HP 400 manual Electrostatic discharge, Required tools

TIP: For clarity, some photos in this chapter show components removed that would not be removed to service the product. If necessary, remove the components listed at the beginning of a procedure before proceeding to service the product.

Electrostatic discharge

CAUTION: Some parts are sensitive to electrostatic discharge (ESD). Look for the ESD reminder

when removing product parts. Always perform service work at an ESD-protected workstation or mat, or use an ESD strap. If an ESD workstation, mat, or strap is not available, ground yourself by touching the sheet-metal chassis before touching an ESD-sensitive part.

Protect the ESD-sensitive parts by placing them in ESD pouches when they are out of the product.

Required tools

●Number 2 Phillips screwdriver with a magnetic tip and a 152-mm (6-inch) shaft length

●Precision slotted screwdriver with a 1 mm (0.04 in) blade width

NOTE: This fine-point tool is required to release the front door pins. The width of the blade must be 2 mm (0.08 in) or less to be able to drive the door pins out of the mounting holes.

●Small, slotted screwdriver

●Needle-nose pliers

●Snap-ring pliers

●ESD mat (if one is available)

●Penlight (optional)

CAUTION: Always use a Phillips screwdriver (callout 1). Do not use a pozidrive screwdriver (callout 2) or any motorized screwdriver. These can damage screws or screw threads.

Figure 1-1Phillips and pozidrive screwdriver comparison

ENWW Removal and replacement strategy 3