Acer Travelmate 7720 Service Guide

							Chapter 391
20.Disconnect the USB cable from the main board. 
21.Disconnect the Bluetooth cable from the BLUE1 connector on the main board. 
22.Disconnect the speaker cable from the SPKR1 on the main board. 
23.Remove the four screws (C) holding the main board. 
StepSize (Quantity)ColorTo r q u e
1~4 M2 x L4 (4) Silver 1.6 kgf-cm
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							92Chapter 3
24.Carefully remove the main board from the bottom panel. 
Removing the ODD Board Module
1.See “Removing the Battery Pack” on page 62.
2.See “Removing the SD dummy card” on page 63.
3.See “Removing the PC and ExpressCard dummy cards” on page 63.
4.See “Removing the Lower Cover” on page 64.
5.See “Removing the Secondary HDD Cover” on page 65.
6.See “Removing the Secondary HDD Bracket and Connector” on page 66.
7.See “Removing the DIMM” on page 68.
8.See “Removing the WLAN Board Modules” on page 68.
9.See “Removing the Hard Disk Drive Module” on page 69.
10.See “Removing the Optical Drive Module” on page 70.
11 .See “Removing the Modem Board” on page 73.
12.See “Removing the Heatsink Fan Module” on page 74.
13.See “Removing the CPU and VGA Heatsink Module” on page 75.
14.See “Removing the CPU” on page 77.
15.See “Removing the VGA board (for Discrete model only)” on page 77.
16.See “Removing the Middle Cover and the Power Board” on page 78.
17.See “Removing the Keyboard” on page 80.
18.See “Removing the LCD Module” on page 81.
19.See “Separating the Upper Case from the Lower Case” on page 84.
20.See “Removing the Main Board” on page 90.
21.Detach the ODD board module from the main board. 
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							Chapter 393
Removing the Speaker Modules
1.See “Removing the Battery Pack” on page 62.
2.See “Removing the SD dummy card” on page 63.
3.See “Removing the PC and ExpressCard dummy cards” on page 63.
4.See “Removing the Lower Cover” on page 64.
5.See “Removing the Secondary HDD Cover” on page 65.
6.See “Removing the Secondary HDD Bracket and Connector” on page 66.
7.See “Removing the DIMM” on page 68.
8.See “Removing the WLAN Board Modules” on page 68.
9.See “Removing the Hard Disk Drive Module” on page 69.
10.See “Removing the Optical Drive Module” on page 70.
11 .See “Removing the Modem Board” on page 73.
12.See “Removing the Heatsink Fan Module” on page 74.
13.See “Removing the CPU and VGA Heatsink Module” on page 75.
14.See “Removing the CPU” on page 77.
15.See “Removing the VGA board (for Discrete model only)” on page 77.
16.See “Removing the Middle Cover and the Power Board” on page 78.
17.See “Removing the Keyboard” on page 80.
18.See “Removing the LCD Module” on page 81.
19.See “Separating the Upper Case from the Lower Case” on page 84.
20.See “Removing the Main Board” on page 90.
21.Remove the tape securing the speaker cables in place. 
22.Release the speaker cables from the latches. 
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							94Chapter 3
23.Remove the four screws (C) holding the left and right speakers.    
24.Remove the left and right speakers from the upper case. 
Removing the USB Board
1.See “Removing the Battery Pack” on page 62.
2.See “Removing the SD dummy card” on page 63.
3.See “Removing the PC and ExpressCard dummy cards” on page 63.
4.See “Removing the Lower Cover” on page 64.
5.See “Removing the Secondary HDD Cover” on page 65.
6.See “Removing the Secondary HDD Bracket and Connector” on page 66.
7.See “Removing the DIMM” on page 68.
8.See “Removing the WLAN Board Modules” on page 68.
9.See “Removing the Hard Disk Drive Module” on page 69.
10.See “Removing the Optical Drive Module” on page 70.
11 .See “Removing the Modem Board” on page 73.
12.See “Removing the Heatsink Fan Module” on page 74.
13.See “Removing the CPU and VGA Heatsink Module” on page 75.
14.See “Removing the CPU” on page 77.
15.See “Removing the VGA board (for Discrete model only)” on page 77.
16.See “Removing the Middle Cover and the Power Board” on page 78.
17.See “Removing the Keyboard” on page 80.
18.See “Removing the LCD Module” on page 81.
19.See “Separating the Upper Case from the Lower Case” on page 84.
20.See “Removing the Main Board” on page 90.
StepSize (Quantity)ColorTo r q u e
1~4 M2 x L4 (4) Silver 1.6 kgf-cm
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							Chapter 395
21.Remove the one screw (C) securing the USB board to the lower case. 
22.Remove the USB Board from the lower case. 
StepSize (Quantity)ColorTo r q u e
1 M2 x L4 (1) Silver 1.6 kgf-cm
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							96Chapter 3
 LCD Module Disassembly Process
LCD Module Disassembly Flowchart
Main Screw List
ItemScrewPart No.
A M2.5 x L6 86.00E33.736
E M2.5 x L5 86.00F19.735
F M2 x L3 86.00C07.220
LCD MODULE
LCD BEZEL
LEFT HINGERIGHT HINGE
Ax 8
Ex1 Ex 1
LCD ASSEMBLY
LEFT LCD
BRACKETFx2RIGHT LCD
BRACKETFx2LCD FPC
CABLE
INVERTER BOARD
LCD BACK PANEL
ANTENNAS
LCD MODULE DISASSEMBLY
Ax2
Ax1
VGA
CAMERAINTERNAL
MICROPHONE
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							Chapter 397
Removing the LCD Bezel
1.See “Removing the Battery Pack” on page 62.
2.See “Removing the Lower Cover” on page 64.
3.See “Removing the WLAN Board Modules” on page 68.
4.See “Removing the Middle Cover and the Power Board” on page 78.
5.See “Removing the LCD Module” on page 81.
6.Remove the four upper bezel screw caps and the four lower bezel caps. 
7.Remove the eight screws (A) on the LCD module in the order as shown. 
StepSize (Quantity)ColorTo r q u e
1~8 M2.5 x L6 (8) Black 3.0 kgf-cm
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							98Chapter 3
8. Carefully pry open the LCD bezel and remove the bezel from the LCD module. 
NOTE: The bottom side of the bezel is glued to the lcd panel, be careful when trying to remove the bezel.
Removing the LCD module with the Brackets
1.See “Removing the Battery Pack” on page 62.
2.See “Removing the Lower Cover” on page 64.
3.See “Removing the WLAN Board Modules” on page 68.
4.See “Removing the Middle Cover and the Power Board” on page 78.
5.See “Removing the LCD Module” on page 81.
6.See “Removing the LCD Bezel” on page 97.
7.Disconnect the cable from the camera board. 
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							Chapter 399
8.Remove the three screws (A) securing the LCD module and the Inverter panel. 
9.Detach the LCD with the brackets from the back cover. 
Removing the Inverter Board and FPC Cable
1.See “Removing the Battery Pack” on page 62.
2.See “Removing the Lower Cover” on page 64.
3.See “Removing the WLAN Board Modules” on page 68.
4.See “Removing the Middle Cover and the Power Board” on page 78.
5.See “Removing the LCD Module” on page 81.
6.See “Removing the LCD Bezel” on page 97.
7.See “Removing the LCD module with the Brackets” on page 98.
8.Disconnect the inverter board cable from its connector, then disconnect the 2P cable on the inverter board 
to remove it. 
StepSize (Quantity)ColorTo r q u e
1~3 M2.5 x L6 (3) Black 3.0 kgf-cm
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							100Chapter 3
9.Detach the acetic tapes holding the FPC cable from the LCD panel and detach the acetic tape securing 
the FPC connector. 
10.Disconnect the FPC cable from the LCD panel. 
Removing the LCD Brackets
1.See “Removing the Battery Pack” on page 62.
2.See “Removing the Lower Cover” on page 64.
3.See “Removing the WLAN Board Modules” on page 68.
4.See “Removing the Middle Cover and the Power Board” on page 78.
5.See “Removing the LCD Module” on page 81.
6.See “Removing the LCD Bezel” on page 97.
7.See “Removing the LCD module with the Brackets” on page 98.
8.See “Removing the Inverter Board and FPC Cable” on page 99.
9.Remove the four screws (F) securing the left and right LCD brackets to remove the brackets. 
StepSize (Quantity)ColorTo r q u e
1~4 M2 x L3 (4) Silver 1.6 kgf-cm
SG_Tangiz.book  Page 100  Tuesday, July 10, 2007  11:01 AM