Yamaha CS80

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
>
>  
>