Question about Astar LTV-2701 27 in. HD-Ready LCD Television

3 Answers

AstarLTV-30-MA power supplie board

Repairman said it's the power supply, but can't find any. He said if we had the schematic's for it he may be able to use power board from another brand. Same problems turns on for split second astar pops up then black screen.sometimes sound then nothing. And of course the company is out of bussiness. HELP!!

Posted by on

3 Answers

  • Level 1:

    An expert who has achieved level 1.

    Problem Solver:

    An expert who has answered 5 questions.

  • Contributor
  • 3 Answers

If the problem is the power supply sometimes is not an easy fix. the easy ones are swollen electrolytic capacitors which are easy to spot because the top of it tends to swell up. However when there is a short circuit, this is another story. A blown fuse is an indication of a short. Fuses blow for two reasons, one overload or a dead short. In this supply there are two stages. In the first stage there is a bridge rectifier which is always connected to the AC line thru a fuse. Check this bridge with an ohm meter in Rx1 and make sure is not shorted.

Posted on May 25, 2014

Just fixed my own by replacing the capacitors in the power supply board, cost for parts $51.00. info on this site was great!

Posted on Mar 12, 2008

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points


    An expert that got 10 achievements.


    An expert that got 5 achievements.


    An expert whose answer got voted for 500 times.

  • Master
  • 2,267 Answers

If the problem is with the power supply, that is an easy fix; even without the schematic diagram.
Is normally some leaky capacitors that failed on the majority of power supplies on these TVs.

Posted on Feb 22, 2008

1 Suggested Answer

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer

I would like to know if you can supply the schematic diagran for LG32LH20R-MA power supply board E247691

I've the said diagram, but it can't be send to you by this window. It is in PDF.

Apr 30, 2013 | LG Televison & Video

2 Answers

Proview MA-32EF1AC TV won't turn on. I have a TV that the power LED goes form red to blue when it is turned on and then right back to red again. When I expose the circuit board in the back the power supply...

although resonace does not always indicate power problems that would be the first choice.. i would say 80 percent chance that the power board is bad.. but theres always a chance that one of the other boards or even the panel could be loading the psu down

Jan 04, 2008 | Proview HX303 30 in. HD-Ready LCD...

1 Answer

My LC-46LE620ut blew out R9137 on power supply board. Replaced resistor and then another component shorted out.Will replacing power supply board fix this problem? Where can I get a replacement power...

Without seeing the board or the schematics, I can't say that replacing the power supply will fix your problem. There could be a short external to the power supply that is causing your problem. You can buy replacement parts from or
There are a few decent parts sellers on Ebay who actually offer warranties

Apr 26, 2012 | Sharp Televison & Video

1 Answer

Model # TH-42PX80U tv was on when a storm hit 'lightning' , on lite only blinks... is it a fuse ? or mother board?

You are better off replacing the power supply board. Usually the mother board will output a power ok signal to turn on the TV only when the power supply is working correctly (all voltages are within specs), similar to a computer, having said so, if you have the schematics you can verify those voltages being output from the power supply upon depressing the power button. The +5v stand by voltage is most likely ok, since the mother board is at least providing you with the blinking light. It is the +12V and +24V which are not being output, along with any other auxiliary voltages. I would suggest either having a replacement board (power PCB) installed or otherwise feeding the needed voltages by substituting those missing ones with a variable DC power supply, just to verify it. Follow above only if familiar with electronics and electricity. safety first!. guy audio/video/computer technician for over 30 years

May 26, 2011 | Panasonic TH-42PX80U Plasma TV

1 Answer

Unit is dead I need power supply schematics

U will not find schematic,the tv corporation don't release them.Just take the tv aparts.Tries Websites like, to buy a refurbish power supply board for the replacement.Just compare the power supply board in ur tv and the website that selling the power supply board.The picture look alike,ask the seller questions.Just buy and replaced it.U know how to solders?Just searches around the power supply board for those bulges and puff up capacitors.Replaced these capacitors will get ur power back.Most just reqiure replaced these capacitors to get the power back.

Apr 21, 2010 | RCA L32WD26D HDTV/DVD Combo

1 Answer

Westinghouse 32W1 Power Supply Board or Main Board Problem?

your problem is most likely the inverter board you might be able to find one at or Tops electronics in Haverhill ma

Dec 02, 2009 | Westinghouse LTV-32w1 32 in. HD-Ready LCD...

1 Answer

LG TV (LCD) power supply schematics

Service manual from SAMs does not include a schematic of the power supply board

Aug 03, 2009 | LG Televison & Video

2 Answers

Power supply bad on Sharp Aquos LC - bad board - schematic to ID?

Buy the green light going on means Standby is ok. Next, would be to locate the plug coming from the main board to the power supply and find the post that says PO which means power on. With your meter on that post, press the power button as see if the reading goes High, if it does then the main board is able to turn on the power supply. Next, find the plug on the power supply that goes to the inverter( the long board on the side) remove it and see if you have 24 volts coming out of the power supply when you press the power. If you do, then the inverter board is bad, if you don't have 24 v, then the power supply is bad. There are NO diagrams available for these set other than a flow chart if you can find one. A regular svc tech does'nt need a manual for these anyway.

Let me know how you do Kathy ?

May 17, 2009 | Sharp Televison & Video

1 Answer

Have a 30" SHARP Aquos LC30HV2U that has a bad power supply. Nothing happens when I turn on the LCD - though it is getting power confirmed by green light going on but nothing on LCD. Visual inspection

You did try the CLEAR button on front of the box?
One possible idea is the cables going the box to the TV. ( might be bad )

If your sure about the problem, you can get your Service Manual here:

This with have all the schematic, diagrams, part number, and test points you need.

May 17, 2009 | Sharp Televison & Video

1 Answer

Samsung LN-S4051d power supply board

The replacement of the power supply is quite easy. You will have to remove the base if applicable and the back cover, once you remove it; you should see the power supply.
Click here to see how the power supply looks like and availability or Click here to find a cheaper one.

I can also repair your power supply. If you need further assistance you can write to

Jan 05, 2009 | Samsung LN-S4051D 40 in. LCD Television

Not finding what you are looking for?
Astar LTV-2701 27 in. HD-Ready LCD Television Logo

139 people viewed this question

Ask a Question

Usually answered in minutes!

Top Astar Televison & Video Experts

The Knight
The Knight

Level 3 Expert

69878 Answers

Theo Nikolaidis
Theo Nikolaidis

Level 2 Expert

78 Answers

Raj Patel

Level 3 Expert

851 Answers

Are you an Astar Televison and Video Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides