Question about Panasonic KX-T7730 Corded Phone

1 Answer

My KX-T7730 can't display, no tone.

Hello, my telephone set (panasonic KX-T7730), with serial number 6CBKA015372, recently developed a fault, which I don't even know what to do about it yet. The phone has been in good condition till recently. I got to the office and discover that phone was no longer working. When I plug the cord, there's no display, no tone. Could you please assist me with some information on how to solve my phone problem. Thanks, Ebere.

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  • 7 more comments 
  • ewenikei May 25, 2009

    Dear Cnavarro,

    I never made any swap with any one. Before I left office on a weekend, the phone was ok. I discovered this problem on my resumption the next day.


  • ewenikei May 25, 2009

    My dear,
    I have done all that. I have replaced the cord and the jack, which were confirmed to be ok in another phone.



  • ewenikei May 25, 2009

    I'll go for a new phone then. Thanks for your effort.

  • Carl Navarro
    Carl Navarro May 11, 2010

    So that leaves a bad phone. Try Panasonic repair.

  • Carl Navarro
    Carl Navarro May 11, 2010

    ??? No, I'm saying SWAP the phone now with a known good one. You need to determine if the PHONE is bad, or the JACK is bad.



    You could have a bad handset, base cord, or phone, or the CLEANING person could have unplugged it.



  • Carl Navarro
    Carl Navarro May 11, 2010

    Did you swap the base with a known good one? Cords and all?

  • Jose Vasquez
    Jose Vasquez Feb 14, 2017

    hi carl

  • Jose Vasquez
    Jose Vasquez Feb 14, 2017

    i need your help here in my KX-T7730

  • Jose Vasquez
    Jose Vasquez Feb 14, 2017

    what was the proper color coding for the line cord of KX-T7730
    there was i dial tone but the light dose not lit and no display at all

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  • 16 Answers

KX-T7730 Phone must be connected with a 4wire line cord. you may be tested it with a 2 wire line connector.because other normal phones only needed 2wire line cords.Just connect a new 4w cord to under socket located to main unit & other end connect directly to the tel;system & see is the phone confirmed OK.
& let me know .Good luck.
[email protected]

Posted on May 27, 2009

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Posted on Jan 02, 2017

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