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MTVA disassembly

Posted: Sun Nov 05, 2006 10:03 am
by AHSGA
I let the smoke out of my convertacom :( after purchasing some power connectors that have an opposite pin out than the pinout on the batlab site( and applying an unfused 12 volts). I can't figure out how to disassemble the darn thing to make a repair attempt. Does the metal piece on the back come off first? :-?

Posted: Sun Nov 05, 2006 11:55 am
by chartofmaryland
If your speaking of the "brain" of the MTVA, then you want to go for the 4 screws on the bottom and side of the unit where then your can access the printed board.


CoM

Posted: Sun Nov 05, 2006 2:15 pm
by AHSGA
Perhaps my nomenclature is incorrect. Not sure that I would describe this as a brain. This convertacom has no visible screws on top, bottom, or sides. NTN5613A. convertacom for MT1000. Has the four soft buttons on the front along with a display. One side has PAC/RT on off switch along with the mic jack. The back side has a db25 connector for the speaker, two switches, antenna jack, and the misbehaving power connector. The radio slides almost completely into the unit from the front.

Thanks

Posted: Sun Nov 05, 2006 10:35 pm
by techie
Had me stumped for a bit, but I found my manual..

with everything removed, and the mtva unlocked, place the mtva face down on a flat surface, with the connectors on top.

you will see two L shaped slots at the top corners, adjacent to the connectors. you will see two tabs along the short side of the L. using a 1/8" flathead, carefully pry these tabs inwards, away from the case to release the top and bottom halves.

I've scanned the appropriate two pages from the manual, and they can be found at:

http://www.tantivy.net/batlabs/mt1000-mtva.pdf

Posted: Mon Nov 06, 2006 2:17 pm
by wa2zdy
I've done this with the Genesis MVA. It's a pain. Pray, pry and keep your fingertips out of the way.

Posted: Mon Nov 06, 2006 7:52 pm
by AHSGA
That was very easy, now knowing how.

Thank you very much. I would love to see more of this manual. Any chance?

My next question is, where do I put the smoke back in?

Regards,

Posted: Mon Nov 06, 2006 7:54 pm
by KE7DZZ
I have two of these units in need of repair, are parts ( the inner electronics) readily available or repairable? I'll give a reasonable amount of $ for a service manual ( or copy ) so that i can repair these things.

Posted: Thu Nov 09, 2006 4:05 pm
by techie
When I have a chance, I'll scan in the rest of the manual.

Posted: Thu Nov 09, 2006 6:06 pm
by AHSGA
Thank you.

Regards

Posted: Wed Nov 15, 2006 6:41 pm
by AHSGA
I'm still looking for a manual. All help would be appreciated.

REgards

Posted: Wed Nov 29, 2006 7:40 pm
by techie
I scanned the rest of the manual.. it's online at:
http://www.tantivy.net/batlabs/MTVA_service.pdf

If somebody has Acrobat, and wants to remove the oversized duplicate page, let me know.. I can create pdf's, but not edit them..

Posted: Wed Nov 29, 2006 9:46 pm
by radio-link
techie wrote:I scanned the rest of the manual.. it's online at:
http://www.tantivy.net/batlabs/MTVA_service.pdf

If somebody has Acrobat, and wants to remove the oversized duplicate page, let me know.. I can create pdf's, but not edit them..
I will try to do and let you know the link.

Re: MTVA disassembly

Posted: Thu Feb 12, 2009 9:06 am
by philter
I too made the mistake of following the incorrect pinout and now have a MTVA paperweight. Any suggestion on what specific component might be in need of replacement, or at least some general direction? I am capable of performing the repair, but not so great on diagnosis.

Re: MTVA disassembly

Posted: Thu Feb 12, 2009 5:41 pm
by AHSGA
I never found the smoke. I have a box full of parts though. Rube was doing his thing when he designed it.

Regards