Yamaha CS80

Hi all.

It's been a while since I gave a status on my repair/restoration.  My
CS-80 is now 100% working!

I just tuned it this evening.  I don't know why people think it's such
a huge deal.  Admittedly, mine was pretty close to start with, but the
main tuning procedure (Tuning from
http://personal.inet.fi/private/matador/cs-80_adjustment_procedure.html)
only took about an hour.  It's so in tune it almost sounds digital :^)

I also did the power-supply adjustments.  One thing I did, that I had
read somewhere, was put a heater in the room and cranked up the
temperature to about 85F.  This is supposed to make the ambient
temperature around the voice cards closer to what it would be with the
instrument all closed up.  The tuning has always been good and solid
on this unit.  It's serial # 1646, which is one of the highest ones
I've ever seen.  It has the last version of the VCO chips, which
didn't require any temperature compensation mods.

While it's opened up, I'll go through all the other adjustment
procedures.  I've already tweaked all the switch contacts to get the
note on/off and velocity sensing even.  I even took out all the keys
and cleaned the key tops.  All aftertouch sensors are working great, too.

Oh, and after searching for months, I bought an original CS-80 stand
from a guy whose CS-80 wasn't working.  Now if I could just find the
Plexiglass music rest.  My attempt to make one didn't work out:
cutting Plexiglass (especially clear) is harder than I thought.

I hope to screw the case shut, for the last time, within a week
(unless I find a Kenton kit really cheap!).

I'll post some more pictures soon, too.

Thanks for all the help I've gotten from many people in this group!

 David

Hi David,

thanks for these comprehensive insights. Wouldn\ufffdt it be possible to upload
all these somewhere or compiling these in printed/CDR form? My tech is very
reluctant about touching my 80, and this might help him a good deal and make
him a lot more courageous...

Stephen.


"Ambition makes you look pretty ugly." (Thom Yorke/Radiohead -- "Paranoid
Android")

"Hoellenengel" -- new album by Stephen Parsick, street date October 1, 2005.

For info and audio, please check www.parsick.com

Coming soon: "oughtibridge", the new [\ufffdramp] album, recorded live in
England.

For info and audio, please visit the official [\ufffdramp] website at
www.doombient.com

WTB: "England\ufffds Hidden Reverse" by David Keenan (Coil, Current93, Nurse With
Wound, David Tibet).


----- Original Message -----

From: David Rogoff <david@...>
To: <yamahacs80@yahoogroups.com>
Sent: Monday, November 28, 2005 7:50 AM
Subject: [yamahacs80] I'm tuned!


> Hi all.
>
> It's been a while since I gave a status on my repair/restoration.  My
> CS-80 is now 100% working!
>
> I just tuned it this evening.  I don't know why people think it's such
> a huge deal.  Admittedly, mine was pretty close to start with, but the
> main tuning procedure (Tuning from
> http://personal.inet.fi/private/matador/cs-80_adjustment_procedure.html)
> only took about an hour.  It's so in tune it almost sounds digital :^)
>
> I also did the power-supply adjustments.  One thing I did, that I had
> read somewhere, was put a heater in the room and cranked up the
> temperature to about 85F.  This is supposed to make the ambient
> temperature around the voice cards closer to what it would be with the
> instrument all closed up.  The tuning has always been good and solid
> on this unit.  It's serial # 1646, which is one of the highest ones
> I've ever seen.  It has the last version of the VCO chips, which
> didn't require any temperature compensation mods.
>
> While it's opened up, I'll go through all the other adjustment
> procedures.  I've already tweaked all the switch contacts to get the
> note on/off and velocity sensing even.  I even took out all the keys
> and cleaned the key tops.  All aftertouch sensors are working great, too.
>
> Oh, and after searching for months, I bought an original CS-80 stand
> from a guy whose CS-80 wasn't working.  Now if I could just find the
> Plexiglass music rest.  My attempt to make one didn't work out:
> cutting Plexiglass (especially clear) is harder than I thought.
>
> I hope to screw the case shut, for the last time, within a week
> (unless I find a Kenton kit really cheap!).
>
> I'll post some more pictures soon, too.
>
> Thanks for all the help I've gotten from many people in this group!
>
>  David
>
>
>
>
>
>
>
> Yahoo! Groups Links
>
>
>
>
>
>

