Re: Echoplex input issues

[Michael Firman <maf@mlswebworks.com>]

I have two EDPs and I've noticed over the years that sometimes the 
memory
SIMMs (or whatever they are, DIMMs?) get unseated or oxidized or 
something and need
to be re-seated. When they get loose all sorts of strange behavior 
occurs. I also
had one of these (memory SIMMs) go bad once. Again the problem 
manifested
itself in all sorts of strange ways. As the last poster mentioned, 
EPROMs can also
become unseated and cause evil to occur.

On Thursday, October 9, 2003, at 10:14  AM, Jim Palmer wrote:

> regarding the old edp unit, i have an old oberheim edp and i
> made the voltage regulator change suggested on the ld edp pages.
> it was real easy and it runs nice and cool now.
>
> later i made the all the other edp page suggested mods
> and replaced the crystals.
>
> i still had occasional weirdness, but after i
> added the loop 4 upgrade, everything has been peachy...
> i'm betting the eproms weren't seated well or something.
>
> good luck...
>
>
>> -----Original Message-----
>> From: Mark Hamburg [mailto:mark_hamburg@baymoon.com]
>> Sent: Wednesday, October 08, 2003 3:06 PM
>> To: Looper's Delight
>> Subject: Echoplex input issues
>>
>>
>> As I noted about a month ago, something is going on with one
>> of my Echoplexes where the input essentially shuts down. The
>> input light glows, but nothing makes it into the loop. After
>> a couple weeks, it more or less mysteriously fixed itself but
>> it's now happened two more times in relatively rapid
>> succession. Each time I've gotten in back by booting up with
>> the parameter and record buttons pressed, but even this
>> hasn't always worked. Is there a reliable way to reboot the
>> machine when it happens? Is there a specific hardware problem
>> I should be worrying about?
>>
>> I've exchanged sporadic e-mail with Shane at Gibson, but I'd
>> like to find an answer or a work around that made me more
>> confident for Friday's show. I can swap back to my older EDP,
>> but it has heat sensitivity problems.
>>
>> Thanks.
>> Mark
>>
>
>
--
| Michael A. Firman
| maf@mlswebworks.com
| http://www.mlswebworks.com