Acoustic Solutions 37" LCD TV - {[LCD37761F1080P]}

[nemesis86]

I'm New, So first off, Hi guys and Girls!

I picked up the above tv (LCD37761F1080P) yesterday and its not working...
I did a bit of digging through your forum (Awesome by the way!) for some info and it looks like my ground work was well placed...

the situation is this - it turns on, I get the blue standby light but nothing more, the light will dim/flash when the remote is used or the side control buttons but it will not power on completely. Having looked through the forums there are a couple of Acoustic solutions with the same issue is there (It appears its the power supply, which is what i ASSUMED and where i started).

My Expertise is Xbox' and PS3's, im pretty handy with a soldering iron and a multimeter/ohmmeter but im stumped as to what to do... do i replace the PSU or repair it, if its a repair job where do i start?

Thanks in advance.

NeMeSiS86

[Turnip]

Hi Nemesis,

No files here but have that 'Vestel' feeling. Site has heaps on most 17PWxxx supplies. Which is yours  ?

All the best - Chris.

[nemesis86]

Thanks for the quick response Chris,
the Vestel feeling is about bang on, The number listed rings a bell from what i saw printed on the PSU Board.

 I am at work at the moment but i will update with the board numbers/psu numbers when i get home. if there are any Capacitors that have failed can i replace with normal off the shelf items from maplin or would i be better ordering from a specific place? (I know they are rated and carry different ohmage's/voltages etc. i'm just unsure as to where the best place to order from is lol)

[Turnip]

Hi,

Just give us that  17PW - we Quuqs will suggest the rest - possibly argue for months - Chris.

[nemesis86]

Right, in through the door and upto my eyeballs already!

The Power Supply module is 17PW20.1 - thats the one you need i think... the capacitors are all uniform and dont look bulged at all 

As I said, I've done circuit work on xbox's and PS3's etc. but never a tv

Thanks again for your quick responses!

[chrissie jones]

send me a photo of power supply,just  mite av one.

[Turnip]

Hi Nem,

Have a little info - attached - Chris

Would first check those 2 x 15nf's (Top left under the heat sink - they usually bulge a bit and go open circuit)

[nemesis86]

Thanks for all the info so far guys!

i haven't had anytime to do anything tonight but i will be opening the set tomorrow to get a picture of the supply unit and take a look at the suggested area.

Cheers!

Pete
 

[Turnip]

Hi Pete,

Have a piccy - caps outlined (rather small though )- Chris.

[nemesis86]

Cheers Chris, thats wicked! Thats the same as mine i think!

I've attached a photo of the unit from inside the TV for every-one's viewing pleasure 
I'm on PS3 Duty at the minute  so i'll be about.

Thanks again!

[chrissie jones]

is it me or the bad photo.looks like 2 or 3 bulged caps, to the right of power supply.

[nemesis86]

They all looked ok to me, I Will try and take a better picture, but you might be right so i'll check them again 

[sparky]

hi
your right the caps look a bit bulged we spotted
dave

[nemesis86]

Hi guys!

Would some one mine high-lighting the caps i need to check? I know its a bit cheeky but i think i need some help as this is out of my normal area of expertise 

I appreciate everyone's help.

Thank You! 

[Turnip]

Hi Nem,

Generally with this P/S it's initially mains fuse failure and PFC troubles. You don't have this prob, so move on to those two 15nf caps and any round aluminium thingies with a bulgy top.

Quuq folks noticed - on a rather poor piccy - that you had at least three in that category - go solder - Chris

PS - a decent piccy, perhaps.