Built-In Keyboard Failure | Acer 5745 manual

Built-In Keyboard Failure

If the built-in Keyboard fails, perform the following actions one at a time to correct the problem. Do not replace non-defective FRUs:

Start

Keyboard properly

Disconnect and

connected?

No

reconnect





Keyboard functioning?				No			Replace Keyboard
Keyboard functioning?				No			Replace Keyboard

Replace

mainboard

140

Chapter 4

Image 150

Acer 5745 manual Built-In Keyboard Failure

Contents

Aspire 5745 Series Service Guide Revision History Copyright III Conventions Preface Page Table of Contents 135 Viii FRU Field Replaceable Unit List 157 Table of Contents Features Chapter Storage subsystem Dimensions and WeightPower Adapter and Battery Audio subsystem Software Special Keys and ControlsPorts Energy Star Warranty Optional ItemsEnvironment System Block Diagram ATI-GPU Top View Icon Description Closed Front View Left View Right View Hdmi Indicators Base ViewHDD TouchPad Basics Function Left Button Right Button Main TouchPad Lock Keys and embedded numeric keypad Using the KeyboardDesired access Num Lock on Num Lock off Lock key Description Windows Keys Key Description Hot Keys Hotkey Icon Function Description Euro symbol Special KeysUS dollar sign Processor Specifications Hardware Specifications and ConfigurationsProcessor Specification Core Logic Specifications System Memory Specification I7 Memory Population Rule Clarksfield with 4 SO-DIMM Result Video Specifications Clarksfield with 4 SO-DIMM Result Hgst LCD Display Resolution BitsHard Disk Drive Interface Specification RPM Bios LCD Specification LAN Interface Specification Bluetooth SpecificationAudio Codec and Amplifier Specification Atheros AR8131L Camera Specifications Keyboard SpecificationMedia Card Reader Specification Lqfp Wireless LAN Specification Battery Specification CellSamsung AS10B Bios Setup Utility Navigating the Bios Utility Information Parameter Description Main Parameter Description Format/Option Parameter Description Option Disabled orSecurity Clear or Set Setting a Password Removing a Password Changing a Password Continue Boot IDE0 WDC WD6400BEVT-22A0RT0 Exit Exit Saving Changes Bios Flash Utility USB FDD DOS Flash UtilityIDE1 HL-DT-STDVDRAM GT30N USB HDD WinFlash Utility Remove HDD/BIOS Password Utilities Remove HDD PasswordSelect Enter Unlock Password and press Enter Removing Bios Passwords Using Boot Sequence Selector Using DMIToolsMiscellaneous Utilities Using the LAN MAC Utility Example 1 Read DMI Information from Memory Chapter Disassembly Requirements Replacement RequirementsRelated Information Pre-disassembly Instructions Disassembly Process Main Screw List Quantity Acer Part Number External Module Disassembly Process External Modules Disassembly FlowchartScrew List Step Quantity Removing the Battery Pack Removing the Dummy Card Removing the Base Door Step Screw Quantity Screw Type Lift the base door out and away Removing the Hard Disk Drive Module Remove the two 2 screws of the HDD bracket Removing the Dimm Module Removing the Wlan Module Pull the Wlan module out and away Chapter Removing the ODD Module Remove the two 2 screws of the ODD bracket Removing the RTC Battery Main Unit Disassembly Process Main Unit Disassembly Flowchart Screw List Step Quantity Removing the Keyboard Chapter Removing the Upper Cover Step Screw Quantity Screw Type Step Screw Quantity Screw Type Chapter Removing the Switch Board Unlock and disconnect the switch board FFC Removing the Power Board Lift the power board away Removing the LCD Module Chapter Step Screw Quantity Screw Type Removing the I/O Board Screw List Step Quantity Screw TypeM2.5*5 Page Removing the Bluetooth Module Detach the Bluetooth module cable from the module Chapter Removing the Mainboard Page Removing the Thermal Module Removing the CPU Removing the PCH Thermal Unit Removing the Power Cable Assembly Chapter LCD Module Disassembly Process LCD Module Disassembly Flowchart Step Screw Quantity Removing the LCD Bezel Step Screw Quantity Screw Type Remove LCD Bezel M2.5*4 Chapter Removing the Camera Board Removing the LCD Panel Step Screw Quantity Screw Type Remove LCD Panel M2x3Page Disconnect the FPC cable Removing the Microphone Cable Removing the Antennas Step Screw Quantity Screw Type Remove Right Hinge M2.5*3 Pry the antenna off the casing LCD Reassembly