Table Of Contents - Lenovo IdeaCentre C240 Hardware Maintenance Manual

Contents
Chapter 1. About this manual . . . . . . 1
Important Safety Information . . . . . . . . . .
Chapter 2. Safety information . . . . . . 3
General safety . . . . . . . . . . . . . . . .
Electrical safety . . . . . . . . . . . . . . .
Safety inspection guide . . . . . . . . . . . .
Handling electrostatic discharge-sensitive
devices . . . . . . . . . . . . . . . . . .
Grounding requirements . . . . . . . . . . . .
Safety notices . . . . . . . . . . . . . . . .
Chapter 3. General information . . . . . 9
Specifications . . . . . . . . . . . . . . . .
Chapter 4. General Checkout . . . . . 11
Chapter 5. Using the Setup Utility. . . 13
Starting the Lenovo BIOS Setup Utility program
Viewing and changing settings . . . . . . . .
Using passwords. . . . . . . . . . . . . .
Enabling or disabling a device
Selecting a startup device . . . . . . . . . .
Changing booting mode . . . . . . . . . . .
Exiting the Lenovo BIOS Setup Utility program . .
Chapter 6. Symptom-to-FRU Index . . 19
Hard disk drive boot error . . . . . . . . . .
Power Supply Problems . . . . . . . . . . .
POST error codes . . . . . . . . . . . . .
Undetermined problems . . . . . . . . . . .
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Chapter 7. Locating connectors,
controls and components . . . . . . 21
Chapter 8. Replacing hardware . . . . 27
General information . . . . . . . . . . . . .
Replacing the keyboard and mouse . . . . . .
Replacing the optical drive . . . . . . . . . .
Replacing the power adapter . . . . . . . . .
Removing the rear cover . . . . . . . . . . .
Replacing a memory module . . . . . . . . .
Replacing the hard disk drive . . . . . . . . .
Replacing the heat-sink . . . . . . . . . . .
Replacing the system fan . . . . . . . . . .
Replacing the Wi-Fi card. . . . . . . . . . .
Replacing the speaker system . . . . . . . .
Replacing the front indicator board. . . . . . .
Replacing the power switch board . . . . . . .
Replacing the motherboard. . . . . . . . . .
Replacing the computer stand . . . . . . . .
Replacing the camera . . . . . . . . . . . .
Replacing the converter board . . . . . . . .
Replacing the LED panel. . . . . . . . . . .
Chapter 9. FRU lists-C240-245 . . . . 47
Chapter 10. FRU lists-C255 . . . . . . 51
Chapter 11. Additional Service
Information . . . . . . . . . . . . . . 57
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