Sunday, March 5, 2017

Quick SE MIDI Mini tuning

VCO Calibration

This was also a simple job.
The only problem with this Studio Electronics MIDI Mini was that it wasn't tracking very well, in particular in the high octaves.
I started out by calibrating the PSU, but it was already almost spot on (at around +/- 10.05V or something) but I did my best to set it to exactly +/-10.00V. 
After that I calibrated the VCOs (though I have no memory of the actual procedure today), but I haven't made any specific notes about it so I can only assume it went well and didn't take too long.

Juno-6 with trigger problems and broken switch

A Juno-6 with a couple of minor issues

So my second repair was a Roland Juno-6 that had a couple of minor issues.

Trigger heard on output

One of them was that the trigger signal connected to the trigger input (for clocking the arpeggiator) could be heard on the output.
I figured it must be some audio input modification so I opened it up to have a look.

Tuesday, December 6, 2016

Korg Trident Mk II - My first service job

Time to get started

So, like I said in my previous post, my blog here and posts elsewhere got a few people asking if I could fix stuff for them. Long story short: I registered a business and now accept service jobs reparing synthesizers and various electronic stuff. I'm not gonna bore you with repeating all that again though. This post will be about the first job: a Korg Trident Mk II.

I don't have any photos of it closed, so enjoy the guts :)
This is a long post (Seriously long! I MEAN IT!), probably partly because the repair was a bit complicated and partly because it's my first "real" post in a long time :) I'm sure I'll make them shorter and less boring soon after this one.
If you're still interested, read on...

Saturday, December 3, 2016

Excuse for not posting for over 2 years

Started Sole Proprietorship

Well, it's been a while.

If you think it's because I've been lazy, you're quite right, but not completely.
I actually registered as a sole proprietor and now have a VAT registered "business". Yay...
My blog posts and some activity on a Swedish music forum attracted some attention from people who had some stuff they needed fixed, and they asked me if I could take a look at it.
So I decided that I might as well register a business and make it right with taxes and stuff.
It's nothing big, just to keep things legal and keep my paranoid mind at ease.

I registered back in October 2014 and since then my own repairs and projects haven't been as prioritized as much as the repairs I'm doing for my clients.
I realize Oct 2014 is pretty much when I stopped posting, so .. I guess that's my excuse ;)

Sunday, August 24, 2014

ETI 4600

What have I done?
I have dragged a wounded monster back to my cave...

Behold the ETI 4600!