--- In yamahacs80@yahoogroups.com, "Wavecomputer360"
<wavecomputer360@g...> wrote:
>
> Hi David,
> 
> thanks for these comprehensive insights. Wouldn´t it be possible to
upload
> all these somewhere or compiling these in printed/CDR form? My tech
is very
> reluctant about touching my 80, and this might help him a good deal
and make
> him a lot more courageous...


The info on the web is very good.  Just look at Crow's www.cs80.com,
especially "CS80 Adjustment Proceedure".  The link "From the Inside"
shows how to open it up.  If you're just doing the basic tuning, all
you need do it lift the panel, lift the card cage, and hook up a tuner
to one of the audio outputs.  All the M-card trimmers are accessible
from the front edge of the boards.

As far as knowing which voice is active, I build a little LED board,
which I talked about a few months ago.  Pictures and schematic are in
Photos->CS80 Renovation->Lights.  It made the tuning a snap.  By the
way, I will probably be selling my little LED board very soon.  If
you're interested, make me a reasonable offer.

 David

Hello David

Thank you very much for your quick answer.
I wanted to know which pcb (KAS, TKC, TSB1, eg.) you choosed to start with?
Did you also overhaul the power supply and if which parts besides the cap. 
did you changed.

Greetings
Thorsten

>From: David Rogoff <david@...>
>To: Thorsten P\ufffdrschke <lars_thorsten@...>
>Subject: Re: [yamahacs80] I'm tuned!
>Date: Mon, 28 Nov 2005 19:27:08 -0800
>
>Thorsten P\ufffdrschke wrote:
>>Hello David
>>
>>Thats a great news, you did a superb job on bring your cs-80 back to new 
>>or even newer ;-).
>>
>Thanks.
>>I'm just at the beginning of the same project.
>>I allready read the tipps from oldcrow (unfortunatly he doesn't answer my 
>>emails).
>>But which board did you use for the start?
>>
>I'm not sure what you mean.
>>Did you also change the capacitator on the voice boards?
>>
>No, I didn't.  I replaced/added bypass caps on all boards with CMOS chips, 
>which I also replaced, and added sockets.
>>Did you wrap the cs-80 also in a new tolex and what are your tipps 
>>herefore?
>>
>I thought about it, but mine is not bad (b+ ?), and I didn't want to gut 
>the whole case to do the work.
>>Sorry for all of this questions but as you know this is a big project and 
>>I wanted to be preped well.
>>
>No problem.
>>I hope I can count of you if I have further question within my cs-80 
>>project.
>>
>Sure.  Just ask on in the group - you'll get answers from multiple people 
>and everyone can benefit.
>
>David

Hi Thorsten,

are you located in Germany, too?

Stephen


"Ambition makes you look pretty ugly." (Thom Yorke/Radiohead -- "Paranoid
Android")

"Hoellenengel" -- new album by Stephen Parsick, street date October 1, 2005.

For info and audio, please check www.parsick.com

Coming soon: "oughtibridge", the new [\ufffdramp] album, recorded live in
England.

For info and audio, please visit the official [\ufffdramp] website at
www.doombient.com

WTB: "England\ufffds Hidden Reverse" by David Keenan (Coil, Current93, Nurse With
Wound, David Tibet).


----- Original Message -----
From: Thorsten Pörschke <lars_thorsten@...>
To: <yamahacs80@yahoogroups.com>
Sent: Wednesday, November 30, 2005 12:23 PM
Subject: Re: [yamahacs80] I'm tuned!


