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PeteSilk
Contributor I
March 23, 2014

Blown up Connect Amp

  • March 23, 2014
  • 20 replies
  • 9657 views
I just connected my new Connect Amp to 240 V while the switch was set to 110V (I feel so stupid). I have removed the fuse and ordered a replacement. There is also a yellow disk that is fried which I suspect is a varistor ?. Can anyone confirm this for me and suggest a suitable type as there is nothing written on it. It is yellow and 16mm dia and 3.4 mm thick. It was located in between two large electrolytic caps next to another identical component. Thanks in advance for any ideas
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    20 replies

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    SonomaMike
    Contributor I
    November 13, 2015
    I bought a used Z120 with an unidentified power issue. It was dead.

    The 5A fuse is open. No other components show visible damage. When I shorted out the fuse to see if the amp would power up there was a momentary flash of light near the centre of the power board. I say momentary because I quickly opened up the fuse again.

    It appears to me as if something arced or there is a short somewhere downstream of the fuse. Everything I measure with an ohm meter seems to react ok. The varistors near the large filtering caps are not shorted. Before I try to replicate the action of shorting the fuse again to see what is arcing I thought I'd see if anyone had any ideas as to the fault.

    Also, has anyone created a schematic of the power supply?
    SonomaMike
    Contributor I
    November 13, 2015
    Are there any photos available of the ZP90 power supply board? I have a dead, out of warranty ZP90 I am trying to repair and am looking for a schematic or photos.
    Robsailing
    Lyricist I
    July 24, 2016
    Hi Gents ,
    Unfortunately I have joined the club and had the voltage set incorrectly . I have now replaced fuse twice and replaced both metal oxid varistor TVR14241 (labelled as D16034, it is actually a yellow disc with a black shrink "coat"), that showed signs of being blown , with black "soot: surrounding area between the capacitors ?
    Would appreciate any further thoughts, input , ideas , or even a schematic with some test values .

    I would be very grateful for any input , guidance or assistance .

    Regards

    Rob
    Chrigi
    Lyricist I
    March 7, 2017
    I'm sorry if this is stupid, but where exactly can I find the fuse??? I opened up my connect amp and couldn't really find a replaceable fuse anywhere, any help appreciated, before I dismantle it any further...Thank you
    Stuart_W
    Stuart_W
    World-Class Superstar
    March 7, 2017
    I'm sorry if this is stupid, but where exactly can I find the fuse??? I opened up my connect amp and couldn't really find a replaceable fuse anywhere, any help appreciated, before I dismantle it any further...Thank you

    This may provide you with the guidance you need:-

    http://danonit.blogspot.co.uk/2011/11/sonos-project-off-to-cracking-start.html
    Arc + Sub (Gen 1) + 2 x Play 1/ Stereo Play 3s/ Era 100 Stereo in Kitchen, One Stereo in Bedroom, Play 1 stereo pair in Study, Play 1in Bathroom, Sonos Move 2
      yankoff
      yankoff
      Lyricist I
      July 8, 2017
      Hi
      Same issue with the 110V switch in position and 230V supplied - It was a shocking sound and also smell. Metal oxid smoke told me there is more blown as a simple fuse.
      I have decided to repair. When I opened the sonos zp120 i saw that MOV16002 with deffect. Everybody knows, what is the component?
      I think that is varistor. (small yellow disc).

      thanks Daniel, I recived TVR14241 and fuse 250V 5A. Replace that components, but when i testing, my problem is reapiting - it was a shocking sound and also smell.
      May bee MOV16002 it`s varistor on 250V-275V?
      P.S. SONOS YOU CAN PRINT RED LABLE NEAR 110/230 SWITCH :@:@:@
        yankoff
        yankoff
        Lyricist I
        July 8, 2017
        GBU808 diode posible broken, near varistor MOV16002.

          Sadie
          Contributor I
          December 28, 2018
          I can connect to
          nest remotely. Why not sonos?
          Smilja
          Smilja
          December 28, 2018
          I can connect to
          nest remotely. Why not sonos?
          Because Sonos is a music system rather than home automation?
          »And the world is like an apple whirling silently in space, Like the circles that you find in the windmills of your mind.« (›Windmills Of Your Mind‹ [1967]. Music by Michel Legrand ; English lyrics written by Alan & Marilyn Bergman)
          jgatie
          jgatie
          December 28, 2018
          I can connect to
          nest remotely. Why not sonos?

          Not sure what this has to do with a 4 year old thread about a blown Connect:Amp.
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