« Reply #24 on: June 13, 2019, 08:34:09 AM »
Quote from: DSatz on May 10, 2019, 05:20:11 PM
In my VMS 02 IB, there's an otherwise unpopulated circuit board with two flat spring contacts that are directly, physically in contact with the battery holder when the battery holder is in place.
This board is distinctly "wiggly" when the battery holder is not in place. (See photo below of a mysterious finger wiggling this board.) I think that this is by design--but I must admit that the design makes me just a little queasy.
--best regards
I've been inside my VMS's quite a bit over the years so I've gotten to know some of their quirkiness. You're correct...that loose board is by design...or should I say that it's supposed to be loose. Kind of weird that it's not fastened securely somehow when everything is installed properly, but that's how they all are. As far as I recall, there are only two functions of that board...one is to provide the two contact points for the battery sled and the other is to provide two wires (black and red) for power connection to the power input section of the VMS circuit, which is on the front board that sits directly behind the front panel.
As far as the battery sled making wonky contact, I have two suggestions. First is to gently pull out on the flat spring contacts to increase the amount of force they exert on the battery sled contacts. I've done this n a number of the VMS's I've owned. I know it's a bit unnerving to think about bending those silver tabs back out, but they're very springy and as long as you just give them a gentle pull and don't force anything, you won't fatigue the silver tabs enough to break them or cause any damage. Think of it this way...after many years those silver tabs have probably deformed slightly to flatten out a bit under continuous long term pressure from the sled contacts, so pulling them a bit might restore them to their original position.
Second thing to try is to slide a piece of cardboard or a thin spacer of some kind onto the back side of the battery sled to cause the sled to push up a bit firmer against the contacts and to take up any potential slack or movement that the battery sled might have while the lid is closed.
Hope this helps.
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Mic Capsules: Schoeps MK4 x 2, MK41 x 2, MK4S x 2, MK3 x 2, MK21 x 2, MK8 x 1, M934b x 5, M241 x 4, Nakamichi CP-701 x 2, CP-702 x 2
Mic Bodies: Schoeps m222 tubes, Schoeps CMC-4 (modified for 48v phantom), Schoeps CMMT-30 x 5, Nakamichi CM-700 x 2
Active Cable Systems: Schoeps KCY, Schoeps Modded KC5, Schoeps nbob and extensions
Recorders: SD788t x 2, Zoom F6, SD MixPre-3i, Deity PR-2, Zoom F3, Marantz PMD-661, Tascam DR-100i, Marantz PMD-620, Korg MR-1
Preamps: Sonosax SX-M2D2, Schoeps VMS-5U, Schoeps VMS-52UB x 2, Schoeps VMS-42UB, Schoeps VMS-02IB, Riotbox, Cooper CSPA-1
Misc: Benchmark Sonic AD2K+, Rycote Softie Screens, Movo Screens, Rycote INV mounts
Topic: Schoeps vms02ib DC connector info needed! (Read 53,490 times)