Vintage Synth Repair

Hi Keith

I certainly will.

Business is slow over here too, but I have other strings to my bow so no
problems.

I have been in the repair business since the early 50s so am supposedly
retired, but seem to do more now than ever!

Regards

Brian

-----Original Message-----
From: Keith Niver [mailto:kaniver@...]
Sent: Wednesday, November 24, 2004 12:24 PM
To: vintagesynthrepair@yahoogroups.com
Subject: RE: [vintagesynthrepair] K2000 outputs blown

Hi Brian
Cool. I met him the last time he was Vegas for the MITA convention. Say
hello to him for me. How's business over there. It's slow here in upstate
New York, at least for me. But I do a lot of teaching as well, so it
balances out. Good luck with the Kurzweil.

Keith Niver
-----Original Message-----
From: Brian Davies [mailto:briang3oyu@...]
Sent: Tuesday, November 23, 2004 8:36 AM
To: vintagesynthrepair@yahoogroups.com
Subject: RE: [vintagesynthrepair] K2000 outputs blown
Hi Keith

As a matter of interest I do all Bill Greenhill's work in the South of
England in a 50 mile radius of Lingfield!

Regards

Brian

-----Original Message-----
From: Keith Niver [mailto:kaniver@...]
Sent: Tuesday, November 23, 2004 1:01 PM
To: vintagesynthrepair@yahoogroups.com
Subject: RE: [vintagesynthrepair] K2000 outputs blown

look up Bill Greenhill on www.mitatechs.com <http://www.mitatechs.com> .
He's in the UK and an expert. Tell him Keith Niver sent you from MITA.

Keith A. Niver
Certified MITA tech
Niver's Service Corp
801 Columbia St
Hudson, NY   12534
518-828-0616, Bus
518-755-6960, Cel
kaniver@...
-----Original Message-----
From: Brian Davies [mailto:briang3oyu@...]
Sent: Tuesday, November 23, 2004 6:26 AM
To: vintagesynthrepair@yahoogroups.com
Subject: RE: [vintagesynthrepair] K2000 outputs blown
Hi Laurent

I spend much of my life repairing amps and keyboards for a shop local to
me - if you have no other offers I would willingly fit your devices for you.
I live near Lingfield in Surrey.

Regards

Brian

-----Original Message-----
From: laurent [mailto:lists@...]
Sent: Tuesday, November 23, 2004 10:43 AM
To: vintagesynthrepair@yahoogroups.com
Subject: Fwd: [vintagesynthrepair] K2000 outputs blown

Hi all,

well, I have narrowed down my search and identified and ordered the
offending
parts. It is a set of Junction FETS transistors fitted to each output (6 in
total). I have ordered a set of 10 from Farnell in the uk.
I was planning to fit these myself but since there rather small parts that
need
to be soldered and apart from replacing the backlight i've never done that
sort
of job, I was wondering if there was somenone technical enough in the uk
that
could help me? I live in west London but could travel a bit.
If not, then any advice on how to replace these transistors would be
welcome.

Thanks

Laurent

----- Forwarded message from laurent <lists@...> -----
    Date: Fri,  8 Oct 2004 09:41:22 -0700
    From: laurent <lists@...>
Reply-To: laurent <lists@...>
Subject: [vintagesynthrepair] K2000 outputs blown
      To: vintagesynthrepair@yahoogroups.com

Hello all,

I just joined this board.
I recently bought a Kurzweil K2000 and am experiencing strange problems.
This Mix outputs are very low and the Headphone outs are very high, cliping
at
medium volume.
A quick search on google revealed the following:
"This was a common problem on early K2000's. Later units had a
protection board installed (also available as a low cost upgrade for
older systems). Problem, as I recall, was that static electricity or
floating ground problems could blow the output transistors when
pluggin/unplugging cables to the unit.
There is a transistor on every output that mutes the output when you first
turn on the keyboard.  Static electricity can fry these.  If you plug in an
audio cable to the K2000, THEN plug that cable into an amp, chances are you
will short the tip of the plug to the chassis of the amp.  This will destroy
the transistor.
The remedy is to replace the transistor."

I was wondering if there was any K2K owners on this list who would be
familiar
with this issue and how to fix it.

Thanks in advance

Laurent

----- End forwarded message -----














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