First lets see why the channel display is not lighting up. This indicates a problem internally with the radio. Is the CB/PA switch in the CB position? If the CB/PA switch is in the CB position and the display is still not lighting up then you more than likely have a problem with a voltage regulator. If the regulator shorts or opens then the meter lights will come on but the VCO / PLL circuit will be dead thus No receive or transmit.
My solution is above in the comments I forgot to add that you should make sure the antenna is grounded properly.You may have to add a wire to the antenna and secure it to the chassis of you vehicle. get back to me and let me know how you make out.
Answers & Comments
First lets see why the channel display is not lighting up. This indicates a problem internally with the radio. Is the CB/PA switch in the CB position? If the CB/PA switch is in the CB position and the display is still not lighting up then you more than likely have a problem with a voltage regulator. If the regulator shorts or opens then the meter lights will come on but the VCO / PLL circuit will be dead thus No receive or transmit.
My solution is above in the comments I forgot to add that you should make sure the antenna is grounded properly.You may have to add a wire to the antenna and secure it to the chassis of you vehicle. get back to me and let me know how you make out.