BA617
2010-07-08 by Max Fazio
Hi all As on object: anybody has the datasheet? The one from Yamaha IC chips is poorly detailed and ther is no diagram... Thx for any help ;-) M [Non-text portions of this message have been removed]
Thread
BA617
Re: BA617
2010-07-09 by zenithaudio2003
hi , i thinks this is all we got http://www.flickr.com/photos/31603983@N05/ --- In yamahacs80@yahoogroups.com, "Max Fazio" <faxiomas@...> wrote:
Show quoted textHide quoted text
> > Hi all > As on object: anybody has the datasheet? The one from Yamaha IC chips is poorly detailed and ther is no diagram... > Thx for any help > ;-) > M > > [Non-text portions of this message have been removed] >
Re: [yamahacs80] Re: BA617
2010-07-09 by gavin curtis
If this IC is bad, it wouldn't be too difficult to find an alternative solution. ModuleMaster/Circuit Solutions Inc. 2006 S Main Moscow, ID 83843, USA www.modulemaster.com Tel: 208-892-0764/888-892-0764 --- On Thu, 7/8/10, zenithaudio2003 <zenithaudio2003@...> wrote:
Show quoted textHide quoted text
From: zenithaudio2003 <zenithaudio2003@...>
Subject: [yamahacs80] Re: BA617
To: yamahacs80@yahoogroups.com
Date: Thursday, July 8, 2010, 5:08 PM
hi , i thinks this is all we got
http://www.flickr.com/photos/31603983@N05/
--- In yamahacs80@yahoogroups.com, "Max Fazio" <faxiomas@...> wrote:
>
> Hi all
> As on object: anybody has the datasheet? The one from Yamaha IC chips is poorly detailed and ther is no diagram...
> Thx for any help
> ;-)
> M
>
> [Non-text portions of this message have been removed]
>
[Non-text portions of this message have been removed]Re: BA617
2010-07-09 by zenithaudio2003
There is plenty of those in my house and in circulation you just have to look in the right places .( http://www.flickr.com/photos/31603983@N05/4776305351/ ) if you ever need one. In the OE2 schematic it is the clock that control the chorus bucket brigade MN3001 you better check the tc4049 hex buffer first(cmos) ???? is that the topic ???? the mn3001 datasheet give that circuit http://www.flickr.com/photos/31603983@N05/4776969718/ maybe i am way off topic ! --- In yamahacs80@yahoogroups.com, gavin curtis <gavincurtis@...> wrote:
Show quoted textHide quoted text
> > If this IC is bad, it wouldn't be too difficult to find an alternative solution. > > ModuleMaster/Circuit Solutions Inc. > > 2006 S Main > > Moscow, ID 83843, USA > > www.modulemaster.com > > Tel: 208-892-0764/888-892-0764 > > --- On Thu, 7/8/10, zenithaudio2003 <zenithaudio2003@...> wrote: > > From: zenithaudio2003 <zenithaudio2003@...> > Subject: [yamahacs80] Re: BA617 > To: yamahacs80@yahoogroups.com > Date: Thursday, July 8, 2010, 5:08 PM > > > > > > > > Â > > > > > > > > > > hi , i thinks this is all we got > > http://www.flickr.com/photos/31603983@N05/ > > > > --- In yamahacs80@yahoogroups.com, "Max Fazio" <faxiomas@> wrote: > > > > > > Hi all > > > As on object: anybody has the datasheet? The one from Yamaha IC chips is poorly detailed and ther is no diagram... > > > Thx for any help > > > ;-) > > > M > > > > > > [Non-text portions of this message have been removed] > > > > > > > > > > > > > > > > > > > > > > > > > > [Non-text portions of this message have been removed] >
Re: [yamahacs80] Re: BA617
2010-07-09 by Max Fazio
Thx Gavin but I couldn't locate the chip on the site you mentioned! Is the chip's ID the one you wrote, as a whole? M
Show quoted textHide quoted text
----- Original Message -----
From: gavin curtis
To: yamahacs80@yahoogroups.com
Sent: Friday, July 09, 2010 3:51 AM
Subject: Re: [yamahacs80] Re: BA617
If this IC is bad, it wouldn't be too difficult to find an alternative solution.
ModuleMaster/Circuit Solutions Inc.
