DPS-200PB-138C - damaged solder pad

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  • seanc
    Badcaps Legend
    • Nov 2008
    • 1319
    #1

    DPS-200PB-138C - damaged solder pad

    Hi all,

    I have a Delta DPS-200PB-138C.
    Decided to give it a re-cap.

    I've lost a solder pad, I need to know where I connect a capacitor to.
    The capacitor in question is a 47uf 50v (Panasonic FC), with a 100uf 25v (Panasonic FM) capacitor to its right and a 1uf 50V (Nichion) behind it.

    Pictures of the top, bottom, layout of capacitors and damage are attached.

    If someone can give me a hand, it's appreciated. I've not learned how to trace circuits yet. It looks like I could connect it to the leg which is above, to the left - C16 on the top side.
    Attached Files
    Last edited by seanc; 03-19-2011, 12:16 PM.
    Tags: None
    • TheLaw
      Badcaps Veteran
      • Jan 2011
      • 477
      #2
      Re: DPS-200PB-138C - damaged solder pad

      Hi,

      I'm having a hard time determining exactly where the traces are going. You have good pictures. If you could zoom in a little more, it would be a lot more helpful. If not, you'll just have to tell us.


      To help, I put in some reference colors on your picture (located in the attachments)
      Look at the exposed beige colored board that was left when you lifted the solder pad...Don't look at my picture to actually determine it. Use the actual board for that.

      Does the beige make contact with the red or blue solder joint. You can probably tell that the solder pad is surrounded by green soldermask. However, by looking at your picture, it seems that the exposed board makes contact with the red solder joint, and possibly the blue solder joint.

      If the beige/tan touches either one of those solder joints, then effectively, the Panasonic FC capacitor is also connected to that solder joint. If that is the case, then you can simply solder the leg of the Panasonic FC to the other solder joint, and you have effectively fixed it.

      This is pretty hard to explain...actually. But the fix itself is very easy. Don't panic. I've done this with a crappy amplifier board, where I pulled 10+ pads and fixed them with no problems...until I had a grounding problem and screwed something over... Tell me if you have questions. I'll try to reword if need be.
      Attached Files

        Comment

        • seanc
          Badcaps Legend
          • Nov 2008
          • 1319
          #3
          Re: DPS-200PB-138C - damaged solder pad

          It looks to me like it does make contact with the red joint, the blue one is very close too.
          I had it joined to the blue joint but wasn't sure so I un-did it, took pictures and came here to ask for help

          I'll try and take another picture zoomed in tomorrow.

            Comment

            • yyonline
              Badcaps Veteran
              • Jul 2009
              • 692
              • USA
              #4
              Re: DPS-200PB-138C - damaged solder pad

              It looks like the blue and red joints are both connected to the same copper plane. Measure between the blue and red joints with an ohmmeter. If you get 0 ohms resistance, it doesn't matter which one you solder the leg to.

                Comment

                • Wizard
                  Badcaps Legend
                  • Mar 2008
                  • 2296
                  #5
                  Re: DPS-200PB-138C - damaged solder pad

                  THis is a solder pad island. Jumper wire goes over to the right.

                  Check the solder pad that is for jumper wire is ground as this cap that was soldered to the other track on capacitor's negative side.

                  Cheers, Wizard

                    Comment

                    • seanc
                      Badcaps Legend
                      • Nov 2008
                      • 1319
                      #6
                      Re: DPS-200PB-138C - damaged solder pad

                      Cheers guys, it's up and running

                        Comment

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