OK, this is your best option... Send your Sennheiser back for repair. I've sent two G3 series back for the same issue and the cost is very reasonable, I think it was like $60 including the return shipping and check the warranty, it is very long and the repair might be free.
The XLR to 1/8" won't power the mic, that's not how it works. But there are some cheap adapters that can provide 1.5 volts (AA cell) feed through for mics like this. Rode used to have a power adapter for some of their DSLR mics, but I'm not finding it. But the Sennheiser might be the easiest path and something I can definitely help build because we have an 8 count system in our studio. Anyway you can get me a microphone? Or I could prototype something with the Motocom because that's what I have in my helmets. I have the threaded locking 1/8" connectors here at work. Check with the bosses and see if they could do a trade for credit on the store, works as good as cash for me and I need some real gloves for my lady for riding on the Harley, need a coat too but this simple adapter certainly wouldn't be worth the price of a coat. Probably in the $30 to $50 range by the time connector price is figured in. I don't know anyone closer to you that would be easier to work with but you might talk to some of the engineers at the closest TV station.
Or you can try a simple 2.5mm to 3.5mm adapter and a 2.5mm extension cable, would be a bit cheaper and might work just as well. I tend to stay away from adapters if possible because they have a tendency to unplug or break just when you need them most.
I don't have any of the 5 pin connectors for Lectro, so I'd have to order them. I would expect $5 each plus shipping for something like that which makes it a more expensive adapter. And since I don't have a way to test it, would be harder to make sure it works.
A Cafe is on my list of things to build, someday when I have the money.
If you are interested in having me build something, PM me and I'll get you my Revzilla customer number so you know I'm a real person. And here's a link to another AV related post here, doesn't demonstrate any electronics skills, but shows some of the things I've learned to do:
http://www.dvxuser.com/V6/showthread.php?338827-Do-it-myself-focus-gears
The XLR to 1/8" won't power the mic, that's not how it works. But there are some cheap adapters that can provide 1.5 volts (AA cell) feed through for mics like this. Rode used to have a power adapter for some of their DSLR mics, but I'm not finding it. But the Sennheiser might be the easiest path and something I can definitely help build because we have an 8 count system in our studio. Anyway you can get me a microphone? Or I could prototype something with the Motocom because that's what I have in my helmets. I have the threaded locking 1/8" connectors here at work. Check with the bosses and see if they could do a trade for credit on the store, works as good as cash for me and I need some real gloves for my lady for riding on the Harley, need a coat too but this simple adapter certainly wouldn't be worth the price of a coat. Probably in the $30 to $50 range by the time connector price is figured in. I don't know anyone closer to you that would be easier to work with but you might talk to some of the engineers at the closest TV station.
Or you can try a simple 2.5mm to 3.5mm adapter and a 2.5mm extension cable, would be a bit cheaper and might work just as well. I tend to stay away from adapters if possible because they have a tendency to unplug or break just when you need them most.
I don't have any of the 5 pin connectors for Lectro, so I'd have to order them. I would expect $5 each plus shipping for something like that which makes it a more expensive adapter. And since I don't have a way to test it, would be harder to make sure it works.
A Cafe is on my list of things to build, someday when I have the money.
If you are interested in having me build something, PM me and I'll get you my Revzilla customer number so you know I'm a real person. And here's a link to another AV related post here, doesn't demonstrate any electronics skills, but shows some of the things I've learned to do:
http://www.dvxuser.com/V6/showthread.php?338827-Do-it-myself-focus-gears
