Search found 760 matches

by Rasputin
Tue Mar 24, 2020 3:12 pm
Forum: HELP!
Topic: Help to identify E-mu Emax 1 Rack Modification Mod
Replies: 1
Views: 83

Re: Help to identify E-mu Emax 1 Rack Modification Mod

It looks like it has been modified as there are blue wires soldered to various components on the mainboard. They aren't "mods" in the sense that the owner was trying to achieve something beyond what the factory inteneded. Those blue wires are normal and added by the factory as part of an engineerin...
by Rasputin
Mon Mar 16, 2020 6:38 pm
Forum: HELP!
Topic: Ensoniq EPS-16+ Repair (stuck in test mode)
Replies: 10
Views: 548

Re: Ensoniq EPS-16+ Repair (stuck in test mode)

belzrebuth wrote:
Mon Mar 16, 2020 1:59 pm
It was the UART chip after all, replaced it and the unit now boots.
Great to hear. Now to solve the SCSI mystery in the other unit...
by Rasputin
Thu Mar 12, 2020 3:14 pm
Forum: HELP!
Topic: Ensoniq EPS-16+ SCSI issue
Replies: 13
Views: 602

Re: Ensoniq EPS-16+ SCSI issue

I have an EPS16+ rack that came with a ZIP100+ and I'm sure it worked without any mods. I also put the scsi power on a switch as I found having term power on and no scsi device attached, on boot up the EPS16+ gets confused and throws a wobbley. I think it hangs, locks up. Is it possible that you ha...
by Rasputin
Wed Mar 11, 2020 5:32 pm
Forum: HELP!
Topic: Ensoniq EPS-16+ SCSI issue
Replies: 13
Views: 602

Re: Ensoniq EPS-16+ SCSI issue

belzrebuth wrote:
Tue Mar 10, 2020 2:34 pm
Btw are the schematics for the scsi option avalaible anywhere?
You were already so close to the schematics.

http://zine.r-massive.com/ensoniq-techn ... chematics/
by Rasputin
Sat Mar 07, 2020 1:08 am
Forum: HELP!
Topic: Ensoniq EPS-16+ Repair (stuck in test mode)
Replies: 10
Views: 548

Re: Ensoniq EPS-16+ Repair (stuck in test mode)

belzrebuth wrote:
Fri Mar 06, 2020 11:15 pm
I zoomed a bit on the pin11 and I can see faint serial data output periodically..But I'm not sure for the 1.38V DC..I think it should be higher.
I agree. I don't think that is proper behavior. I would say there is a good chance that replacing the DUART is the solution or at least a key part of it.
by Rasputin
Fri Mar 06, 2020 6:34 pm
Forum: HELP!
Topic: Ensoniq EPS-16+ Repair (stuck in test mode)
Replies: 10
Views: 548

Re: Ensoniq EPS-16+ Repair (stuck in test mode)

I'm concerned about that CS pin on the UART chip since it's coming from the custom 5700 ensoniq chip directly and it's mostly stuck high. Don't make the mistake of thinking that I know everything there is to know about the EPS, VFX, or anything else. Some or all of my musings could be erroneous. It...
by Rasputin
Fri Mar 06, 2020 3:13 am
Forum: HELP!
Topic: Ensoniq EPS-16+ Repair (stuck in test mode)
Replies: 10
Views: 548

Re: Ensoniq EPS-16+ Repair (stuck in test mode)

The faulty EPS16+ is stuck on test mode when booting up. Sadly I don't have the schematics for the machine only the service manual. One thing that's suspicious is that the UART chip (MC68681P) is maybe preventing connections. For starters, get the EPS16 schematics: http://zine.r-massive.com/ensoniq...
by Rasputin
Tue Feb 25, 2020 7:41 pm
Forum: General Synthesizers
Topic: Casio CZ-5000 sequencer tapes convert to MIDI files?
Replies: 4
Views: 981

Re: Casio CZ-5000 sequencer tapes convert to MIDI files?

Feel free to PM me your info and files. I can take a gander.
by Rasputin
Tue Feb 25, 2020 7:19 pm
Forum: Samplers
Topic: Ensoniq EPS system disk needed.
Replies: 8
Views: 1462

Re: Ensoniq EPS system disk needed.

It's as if the sample RAM is reset, all sounds reduced at once to a faint click, eventually followed by total silence. I do have a PS Systems 4X Memory Expander , unfortunately uninstalling it did not resolve the issue. About part number: Ensoniq service manuals do not have schematics or part numbe...
by Rasputin
Thu Feb 20, 2020 11:47 pm
Forum: General Synthesizers
Topic: Casio CZ-5000 sequencer tapes convert to MIDI files?
Replies: 4
Views: 981

Re: Casio CZ-5000 sequencer tapes convert to MIDI files?

madtheory wrote:
Thu Feb 20, 2020 3:56 pm
Any thoughts on this? It would be pretty cool to just load in the WAVs of tapes and get a MIDI file.
Is there an abundance of these WAVs somewhere?
by Rasputin
Wed Feb 19, 2020 8:30 pm
Forum: Samplers
Topic: Ensoniq EPS system disk needed.
Replies: 8
Views: 1462

Re: Ensoniq EPS system disk needed.

Also curious to ask, this EPS has an issue where the samples randomly drop out of RAM after a short time. Suspecting the ICs are going, and curious where you found working replacements? All of the sample data drops out of RAM at once? Or just parts of samples? Do you have a memory expander or just ...
by Rasputin
Tue Jan 21, 2020 3:12 pm
Forum: HELP!
Topic: Microkorg Dead Keys?
Replies: 2
Views: 609

Re: Microkorg Dead Keys?

The keys that do not work are C#3, D3 and D#3. I admit I don't fully understand the theory behind how these switches work: why does break have two contact pads, one on each side of the make contact pad? And why are the switches two-fold (make and break) in the first place? The Microkorg checks the ...
by Rasputin
Wed Jan 15, 2020 7:40 pm
Forum: HELP!
Topic: Service Manuals and Schematics!
Replies: 103
Views: 155964

Re: Service Manuals and Schematics!

Casiotone CT-6000 (MX-71) Service Manual
https://mega.nz/#!hNVFAYaZ!JCVOSL7Y4hh8 ... ffxbGLBdos

And here is a repost because Yekuku's previous link has now expired.

Korg Radias KB Service Manual
https://mega.nz/#!xUMHnAhY!tZPZMyQWqkDV ... qpzwrzzu74
by Rasputin
Tue Jan 14, 2020 10:34 pm
Forum: General Synthesizers
Topic: Ensoniq EPS - disk not formated issue
Replies: 5
Views: 1137

Re: Ensoniq EPS - disk not formated issue

I too am having this issue & am using a genuine ensoniq disk. Guessing it must be the drive, yet what could be wrong with it? Just because it's a genuine disk doesn't mean it still works, especially if it's been in storage and possibly exposed to mold. It could also easily be the drive. Try cleanin...
by Rasputin
Fri Jan 10, 2020 7:20 pm
Forum: Samplers
Topic: What software is used to write the EPS249OS.hfe image to a floppy?
Replies: 13
Views: 2126

Re: What software is used to write the EPS249OS.hfe image to a floppy?

Does it make a difference considering the EPS is 720kb? I would say no, as the EPS FDC supports both densities, but not sure.... Get the cheapest Gotek possible which is the 1.44MB version. The density thing doesn't matter because you'll have to put FlashFloppy firmware onto it anyway or else it wi...