SANYO LCD-32XR12F; standby blinks 5 times and then all dead

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  • inflex
    Badcaps Veteran
    • Aug 2012
    • 545
    • Australia
    #1

    SANYO LCD-32XR12F; standby blinks 5 times and then all dead

    Picked up from a person, was hoping for the simpler leaky-cap failure after they described how it was difficult to get to turn on until it just stopped turning on.

    On powering up, the standby light blinks 5 times, then it's all dark.

    Testing the 12V and 5V lines on the logic board show that the PSU seems to be doing fine.

    The side power/menu/etc buttons generate appropriate voltage levels ( resistor divider ) but no response by pressing any of them.

    Remote control doesn't seem to invoke any responses either.

    Can't find a service/schem manual anywhere, might just end up binning it.
    YouTube Repair Videos - https://www.youtube.com/user/19PLD73
    FlexBV BoardView software - Linux/OSX/Windows - http://pldaniels.com/flexbv
    Tags: None
    • inflex
      Badcaps Veteran
      • Aug 2012
      • 545
      • Australia
      #2
      Re: SANYO LCD-32XR12F; standby blinks 5 times and then all dead

      Managed to find a sufficiently similar schem ( Sanyo 32" ), showing 5V-standby at 5.128V, so that's acceptable.

      Pressing the power-on button pulls the line down to GND but no power on results.

      What I cannot find in any of the service manuals though is the meaning of the 5 blinks on power up.
      YouTube Repair Videos - https://www.youtube.com/user/19PLD73
      FlexBV BoardView software - Linux/OSX/Windows - http://pldaniels.com/flexbv

        Comment

        • inflex
          Badcaps Veteran
          • Aug 2012
          • 545
          • Australia
          #3
          Re: SANYO LCD-32XR12F; standby blinks 5 times and then all dead

          Previous owner states that the unit became progressively less responsive to user inputs [ from remote? ] over time until such that it now doesn't start.

          Pondering if perhaps the main CPU needs reflowing :\
          YouTube Repair Videos - https://www.youtube.com/user/19PLD73
          FlexBV BoardView software - Linux/OSX/Windows - http://pldaniels.com/flexbv

            Comment

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