Question Ok to cut a ribbon connector?

Discussion in 'Hi-Fi Stereo Systems & Separates' started by TheVictorianShepherd, Jul 6, 2018.

  1. TheVictorianShepherd

    TheVictorianShepherd
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    Dear all,
    I have a question and hope that you can help?...

    I have a Kenwood M-47 system, but the DP-470 isn't working. If I was to buy a replacement cd player would I be able to sever the ribbon connector that leads from the cd player to the radio and amp. so that the connector would only be connecting the amp to the radio?...

    I.E. Would the amp still power the radio even if the connection no longer runs through to the cd player?

    See attached picture.

    Thanks for your help!
     

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  2. Fred Smith

    Fred Smith
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    Without a service manual who knows? Either try but do not not cut it but disconnect internally it or leave it connected.
     
  3. TheVictorianShepherd

    TheVictorianShepherd
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    Thanks Fred, I'm trying to take the cable off the motherboard in the cd player, but I'm hesitant as I don't want to damage anything. I'll have to see if I can source the service manual.
     
  4. TheVictorianShepherd

    TheVictorianShepherd
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    Nope, just can't find how to remove the ribbon from the motherboard to test without severing the ribbon cable. Any thoughts anyone?...
     
  5. stevelup

    stevelup
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    If you bought a replacement DP-470 from somewhere, then it would already have the cable attached and therefore no need to disconnect yours in the first instance. But I have no idea where you'd find such a thing - you'll be very lucky indeed.

    If you're just replacing it with something else, then I guess just cutting it would be fine. No-one actually knows whether the amp will stay working with the CD section disconnected and the service manual won't help you.

    The safest thing to do would be to just leave the faulty DP-470 in the stack and buy another CD player.
     
  6. TheVictorianShepherd

    TheVictorianShepherd
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    Thanks Steve, I appreciate your feedback mate! I think my options are either to buy a replacement cd player and use the aux outs to connect to the amp. and then cut the ribbon after it has connected the amp to the radio.

    If that doesn't work then buy a replacement cd player and radio and using both aux outs.

    Jings, Kenwood made some great gear, but the connecting ribbon seperates weren't designed to be swappable we're they?

    Still, I appreciate your help, thank you.

    If any other members have any experience in cutting ribbon connectors I think everyone would be interested to hear!
     
  7. stevelup

    stevelup
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    Those things aren't really separates to be honest. They just separated the components to make it look like they are! Generally the parts only work with the system they were originally supplied with. They are not interchangeable in any way. It was a marketing thing at the time.

    I'm reasonably confident that if you just neatly cut the ribbon cable with some scissors after the 'Tuner' connector, then that will do no harm and you can safely remove the CD player.

    What no-one knows with any certainty is if this will cause the rest of the system to fail. I suspect not, but don't blame me if it does! Leave a bit of spare before the cut so you can re-join the cable if the worse happens! Or ideally, de-solder it from the CD player end so that you can put it back if necessary.
     
  8. dannnielll

    dannnielll
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    Into which unit does the mains cable connection go? . The document seems to indicate that the power comes from the CD player to power the rest of the system and the power specification is consistent with that... Go with Steve's first suggestion.
     
  9. TheVictorianShepherd

    TheVictorianShepherd
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    Thank you Steve! I so appreciate your thoughts and advice! I think I'll be giving the ribbon a snip, seperating and insulating each wire individually and will let you know how I get on.

    Bless you.
     
  10. stevelup

    stevelup
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    I wouldn't bother to be honest - there's quite a big gap between the conductors.

    Snip it neatly with some very sharp scissors, make sure there are no straggly ends of wire, and then put a single piece of tape over it.
     
  11. TheVictorianShepherd

    TheVictorianShepherd
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    Thanks Daniel - the power comes from the amp. - the cd player and radio are powered from that via the ribbon cable mate.
     
  12. TheVictorianShepherd

    TheVictorianShepherd
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    Thanks Steve! Appreciate your knowledge and advice!
     
  13. simon194

    simon194
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    Using the ribbon connectors to carry audio was a feature of cheaper M series kit. I had the M-97 which used standard phono leads to connect the individual units to the amp and just used the ribbon connectors for system control and power.
     
  14. TheVictorianShepherd

    TheVictorianShepherd
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    Dear All!
    I just wanted to thank you all for your thoughts and advice! Tonight I FINALLY managed to free the ribbon connector from the idc input on the cd players motherboard without having to cut the ribbon itself.

    THANKFULLY, even without the cd player now "in the loop" the amplifier still passed power and signals to the radio, which has meant I don't have to buy a replacement radio seperate too!

    So all I have to do now is heat shrink the wires (see attachment) to insulate them and find a replacement Kenwood cd player to replace the broken cd player and just use their aux inputs.

    Thank you all so much for your advice guys! Bless yees.
     

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  15. Fred Smith

    Fred Smith
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    Does not have to be a Kenwood CD player, all CD players have outputs that should be suitable to feed the Kenwood Aux input.
     
  16. TheVictorianShepherd

    TheVictorianShepherd
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    Thanks Fred, yes I know, but I wanted the stack to look uniform.
     
  17. Fred Smith

    Fred Smith
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    Fair enough.

    But you should see mine:

    Technics turntable, silver
    Chromecast Audio, black
    Beresford audio switch, black
    Pioneer digital timer, dark grey
    Quad FM tuner, lighter grey
    Marantz integrated amplifier, black
    Marantz CD player, black
    Vestel Freeview as DTT radio tuner, black
    Technics cassette desk, dark brown

    All a mixture of sizes. :rotfl:
     

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