Acer Extensa 500 Service Guide

							Chapter 361
Disassembling the Main Unit
Removing the HDD & PCMCIA Heat Sink
1.  Remove the 2 screws from the HDD & PCMCIA heat sink.
2.  Slide the HDD & PCMCIA heat sink out from the upper case, using both 
hands to remove. 
Removing the Hard Disk Drive
1.  Remove the screw from the hard disk module. 
						

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Machine Disassembly 
2.  To detach the hard disk module from the main unit, gently pull up to 
remove.   .
Removing the CPU Heat Sink and CPU Board
1.  Remove the 4 screws of the CPU heat sink, then gently remove the heat 
sink.
2.  First remove the CPU EMI shield, to detach and remove the CPU board 
from the system board. 
						

							Chapter 363
Removing the RTC Battery
1.  Use a flat bladed screw driver to remove the RTC battery from its     
socket. 
Note: 
You can also remove RTC battery when the keyboard and CPU 
heat sink are removed. 
Note: To re-install RTC battery, press the RTC battery into the socket
Disassembling the Upper Case
1.  Disconnect the touchpad cable from the system board at CN19. 
						

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Machine Disassembly 
2.  Remove the 11 screws as shown below. 
3.  Lift up the upper case and disconnect the LCD cover switch from the 
system board at CN7 to detach the upper case from the lower case.
Removing the Touchpad 
1.  Disconnect the touchpad FPC cable from the touchpad board.
2.  Remove the 6 screws of the touchpad bracket. 
						

							Chapter 365
3.  Lift the touchpad bracket, FPC cable and CD-ROM control panel board 
assembly away from the upper case.
4.  To detach the CD-ROM control panel board, first disconnect the touchpad 
FPC cable, then remove the 3 screws to release it. 
5.  Finally, remove the touchpad board from the upper case. 
						

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Machine Disassembly 
Disassembling the Lower Case
1.  Gently remove the speaker nets from the lower case.
Removing the CD-ROM/Diskette Drive Module
1.  Disconnect the diskette drive cable and the CD-ROM drive cable at CN15 
and CN16 of the system board 
2.  Remove this screw from the diskette and CD-ROM/diskette drive Module.
3.  Gently pull up the CD-ROM/diskette drive module from the lower case.   
						

							Chapter 367
Fro CD-ROM/diskette drive module, there are two types of cabling:
IMPORTANT!!  
Before Acer encountered problems, the cabling for the 
diskette drive was originally placed between the bracket of roughly 1000 
pieces.  In order to avoid damaging these cables, Acer then redesigned the 
cabling to go around the bracket instead.  You may have to repair both types.  
In the case of the limited quantity version, you should replace the longer 
cable type and connect the diskette FRC cable to go around the bracket to 
avoid the same mistake. 
Type 1 Cabling (mass-production version): 
1.  Remove the 3 screws located at the CD-ROM/diskette drive module’s 
bracket to separate the CD-ROM drive from the CD-ROM/diskette drive 
module
2.  Remove the 3 screws from the diskette drive
Type 2 Cabling (a limited quantity version):  
						

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Machine Disassembly 
1.  Remove the 3 screws located at the CD-ROM/diskette drive module’s 
bracket.
2.  Separate the CD-ROM drive from the CD-ROM/diskette drive module. 
3.  Remove the 3 screws from the diskette drive. 
4.  This completes the disassembly of the CD-ROM/diskette drive module. 
						

							Chapter 369
Removing the Speakers
1.  Disconnect the left and right channel speaker cables from the audio-I/O     
and battery connection board.
2.  Remove the 4 screws from the left and right speaker channels.
3.  Remove the left and right speakers away from the lower case.
Removing the DC-DC/Charger Board
1.  Disconnect the charger board from CN23.  
						

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Machine Disassembly 
2.  Remove the 2 screws from the audio-I/O and battery connection board 
Removing the DC-DC/Charger Board
1.  Gently pull upward to remove the audio-I/O and battery connection board 
from the system board.
Removing the System Board
1.  Disconnect these 2 screws from the system board.