Realistic TRC-446 - WX works but CB side dead

[radionerd]

Hi, I have a Realistic TRC-446. It powers up with the weather side working fine, but the CB side is dead. The Tx/Rx light is off (NOT green) while in receive, turns red when I key the mike. The needle never moves, even when attempting SWR calibration. I get a good "thunk" when I switch ACE on and off, otherwise nearly silent. With volume on full, I have a bit of hum which disappears when I turn up the squelch just a bit. Any suggestions? Thanks.

 

[Rwb]

look inside n check the so239 connection first.

 

[nomadradio]

Had no luck turning up any service data, not even a schematic diagram. The wayback machine had only the owner's manual.

73

 

[Smokinone]

Found this on another forum "
The trc-446 is made by MAXON & is essentially a Maxon MCB-100WXD with cosmetic
differences. The internal board design is NOTHING like any Uniden , Cobra or
Ranger CB radio. These models are well built, but don't "peak up" well &
aren't able to "do" xtra channels. A Uniden 76/78 or Cobra 29 is a much better
radio"
I don't know how factual it is though.