Yes - I did that on my CS60 many years ago. However, on a CS80 there’s two issues: which M card do you put it on? Already you have the issue of no driver transistor so you start loading the gate signal and a CS80 has that going to two different cards for each of the eight. If you put LEDs on all 16 cards, then you’re really loading down the gate signals. If you get really efficient, low-current LEDs and use big limiting resistors (equals very dim lights), you can probably get away with it.
David
> On Nov 5, 2014, at 1:14 PM, florian anwander fanwander@... [yamahacs80] <yamahacs80@yahoogroups.com> wrote:
>
> Hello
>
> Am 05.11.2014 21:41, schrieb r_j_d_2.phila@... [yamahacs80]:
>> hi all, so i was looking over the data on the rogoffs.com, and found
>> images for the KAS wiring for the trigger LED, which i'm thinking of
>> tackling. however, does anyone have the schematics/layout of the
>> breadboard? thanks much, RJ
>
> Why do you want to put it on the KAS board? Put the LED on the
> Voiceboard itself. There you will need it when you are tuning the synth.
> Also it is much easier to achieve.
>
> See http://fa.utfs.org/diy/yamaha_cs60
>