Lenovo ThinkStation 4262, Maintenance Manual, Page: 75 / 242

Chapter 9. Replacing FRUs
This chapter provides step-by-step instructions for replacing major FRUs.
Important
Be sure to read and understand the Chapter 2 “Safety information” on page 3 before replacing any FRU.
These precautions and guidelines will help you work safely.
FRU replacements are to be done only by trained service technicians.
Locations
Locating controls and connectors on the front of your computer
Front control and connector locations shows the locations of the controls and connectors on the front
of your computer.
Figure 1. Front control and connector locations
1
Hard disk drive activity indicator
5
Headphone connector
2
Power switch and power indicator
6
USB connector
3
USB connector
7
IEEE 1394 connector (available on some models)
4
Microphone connector
8
Optical drive eject button
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