Olevia LT37HVS "on" but black screen and no response

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  • Sparky
    High voltage
    • Jan 2007
    • 234
    • USA
    #1

    Olevia LT37HVS "on" but black screen and no response

    I have this 37" Olevia TV at work I'm trying to fix. Belongs to a client. It was originally making some funny buzzing noises then just quit working one day. So I brought it to the shop and popped open the cover. Sure enough, bad caps in the PSU. I recapped the power supply with Panasonics (mostly FM and a few FC aside from some of the really tiny caps).

    Now the TV no longer makes weird noises but when you plug it in the Olevia logo glows blue for a second, then turns off and the backlights kick on. It doesn't respond to the power button or any button for that matter.

    Does anyone have the schematic or at least what voltages should be on what wires? Some where obvious as I got 18V and 5V on several wires, but then others I had nothing or only 4V. That strikes me as possibly an issue but then they could be control wires also for all I know and not power source wires.

    The power supply is an Arestech AEP001-24 Rev 1.
    Tags: None
    • Seeking Buddha
      New Member
      • Jul 2015
      • 2
      • USA
      #2
      Re: Olevia LT37HVS "on" but black screen and no response

      I have an Olevia lt37hvas. The set comes on blue screen when I start it up then pops to black and says no signal. When I use the manual controls on the bottom, the menu lights up fine. It happened when I was changing sources, I accidentally turned the TV on and off and I think I gave it some kind of surge, because that's when it happened. It went pink for a little bit, then it wouldn't do that anymore and just does the blue for a few seconds then switched to black, No Input Signal.

      Anyone have any suggestions?

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