Convert a Spectra Motorcycle radio to a dash mount?

[2n2222]

Hello:

I have a Spectra motorcycle A4 rotary control radio and I would like to mount the control head directly to the front of the radio. I would also like to rig up a helmet kit and PTT switch. I read another post that the PTT, RX Audio and MIC audio are passed to the rear panel DB15.

As it stands right now, When I mount the A4 head directly to the radio, the radio is dead. The radio does power up with the proper motorcycle remote mount cable.

I looked in my Spectra service manual information and there is no information at all regarding jumpers and pinouts on the rotary A4 head.

Any ideas?

Best Regards,
Steve Kent
KW5CQ

[N4KVE]

I believe you need a HLN6285a board to link the head to the body. Worked on my A5 head motorcycle Spectra. GARY N4KVE

[2n2222]

Ok, I'll check the part number on my interconnect board when I get home. I imagine it's probably possible to modify mine with the proper pinouts?

Regards,
Steve Kent
KW5CQ

[2n2222]

I did the modification to the interconnect board and now it works fine.

Thank you for the suggestion!

[Will]

I looked in my Spectra service manual information and there is no information at all regarding jumpers and pinouts on the rotary A4 head.

Any ideas?

Best Regards,
Steve Kent
KW5CQ

The information for the many versions of the A4 Rotary heads are in a separate service manual. The interconnect boards information is also there.