GE Vivid S5 N Service Manual page 597

P R E L I M I N A R Y
GE
P N FN091065, R
ART UMBER
8-4-5 Mechanical Trackball and Housing Replacement Procedure
CAUTION
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
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
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
8-4-5-3 Mechanical Trackball and Housing Removal Procedure
1.) Remove the Keyboard Assembly, as described in the
page
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
4.) Carefully turn the Keyboard Assembly over (upside-down).
5.) Remove the Keyboard Bottom Cover, as described in the
Procedure" on page
2
EVISION
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
"Trackball Speed Setting" on page
8-39.
Mechanical trackball housing and nuts
Figure 8-87 Mechanical Trackball Housing
8-59.
Chapter 8 - Replacement Procedures
VS5 N
8-116.
"Mechanical Trackball Cleaning" on page
6-9.
"Keyboard Assembly Removal Procedure" on
Figure
"Keyboard Bottom Cover Removal
VS6 N
S M
AND
ERVICE ANUAL
10-12.
4-2-3 "Power Shut Down" on
8-87.
Old-type Friction Ring
8-71