Acer Aspire 7730 Service Guide

							Chapter 241
Remove BIOS Password:
If you key in the wrong Supervisor Password three times, System Disabled displays on the screen. See the 
image below.
To reset the BIOS password, run BIOS_PW.EXE as follows:
1.
Key in bios_pw 14452 0
2.Select one string from the list. 
						

							42Chapter 2
3.Reboot the system and key in the selected string (qjjg9vy, 07yqmjd etc.) for the BIOS user 
password. 
						

							Chapter 343
Machine Disassembly and Replacement
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
•Hex 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
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 a flat, stable surface. 
4.Remove the battery pack.
Disassembly Process
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 main board, you must first remove the keyboard, then disassemble the inside assembly 
frame in that order.
Main Screw List 
ScrewQuantityPart Number
M2.5*8 (NL) 15 MA000005YG0
M2.5*5 (NL) 22 MA000007YG0
M2.5*3 (NL) 2 MA000005WG0
M2*3 (NL) 36 MA0000060G0
M2.5*4 (NL) 2 MA0000005G0
M2*6 (NL)  4 MMCK20060G0
M2*4-NI (NL) 5 MACK20040G0
M3*3 (NL) 4 MAAA03032G0
M2*6.5 4 MA0000096G0
M2.5*5.0 2 MA000002NG0
M2.5*6.5 4 MA000006C00 
						

							Chapter 345
External Module Disassembly Process
External Modules Disassembly Flowchart
The flowchart below gives you a graphic representation on the entire disassembly sequence and instructs you 
on the components that need to be removed during servicing. For example, if you want to remove the main 
board, you must first remove the keyboard, then disassemble the inside assembly frame in that order.
Screw List
StepScrewQuantityColorPart No.
Memory Cover M2.5*8 (NL)  4 Black MA000005YG0
HDD Cover M2*6 (NL)  2 Black MMCK20060G0
WLAN Cover M2.5*8 (NL)  4 Black MA000005YG0
WLAN Module M2*3 (NL) 2 Black MA0000060G0
HDD Carrier M3*3 (NL) 4 Silver MAAA03032G0
ODD Module M2.5*5(NL) 1 Black MA000002NG0
ODD Bracket M2*3 (NL) 3 Black MA0000060G0 
						

							46Chapter 3
Removing the Battery Pack
1. Turn computer over. 
2.Slide the battery lock/unlock latch to the unlock position. 
3.Slide and hold the battery release latch to the release position (1), then slide 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 ExpressCard dummy card
1. Push the ExpressCard dummy card all the way in to eject it. 
2.Pull it out from the slot. 
						

							Chapter 349
Removing the Lower Covers
1. See “Removing the Battery Pack” on page 46.
2.See “Removing the Lower Covers” on page 49.
3.See “Removing the Lower Covers” on page 49.
4.Loosen the ten captive screws from the Memory, HDD1, and HDD2 Covers.
   
5.Carefully open the memory cover. 
6.Remove the HDD1 cover as shown. 
HDD2 
Cover Memory 
Cover
HDD1 
Cover 
						

							50Chapter 3
7.Remove the HDD2 cover as shown. 
Removing the DIMM Modules
1. See “Removing the Battery Pack” on page 46.
2.Remove the Memory Module cover. See “Removing the Lower Covers” on page 49.
3.Push out the release latches on both sides of the DIMM socket to release the DIMM module. 
4.Remove the DIMM module. 
5.Repeat steps for the second DIMM module.