On May 29, 10:47*am, Robert Macy wrote:
Have a Battery Technology, Inc. AC Adapter for an IBM Laptop
IB-PS365, 55W 16V 3.4A

The thing has gone intermittent. *By slightly flexing the case, comes
back on, so idea is to disassemble, solder traces and be up and
running instantly.

but...how to disassemble?

Anybody done that?

Found it! Cold solder joint in the middle of the PCB to a large gauge
through hole component. Don't know to what on the other side, but the
wire looked 20 - 22 Awg size and had a neat fuzzy line around it to
the cone of solder, which 'looked' good. Evidently over time the gap
widened until intermittent and then open.

Culmination:
Case SNAPS apart.
Fish paper/copper shield easily opened.
Cold solder joint in the middle of the PCB.

All back together now and working!

Thank you everyone for suggestions.