Replacing The Power Switch/Led Assembly; Replacing The Cmos Battery - Lenovo ThinkCentre 9120 Hardware Maintenance Manual
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Also See for ThinkCentre 9120:
- Replacement manual (62 pages) ,
- User manual (76 pages) ,
- Benutzerhandbuch (74 pages)
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Replacing the power switch/LED assembly
This procedure describes how to remove and replace the power switch/LED
assembly.
10. Go to "Completing the FRU replacement" on page 110.
Replacing the CMOS battery
This procedure describes how to remove and replace the CMOS battery.
If the CMOS battery fails, the date, time, and configuration information (including
passwords) are lost. An error message is displayed when you turn on the
computer.
CAUTION:
When replacing the lithium battery, use only Part Number 33F8354 or an
equivalent type battery recommended by the manufacturer.
1. Remove the computer cover. See "Removing the cover" on page 87.
2. Locate the battery. See "Locating parts on the system board" on page 89.
3. You might have to remove any PCI adapters that impede access to the battery.
4. Remove the old battery.
5. Install the new battery.
1. Remove the computer cover. See "Removing the cover" on page 87.
2. Remove the front bezel. See "Removing and replacing the front bezel" on
page 89
3. Disconnect the power switch/LED assembly cable from the system board. See
"Locating parts on the system board" on page 89.
4. Note the power switch/LED assembly cable routing and the position of the
two LEDs.
5. Remove the switch and the LEDs from the bezel.
6. Route the cable for the new power switch/LED assembly through the hole in
the chassis and to the system board.
7. Install the new power switch/LED assembly into the bezel. Make sure that the
LEDs are in the correct position.
8. Connect the power switch/LED cable to the system board.
9. Reinstall the front bezel.
Important
Refer to "Safety notices (multi-lingual translations)" on page 7 for information
about replacing and disposing of the battery.
Chapter 8. Replacing FRUs - Tower Computers
109
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