>
> Hello David
>
> Thank you very much for your quick answer.
> I wanted to know which pcb (KAS, TKC, TSB1, eg.) you choosed to start
with?
> Did you also overhaul the power supply and if which parts besides the cap.
> did you changed.
>
> Greetings
> Thorsten
>
> >From: David Rogoff <david@...>
> >To: Thorsten P\ufffdrschke <lars_thorsten@...>
> >Subject: Re: [yamahacs80] I'm tuned!
> >Date: Mon, 28 Nov 2005 19:27:08 -0800
> >
> >Thorsten P\ufffdrschke wrote:
> >>Hello David
> >>
> >>Thats a great news, you did a superb job on bring your cs-80 back to new
> >>or even newer ;-).
> >>
> >Thanks.
> >>I'm just at the beginning of the same project.
> >>I allready read the tipps from oldcrow (unfortunatly he doesn't answer
my
> >>emails).
> >>But which board did you use for the start?
> >>
> >I'm not sure what you mean.
> >>Did you also change the capacitator on the voice boards?
> >>
> >No, I didn't.  I replaced/added bypass caps on all boards with CMOS
chips,
> >which I also replaced, and added sockets.
> >>Did you wrap the cs-80 also in a new tolex and what are your tipps
> >>herefore?
> >>
> >I thought about it, but mine is not bad (b+ ?), and I didn't want to gut
> >the whole case to do the work.
> >>Sorry for all of this questions but as you know this is a big project
and

> >>I wanted to be preped well.
> >>
> >No problem.
> >>I hope I can count of you if I have further question within my cs-80
> >>project.
> >>
> >Sure.  Just ask on in the group - you'll get answers from multiple people
> >and everyone can benefit.
> >
> >David
>
>
>
>
>
>
> Yahoo! Groups Links
>
>
>
>
>
>

It seems anyone that emailed to me from sbcglobal.net ended up in the 
spam bin.  Emails should come through now.

Crow
/**/

james devero wrote:

> David/Thorsten-
> Before Old Crow stopped answering my calls/e-mails....

Hello Wavecomputer360

is my english that bad ;-(
Yes I'm also from Germany and already visit your homepage with bladrunner 
sound, sounds pretty cool!

>From: "Wavecomputer360" <wavecomputer360@...>
>Reply-To: yamahacs80@yahoogroups.com
>To: <yamahacs80@yahoogroups.com>
>Subject: Re: [yamahacs80] I'm tuned!
>Date: Wed, 30 Nov 2005 12:58:17 +0100
>
>Hi Thorsten,
>
>are you located in Germany, too?
>
>Stephen
>
>
>"Ambition makes you look pretty ugly." (Thom Yorke/Radiohead -- "Paranoid
>Android")
>
>"Hoellenengel" -- new album by Stephen Parsick, street date October 1, 
>2005.
>
>For info and audio, please check www.parsick.com
>
>Coming soon: "oughtibridge", the new [\ufffdramp] album, recorded live in
>England.
>
>For info and audio, please visit the official [\ufffdramp] website at
>www.doombient.com
>
>WTB: "England\ufffds Hidden Reverse" by David Keenan (Coil, Current93, Nurse 
>With
>Wound, David Tibet).
>
>
>----- Original Message -----
>From: Thorsten P�rschke <lars_thorsten@...>
>To: <yamahacs80@yahoogroups.com>
>Sent: Wednesday, November 30, 2005 12:23 PM
>Subject: Re: [yamahacs80] I'm tuned!
>
>
> >
> > Hello David
> >
> > Thank you very much for your quick answer.
> > I wanted to know which pcb (KAS, TKC, TSB1, eg.) you choosed to start
>with?
> > Did you also overhaul the power supply and if which parts besides the 
>cap.
> > did you changed.
> >
> > Greetings
> > Thorsten
> >
> > >From: David Rogoff <david@...>
> > >To: Thorsten P\ufffdrschke <lars_thorsten@...>
> > >Subject: Re: [yamahacs80] I'm tuned!
> > >Date: Mon, 28 Nov 2005 19:27:08 -0800
> > >
> > >Thorsten P\ufffdrschke wrote:
> > >>Hello David
> > >>
> > >>Thats a great news, you did a superb job on bring your cs-80 back to 
>new
> > >>or even newer ;-).
> > >>
> > >Thanks.
> > >>I'm just at the beginning of the same project.
> > >>I allready read the tipps from oldcrow (unfortunatly he doesn't answer
>my
> > >>emails).
> > >>But which board did you use for the start?
> > >>
> > >I'm not sure what you mean.
> > >>Did you also change the capacitator on the voice boards?
> > >>
> > >No, I didn't.  I replaced/added bypass caps on all boards with CMOS
>chips,
> > >which I also replaced, and added sockets.
> > >>Did you wrap the cs-80 also in a new tolex and what are your tipps
> > >>herefore?
> > >>
> > >I thought about it, but mine is not bad (b+ ?), and I didn't want to 
>gut
> > >the whole case to do the work.
> > >>Sorry for all of this questions but as you know this is a big project
>and
> > >>I wanted to be preped well.
> > >>
> > >No problem.
> > >>I hope I can count of you if I have further question within my cs-80
> > >>project.
> > >>
> > >Sure.  Just ask on in the group - you'll get answers from multiple 
>people
> > >and everyone can benefit.
> > >
> > >David
> >
> >
> >
> >
> >
> >
> > Yahoo! Groups Links
> >
> >
> >
> >
> >
> >
>

