David, there isn't an industry standard part number or simple source for the bulbs that I am selling.
Here's my e-bay page where you can buyt them:
http://cgi.ebay.com/Yamaha-CS-80-CS80-Preset-Incandescent-Bulbs-/320677774366?pt=Keyboards_MIDI&hash=item4aa9e2841e --- In yamahacs80@yahoogroups.com, David Rogoff <david@...> wrote:
>
> Fernando,
>
> Please put your parts spreadsheet in the files section of the site. I'm planning on making a full table of all the usual parts that need replacing with current equivalents and commons (e.g. Digikey) supplier part numbers.
>
> Mike, could you please post the part numbers and source for the lamps you found to add to this list?
>
> Also, I'm sure Fernando is right about the TSBs needing redoing, but the bad notes repeating looks like a problem with the 4051 enable pins, which come from the TKC. The cs80 I'm working on had this issue which turned out to be wires broken off on the TKC and TSBs.
>
> David
>
> Sent from my iPad
>
> On Mar 31, 2011, at 2:45 PM, Andrew Kirkby <kirkbyte@...> wrote:
>
> > Hi Fernando,
> >
> > It is likely to be the TSB boards. When you press a key the signal
> > from the FSR on the key is buffered by the TSB circuit. I'd say that
> > some of the 4051 on TSB boards are not working properly and not
> > outputting the signal to the multiplexing circuits on the TKC.
> >
> > It would be wise to completely overhaul the TSB boards, replacing all
> > capacitors and CMOS with newer ones. I use Panasonic FC electrolytics,
> > WIMA polypropylene and TI CMOS with Mil-Max gold sockets. If you need
> > the digikey PN#s send me an email and i'll mail you a spreadsheet.
> >
> > AK
> > On 01/04/2011, at 8:31 AM, Fernando Zarone wrote:
> >
> >> Hello,
> >> my CS-80 has the following defect:
> >> the notes C# D D# and G G# A do not respond to AT, in all of the
> >> octaves. All the others do.
> >> Thinking this to be a problem of TKC, I replaced all of the
> >> (socketed) ICs, resoldered all of the wires, but nothing.
> >> The problem is shown in both CH I and II presets.
> >>
> >> Could somebody help me, please? Does the AT of these two groups of
> >> adjacent keys correspond to specific component(s) / boards?
> >>
> >> I did not check the TSBs. Could they be involved?
> >>
> >> Every help is very welcome.
> >>
> >> Ciao a tutti
> >>
> >> Fernando
> >>
> >> [Non-text portions of this message have been removed]
> >>
> >>
> >>
> >
> > Andrew Kirkby
> > (e) kirkbyte@...
> > (m) 0416 000 070
> >
> >
> >
> >
> >
> >
> > [Non-text portions of this message have been removed]
> >
> >
> >
> > ------------------------------------
> >
> > Yahoo! Groups Links
> >
> >
> >
>