4
Removal and Replacement Procedures
After completing all necessary removal and replacement procedures, run the Diagnostics utility to verify that all components operate properly.
ÄCAUTION: When the computer is plugged into an AC power source, there is always voltage applied to the system board. You must disconnect the power cord from the power source before opening the computer to prevent system board or component damage.
4.1Preparation for Disassembly
See Chapter 3, “Removal and Replacement Preliminaries and Routine Care,” for initial procedures.
To prepare the computer for disassembly:
1.Remove any diskette or compact disc from the computer.
2.Unlock the computer Smart Cover Lock using Computer Setup. Turn off the computer and any peripheral devices that are connected to it.
ÄCAUTION: Turn off the computer before disconnecting any cables.
ÄCAUTION: When the computer is plugged into an AC power source, there is always voltage applied to the system board. You must disconnect the power cord from the power source before opening the computer to prevent system board or component damage.
3.Disconnect the power cord from the electrical outlet and then from the computer.
4.Disconnect all peripheral device cables from the computer.
✎During disassembly, label each cable as you remove it, noting its position and routing. Keep all screws with the units removed.
ÄCAUTION: The screws used in the computer are of different thread sizes and lengths; using the wrong screw in a component may damage the unit.
| Compaq Prosignia Desktop 340 Series Computer |
