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Replacing the power supply assembly
Attention: Do not open your computer or attempt any repairs before reading the Important Product
Information Guide.
Although there are no moving parts in your computer after the power cord has been disconnected, the
following warnings are required for your safety and proper Underwriters Laboratories (UL) certification.
CAUTION:
Hazardous moving parts. Keep fingers and other body parts away.
CAUTION:
Never remove the cover on a power supply or any part that has the following label attached.
Hazardous voltage, current, and energy levels are present inside any component that has this label
attached. There are no serviceable parts inside these components. If you suspect a problem with one
of these parts, contact a service technician.
1. Remove the computer cover. See "Removing the computer cover" on page 23.
2. Remove the front bezel. See "Replacing the front bezel" on page 23.
3. Disconnect the power supply assembly cables from the system board.
4. Replace the power supply assembly.
46
ThinkCentre M720t User Guide and Hardware Maintenance Manual
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