BN44-00343B vs BN44-00341B

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  • Ltank
    Badcaps Veteran
    • Jun 2013
    • 776
    • USA
    #1

    BN44-00343B vs BN44-00341B

    I have a Bn44-00343B Power Supply but can not find a schematic. I found a schematic for a Bn44-00341B. Both have the numerous JP852 to elemenate Striving Backlight problems. Are they the same? Or have the same protection circuits that fail? When Online shops repair them do they cut Jumper JP852 or actually repair the P.S. by replacing bad parts. Does anyone know what parts are replaced? If I figure it out I will post it. In the morning I will attempt to trace circuits and compare to the 341b schematic. I was hoping someone could lead me to the exact cause vs hrs of testing to learn this particular board.
    Thanks
    Ltank
    Tags: None
    • Ltank
      Badcaps Veteran
      • Jun 2013
      • 776
      • USA
      #2
      Re: BN44-00343B vs BN44-00341B

      After close examination the two power supplies are not the same even though they have the same jumper JP852 that removes the ground from PC1801 Ic a optocoupler that sends signal to PFC ciruits.

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