Modem Function Failure, Wireless Function Failure | Acer 5940G

Modem Function Failure

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

	START



	RJ-11 well									Connect it well
	RJ-11 well				No
	connected?				No
	connected?



	Modem wire									Connect it well
	Modem wire				No
	well connected?				No
	well connected?



	Modem card									Seat it well
	Modem card				No
	well connected?				No
	well connected?



Modem card OK?										Replace
					No					Replace
					No					Modem card
										Modem card



	Replace
	Mainboard

Wireless Function Failure

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

Chapter 4

147

Image 157

Acer 5940G manual Modem Function Failure, Wireless Function Failure

Contents

Aspire 5940G Series Service Guide Revision History III Copyright Conventions Preface Page Table of Contents Viii 135 Microsoft Windows 7 Environment Test Aspire 5940G Series Table of Contents Chapter Features Power subsystem Dimensions and WeightCommunication Privacy control Environment Fan Control System Block Diagram Front View Your Acer Notebook tourIcon Description HDD Closed Front View Left View Rear View 1394 Right View Bottom View Function Left Button Right Button Main touchpad TouchPad Basics with fingerprint reader Lock Keys and embedded numeric keypad Using the Keyboard Key Description Windows Keys Hotkey Icon Function Description Hot Keys Special Key Euro symbolUS dollar sign Acer GridVista dual-display compatible Using the System Utilities Hardware Specifications and Configurations Memory Combinations Slot Total Memory System Memory Specification Wireless Module 802.11b/g Specification LAN Interface Specification Blueray Combo Module Hard Disk Drive Interface Specification DVD+RW DVD-RWDVD-RAM Super-Multi Drive Module Audio Interface SpecificationSystem Board Major Chips Controller Battery Specification Cell Keyboard SpecificationLCD 15.6 HD Specification TBD Navigating the Bios Utility Bios Setup Utility 5SW1P2VA InformationHL-DT-ST Dvdram GT20N Parameter Description Main DisabledParameter Description Format/Option Parameter Description Submenu Items Advanced Aspm IGD-TVAspm L1 URR Security Disabled orParameter Description Option Clear or Set Removing a Password Setting a Password Continue Changing a Password Acpi S3 Power Acpi S3 USB Cdrom Boot Exit Advanced Security Power Boot Exit Exit Saving Changes Bios Flash Utilities DOS Flash Utility Chapter WinFlash Utility Remove HDD Password Remove HDD/BIOS Password UtilitiesPassword UnlockHD Cleaning Bios Passwords Removing Bios Passwords Using Boot Sequence Selector Input Using DMIToolsOutput Using the ICW50/ICY70 LAN MAC Utility Chapter Disassembly Requirements Machine Disassembly and Replacement Disassembly Process Pre-disassembly InstructionsGeneral Information Main Screw List Quantity Part Number External Modules Disassembly Flowchart External Module Disassembly ProcessScrew List Step Quantity ODD Removing the Battery Pack Removing the Express Dummy Card Removing the SD Dummy Card Wlan HDD Removing the Lower Covers Step Size Quantity Screw Type ODD Module M2.5*5 Removing the Optical Drive Module Step Size Quantity Screw Type ODD Bracket M2*3 Removing the Hard Disk Drive Module Step Size Quantity Screw Type HDD Carrier M3*3 Removing the Dimm Modules Step Size Quantity Screw Type Wlan Module M2*3 Removing the Wlan Module Chapter Upper Cover Disassembly Flowchart Main Unit Disassembly Process VGA/MXM Lower Cover Disassembly FlowchartCpuscrewsprin Removing the Keyboard Chapter Step Size Quantity Screw Type Removing the Upper Cover Step Size Quantity Screw Type Keyboard Cover M2.5*5 Page Securing Clip Removing the Media BoardPage Removing the Launch Board Page Step Size Quantity Screw Type Speaker Module M2.5*3 Removing the Speaker ModulePage Removing the Power Saving Board Page Removing the Volume Control Board Removing the MIC Board Step Size Quantity Screw Type Button Board M2.5*5 Removing the Button Board and Finger Print Reader Finger Print M2*3 Reader Chapter Remove the Finger Print Reader from the bracket as shown Removing the TouchPad Bracket Remove the two screws securing the TouchPad Bracket in place Removing the LCD Module Chapter Page Chapter Step Size Quantity Screw Type LCD Module M2.5*5 Chapter Step Size Quantity Screw Type Right Saddle M2.5*5 Removing the Saddles Lift the right side Saddle clear of the Lower Cover as shown Step Size Quantity Screw Type USB Board M2.5*3 Removing the USB Board Removing the Subwoofer Removing the Bluetooth Module Disconnect the cable from the Bluetooth Module Removing the Card Reader Board