Samsung PN64E7000 Won't Power On

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  • TvTime
    New Member
    • Nov 2016
    • 4
    • USA
    #1

    Samsung PN64E7000 Won't Power On

    Actually a PN64E7000FFXZA TW02.

    I have an intermittent issue. I will loose the standby light and the TV will not turn on. Occasionally it will turn on and I've been able to watch for well over 5 hours.

    When I loose the standby light I get two scenarios.

    1) low voltage only on the PSU (5V, 3V, 15V); no high voltage (VA, VS)
    2) no voltage at all, and none on the StdBy or PS-ON pins.

    I found the link below and what it is telling me is the PSU is suspect. I pulled the board and there are no obvious issues with caps or solder joints.

    I'm not crazy about small surface mount stuff. Thru-hole I can deal with. What are some easy things to check?

    https://www.youtube.com/watch?v=JjrwTZC5nVg

    I wish I would have found this link sooner, arguably the best U tube Samsung video I've found.
    Tags: None
    • dick_barton
      Badcaps Legend
      • Aug 2015
      • 6643
      • Wales
      #2
      Re: Samsung PN64E7000 Won't Power On

      If you are losing the standby voltage I would be tempted to remove the power supply and check all the solder joints really carefully and if you can, go over them.
      Any capacitors starting to bulge on top or their plastic covers starting to split. If so they need to be changed.
      Willing to help but I'm no expert.

        Comment

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