Acer Travelmate 550 Service Guide

Chapter 353
Disassembly Procedure Flowchart
The flowchart on the succeeding page 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 system board, you must first remove the keyboard, then disassemble the inside assembly frame in 
that order.
Start
BatteryHDD ModuleRAM DoorMain Unit
(see next
page)
HDD
Connector
HDD
Stripe Cover
Thermal
ModuleRAM
ModuleDVD-
ROM
System
W...

54Chapter 3
  
Screw List
ItemDescription
A Screw M2.5 X 0.45+8FD-ZK
B Screw M2.5 X 4.5P+3FP-ZK
C Screw M2.5 X 0.45P+4FP-NI(NL)
D Screw M2.5 X 0.45+8FP-NI(NL)
E Screw M2.5 X 0.45+18FP-ZK(NL)
F Screw M2.5 X 0.45P+5K-2K(NL)
G Screw M2.0 X 0.4P+2.3(NL)
H Screw M2.0 X 0.4P+3FP-ZK(NL)
Main Unit
Stripe CoverLogic UpperLogic Lower
(below)
Keyboard
FFCSystem
W indow
FFCLCD Module
System
W indowKeyboard
Right/Left
Hinge
Saddles
SpeakersAudio Board
FPC
Audio Board
Module
Audio Board
Shielding
Audio Board
Upper...

Chapter 355
Removing the Battery Pack
1.Press the battery lock.
2.Push the release button forward then remove the battery pack.
 
  

56Chapter 3
Removing the HDD Module/Thermal Module/CPU and DVD-ROM
1.Remove the two screws of the HDD module, then remove the HDD module from the logic lower.
2.Unscrew the three screws on the ram door. Then remove the ram door. Next, disconnect the thermal 
connector. Then, remove the four screws on the thermal module and remove the thermal module. 
   
 
3.Use the CPU fixture and the flat-bladed screw driver to remove the CPU.
4.Remove the screw on the DVD-ROM bracket and push the DVD-ROM bracket. Then...

Chapter 357
Removing the LCD Module/the Keyboard and the System Window
Removing the LCD Module
1.Remove the two (one on each side) screws holding the LCD stripe cover. Then prize the stripe cover with 
the plastic flat-bladed tool.
2.Unscrew the four screws (two on each side) holding the LCD module to the main unit. Then, Disconnect 
LCD FPC and remove the LCD module.
Removing the keyboard
1.Remove the four (two on each side) screws holding the keyboard. 
2.Disconnect the keyboard connector. After...

58Chapter 3
Disassembling the Main Unit
Separate the main unit into the logic upper and the logic lower assembly
1.Remove the four screw locks from I/O port.
2.Then remove the two screws as the picture shows.
3.Remove the eight screws on the logic lower.
4.Disconnect switch board FPC.
5.Remove the logic upper from the main unit.
Disassembling the logic upper
1.Unscrew the five screws holding the right and the left hinge saddles.
2.Remove the right and the left hinge saddles.
3.Tear the mylar from logic...

Chapter 359
.
7.Remove the four screws holding the upper shielding.
8.Release the two locks.
9.Then remove the upper shielding from the logic upper assembly.
10.Disconnect the two speakers wires (one on each side).
11 .Remove the two screws holding the speakers on each side. Then remove the speakers. 
 .
12.Disconnect touchpad FFC from the touch pad.
13.Remove the touchpad bracket as the pictures show. Please see the yellow arrows.
14.Remove the touchpad.
15.Disconnect the touchpad FFC and then remove it. 

60Chapter 3
16.Remove the two screws that hold switchboard on the logic upper. One is on the right; the other is on the 
left.
17.Disconnect the audio board FPC from the switchboard.
18.Disconnect the switchboard FPC.
19.These are complete steps for logic upper disassembly.
Disassembling the logic lower
1.Remove the two screws holding the floppy disk drive bracket.
2.Disconnect the floppy disk drive FFC.
3.Disconnect the system window FPC.
4.Remove the two screws holding the mainboard.
5.Then remove the...

Chapter 361
6.Unscrew the three screws that holds the DVD-ROM bracket.
7.Remove the DVD-ROM bracket.
8.Remove the four screws holding the thermal support.
9.Remove the thermal support.
10.Tear the tape on LAN/Modem card.
11 .Disconnect the LAN/Modem card from mini PCD.
12.Disconnect LAN/Modem wires from the LAN/Modem card.
13.These are complete steps for logic lower disassembly. 

62Chapter 3
Disassembling the LCD Module-15 Inch
1.First remove the two screw pads then remove the two screws.
2.Disattach the LCD bezel carefully. Please note that you have to push forward at the two indentations.
3.Unscrew the two screws then remove the latch.
4.Unscrew the two screws on the inverter board.
5.Remove the four screws holding the right and left hinges. There are two screws on each side.
6.Remove the right and the left hinge.
7.Dettach the EMI tape and then remove LCD from the cover...