Search found 408 matches

by Dr. Phibes
Sat Apr 04, 2015 2:29 am
Forum: HELP!
Topic: JX-3P saw volume / panel / bender issues
Replies: 16
Views: 3219

Re: JX-3P doesn't boot up / power supply issues?

From where I'm sitting the 2w10 is a superior replacement to the original! As long as the polarity is right it should be fine. Was the original bridge rectifier actually defective? That's what I thought too...I wonder if the different spec (the "2" before it meaning 2A instead of 1.5A) is causing t...
by Dr. Phibes
Fri Apr 03, 2015 4:53 pm
Forum: HELP!
Topic: JX-3P saw volume / panel / bender issues
Replies: 16
Views: 3219

Re: JX-3P doesn't boot up / power supply issues?

From where I'm sitting the 2w10 is a superior replacement to the original! As long as the polarity is right it should be fine. Was the original bridge rectifier actually defective?
by Dr. Phibes
Fri Apr 03, 2015 4:49 pm
Forum: Synth Shootouts
Topic: Prophet 600 vs Prophet '08
Replies: 18
Views: 11526

Re: Prophet 600 vs Prophet '08

The P600 definitely has a ballsy sound that the P08 doesn't but then there's its greater functionality yadda yadda... Sometimes I find that I just can't click with a synth despite telling myself I really should. Sounds like it's that way with you and the P08. To be honest, that was my experience wit...
by Dr. Phibes
Fri Apr 03, 2015 4:35 pm
Forum: General Synthesizers
Topic: how to vintage your synth
Replies: 46
Views: 10320

Re: how to vintage your synth

Still ended up better than some of my repair jobs.
by Dr. Phibes
Wed Apr 01, 2015 1:48 am
Forum: HELP!
Topic: JX-3P saw volume / panel / bender issues
Replies: 16
Views: 3219

Re: JX-3P doesn't boot up / power supply issues?

Oh bollocks, it's never the easy option. Sorry for getting your hopes up. Could well be something shorted elsewhere... Have you checked the big electrolytics to make sure none are showing a dead short? You can try a simple diode test of the bridge rectifier but I find they're usually pretty rugged. ...
by Dr. Phibes
Sun Mar 29, 2015 6:49 pm
Forum: General Synthesizers
Topic: Why a juno 60 ???
Replies: 30
Views: 7441

Re: Why a juno 60 ???

It's always nice to see someone using a vintage piece. Sure it would be cooler if it was a Prophet 5, Jupiter 8, OB8, etc. but a Juno 60 isn't bad. Anybody recognize the other keyboard she is playing? I think it's a good ol' microkorg. I don't think the juno-60 got any more attention than the other...
by Dr. Phibes
Sun Mar 29, 2015 6:46 pm
Forum: HELP!
Topic: JX-3P saw volume / panel / bender issues
Replies: 16
Views: 3219

Re: JX-3P doesn't boot up / power supply issues?

Yeah it's a PSU issue then; all the digital stuff is entirely reliant on the 5V supply. The 5V & 7V supplies are separate from the +/15V supply and just uses a standard 7805 voltage regulator. Replace that and I reckon you''l be good.
by Dr. Phibes
Sun Mar 29, 2015 3:37 am
Forum: HELP!
Topic: JX-3P saw volume / panel / bender issues
Replies: 16
Views: 3219

Re: JX-3P doesn't boot up

In the manual it shows a few ways to check if the CPU, RAM and clock are functioning properly on power-up with an oscilloscope. Worth a try. Before that though check all the connectors. I had similar problem once and it was due to a faulty connection to the mother board.
by Dr. Phibes
Sun Mar 29, 2015 3:22 am
Forum: General Synthesizers
Topic: Roland JX3P and PWM
Replies: 49
Views: 25402

Re: Roland JX3P and PWM

not a synthesis tool my arse.
by Dr. Phibes
Sat Mar 28, 2015 11:29 pm
Forum: General Synthesizers
Topic: History of FM synthesis and digital synths
Replies: 11
Views: 2663

Re: History of FM synthesis and digital synths

That was really interesting. I had obviously heard about John Chowning but I had assumed he was the life-long lab type. It's cool to hear how someone who came from a decidedly non-technological background could go on to have such impact in the world of science, even if composition remained his first...
by Dr. Phibes
Sat Mar 28, 2015 11:08 pm
Forum: General Synthesizers
Topic: Shotgun Overhauls: OB-X
Replies: 4
Views: 1330

Re: Shotgun Overhauls: OB-X

I have three scopes (including a modern digital scope) but in the short time I've had my signal tracer it has proven to be incredibly useful. I've added a BNC input so I can plug a modern scope probe into it to safely hear all sorts of things such as clock circuits, tracing audio paths, noisy pots,...
by Dr. Phibes
Tue Mar 24, 2015 1:50 am
Forum: General Synthesizers
Topic: Cheap As Chips
Replies: 28
Views: 6974

Re: Cheap As Chips

I saw that Godwin on ebay. To be fair it was a bit of a heap. Upon inspection inside the slider tops were there the masking tape residue made it look bad the panel otherwise is ok, no missing parts its now getting looked at if it cant be fixed will still have parts value stripped off. Fair do's. Co...
by Dr. Phibes
Fri Mar 20, 2015 12:43 pm
Forum: General Synthesizers
Topic: Moog Sub 37
Replies: 351
Views: 98508

Re: Moog Sub 37

If I'm honest I'm not the biggest fan of modern Moog stuff but from the demonstrations I've seen I definitely like what I hear.

Not going to rush out and put my name on any waiting lists but I definitely wouldn't mind trying it sometime.
by Dr. Phibes
Fri Mar 20, 2015 11:50 am
Forum: General Synthesizers
Topic: Cheap As Chips
Replies: 28
Views: 6974

Re: Cheap As Chips

I saw that Godwin on ebay. To be fair it was a bit of a heap.