Cobra 29 help

[Oldtimer]

Hello.
When I key up my 29 the lights go out till I unkey.
Also the channel selector stays on 19.
I can hear the channel clicking when turning the knob and I can see the shaft turning in the back.
Thanks

 

[spider451]

i would say u have the instant 19hannel switch on and cant change channel. the other problem is probibly a resister next to a regulater near the mic jack .