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It fixed Voice 6 when I had the identical problem on my Xpander ! 2012/1/28 Bakis Sirros <synth_freak_2000@...>

FYI C249 = Voice 6 C349 = Voice 5 C449 = Voice 4 C549 = Voice 3 C649 = Voice 2 C749 = Voice 1 2012/1/28 Karl Schmeer <shire03@...>

thanks Guys for all your help!???? :-) one more question: will the capacitors change fix the very very low output volume (its barely hearable) of voice 5 ? or this is yet another problem of the

Hello Bakis, The other posters have it right. You should replace?the coupling caps. Specifically I would replace?C549??on voice 5.? This?part fails often, and causes tuning fails.??BTW It must

Yep,- recap the 2.2U 50V ones,- there are 70 on the voiceboard and Digikey has ?em in a package of 100pc for cheap. Think about replacing Schmitt-Trigger chips as well, there are 2. Check also your

I was just going to say the same thing.? If you swapped all the chips, a good idea BTW, there's not much left voice to voice on the board to age or break down other than the electrolytic capacitors

Hi Bakis, mine had similiar issues which turned out to be to due to old capacitors... its been fine since it was recapped (around 3(ish) years ago)

hi everyone, new member here, my Name is Bakis. recently bought an Xpander and have the following problem: works and sounds great...? ...apart from voice 5, which, after its shipping to me, does not

This is interesting, I have a Prophet T8 where one of the voices have a longer release-time. On certain patches, this is very noticeable. Maybe I should check what 3372s are in there. WT

It's not just the Xpander/M-12. The Prophet-600 is pick about CEM3372s also. I have some of the older rev chips in stock. Doug synthparts.com

The newer rev D ICs from Technology Transport didn't work properly in my Xpander... A while back I had my Xpander serviced for one voice that would very faintly sustain indefinitely. It was not

When I replaced my Eproms for Voice and Processor I used a PLCC Extractor like this: http://www.ultrabios.com/graphics/plcc_extractor.gif will this work for pulling out the CEM 3372s as well ? I might

Hi all Oberheim Xpander users ! I bought my Xpander (US Made) in 1989 and been using it with Voice and Software versions 1.0 without any problems ever since. I read somewhere that it was advisable to

Hello, Every integrated circuit in the M12 is in a chip socket. It's quite possible one or several of the IC's have worked loose. Another possibility is that one or more of the ribbon cable connectors

Hello! Thank you for allowing me to join this group. I previously posted at the Oberheim group under a similar name. I am in the process of fixing up my Matrix-12, possibly for sale in a few months.

Hi, Check this out: http://www.kickstarter.com/projects/starrlabs/itar-turn-your-ipad-into-a-guitar An iTar might perfectly accompany the iXpander editor running on your iPad. As a guitarist, I think

I'm already dreaming. ... Thanks Michael! Tiitu

Hi, I uploaded some files to the group recently: Documents: - Matrix 12 preliminary operation guide - Matrix 12 overview - Matrix 12 spec sheet Patches: - Matrix12 factory Patches These files are

If you go to Digikey and look up the part number there is a technical drawing there that will give you dimensions etc. Probably best to look there. James R. Coplin *From:* xpantastic@...

Hi James, Please could you be so kind and upload the pictures in either of the following folders? http://groups.yahoo.com/group/xpantastic/photos/album/0/list