2006 S Main
Moscow, ID 83843, USA
www.modulemaster.com
Tel: 208-892-0764/888-892-0764
--- On Thu, 7/8/10, zenithaudio2003 <zenithaudio2003@...> wrote:
From: zenithaudio2003 <zenithaudio2003@...>
Subject: [yamahacs80] Re: BA617
To: yamahacs80@yahoogroups.com
Date: Thursday, July 8, 2010, 5:08 PM
hi , i thinks this is all we got
http://www.flickr.com/photos/31603983@N05/
--- In yamahacs80@yahoogroups.com, "Max Fazio" <faxiomas@...> wrote:
>
> Hi all
> As on object: anybody has the datasheet? The one from Yamaha IC chips is poorly detailed and ther is no diagram...
> Thx for any help
> ;-)
> M
>
> [Non-text portions of this message have been removed]
>
[Non-text portions of this message have been removed]
[Non-text portions of this message have been removed]Re: [yamahacs80] Re: BA617
2010-07-09 by gavin curtis
I had problems with my glissando/portamento, but resolved after replacing all the CMOS. The chip is a simple oscillator with square wave output. A 555 or other type of oscillator comprised of comparators could be made to work in exactly the same way. It would of course be a small separate board of multiple components and not as neat as the original BA617. So not the end of the world if your truly have a bad BA617 and cannot locate a replacement. ModuleMaster/Circuit Solutions Inc. 2006 S Main Moscow, ID 83843, USA www.modulemaster.com Tel: 208-892-0764/888-892-0764 --- On Fri, 7/9/10, Max Fazio <faxiomas@...> wrote:
Show quoted textHide quoted text
From: Max Fazio <faxiomas@...>
Subject: Re: [yamahacs80] Re: BA617
To: yamahacs80@yahoogroups.com
Date: Friday, July 9, 2010, 1:49 PM
Thx Gavin but I couldn't locate the chip on the site you mentioned!
Is the chip's ID the one you wrote, as a whole?
M
----- Original Message -----
From: gavin curtis
To: yamahacs80@yahoogroups.com
Sent: Friday, July 09, 2010 3:51 AM
Subject: Re: [yamahacs80] Re: BA617
If this IC is bad, it wouldn't be too difficult to find an alternative solution.
ModuleMaster/Circuit Solutions Inc.
2006 S Main
Moscow, ID 83843, USA
www.modulemaster.com
Tel: 208-892-0764/888-892-0764
--- On Thu, 7/8/10, zenithaudio2003 <zenithaudio2003@...> wrote:
From: zenithaudio2003 <zenithaudio2003@...>
Subject: [yamahacs80] Re: BA617
To: yamahacs80@yahoogroups.com
Date: Thursday, July 8, 2010, 5:08 PM
hi , i thinks this is all we got
http://www.flickr.com/photos/31603983@N05/
--- In yamahacs80@yahoogroups.com, "Max Fazio" <faxiomas@...> wrote:
>
> Hi all
> As on object: anybody has the datasheet? The one from Yamaha IC chips is poorly detailed and ther is no diagram...
> Thx for any help
> ;-)
> M
>
> [Non-text portions of this message have been removed]
>
[Non-text portions of this message have been removed]
[Non-text portions of this message have been removed]
[Non-text portions of this message have been removed]Re: [yamahacs80] Re: BA617
2010-07-10 by gavin curtis
I was not the individual who gave you other part numbers... although many versions of Japanese ICs SIP are still available. But the SA617 may have extended bandwidth. It only uses 1 resistor and a single capacitor for a timing reference. ModuleMaster/Circuit Solutions Inc. 2006 S Main Moscow, ID 83843, USA www.modulemaster.com Tel: 208-892-0764/888-892-0764 --- On Fri, 7/9/10, gavin curtis <gavincurtis@...> wrote:
Show quoted textHide quoted text
From: gavin curtis <gavincurtis@...>
Subject: Re: [yamahacs80] Re: BA617
To: yamahacs80@yahoogroups.com
Date: Friday, July 9, 2010, 3:23 PM
I had problems with my glissando/portamento, but resolved after replacing all the CMOS. The chip is a simple oscillator with square wave output. A 555 or other type of oscillator comprised of comparators could be made to work in exactly the same way. It would of course be a small separate board of multiple components and not as neat as the original BA617.
So not the end of the world if your truly have a bad BA617 and cannot locate a replacement.
