Search found 8 matches

by emberdark
Sat Apr 14, 2007 4:25 am
Forum: Korg MS2000 & microKorg
Topic: MICROKORG WONKY KEYS
Replies: 7
Views: 6240

On its best day the microKORG keyboard is not an example of close-fitting precision and tight tolerances, but yours definitely ain't normal. If it were me I'd probably go inside and take a look. Honestly, I've not had the keyboard assembly apart, but the assembly itself unplugs from the main board ...
by emberdark
Sun Mar 25, 2007 7:27 am
Forum: Korg MS2000 & microKorg
Topic: Can't seem to get a MicroKorg part
Replies: 32
Views: 36906

Heh - I know huge throng of probably one or two people have been waiting with bated breath, so here is a pic of my microKORG's newly installed CPU: <img src="http://images.andale.com/f2/130/124/14268088/2007/3/24/mkorg_nu_cpu.jpg" width="400" height="277"> This repair along with the replaced power ...
by emberdark
Tue Mar 13, 2007 4:59 am
Forum: Korg MS2000 & microKorg
Topic: Can't seem to get a MicroKorg part
Replies: 32
Views: 36906

Whoops! Looks like an RoHS version *is* in stock. Just gotta check data sheets for pin4pin compatibility. Geez, I'm getting dumber every minute. Thanks all!
by emberdark
Tue Mar 13, 2007 4:49 am
Forum: Korg MS2000 & microKorg
Topic: Can't seem to get a MicroKorg part
Replies: 32
Views: 36906

Yep, that's the part. I never thought to check Digi-Key. But it is not in stock and the estimated ship date is July 2nd. I kinda wanted the widdle chip before then. Oh and here are the component values for the switching regulator circuit. The number on the end is the Korg part number, in case you ...
by emberdark
Tue Mar 13, 2007 1:51 am
Forum: Korg MS2000 & microKorg
Topic: Can't seem to get a MicroKorg part
Replies: 32
Views: 36906

Yes it is a ROMless version, and Korg does indeed store data on a separate Flash RAM chip. But danged if I can find the silly processor chip anywhere else, at least in quantities of one or two.

And I want one now, dad-gum-it.
by emberdark
Tue Mar 13, 2007 1:32 am
Forum: Korg MS2000 & microKorg
Topic: Can't seem to get a MicroKorg part
Replies: 32
Views: 36906

C9 is an 'optional' - it is not installed. C107 is a 1000uF 16v electrolytic. When no 3.3v power is getting to the digital circuitry, you get that Audio light routine when you turn the unit on. When 3.3v power is restored, often, as with mine, the machine springs to life and you do a little happy ...
by emberdark
Mon Mar 12, 2007 9:18 pm
Forum: Korg MS2000 & microKorg
Topic: Can't seem to get a MicroKorg part
Replies: 32
Views: 36906

Thanks. PartsisParts is where I've got the part backordered. They seem like really good people, but even they can't get a part from Korg if Korg claims it is out of stock. And my suspicion is it is never in stock. The 3.3 switching regulator is IC5. Its associated mosfet is F1. And the 3.3v fuse is ...
by emberdark
Sun Mar 11, 2007 8:50 am
Forum: Korg MS2000 & microKorg
Topic: Can't seem to get a MicroKorg part
Replies: 32
Views: 36906

Can't seem to get a MicroKorg part

After my MicroKorg stopped working, I finally tracked the difficulty to the 3.3 volt switching regulator circuit and the fuse. Unfortunately, when those components go, there is often damage done to the CPU. So it was in my case. So I got new switching regulator parts from Korg. Very quick. Very easy ...

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