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2010-02-28 by Scott
One of the biggest problems I've come across in servicing/repairing vintage gear is : Memory Battery leakage. If your Memory Battery hasnt been changed in a number of year PLEASE get it done or it may ruin you synth for good You can send it to me for $100's of dollars of repairs OR change the battery Scott in Vermont
2010-03-03 by Keith Niver
To add to what Scott said about replacing your battery, always do a back-up of your favorite sounds. If your battery dies, they may be lost as well. If you can't find a tech near you, go to www.mitatechs.org <http://www.mitatech.org/> and search for a tech near you. Keith A Niver Certified tech in upstate New York
-----Original Message----- From: vintagesynthrepair@yahoogroups.com [mailto:vintagesynthrepair@yahoogroups.com] On Behalf Of Scott Sent: Sunday, February 28, 2010 8:39 AM To: vintagesynthrepair@yahoogroups.com Subject: [vintagesynthrepair] Pay me now or..... One of the biggest problems I've come across in servicing/repairing vintage gear is : Memory Battery leakage. If your Memory Battery hasnt been changed in a number of year PLEASE get it done or it may ruin you synth for good You can send it to me for $100's of dollars of repairs OR change the battery Scott in Vermont
2010-03-03 by Alan Probandt
Could you please describe (both for me and for all the people in the future who will be reading this sequence of postings) exactly what kind of damage that an old memory battery does to vintage synthesizers? Thank you. --- On Wed, 3/3/10, Keith Niver <kaniver@...> wrote:
From: Keith Niver <kaniver@...>
Subject: RE: [vintagesynthrepair] Pay me now or.....
To: vintagesynthrepair@yahoogroups.com
Date: Wednesday, March 3, 2010, 4:07 AM
To add to what Scott said about replacing
your battery, always do a back-up of your favorite sounds. If your battery
dies, they may be lost as well. If you can’t find a tech near you, go to www.mitatechs.org and search for a tech
near you.
Keith A
Niver
Certified tech
in upstate New York
-----Original Message-----
From:
vintagesynthrepair@yahoogroups.com [mailto:vintagesynthrepair@yahoogroups.com] On Behalf Of Scott
Sent: Sunday, February 28, 2010
8:39 AM
To:
vintagesynthrepair@yahoogroups.com
Subject: [vintagesynthrepair] Pay
me now or.....
One of the biggest
problems I've come across in servicing/repairing
vintage gear is : Memory Battery leakage.
If your Memory Battery hasnt been changed in a number of year PLEASE get it
done or it may ruin you synth for good
You can send it to me for $100's of dollars of repairs OR change the battery
Scott in Vermont2010-03-03 by Frank Simon
The battery acid will leak on your pc board and eat up the copper traces. But that is the easy part. When it chews through the thru vias that can get ugly. I speak from experience. Frank
----- Original Message -----
From: Alan Probandt
To: vintagesynthrepair@yahoogroups.com
Sent: Wednesday, March 03, 2010 9:21 AM
Subject: RE: [vintagesynthrepair] Pay me now or.....
Could you please describe (both for me and for all the people in the future who will be reading this sequence of postings) exactly what kind of damage that an old memory battery does to vintage synthesizers? Thank you.
--- On Wed, 3/3/10, Keith Niver <kaniver@mhcable.com> wrote:
From: Keith Niver <kaniver@...>
Subject: RE: [vintagesynthrepair] Pay me now or.....
To: vintagesynthrepair@yahoogroups.com
Date: Wednesday, March 3, 2010, 4:07 AM
To add to what Scott said about replacing your battery, always do a back-up of your favorite sounds. If your battery dies, they may be lost as well. If you can’t find a tech near you, go to www.mitatechs.org and search for a tech near you.
Keith A Niver
Certified tech in upstate New York
-----Original Message-----
From: vintagesynthrepair@yahoogroups.com [mailto:vintagesynthrepair@yahoogroups.com] On Behalf Of Scott
Sent: Sunday, February 28, 2010 8:39 AM
To: vintagesynthrepair@yahoogroups.com
Subject: [vintagesynthrepair] Pay me now or.....
One of the biggest problems I've come across in servicing/repairing
vintage gear is : Memory Battery leakage.
