Acer Aspire 2920z Service Guide
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Chapter 251 Removing HDD Utility This section provide you with removing HDD method: Remove HDD Password: If you key in wrong HDD password for three time, “HDD password error code” would display on the screen. See the image below. If you need to solve HDD password locked problem, you can run unlock6.exe 1. Key in “unlock6 03567 00”” 2.Select “2” 3.Choose one upper-case string
52Chapter 2 Reboot system and key in N9H7W7I , 9HNXDDI ,BCIKFVX,TPFIK1K or Q918H7I to HDD user password.
Chapter 353 This chapter contains step-by-step procedures on how to disassemble the notebook computer for maintenance and troubleshooting. Disassembly Requirements To disassemble the computer, you need the following tools: Wrist grounding strap and conductive mat for preventing electrostatic discharge Flat screwdriver Philips screwdriver Hex screwdriver Plastic flat screwdriver Plastic tweezers NOTE: The screws for the different components vary in size. During the disassembly process, group the screws with the corresponding components to avoid mismatch when putting back the components. Chapter 3 Machine Disassembly and Replacement
54Chapter 3 General Information Pre-disassembly Instructions Before proceeding with the disassembly procedure, make sure that you do the following: 1.Turn off the power to the system and all peripherals. 2.Unplug the AC adapter and all power and signal cables from the system. 3.Place the system on a flat, stable surface. 4.Remove the battery pack. Disassembly Process The disassembly process is divided into the following stages: External module disassembly Main unit disassembly LCD 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 main board, you must first remove the keyboard, then disassemble the inside assembly frame in that order. Main Screw List ItemScrewColorPart No. A M2 x L3 Black 86.00D29.620 B M2 x L4 Black 86.00D68.620 C M3 x L4 Silver 86.9A524.4R0 D M2 x L5 Black 86.00E32.725 E M2.5 x L5 Black 86.00F87.735 F M2 x L4 Black 86.00F24.724 G M2 x L3 Silver 86.9A552.3R0 H M2.5 x L8 Black 86.00E34.738 I M2.5 x L4 Silver 86.00E41.134
Chapter 355 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 main board, you must first remove the keyboard, then disassemble the inside assembly frame in that order. Screw List ItemScrewColorPart No. A M2 x L3 Black 86.00D29.620 B M2 x L4 Black 86.00D68.620 C M3 x L4 Silver 86.9A524.4R0 D M2 x L5 Black 86.00E32.725 EXTERNAL MODULE DISASSEMBLY WLAN BOARDTURN OFF POWER AND PERIPHERALS UNPLUG POWER CABLES Ax2 LOWER COVER Bx4, Captive Screwx5 DIMM MODULES OPTICAL DISK DRIVE MODULE Ax2 OPTICAL DISK DRIVECx4OPTICAL LOCKER BRACKET HDD MODULE HARD DISK BRACKET ENCLOSUREHARD DISK DRIVE REMOVE BATTERY PA C K SD DUMMY CARDExpressCard DUMMY CARD Dx1
56Chapter 3 Removing the Battery Pack 1.Turn base unit over. 2.Slide the battery lock/unlock latch to the unlock position. 3.Slide and hold the battery release latch to the release position (1), then slide out the battery pack from the main unit (2). Removing the SD dummy card 1.Push the SD dummy card all the way in to eject it (1, 2).
Chapter 357 2.Pull it out from the slot. Removing the ExpressCard dummy card 1.Push the ExpressCard dummy card all the way in to eject it. 2.Pull it out from the slot. Removing the Lower Cover 1.See “Removing the Battery Pack” on page 56.
58Chapter 3 2.See “Removing the SD dummy card” on page 56. 3.See “Removing the ExpressCard dummy card” on page 57. 4.Remove the four screws (B) and loosen the five captive screws on the lower cover. 5.Use a plastic screw driver to carefully pry open the lower cover. StepSize (Quantity)ColorTo r q u e 1~4 M2 x L12 (4) Black 1.6 kgf-cm
Chapter 359 6.Remove the lower cover from the lower case. Removing the DIMM 1.See “Removing the Battery Pack” on page 56. 2.See “Removing the SD dummy card” on page 56. 3.See “Removing the ExpressCard dummy card” on page 57. 4.See “Removing the Lower Cover” on page 57.. 5.Push out the latches on both sides of the DIMM socket to release the DIMM.
60Chapter 3 6.Remove the DIMM module. Removing the WLAN Board Modules 1.See “Removing the Battery Pack” on page 56. 2.See “Removing the SD dummy card” on page 56. 3.See “Removing the ExpressCard dummy card” on page 57. 4.See “Removing the Lower Cover” on page 57. 5.Disconnect the antenna cables from the WLAN board.