Probably not, as the headset mic is pretty far down the electrical chain, especially if the copper wire windings were discolored or burnt...UNLESS somehow 12V got across the hot & return side, it only takes millisecond surge at 12V to damage the fine wires used in the microphone (made to handle millivolts rather than multiple volts. You can also use a dry cell (1.5V) or DMM on Rx1 ohms scale to "click" check the microphones by grounding - side terminal of mic (off the bike/amp of course) and momentarily touching the + side to + side of microphone wiring...should hear faint "click"...can also test your headsets to see if they are okay also, as stated before.
Since the mics are dynamic...just find a replacement passenger mic or swap with the working rider' mic and see if the problem switches sides (bad rider mic) or remains the same (bad passenger pre-amp).
If the rider mic ckt runs the passenger mic properly, you got a bad passenger pre-amp (the good rider mic will not work with passenger pre-amp) in that case).
Well the plot thickens.....
Today, we were doin a poker run, the second leg was at the local Harley dealership here in Jackson, MS. Upon returning to the bike to head to the third leg, the bike would not even kick over.....dead.
Talk about luck, we had already done a 20 mile leg from the start position. The Mechanics pushed the door stop into the shop, did a few checks and found that the starter relay had burned out. Replaced...
Ok at this point? Rolled up to the pumps at a gas station 20 yards from the shop, killed the engine and gassed up. Got back on and nothing. Our friendly mechanics pushed it back into the shop and found that it popped the starter/ignition fuse and now the system relay!
Wonderful, no my day is getting worse, of all the bikes in the poker run, my wife and I were the only ones to have pairs after the first two stops. :small3d031:
Ok, fixed yet? Hmmm nope... They rolled it to the door, wife and I got on and poof, nothing, popped the starter fuse again...grrrrrrrrrr
Well, now its spending the rest of the weekend in the shop till Monday or Tuesday.
BTW, one of the open circuits goes to the Radio/CB and Intercom and the based accessories switch, i.e. the parade fan on the schematics....
Ok so far we have smoked a starter relay and system relay three starter ignition fuses..Whats left? EFI Ignition coil, Electronic Control Module and various switches...
Homer, the Harley God of Jackson MS Harley, whom customized this jewel said, hmmm seems the intercom is a symptom of the bigger issue. But the Battery started it all with the low voltage/high voltage spikes because of the lame brain previous owner whom soldered the positive terminal when he had stripped the threads...
Sounds like the Starter...
But all in all, It seems the Battery started the cascade of failures...
Say the least, I wished the individual whom I bought it from was within arms reach at the moment...it would be a come to Jesus moment.