Epson Equity 286 PLUS - Manual (Page 111)

5. Raise the front of the subassembly, as shown below.
6. Reach back underneath the subassembly and disconnect the
two power supply cables connected to the back right side of
the main system board, as shown below. Pull each of the
connectors straight up. Do not pull only on the cables.
Installing
and Removing Options 5-21