Acer Aspire 5942 Service Guide
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Chapter 239 Using the ICW50/ICY70 LAN MAC Utility You can use the MAC.BAT utility to write the MAC.CFG file to the EEPROM under DOS mode. 1.Use a text editor (for example: Notepad) to open the MAC.CFG file. You can see the MAC.CFG contents as below: 2.In DOS mode, run the MAC.BAT file to write MAC values to eeprom. WriteData = ‘001122334455 MAC value StartAddr=7A MAC address WriteLeng=6 MAC value length KeepByte=0 don’t care
Chapter 341 Machine Disassembly and Replacement IMPORTANT: The outside housing and color may vary from the mass produced model. 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 •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. IMPORTANT: Various images depict the use of a regular metal screwdriver, however, a plastic screwdriver is advised when disassembling parts near or around the motherboard and to prevent scratching of the computer surface. Chapter 3
42Chapter 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 ScrewQuantityPart Number SCREW M2.5*3 23 86.PH702.001 SCREW M2*3 8 86.PH702.002 SCREW M2.5*3 23 86.PH702.003 SCREW M3*3 4 86.PH702.004 SCREW M2.5*5 12 86.PH702.005 SCREW M2.5*8 18 86.PH702.006
Chapter 343 External Module Disassembly Process IMPORTANT: The outside housing and color may vary from the mass produced model. 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. NOTE: Items enclosed with broken lines (— - - —) are optional and may not be present. Screw List StepScrewQuantityPart No. ODD M2.5*5 1 86.PH702.005 M2*3 2 86.PH702.002 HDD M3*3 4 86.PH702.004 TV Tuner (optional)M2*3 2 86.PH702.002 WLAN Module M2*3 2 86.PH702.002 Disconnect pow er and signal cables from system Rem ove Battery Turn off system and peripherals pow er Rem ove DIMMs Rem ove WLAN Rem ove HDDRem ove ODD Rem ove Lower CoversRem ove Dummy Cards Rem ove TV Tu ner
44Chapter 3 Removing the Battery Pack 1.Turn the computer over. 2.Slide the battery lock to the unlocked position. 3.Slide and hold the battery release latch to the release position (1), then lift out the battery pack from the main unit (2). 12
Chapter 345 Removing the Express Dummy Card 1.Push the Express dummy card all the way in to eject it. 2.Pull the card out from the slot.
46Chapter 3 Removing the SD Dummy Card 1.Push the SD dummy card all the way in to eject it. 2.Pull the card out from the slot.
Chapter 347 Removing the Lower Covers 1.See “Removing the Battery Pack” on page 44. 2.Loosen the four captive screws in the Memory/HDD and WLAN covers. 3.Carefully open the Memory/HDD cover. 4.Carefully open the WLAN cover. Memory/ HDD Cover WLAN Cover
48Chapter 3 Removing the Optical Drive Module 1.See “Removing the Lower Covers” on page 47. 2.Remove the single screw securing the ODD module. 3.Insert a suitable object in to the Lower Cover to push the ODD Module clear of the casing. 4.Pull the ODD Module out of the chassis. StepSizeQuantityScrew Type ODD Module M2.5*5 1