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Acer ENTJ76, ENTJ77, ENTJ75, ENTJ78 manual 101

Models: ENTJ78 ENTJ77 ENTJ76 ENTJ75

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5Disconnect the webcam cable from the webcam board.

6Remove the LCD hinge screws.

7Remove the LCD from the LCD assembly lid.

8Lay the LCD on its front to access the LCD-webcam cable.

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Acer ENTJ76, ENTJ77, ENTJ75, ENTJ78 manual 101

Contents

Serviceguide Revision History Contents Replacing notebook components Iii Contents System specifications General information PrefaceConventions Platform FeaturesSecurity Physical specifications System block diagram Controller Hardware specifications and configurationsSpecification ControllersMemory ItemSpecificationOptical drive Hard disk driveLCD Memory card reader KeyboardPointing device Audio Wired LANBluetooth Buttons/Indicators/Ports Wireless LANFans BatteryCPU temperature C Fan speed rpm Acoustic level dBA CameraAcpi mode Power Management Power supplyPower savings Component Icon Description Front ViewRight View Rear View Bottom ViewKeyboard area Information, see Using the keyboard onLCD panel Using the touchpad onIndicator Icon Description Using the status indicatorsUsing the keyboard Press and hold FN Then press this System key Key type Icon DescriptionTurn the optional Bluetooth radio on or off Button Description Using the capacitive touch keysDo this Using the touchpadUsing the webcam System utilities Bios setup utility Bios setup utility menus Navigating the Bios setup utilityInformation Month/day/year EnabledSystem Time Displays the system time. The time is When set to Ahci Advanced Host To factory defaults by pressing the Alt+F10Keys during system boot-up Sata Mode Select the Sata controller operating modeSet Supervisor Set Supervisor Password or Set User Password box opens Set Supervisor Password or Set User Password box opens Boot Exit Performing a Bios recovery Bios recoveryCreating the Crisis Recovery disk Running the Flash utility Clearing a Bios password Unlocking the hard drive System utilities Replacing notebook components Tape Preventing static electricity dischargePreparing the work space Required tools Preparing the notebook Removing the battery Complete the steps in Preparing the notebook on Removing the bay coverRemove the memory module from its slot Adding or replacing memory modulesPage Replacing the wireless card Page Remove the hard drive screw Replacing the hard drivePage Replacing the optical drive Page Replacing the keyboard cover Reinstall the battery Replacing the multimedia board Reinstall the battery Replacing the keyboard Keyboard cable is correctly oriented if it is not twisted Replacing the LCD panel assembly Page Carefully open the LCD panel to its fully extended position Page Replacing the palm rest Disconnect the speaker cable from the system board Replacing notebook components Page Replacing the speakers Page Replacing the touchpad board Page Replacing notebook components Replacing the modem board Replacing notebook components Page Replacing the USB board Page Replacing notebook components Replacing the Bluetooth module Replacing notebook components Page Replacing the system board Carefully remove the system board from the base enclosure Replacing notebook components Replacing the cooling assembly Remove the cooling assembly from the system board Remove the barcode sticker on top of the processor Replacing the processor Remove the old processor from the system board Replacing notebook components Replacing the LCD front panel Replacing notebook components Page Replacing the webcam Page 100 Replacing the LCD101 102 103 Replacing the LCD panel hinge brackets104 105 Replacing the power button board106 107 Replacing the Kensington lock cap108 109 Replacing the microphone110 111 Replacing the antennas112 113 Replacing the LCD assembly lid114 Troubleshooting 116 Diagnosing problems117 System test proceduresTesting the optical drive Testing the keyboard or auxiliary input device118 Testing the memoryTesting the power system 119 Testing the touchpad120 Power-On Self-Test Post error messageError Messages FRU/Action Sequence Error codesError messages Error CodesCmos 122123 No-beep error messagesNo-beep Error Messages FRU/Action in Sequence Code Beeps Post Routine Description Phoenix Bios beep codes124 125 126 127 128 129 Symptom-to-FRU error messagesPower Symptom / Error Action in SequenceSound Power management130 Keyboard and touchpad 131Devices 132 Intermittent problems133 Undetermined problems134 Connector locations Top view System board layout136 Bottom view Discrete model 137Intel PCH 138Bottom view UMA model FRU Field-Replaceable Unit list Introduction Exploded diagram141 Category Description FRU list143 144 145 146 Appendixa Device name Microsoft Windows 7 Compatibility TestFacebook-Bowling Buddies RS-MMC 128 MB Memory CardTranscend MMC Plus 4 GB Card Warcraft III The Frozen Throne150 Appendixb 152 Index 154 155 156 Page MAN NV5x SVC GDE R1 04/09