Hi...
Does anyone have pictures of the hatch lid Diagram????could someone post a pic
in the photo section if so???

"Thorsten Pörschke" wrote:

> Hello Wavecomputer360
>
> is my english that bad ;-(
> Yes I'm also from Germany and already visit your homepage with bladrunner
> sound, sounds pretty cool!
>
> >From: "Wavecomputer360" <wavecomputer360@...>
> >Reply-To: yamahacs80@yahoogroups.com
> >To: <yamahacs80@yahoogroups.com>
> >Subject: Re: [yamahacs80] I'm tuned!
> >Date: Wed, 30 Nov 2005 12:58:17 +0100
> >
> >Hi Thorsten,
> >
> >are you located in Germany, too?
> >
> >Stephen
> >
> >
> >"Ambition makes you look pretty ugly." (Thom Yorke/Radiohead -- "Paranoid
> >Android")
> >
> >"Hoellenengel" -- new album by Stephen Parsick, street date October 1,
> >2005.
> >
> >For info and audio, please check www.parsick.com
> >
> >Coming soon: "oughtibridge", the new [\ufffdramp] album, recorded live in
> >England.
> >
> >For info and audio, please visit the official [\ufffdramp] website at
> >www.doombient.com
> >
> >WTB: "England\ufffds Hidden Reverse" by David Keenan (Coil, Current93, Nurse
> >With
> >Wound, David Tibet).
> >
> >
> >----- Original Message -----
> >From: Thorsten Pörschke <lars_thorsten@...>
> >To: <yamahacs80@yahoogroups.com>
> >Sent: Wednesday, November 30, 2005 12:23 PM
> >Subject: Re: [yamahacs80] I'm tuned!
> >
> >
> > >
> > > Hello David
> > >
> > > Thank you very much for your quick answer.
> > > I wanted to know which pcb (KAS, TKC, TSB1, eg.) you choosed to start
> >with?
> > > Did you also overhaul the power supply and if which parts besides the
> >cap.
> > > did you changed.
> > >
> > > Greetings
> > > Thorsten
> > >
> > > >From: David Rogoff <david@...>
> > > >To: Thorsten P\ufffdrschke <lars_thorsten@...>
> > > >Subject: Re: [yamahacs80] I'm tuned!
> > > >Date: Mon, 28 Nov 2005 19:27:08 -0800
> > > >
> > > >Thorsten P\ufffdrschke wrote:
> > > >>Hello David
> > > >>
> > > >>Thats a great news, you did a superb job on bring your cs-80 back to
> >new
> > > >>or even newer ;-).
> > > >>
> > > >Thanks.
> > > >>I'm just at the beginning of the same project.
> > > >>I allready read the tipps from oldcrow (unfortunatly he doesn't answer
> >my
> > > >>emails).
> > > >>But which board did you use for the start?
> > > >>
> > > >I'm not sure what you mean.
> > > >>Did you also change the capacitator on the voice boards?
> > > >>
> > > >No, I didn't.  I replaced/added bypass caps on all boards with CMOS
> >chips,
> > > >which I also replaced, and added sockets.
> > > >>Did you wrap the cs-80 also in a new tolex and what are your tipps
> > > >>herefore?
> > > >>
> > > >I thought about it, but mine is not bad (b+ ?), and I didn't want to
> >gut
> > > >the whole case to do the work.
> > > >>Sorry for all of this questions but as you know this is a big project
> >and
> > > >>I wanted to be preped well.
> > > >>
> > > >No problem.
> > > >>I hope I can count of you if I have further question within my cs-80
> > > >>project.
> > > >>
> > > >Sure.  Just ask on in the group - you'll get answers from multiple
> >people
> > > >and everyone can benefit.
> > > >
> > > >David
> > >
> > >
> > >
> > >
> > >
> > >
> > > Yahoo! Groups Links
> > >
> > >
> > >
> > >
> > >
> > >
> >
>
>
>
> Yahoo! Groups Links
>
>
>
>

