Acer Travelmate 270 Service Guide

66Chapter 3
5.Disconnect the phone jack FFC from the audio board. Then remove the audio board.
6.Disconnect the audio board FFC from the audio board.
7.Disattach the touchpad cover latch.
8.Turn over the upper case and disattach the touchpad cover from the upper case.
9.Remove the touchpad.
10.Disconnect the touchpad FFC.
11.Unscrew the screws holding the speakers; one on each side.
12.Remove the two screws that holds the wireless card antenna line; two on each side.
13.Unscrew the two screws that secure...

Chapter 367
Disassembling the logic lower
1.Tear off the mylar that fastens the wireless care power cable.
2.Diconnect teh wireless card power cable and remove it from the main board.
3.Unscrew the three screws that secures main board to the lower case.
4.Remove the six nuts with nut screwdriver. two screws that secure the main board.
5.Then take out the main board from the lower case..
6.Remove the four screws holding the optical drive bracket then remove it from the main board.
7.Remove the four screws...

68Chapter 3
Disassembling the LCD Module
1.Remove the two screwpad then unscrew the two screws on the LCD bezel. One on each side.
2.Disattach the LCD bezel from the upper side of the LCD module carefully..
3.Unscrew the screw that holds the LCD inverter.
4.Disconnect the LCD wire set and LCD power cable from the LCD inverter.
5.Remove the eight screws that secure the LCD to LCD panel; four on each side. 
6.Remove the LCD from the LCD panel.
7.Remove the six screws holding the right and the left LCD...

Chapter 369
Disassembling the External Modules
Disassembling the HDD Module
1.Remove the four (two on each side) screws on HDD carrier. 
2.Remove the HDD EMI shielding and take out the HDD from the carrier.
3.Disconnect the hard disk drive connector.
Disassembling the Floppy Disk Drive Module
1.Remove the four screws (two on each side) that secure the FDD to the FDD bracket. Then remove the 
FDD from the FDD bracket.
2.Disconnect FDD FFC.
3.Use a tool (a tip of a pen or an uncurved  paper clipper) to...

70Chapter 3 

Chapter 471
Use the following procedure as a guide for computer problems.
NOTE: The diagnostic tests are intended to test this model (TravelMate 270 series).  Non-Acer products, 
prototype cards, or modified options can give false errors and invalid system responses.
1.Obtain the failed symptoms in as much detail as possible.
2.Verify the symptoms by attempting to re-create the failure by running the diagnostic test or by repeating 
the same operation.
3.If any problem occurs, you can perform visual...

72Chapter 4
System Check Procedures
External Diskette Drive Check
Do the following steps to isolate the problem to a controller, driver, or diskette. A write-enabled, diagnostic 
diskette is required.
NOTE: Make sure that the diskette does not have more than one label attached to it. Multiple labels can cause 
damage to the drive or cause the drive to fail. 
Do the following to select the test device. See “System Diagnostic Diskette” on page 49 for details.
1.The FDD heads can become dirty over time,...

Chapter 473
Keyboard or Auxiliary Input Device Check
Remove the external keyboard if the internal keyboard is to be tested.
If the internal keyboard does not work or an unexpected character appears, make sure that the flexible cable 
extending from the keyboard is correctly seated in the connector on the main board.
If the keyboard cable connection is correct, run the Keyboard Test. See “System Diagnostic Diskette” on page 
49 for more details.
If the tests detect a keyboard problem, do the following one...

74Chapter 4
Check the Power Adapter
Unplug the power adapter cable from the computer and measure the output voltage at the plug of the power 
adapter cable. See the following figure
1.If the voltage is not correct, replace the power adapter.
2.If the voltage is within the range, do the following:
Replace the main board.
If the problem is not corrected, see “Undetermined Problems” on page 84.
If the voltage is not correct, go to the next step.
NOTE: An audible noise from the power adapter does not always...

Chapter 475
Check the Battery Pack
To check the battery pack, do the following:
From Software:
1.Check out the Power Options in control Panel
2.In Power Meter, confirm that if the parameters shown in the screen for Current Power Source and Total 
Battery Power Remaining are correct.
3.Repeat the steps 1 and 2, for both battery and adapter.
4.This helps you identify first the problem is on recharging or discharging.
From Hardware:
1.Power off the computer. 
2.Remove the battery pack and measure the...