Back light problem

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  • vinceroger69
    Badcaps Legend
    • Mar 2012
    • 6714
    • uk

    #21
    Re: Back light problem

    [ATTACH]76776[/ATTACH]


    !!! dont down load wrong schme !!!
    Last edited by vinceroger69; 12-19-2013, 05:39 PM.

    Comment

    • snipersquad100
      Badcaps Veteran
      • Nov 2013
      • 297
      • uk

      #22
      Re: Back light problem

      Thank you vince

      Comment

      • snipersquad100
        Badcaps Veteran
        • Nov 2013
        • 297
        • uk

        #23
        Re: Back light problem

        That's the same one lol 10-2

        Comment

        • vinceroger69
          Badcaps Legend
          • Mar 2012
          • 6714
          • uk

          #24
          Re: Back light problem

          this is from another thread
          I've seen a few small screen sets with duff backlights. I'm pretty sure it's dry connections . I've just changed c230/231 5pf 6kv caps it appears to be fine. I wish I'd examined them under a magnifying glass for dry joints before I removed the old ones as I can't see anything wrong with them. Unless they are breaking down under load might be worth a check/replace just in case.

          it looked correct lol
          Last edited by vinceroger69; 12-19-2013, 05:38 PM.

          Comment

          • snipersquad100
            Badcaps Veteran
            • Nov 2013
            • 297
            • uk

            #25
            Re: Back light problem

            Funny you should say that cos ive noticed those two caps have been changed
            b4 by someone, the soldering is not the best. I will reflow them now see if it fixes it or see if maplin got any tomorrow.

            Comment

            • snipersquad100
              Badcaps Veteran
              • Nov 2013
              • 297
              • uk

              #26
              Re: Back light problem

              you didn't pay for that schematic did you?

              Comment

              • vinceroger69
                Badcaps Legend
                • Mar 2012
                • 6714
                • uk

                #27
                Re: Back light problem

                no there free two downloads a day a verygood site imo.
                tom66 site has good schematics as well all free or can donate to his site.
                Last edited by vinceroger69; 12-19-2013, 06:09 PM.

                Comment

                • snipersquad100
                  Badcaps Veteran
                  • Nov 2013
                  • 297
                  • uk

                  #28
                  Re: Back light problem

                  Whats toms site?
                  I reflowed those caps but still the same. I get new ones tomorrow or order some.
                  im off to bed now.
                  Thank you.

                  Comment

                  • vinceroger69
                    Badcaps Legend
                    • Mar 2012
                    • 6714
                    • uk

                    #29
                    Re: Back light problem

                    http://www.toms-service-manuals.com/
                    tom66 member whos helped you on page one
                    Last edited by vinceroger69; 12-19-2013, 06:09 PM.

                    Comment

                    • snipersquad100
                      Badcaps Veteran
                      • Nov 2013
                      • 297
                      • uk

                      #30
                      Re: Back light problem

                      Cant get those two caps in Maplins, it must be such a high technical component for them to stock lol
                      I'll have to order them.

                      Comment

                      • Manddave
                        Senior Member
                        • Oct 2013
                        • 58
                        • Uk

                        #31
                        Re: Back light problem

                        Hi just thought I would let you know that I repaired one of these recently.
                        It had the backlight problem. I replaced the two 3kv caps shown here
                        Hope this helps
                        Attached Files

                        Comment

                        • newtothis
                          Badcaps Legend
                          • Mar 2013
                          • 1556
                          • england

                          #32
                          Re: Back light problem

                          Originally posted by snipersquad100
                          Cant get those two caps in Maplins, it must be such a high technical component for them to stock lol
                          I'll have to order them.


                          Maplins.... no No NO NO NO! LOL

                          Maplins caps are no good. They are general purpose. You need good low ESR caps

                          Comment

                          • snipersquad100
                            Badcaps Veteran
                            • Nov 2013
                            • 297
                            • uk

                            #33
                            Re: Back light problem

                            yes maplins is s**t but cant think of anywhere else in the uk to buy electronic components other than online.
                            Thanks Manndave

                            Comment

                            • tom66
                              EVs Rule
                              • Apr 2011
                              • 32560
                              • UK

                              #34
                              Re: Back light problem

                              cpc.farnell.com have free delivery from £0.01 and stock Panasonic capacitors.
                              Maplin capacitors are often worse than originals.
                              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

                              • snipersquad100
                                Badcaps Veteran
                                • Nov 2013
                                • 297
                                • uk

                                #35
                                Re: Back light problem

                                Can I use 80pf cap instead of the 5pf.
                                Tom that cap you asked me to measure was unpopulated.

                                Comment

                                • selldoor
                                  Slow Learner
                                  • Dec 2010
                                  • 7870

                                  #36
                                  Re: Back light problem

                                  When cpc dont have the offer there is also rs components in pontypridd.
                                  and various other places round the uk. Also I mention because I think it has been there forever and I like the name Cricklewood electronics. In Cricklewood
                                  but post is reasonable IF they have what you need - not great stock or maybe just hard to find.
                                  Please upload pictures using attachment function when ask for help on the repair
                                  http://www.badcaps.net/forum/showthread.php?t=39740

                                  Comment

                                  • vinceroger69
                                    Badcaps Legend
                                    • Mar 2012
                                    • 6714
                                    • uk

                                    #37
                                    Re: Back light problem

                                    Originally posted by snipersquad100
                                    Can I use 80pf cap instead of the 5pf.
                                    Tom that cap you asked me to measure was unpopulated.
                                    i would keep it at 5pf if possible.

                                    Comment

                                    • snipersquad100
                                      Badcaps Veteran
                                      • Nov 2013
                                      • 297
                                      • uk

                                      #38
                                      Re: Back light problem

                                      ok joined cpc and ordered the 5pf 3kv caps

                                      Comment

                                      • vinceroger69
                                        Badcaps Legend
                                        • Mar 2012
                                        • 6714
                                        • uk

                                        #39
                                        Re: Back light problem

                                        cpc a very good site imo good prices takes about 2 days to get to you. i thought they was 5pf 6kv have you checked what your old caps say?
                                        Last edited by vinceroger69; 12-20-2013, 03:25 PM.

                                        Comment

                                        • snipersquad100
                                          Badcaps Veteran
                                          • Nov 2013
                                          • 297
                                          • uk

                                          #40
                                          Re: Back light problem

                                          o shit I ordered 3k, the voltage don't go over 3k does it?

                                          Comment

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