Need help to determine cap type

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  • Hoss
    Member
    • Mar 2014
    • 12
    • USA
    #1

    Need help to determine cap type

    Hi all

    I am working right now on a Klipsch ProMedia V2-400 amp that I got on Craigslist. As some might know this amp has for each channel an individual amp pcb.

    Here is what happened:

    I replaced the usual suspects like underrated and non-functional resistors on the DC to DC and Digital Converter. As soon as I turned it on, cap C22 on one of the amp-boards went into smoke.

    I assume that this particular board had already a prior issue which killed an underrated resistor (which acted then as fuse) on the DC-DC converter.

    Anyways, I disconnected this particular amp-board and amp plays now fine on the remaing 4 channels.

    My question:

    Can somebody point me please in the right direction what kind of cap this is and what would be an adequate replacement.
    Attached Files
    Last edited by Hoss; 08-07-2014, 07:01 PM.
    Tags: None
    • budm
      Badcaps Legend
      • Feb 2010
      • 40746
      • USA
      #2
      Re: Need help to determine cap type

      They are bypass Ceramic cap. Ceramic cap will usually fails in shorted out mode.
      http://www.mouser.com/ProductDetail/...T1AUQKZeYzY%3d

      http://www.mouser.com/ProductDetail/...3dcUyZcfc7w%3d
      Never stop learning
      Basic LCD TV and Monitor troubleshooting guides.
      http://www.badcaps.net/forum/showthr...956#post305956

      Voltage Regulator (LDO) testing:
      http://www.badcaps.net/forum/showthr...999#post300999

      Inverter testing using old CFL:
      http://www.badcaps.net/forum/showthr...er+testing+cfl

      Tear down pictures : Hit the ">" Show Albums and stories" on the left side
      http://s807.photobucket.com/user/budm/library/

      TV Factory reset codes listing:
      http://www.badcaps.net/forum/showthread.php?t=24809

        Comment

        • Hoss
          Member
          • Mar 2014
          • 12
          • USA
          #3
          Re: Need help to determine cap type

          Thanks a bunch budm, I appreciate your help

            Comment

            • mariushm
              Badcaps Legend
              • May 2011
              • 3799
              #4
              Re: Need help to determine cap type

              If you didn't order them already, pick some that are rated X5R or X7R or G0G/NPO.

              The ones linked are Z5U which aren't as good. For a decoupling capacitor it doesn't make much difference, but as long as you're buying why not buy some better stuff.

              Here's some suggestions:

              http://www2.mouser.com/ProductDetail...1h2iE%252bY%3d

              http://www2.mouser.com/ProductDetail...52bpP7i1YUY%3d

              http://www2.mouser.com/ProductDetail...VHnLudpv150%3d

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