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

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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!!

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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

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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

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