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  1. I

    RCI 2980 EPT360014B 3 problems

    Question if fl3 10m4d was damaged would the tx/rx on sideband align on frequency?
  2. I

    RCI 2980 EPT360014B 3 problems

    dead key is equal on usb and lsb vr 7 makes minimal difference. IC 3 voltage is good.
  3. I

    RCI 2980 EPT360014B 3 problems

    RCI 2980 EPT360014B 3 problems Thread starter ira parker Start date Friday at 5:54 PM Tags None REPLY Unwatch I ira parker Member Friday at 5:54 PM Add bookmark #1 The short story, No tx got that resolved. Once tx was restored there is a 4-6 watt dead key on sideband ? Also only about...
  4. I

    RCI 2980 EPT360014B 3 problems

    The short story, No tx got that resolved. Once tx was restored there is a 4-6 watt dead key on sideband ? Also only about 10 watts output on ssb and vr#12 doesn't adjust it? AM works fine rx and tx, 22 watts out audio chain is good. Pll/vco took alignment just fine spot on frequency. Started Tx...
  5. I

    uniden washington 8719 negative voltage on bias

    Sorry guys been under they weather a few days here. Update installed the new 1419 and 945 companion part voltages look good and steady. I've also found a clear copy of the voltage chart. So i went thru all the ic's and double checked voltages everything looks good there. Still losing voltage to...
  6. I

    uniden washington 8719 negative voltage on bias

    I'm sure I have a 1419 some where have to dig them up, i just looked at the 1 in there now and its a sd1135 will have to look up the cross reference on that i know the original should be 1419 I've got some 945s for the companion part also. My schematic is blurry on the voltage reading for bce...
  7. I

    uniden washington 8719 negative voltage on bias

    Thanks Andy all voltage test are done to board ground, I've also found some negative voltage on tr 12 of the meter circuit s/rf side works no modulation movement at all i'll have to look into that to see if its common to the finals, but i haven't found out why its not pulling down the bias...
  8. I

    uniden washington 8719 negative voltage on bias

    receive all modes just fine, pa section works as should. has weak signal to monitor radio all modes. checked freqs all is good. pre driver is good has proper volts and is switching. in am mode has 12.8 volts to final and driver in receive switching to tx voltage drops to -9 volts. unplugged...
  9. I

    ft-2980r freq mod

    I posted this in the yaesu mods section also. considering buying one of these, not much info on the tx mod. anyone done one of these? wonder if it's the same as the 2900 mod ?
  10. I

    ft-2980r freq mod

    considering buying one of these, not much info on the tx mod. has anyone done this mod, is it the same as the ft-2900?
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