Fingerprint Reader Failure, Thermal Unit Failure | Acer 4240

Fingerprint Reader Failure

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

Thermal Unit Failure

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

	Start


					OK


										Reconnect the
Check Fan power cable						NG				cable to the
Check Fan power cable						NG				cable to the
										Mainboard
										Mainboard


					OK


										Swap the Thermal
	Check Fan					NG				Swap the Thermal
	Check Fan					NG				Module




					OK

	CPU Heatink well

						NG				Seat it well
	seated?					NG				Seat it well




					OK



	Check CPU					NG				Swap CPU
	Check CPU					NG				Swap CPU

Swap Mainboard

152

Chapter 4

Image 162

Acer 4240 manual Fingerprint Reader Failure, Thermal Unit Failure

Contents

Aspire 4540/4240 Series Service Guide Revision History Copyright III Conventions Preface Page Table of Contents Troubleshooting 137 Viii Aspire 4540/4240 Series Microsoft Windows 7 Environment Test Table of Contents Features Chapter Communication Dimensions and WeightPower subsystem Privacy control Environment System Block Diagram Your Acer Notebook tour Icon DescriptionHDD Closed Front View Left View Hdmi Right View Bottom View Icon Function Description Touchpad Basics with fingerprint reader Function Left Button Right Button Main touchpad Lock key Description Using the KeyboardDesired access Num Lock on Num Lock off Fn + F11 Windows Keys Key Description Using the System Utilities Euro symbolUS dollar sign Acer GridVista dual-display compatible Processor Specifications Hardware Specifications and ConfigurationsProcessor Specification System Board Major Chips Specifications Smbios 1MB System Memory Specifications Memory Combinations Slot Total Memory Hard Disk Drive Interface Specifications RPM Rate Mbytes/sec Max DC Power Requirements Voltage Super-Multi Combo Module Specification LCD Specification Audio Interface Specification VGA Graphic Controller SpecificationKeyboard Specification Bluetooth Specification Pifa Finger Print Reader SpecificationBattery Sony AS-2007A Bios Setup Utility Navigating the Bios Utility Information Parameter Description Main Enables or disables the Press F12 to display bootDisabled IDE Ahci Parameter Description Option Disabled orSecurity Clear or Set Setting a Password Removing a Password Changing a Password Enter New Password Boot USB CD/DVD ROM Exit Cmos Bios Flash Utilities DOS Flash Utility Flash process begins as shown WinFlash Utility Progress screen displays Chapter Remove HDD/BIOS Password Utilities Remove HDD Password Removing Bios Passwords Cleaning Bios Passwords Using Boot Sequence Selector Using DMIToolsMiscellaneous Utilities Using the LAN MAC Eeprom Utility DOS mode, run the MAC.BAT file to write MAC values to eeprom Machine Disassembly and Replacement Disassembly Requirements General Information Pre-disassembly InstructionsDisassembly Process Main Screw List Description Quantity Acer P/N External Module Disassembly Process External Modules Disassembly FlowchartScrew List Step Quantity Removing the Battery Pack Removing the SD Dummy Card Removing the Lower Covers Dimm Remove the HDD Cover as shown Chapter Removing the Wlan Module Step Size Quantity Screw Type Wlan Module M2*3 Removing the Dimm Modules Removing the Hard Disk Drive Module Step Size Quantity Screw Type HDD Carrier M3*3 Removing the Optical Disk Drive Module Step Size Quantity Screw Type ODD Module M2.5*5 Step Size Quantity Screw Type ODD Bracket M2*3 Main Unit Disassembly Process Main Unit Disassembly Flowchart Removing the Hinge Covers Step Size Quantity Screw Type Hinge Covers M2*3 Removing the Switch Cover Step Size Quantity Screw Type Chapter Removing the Keyboard Removing the Speaker Module Step Size Quantity Screw Type Speaker Module M2.5*3Page Removing the LCD Module Step Size Quantity Screw Type LCD Module M2.5*5Page Chapter Remove the two securing screws from the left LCD hinge Remove the two securing screws from the right LCD hinge Removing the Upper Cover Chapter Page Removing the Finger Print Reader Page Removing the TouchPad Bracket Remove the two screws from the TouchPad Bracket Removing the RTC Battery Removing the Bluetooth Module Bluetooth Module Removing the USB Board Step Size Quantity Screw Type USB Board M2.5*3 Removing the Modem Module Step Size Quantity Screw Type Modem Module M2*3Page Removing the Mainboard Step Size Quantity Screw Type Mainboard M2.5*3 Removing the RJ-11 Port Chapter Removing the Thermal Module Step Size Quantity Screw Type Thermal Module 5*3.2 Chapter Removing the CPU LCD Module Disassembly Process LCD Module Disassembly Flowchart