Michael,
Unfortunately, I stopped working on old damaged boards a couple of years ago
when the new clone boards became available. The old boards just seem to be a
never-ending black hole of problems that I don't have time to deal with and
I was never really happy with the end result and neither were some of my
customers. I agreed to look at Mike's board because it was a new clone board
and should not really have any problems and I thought it would be a good way
for folks in the group to learn what to watch out for when building a new
board.
If the damage on your old board is not too severe, you can probably get it
back into reasonable shape with a multimeter and a soldering iron. Describe
the problem, post a picture, and I'm sure the whole group will assist where
they can.
Don B.
_____
From:
PolySix@yahoogroups.com [mailto:
PolySix@yahoogroups.com] On Behalf Of
michael
Sent: Thursday, October 13, 2011 4:37 PM
To:
PolySix@yahoogroups.comSubject: Re: [PolySix] Don Backshall is a great guy!!
Mike,
I appreciate the referral. I just messaged him to see if I could get him to
accept some money to fix my polysix!!
Thanks,
Michael
From: Mike <
mborish_2000@yahoo.com <mailto:mborish_2000%40yahoo.com> >
Reply-To: <
PolySix@yahoogroups.com <mailto:PolySix%40yahoogroups.com> >
Date: Thu, 13 Oct 2011 18:04:22 -0000
To: <
PolySix@yahoogroups.com <mailto:PolySix%40yahoogroups.com> >
Subject: [PolySix] Don Backshall is a great guy!!
Don Backshall solved all of my PolySix issues and did it for basically a
handshake. Furthermore, he mailed my KLM-367 board back to me in good faith
before my PayPal payment even cleared!!! I sent him as much extra money as
I could because he really deserved it. Here's the correspondence bleow:
If the e-mail below can't restore your faith in blind internet transactions,
I don't know what will.
(Don's Response October 6)
Okay, the boards are on their way back. Priority Mail with delivery conf #
03103490000077720492.
Still three problems that I am aware of:
1) D/A calibration - Can't get the right lights to come on, but seems to be
in spec anyway.
2) MG leak - I'm assuming this is caused by some crud between pin 1 and 2 on
the bottom of CN06 header. I know these are a pain to remove, but I think it
needs to be done. Sounds really bad when it's cold. Gets a little better
when it warms up.
3) MG delay - Known problem with 2N3904 in Q5 position. Using the (2SC945)
transistor from the old board seems to fix this, but the pins are different.
You can compare what's connected to what between old and new boards to see
what pin goes where. One of my old boards had a 2SC2785.
$8.60 postage
$1.60 fuses
$0.15 capacitor
-----------------------
$10.35 grand total - You can send it to this Paypal acct
backshall1@bellsouth.net <mailto:backshall1%40bellsouth.net>
<mailto:backshall1%40bellsouth.net>
I'm pretty sure you can get this board sounding just like it should, even if
you can't get the right calibration lights to come on.
Have fun,
Don Backshall
_______________________________
(my response to him solving my problems October 05)
That's great!! It looks like I'm a decimal doofus! Ha Ha. What's the
bill? I can send you a PayPal payment today or tomorrow. I'll praise your
expertise on the Korg PolySix forum too if you're intersted.
Thanks again,
-Mike
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