Wireless Function Test Failure | Acer EM250 manual

Wireless Function Test Failure

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

	Start
		OK
	Check WL		Re-assemble
	Check WL	NG	the antenna to
	antenna to	NG	WL card
	antenna to		WL card
	WL card
	OK	OK
	Check		Swap The
	Check	NG	antenna
	antenna	NG
	antenna

OKOK

Swap the WL

Check WLNGcard card

Swap M/B

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Chapter 4

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Acer EM250 manual Wireless Function Test Failure

Contents

EMachines eM250 Series Service Guide Revision History Copyright III Conventions Preface Page Table of Contents Troubleshooting 119 Viii Jumper and Connector Locations 143 Windows XP Environment Test Table of Contents Features Chapter Power CommunicationPrivacy control Special keys and controls System Block Diagram ICH7M Icon Description Your eMachines Notebook tourFront View Closed Front View Left View Right View Rear and Base View HDD IndicatorsIcon Function Description TouchPad Basics Function Left Button Right Button Main TouchPad Using the Keyboard Lock Keys and embedded numeric keypad Windows Keys Key Description Hot Keys Hotkey Icon Function Description US dollar sign Euro symbolSpecial Keys Processor Specifications Hardware Specifications and ConfigurationsProcessor Specification Hard Disk Drive Interface Specification System Memory SpecificationSystem Storage Specification LED Specification LTN101NT02-A01, LPL LP101WSA-TLA1 Audio Codec and Amplifier Specification LAN Interface SpecificationKeyboard Specification Lvds Mini Card Specification Camera Specification3G Card Specification Wireless LAN Specification Chapter Bios Setup Utility Navigating the Bios Utility Uuid InformationParameter Description Main Parameter Description Format/Option Enabled or SecurityParameter Description Option Clear or Set Setting a Password Removing a Password Changing a Password Continue Boot USB Cdrom Exit Exit Exit Saving Changes Bios Flash Utility DOS Flash Utility USB HDDPage WinFlash Utility Remove HDD/BIOS Password Utilities Removing HDD PasswordPassword UnlockHD Removing Bios Passwords Cleaning Bios Passwords Miscellaneous Utilities Using Boot Sequence SelectorUsing DMITools Using the LAN MAC Utility Example 1 Read DMI Information from Memory Execute MAC.BAT to write MAC information to eeprom Chapter Chapter Disassembly Requirements Related Information Pre-disassembly Instructions Disassembly ProcessGeneral Information Main Screw List Quantity Part Number Screw List Step Quantity External Module Disassembly ProcessExternal Modules Disassembly Flowchart Removing the Battery Pack Removing the Lower Covers Step Size Quantity Screw Type Lower Covers M2*4 Chapter Removing the Hard Disk Drive Module Step Size Quantity Screw Type HDD Module M2*4 Step Size Quantity Screw Type HDD Carrier M3*3 Removing the Dimm Module Removing the 3G Module Step Size Quantity Screw Type 3G Module M2*3 Detach the 3G Module from the socket Chapter Main Unit Disassembly Process Main Unit Disassembly Flowchart Removing the Keyboard Disconnect the FFC and remove the Keyboard Removing the Upper Cover Step Size Quantity Screw Type Chapter Step Size Quantity Screw Type Upper Cover M2*4 Chapter Removing the Power Board Step Size Quantity Screw Type Power Board M2*3 Chapter Removing the Bluetooth Module Removing the TouchPad FFC Removing the Wlan Board Step Size Quantity Screw Type Wlan Board M2*3 Remove the Wlan Board from the Mainboard Removing the USB Board Step Size Quantity Screw Type USB Board M2*4 Chapter Removing the Mainboard Step Size Quantity Screw Type Mainboard M2*4 Page Removing the RTC Battery Removing the Thermal Module Step Size Quantity Screw Type Thermal Module M2*4 Lift the Thermal