Search found 30 matches

by psygoat
Sun Dec 23, 2012 8:29 pm
Forum: HELP!
Topic: Crumar DS2 problem (clock noise?)
Replies: 9
Views: 2715

Re: Crumar DS2 problem (clock noise?)

Hi Rhino.

Thank you for your reply.
I can't tell you if it's a new problem or not, because the thing was totally dead when it was brought to me.
Decoupling the power line seems like a plan - there isn't any smoothing on that board at all. I'll give that a go and let you know how I get on.
Ta
by psygoat
Sun Dec 23, 2012 3:33 pm
Forum: HELP!
Topic: Crumar DS2 problem (clock noise?)
Replies: 9
Views: 2715

Crumar DS2 problem (clock noise?)

Hi. I have a Crumar DS2 with what may or may not be a problem with the DCO - I can't say whether this is a fault or simply down to the design, but it certainly sounds wrong to me. I don't have anything to compare it with so if anyone has one and can check there's against my description, that would b...
by psygoat
Tue Apr 06, 2010 5:15 pm
Forum: HELP!
Topic: POLYSIX ARPEGGIATOR
Replies: 19
Views: 1998

Re: POLYSIX ARPEGGIATOR

Hi.

I would suspect the pot, certainly. Pots, switches, dry joints and sockets are more likely to cause problems on old units than almost anything else. The fact that there is a random element to the symptom suggests a loose connection / noise of some sort.
by psygoat
Sun Dec 07, 2008 3:37 pm
Forum: Gear Services & Other Goods
Topic: Synth Technicians and Repairs
Replies: 157
Views: 208741

Re: Synth Technicians and Repairs

Repair & Service to all kinds of synths. Repair to all types of audio equipment... amps, valve or solid state, FX etc etc Guaranteed work by qualified engineer. I have over 10 years experience and repair equipment for some of London's premier vintage music shops. Based in South London, UK Please ema...
by psygoat
Tue Aug 12, 2008 3:09 pm
Forum: HELP!
Topic: JWires
Replies: 0
Views: 181

JWires

Hi.

Does anyone know where I can get replacement j wires for vintage keyboards?

Also does anyone have any ideas for sourcing rubber bushes?

I'm working on a micromoog at the moment, however I'm having to do this sort of stuff more and more these days.

Pref UK.
by psygoat
Tue Nov 13, 2007 11:29 pm
Forum: HELP!
Topic: Korg Polysix battery
Replies: 8
Views: 940

Analog Freak wrote: You might want to check out this web page if you haven't seen it already: http://www.oldcrows.net/~oldcrow/synth/ ... index.html
Seconded. I did a polysix using the advice on this page.
by psygoat
Sun Nov 04, 2007 9:01 pm
Forum: HELP!
Topic: Prophet 5 -15v voltage rail is shorting...
Replies: 8
Views: 760

Are you sure you have the capacitor the right way round? Tantalum capacitors are polarised, like electrolytics. Use an electrolytic instead anyway.
by psygoat
Wed Oct 31, 2007 11:19 am
Forum: HELP!
Topic: Roland TB-303 RAM chips
Replies: 1
Views: 427

Don't take the chips out. If you want to clear the data from the RAM chips then just take the batteries out. You will find that the memory just fills with random stuff when you switch the unit back on, anyway. I would certainly try changing the batteries as a first step.
by psygoat
Tue Oct 30, 2007 9:35 am
Forum: HELP!
Topic: I think I just broke my RE 501
Replies: 4
Views: 440

Re: delay

manufracture wrote:Will i need to open the machine to check it.
Im gonna go to town tonight to get a step down converter
Yes.

You might be lucky. I have seen bits of japanese
roland kit plugged into 230v and it has just blown the fuses.
by psygoat
Wed Oct 24, 2007 1:42 pm
Forum: HELP!
Topic: Cleaning (juno-60)
Replies: 7
Views: 1434

There is no point cleaning it unless something is not working properly.
If you have no experience in this area then don't bother unless you really have to.
by psygoat
Tue Oct 02, 2007 10:43 am
Forum: HELP!
Topic: Replacement Power Supply PLEASE HELP!!!!
Replies: 4
Views: 1174

You could even try ringing up alesis.

There power supplies are a bit of a rip off though considering they're only a transformer.

Handy hint: alesis sometimes uses wierd plugs, if your PSU breaks, take the plug off, it could come in handy later.
by psygoat
Fri Sep 28, 2007 4:42 pm
Forum: HELP!
Topic: problems with tuning osc on Korg Mono/Poly
Replies: 14
Views: 2511

If you can't scale it by the method posted then the oscillator is faulty and no amount of tweaking is going to sort it out.

It's quite a straightforward procedure. A bit fiddly, but OK.
by psygoat
Fri Sep 28, 2007 3:53 pm
Forum: HELP!
Topic: Juno 6 transformer: how hot is too hot?
Replies: 3
Views: 529

double post thingy.
by psygoat
Fri Sep 28, 2007 3:45 pm
Forum: HELP!
Topic: Juno 6 transformer: how hot is too hot?
Replies: 3
Views: 529

Thanks for that. I would suspect an unbalanced load. However as everything works (!!!) the source of the problem is going to be a little difficult to find !

Watch this space !!
by psygoat
Fri Sep 28, 2007 2:52 pm
Forum: HELP!
Topic: Juno 6 transformer: how hot is too hot?
Replies: 3
Views: 529

Juno 6 transformer: how hot is too hot?

Hi Folks. My first post !! I am currently working on a Juno 6 which had a failed power transformer. It was a 100v model and as I live in the UK I thought it would be a good idea to convert it to run on 230V. This involves little more than replacing the original transformer with an 18-0-18v and a 9v,...