Acer Aspire 5540 Service Guide

							Chapter 355
9.Remove the four screws fastening the HDD module.
10.Then detach the HDD module carefully.
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.Detach the middle cover from the main uiit carefully.
2.Disconnect the launch board FFC from the launch board. 
						

							56Chapter 3
3.Remove the middle cover (with launch board and microphone) from the main unit.
4.Disconnect the microphone cable from the launch board.
5.Take out the microphone from the middle cover.
6.Remove the two screws fastening the launch board.
7.Then remove the launch board from the middle cover.
.
8.Remove the screw holding the keyboard.
9.Turn over the keyboard as shown.
10.Disconnect the keyboard cable.
11 .Remove the keyboard from the main unit.
12.Tear off the tapes fastening the wireless antenna cable. 
						

							Chapter 357
13.Pull the antenna set from the main unit.
14.Disconnect the LCD cable.
15.Turn over the notebook then remove two screws fastening the LCD module.
16.Remove two screws fastening the LCD hinges.
17.Then detach the LCD module from the main unit. 
						

							58Chapter 3
Disassembling the Main Unit
Separate the Main Unit Into the Upper and the Lower Case Assembly
1.Disconnect the touchpad cable and the LED FFC from the main board.
2.Remove the 15 screws on the bottom as shown.
3.Detach the upper case assembly from the lower case assembly carefully.
Disassembling the Lower Case Assembly
4.Turn over the lower case assembly to the bottom side, then disconnect the fan cable.
5.Turn over the lower case assemlby to the fron side, then detach the bluetooth module.
6.Disconnect the Bluetooth cable from the main board.
7.Disconnect the Bluetooth cable from the Bluetooth module as shown.
8.Disconnect the speaker set cable from the main board.
9.Remove the four screws fastening the main board to the lower case.
10.Detach the main board from the lower case carefully. 
						

							Chapter 359
11 .Remove the two screws holding the speaker set.
12.Take out the speaker set from the lower case.
13.Remove the three screws fastening the system fan.
14.Detach the fan from the lower case.
15.Disconnect the RTC battery cable then detach the RTC battery.
16.Disconnect the launch board FFC from the main board.
17.Disconnect the modem cable from the main board.
18.Disconnect the modem board from the main board.
19.Disconnect the modem cable from the modem board as shown. 
						

							60Chapter 3
20.Remove the five screws fastening the heatsink.
21.Remove the heatsink from the main board.
22.Use a flat-headed screwdriver to release the CPU socket lock.
23.Remove the CPU from the CPU socket carefully.
Disassembling the Upper Case Assembly
1.Remove the two screws fastening the LED board.
2.The remove the LED board from the upper case assembly carefully.
3.Disconnect the LED board FFC from the LED board.
4.Disconnect the touchpad FFC then remove it. 
						

							Chapter 361
5.Remove the four screws fastening the touchpad bracket.
6.Remove the touchpad bracket (with touchpad).
7.Detach the touchpad from the touchpad bracke.t 
						

							62Chapter 3
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 two screws fastening the LCD inverter.
5.Take out the LCD inverter from the LCD cover, then disconnect the LCD cable from the inverter.
6.Remove the two screws holding the LCD to the LCD panel.
7.Remove the LCD assembly from the LCD panel as shown.
8.Remove the two screws fastening the wireless antenna set.
9.Detach the wireless antenna set from the LCD panel on one side.
10.Detach the wireless antenna set on the other side.
11 .Remove the two screws fastening the LCD hinges.
12.Then remove the LCD hinges from the LCD panel. 
						

							Chapter 363
13.Tear off the tape fastening the LCD cable.
14.Disconnect the LCD cable from the LCD.
15.Tear off another tape holding the LCD cable.
16.Remove the four screws fastening the LCD right bracket.
17.Remove the right bracket from the LCD.
18.Remove the four screws fastening the LCD left bracket.
19.Remove the left bracket from the LCD. 
						

							64Chapter 3
Disassembling the LCD Module (with video camera) 
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 two screws fastening the LCD inverter.
5.Take out the LCD inverter from the LCD cover, then disconnect the LCD cable from the inverter.
6.Remove the two screws holding the digital camera to the LCD panel.
7.Detach the CCD panel from the CCD bezel assembly. 
8.Disconnect digital camera to LCD cable as shown.
9.Remove the two screws fastening the CCD.
10.Take out the CCD from the CCD bezel.
11 .Then remove the CCD hinge from the CCD bezel.
12.Slide the CCD latch to the right to remove the CCD latch.
NOTE: The edges of the CCD latch is very fragile, please practice this step very carefully.