Track Ball (Bkds-7031) - Sony DVS-7200A Maintenance Manual

4-1. Cleaning

4-1-3. Track Ball (BKDS-7031)

4-1-3. Track Ball (BKDS-7031)
If the track ball of BKDS-7031 has dirt, the display will
not operate sometimes when moving the track ball.
It is recommended to clean the track ball every a month.
(1) Open the panel. (Refer to the section 1-2-1.)
(2) Turn off the power switch in the control panel.
(Refer to the section 1-2-2.)
(3) When cleaning the track ball of BKDS-7031 with
installed to the adaptor box (BKDS-7075), remove the
two screws and the AD panel.
(Refer to "2. Adaptor Box" in the section 1-2-3.)
(4) Turn the ball retainer counterclockwise to release a
lock.
(5) Push up the track ball from the hole on the KY-329
board and remove the track ball and ball retainer.
(6) Wipe the track ball and the *-marked portions in the
figure by a soft cloth or the like.
(7) Install the track ball and ball retainer.
(8) Turn the ball retainer clockwise to lock.
4-2
Track ball
*
DVS-7200AE MMP1