Yamaha CS80

Fernando, you need to jumper two pairs of wires to safely operate the power supply out of circuit.

If you look at the schematic these are the +15&+15sense and also the -15&-15sense.

I usually do this at the board by soldering little loops of wire directly to the pillars.

Cheers,
TOM



--- In yamahacs80@yahoogroups.com, Fernando Zarone <fernandozarone@...> wrote:
>
> A question. 
> If something is wrong in the PSU of CS-80, how to check why all of the CC voltages are faulty from the origin? Usually one separates the PSU unit from the machine and checks where it is bad. In the service manual (p. 59 if I don't get wrong)  it is alerted not to detach the connectors from the PSU, for the risk of damaging the whole. 
> So, how to check the PSU unit? 
> Moreover, if both two fuses are ok, is there any other  component protecting the system ?
> 
> Thanks
> Fernando 
> 
> 
> [Non-text portions of this message have been removed]
>