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Looper's Delight
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There is an issue with 4MB SIMMs that have 9 chips on them; these screw the unit up and cause the noises you experienced; complicated issue to do with capacitance and timing. You need 3 or 2 chip 4MB SIMMs. -----Original Message----- From: Ben Grossman [mailto:nostyle@sympatico.ca] Sent: 04 November 2004 17:54 To: loopers-delight Subject: misbehaving EDP! Help please! Hello to you all, I recently bought a used Oberheim EDP with loop III and 2x 1meg and 2x 256k simms in it. It worked fine when I got it. I then put in the loop IV chip (thanks, Kim). It worked fine. After much searching I finally found 4 4meg simms to put in. I put them in and it showed the full 198 seconds upon start-up. Now I started having intermittent (then more frequent) episodes of full volume nasty noise on the output whenever I tried to record. An amazing noise, really...I enjoyed putting it through effects and making Autechre-type sounds for a full five minutes or so, but then decided that I wanted a lightly more flexible machine... I assumed that one (or more) of the RAM sticks was suspect so I started to swap the sticks to see if I could find the culprit. Now it seems that the machine will not recognise ANY of my simms in the front two slots. I have 2 4megs in the rear slots and it SEEMS to be OK (albeit at only 100 seconds). I'm keeping it warm now to see: I have gigs this weekend...you know the routine. So. Are the RAM slots damaged (my problem all along) and my fiddling did them in? Problems with the OS or other components? Should I try a parameter reset? Or something more radical? More to the point: has anyone experienced similar problems? I did check the archives, but found nothing similar. If I'm truly up the creek, does anyone know of a place in Canada (S Ontario, preferably) that could fix 'er up? Thanks very much!!!! Regards, Ben ------------------------------------------------------------------------ ----------------------- Ben Grossman ben@macrophone.org http://www.macrophone.org http://www.posttraditional.ca ------------------------------------------------------------------------ ----------------------- Ben Grossman ben@macrophone.org http://www.macrophone.org http://www.posttraditional.ca