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11-12-2008, 10:24 AM
| #1 |
| Junior Member Join Date: Nov 2008 Location: paris france
Posts: 4
| MXR dynacomp (script) 1975 schematics
Hello everybody Im new here (from paris)  Im seaching for the schematics for my old MXR dynacomp (script) 1975 I ave found the main IC (CA 3080) but a transistor is broken and has no reference on it. thanks |
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11-12-2008, 10:48 AM
| #2 |
| Senior Member Join Date: Dec 2007 Location: Poland
Posts: 126
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Is it this one: http://www.mif.pg.gda.pl/homepages/t...s/dynacomp.gif ? All transistors are 2N3904. Mark |
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11-12-2008, 11:04 AM
| #3 |
| Junior Member Join Date: Nov 2008 Location: paris france
Posts: 4
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OUAHHH that is fast ... the only thing that whorries me is the sentence "the transistors may be 2n3904..." Thanks I will try and replace and give news |
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11-13-2008, 07:26 PM
| #4 |
| Senior Member Join Date: May 2006
Posts: 1,124
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Voulez-vous tout simplement que ça fonction ou qu'il est précis pour l'époque historique? Si tous que vous voulez est un Dynacomp fonctionnant, un 2N3904 sera suffit.
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11-22-2008, 10:48 AM
| #5 |
| Junior Member Join Date: Nov 2008 Location: paris france
Posts: 4
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Ok thanks I have got te transistors and te IC but now I see there is a little resistor on the oter side of the board is that normal ? I am affraid I have done some mods years ago. Do you have a photo of the board behind?
Last edited by tboy; 11-23-2008 at 12:32 AM. Reason: attached image |
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12-01-2008, 12:58 AM
| #6 |
| Senior Member Join Date: Jul 2006
Posts: 428
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I have an old script logo one, the transistors on mine are MPS5172 Code: http://www.onsemi.com/pub_link/Collateral/MPS5172-D.PDF It's a good thing I opened mine up - the containing foam had gone rotten so due for a clean out.... I'll make up something to stop it shorting. Here's 2 pic's of my Dyna Comp PCB. Hope this is useful to you. |
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12-03-2008, 03:35 PM
| #7 |
| Junior Member Join Date: Nov 2008 Location: paris france
Posts: 4
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thank you, this is great becaus as I see there is a big modification on mine hope I can repair it now |
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