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[bushwick]

Anyone here familiar with this unit? I haven't used the unit in a long time and thought it might be perfect for something. Flipped it on and ZZZZZZZZZZZZZZ - a super cool sound of a transformer with some reverb tail on it. Actually, that was really cool so I sampled it. So I opened it up and it looks like I just had a big ass Filter cap go bad (brown goop up on top). Got me thinking, anyone know these units? And mods? It always seemed to be a bit noisy. Its cool and I don't have anything that quite does what this does (KSP-8, TC m2000, ITB Stuff) so keeping this around for those special moments always seemed like a good idea. Anyway to improve the noise aspects of it? Has anyone modded it?

Most importantly, does anyone have a schematic?

Thanks,
joshua

[oldgearguy]

bushwick wrote on Mon, 19 September 2005 15:19

Anyone here familiar with this unit? I haven't used the unit in a long time and thought it might be perfect for something. Flipped it on and ZZZZZZZZZZZZZZ - a super cool sound of a transformer with some reverb tail on it. Actually, that was really cool so I sampled it. So I opened it up and it looks like I just had a big ass Filter cap go bad (brown goop up on top). Got me thinking, anyone know these units? And mods? It always seemed to be a bit noisy. Its cool and I don't have anything that quite does what this does (KSP-8, TC m2000, ITB Stuff) so keeping this around for those special moments always seemed like a good idea. Anyway to improve the noise aspects of it? Has anyone modded it? Most importantly, does anyone have a schematic? Thanks, joshua

Funny, mine died about a month ago.  Haven't had time to look inside yet.  I got my schematics from EMT.  If you have a hassle getting them direct, PM me.  They're big, so copying can be done, but it'll be a bear.

Mine wasn't noisy.  Do you have an owner's manual?  There's some internal jumpers and I seem to recall it being Pin 2 hot.

[bushwick]

Hi OGG-

Thanks for the reply. I do not have the manual. You know, it would be a huge help if you could tell me what the values of the filer caps are. The one that went in mine, or so I am pretty sure is a 22,000

[oldgearguy]

bushwick wrote on Tue, 20 September 2005 15:44

Hi OGG- Thanks for the reply. I do not have the manual. You know, it would be a huge help if you could tell me what the values of the filer caps are. The one that went in mine, or so I am pretty sure is a 22,000 oldgearguy Full Member Offline Posts: 106 Re: EMT 244 OK - there's a few in here to check: For the +/- 15, there are two 4700uF/40v caps. For the +/- 5, there are two 22,000uF/16v caps. If the transformer taps are labelled, the +/- 15 come from taps 13,14,15 and the +/- 5 comes from two unlabelled taps next to that.  (I'd guess 16,17, but the schems are unlabelled). While you're in there, take note of a small DIP jumper block up by the input jacks.  If there's a 4.7k resistor across pins 3 and 14, then the input is set up for using the unbalanced jack.  No resistor = balanced input.  (There's other jumper differences, let me know if you need to pin-by-pin details). Oh, there's also a note that when you're adjusting the PS voltages, adjust them in this order only:  +15, -15, 5 (Looking at the PS board so that the 3 trimpots are arranged with 2 vertically to the left and one to the right, means that the +15 is top left, -15 is bottom left, and 5 is to the right). Hope that helps. RMoore Hero Member Offline Posts: 4584 Re: EMT 244 I ordered a manual with schematics, service info from Barco some years ago, I think it was not too expensive, www.barco.com Tel in Germany: (+49) 78259060 I had a +- $1000 repair estimate on my 244 via Eela Audio in Holland who was the EMT / Barco rep for NL. (I spotted work orders laying there for about 4 other EMT 244 units and they all had about the same giant repair bill - I think basically they just replaced the whole motherboard) . I said forget that, got the manual and a tech friend got it working with a few new ics. A $7 repair.. It worked for about 2 weeks, sounded cool in grainy kind of way, and then went on tilt again and hasn't been touched since, Was never sure it was working 100% properly when it did work, People's Republic of Ryan http://www.myspace.com/twilightcircus  http://www.youtube.com/user/Ryonik   By the end of today, another day is gone forever. You will never get it back. We must never let up for a second. Work harder at every single thing - Terry Manning  You miss 100 percent of the shots you never take - Wayne Gretzky RMoore Hero Member Offline Posts: 4584 Re: EMT 244 EMT 244 PSU 1 People's Republic of Ryan http://www.myspace.com/twilightcircus  http://www.youtube.com/user/Ryonik   By the end of today, another day is gone forever. You will never get it back. We must never let up for a second. Work harder at every single thing - Terry Manning  You miss 100 percent of the shots you never take - Wayne Gretzky RMoore Hero Member Offline Posts: 4584 Re: EMT 244 People's Republic of Ryan http://www.myspace.com/twilightcircus  http://www.youtube.com/user/Ryonik   By the end of today, another day is gone forever. You will never get it back. We must never let up for a second. Work harder at every single thing - Terry Manning  You miss 100 percent of the shots you never take - Wayne Gretzky RMoore Hero Member Offline Posts: 4584 Re: EMT 244 People's Republic of Ryan http://www.myspace.com/twilightcircus  http://www.youtube.com/user/Ryonik   By the end of today, another day is gone forever. You will never get it back. We must never let up for a second. Work harder at every single thing - Terry Manning  You miss 100 percent of the shots you never take - Wayne Gretzky RMoore Hero Member Offline Posts: 4584 Re: EMT 244 People's Republic of Ryan http://www.myspace.com/twilightcircus  http://www.youtube.com/user/Ryonik   By the end of today, another day is gone forever. You will never get it back. We must never let up for a second. Work harder at every single thing - Terry Manning  You miss 100 percent of the shots you never take - Wayne Gretzky RMoore Hero Member Offline Posts: 4584 Re: EMT 244 People's Republic of Ryan http://www.myspace.com/twilightcircus  http://www.youtube.com/user/Ryonik   By the end of today, another day is gone forever. You will never get it back. We must never let up for a second. Work harder at every single thing - Terry Manning  You miss 100 percent of the shots you never take - Wayne Gretzky RMoore Hero Member Offline Posts: 4584 Re: EMT 244 Bad RAM leading to strange noises in the digital section, Hope these schematics are helpful, Sorry in advance if this was excessive schematic posting, People's Republic of Ryan http://www.myspace.com/twilightcircus  http://www.youtube.com/user/Ryonik   By the end of today, another day is gone forever. You will never get it back. We must never let up for a second. Work harder at every single thing - Terry Manning  You miss 100 percent of the shots you never take - Wayne Gretzky bushwick Hero Member Offline Posts: 624 Re: EMT 244 Frieneds, Thank you very much for the help. I am sure you're time is rare so I can appreciate the help. That is probably all the stuff I need to get her up again. Hey, if you guys want, I sampled her sounding like a transformer at a substation blowing up. Cool for  black and white horror films, perhaps Halloween. Whatever. Cannot thank you enough for the help. Best, joshua Joshua Kessler bushwick  studio brooklyn, ny www.bushwickstudio.com David Kulka Hero Member Offline Posts: 578 Re: EMT 244 Ryan, what kind of files are those?  I DL'd them but was unable to open them.  I'm using a Mac, not that it should matter much.  Thanks. http://www.studioelectronics.biz Service & Restoration of UREI dbx Neve Eventide Marshall AMS Tube Gear and more bushwick Hero Member Offline Posts: 624 Re: EMT 244 Hey yeah, whats goin on here?!?!?!? Couldn't open them either. Also a mac user. Thanks, josh Joshua Kessler bushwick  studio brooklyn, ny www.bushwickstudio.com Print Pages: [1] 2 3  All   Go Up « previous next » R/E/P Community > R/E/P > R/E/P Archives > Bruno Putzeys (Designer) - Dave Hecht (Master Tech) > EMT 244   SMF 2.0.19 | SMF © 2021, Simple Machines | Terms and Policies XHTML RSS WAP2 Site Hosted By Ashdown Technologies, Inc. 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[oldgearguy]

