Yamaha CS80

Hello

You need an oscilloscope and the ability to handle the scope and the 
ability to read schematics and pcb layouts.

To be honest: As long as you are not an "electronics guy" the chances 
that you will destroy your CS are bigger than the chances that you will 
repair it.
Just as simple example: one mounting rail of the cards runs supply 
voltage. If you get the wrong contact between a device in the synth and 
this mounting rail, you may blow a lot of things...

I am sorry, that I don't have better news for you.

Florian

Am 15.09.2017 um 04:58 schrieb joaopaulosilva12@... [yamahacs80]:
>
> My Sub Oscillator section is not working at all.
>
>
> What's the best way to go about troubleshooting the different 
> components for failures on the board?
>
>
> How do I measure the LFO IG00150 chip to see if its good or bad? Mind 
> you, I am not an electronics guy so I would need detailed 
> instructions. I don't have a technician anywhere near where I live so 
> trying to do this solo.
>
>
> Much appreciated.
>
> _

-- 
http://www.florian-anwander.de