If your Memory Battery hasnt been changed in a number of year PLEASE get it done or it may ruin you synth for good
You can send it to me for $100's of dollars of repairs OR change the battery
Scott in Vermont2010-03-04 by Rish
We have batteries and holders for about 1500 different instruments at www.Route66studios.com if anyone is interested. Richard
----- Original Message -----
From: Frank Simon
To: vintagesynthrepair@yahoogroups.com
Sent: Wednesday, March 03, 2010 4:30 PM
Subject: Re: [vintagesynthrepair] Pay me now or.....
The battery acid will leak on your pc board and eat up the copper traces. But that is the easy part. When it chews through the thru vias that can get ugly. I speak from experience.
Frank
----- Original Message -----
From: Alan Probandt
To: vintagesynthrepair@yahoogroups.com
Sent: Wednesday, March 03, 2010 9:21 AM
Subject: RE: [vintagesynthrepair] Pay me now or.....
Could you please describe (both for me and for all the people in the future who will be reading this sequence of postings) exactly what kind of damage that an old memory battery does to vintage synthesizers? Thank you.
--- On Wed, 3/3/10, Keith Niver <kaniver@...> wrote:
From: Keith Niver <kaniver@...>
Subject: RE: [vintagesynthrepair] Pay me now or.....
To: vintagesynthrepair@yahoogroups.com
Date: Wednesday, March 3, 2010, 4:07 AM
To add to what Scott said about replacing your battery, always do a back-up of your favorite sounds. If your battery dies, they may be lost as well. If you can’t find a tech near you, go to www.mitatechs.org and search for a tech near you.
Keith A Niver
Certified tech in upstate New York
-----Original Message-----
From: vintagesynthrepair@yahoogroups.com [mailto:vintagesynthrepair@yahoogroups.com] On Behalf Of Scott
Sent: Sunday, February 28, 2010 8:39 AM
To: vintagesynthrepair@yahoogroups.com
Subject: [vintagesynthrepair] Pay me now or.....
One of the biggest problems I've come across in servicing/repairing
vintage gear is : Memory Battery leakage.
If your Memory Battery hasnt been changed in a number of year PLEASE get it done or it may ruin you synth for good
You can send it to me for $100's of dollars of repairs OR change the battery
Scott in Vermont2010-03-04 by Scott
--- In vintagesynthrepair@yahoogroups.com, Alan Probandt <alan_probandt@...> wrote: > > Could you please describe (both for me and for all the people in the future who will be reading this sequence of postings) exactly what kind of damage that an old memory battery does to vintage synthesizers? Thank you. > > --- On Wed, 3/3/10, Keith Niver <kaniver@...> wrote: > > The chemicals from inside the memory battery( went it goes bad) flow out onto the printed circuit board and damage copper traces ( signal and power supply lines). It also creeps into thru-hole vias ( which carry signals from one side of the pc board to the other. Some places might not be so evident.I'm finding this to be the case right now. I have (2) Korg Poly 6's in the shop with the leakage problem. I figure 200-250 to repair leakage damage Scott in Vermont ASEE , 1981
> > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > To add to what Scott said about replacing > your battery, always do a back-up of your favorite sounds. If your battery > dies, they may be lost as well. If you canât find a tech near you, go to www.mitatechs.org and search for a tech > near you. > > Â > > > > Keith A > Niver > > Certified tech > in upstate New York > > > > Â > > -----Original Message----- > > From: > vintagesynthrepair@yahoogroups.com [mailto:vintagesynthrepair@yahoogroups.com] On Behalf Of Scott > > Sent: Sunday, February 28, 2010 > 8:39 AM > > To: > vintagesynthrepair@yahoogroups.com > > Subject: [vintagesynthrepair] Pay > me now or..... > > Â > > Â > > > > > > > > > > One of the biggest > problems I've come across in servicing/repairing > > vintage gear is : Memory Battery leakage. > > > > If your Memory Battery hasnt been changed in a number of year PLEASE get it > done or it may ruin you synth for good > > > > You can send it to me for $100's of dollars of repairs OR change the battery > > > > Scott in Vermont >
2010-03-04 by Scott Nordlund
> Could you please describe (both for me and for all the people in the future who will be reading this sequence of postings) exactly what kind of damage that an old memory battery does to vintage synthesizers? Thank you. Specifically the problem involves rechargeable NiCd batteries. The more common lithium batteries shouldn't cause any trouble (not that I've ever seen, anyway). Of course ordinary AA batteries can also leak and ruin your day, but these aren't usually mounted on circuit boards. A few things that use these: Korg Polysix, Poly 61 and Trident, Siel DK 600, DK 700 and Expander, Roland CR-78, Kawai SX210 and SX240, PPG Wave series, Wersi, as well as lots of other old electronics. Leakage in pinball machines seems to be particularly insidious, I guess because they can sit in storage for a couple decades while the battery works its magic. Over time the (NaOH or KOH?) electrolyte leaks out, possibly encouraged by the recharging circuit. Component leads corrode, circuit board traces turn black, solder turns to a powdery gray substance. The damage can spread to a quite impressive area, though not all of it will need to be repaired. The solder is especially a pain since it won't melt or allow new solder to adhere. It can be very difficult to remove without actually drilling out all the vias and holes. _________________________________________________________________ Your E-mail and More On-the-Go. Get Windows Live Hotmail Free. http://clk.atdmt.com/GBL/go/201469229/direct/01/
