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Uniden Washington with Digi Scan 400 installed

Discussion in 'General CB Services Discussion' started by dirtdevil1, Apr 26, 2012.

  1. dirtdevil1

    dirtdevil1
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    I just in stalled a super clean Digi Scan 400 in my Uniden Washington with the 8719 PLL and aligned the radio according to proper procedure from instructions. My problem is this.....when the radio is keyed it transmits fine but after a few seconds of holding down the key it starts motor boating and buzzing badly and the TX/RX led flashes back and forth with the buzzing. The radio was in excellent operating condition prior to the conversion. Any ideas?


     

  2. Robb

    Robb
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    Yup

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    Think I would re-trace all of the steps I took and take NOTHING for granted.
    Be your own worst enemy here and it might yield the desired result . . .
     
  3. jazzsinger

    jazzsinger
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    Bullshit Buster

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    as Robb says double check your work and the instructions,

    if all's ok it might be an issue with the pll not locking with the vco free running or it could be the tx mixer isn't broadbanded enough,

    best thing to do is once your sure its all wired correct is try it within the radios normal bandwidth before you try the extra frequencies, if its ok there, then chances are the vco and/or tx mixer will need broadbanding.

    a few tips from Lou Franklin that might help you out:SECRETS OF BROADBANDING CB RADIOS
     
  4. dirtdevil1

    dirtdevil1
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    I checked and rechecked...it is all just like the instructions asked to do. i know the unit was working flawlessly on a 2000gtl with zero problems. I guess I will just send it to someone with a great deal more experience than me. Does anybody know of a good tech besides DTB radio? He says he no longer works on modified radios.
     
  5. Robb

    Robb
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    Yup

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    Are all of the dip switches set correctly?
     
  6. unit_399

    unit_399
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    EL CAPO

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  7. dirtdevil1

    dirtdevil1
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    Hi Robb yes the switches are for the correct 8719 with the correct crystal.
     

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