Repairing Philips SPA5300/10 soundsystem

Discussion in 'Electronics Repair' started by P3trus, Sep 11, 2013.

  1. P3trus

    P3trus

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    Aug 4, 2011
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    I've got a problem with my Philips SPA5300/10 sound system. At random times the sound fades out, starts to sound like an old radio and then vanishes completely.

    Since I don't have guarantee anymore I thought I give it a try, see if I can track down the problem and learn something. What I did so far is

    • check the connectors for loose connections
    • open the subwoofer to visually check the amplifier. Capacitors look fine(but they don't have to be), no loose connections either

    I would guess, there is something wrong with the capacitors but it would be nice I one of the experienced users could give me a hint what could be the Problem.

    Edit:

    As I found out, several users have the same problem. In the official support forum (which is now offline but accessible by google cache here) they state that a specific charge had a resistor issue.

    So the question is which one could it be and whats the issue?
     

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    Last edited: Sep 11, 2013
    P3trus, Sep 11, 2013
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  2. P3trus

    P3trus

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    I inspected the PCB more carefully. I found this diode, that looks broken. It seems to have leaked on the PCB. Could this lead to such behaviour?

    EDIT: I guess I was wrong, it's just the soldering flux below the diode :(
     

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    Last edited: Sep 11, 2013
    P3trus, Sep 11, 2013
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  3. P3trus

    davenn Moderator

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    no its the glue that holds the component onto the so that it will stay in place during the soldering process

    no idea what the resistor patch they are talking about is ??
    you could always try that Philips link that was given and see if you get anywhere :)

    Dave
     
    Last edited: Sep 11, 2013
    davenn, Sep 11, 2013
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  4. P3trus

    P3trus

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    I tried to get some more information from Philips but didn't succed so far.

    I checked the capacitors they are fine. I noticed that the status LED starts flickering and vanishes as well when the sound vanishes. Any suggestions?
     
    P3trus, Sep 12, 2013
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