GE
P
ART NUMBER FN091065, REVISION 2 VS5 N AND VS6 N SERVICE MANUAL
Chapter 8 - Replacement Procedures 8-71
PRELIMINARY
8-4-5 Mechanical Trackball and Housing Replacement Procedure
NOTE: Before performing this procedure, clean the trackball and bowl (since dirt may be the cause of the
current fault). Refer to the instructions described in “Mechanical Trackball Cleaning” on page 10-12.
8-4-5-1 Tools
Use the appropriate screwdriver and 5.5 mm nut driver/box spanner, as indicated in the Mechanical
Trackball and Housing replacement procedure.
8-4-5-2 Preparation
Shut down the Vivid S5 N or Vivid S6 N ultrasound unit, as described in 4-2-3 "Power Shut Down" on
page 4-7.
NOTE: Before performing this procedure, observe the current trackball speed setting. After completion of the
installation procedure, the same trackball speed setting will be required. This is set using the procedure
described in “Trackball Speed Setting” on page 6-9.
8-4-5-3 Mechanical Trackball and Housing Removal Procedure
1.) Remove the Keyboard Assembly, as described in the “Keyboard Assembly Removal Procedure” on
page 8-39.
2.) Place the Keyboard Assembly on a flat, clean, stable surface. Working from the top, remove the
trackball ring by turning it counter-clockwise (1/4 turn).
3.) Remove the trackball (and friction ring, if applicable), as shown in Figure 8-87.
4.) Carefully turn the Keyboard Assembly over (upside-down).
5.) Remove the Keyboard Bottom Cover, as described in the “Keyboard Bottom Cover Removal
Procedure” on page 8-59.
When performing these procedures, take precautions to avoid damage of
electrostatic-sensitive components. Always have the ESD wrist strap
connected either to the DIB chassis or to the GND plug at the rear of the
scanner, and to your hand.
If a battery is present, first remove the battery as it contains stored energy.
Refer to “Battery Removal Procedure” on page 8-116.
Figure 8-87 Mechanical Trackball Housing
Mechanical trackball housing and nuts
Old-type Friction Ring
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