Sony PCV-J200 - Manual (Page 72)

VAIO® System Reference Manual 60
Configuration Jumper
There is one user-configurable jumper for CMOS Clear.
The computer ships with CMOS Clear in the Normal position. Do not
change the position of this jumper unless directed by a technical support
person.
CMOS CLR
= default jumper
CMOS Clear
1-2
Normal Clear
2-3
1 2 3