How to replace the System Board for
Before You Begin
- If the unit contains heated components, wait until the components have cooled off before proceeding.
- Put on your electrostatic discharge (ESD) wrist or shoe strap to avoid damaging any circuitry.
- Place an ESD mat on a suitably grounded surface, and then place the unit on the mat.
- Remove any devices from the unit being serviced, such as CD-ROMs, SD Memory Card …etc.
- Power off the unit and any peripheral devices that are connected to it.
- Disconnect the power cord from the electrical outlet and then from the unit.
- When a unit is plugged into an AC power source, voltage is always applied to the unit.
- You must, therefore disconnect the power cord from the power source before opening the unit.
- Disconnect all peripheral device cables from the unit.
Ensure that you have the tools you need before you begin. These should include:
- Small, Phillips-head (P1 and P0) screwdriver
- Small, flat-bladed screwdriver or a flat-bladed alignment tool
- Electrostatic discharge (ESD) wrist or shoe strap
- Smooth jaw, bent-tipped needle-nose pliers (optional)
- Small, smooth-tipped needle-nose pliers (optional)
- Flashlight (optional)
- If worn or damaged screwdriver tips are used, the small screw heads could become stripped.
- Ensure that you take the following precautions when disassembling a unit
- Label each cable as you remove it, noting its position and routing. This will make replacing the cables much easier and will ensure that the cables are rerouted properly.
- Keep all screws with the component removed, if applicable. The screws used in each component can be of different thread sizes and lengths. Using the wrong screw in a component could damage the unit.
- If the unit contains light-sensitive components such as toner cartridges, store the component in its original packaging or in a dark location to avoid damage.