Atec AV420D No Standby

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  • anotherdude
    Badcaps Veteran
    • Feb 2013
    • 488
    • uk

    #21
    Re: Atec AV420D No Standby

    so it's more than likely caps rather than fets?

    Comment

    • tom66
      EVs Rule
      • Apr 2011
      • 32560
      • UK

      #22
      Re: Atec AV420D No Standby

      A FET would not fail intermittently.
      You can still do a check for cold solder joints.
      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

      • anotherdude
        Badcaps Veteran
        • Feb 2013
        • 488
        • uk

        #23
        Re: Atec AV420D No Standby

        i've got a fair few cable boxes and old boards laying round, might see if i can match the caps and replace to test at least then order some pannys at a later date

        tom once again you've been more than helpful, top guy!

        Comment

        • tom66
          EVs Rule
          • Apr 2011
          • 32560
          • UK

          #24
          Re: Atec AV420D No Standby

          I really wouldn't advise that. Old capacitors can "form" to a voltage, which means they can fail to work correctly in a new circuit, even if they worked in the old one. Some capacitors can also dry out if they are left for a long time which may mean they fail too. Just wait a few days for those caps -- it shouldn't cost more than a few pounds and surely all the time soldering/resoldering caps is not worth it.
          Last edited by tom66; 12-22-2013, 12:27 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

          • anotherdude
            Badcaps Veteran
            • Feb 2013
            • 488
            • uk

            #25
            Re: Atec AV420D No Standby

            Originally posted by tom66
            I really wouldn't advise that. Old capacitors can "form" to a voltage, which means they can fail to work correctly in a new circuit, even if they worked in the old one. Just wait a few days for those caps -- it shouldn't cost more than a few pounds and surely all the time soldering/resoldering caps is not worth it.
            i'll wait then, i do have some new caps already but there all big ones so guess there not the right ones

            i'll check for colder solder joints at least anyway

            Comment

            • tom66
              EVs Rule
              • Apr 2011
              • 32560
              • UK

              #26
              Re: Atec AV420D No Standby

              You don't have to replace the 450V cap though.
              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

              • anotherdude
                Badcaps Veteran
                • Feb 2013
                • 488
                • uk

                #27
                Re: Atec AV420D No Standby

                Originally posted by tom66
                You don't have to replace the 450V cap though.
                oh right my mistake, think i've narrowed it down to 2 100uf 50v caps

                Comment

                • anotherdude
                  Badcaps Veteran
                  • Feb 2013
                  • 488
                  • uk

                  #28
                  Re: Atec AV420D No Standby

                  Originally posted by tom66
                  You don't have to replace the 450V cap though.
                  tom just a quick one to say thanks again

                  got the new caps today fitted and tv works as it should now

                  have a good christmas and a even better new year all the best

                  Comment

                  • tom66
                    EVs Rule
                    • Apr 2011
                    • 32560
                    • UK

                    #29
                    Re: Atec AV420D No Standby

                    Glad to hear. Have a good Xmas.
                    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

                    • matyka
                      Senior Member
                      • Jan 2015
                      • 179
                      • Uk

                      #30
                      Re: Atec AV420D No Standby

                      Hello,I have a similar problem just I have a standby light on all the time ,could you help me to fix the board ,thank you in advance .

                      Comment

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