but then it stops, I press the remote and it will come on, or it will flash again, but eventually it gets there, the only time I know it won't play ball is when the led constantly flashes, then there's no way it's coming on hope you get the picture, no pun intended.

I'm kind of getting fed up now and I'm ready to launch it lol, and now I've done some googling, and seen some threads and a couple of videos with guys baking there lg motherboard in the oven, obviously mines is not lg but I'm thinking of giving it a try nothing to lose really, but before I do I would like to find out if this problem, is caused by the main motherboard, or the PSU, and I don't know if you can bake the PSU lol, I've looked for replacement boards but not had much luck so far.

so any help from someone who has had a similar problem with this TV, or any other TV and has found a solution, Thanks.
 

JayCee

Distinguished Member
Don't bother attempting to bake anything.
The fault is likely to be duff capacitors in the psu so if you can source a replacement board cheaply it may be worth a go.
 

gibbsy09

Standard Member
Don't bother attempting to bake anything.
The fault is likely to be duff capacitors in the psu so if you can source a replacement board cheaply it may be worth a go.
Thanks for reply I was thinking PSU, but then I seen that thread on the baking the board, but yes I think you might be correctect I seen another video last night from a guy that does repairs, it was an alba he was repairing, but it had a similar fault to mine, he said the PSU were vesta boards and were cheap Japanese made boards, his board looked the same as mine and it had the same number apart from the last part, his was dash 4, my board is dash 3.

So he went on to say that a common fault with the board was the diodes going bad, the third one he tested had a short in it and when he removed it from the board it still had a short, so that will be my next move to borrow a multimeter and test the diodes, and if I find any dodgy ones I'll do what you said and try and source a cheap board, he changed the diode, but by the time I buy a solder bolt solder etc, probably cheaper swapping it out, the funny thing is when I was looking for a main board online I noticed the PSU boards as well but I was thinking it was the main board and never payed attention to the PSU boards, lol but I'll go back now and look, even though the guy said the PSU boards were cheap they were actually more expensive than the main AV boards lol, Thanks.
 

JayCee

Distinguished Member
Vestel, not “Vesta” and they're Turkish not Japanese.
Vestel are one of the biggest TV manufacturers in the world and most of the TV's sold by Argos and unfamiliar brands sold by supermarkets are made by them.
Good luck.
 

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