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    20   SBC-770  User Manual

J4

LCD driving voltage select (J4)

You can select the LCD connector CN6 (pin 5 and pin 6) driving
voltage by setting J4.  The configurations  are as follows:

LCD driving voltage select (J4)

*default

1    2   3

1    2   3

Clear CMOS (J2)

You can use J2 to clear the CMOS data if necessary.  To reset the
CMOS data, set J2 to 2-3 closed for just a few seconds, and then
move the jumper back to 1-2 closed.

Clear CMOS (J2)

J2

*default

1   2   3

1   2   3