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REPAIR HELP: Philips Speaker System 2.1 SPA2360/17

Discussion in 'Audio' started by anneelise, Aug 30, 2018.

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  1. anneelise

    anneelise

    1
    0
    Aug 30, 2018
    Can someone help me identify these parts? I'm trying to repair an old set of speakers that caught on fire recently (lmao)
     

    Attached Files:

  2. kellys_eye

    kellys_eye

    4,277
    1,146
    Jun 25, 2010
    They are 'pentawatt' package devices and integrated audio amplifiers potentially TDA2003 or TDA2030 etc. As they are all identical (U1,2,3,4 etc) can you see any identification marks on any of them?
     
  3. dave9

    dave9

    864
    211
    Mar 5, 2017
    Map the pinout of that IC, the function of each pin based on the circuit leading to it, and measure the supply voltage getting to it. This will tell you whether you can just drop in something like TDA2030.
     
  4. davenn

    davenn Moderator

    13,497
    1,830
    Sep 5, 2009
    upload_2018-9-1_10-25-25.png


    And they are just ferrite beads epoxied onto a straight bit of wire to form a choke

    readily available
     
  5. nepow

    nepow

    99
    1
    Jul 18, 2011
    You could try locating a schematic on line Google he model number.
     
  6. dave9

    dave9

    864
    211
    Mar 5, 2017
    If you get really bored you might see if you can hold a soldering iron on the leg of the ferrite bead, wait for it to degrade the epoxy, then use a couple pair of pliers to pull the lead out so you can stuff a new wire through. Worst comes to worst, you have wasted two minutes and will have to spend more time hunting one down.

    This is another example of why I cannibalized a bunch of gear years ago, little things like a ferrite bead (that don't age/decay unless there is a fault) where it's more time to hunt down and more in postage than it's worth.
     
  7. duke37

    duke37

    5,297
    739
    Jan 9, 2011
    Did you cut the lead to L1? or did it fuse. If the latter, then there is something very wrong elsewhere. You could try replacing it with a plain wire.
     
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