OK - there's a few in here to check:

For the +/- 15, there are two 4700uF/40v caps.
For the +/- 5, there are two 22,000uF/16v caps.

If the transformer taps are labelled, the +/- 15 come from taps 13,14,15 and the +/- 5 comes from two unlabelled taps next to that.  (I'd guess 16,17, but the schems are unlabelled).

While you're in there, take note of a small DIP jumper block up by the input jacks.  If there's a 4.7k resistor across pins 3 and 14, then the input is set up for using the unbalanced jack.  No resistor = balanced input.  (There's other jumper differences, let me know if you need to pin-by-pin details).

Oh, there's also a note that when you're adjusting the PS voltages, adjust them in this order only:  +15, -15, 5

(Looking at the PS board so that the 3 trimpots are arranged with 2 vertically to the left and one to the right, means that the +15 is top left, -15 is bottom left, and 5 is to the right).


Hope that helps.

[RMoore]

I ordered a manual with schematics, service info from Barco some years ago, I think it was not too expensive,
www.barco.com
Tel in Germany: (+49) 78259060

I had a +- $1000 repair estimate on my 244 via Eela Audio in Holland who was the EMT / Barco rep for NL. (I spotted work orders laying there for about 4 other EMT 244 units and they all had about the same giant repair bill - I think basically they just replaced the whole motherboard) . I said forget that, got the manual and a tech friend got it working with a few new ics. A $7 repair..
It worked for about 2 weeks, sounded cool in grainy kind of way, and then went on tilt again and hasn't been touched since,
Was never sure it was working 100% properly when it did work,

[RMoore]

EMT 244 PSU 1

[RMoore]

[RMoore]

[RMoore]

[RMoore]

[RMoore]

Bad RAM leading to strange noises in the digital section,

Hope these schematics are helpful,

Sorry in advance if this was excessive schematic posting,

[bushwick]

Frieneds,

Thank you very much for the help. I am sure you're time is rare so I can appreciate the help. That is probably all the stuff I need to get her up again. Hey, if you guys want, I sampled her sounding like a transformer at a substation blowing up. Cool for  black and white horror films, perhaps Halloween.

Whatever. Cannot thank you enough for the help.

Best,
joshua

[David Kulka]

Ryan, what kind of files are those?  I DL'd them but was unable to open them.  I'm using a Mac, not that it should matter much.  Thanks.

[bushwick]

Hey yeah, whats goin on here?!?!?!?

Couldn't open them either. Also a mac user.

Thanks,
josh