After you finish
•  Install a replacement unit. See “Install the external LCD diagnostics handset” on page 141.
•  If you are instructed to return the component or optional device, follow all packaging instructions, and use 
any packaging materials for shipping that are supplied to you.
Install the external LCD diagnostics handset
Follow instructions in this section to install the external LCD diagnostics handset.
About this task
To avoid possible danger, read and follow the following safety statement. 
•  S014 
CAUTION: 
Hazardous voltage, current, and energy levels might be present. Only a qualified service technician 
is authorized to remove the covers where the label is attached. 
•  S017 
CAUTION: 
Hazardous moving fan blades nearby. Keep fingers and other body parts away.
•  S033 
Chapter 4. Hardware replacement procedures 141