2010-03-04 by Brian
This problem can become even more of a problem if the electrolyte manages to get down into the plated through holes as it can then get into the intermediate layers where it becomes virtually impossible to repair. It may not be realized that these boards are often multi layer, not just simply with track on both sides of the visible board but may be 4 or even 6 layers each layer comprising track on both sides. Most computers these days are multi layers systems with 6 or more layers. Needless to say if electrolyte gets down into the intermediate layers you cannot get in there to clean it off. In the past I've spent several hours cleaning up a board, replacing dissolved track and putting in new components only find that the board still fails to work probably due to inter-layer damage. Regards Brian G3OYU
From: vintagesynthrepair@yahoogroups.com [mailto:vintagesynthrepair@yahoogroups.com] On Behalf Of Scott Nordlund Sent: 04 March 2010 2:19 PM To: vintagesynthrepair@yahoogroups.com Subject: [vintagesynthrepair] Re: Pay me now or..... > Could you please describe (both for me and for all the people in the future who will be reading this sequence of postings) exactly what kind of damage that an old memory battery does to vintage synthesizers? Thank you. Specifically the problem involves rechargeable NiCd batteries. The more common lithium batteries shouldn't cause any trouble (not that I've ever seen, anyway). Of course ordinary AA batteries can also leak and ruin your day, but these aren't usually mounted on circuit boards. A few things that use these: Korg Polysix, Poly 61 and Trident, Siel DK 600, DK 700 and Expander, Roland CR-78, Kawai SX210 and SX240, PPG Wave series, Wersi, as well as lots of other old electronics. Leakage in pinball machines seems to be particularly insidious, I guess because they can sit in storage for a couple decades while the battery works its magic. Over time the (NaOH or KOH?) electrolyte leaks out, possibly encouraged by the recharging circuit. Component leads corrode, circuit board traces turn black, solder turns to a powdery gray substance. The damage can spread to a quite impressive area, though not all of it will need to be repaired. The solder is especially a pain since it won't melt or allow new solder to adhere. It can be very difficult to remove without actually drilling out all the vias and holes. __________________________________________________________ Your E-mail and More On-the-Go. Get Windows Live Hotmail Free. http://clk.atdmt.com/GBL/go/201469229/direct/01/
2010-03-04 by Paul Cunningham
I'm in the middle of repairing a badly damaged poly-61.... i got the old battery off the board, but there are many surrounding components which look corroded and a few to the point they are damaged. good to know about the solder not melting problem as i anticipate what to do next. the insideous thing is that the corrosion works its was down the traces and components, and in some cases spreads a lot further than just the battery area. the analog board is pristine though, and i figure this could be my next DIY project... -pc
On Mar 4, 2010, at 9:19 AM, Scott Nordlund wrote: >> Could you please describe (both for me and for all the people in >> the future who will be reading this sequence of postings) exactly >> what kind of damage that an old memory battery does to vintage >> synthesizers? Thank you. > > Specifically the problem involves rechargeable NiCd batteries. The > more common lithium batteries shouldn't cause any trouble (not that > I've ever seen, anyway). Of course ordinary AA batteries can also > leak and ruin your day, but these aren't usually mounted on circuit > boards. > > A few things that use these: Korg Polysix, Poly 61 and Trident, > Siel DK 600, DK 700 and Expander, Roland CR-78, Kawai SX210 and > SX240, PPG Wave series, Wersi, as well as lots of other old > electronics. Leakage in pinball machines seems to be particularly > insidious, I guess because they can sit in storage for a couple > decades while the battery works its magic. > > Over time the (NaOH or KOH?) electrolyte leaks out, possibly > encouraged by the recharging circuit. Component leads corrode, > circuit board traces turn black, solder turns to a powdery gray > substance. The damage can spread to a quite impressive area, > though not all of it will need to be repaired. The solder is > especially a pain since it won't melt or allow new solder to > adhere. It can be very difficult to remove without actually > drilling out all the vias and holes.