Thorsten P\ufffdrschke wrote:
> Hello David
>
> Thank you very much for your quick answer.
> I wanted to know which pcb (KAS, TKC, TSB1, eg.) you choosed to start with?
> Did you also overhaul the power supply and if which parts besides the cap. 
> did you changed.
>
>   
I don't remember what order I did the boards in.  I did, however, do one 
board at a time and made sure it was still working before I did the next 
board. I did have a couple of solder bridges that took some time to 
find, and generated really weird symptoms.  You need to have a decent 
multi-meter and simple oscilloscope, the schematics (mostly available 
online - see Links), and an understanding of some digital and analog 
electronics, because something will go wrong when removing/replacing 
over a hundred 14 and 16 pin chips!

There's tons of detailed pictures I put on the site (Photos > CS80 
renovation) as I did the work.  The only thing on the power supply was 
replacing all the caps (other than calibrating it).  All 4000-series 
CMOS chips were removed, sockets soldered in, bypass caps added, and new 
chips put in.  I also added larger caps for each board.  I basically 
followed Crow's website.  The biggest help was buying a used 
de-soldering station.  It would have been crazy to try it with just a 
spring-loaded solder remover.  When I was done, I sold it (to the owner 
of the Yahoo oldsynths group).

 David

james devero wrote:
> David/Thorsten-
> Before Old Crow stopped answering my calls/e-mails....
> his review of my Cs-80 was that I needed to replace all 4 chips.
> I would guess that they the CMOS chips that David
> just referenced... *Correct?*
4 CMOS chips?  There's a lot more than that.  Maybe, based on your 
symptoms, Crow thought there were only 4 bad ones.

 David

can you explain where the bypass caps go? Is it between the power in  
VccIN on the chip and ps?
Also what about existing capacitors? which should be replaced while I  
am there?

Thanks
Rory M


On Dec 2, 2005, at 9:07 PM, David Rogoff wrote:

> Thorsten Pörschke wrote:
> > Hello David
> >
> > Thank you very much for your quick answer.
> > I wanted to know which pcb (KAS, TKC, TSB1, eg.) you choosed to  
> start with?
> > Did you also overhaul the power supply and if which parts besides  
> the cap.
> > did you changed.
> >
> >
> I don't remember what order I did the boards in.  I did, however,  
> do one
> board at a time and made sure it was still working before I did the  
> next
> board. I did have a couple of solder bridges that took some time to
> find, and generated really weird symptoms.  You need to have a decent
> multi-meter and simple oscilloscope, the schematics (mostly available
> online - see Links), and an understanding of some digital and analog
> electronics, because something will go wrong when removing/replacing
> over a hundred 14 and 16 pin chips!
>
> There's tons of detailed pictures I put on the site (Photos > CS80
> renovation) as I did the work.  The only thing on the power supply was
> replacing all the caps (other than calibrating it).  All 4000-series
> CMOS chips were removed, sockets soldered in, bypass caps added,  
> and new
> chips put in.  I also added larger caps for each board.  I basically
> followed Crow's website.  The biggest help was buying a used
> de-soldering station.  It would have been crazy to try it with just a
> spring-loaded solder remover.  When I was done, I sold it (to the  
> owner
> of the Yahoo oldsynths group).
>
> David
>
> YAHOO! GROUPS LINKS
>
>  Visit your group "yamahacs80" on the web.
>
>  To unsubscribe from this group, send an email to:
>  yamahacs80-unsubscribe@yahoogroups.com
>
>  Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service.
>
>



