Required tools ● #2 Phillips screwdriver with a magnetic tip and a 152 mm (6 in) shaft length ● Small flatblade screwdriver ● Needle-nose pliers ● ESD mat (if one is available) or ESD strap ● Penlight (optional) CAUTION: Always use a Phillips screwdriver (callout 1). Do not use a Pozidriv® screwdriver (callout 2) or any motorized screwdriver. These can damage screws or screw threads. Figure 1-1 Phillips and Pozidriv screwdriver comparison CAUTION: Avoid pulling directly on wires to disconnect wire-harness connectors. Pull on the plastic body of a connector to avoid damaging the connector wires. Types of screws WARNING! Make sure that components are replaced with the correct screw type.
Using the incorrect screw (for example, substituting a long screw for the correct shorter screw) can cause damage to the product or interfere with product operation. Do not intermix screws that are removed from one component with the screws that are removed from another component. For a complete list of screw types and part numbers, see the Parts chapter. Service approach Before performing service ● Remove all paper from the product. ● Turn off the power using the power switch. ● Unplug the power cable and interface cable or cables. ● Place the product on an ESD workstation or mat, or use an ESD strap (if one is available).
If an ESD workstation, mat, or strap is not available, ground yourself by touching the sheet-metal chassis before touching an ESD-sensitive part. ENWW Service approach 3