Chapter 9. Replacing Frus (Machine Types: 0804, 0809, 0811, 0822, 0825, 0828, 0830, 0833, 0837, 0843, 0845, 0847, And 0849.); Locating Connectors, Controls, And Indicators On The Front Of Your Computer - Lenovo ThinkCentre 0804 Hardware Maintenance Manual

Chapter 9. Replacing FRUs (Machine Types: 0804, 0809, 0811,
0822, 0825, 0828, 0830, 0833, 0837, 0843, 0845, 0847, and 0849.)
Important
Be sure to read and understand Chapter 2 "Safety information" on page 3 before you replace any FRU.
These precautions and guidelines will help you work safely.
FRU replacements are to be done only by trained service technicians.
This chapter does not contain the remove or replace procedure for all FRUs. Only the major FRUs are
documented.
Locating connectors, controls, and indicators on the front of your
computer
Front connector, control, and indicator locations shows the locations of the connectors, controls, and
indicators on the front of your computer.
Figure 35. Front connector, control, and indicator locations
1
Optical drive eject/close button
2
Power switch
3
Hard disk drive activity indicator
4
Power indicator
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5
USB connector
6
Microphone connector
7
Headphone connector
8
USB connector
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