ModuleMaster/Circuit Solutions Inc.
2006 S Main
Moscow, ID 83843, USA
www.modulemaster.com
Tel: 208-892-0764/888-892-0764
--- On Fri, 7/9/10, Max Fazio <faxiomas@...> wrote:
From: Max Fazio <faxiomas@...>
Subject: Re: [yamahacs80] Re: BA617
To: yamahacs80@yahoogroups.com
Date: Friday, July 9, 2010, 1:49 PM
Thx Gavin but I couldn't locate the chip on the site you mentioned!
Is the chip's ID the one you wrote, as a whole?
M
----- Original Message -----
From: gavin curtis
To: yamahacs80@yahoogroups.com
Sent: Friday, July 09, 2010 3:51 AM
Subject: Re: [yamahacs80] Re: BA617
If this IC is bad, it wouldn't be too difficult to find an alternative solution.
ModuleMaster/Circuit Solutions Inc.
2006 S Main
Moscow, ID 83843, USA
www.modulemaster.com
Tel: 208-892-0764/888-892-0764
--- On Thu, 7/8/10, zenithaudio2003 <zenithaudio2003@...> wrote:
From: zenithaudio2003 <zenithaudio2003@yahoo.ca>
Subject: [yamahacs80] Re: BA617
To: yamahacs80@yahoogroups.com
Date: Thursday, July 8, 2010, 5:08 PM
hi , i thinks this is all we got
http://www.flickr.com/photos/31603983@N05/
--- In yamahacs80@yahoogroups.com, "Max Fazio" <faxiomas@...> wrote:
>
> Hi all
> As on object: anybody has the datasheet? The one from Yamaha IC chips is poorly detailed and ther is no diagram...
> Thx for any help
> ;-)
> M
>
> [Non-text portions of this message have been removed]
>
[Non-text portions of this message have been removed]
[Non-text portions of this message have been removed]
[Non-text portions of this message have been removed]
[Non-text portions of this message have been removed]Re: [yamahacs80] Re: BA617
2010-07-10 by gavin curtis
Test that the BA617 IC has proper voltages and grounds, the mylar timing capacitor is okay and that the resistor network is good. Disconnect the IC output from the circuit board. If the output pin still has no waveform, then BA617 is most likely dead. ModuleMaster/Circuit Solutions Inc. 2006 S Main Moscow, ID 83843, USA www.modulemaster.com Tel: 208-892-0764/888-892-0764 --- On Fri, 7/9/10, zenithaudio2003 <zenithaudio2003@yahoo.ca> wrote:
Show quoted textHide quoted text
From: zenithaudio2003 <zenithaudio2003@...>
Subject: [yamahacs80] Re: BA617
To: yamahacs80@yahoogroups.com
Date: Friday, July 9, 2010, 2:43 AM
There is plenty of those in my house and in circulation you just have to look in the right places .( http://www.flickr.com/photos/31603983@N05/4776305351/ ) if you ever need one. In the OE2 schematic it is the clock that control the chorus bucket brigade MN3001 you better check the tc4049 hex buffer first(cmos) ???? is that the topic ???? the mn3001 datasheet give that circuit http://www.flickr.com/photos/31603983@N05/4776969718/
maybe i am way off topic !
--- In yamahacs80@yahoogroups.com, gavin curtis <gavincurtis@...> wrote:
>
> If this IC is bad, it wouldn't be too difficult to find an alternative solution.
>
> ModuleMaster/Circuit Solutions Inc.
>
> 2006 S Main
>
> Moscow, ID 83843, USA
>
> www.modulemaster.com
>
> Tel: 208-892-0764/888-892-0764
>
> --- On Thu, 7/8/10, zenithaudio2003 <zenithaudio2003@...> wrote:
>
> From: zenithaudio2003 <zenithaudio2003@...>
> Subject: [yamahacs80] Re: BA617
> To: yamahacs80@yahoogroups.com
> Date: Thursday, July 8, 2010, 5:08 PM
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> http://www.flickr.com/photos/31603983@N05/
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> --- In yamahacs80@yahoogroups.com, "Max Fazio" <faxiomas@> wrote:
>
> >
>
> > Hi all
>
> > As on object: anybody has the datasheet? The one from Yamaha IC chips is poorly detailed and ther is no diagram...
>
> > Thx for any help
>
> > ;-)
>
> > M
>
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