Acer Travelmate 740 Service Guide

							Chapter 353
3.Disconnect the touchpad cable
4.Remove the touchpad board.
Removing the CPU
1.See “Removing the Hinge Caps” on page 51
2.See “Removing the Keyboard” on page 51
3.Release the four screws on the heatsink plate.  
4.Remove the heatsink plate.
5.Release the six screws on the CPU heatsink.  
6.Remove the CPU heatsink. 
						

							54Chapter 3
7.Loose up the CPU secure knot.  
8.Remove the CPU.
Removing the RTC
1.See “Removing the Hinge Caps” on page 51
2.See “Removing the Keyboard” on page 51
3.Disconnect the RTC connector from the mainboard.
4.Remove the RTC battery.
NOTE: To replace the RTC battery, press the RTC battery into the socket and re-connect the cable with the 
mainboard. 
						

							Chapter 355
Separating the Lower Case from the Upper Case
1.
See “Removing the Hinge Caps” on page 51
2.
See “Removing the Keyboard” on page 51
3.
See “Removing the CPU” on page 53
4.
Disconnect the touchpad cable from the main board.
5.
Release the six screws from the bottom of the main unit as shown below.
6.
Remove the upper case backward. 
 
7.
Disconnect the LCD cover switch connector from the main board.
8.
Separate the upper case from the lower case.
Removing the Fan
1.
See “Removing the Hinge Caps” on page 51
2.
See “Removing the Keyboard” on page 51
3.
See “Removing the CPU” on page 53
4.
See “Separating the Lower Case from the Upper Case” on page 55
5.
Remove the fan cable from the main board.
6.
Release the two screws.
7.
Remove the fan from the main board. 
						

							56Chapter 3
Removing the DC-DC Charger Board
1.
See “Removing the Hinge Caps” on page 51
2.
See “Removing the Keyboard” on page 51
3.
See “Removing the CPU” on page 53
4.
See “Separating the Lower Case from the Upper Case” on page 55
5.
Release the screw as shown.
6.
Remove the DC-DC charger board from the main board.
Removing the System Board
1.
See “Removing the Hinge Caps” on page 51
2.
See “Removing the Keyboard” on page 51
3.
See “Removing the CPU” on page 53
4.
See “Separating the Lower Case from the Upper Case” on page 55
5.
Remove the four screws on the main board as shown below.
6.
Remove the main board from the lower case with caution. 
						

							Chapter 357
Removing the Audio Jack Cover
1.
See “Removing the Hinge Caps” on page 51
2.
See “Removing the Keyboard” on page 51
3.
See “Removing the CPU” on page 53
4.
See “Separating the Lower Case from the Upper Case” on page 55
5.
See “Removing the System Board” on page 56
6.
Remove the audio jack cover from the main board.
Removing the PCMCIA Socket
1.
See “Removing the Hinge Caps” on page 51
2.
See “Removing the Keyboard” on page 51
3.
See “Removing the CPU” on page 53
4.
See “Separating the Lower Case from the Upper Case” on page 55
5.
See “Removing the System Board” on page 56
6.
From the back of the main board, release the four screws as shown below.
7.
Detach the PCMCIA socket from the main board.
Removing the Modem Power Cable
1.
See “Removing the Hinge Caps” on page 51
2.
See “Removing the Keyboard” on page 51
3.
See “Removing the CPU” on page 53
4.
See “Separating the Lower Case from the Upper Case” on page 55
5.
See “Removing the System Board” on page 56
6.
Disconnect the modem power cable from the main board.
7.
Remove the cable. 
						

							58Chapter 3 
						

							Chapter 359
Disassembling the LCD Module
Removing the LCD Bezel
1.
See “Removing the Hinge Caps” on page 51
2.
See “Removing the Keyboard” on page 51
3.
See “Removing the LCD Module” on page 52
4.
Remove the five mylars from the LCD module.  
NOTE: 
13.3” and 14.1” LCD have 5 mylars; 15” has only 3 mylars.
5.
Remove the five screws from the LCD module.
NOTE: 
13.3” and 14.1” LCD have 5 screws; 15” has only 3 screws.
6.
Snap the LCD bezel off carefully. 
						

							60Chapter 3
Removing the Speaker Assembly Module
1.
See “Removing the Hinge Caps” on page 51
2.
See “Removing the Keyboard” on page 51
3.
See “Removing the LCD Module” on page 52
4.
Turn the LCD module cover.
WARNING:
Be careful not to break the LCD panel.  Place a soft cushion below the LCD panel.
5.
Remove the three mylars and the three screws from the speaker module.
6.
Remove the speaker to LED cable.
7.
Remove the speaker assembly module.
Removing the Inverter Board
1.
See “Removing the Hinge Caps” on page 51
2.
See “Removing the Keyboard” on page 51
3.
See “Removing the LCD Module” on page 52
4.
See “Removing the Speaker Assembly Module” on page 60
5.
Remove the LCD power cable and inverter to LED cable from the inverter.
6.
Remove the two screws as shown below.
7.
Remove the inverter board. 
						

							Chapter 361
Removing the LCD Bracket
1.
See “Removing the Hinge Caps” on page 51
2.
See “Removing the Keyboard” on page 51
3.
See “Removing the LCD Module” on page 52
4.
See “Removing the LCD Bezel” on page 59
5.
Release the four screws as shown below.
6.
Take out the LCD panel from the LCD module carefully.
7.
Release the two screws on the left side of the LCD panel.
8.
Do the same for removing the two screws on the right side of the LCD panel.
9.
Remove the left and right LCD brackets.
Removing the LED Board
1.
See “Removing the Hinge Caps” on page 51
2.
See “Removing the Keyboard” on page 51
3.
See “Removing the LCD Module” on page 52
4.
See “Removing the LCD Bezel” on page 59
5.
Remove the two screws as shown below.
6.
Disconnect the microphone cable. 
						

							62Chapter 3
7.Disconnect the inverter to led cable, and speaker to led cable.
8.Remove the LED board.
Removing the Microphone
1.See “Removing the Hinge Caps” on page 51
2.See “Removing the Keyboard” on page 51
3.See “Removing the LCD Module” on page 52
4.See “Removing the LCD Bezel” on page 59
5.See “Removing the LED Board” on page 61
6.Remove the microphone from the LCD module.
Removing the Left and Right Hinges
1.See “Removing the Hinge Caps” on page 51
2.See “Removing the Keyboard” on page 51
3.See “Removing the LCD Module” on page 52
4.See “Removing the LCD Bezel” on page 59
5.Release the two screws as shown below.
6.Remove the left and right hinges.