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
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« Reply #4 on: September 22, 2005, 06:59:30 AM »
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.
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« Reply #5 on: September 22, 2005, 08:03:13 AM »
I ordered a manual with schematics, service info from Barco some years ago, I think it was not too expensive, www.barco.comTel 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,
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« Reply #6 on: September 22, 2005, 08:31:00 AM »
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« Reply #7 on: September 22, 2005, 08:32:18 AM »
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« Reply #8 on: September 22, 2005, 08:33:31 AM »
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« Reply #9 on: September 22, 2005, 08:34:47 AM »
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« Reply #10 on: September 22, 2005, 08:36:06 AM »
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« Reply #11 on: September 22, 2005, 08:38:45 AM »
Bad RAM leading to strange noises in the digital section,
Hope these schematics are helpful,
Sorry in advance if this was excessive schematic posting,
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« Reply #12 on: September 22, 2005, 02:54:48 PM »
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
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« Reply #13 on: September 23, 2005, 12:24:41 AM »
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.
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« Reply #14 on: September 23, 2005, 01:40:38 AM »
Hey yeah, whats goin on here?!?!?!? Couldn't open them either. Also a mac user. Thanks, josh
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