Sennheiser MKH 70, Tech HELP!

M

MagicCat

Well-known member
I have a Sennheiser MKH 70 shotgun mic. I went to disconnect the cable the other day and pin #1 pulled out of the internal Male XLR connector. There are 4 screws at the end of the mic, which I removed expecting the end to pull out. It doesnt. There is a plastic sleeve in there and i have no clue how to remove this in order to fix the Male connector.

Does anyone have any experience fixing these mics? The XLR should not be rocket science to remove. But, it is beyond me how this comes apart. It is a rather expensive mic and I dont want to kill it trying to figure it out.

I have to leave out for a 7 day shoot half way across the country thursday, Im in a real bind to fix this.

David Walker

P.S. I tried to add a little solder to the end of the pin, then place it back in the socket it pulled out of, heated it with the hopes the solder would fuse itself back to the mounting inside. It was a no-go. I dont want to heat the heck out of the pin and burn up something inside.
 
MagicCat said:
I have a Sennheiser MKH 70 shotgun mic. I went to disconnect the cable the other day and pin #1 pulled out of the internal Male XLR connector. There are 4 screws at the end of the mic, which I removed expecting the end to pull out. It doesnt. There is a plastic sleeve in there and i have no clue how to remove this in order to fix the Male connector.

Does anyone have any experience fixing these mics? The XLR should not be rocket science to remove. But, it is beyond me how this comes apart. It is a rather expensive mic and I dont want to kill it trying to figure it out.

I have to leave out for a 7 day shoot half way across the country thursday, Im in a real bind to fix this.

David Walker

P.S. I tried to add a little solder to the end of the pin, then place it back in the socket it pulled out of, heated it with the hopes the solder would fuse itself back to the mounting inside. It was a no-go. I dont want to heat the heck out of the pin and burn up something inside.
Click to expand...

IMHO, send the mic to Sennheiser for repair and rent a replacement for your shoot.
 
Thanks for the suggestions, unfortunately, there isn't a rental house anywhere around me or the location shoot. Another mic is not an option, plus I need audible continuity in this production,.. Too late to change mics.

I made up a little 8 inch extension cord for it, plugged it in with the loose pin, wiggled the hell out of it and it is still stable. I guess I will just refrain from removing the extension cord until I'm through the shoot. That trick has worked many times before.

I try to keep all super basic repairs to our equipment, such as this should have been, in-house. This one is really weird, Im guessing they must have some sort of propriatary tool to dismantle this mic.

If it were under 300 bucks, I would push my limits. But I think this runs upwards of 1,500 used,.. not a good candidate for "educational training". Unless someone else chimes in or has a schematic/parts blowup, I will take your advice and send it to the SennGods when I get back.

Thanks

David Walker
 
MagicCat said:
...
If it were under 300 bucks, I would push my limits. But I think this runs upwards of 1,500 used,.. not a good candidate for "educational training". Unless someone else chimes in or has a schematic/parts blowup, I will take your advice and send it to the SennGods when I get back.

Thanks

David Walker
Click to expand...

Try a MSRP of $2975, definitely not something to bash up!
 
MagicCat said:
Thanks for the suggestions, unfortunately, there isn't a rental house anywhere around me or the location shoot. Another mic is not an option, plus I need audible continuity in this production,.. Too late to change mics.

I made up a little 8 inch extension cord for it, plugged it in with the loose pin, wiggled the hell out of it and it is still stable. I guess I will just refrain from removing the extension cord until I'm through the shoot. That trick has worked many times before.

I try to keep all super basic repairs to our equipment, such as this should have been, in-house. This one is really weird, Im guessing they must have some sort of propriatary tool to dismantle this mic.

If it were under 300 bucks, I would push my limits. But I think this runs upwards of 1,500 used,.. not a good candidate for "educational training". Unless someone else chimes in or has a schematic/parts blowup, I will take your advice and send it to the SennGods when I get back.

Thanks

David Walker
Click to expand...

The fact that you managed to pull the innards out of the exterior tube and figure out a way to make contact with pin-1 suggests that you have above average mechanical/electrical chops (and a very small Phillips screw driver). But going further inside to try to fix the connector is more involved (and requires an even smaller screwdriver). Even though the service shop at Trew Audio does certain microphone repairs, we would still advise shipping the mic to Sennheiser USA for the repair you need. But if you do decide to further disassemble your 70, here's a good trip for the field... make a piece of double sided gaffer's tape to put the tiny screws on so they will not roll away.

Glen Trew
 
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