Acer Aspire 4920 4920G User Manual
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Chapter 351 Disassembly Process The disassembly process is divided into the following stages: TExternal module disassembly TMain unit disassembly TLCD module disassembly The flowcharts provided in the succeeding disassembly sections illustrate the entire disassembly sequence. Observe the order of the sequence to avoid damage to any of the hardware components. For example, if you want to remove the mainboard, you must first remove the keyboard, then disassemble the inside assembly frame in that order. Main Screw List ItemScrewColorPart No. A M2 x L4 (torque 1.6) Black 86.00F24.724 M2 x L4 (torque 3.0) B M3 x L4 Silver 86.9A554.4R0 C M2 x L6 Black 86.00F58.726 D M2 x L2.5 Silver 86.00F22.722 E M2 x L4 86.9A552.3R0 F M2.5 x L8 Black 86.00E34.738 G M2.5 x L6 86.00E33.736 H M2 x L3 Silver 86.00C07.220 I M2 x L2.5 Silver 86.9A552.6R0 4(@TQJSF@#PPLCPPL1BHF.POEBZ .BZ 1.
52Chapter 3 External Module Disassembly Process External Modules Disassembly Flowchart The flowchart below gives you a graphic representation on the entire disassembly sequence and instructs you on the components that need to be removed during servicing. For example, if you want to remove the mainboard, you must first remove the keyboard, then disassemble the inside assembly frame in that order. Screw List ItemScrewPart No. A M2 x L4 86.00F24.724 B M3 x L4 86.9A554.4R0 C M2 x L6 86.00F58.726 D M2 x L2.5 86.00F22.722 EXTERNAL MODULE DISASSEMBLY TURN OFF POWER AND PERIPHERALS UNPLUG POWER CABLES LOWER COVER Ax8OPTICAL DISK DRIVE MODULE Cx1 OPTICAL DISK DRIVEOPTICAL LOCKER BRACKET HDD MODULE Dx2 WLAN BOARDDIMM MODULES Ax2 HARD DISK DRIVE BRACKET Ax2HARD DISK DRIVE HARD DISK DRIVE MODULE Ax1 4(@TQJSF@#PPLCPPL1BHF.POEBZ .BZ 1.
Chapter 353 Removing the Battery Pack 1.Turn base unit over. 2.Slide the battery lock/unlock latch to the unlock position (1). 3.Slide and hold the battery release latch to the release position (2). 4.Remove the battery from the main unit (3). 4(@TQJSF@#PPLCPPL1BHF.POEBZ .BZ 1.
54Chapter 3 Removing the SD Dummy Card 1.See “Removing the Battery Pack” on page 53. 2.Push against the card, as if you were pushing it further into the slot, letting the card spring out. 3.Remove the card from the slot. Removing the Express Dummy Card 1.See “Removing the Battery Pack” on page 53. 2.Push against the card,as if you were pushing it further into the slot, letting the card spring out. 4(@TQJSF@#PPLCPPL1BHF.POEBZ .BZ 1.
Chapter 355 3.Remove the card from the slot. Removing the Lower Cover 1.See “Removing the Battery Pack” on page 53. 2.Turn the base unit over, then loosen the eight screws (A) on the lower cover. 3.Use a plastic flat-blade screwdriver to pry open the lower cover. StepSize (Quantity)ColorTo r q u e 1~8 M2 x L4 Black 1.6 kgf-cm 4(@TQJSF@#PPLCPPL1BHF.POEBZ .BZ 1.
56Chapter 3 4.Remove the lower cover from the lower case. Removing the DIMM 1.See “Removing the Battery Pack” on page 53. 2.See “Removing the Lower Cover” on page 55. 3.Push out the latches on both sides of the DIMM socket to release the DIMM. 4.Remove the DIMM module. 4(@TQJSF@#PPLCPPL1BHF.POEBZ .BZ 1.
Chapter 357 Removing the WLAN Board Module 1.See “Removing the Battery Pack” on page 53. 2.See “Removing the Lower Cover” on page 55. 3.Detach the wireless board barcode label from the WLAN board. 4.Disconnect the two antenna cables from the WLAN board, then move the antennas away from the board. 5.Remove the two screws (A) on the WLAN board to release the WLAN board. StepSize (Quantity)ColorTo r q u e 1~2 M2 x L4 (2) Black 1.6 kgf-cm 4(@TQJSF@#PPLCPPL1BHF.POEBZ .BZ 1.
58Chapter 3 6.Detach the WLAN board from the WLAN socket. NOTE: When attaching the antennas back to the WLAN board, make sure the cable are routed properly. Removing the Hard Disk Drive Module 1.See “Removing the Battery Pack” on page 53. 2.See “Removing the SD Dummy Card” on page 54. 3.See “Removing the Express Dummy Card” on page 54. 4.See “Removing the Lower Cover” on page 55. 5.Remove the screw (A) securing the HDD assembly to the unit. 6.Pull the HDD module out by pulling on the mylar attached to it, gently slide-out the HDD module from its bay. NOTE: To prevent damage to device, avoid pressing down on it or placing heavy objects on top of it. StepSize (Quantity)ColorTo r q u e 1 M2 x L4 (1) Black 3 kgf-cm 4(@TQJSF@#PPLCPPL1BHF.POEBZ .BZ 1.
Chapter 359 7.Remove the two screws (A) on the HDD bracket. 8.Remove the hard disk drive. Removing the Optical Drive Module 1.See “Removing the Battery Pack” on page 53. 2.See “Removing the Lower Cover” on page 55. 3.Remove the screw (C) on the bottom side of the unit, as shown. StepSize (Quantity)ColorTo r q u e 1~2 M2 x L4 (2) Silver 3.0 kgf-cm StepSize (Quantity)ColorTo r q u e 1 M2 x L6 (1) Black 3 kgf-cm 4(@TQJSF@#PPLCPPL1BHF.POEBZ .BZ 1.
60Chapter 3 4.Using the flat-blade screwdriver, press the end of the module forward, then slide out the optical drive module from the main unit. 5.Remove the two screws (D) securing the optical bracket and remove the locker bracket from the optical disk drive module. StepSize (Quantity)ColorTo r q u e 1-2 M2 x L2.5 (2) Silver 1.6 kgf-cm 4(@TQJSF@#PPLCPPL1BHF.POEBZ .BZ 1.