2010-03-05 by GB
I have (2) Korg Poly 6's in the shop with the leakage problem.
I figure 200-250 to repair leakage damage
Scott in Vermont ASEE , 1981.
2010-03-05 by Arto Koivisto
> look corroded and a few to the point they are damaged. good to know > about the solder not melting problem as i anticipate what to do next. I've used careful scraping, solder (and possibly soldering flux) and q-tips soaked in rubbing alcohol (isopropanol) to clean up the leakages and corroded spots. Bits of glass fiber circuit boards are good for scraping/rubbing away most obvious bits of dirt. There's some kind of a resin in these boards that gently rubs of the corrosion as well. Once the surface is somewhat clean, tthe remaining dirt can be burned away with the help of the flux in the solder. Then, excess solder residues can be cleaned with solder wick and flux residues with isopropanol (f.ex. if your solder isn't of no-clean type). If you want to see an example of what this process looks like, I have a post about it on my blog: http://wp.me/pJHQM-et Got one Polysix battery case waiting to be documented to the blog as well, but that's way further down the timeline. .Arto. -- http://holyfeather.com/outerspacealliance/ http://kewlers.scene.org/bitchard/ http://amazingdiy.wordpress.com/
2010-03-05 by Paul Cunningham
Thanks awesome advice. Thanks for the link too! -pc
On Mar 5, 2010, at 4:09 AM, Arto Koivisto wrote: > Bits of glass fiber circuit boards are good for scraping/rubbing away > most obvious bits of dirt. There's some kind of a resin in these > boards > that gently rubs of the corrosion as well. Once the surface is > somewhat > clean, tthe remaining dirt can be burned away with the help of the > flux > in the solder. Then, excess solder residues can be cleaned with solder > wick and flux residues with isopropanol (f.ex. if your solder isn't of > no-clean type).
2010-03-06 by Samuel Adams
Would a Yamaha AN1x have such a battery? A Sequential Circuits synthesizer "700 Preset-Programmer"? A Casio MZ-2000? Yamaha PSR 730? I have these in safe storage at the moment and wouldn't want them damaged from leaking batteries. THANX
-----Original Message----- From: vintagesynthrepair@yahoogroups.com [mailto:vintagesynthrepair@yahoogroups.com] On Behalf Of Brian Sent: Thursday, March 04, 2010 12:34 PM To: vintagesynthrepair@yahoogroups.com Subject: RE: [vintagesynthrepair] Re: Pay me now or..... This problem can become even more of a problem if the electrolyte manages to get down into the plated through holes as it can then get into the intermediate layers where it becomes virtually impossible to repair. It may not be realized that these boards are often multi layer, not just simply with track on both sides of the visible board but may be 4 or even 6 layers each layer comprising track on both sides. Most computers these days are multi layers systems with 6 or more layers. Needless to say if electrolyte gets down into the intermediate layers you cannot get in there to clean it off. In the past I've spent several hours cleaning up a board, replacing dissolved track and putting in new components only find that the board still fails to work probably due to inter-layer damage. Regards Brian G3OYU From: vintagesynthrepair@yahoogroups.com [mailto:vintagesynthrepair@yahoogroups.com] On Behalf Of Scott Nordlund Sent: 04 March 2010 2:19 PM To: vintagesynthrepair@yahoogroups.com Subject: [vintagesynthrepair] Re: Pay me now or..... > Could you please describe (both for me and for all the people in the future who will be reading this sequence of postings) exactly what kind of damage that an old memory battery does to vintage synthesizers? Thank you. Specifically the problem involves rechargeable NiCd batteries. The more common lithium batteries shouldn't cause any trouble (not that I've ever seen, anyway). Of course ordinary AA batteries can also leak and ruin your day, but these aren't usually mounted on circuit boards. A few things that use these: Korg Polysix, Poly 61 and Trident, Siel DK 600, DK 700 and Expander, Roland CR-78, Kawai SX210 and SX240, PPG Wave series, Wersi, as well as lots of other old electronics. Leakage in pinball machines seems to be particularly insidious, I guess because they can sit in storage for a couple decades while the battery