Lenovo ThinkCentre A61 Hardware Maintenance Manual - Page 142
switch/LED
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Replacing the power switch/LED assembly Attention Do not open your computer or attempt any repair before reading and understanding the "Important safety information" in the ThinkCentre Safety and Warranty Guide that came with your computer. To obtain a copy of the ThinkCentre Safety and Warranty Guide, go to: http://www.lenovo.com/support This section provides instructions on how to replace the power switch/LED assembly. To replace the power switch/LED assembly: 1. Remove cover. See "Removing the computer cover" on page 117. 2. Remove the drive bay assembly. See "Accessing the system board components and drives" on page 119. 3. Remove the hard disk drive. See "Replacing the hard disk drive" on page 132. 4. Disconnect the power switch/LED assembly cable from the system board. See "Locating parts on the system board" on page 119. 5. Remove the screw that secures the power switch/LED assembly to the chassis. 6. Note the power switch/LED assembly cable routing and remove the assembly from the chassis. 7. Route the cable for the new power switch/LED assembly through the hole in the chassis and to the system board. 8. Install the power switch/LED assembly into the chassis and secure the assembly with the screw. 9. Connect the power switch/LED cable to the system board. 10. Reinstall the hard disk drive. See "Replacing the hard disk drive" on page 132. 11. Align the drive bay assembly with the two slots and rails on the sides of the chassis slide the drive bay assembly towards the rear of the chassis until it snaps into position. 12. Reinstall the front bezel. 13. Go to "Completing the FRU replacement" on page 140. 136 Hardware Maintenance Manual