Hi there.
I cannot help directly with your fault(s) and have not suffered those
problems,
hoever if you ecide you are going to switch out parts I have the
following
from an S1100 that was working and parted for spares for other
machines.
*Motherboard
*Effects board
*SCSI board
*I/O boards
*PSU board
If you do decide to go down that route let me know the parts you want and
make me an offer
for them. I will be shipping from Japan so there will be some postage to
consider.
Good luck!
Best regards
Tee.