HP ap5000 Maintenance and Service Guide: HP ap5000 All-In-One Point of Sale Sy - Page 62
Removing and Replacing the Power Supply
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Removing and Replacing the Power Supply 1. Turn off the computer properly through the operating system, then turn off any external devices. 2. Disconnect the power cord from the power outlet. CAUTION: Regardless of the power-on state, voltage is always present on the system board as long as the system is plugged into an active AC outlet. You must disconnect the power cord to avoid damage to the internal components of the computer. 3. Tilt the touch screen all the way back to its horizontal position and lay the unit face down on a soft, clean, dry cloth to avoid scratching the touch screen. 4. Remove the bottom I/O cover (see Removing the Bottom I/O Cover on page 42). 5. Unplug the power cord from the connector on the I/O panel. 6. Loosen the thumbscrew that secures the power supply bracket to the bottom of the unit (1), then slide the bracket to the side and lift the bracket off the unit (2). NOTE: The power supply bracket screw is captive, therefore it does not disengage from the bracket when loosened. Figure 7-19 Removing the Power Supply Bracket 54 Chapter 7 Removal and Replacement Procedures