Search found 143 matches

by gearfixer
Wed Nov 02, 2016 1:13 pm
Forum: HELP!
Topic: Polysix MIDI retrofit PS6-MRK manual
Replies: 5
Views: 1448

Re: Polysix MIDI retrofit PS6-MRK manual

I really could use the service/install manual for this kit!
by gearfixer
Wed Sep 21, 2016 6:58 pm
Forum: HELP!
Topic: Polysix MIDI retrofit PS6-MRK manual
Replies: 5
Views: 1448

Re: Polysix MIDI retrofit PS6-MRK manual

I just received a Polysix with this midi kit anyone have a manual and installation manual/schematic. I repaired the KLM board but still have problems.
by gearfixer
Tue Feb 16, 2016 10:22 pm
Forum: HELP!
Topic: Yamaha cp25 key noise
Replies: 0
Views: 495

Yamaha cp25 key noise

Got a CP25 that the keys click when released. Your thoughts would be a great help thanks.

I've unsoldered power to the ch1 sound generator chip and the noise is gone. Looks like it may be the problem.

Swapped them and problem is the YM722 voice chip.
by gearfixer
Sat Jan 04, 2014 7:32 pm
Forum: HELP!
Topic: Korg Micropreset M500 problems.
Replies: 2
Views: 3808

Re: Korg Micropreset M500 problems.

I had one with similar problems and it was a bad trace. It does not help that they are not protected with a coating.
by gearfixer
Tue Sep 25, 2012 9:42 pm
Forum: HELP!
Topic: Pratt-Read keyboard rebushing issue
Replies: 11
Views: 4485

Re: Pratt-Read keyboard rebushing issue

The keys of the Wave are plastic and metal as opposed to the all plastic keys of my ProOne. http://i187.photobucket.com/albums/x30/zudio/IMG_0985_zps96f3490a.jpg It reminds me of the Simpsons skit "the book of great british smiles". :lol: http://1.bp.blogspot.com/_u4A-ytR8ePM/S88M6NDTrgI/AAAAAAAABP...
by gearfixer
Fri May 04, 2012 12:54 pm
Forum: HELP!
Topic: Arp Pro Soloist issues.
Replies: 8
Views: 980

Re: Arp Pro Soloist issues.

Z9 was to clear the gate stuck open problem which also effected some of the presets. Z3 may be the one from what you have found and looking at the schematic. If that fails I would change all of the ICs on that board that you can "shotgun it" because there are so little of them. Incase you have not f...
by gearfixer
Mon Apr 16, 2012 11:41 am
Forum: HELP!
Topic: Arp Pro Soloist issues.
Replies: 8
Views: 980

Re: Arp Pro Soloist issues.

I was lucky that I had a working one to troubleshot the broken unit. Before swapping boards I did not think it was the E board that the problem.
by gearfixer
Mon Apr 16, 2012 11:26 am
Forum: HELP!
Topic: Semi-Working Arp Pro Soloist HELP!
Replies: 1
Views: 399

Re: Semi-Working Arp Pro Soloist HELP!

Recently bought a semi-working Arp Pro Soloist (black and gold. post soloist, pre DGX.) About 90% of the keys trigger in tune and track. About half of those keys have to be wiggler pretty hard and played a couple of times to trigger. Biggest thing for me is that even after leaving it on for a coupl...
by gearfixer
Mon Apr 16, 2012 3:16 am
Forum: HELP!
Topic: Arp Pro Soloist issues.
Replies: 8
Views: 980

Re: Arp Pro Soloist issues.

Fixed a DGX with this problem and it was a bad 7479 on the E board.
by gearfixer
Wed Feb 29, 2012 2:31 pm
Forum: HELP!
Topic: dead microkorg
Replies: 55
Views: 30466

Re: dead microkorg

Did it fire up?
by gearfixer
Fri Feb 24, 2012 1:20 am
Forum: HELP!
Topic: dead microkorg
Replies: 55
Views: 30466

Re: dead microkorg

man-009 wrote:synth was sent out to matt who knows his stuff! will let you know how it pans out with the repair!

I Would like to know!
The person who owned it would like to get all the setting out of it. The thing was done form the being on the road but and was part of there bands sound.
by gearfixer
Tue Feb 21, 2012 8:34 pm
Forum: General Synthesizers
Topic: TR-808 with blue step buttons 1-4?
Replies: 24
Views: 2139

Re: TR-808 with blue step buttons 1-4?

Well, duh! Of course, my handmade ones come pretty close to that sound ... but with reverb and tremolo! If you actually made a tweed circuit with reverb and tremolo, would you mind sending me the diagram?!? I also like how we are turning this thread into something that could be interpreted to be ab...