Samsung pn51d440a5d: No Picture - Bad Logic Board?

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  • tom66
    EVs Rule
    • Apr 2011
    • 32560
    • UK
    #41
    Re: Samsung pn51d440a5d: No Picture - Bad Logic Board?

    No obvious ER check points on there... hard to check without a scope...
    A pic of the X-main may allow checking of the ER tank caps there, but that doesn't rule out the possibility of a missing/stunted priming ramp causing the fault.
    Please do not PM me with questions! Questions via PM will not be answered. Post on the forums instead!
    For service manual, schematic, boardview (board view), datasheet, cad - use our search.

      Comment

      • JDC
        Badcaps Veteran
        • May 2015
        • 273
        • USA
        #42
        Re: Samsung pn51d440a5d: No Picture - Bad Logic Board?

        Originally posted by tom66
        No obvious ER check points on there... hard to check without a scope...
        A pic of the X-main may allow checking of the ER tank caps there, but that doesn't rule out the possibility of a missing/stunted priming ramp causing the fault.
        Yikes. I've got a call in for a repair shop, waiting for them to get back to me.

          Comment

          • JDC
            Badcaps Veteran
            • May 2015
            • 273
            • USA
            #43
            Re: Samsung pn51d440a5d: No Picture - Bad Logic Board?

            UPDATE: Replacing the Y-Main solved the issue. Thank you all for your help!

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