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Looking for schematics for a Advent TV HT2751A HDTV?

I've looked every where for a set of these schematics, but have found no luck in locating a set. Can I buy a set from your site or can you point me in the right direction.

Thanks

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Try this
http://www.servicemanuals.net/

Posted on Jan 04, 2008

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Advent Tv on direct tv with snow showing on screen


This is the best solution for your problem as a 40 year experience with wires etc. Go to the source of your cable signal connector . Open it and clean the terminals with emery paper , sand the end of the cable shiny clean from corrosion , get a new barrel connectors with gold terminals if possible lengthen the ends of the cable , insert and tighten good, use thick rg-16 or rg 40 cable with good insulation ends crimped professionally with a crimpier or buy ready made , not from dollar store. Get a gold plated professional splitter if you need one or two , it will cost about 15 or more each . Make the cable runs as short as possible, using the thick good cables. If needed get a signal magnifier. From radio shack or the source etc. Connect them good and tight . Ground the splitters . Problem solved , you will get crystal clear channel 2 to 7 including 3 and 4 . Isolate the TV cable from other cables and power wires. Vitally

Jul 22, 2009 | Recoton Advent Advent HT3251A TV

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Model ht2751a no power,clicks and power light cuts on and off


I replaced caps in power supply.set work fine now.when off light stay blue,when on light is anber.

Jun 18, 2009 | Recoton Advent Advent HT3251A TV

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Ultra 40" LCD40-500--- Need power supply for this LCD TV--- see below for spec's


504bb0c.jpg

Hi!

If anyone would like a Power adapter for their Ultra LCD30-500 and LCD40-500 - please email me Acosta.cal@gmail.com... And I’ll be able to order one…



I too own a Ultra Lcd40-500 HDTV. Bought it from HSN.com back in 2006.

My power adapter burned out 2 weeks ago, and to my dismay PWW, or should I say POS has gone bankrupt.

I looked everywhere online and here in San Jose,CA thinking I would find a replacement or at least someone that could repair the blown capacitor( 630v vpmm), thermitors(IRFD460A) and varistor( SCK206).

After calling every power supply company, distributor, and retailer, had no luck finding a match to this crazy looking 9din pin adapter. Disappointed I gave up on a replacement and took it to various repair shops for repair and was told without schematic would be nearly impossible to replicate the power Output. Finally this one shop was able to replace the burned out components and it seem to work at the store. When I got home with it..no luck..red light would come on…but no light on screen. L

Not wanting to give up or trash my LCD. It was time to dig further…I did some research through my employer; a SemiConductor company here in Santa Clara, CA.

Needless to say this power adapter has driven me crazy….It has been exhausting... But finally just yesterday I got the break needed…I found a manufacturer in Taiwan that has these power supplies for both the Ultra lcd 30" and 40". I was told they only sell to Component or Electronic Suppliers. I’ve asked my employer to see if I would be able to order one on their behalf using their account.

Happy ending! My power supply is on it’s way. I was told it could take up to 4weeks for delivery. But I’m just glad to have a replacement.

Mar 16, 2009 | Televison & Video

1 Answer

The picture on my Advent TV HT2751A is curving inwards.


Hi, although I have all sony tvs in my house, every room brand new, when there broke there like a opened bottle of wine ,FLAT, no good!! A 27 is so cheap its worth buying a new one. UNLESS you live where you have friends that fix them on the side. I do and if you ever get to seethe inside of the tv you will wonder what your paying for there is only a few parts in them now and my friend chks them with a machine in 10 minutes if it is worth fixing he has the parts on the shelf and it must be under 100 or its going in the barrel. I have had 1 fixed 10 minutes still good other 1 he threw it out. That's all I can do for you from here, sorry, good luck, Frankie

May 07, 2017 | Televison & Video

1 Answer

Advent ht2751a


I don't have schematics of this particular tv but I would try to help you to diagnose and rectify this problem.
I think that your tv has problem of pin cushion, incorrect picture size at sides, this is cause of few defective parts in Pin Amp area.
I need few clear and focused pictures of both sides of TV main board to see what part is damaged.
Thank you.

Oct 24, 2008 | Televison & Video

3 Answers

Ultra 40" LCD40-500--- Need power supply for this LCD TV--- see below for spec's


b199d53.jpg


Hi!

If anyone would like a Power adapter for their Ultra LCD30-500 and LCD40-500 - please email me Acosta.cal@gmail.com... And I’ll be able to order one…


I too own a Ultra Lcd40-500 HDTV. Bought it from HSN.com back in 2006.

My power adapter burned out 2 weeks ago, and to my dismay PWW, or should I say POS has gone bankrupt.

I looked everywhere online and here in San Jose,CA thinking I would find a replacement or at least someone that could repair the blown capacitor( 630v vpmm), thermitors(IRFD460A) and varistor( SCK206).

After calling every power supply company, distributor, and retailer, had no luck finding a match to this crazy looking 9din pin adapter. Disappointed I gave up on a replacement and took it to various repair shops for repair and was told without schematic would be nearly impossible to replicate the power Output. Finally this one shop was able to replace the burned out components and it seem to work at the store. When I got home with it..no luck..red light would come on…but no light on screen. L

Not wanting to give up or trash my LCD. It was time to dig further…I did some research through my employer; a SemiConductor company here in Santa Clara, CA.

Needless to say this power adapter has driven me crazy….It has been exhausting... But finally just yesterday I got the break needed…I found a manufacturer in Taiwan that has these power supplies for both the Ultra lcd 30" and 40". I was told they only sell to Component or Electronic Suppliers. I’ve asked my employer to see if I would be able to order one on their behalf using their account.

Happy ending! My power supply is on it’s way. I was told it could take up to 4weeks for delivery. But I’m just glad to have a replacement.

Oct 18, 2008 | NEC MultiSync LCD4010-BK TFT 40" Flat...

1 Answer

Schematic pointing to a video sync pulse out for the above tv.


I dont know if they will have what you are looking for but try: www.eserviceinfo.com you might find it there. By the way why not use an oscilloscope? Good luck in your search.

Oct 03, 2008 | Insignia 15 in. Flat Panel LCD HDTV

1 Answer

Advent HT2751A display no good until after 1-2 hour warmup - maybe


After 3 years, I finally decided to open up the TV and do some troubleshooting. Found out the problem, It was a blown capacitor Location C554 Capacitor value is 2200uF 16V - costs about a dollar to replace yourself and the TV works brand new.

Aug 16, 2007 | Recoton Advent Advent HT3251A TV

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