Procedure Replacing the Antennas Step Screw Quantity Screw Type Replace Right Hinge M2.5*3 Lay the cables along the retention guides Chapter Replacing the Microphone Replacing the LCD FPC Cable Replacing the LCD Panel Step Screw Quantity Screw Type LCD Panel Assembly M2.5x3 Replacing the Camera Board Replacing the LCD Bezel 102 Chapter Step Screw Quantity Screw Type Replace LCD Bezel M2.5*4 Main Unit Reassembly Process Replacing the Power Assembly Replace the one 1 screw Replacing the PCH Thermal Module Replacing the CPUPage Replacing the Thermal Module Replacing the Main Board Step Screw Quantity Screw Type Replace Mainboard M2.5*5 Screw List Step Quantity Screw Type Card Assembly M2.5x5 Replacing the I/O CardPage Replacing the Bluetooth Module Page Replacing the LCD Module Page 116 Chapter Replacing the Power Board Replacing the Switch Board Step Size Quantity Screw Type Replacing the Upper Cover Replace the nine 9 screws Page Connect and lock the button board FFC Replacing the Keyboard Replacing the Wireless LAN Module Step Size Quantity Screw Type Wlan Assembly M2.5*3 Replacing the Dimm Module Step Size Quantity Screw Type HDD Assembly M3*3 Replacing the Hard Disk Drive 128 Chapter Replacing the RTC Battery Replacing the ODD Module Page Replacing the Base Door Replacing the Battery Replace the Dummy Card Common Problems Symptoms Verified Go To Power On Issue Computer Shuts down Intermittently No Display Issue No Post or Video Random Loss of Bios Settings Abnormal Video Display LCD Failure Built-In Keyboard Failure TouchPad Failure Sound Problems Internal Speaker Failure Microphone Problems Select Set up microphoneInternal Microphone Failure HDD Not Operating Correctly Select Repair your computerSelect Startup Repair USB Failure Right up/down side Other Failures Intermittent Problems Undetermined ProblemsDimm Post Code Range Phase Post Code Reference Tables Peienterrecoverymode PEI Peimemoryinstall PEIPeiswitchstack PEI Peirecoverymediafound PEI Bdsbeforepciioinstall BDS Dxesmarttimerinit DXEBdsinstallhotkey BDS Dxepcrtcinit DXE PostBDS Post Code Table Functionality Name Include\ Post Description PostCode.hPost Description Code Smmacpidisablestart SMM Smmacpienablestart SMMSmmacpienableend SMM Smmacpidisableend SMM 152 Chapter Mainboard Top View Mainboard Bottom View Dimm Socket Population Rules Bios Recovery Boot Block Bios RecoveryBios Recovery by Crisis Disk Bios Recovery Hotkey FRU Field Replaceable Unit List Exploded Diagrams Main AssemblyDescription Part Number Chapter 159 LCD Assembly FRU List Power Cord Brazil Imetro 3 PIN Power CORDSWI1.8M 3PBLACK FZ010008-011Power Cord US 3PIN Rohs Power Cord UK 3PIN ODD Bezel BD Combo DVD/RW Super Multi 12.7MM ModuleODD Bezel -SUPER Multi Blur RAY Combo Module 12.7MM MK3265GSX Sata 8MB LF F/WGJ001J HDD Bracket Category Partname Acerpartno Camera Thermal Module DIS Main Board DISNV11P HM55 Dual Core WCPU RAM Main Board DIS NV11M HM55 Dual Core W Thermal Module UMA Screw List Category Appendix a Model Country Acer Part No Description 170 Model Country Acer Part No Description 172 Model Country Acer Part No Description 174 Model Country Acer Part No Description 176 TWN Gctwn 178 Model Country Acer Part No Description 180 Model Country Acer Part No Description 182 AAP 184 Model Country Acer Part No Description 186 Model MemorChip Ory 1GB BIII10 4KS N11PG 1G-DDR3 SO2GBIII10 Gbiii 4KS N11PG 1G-DDR3 SO4G N11PG 1G-DDR3 SO4G SO2G N11PG 1G-DDR3 SO1G 728G50Mi 20Q 64*16*8 Appendix a 191 192 724G50Mi 20Q 64*16*8 AS5745G Ci78 522G64Mn 20M 64*16*8 524G50Mn 20M 64*16*8 432G64Mn 30M 64*16*8 198 522G25Bn 20M 64*16*8 626G50Mn 20M 64*16*8 UMA SO2G UMA SO2G SO1GUMA SO1G NSM8XS Extra Wireless Blueto Batte AdaOth Pter 6CEL NBDCB4X NBDRW4X 724G64Bn 2x2 BGN L2.2 KB.I170A.172 AS5745G 6CEL CZ/SK French 724G50Mn 2x2 BGN L2.2 KB.I170A.171 AS5745G 724G50Mn 2x2 BGN L2.2 KB.I170A.156 AS5745G 334G64Mn 2x2 BGN L2.2 KB.I170A.172 AS5745G 434G64Bn 2x2 BGN L2.2 KB.I170A.153 AS5745G 434G64Bn 2x2 BGN L2.2 Hebrew KB.I170A.173 AS5745G 434G50Mn 2x2 BGN L2.2 KB.I170A.153 AS5745G 434G50Mn 2x2 BGN L2.2 KB.I170A.148 AS5745G 522G25Mn 2x2 BGN L2.2 KB.I170A.172 AS5745 Type Description Cover BluetoothAppendix B Adapter Type Description Card Reader NB Chipset Software WiFi AntennaWireless LAN VGA Chip Online Support Information Appendix C 220 Bios Index Block Diagram 223