[Non-text portions of this message have been removed]

Hello David

what do you think of using sockets with alread installed decup. cap?
I'm not sure because I remind old crow mentioned that the drilled holes on 
the pcb are not so accurate and you have to break/cut sockets from time to 
time that they will fit in the holes.

>From: David Rogoff <david@...>
>Reply-To: yamahacs80@yahoogroups.com
>To: yamahacs80@yahoogroups.com
>Subject: Re: [yamahacs80] I'm tuned!
>Date: Fri, 02 Dec 2005 21:07:25 -0800
>
>Thorsten P\ufffdrschke wrote:
> > Hello David
> >
> > Thank you very much for your quick answer.
> > I wanted to know which pcb (KAS, TKC, TSB1, eg.) you choosed to start 
>with?
> > Did you also overhaul the power supply and if which parts besides the 
>cap.
> > did you changed.
> >
> >
>I don't remember what order I did the boards in.  I did, however, do one
>board at a time and made sure it was still working before I did the next
>board. I did have a couple of solder bridges that took some time to
>find, and generated really weird symptoms.  You need to have a decent
>multi-meter and simple oscilloscope, the schematics (mostly available
>online - see Links), and an understanding of some digital and analog
>electronics, because something will go wrong when removing/replacing
>over a hundred 14 and 16 pin chips!
>
>There's tons of detailed pictures I put on the site (Photos > CS80
>renovation) as I did the work.  The only thing on the power supply was
>replacing all the caps (other than calibrating it).  All 4000-series
>CMOS chips were removed, sockets soldered in, bypass caps added, and new
>chips put in.  I also added larger caps for each board.  I basically
>followed Crow's website.  The biggest help was buying a used
>de-soldering station.  It would have been crazy to try it with just a
>spring-loaded solder remover.  When I was done, I sold it (to the owner
>of the Yahoo oldsynths group).
>
>  David

Hello David

sorry I forgot, do you have a part list for you CS-80 project?
I already got the list from old crow's web site but maybe you have also one
where I can benefit from.

Regards
Thorsten

>From: David Rogoff <david@...>
>Reply-To: yamahacs80@yahoogroups.com
>To: yamahacs80@yahoogroups.com
>Subject: Re: [yamahacs80] I'm tuned!
>Date: Fri, 02 Dec 2005 21:07:25 -0800
>
>Thorsten P\ufffdrschke wrote:
> > Hello David
> >
> > Thank you very much for your quick answer.
> > I wanted to know which pcb (KAS, TKC, TSB1, eg.) you choosed to start 
>with?
> > Did you also overhaul the power supply and if which parts besides the 
>cap.
> > did you changed.
> >
> >
>I don't remember what order I did the boards in.  I did, however, do one
>board at a time and made sure it was still working before I did the next
>board. I did have a couple of solder bridges that took some time to
>find, and generated really weird symptoms.  You need to have a decent
>multi-meter and simple oscilloscope, the schematics (mostly available
>online - see Links), and an understanding of some digital and analog
>electronics, because something will go wrong when removing/replacing
>over a hundred 14 and 16 pin chips!
>
>There's tons of detailed pictures I put on the site (Photos > CS80
>renovation) as I did the work.  The only thing on the power supply was
>replacing all the caps (other than calibrating it).  All 4000-series
>CMOS chips were removed, sockets soldered in, bypass caps added, and new
>chips put in.  I also added larger caps for each board.  I basically
>followed Crow's website.  The biggest help was buying a used
>de-soldering station.  It would have been crazy to try it with just a
>spring-loaded solder remover.  When I was done, I sold it (to the owner
>of the Yahoo oldsynths group).
>
>  David