works its magic. Over time the (NaOH or KOH?) electrolyte leaks out, possibly encouraged by the recharging circuit. Component leads corrode, circuit board traces turn black, solder turns to a powdery gray substance. The damage can spread to a quite impressive area, though not all of it will need to be repaired. The solder is especially a pain since it won't melt or allow new solder to adhere. It can be very difficult to remove without actually drilling out all the vias and holes. __________________________________________________________ Your E-mail and More On-the-Go. Get Windows Live Hotmail Free. http://clk.atdmt. <http://clk.atdmt.com/GBL/go/201469229/direct/01/> com/GBL/go/201469229/direct/01/
2010-03-06 by Brian
Any equipment with a NiCad battery or alkaline one, are suspect. If they have such batteries and they are in storage for any length of time removing them is the only safe option. Although NmHi should be OK but I have experienced one that leaked, but this may just be a rogue one. Regards Brian G3OYU
From: vintagesynthrepair@yahoogroups.com
[mailto:vintagesynthrepair@yahoogroups.com] On Behalf Of Samuel Adams
Sent: 06 March 2010 1:40 AM
To: vintagesynthrepair@yahoogroups.com
Subject: [vintagesynthrepair] Pay me now or.....
Would a Yamaha AN1x have such a battery? A Sequential Circuits synthesizer
"700 Preset-Programmer"? A Casio MZ-2000? Yamaha PSR 730?
I have these in safe storage at the moment and wouldn't want them damaged
from leaking batteries.
THANX
-----Original Message-----
From: vintagesynthrepair@yahoogroups.com
[mailto:vintagesynthrepair@yahoogroups.com] On Behalf Of Brian
Sent: Thursday, March 04, 2010 12:34 PM
To: vintagesynthrepair@yahoogroups.com
Subject: RE: [vintagesynthrepair] Re: Pay me now or.....
This problem can become even more of a problem if the electrolyte manages to
get down into the plated through holes as it can then get into the
intermediate layers where it becomes virtually impossible to repair. It may
not be realized that these boards are often multi layer, not just simply
with track on both sides of the visible board but may be 4 or even 6 layers
each layer comprising track on both sides. Most computers these days are
multi layers systems with 6 or more layers.
Needless to say if electrolyte gets down into the intermediate layers you
cannot get in there to clean it off. In the past I've spent several hours
cleaning up a board, replacing dissolved track and putting in new components
only find that the board still fails to work probably due to inter-layer
damage.
Regards
Brian G3OYU
From: vintagesynthrepair@yahoogroups.com
[mailto:vintagesynthrepair@yahoogroups.com] On Behalf Of Scott Nordlund
Sent: 04 March 2010 2:19 PM
To: vintagesynthrepair@yahoogroups.com
Subject: [vintagesynthrepair] Re: Pay me now or.....
> Could you please describe (both for me and for all the people in the
future who will be reading this sequence of postings) exactly what kind of
damage that an old memory battery does to vintage synthesizers? Thank you.
Specifically the problem involves rechargeable NiCd batteries. The more
common lithium batteries shouldn't cause any trouble (not that I've ever
seen, anyway). Of course ordinary AA batteries can also leak and ruin your
day, but these aren't usually mounted on circuit boards.
A few things that use these: Korg Polysix, Poly 61 and Trident, Siel DK 600,
DK 700 and Expander, Roland CR-78, Kawai SX210 and SX240, PPG Wave series,
Wersi, as well as lots of other old electronics. Leakage in pinball machines
seems to be particularly insidious, I guess because they can sit in storage
for a couple decades while the battery works its magic.
Over time the (NaOH or KOH?) electrolyte leaks out, possibly encouraged by
the recharging circuit. Component leads corrode, circuit board traces turn
black, solder turns to a powdery gray substance. The damage can spread to a
quite impressive area, though not all of it will need to be repaired. The
solder is especially a pain since it won't melt or allow new solder to
adhere. It can be very difficult to remove without actually drilling out all
the vias and holes.
__________________________________________________________
Your E-mail and More On-the-Go. Get Windows Live Hotmail Free.
http://clk.atdmt.com/GBL/go/201469229/direct/01/