Module clear of the Mainboard Removing the Speaker Module Step Size Quantity Screw Type Speaker Module M2*4 Chapter Removing the LCD Module Chapter Step Size Quantity Screw Type LCD Module M2*4 Removing the AC Power Jack LCD Module Disassembly Process LCD Module Disassembly Flowchart Removing the LCD Bezel Step Size Quantity Screw Type LCD Bezel M2*4Page Removing the Camera Board Removing the LCD Panel Step Size Quantity Screw Type LCD Panel M2*4 Chapter Removing the LCD Brackets and FPC Cable Step Size Quantity Screw Type LCD Brackets M2*3 Left Right Bracket Step Size Quantity Screw Type Hinge Covers M2*3 Removing the Antennas Chapter Page LCD Module Reassembly Procedure Replacing the AntennasPage 3G and Wlan Models Wlan Only Models Replacing the LCD Cable and Brackets Left Right Bracket Page Replacing the LCD Panel Replacing the Camera Board Connect the Camera cable as shown Replacing the LCD Bezel Main Module Reassembly Procedure Replacing the AC Power Jack Replacing the LCD Module Chapter Page Replacing the Speaker Module Replacing the Thermal Module Replacing the Mainboard Page Replacing the USB Board Replacing the Wlan Board Replacing the Bluetooth Module Replacing the TouchPad FFCPage Replacing the Power Board Page Replacing the Upper Cover Page Connect B to the Mainboard Replacing the Keyboard Replacing the 3G Module 114 Chapter Replacing the Dimm Module Replacing the Hard Disk Drive Module Replace the single screw to secure the HDD in place Replacing the Lower Covers Replacing the Battery Pack Common Problems Symptoms Verified Go To SW/B Power On IssueComputer 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 FFC Sound Problems Internal Speaker Failure 126 Chapter Internal Microphone Failure Microphone ProblemsSelect Set up microphone Select Startup Repair HDD Not Operating CorrectlySelect Repair your computer USB Failure Rightside Wireless Function Test Failure 3G Function Test Failure Switch Failure Power Button Failure Thermal Units Failure External Mouse Failure Other Failures Dimm Intermittent ProblemsUndetermined Problems Motherboard Cmos Discharge Post Code Reference Tables SecMemory Code Description BDS & Specific action Each Peim entry point used in 80PORT Each Driver entry point used in 80PORT CF9RESET BootpriorityFvbservice Smbios Legacybios LegacybiosplatformSetuputility Fwblockservice Each SmmDriver entry point used in 80PORT Top View Bottom View LED1 Power boardSW1 Card reader board JUSB2JREAD1 LED2 3GWWAN LED JSATA1 Clearing Password Check and Bios Recovery Clearing Password CheckSteps for Clearing Bios Password Check Hardware Open Gap Description Bios Recovery by Crisis Disk Bios Recovery Boot BlockBios Recovery Hotkey Steps for Bios Recovery by USB Flash Crisis Disk FRU Field Replaceable Unit List Description Part Number EMachines eM250 Exploded DiagramsMain Assembly Rear Assembly Upper Cover Assembly Lower Cover Assembly LCD Assembly Power Board EMachines eM250 FRU ListAcerPN Acer Description 04AC LF IO Board Blue Tooth CableDC-IN CABLE-30W IO Board Cable AcerPN Acer Description 42.S6802.004 HDD DOOR-BLACK 158 Chapter 159 LCD ANTENNA, CCD, BlackLCD Hinge Cover R-BLACK LCD Hinge Cover L-BLACK Screw List Acer Description Acer PN Model Definition and Configuration Appendix a EMachines eM250 Series Model eM250-01G16 Appendix a 166 Switzerl LX.N970 EM250-01G16i AOXPHeTCH1 UMACks 1*1G/160 Appendix a 168 Gctwn Model eM250-01G25i Model eM250-02G16i Appendix a 172 Test Compatible Components Appendix B Windows 7 Environment Test Vendor Type Description Item No Vendor Type Description Item No CPU Intel ATMN270B Intel ATMN280BHDD Seagate Toshiba Nanya SO1GBII6 Samsung SO512MBIIHynix SO512MBII 178 ICH7M UMA 180 Online Support Information Appendix C 182 Index 184 ODD 129 186