Search found 274 matches

by blueknob
Sun Apr 18, 2021 8:58 pm
Forum: HELP!
Topic: Ensoniq SD-1 32 Clipping Noise
Replies: 5
Views: 175

Re: Ensoniq SD-1 32 Clipping Noise

hmm.. :? some interesting results there! I shall have to ponder my crystal ball. Maybe wait up on swapping chips the TDA chips are sought after by Hi-Fi nuts (there's some chinese fakes too). I need to dig out some circuits to check if there are two TDA chips, one for Main and Aux outputs. I remembe...
by blueknob
Sat Apr 17, 2021 8:10 am
Forum: HELP!
Topic: Ensoniq SD-1 32 Clipping Noise
Replies: 5
Views: 175

Re: Ensoniq SD-1 32 Clipping Noise

I've now given your audio clip a listen on better speakers and can hear the "fizz" you speak of. I have RM11- DEEP-TINES setup on my SD-1 which is at hand. Mine doesn't have any fizz so we need to investigate. My suggestions are: I've turned off the FX for each of the 4 parts DEEP-TINES uses, Select...
by blueknob
Fri Apr 16, 2021 7:19 am
Forum: HELP!
Topic: Ensoniq SD-1 32 Clipping Noise
Replies: 5
Views: 175

Re: Ensoniq SD-1 32 Clipping Noise

I have a SD-1, I kinda recognise that particular patch. I've had a listen to your audio clip and on my laptop it seems ok. Tell me what patch you are using, choose one from the ROM banks 0 - 1 as then I can find the exact same sound on mine.
by blueknob
Wed Mar 31, 2021 8:49 am
Forum: General Synthesizers
Topic: Rewarding Cheapo Synths... any other gems??
Replies: 1
Views: 767

Re: Rewarding Cheapo Synths... any other gems??

Yeh they do sound nice. It's one of those things where most people need to see the word Roland or whatever on the box before they consider it worthy. I learnt a long time ago by watching other people (who had little money to spend) how they could get really interesting sounds from what many consider...
by blueknob
Sat Mar 27, 2021 7:32 am
Forum: General Synthesizers
Topic: ARP Odyssey - Signal Flow Diagram
Replies: 3
Views: 2673

Re: ARP Odyssey - Signal Flow Diagram

As a child I was looking at electronic circuit diagrams and soon learnt how the circuits worked. Circuit diagrams for televisions were good, very well conceived. I suppose that got me knowing what was the correct way to impart fine detail. So now I can look at a technical diagram and get the story i...
by blueknob
Tue Mar 16, 2021 11:13 am
Forum: HELP!
Topic: Alesis QS6 & USB/Midi link cable.
Replies: 4
Views: 1288

Re: Alesis QS6 & USB/Midi link cable.

I have a QS6.1 - it has an inbuilt RS232 if I remember correctly, it also selects between Win and Mac on a switch, there's also a setting in the setup menu. That is all separate from MIDI. I think the Mac connector was for OS9, I have tried it, it seemed ok. I decided to stay with MIDI because Sound...
by blueknob
Mon Mar 08, 2021 7:47 am
Forum: HELP!
Topic: Yamaha SY-1 expression pedal usable with CS50?
Replies: 11
Views: 2399

Re: Yamaha SY-1 expression pedal usable with CS50?

Just 2p. I've seen this arrangement on organs, an incandescent lamp shining on a LDR, it's a really nice way to do this. Usually the bulb expires. LDRs are cute, I think there's CDS cells too that do the same thing. I know with LDRs it's a matter of getting the right resistance range value. As it's ...
by blueknob
Sun Feb 28, 2021 8:44 am
Forum: General Synthesizers
Topic: Replacing a floppy in an EPS rackmount
Replies: 7
Views: 3341

Re: Replacing a floppy in an EPS rackmount

Yeh the pandemic is crazy, it's supposed to be ;) However, rise above the propaganda... get grounded...focus... :P I was a little hesitant about the Gotek thing. The r-massive guide I think was revised to accomodate.. me :lol: Meaning, made simpler. Approach the job like this, treat it as a stand al...
by blueknob
Sun Feb 28, 2021 8:20 am
Forum: HELP!
Topic: converting midi clock to MTC or vice versa/synch issues
Replies: 4
Views: 1009

Re: converting midi clock to MTC or vice versa/synch issues

I'm here as I'm looking at similar myself. I am using my Ensoniq SD-1 (which can be thought as the same as the EPS16+). From looking with MIDIox the SD-1 sends (and receives) Midi Clock and the start/stop/continue midi messages which all work correctly. I have recently found a modern hardware sequen...
by blueknob
Mon Feb 15, 2021 7:58 am
Forum: HELP!
Topic: Roland D50 Drifting Out Of Tune
Replies: 2
Views: 1419

Re: Roland D50 Drifting Out Of Tune

Some time ago I got fooled by something similar. It turned out to be the pitch wheel pot was showing it age.
by blueknob
Sat Jan 02, 2021 1:03 pm
Forum: HELP!
Topic: SGI on bus
Replies: 3
Views: 2683

Re: SGI on bus

Thanks Mr Y, that makes sense. My brain is programmed, when I see xGI I think in terms of computer graphics card. Although this time I went for "Interface" and that was the puzzle... Graphics Interface?? I suppose now, do I want to hunt down a SGI computer! I have the Mac IIfx OS7/SCSI/Alchemy optio...
by blueknob
Sat Jan 02, 2021 9:17 am
Forum: HELP!
Topic: SGI on bus
Replies: 3
Views: 2683

SGI on bus

"SGI on bus" is a setting on my E4K 3.0b - I can't find any reference in the E4K manual or the E4 eos4.7 manual as to what that is. Anyone got any ideas? I know it refers to some device that can be attached to the scsi bus like the Mac on scsi addr 7. It's not critcal, just a geeky need to know ever...
by blueknob
Fri Dec 25, 2020 4:59 pm
Forum: General Synthesizers
Topic: Replacing a floppy in an EPS rackmount
Replies: 7
Views: 3341

Re: Replacing a floppy in an EPS rackmount

VSE member rasputin seems to have the knowledge on this kind of thing. I put a Gotek in a EPS16+ using the r-massive website, a few tweaks and it's something I should have done years ago. I have a feeling, use Omniflop to make an "image" and the Gotek can read those files. But I think there's a numb...
by blueknob
Fri Dec 25, 2020 4:53 pm
Forum: HELP!
Topic: Service Manuals and Schematics!
Replies: 113
Views: 227982

Re: Service Manuals and Schematics!

I studied the circuit, got to the K-Chip emu use for keyboard scanning, worked out exactly which bus line (pair - make and break) - took close look for that specific connector and noticed it was slightly skewed (not in 100% on one end) - pushed it in 1mm. So far all working now :) result.
by blueknob
Wed Dec 23, 2020 11:46 am
Forum: HELP!
Topic: Service Manuals and Schematics!
Replies: 113
Views: 227982

Re: Service Manuals and Schematics!

Thanks Mr Y - that's very good of you and sooo fast! :drinks:

Had a quick look.. hmm.. once big chip does it all, more.. hmm.. :geek: at least I now know where to look.

thanks again