I am a hardcore user of ASR-10 over the years.
I just put in a new internal power supply as the old one died.

Now what is happening is - The ASR does not communicate via SCSI or FLOPPY.
The yellow light is ON CONSTANTLY on the floppy drive.
It does not recognize my ZIP Drive at all.

HELP. HELP. I wannna sell this unit and need it fixed.

in your other thread I was just about to suggest that it was a powersupply problem.
Check powersupply specs and measure it. Yourself or by "expert".