Step Size Quantity Screw Type Hinge Wells M2.5*3 Removing the Hinge Wells Step Size Quantity Screw Type Mainboard M2.5*3 Removing the Mainboard Removing the RTC Battery Removing the VGA/MXM Card Step Size Quantity Screw Type Thermal Module Removing the Thermal ModulePage Removing the CPU Replacing the CPU Main Module Reassembly Procedure Replacing the Thermal Module Replacing the VGA/MXM Card Replacing the Mainboard Replacing the Card Reader Board Replacing the Hinge Wells Connect the Bluetooth cable to the module as shown Replacing the Bluetooth Module Replacing the USB Board Replacing the Subwoofer Replacing the Saddles Replacing the LCD Module Replacing the TouchPad Bracket Step Size Quantity Screw Type Replacing the Button Board and Finger Print Reader Page Adhire the Button Board FFC to the back of the touchpad Replacing the MIC Board Replacing the Volume Control Board Replacing the Power Saving Board 118 Chapter Replacing the Speaker Module 120 Chapter Replacing the Launch Board 122 Chapter Replacing the Media Board Replacing the Upper Cover Page 126 Chapter Step Size Quantity Screw Type Replacing the Keyboard Replacing the Wlan Module 130 Chapter Replacing the Hard Disk Drive Module Replacing the Dimm Modules Replacing the ODD Module Replacing the SD Dummy Card Replacing the Lower Covers Replacing the PCI Express Dummy Card Replacing the Battery Symptoms Verified Go To Common Problems Computer Shutsdown Intermittently Power On Issue No Post or Video No Display Issue Abnormal Video Display Random Loss of Bios Settings Built-In Keyboard Failure LCD Failure Internal Speaker Failure TouchPad Failure Sound Problems Select Set up microphone Microphone ProblemsInternal Microphone Failure Select Repair your computer HDD Not Operating CorrectlySelect Startup Repair ODD Not Operating Correctly ODD Failure Discs Do Not Play Drive Not Detected Modem Function Failure Wireless Function Failure External Mouse Failure Thermal Unit Failure Other Failures Undetermined Problems Intermittent ProblemsDimm Chipset Post Codes Post CodesPort 80 Code Driver Name SNP Code Beeps Post Routine Description Code Beeps Post Routine Description Display prompt Press F2 to enter Setup Code Beeps For Boot Block in Flash ROM Code Beeps For Boot Block in Flash ROM Top View Bottom View LS-5011P LCD Backlight Board Backlight on/off Connector LED1 LS-5012P Launch BoardLED2 LED3 LS-5013P Media Board LS-5014P VR Board LTT-SS801U-13LGA28 LS-5015P Finger printer Board JP1 LS-5016P USB BoardANT1 JMINI1 LS-5017P IO BoardJREAD1 JMINI2 LS-5018P Power Saving Board LS-5019P Touch pad button Board Clearing Password Check Clearing Password Check and Bios RecoverySteps for Clearing Bios Password Check Hardware Open Gap Description Bios Recovery Boot Block Bios Recovery by Crisis DiskBios Recovery Hotkey Steps for Bios Recovery by Crisis Disk 170 Chapter FRU Field Replaceable Unit List Main Assembly Aspire 5940G Series Exploded DiagramsDescription Acer P/N Base Assembly Description Acer Part Number Aspire 5940G Series FRU List FFC Power Saving CableUSB Cable RF Cable VR Button Volume Control HDD ConnectorHDD Door Mini Door Chapter 177 ODD BEZEL-SM ODD SUPER-MULTI Drive ModuleODD Bracket ODD BD Combo Module LCD COVER-IMRBLUE Assy LED Module 15.6W Wxga GlareAntenna WIMAX-MAIN Antenna WIMAX-AUX Category Description Acer P/N Screw Screw List Chapter 181 Aspire 5940G Series Appendix aModel Country Acer Part No Description TWN Gctwn W7HP64EMATME2 MCW7HP64RUATRU1 MC W7HP64RUATUK1 MC W7HP64EMATID1 MC W7HP64EMATTH1 MC W7HP64EMA1ME2 MC W7HP64EMATTR1 MCW7HP64EMATME3 MC W7HP64EMATZA4 MC W7HP64EMATME6 MCW7HP64EMATME4 MC Ukraine LX.PFQ02.059 AS5940G-724G50Bi Italy LX.PFQ07.013 AS5940G-724G50Bn W7UT64ATIT1 W7HP64EMATDZ1 MC W7HP64EMATME9 MCW7HP64EMATZA1 MC Luxembour LX.PFQ02.027 AS5940G-724G50Wn W7HP64ATLU3 Hungary LX.PFQ02.042 AS5940G-724G50Wn W7HP64ATHU1 Spain LX.PFQ02.043 AS5940G-724G50Wn W7HP64ATES1 Memory Chip ModelNLED15.6WXGAG SO2GBIII10 Appendix a 194 195 NBDRW4XS Media Extra SW1 2GB ProcessorNBDCB4XS NSM8XS AS5940G-724G50Bn N500GB5.4KS 199 Model Card Reader Wireless LAN1 Bluetooth 201 Model Card Reader Wireless LAN1 Bluetooth 203 Appendix a 204 Appendix B Test Compatible Components Microsoft Windows 7 Environment Test BatteryVendor Description ITEMNo Adapter Audio Codec Camera Vendor Description ITEMNo Finger Print Vendor Description ITEMNo 210 Keyboard Memory Appendix B 213 Vendor Description ITEMNo NB Chipset Appendix B 215 Sata Hlds NBDCB4XS Remote Controller Wireless LAN WiFi AntennaSoftware TV Antenna 218 Appendix C Online Support Information 220 Index ODD 223 224