Originally Posted by shoswell
If you get it to work, let me know what I did wrong! Attmpted the same thing and I am having issues...
Well, we both have issues. I stopped by the radio shop on the way home from work and picked up an Icom. Also picked up a remote mic/spkr for 16 bucks that has the combined 2.5/3.5 mm plugs on it. Thought I might use that plug for the connection to the BC-3.
When I got home I found that I had two cables: one with 2.5mm on each end, one with 3.5mm on each end. Figured I'd use these; they were stereo plugs but that shouldn't matter; the schematic for the 200 BMW part uses mono plugs. That way I'd have enough plugs for two adapters.
So I have a couple PS/2 Keyboards and I disconnected the cable from one. Using my ohm meter I trace the wires. First problem: the cable has four conductors and a shield. Problem is, the pin that should go to Mic Negative isn't connected to anything. Tried connecting the shield to that, and plugged it in. Seemed like a got a tone in the headsets when I turned the radio on, I don't have another radio to transmit back and forth, figured I'd hear something and see the transmit led when I hit the PTT. I didn't.
I even cut apart the 6-pin DIN connector and moved the wire from the N/C pin to the mic neg. Still didn't work. I'm not hearing anything in the headset, now transmit from the PTT. Tried my second keyboard cable, same thing four conductor and shield, pins don't seem to match up with the 200 schematic. Maybe what i need is a mouse cable? Don't have one laying around here at home. Or maybe just a fresh 6-pin DIN to build it up from scratch.
Pretty frustrating though, seems like a pretty simple cabling job; one speaker one mic connection. Do I have the 6-pin DIN upside down? The schematic shows solder side, I assume that means from the back of the connector.
Is there anything I need to do to the Icom to initialize it? Didn't seem to be anything in the manual indicating that.