1. In celebration of the launch of the new redesigned site, we just gave away a FREE antenna! Click Here to See Who Won!

No key up

Discussion in 'CB and Export Equipment and Accessories' started by skybolt58, Mar 8, 2012.

  1. skybolt58 Active Member

    Joined:
    Nov 9, 2008
    Messages:
    189
    Likes Received:
    2
    I just was given this 2510, the recieve works great, but there is no key up NOTTA nothing when mic keyed, also nothing when jumping pins 2 & 3 which I found out was the Xmit. or 1& 2 or 1 & 3. not even a tx light nothing.. any Ideas?




    Thanks
     
    #1
  2. Wire Weasel Senior Moment

    Joined:
    Dec 13, 2008
    Messages:
    2,450
    Likes Received:
    132
    Lotsa times it is the Key Up Transistor that fails in radios. One of the little small 3 legged black moon shaped things. Don't ask me which one it is in a 2510. Someone else here will know.

    Good luck
     
    #2
  3. skybolt58 Active Member

    Joined:
    Nov 9, 2008
    Messages:
    189
    Likes Received:
    2
    I sure would like to know what one that is. Hope it is something simple like that, but when I key up it don't even close the recieve, it still recieves when I key up ot cross the mic pins... I know what pins 4 & 5 Does! channels..

    Please help
     
    #3
  4. mr_fx Well-Known Member

    Joined:
    Oct 8, 2011
    Messages:
    1,474
    Likes Received:
    160
    hit the TX button on the radio
     
    #4
  5. skybolt58 Active Member

    Joined:
    Nov 9, 2008
    Messages:
    189
    Likes Received:
    2
    Done that already

    Done that, same thing still recieves when pushed..and no tx

    Thanks
     
    #5
  6. mr_fx Well-Known Member

    Joined:
    Oct 8, 2011
    Messages:
    1,474
    Likes Received:
    160
    not good
     
    #6
  7. skybolt58 Active Member

    Joined:
    Nov 9, 2008
    Messages:
    189
    Likes Received:
    2
    OK all I need to know, its in the dumpser now. thanks
     
    #7
  8. mr_fx Well-Known Member

    Joined:
    Oct 8, 2011
    Messages:
    1,474
    Likes Received:
    160
    have you tried all modes? AM? FM? LSB? USB?
     
    #8
  9. skybolt58 Active Member

    Joined:
    Nov 9, 2008
    Messages:
    189
    Likes Received:
    2
    yes I tried them all.. even CW. JUNK I guess
     
    #9
  10. dragracer W9WDX Amateur Radio Club Member

    Joined:
    Mar 31, 2009
    Messages:
    92
    Likes Received:
    6
    Like that was mentioned,.... the transmit transistor....
     
    #10
  11. skybolt58 Active Member

    Joined:
    Nov 9, 2008
    Messages:
    189
    Likes Received:
    2


    what is the TX Transistor Q number?
     
    #11
  12. Robb Yup

    Joined:
    Dec 18, 2008
    Messages:
    8,039
    Likes Received:
    963
    Impatience and radio doesn't mix well. It is a decent radio that is worth getting fixed. Send it to a shop, like Roger Bird if you can't fix it yourself. He is 'da man' when it comes to these radios.
    http://rogerbird.tripod.com/

    If you want to look at the schematic and figure out where the keying transistor is, here is the Service manual & Schematic link:
    Uniden HR2510 Service Manual
     
    #12
  13. skybolt58 Active Member

    Joined:
    Nov 9, 2008
    Messages:
    189
    Likes Received:
    2
    Radio is gone, thanks for everyones help!
     
    #13

Share This Page