Westinghouse LTV-32w1 32 in. HD-Ready LCD Television Logo

Question about Westinghouse LTV-32w1 32 in. HD-Ready LCD Television

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Repair tip I'm working on a LG RM20LA70. When powered on there is no picture or sound exepted for a sceaching coming from the speakers.As it warms up it will slowly start working. tried heating it and freezing it wit no success. Has any one encounted thi problem.(lcd tv)

Posted by Anonymous on

  • Anonymous Sep 11, 2007

    Thank you I will check the voltages but the menu is fine except for the screaching sound coming from the speakers.

  • Anonymous Jan 09, 2008

    This model is a lcd panel

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Anonymous

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I kinda agree to start checking voltages on the power supply, but the TV i have it is hard to find parts let alone the schematics the make is westinghouse the model is LTV-27W2.did i mention it is only 2 years old

Posted on Mar 15, 2008

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When u start ur tv when its cold, u must test all ur voltage going to the crt board ,, u should see if there is a voltage drop,on G1 , G2 OR HEAT OR 12 VOLT LINE..IF U GOT A VOLTAGE DROP ,FOLLOW BACK THE PROBLE,SEE WHAT CIRCUIT PROVIDE THAT VOLTAGE TO IT,,,GOOD LUCK BUDDY,BYE

Posted on Jan 08, 2008

  • Anonymous Jan 09, 2008

    ok,well i didn"y knew its a lcd panel... anyways if its alcd tv ,the troubleshoting wil be different that the first idea i give ok, sorry for that error.. -/ for lcd tv dead-- did u check output source from ur power supply to ur mb,5v,12,24v, one of those 3 voltage,?,,if voltage ok,check ur see if ur 24v going to ur inverter board ok,,, this sound like a defective cap ,,,

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I encounter that symtoms! maybe you have defective starting capacitor! 150uf 180v or 200v near at the flyback!.

Posted on Sep 12, 2007

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There is a bad cap in the ps ck ESR..john

Posted on Sep 12, 2007

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I have not encountered this problem but I can tell you what is happening. The switching power supply transformer might be arching. I would get a scematic for this set and begin to look at the voltages on the Power supply for proper functionality.

Posted on Sep 11, 2007

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