Acer Travelmate 2490 Service Guide

							Chapter 363
6.Remove the two screws fastening the system fan. 
7.Take out the system fan from the main unit.
8.Remove the four screws fastening the thermal module.
9.Then detach the thermal module carefully.
10.Use a flat-headed screwdriver to release the CPU lock (Turn anti-clockwise).
11 .Detach the CPU from the CPU socket carefully.
12.Tear off the tape fastening the antenna set.
13.Then remove the antenna protection cover. 
						

							64Chapter 3
14.Remove the screw holding the mini cover.
15.Detach the mini cover from the main unit.
Removing the ODD Module
1.First, remove the screw fastening the ODD module as shown.
2.Push the ODD module outwards then remove it.
Removing the LCD Module
1.Open the LCD module as shown (See the left and the middle picture).
2.Detach the middle cover from the main unit carefully.
3.Remove the screw fastening the keyboard.
4.Then turn over the keyboard as shown. 
						

							Chapter 365
5.Disconnect the keyboard cable from the main board.
6.Turn over the notebook, remove two screws fastening the LCD module on the bottom.
7.Then turn the notebook to the front side. Take out the antenna then disconnect the LCD cable (See the 
middle and the right images).
8.Remove four screws fastening the LCD module (M2.5*10(NL) for yellow circles; M2.5*15(NL) for red 
circles).
9.Then detach the entire LCD module from the main unit carefully. 
						

							66Chapter 3
Disassembling the Main Unit
Separate the Main Unit Into the Upper and the Lower Case Assembly
1.Remove two screws fastening the upper case assembly to the lower case assembly.
2.Disconnect the LED board cable from the main board.
3.Disconnect the touchpad cable from the main board.
4.Remove eight screws fastening the upper case assembly and the lower case assembly on the bottom as 
shown.
5.Detach the upper case assembly carefully.
Disassembling the Upper Case Assembly
6.Remove the two screws fastening the media board.
7.Take out the media board cable from the lower case as shown.
8.Detach the media board from the upper case carefully. 
NOTE: Only Aspire 5650 series have media board.
9.Tear off the mylar on top of the touchpad bracket.
10.Remove the screws holding the touchpad bracket.
11 .Then detach the touchpad bracket from the uppwer case. 
						

							Chapter 367
12.Disconnect the touchpad FFC.
13.Then remove the touchpad FFC from the touchpad.
14.Detach the touchpad from the upper case.
Disassembling the Lower Case Assembly
1.Detach the switch board from the main board.
2.Remove the screw fastening the modem board.
3.Disconnect the modem board from the main board then detach the modem board.
4.Detach the modem cable from the lower case.
5.Disconnect the speaker cable from the main board.
6.Then disconnect the microphone cable from the main baord. 
						

							68Chapter 3
7.Remove the screw fastening the main board to the lower case.
8.Pull the lower case outwards as the image shows and detach the main board from the lower case 
carefully.
9.Take out the microphone from the lower case.
10.Remove the two screws fastening the speaker set.
11 .Take out the speaker from the lower case. 
						

							Chapter 369
Disassembling the LCD Module
1.Remove the four screw caps as shown.
2.Remove the four screws holding the LCD bezel.
3.Then detach the LCD bezel from the LCD module.
4.Remove the screw fastening the LCD inverter.
5.Take out the LCD inverter from the LCD cover, then disconnect the LCD cable from the inverter.
6.Disconnect the LCD power cable on the other side.
7.Remove the two screws fastening the LCD assembly.
8.Take out the LCD assembly from the LCD panel.
9.Tear off the tape fastening the LCD cable.
10.Remove the four screws fastening the LCD right bracket.
11 .Remove the LCD right bracket. 
						

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12.Remove the four screws holding the LCD left bracket.
13.Remove the LCD left bracket. 
						

							Chapter 371
Disassembling the External Modules
Disassembling the HDD Module
1.Remove two screws hodling the HDD bracket on one side.
2.Remove another two screws fastening the HDD bracket on the other side.
3.Detach the HDD from the HDD bracket.
Disassembling the ODD Module
1.Remove the three screws holding the optical bracket.
2.Remove the optical bracket from the optical disk drive. 
						

							72Chapter 3