Between Vdd (+8.5V) and Vss (-6.5V) of each IC.  I use Mil-Max 
"capped" sockets for this.  They are a little difficult to seat into the 
board as the hole spacing is a little wider than 300 mils, but it can be 
done--I do it all the time. :)

  Existing caps may as well be replaced.  Especially electrolytics.  I 
tend to replace the old "main" filter capacitors in the power supply.  
The old ones are cemented to the board, but the adhesive can be cut with 
an Xacto blade.  New ones with the correct lead spacing are hard to find 
for the larger cap pair, so I use whatever I can find as a closest fit 
then anchor them to the board using cemedine (the same stuff Yamaha 
used, it is a common non-conductive type of model cement).

Crow
/**/

rorymcd@... wrote:

>can you explain where the bypass caps go? Is it between the power in  
>VccIN on the chip and ps?
>Also what about existing capacitors? which should be replaced while I  
>am there?
>
>Thanks
>Rory M
>
>  
>

In general practice, I have not needed to split sockets apart to fit 
the hole spacing.  Pressing turned-pin sockets into the slightly wider 
spacing becaomes an acquired habit.  Difficult at first, but it gets 
easier as one becomes more familiar with the procedure.

  One note: make sure the holes are "open" and not partially clogged 
with old solder.  Clogged holes can result in breaking pads off the 
board when pushing the socket into place.

  Someone asked for a board overhaul order.  I tend to favor this one: 
TKC, KAS, SH, TSB1, TSB2.  I like to get the board with the most parts 
to replace out of the way first.

Crow
/**/

Thorsten P\ufffdrschke wrote:

>what do you think of using sockets with alread installed decup. cap?
>I'm not sure because I remind old crow mentioned that the drilled holes on 
>the pcb are not so accurate and you have to break/cut sockets from time to 
>time that they will fit in the holes.
>  
>

--- In yamahacs80@yahoogroups.com, laurie <laurie@m...> wrote:
>
> Hi...
> Does anyone have pictures of the hatch lid Diagram????could someone
post a pic
> in the photo section if so???

I'd scan it if someone would answer my question about how to remove
the panel!  I can try taking a photo.

Also, someone had mentioned that I should name my CS-80.  Well, the
serial number is 1646, so I googled that and found out it's the year
Gottfried Leibnitz was born, so my CS-80 is now named Gottfried.

 David

I've made several attempts here top photograph the hatch lid, but I just 
can't seem to get the lighting right. With or without the camera flash, 
I keep getting totally unacceptable glare off of the lid. This is going 
to require some carefully planned indirect lighting which is still 
bright enough to get a good photo. I've tried... it's just harder than I 
expected!

-Tim S.
<Minneapolis>

David Rogoff wrote:

> --- In yamahacs80@yahoogroups.com, laurie <laurie@m...> wrote:
> >
> > Hi...
> > Does anyone have pictures of the hatch lid Diagram????could someone
> post a pic
> > in the photo section if so???
>
> I'd scan it if someone would answer my question about how to remove
> the panel!  I can try taking a photo.
>

If I remember I have a picture of it on the CS-80V manual, I'll post ASAIC ;-)
M

  ----- Original Message ----- 
  From: Tim Siefkes 
  To: yamahacs80@yahoogroups.com 
  Sent: Sunday, December 11, 2005 1:37 PM
  Subject: Re: [yamahacs80] Re: I'm tuned!


  I've made several attempts here top photograph the hatch lid, but I just 
  can't seem to get the lighting right. With or without the camera flash, 
  I keep getting totally unacceptable glare off of the lid. This is going 
  to require some carefully planned indirect lighting which is still 
  bright enough to get a good photo. I've tried... it's just harder than I 
  expected!

