Acer 4020 manual Disassembling the Lower Case Assembly

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Disassembling the Lower Case Assembly

1.Disconnect the MDC cable from the modem board.

2.Detach the MDC cable from the main board.

3.Remove the two screws holding the modem board.

4.Remove the modem board from the lower case.

5.Disconnect the speaker cable from the main board.

6.Remove the two screws that secure the main board.

7.Remove the two screw nuts as shown.

8.The you can detach the main board from the upper case.

9.Remove the three screws that secure the VGA heatsink.

10.Remove the VGA heatsink from the main board as shown.

11.Remove the three in one cover from the lower case.

12.Remove the two screws that secure the speaker set on one side.

Chapter 3

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Contents Acer TravelMate 4020 Series Revision History Disclaimer CopyrightScreen Messages ConventionsPreface Page Chapter FeaturesStorage Battery Top View Mainboard PlacementRear View Description 5V / 3.3V Block DiagramOutlook View Open ViewDescription Icon Description Front PanelLeft View Right View Power jack Connects to an AC adapter External display port Bottom View Indicators Easy-launch buttons Touchpad Basics TouchpadDesired action Num Lock on Num Lock off Using the KeyboardLock keys and embedded numeric keypad Lock Key DescriptionKey Description Hot KeysHot Key Function Description Special KeysUS dollar sign Euro symbolAcer eManager Using System UtilitiesLaunch Manager L2 Cache Hardware Specifications and ConfigurationsProcessor Specification System Board Major ChipsUSB Port Specification System Memory SpecificationLAN Interface Specification Modem/Bluetooth Interface SpecificationKeyboard Specification Pcmcia Port SpecificationMechanical Specifications Battery SpecificationPackage configuration LCD 15.4 Wxga SpecificationInput Requirements SpecificationsMechanical Specification AC Adapter SpecificationPower Management Acpi Mode Output Ratings CV modeOutput Ratings CC mode Dynamic Output CharacteristicsData Storage Physical Dimensions and Weight DetailsLogical Configuration Environmental RequirementsToshiba Reliability Characteristics Error Rates Nominal Power RequirementsPhysical & Environmental Specs Dimensions/Weight Ambient TemperaturePreventive Maintenance System Utilities Bios Setup UtilityParameter Description InformationUuid Main Advanced Security Boot ExitF12 Boot Menu Advanced Security Boot ExitParameter Description Option SecurityEnter Set Supervisor/User PasswordDisabled Characters 0-9,A-Z not case sensitiveSetup Notice Changes have been saved Continue Exit BootExit Info Main Advanced Security BootChapter Machine Disassembly and Replacement Before You Begin General InformationChapter Disassembly Procedure Flowchart Description Screw ListRemoving the Battery Pack Removing the HDD Module Removing the Memory and the Wireless LAN CardRemoving the Thermal Module and CPU Removing the ODD Module Removing the LCD Module Disassembling the Main Unit Disassembling the Upper Case Assembly Disassembling the Lower Case Assembly Chapter Disassembling the LCD Module Chapter Disassembling the Optical Drive Module Disassembling the External ModulesChapter Troubleshooting Keyboard or Auxiliary Input Device Check System Check ProceduresExternal Diskette Drive Check External CD-ROM Drive CheckMemory check Power System CheckTouchpad Check Power-on Self-Test Error Messages Index of Error Messages Error Code ListError Message List CPU ID No beep Error Messages FRU/Action in Sequence Code Beeps Post Routine Description Phoenix Bios Beep CodesCode Beeps Post Routine Description Chapter Code Beeps Post Routine Description Power-Related Symptoms Index of Symptom-to-FRU Error MessageLCD-Related Symptoms Indicator-Related SymptomsPower Management-Related Symptoms PCMCIA-Related SymptomsMemory-Related Symptoms Speaker-Related SymptomsPeripheral-Related Symptoms Keyboard/Touchpad-Related SymptomsModem-Related Symptoms Intermittent Problems Dimm Undetermined ProblemsChapter Top View Jumper and Connector LocationsRear View VGA RAM RTC Jumper FRU Field Replaceable Unit List Exploded Diagram Illustration Part Name Description Acer P/N Touch PAD Board ZL1A Touch PAD Lower Case W ZL3A Base Assy W/O DVD/CDRW Combo ZI6 Combo SBW-242C DVD Dual Drive ZL6 DVD Rwdual ZL1A K/B EUGO-U/I LCD Cable 15 ZL1A 15 LCD Cabel LCD Module 15 ZL1 15 LCD SXGA+ LCD Module 15.4 ZL1A 15.4 LCD Wxga Samsung LTN154X3 Samsung Panel UMA W/PCMCIA Slot CPU Memory Memory DDR333 Name Plate ZL3A Name Plate S Screw M2.5*4L-BZN ET2S Screw 100 Chapter