I cleaned things up enough to get the self-test and
startup to run. The
DB-9F mouse connector is effectively destroyed from the battery
electrolyte. If I wiggle the connector the mouse is operational, though.
A good sign. Not looking forward to pulling the old DB9 right-angle
connector from the motherboard... This one is too far gone for cleaning
and will definitely need to be replaced.
Steven, when I get some device with this level of trouble, I usually
disassemble EVERYTHING in the affected area, clean it up with grit pad until
I can see only cooper and start to retin the traces with common solder, and
repair broken traces with very thin wire-up wire. Replace everything with
NEW parts. Usually it works at first and does not break up after. A throught
clean-up is primordial for having no problems on the future.
I'm sorry I'm so far away (I live in Brazil). I'd love to help you on
this matter.