  -Tim S.
  <Minneapolis>

  David Rogoff wrote:

  > --- In yamahacs80@yahoogroups.com, laurie <laurie@m...> wrote:
  > >
  > > Hi...
  > > Does anyone have pictures of the hatch lid Diagram????could someone
  > post a pic
  > > in the photo section if so???
  >
  > I'd scan it if someone would answer my question about how to remove
  > the panel!  I can try taking a photo.
  >




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[Non-text portions of this message have been removed]

I really am not sure how it comes off......My first Cs 80 had the hatch
but due to a pop spill by an overactive drummer.....combined with a good
insurance agent.... I received a new Cs80 from a store that was
unfortunately hatchless..... and my insurance company kept the old
one......( it sure gets dusty in there without it, especially on the
road)......I  believe there are two u shaped channels that the lid would
slide out along however I'm not sure if the lid needs to be up
fractionally to slide , or up the entire way..... force should not be a
requirement.... let me confirm  what is left in mine............

David Rogoff wrote:

>  --- In yamahacs80@yahoogroups.com, laurie <laurie@m...> wrote:
> >
> > Hi...
> > Does anyone have pictures of the hatch lid Diagram????could someone
> post a pic
> > in the photo section if so???
>
> I'd scan it if someone would answer my question about how to remove
> the panel!  I can try taking a photo.
>
> Also, someone had mentioned that I should name my CS-80.  Well, the
> serial number is 1646, so I googled that and found out it's the year
> Gottfried Leibnitz was born, so my CS-80 is now named Gottfried.
>
> David
>
>
>
>
>
> SPONSORED LINKS
>
    Music sampler              Unit      Synthesizer

    Sampler

> -----------------------------------------------------------------------
> YAHOO! GROUPS LINKS
>
>    +  Visit your group "yamahacs80" on the web.
>
>    +  To unsubscribe from this group, send an email to:
>       yamahacs80-unsubscribe@yahoogroups.com
>
>    +  Your use of Yahoo! Groups is subject to the Yahoo! Terms of
>      Service.
>
> -----------------------------------------------------------------------
>


[Non-text portions of this message have been removed]

Ok, I did it!  First, to remove the memory cover you have to open the
lid (3 big screws) and them remove the whole memory assembly form the
panel (6 little screws).  Then you remove the block that hold the
hinge pin from either side (2 little screws).

I uploaded a scan of the cover in to the Photos page.

 David



--- In yamahacs80@yahoogroups.com, laurie <laurie@m...> wrote:
>
> I really am not sure how it comes off......My first Cs 80 had the hatch
> but due to a pop spill by an overactive drummer.....combined with a good
> insurance agent.... I received a new Cs80 from a store that was
> unfortunately hatchless..... and my insurance company kept the old
> one......( it sure gets dusty in there without it, especially on the
> road)......I  believe there are two u shaped channels that the lid would
> slide out along however I'm not sure if the lid needs to be up
> fractionally to slide , or up the entire way..... force should not be a
> requirement.... let me confirm  what is left in mine............
> 
> David Rogoff wrote:
> 
> >  --- In yamahacs80@yahoogroups.com, laurie <laurie@m...> wrote:
> > >
> > > Hi...
> > > Does anyone have pictures of the hatch lid Diagram????could someone
> > post a pic
> > > in the photo section if so???
> >
> > I'd scan it if someone would answer my question about how to remove
> > the panel!  I can try taking a photo.
> >
> > Also, someone had mentioned that I should name my CS-80.  Well, the
> > serial number is 1646, so I googled that and found out it's the year
> > Gottfried Leibnitz was born, so my CS-80 is now named Gottfried.
> >
> > David
> >
> >
> >
> >
> >
> > SPONSORED LINKS
> >
>     Music sampler              Unit      Synthesizer
> 
>     Sampler
> 
> >
-----------------------------------------------------------------------
> > YAHOO! GROUPS LINKS
> >
> >    +  Visit your group "yamahacs80" on the web.
> >
> >    +  To unsubscribe from this group, send an email to:
> >       yamahacs80-unsubscribe@yahoogroups.com
> >
> >    +  Your use of Yahoo! Groups is subject to the Yahoo! Terms of
> >      Service.
> >
> >
-----------------------------------------------------------------------

> >
> 
> 
> [Non-text portions of this message have been removed]
>

Wow, that had a whole bunch of typos (which, of course, the 
spell-checker didn't catch, since they were all real words).

 David