SIEL DK600
2008-04-29 by Scott
I have one here in my shop. Found a bad TL084 on the main PCB and updated some power supply caps. It powers up but after i hit a couple function switches the whole panel "locks up" . Any ideas? THanks
Thread
SIEL DK600
RE: [vintagesynthrepair] SIEL DK600
2008-04-29 by Scott Nordlund
Has the NiCd battery on the CPU board leaked?
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To: vintagesynthrepair@yahoogroups.com
From: painintheamp@...m
Date: Tue, 29 Apr 2008 11:50:29 +0000
Subject: [vintagesynthrepair] SIEL DK600
I have one here in my shop.
Found a bad TL084 on the main PCB and updated some power supply caps.
It powers up but after i hit a couple function switches the whole
panel "locks up" .
Any ideas?
THanks
Make i'm yours. Create a custom banner to support your cause.
[vintagesynthrepair] Korg Mono/Poly MP-4 Tuning Issues
2008-04-29 by Brinkmann Music
I have a Korg Mono/Poly MP-4. I was able to tune each Osc on Circuit board KLM-398. However, as you ascend the keyboard up from the lowest note to highest note, the pitch drifts up about a half a step or so on all 4 Oscs. This is even on all and the same. So, playing octaves sounds a bit off. Also, noticed after repeated playing of octaves that perhaps one out of four repetitions will yield a pitch that is way off tune on just one of the osc. There is no pattern here, it is random as to which osc is out of tune and when. Lastly, some times if you play two notes together in POLY mode, and then quickly play a single note or let off the first note, you hear the note you just let off sound when you play the next single note. Like a double voice trigger. Changing release times and sustain doesn't stop this behavior. Any suggestions? I'm not a tech, but a player who is willing to get under the hood and fix these problems. TIA.
Re: [vintagesynthrepair] Korg Mono/Poly MP-4 Tuning Issues
2008-04-29 by Frank Simon
I just repaired a Korg Trident and it is doing
something similar in Synth mode when repeating playing even a single note
continuously. However mine will in pattern give an off note every eight (I
believe). Not to interfer with your posting but I will be waiting for your
responses to see if it helps me.
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----- Original Message -----From: Brinkmann MusicSent: Tuesday, April 29, 2008 2:42 PMSubject: [vintagesynthrepair] Korg Mono/Poly MP-4 Tuning IssuesI have a Korg Mono/Poly MP-4. I was able to tune each Osc on Circuit
board KLM-398. However, as you ascend the keyboard up from the
lowest note to highest note, the pitch drifts up about a half a step
or so on all 4 Oscs. This is even on all and the same. So, playing
octaves sounds a bit off.
Also, noticed after repeated playing of octaves that perhaps one out
of four repetitions will yield a pitch that is way off tune on just
one of the osc. There is no pattern here, it is random as to which
osc is out of tune and when.
Lastly, some times if you play two notes together in POLY mode, and
then quickly play a single note or let off the first note, you hear
the note you just let off sound when you play the next single note.
Like a double voice trigger. Changing release times and sustain
doesn't stop this behavior.
Any suggestions? I'm not a tech, but a player who is willing to get
under the hood and fix these problems.
TIA.