Acer Aspire 7315 Service Guide

							Chapter 241
Using the LAN MAC EEPROM Utility
You can use the MAC.BAT utility to write the MAC.CFG file to the EEPROM under DOS mode.
1.Use a text editor (for example: Notepad) to open the MAC.CFG file. You can see the MAC.CFG contents 
as below:
2.In DOS mode, run the MAC.BAT file to write MAC values to eeprom. WriteData = ‘001122334455 MAC value
StartAddr=7A MAC address
WriteLeng=6 MAC value length
KeepByte=0 don’t care 
						

							42Chapter 2 
						

							Chapter 343
Machine Disassembly and Replacement
IMPORTANT: The outside housing and color may vary from the mass produced model.
This chapter contains step-by-step procedures on how to disassemble the notebook 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
•Philips screwdriver
•Plastic flat screwdriver
•Plastic tweezers
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.
Chapter 3 
						

							44Chapter 3
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 a flat, stable surface. 
4.Remove the battery pack.
Disassembly Process
IMPORTANT: The LCD Module cannot be disassembled outside of factory conditions. If any part of the LCD 
Module is faulty, such as the camera, antenna or LCD panel, the whole module must be replaced. 
The disassembly process is divided into the following stages:
•External module disassembly
•Main unit disassembly
•LCD module disassembly
The flowcharts provided in the succeeding disassembly sections illustrate the entire disassembly sequence. 
Observe the order of the sequence to avoid damage to any of the hardware components. For example, if you 
want to remove the mainboard, you must first remove the keyboard, then disassemble the inside assembly 
frame in that order.
Main Screw List 
ScrewQuantityPart Number
SCREW M2.48D 4.0L K 5.5D 0.8T ZKNL 1 86.N2802.001
SCREW M2.48D 6.0L K 5.5D 0.8T ZKNL 6 86.N2802.002
SCREW M2.45D 8.0L K 5.5D 0.8T ZKNL 30 86.N2802.003
SCREW M1.98D 3.0L K 4.6D 0.8T ZKNL 4 86.N2802.004
SCREW M M 3.0D 3.0L K 4.9D NI + 4 86.N2802.005
SCREW M M 2.5D 3.2L K 6D NI + 17 86.N2802.006 
						

							Chapter 345
External Module Disassembly Process
IMPORTANT: The outside housing and color may vary from the mass produced model.
External Modules Disassembly Flowchart
The flowchart below gives you a graphic representation of the external module disassembly sequence and 
instructs you on the components that need to be removed during servicing. For example, if you want to remove 
the keyboard, you must first remove the switch board.
Screw List
StepScrewQuantityPart No.
Lower Covers M2.5*8 3 86.N2802.003
ODD Module M2.5*8 1 86.N2802.003
WLAN Module M2*3 2 86.N2802.006
HDD Carrier M3*3 4 86.N2802.005
Disconnect pow er
and signal cables
from system
Rem ove
Battery
Turn off system
and peripherals
pow er
Rem ove
DIMMsRem ove
WLANRem ove
HDD
Rem ove
ODDRem ove
Lower CoversRem ove
Dummy Card 
						

							46Chapter 3
Removing the Battery Pack
1.Turn computer over. Slide the battery lock in the direction shown.
2.Slide and hold the battery release latch to the release position (1), then lift out the battery pack from the main 
unit (2).
1
2 
						

							Chapter 347
Removing the SD Dummy Card
1.Push the SD dummy card all the way in to eject it.
2.Pull it out from the slot. 
						

							48Chapter 3
Removing the Lower Covers
1.See “Removing the Battery Pack” on page 46.
2.Remove the three screws securing the Memory and HDD Covers.
3.Remove the HDD cover as shown. 
4.Carefully open the Memory Cover. 
StepSizeQuantityScrew Type
Lower Covers M2.5*8 3
Memory 
CoverHDD 
Cover 
						

							Chapter 349
Removing the Optical Drive Module
1.See “Removing the Battery Pack” on page 46.
2.Remove the screw securing the ODD module.
3.Insert a suitable tool into the access slot in the battery bay as shown. Gently lever the ODD module out of the 
chassis.
4.Pull the optical drive module out from the chassis. 
StepSizeQuantityScrew Type
ODD Module M2.5*8 1 
						

							50Chapter 3
5.Remove the two screws securing the ODD bracket and remove the ODD bracket from the optical disk drive 
module.
6.Remove the ODD bezel by rotating the top edge downward and pulling it clear of the module.
StepSizeQuantityScrew Type
ODD Bracket M2*3 2