Chapter 3 38Machine Disassembly and ReplacementWARNING:This computer has two highly sensitive touchscreen sensors on the top left and rightcorners of the LCD. The sensors are an integral part of the LCD and cannot be separatelyreplaced. The sensors are exposed as soon as the rear cover is removed.During disassembly:• DO NOT make contact with the sensors.• Raise the LCD off any surface it is placed face down on so that the sensors do not rest onthe surface.• ALWAYS employ an antistatic mat.IMPORTANT:The outside housing and color may vary from the images that appear in this section.This chapter contains step-by-step procedures on how to disassemble the computer for maintenance andtroubleshooting.Disassembly RequirementsTo disassemble the computer, you need the following tools:• Wrist grounding strap and conductive mat for preventing electrostatic discharge• Flat screwdriver• Three (3) sizes of Philips screwdrivers: 7mm, 4mm and 2mm• Pin or unbent paperclip or similar.• Block of sponge or similar soft material smaller in surface area than the LCD and at least 1”(2.5cm) high.NOTE: The screws for the different components vary in size. During the disassembly process, group thescrews with the corresponding components to avoid mismatch when putting back the components.General InformationPre-disassembly InstructionsBefore proceeding with the disassembly procedure, make sure that you do the following:1. Turn off the power to the system and all peripherals.2. Unplug the AC adapter and all power and signal cables from the system.3. Place the system on an antistatic mat.The flowchart provided in the succeeding disassembly section illustrates the entire disassembly sequence.Observe the order of the sequence to avoid damage to any of the hardware components.Main Screw ListScrew Quantity Part NumberM2.5*4.0-I(NYLOK)IRON 6 86.G8507.001M2.5*4.0-I(NI)(NYLOK)IRON 26 86.G8507.002M2.5*7.0-I(B) (NYLOK)IRON 4 86.G8507.003M4.0*6-I(NI,NYLOK) 4 86.G8507.004Chapter 3Laptopblue