Removing the LCD Bezel Step Size Quantity Screw Type LCD Bezel M2.5*5 Lift the bezel away from the panel Removing the Camera Module Step Size Quantity Screw Type Camera Module M2.5*3 Removing the LCD Panel Lift the LCD Panel out of the casing as shown Chapter Removing the LCD Brackets and FPC Cable Removing the Antennas Removing the MIC Module LCD Module Reassembly Procedure Replacing the MIC ModuleReplacing the Antennas Chapter Page Replacing the LCD Panel Page Replacing the Camera Module Replacing the LCD Bezel Main Module Reassembly Procedure Replacing the CPU Replacing the Thermal Module Connect fan cable to the mainboard as shown Replacing the RJ-11 Port Replacing the Mainboard Insert the single securing screw Replacing the USB Board Replacing the Bluetooth Board 110 Chapter Replacing the Modem Module Replacing the TouchPad Bracket Page Replacing the Finger Print Reader Replace the single securing screw Chapter 115 Replacing the Upper Cover Page Replace the two securing screws in the Upper Cover Replacing the LCD Module Reconnect the Microphone cable to the Mainboard as shown Page 122 Chapter Replacing the Speaker Module Replacing the Keyboard Page Replacing the Switch Cover Step Size Quantity Screw Type Replacing the Hinge Covers External Module Reassembly Process Replacing the ODD Module Replacing the Hard Disk Drive Module Replace the four securing screws two each side Replacing the Dimm Modules Replacing the Wlan Module Replace the two screws to secure the module Replacing the Lower Covers Replacing the SD Dummy Card Replacing the Battery 136 Chapter Common Problems Symptoms Verified Go To Power On Issue Computer Shutsdown Intermittently No Display Issue No Post or Video Random Loss of Bios Settings Abnormal Video Display LCD Failure Built-In Keyboard Failure Touchpad Failure Internal Speaker Failure Sound Problems Microphone Problems Select Set up microphoneInternal Microphone Failure HDD Not Operating Correctly Select Repair your computerSelect Startup Repair ODD Failure ODD Not Operating Correctly Discs Do Not Play Drive Not Detected USB Failure Rightside Modem Function Failure Wireless Function Failure Bluetooth Function Failure EasyTouch Button Failure Media Board Failure Fingerprint Reader Failure Thermal Unit Failure External Mouse Failure Other Failures Intermittent Problems Undetermined Problems Memory Post Codes TablesSec Code Description BDS & Specific action Each Peim entry point used in 80PORT Each Driver entry point used in 80PORT Fvbservice CF9RESETBootpriority Savememoryconfig Setuputility LegacybiosLegacybiosplatform Fwblockservice Each SmmDriver entry point used in 80PORT Top View Bottom View Vram JMIC1 JUSB1JHP1 JPLINE1 Hardware Open Gap Description Clearing Password CheckSteps for Clearing Bios Password Check Description Location Clear Cmos Jumper Memory bay Bios Recovery Hotkey Bios Recovery by Crisis DiskBios Recovery Boot Block Steps for Bios Recovery by Crisis Disk 166 Chapter FRU Field Replaceable Unit List Aspire 4540/4240 Exploded Diagrams Main ModuleCPU Base Board Category Description Acer PN BatteryAspire 4540/4240 FRU List Cable Case/Cover/Bracket Assembly Category Description Acer PN HDD Bracket Hinge CAP LHinge CAP R Mini Card Bracket Keyboard Keyboard Acer AC4T JV40 InternalStandard 87KS Black Nordic Texture Super Multidrive Combo Drive LED LCD AUO 14 Wxga Glare B140XW01 V0 1A LF Assy LCD Module 14 Wxga Glare W/ AntennaCAMERA, IMR LED LCD AUO 14 Wxga Glare B140XW01 V0 0A LF LED LCD Samsung 14 Wxga Glare LTN140AT01 Antenna Mimo R-3X3 LCD Bezel W/O Cmos Lvds Cable W/O Cmos Speaker Screw List33.PAA02.006 Miscellaneous Chapter 179 Model Country Acer Part No Description Appendix aAspire 4540/4240 Series AAP 181 Model Country Acer Part No Description Acla CHIUSA Model Country Acer Part No Description 185 Model Country Acer Part No Description 187 Model Memory Chip NLED14WXGAG UMA SO2GBII6 SO1GBII6 Appendix a 190 Media Processor Extra SW1 ATUM600 NLED14WXGAG UMA SO1GBII6ATUM620 NLED14WXGAG UMA SO1GBII6 NSM8XS NBDCB4XS AS4540-302G25Mn N250GB5.4KS Model Card Reader Wireless LAN1 Bluetooth Voip Phone 195 1-Build 3rd WiFi 1x2 BGN Appendix a 196 197 Appendix a 198 Test Compatible Components Appendix B Type Description Adapter Microsoft Windows 7 Environment TestBOMName Audio Codec Type Description CameraCard Bus1 Finger Print Reader WD3200BEVT-22ZCT0 ML160 Sata LF F WD5000BEVT-22ZAT0 ML250 Sata LF F 204 Samsung NLED14WXGAG Acer AC4TAUO NLED14WXGAG LPL NLED14WXGAG Memory Modem Northbridge Chipset Southbridge Chipset AMD AMDSB710 AMD SB710Software WiFi Antenna VGA Chip 210 Online Support Information Appendix C 212 Index ODD