"JM" wrote in message
...
Hi all,

I have a Kurzweil PC-88 keyboard with a dead left channel main output.
Both channels work properly via the headphones. Can someone point me in
the
direction of a schematic? I have a donor keyboard but the outputs board
on
it has other issues that make swapping the two not practical. I'm hoping
I
can identify the components that make up the left channel output and just
swap them individually.


i service a lot of casio keyboards and the most common thing to go wrong
with them is bad headphone sockets - this often causes one or both channels
to cut out due to the internal switches in the socket - try swapping over
the headphone socket from the good board