The pickup on my Shimano Flightdeck computer has ceased to function. It used to make a quiet ticking sound as the magnet passed the sensor, and now it's silent. The computer functions but doesn't pick up the sensor's input. No speed, no mileage. Basically it's now a fancy stopwatch. The magnet is fine, still magnetic, still positioned appropriately.

If this were the wireless version I'd be able to replace just the sensor, but it's not. It's the wired version. I think I'm SOL. Couple of questions before I ditch a $60 mount and buy the $80 wireless version:

1) anyone replace the sensor on one of these things? I could just buy a super cheap computer and cut/solder that sensor in to the system.

2) Is the RF antenna for the wired version in the mount or in the computer? If it's in the computer can I put a wireless sensor on this thing and just keep the wired mount? If you have the wireless version, can your computer pick up your sensor when the computer is disconnected from the bike?

Thanks.