Smiths Kelvin Hughes Nucleus 3 5000 Series, System Handbook

Page: 283 / 510

5000 Se ries Screen Con trol Unit
12 To remove and Clean the Trackerball :
(1) Locate the Access Plate (A) on the underside of
the Screen Control Unit (SCU). Refer to Figures 1
and 2 (for 5000 series) and Figures 3 and 4 (for
6000 series).
(2) Remove the screws that hold the access plate to
the underside of the SCU.
(3) A flying lead runs from the base of the Trackerball
unit to the Trackerball PCB. Disconnect the flying
lead from the Trackerball PCB.
(4) Remove the four Trackerball Unit retaining
screws.
(5) The Trackerball Unit can now be withdrawn from
the upper part of the Screen Control Unit.
(6) Saturate the cotton buds with the cleaning fluid
and clean the rollers and Trackerball.
(7) Re-assembly of the SCU is the reverse of the
procedures in sub-paragraphs (2) to (5) above.
6000 Se ries Screen Con trol Unit
13 To remove and Clean the Trackerball :
(1) Locate the Access Plate (A) on the underside of
the Screen Control Unit (SCU). Refer to Figures 1
and 2 (for 5000 series) and Figures 3 and 4 (for
6000 series).
(2) Release the screws that hold the access plate to
the SCU Baseplate.
(3) A flying lead runs from the base of the Trackerball
unit to the Trackerball PCB. Disconnect the flying
lead from the Trackerball PCB.
(4) Remove the four Trackerball Unit retaining
screws.
(5) The Trackerball Unit can now be withdrawn from
the upper part of the Screen Control Unit.
(6) Saturate the cotton buds with the cleaning fluid
and clean the rollers and Trackerball.
(7) Re-assembly of the SCU is the reverse of the
procedures in sub-paragraphs (2) to (5) above.
Original 6.3 May 01
KH 2020
Chap 6
I
I
O
O
5000
NUCLEUS 3
KELVIN HUGHES
RADAR CIRCLE
CURSOR OUTSIDE CIRCLE
CURSOR INSIDE CIRCLE
CD-4699
ON/OFF
DEGAUSS TRACKERBALL
PUSHBUTTONS
Figure 1 - Screen Control Unit (5000 Series)
A = ACCESS PLATE
A
CD-0087
Figure 2 - Access Plate Removal (5000 Series)
CD-4698
RADAR CIRCLE
CURSOR OUTSIDE CIRCLE
CURSOR INSIDE CIRCLE
6000
NUCLEUS
3
PUSHBUTTONS
TRACKERBALL
ON/OFF
DEGAUSS
Figure 3 - Screen Control Unit (6000 Series)
CD-2366
Figure 4 - Access Plate Removal (6000 Series)