Check for voltage on pin 5.
PIN1 MIC
PIN2 PTT
PIN3 DOWN
PIN4 UP
PIN5 + 5VOLT ( Max current 25Ma )( + 8VOLT ALR-22/24 )
PIN6 AUDIO OUT ( remote DR150TE-DR590-DR592-DR599-DR600 )
PIN7 MIC SCREEN/EARTH
PIN8 EARTH
Alan
--- In [email protected], "scatman_166" <clowt...@...> wrote:
>
> Quick question i have two dr-135 alincos and installed the tracker 2 tnc in
> both, at which time the dtmf mic no longer programs frequencies etc. Up down
> buttons work but nothing else does?? cannot direct program frequencies from
> mic.
> Any IDEAS????
>
