MITSUBISHI ELECTRIC T-60 - Manual (Page 58)

9. Replace cover and cover screws.
10. Reconnect power to the unit.
11. If you notice any problems that can’t be explained by the battery being
installed upside down (no non-volatile memory), disconnect power and
connect an IBM KEYBOARD to the KEYBOARD connector. Make sure
that the keyboard is a type which is compatible with an IBM PC XT (not
AT).
12. Re-connect power to the unit. Press the CTRL, ALT, and DEL keys on the
IBM KEYBOARD simultaneously. This will reset the unit, and normal
operation will begin. Call Emerson EMC if any problems persist.
T-60 Operator's Manual
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