This Guy was About to Put His Toshiba 37AV500U Into the Dumpster.....

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  • Paul678
    Badcaps Veteran
    • Nov 2011
    • 402

    #21
    Re: This Guy was About to Put His Toshiba 37AV500U Into the Dumpster.....

    F#$@! YEAH!!!!! SWEEEEEET!!!!


    It's working!! The picture is ultra nice! I'm
    in awe of how much they have improved LCD, in terms
    of widening the viewing angle! It's almost as nice as my
    40"! Digital TV is ultra sharp!

    Ok details. I was too cheap to spend $25 on Chip Quick,
    so I just cut the leads, and pulled the chip. I did slightly
    bend a pad, but it went well nevertheless (Chip Quick looks
    awesome, and I saw it for $18 at my local electronics
    place, so I might give it a try next time).

    Installation of the inverter chip and mosfets was easy. The meniscus, surface tension effect of molten solder makes it easy actually, especially with the reasonably large pitch on this chip. I just made sure
    I used plenty of flux paste first.

    Total spent on parts: About $30.

    Thanks to Rayrod and Tom, and everyone else
    for their suggestions.

    I think most people here will agree that repairs like
    this are in some ways more satisfying than jobs that are super easy.

    This website is incredible, and you boys are helping me pay the
    Goddamned RENT!!!!

    LOL!!!!!

    Last edited by Paul678; 03-03-2012, 02:57 PM.

    Comment

    • tom66
      EVs Rule
      • Apr 2011
      • 32560
      • UK

      #22
      Re: This Guy was About to Put His Toshiba 37AV500U Into the Dumpster.....

      Awesome!

      I'll be repairing TVs in university to keep the rent payments up, too. If I have the time while doing a MEng Electronics Engineering . I'm sure I'll be popular with a 50" plasma.

      Out of curiosity, what were the caps on the power supply? Good or bad? Any CrapXon, like newer Toshibas have?
      Last edited by tom66; 03-03-2012, 03:18 PM.
      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

      • Paul678
        Badcaps Veteran
        • Nov 2011
        • 402

        #23
        Re: This Guy was About to Put His Toshiba 37AV500U Into the Dumpster.....

        Originally posted by tom66
        Awesome!

        I'll be repairing TVs in university to keep the rent payments up, too. If I have the time while doing a MEng Electronics Engineering . I'm sure I'll be popular with a 50" plasma.

        Out of curiosity, what were the caps on the power supply? Good or bad? Any CrapXon, like newer Toshibas have?

        Well, I buttoned her up already, but looking through
        the back, I could see some Rubycons, although I'm
        not sure if there is a mix of brands.

        Yeah, if it wasn't for goddamned Walmart, we could be
        self-employed! haha!



        Oh, and I was wondering: how much would this tv
        fetch in your neck of the woods? It's in like-new condition!

        Comment

        • tom66
          EVs Rule
          • Apr 2011
          • 32560
          • UK

          #24
          Re: This Guy was About to Put His Toshiba 37AV500U Into the Dumpster.....

          Originally posted by Paul678
          Oh, and I was wondering: how much would this tv
          fetch in your neck of the woods? It's in like-new condition!
          The Toshiba I have has Rubycons, Chemicons and Nichicons - all high quality caps. On the secondary DC-DC board there are some Jamicons, which aren't as good, but they are in a low stress position after an LC filter so probably okay there too. Jamicon are one of the better cheap brands. Still wouldn't trust them much though.

          Well, it's "only" 720p. I sold a 720p 40" Samsung for £190 and 37" is pretty close. So about $300.
          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

          • Paul678
            Badcaps Veteran
            • Nov 2011
            • 402

            #25
            Re: This Guy was About to Put His Toshiba 37AV500U Into the Dumpster.....

            Originally posted by tom66
            The Toshiba I have has Rubycons, Chemicons and Nichicons - all high quality caps. On the secondary DC-DC board there are some Jamicons, which aren't as good, but they are in a low stress position after an LC filter so probably okay there too. Jamicon are one of the better cheap brands. Still wouldn't trust them much though.

            Well, it's "only" 720p. I sold a 720p 40" Samsung for £190 and 37" is pretty close. So about $300.

            Do you normally replace these not-as-good caps,
            even if they are not currently the problem? As everyone
            knows, caps can be damn pricey!

            Yeah, $300 sounds about right. I posted it on Craig's
            for $350, not really expecting to sell it, but just to make
            myself feel better about not under-bidding myself. I'll
            probably decrease the price in increments of $25 until
            it sells.

            I'm not in a hurry to sell......and the picture is wonderful!

            Wow!

            Comment

            • tom66
              EVs Rule
              • Apr 2011
              • 32560
              • UK

              #26
              Re: This Guy was About to Put His Toshiba 37AV500U Into the Dumpster.....

              Originally posted by Paul678
              Do you normally replace these not-as-good caps,
              even if they are not currently the problem? As everyone
              knows, caps can be damn pricey!
              Not unless they are in a high stress environment, like directly on the output of an SMPS. If they are on the main board or a DC-DC converter I leave them.
              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

              • Paul678
                Badcaps Veteran
                • Nov 2011
                • 402

                #27
                Re: This Guy was About to Put His Toshiba 37AV500U Into the Dumpster.....

                Originally posted by tom66
                Not unless they are in a high stress environment, like directly on the output of an SMPS. If they are on the main board or a DC-DC converter I leave them.
                Sounds like a good idea, thanks again.

                Ok, READY FOR ANOTHER TV!!!

                Comment

                • absolutezero273c
                  New Member
                  • Nov 2012
                  • 1
                  • USA

                  #28
                  Re: This Guy was About to Put His Toshiba 37AV500U Into the Dumpster.....

                  Paul678,
                  I was searching for help diagnosing a bad D4SBS6 and saw you were successful in repairing your tv. If you don't mind me asking:

                  1)How did you test it? Simply by removing it from the board and testing resistance/continuity with your meter? Or did you apply voltage to the part?

                  2) Did you also replace the D4SBS6 with the KBU4J?
                  Last edited by absolutezero273c; 11-12-2012, 10:03 AM.

                  Comment

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