Samsung PS58C7000YFXXY - Sound but no picture

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  • tom66
    EVs Rule
    • Apr 2011
    • 32560
    • UK
    #21
    Re: Samsung PS58C7000YFXXY - Sound but no picture

    I have highlighted the probe point here.
    Attached Files

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    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

      • EmDeeZed
        Member
        • Apr 2015
        • 13
        • Australia
        #22
        Re: Samsung PS58C7000YFXXY - Sound but no picture

        OK - I hooked up the CRO as indicated and this is the result...
        50v/div @ I think .5ms/div
        You can see the reading jump to about 15v when the TV is turned on, then a small burst of activity.

        http://youtu.be/WIb9l8gVRuY

          Comment

          • tom66
            EVs Rule
            • Apr 2011
            • 32560
            • UK
            #23
            Re: Samsung PS58C7000YFXXY - Sound but no picture

            Both waveforms look good. It's hard to see if there's anything obviously wrong because the pulse is so brief, so it could be a case of the control board shutting the set down.

            Is there any way you could borrow a digital scope so you can capture the waveform and look at it more closely?
            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

              • EmDeeZed
                Member
                • Apr 2015
                • 13
                • Australia
                #24
                Re: Samsung PS58C7000YFXXY - Sound but no picture

                I'll see what I can do about a digital scope although it might take a week or so. Stay tuned

                  Comment

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