Acer Aspire Z5710 Service Guide - Page 50

Chapter 3 Machine Disassembly and Replacement WARNING:This computer has two highly sensitive touchscreen sensors on the top left and right corners of the LCD. The sensors are an integral part of the LCD and cannot be separately replaced. 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 on the 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 and troubleshooting. Disassembly Requirements To 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 the screws with the corresponding components to avoid mismatch when putting back the components. General Information Pre-disassembly Instructions Before 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 List Screw Quantity Part Number M2.5*4.0-I(NYLOK)IRON 6 86.G8507.001 M2.5*4.0-I(NI)(NYLOK)IRON 26 86.G8507.002 M2.5*7.0-I(B) (NYLOK)IRON 4 86.G8507.003 M4.0*6-I(NI,NYLOK) 4 86.G8507.004 Chapter 3 40