CXA3740M Datasheet

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  • Sevenqi
    Badcaps Veteran
    • Jul 2011
    • 292
    #1

    CXA3740M Datasheet

    Looking for this IC's Datasheet, it's the power supply IC for aps-311 board in SONY KDL-55BX520, TV has no red led on but did have 3.3 standby, no ac-off-det voltage. Like to determin if this IC is good or not first before check the main board.

    Thanks
    Tags: None
    • CapLeaker
      Leaking Member
      • Dec 2014
      • 8327
      • Canada
      #2
      Re: CXA3740M Datasheet

      If there is standby voltage, then unplug all the other boards and force the PS on in order to test it. Standby voltage goes to the main board, which is giving you the led. When you press power button, it will send a signal back to the power supply, turning on all voltage rails.

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