Common Problems, Symptoms Verified Go To | Acer 5942G specs

Chapter 4

Troubleshooting

Common Problems

Use the following procedure as a guide for computer problems.

NOTE: The diagnostic tests are intended to test only Acer products. Non-Acer products, prototype cards, or modified options can give false errors and invalid system responses.

1.Obtain the failing symptoms in as much detail as possible.

2.Verify the symptoms by attempting to re-create the failure by running the diagnostic test or by repeating the same operation.

3.Use the following table with the verified symptom to determine which page to go to.

Symptoms (Verified)	Go To

Power On Issue	Page 132
No Display Issue	Page 133

LCD Failure	Page 135

Internal Keyboard Failure	Page 135

TouchPad Failure	Page 136

Internal Speaker Failure	Page 136

Internal Microphone Failure	Page 138

ODD Failure	Page 140

Modem Failure	Page 143

WLAN Failure	Page 143

Thermal Unit Failure	Page 144

Other Functions Failure	Page 145

Intermittent Failures	Page 146

Undermined Failures	Page 146

4.If the Issue is still not resolved, see “Online Support Information” on page 231.

Chapter 4

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Acer 5942G manual Common Problems, Symptoms Verified Go To

Contents

Aspire 5942/5942G Series Service Guide Revision History III Copyright Conventions Preface Page Table of Contents Viii Troubleshooting 131 Microsoft Windows 7 Environment Test Aspire 5942 Series Table of Contents Chapter Features Communication Dimensions and WeightPower subsystem Audio Environment Interface Clock Generator System Block Diagram Icon Description Your Acer Notebook tourFront View HDD1 Left View Closed Front ViewRear View Hdmi 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 US dollar sign Euro symbolSpecial Keys Hardware Specifications and Configurations 8GB System Memory Specification2MB 4GB 0MB LAN Interface SpecificationWireless Module Specification Memory Combinations Slot Total Memory Specification Drive Format Hard Disk Drive Interface SpecificationPerformance Specifications DC Power Requirements Blueray Combo Module Blueray DriveBD-RE, BD-R, BD-ROM DVD-R, DVD-RW, +R, +RW, CD-R, CD-RW System Board Major Chips Controller Audio Interface SpecificationSuper-Multi Drive Module LCD 15.6 HD Specification Keyboard SpecificationBattery Specification Cell Chapter Navigating the Bios Utility Bios Setup Utility Uuid InformationParameter Description Parameter Description Format/Option DisabledMain Clear or Set Disabled orSecurity Parameter Description Option Removing a Password Setting a Password Continue Changing a Password USB Cdrom Boot Cmos Exit Bios Flash Utilities DOS Flash Utility Chapter WinFlash Utility UnlockHD Remove HDD/BIOS Password UtilitiesRemove HDD Password Password Cleaning Bios Passwords Removing Bios Passwords Using Boot Sequence Selector Output Using DMIToolsInput Using the ICW50/ICY70 LAN MAC Utility Chapter Disassembly Requirements Machine Disassembly and Replacement Main Screw List Quantity Part Number Pre-disassembly InstructionsDisassembly Process General Information ODD External Module Disassembly ProcessExternal Modules Disassembly Flowchart Screw List Step Quantity 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 Cpuscrewsprin Lower Cover Disassembly FlowchartVGA/MXM 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 Step Size Quantity Screw Type Power Saving M2.5*3 Board Removing the Power Saving BoardPage Step Size Quantity Screw Type Volume Control M2.5*3 Board 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 Step Size Quantity Screw Type Finger Print M2*3 Reader Remove the Finger Print Reader from the bracket as shown Removing the TouchPad Bracket Step Size Quantity Screw Type TouchPad M2.5*3 Bracket 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 Step Size Quantity Screw Type Card Reader M2.5*3 Board 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 TouchPad M2.5*3 Bracket Replacing the Button Board and Finger Print Reader Page Adhere the Button Board FFC to the back of the touchpad Replacing the MIC Board Replacing the Volume Control Board Replacing the Power Saving Board 114 Chapter Replacing the Speaker Module 116 Chapter Replacing the Launch Board 118 Chapter Replacing the Media Board Replacing the Upper Cover Page 122 Chapter Step Size Quantity Screw Type Replacing the Keyboard Replacing the Wlan Module 126 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 Internal Microphone Failure Microphone ProblemsSelect Set up microphone Select Startup Repair HDD Not Operating CorrectlySelect Repair your computer 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 Dimm Intermittent ProblemsUndetermined Problems Post Codes Post Code Range Phase Peienterrecoverymode PEI Peicpuhtreset PEIPeimemoryinstall PEI Peiswitchstack PEI Dxetcgdxe DXE DXECF9RESETDxesmmaccess DXE Dxesmarttimerinit DXE Bdsendofbootselection BDS Bdsinstallhotkey BDSBdsbeforepciioinstall BDS Bdsenumerateallbootoption BDS Smmacpienablestart SMM Bdsrecoverystartflash BDSPostbdsnobootdevice Postbdsjumpbootsector Smmacpidisableend SMM Smmacpidisablestart SMM Top View Bottom View LED2 LS-5511P Switch BoardLED3 SW3 LS-5512P Media Board ANT1 LS-5513P TV-Tuner Board JMINI1 LS-5514P Card Reader BoardJMINI2 JREAD1 LS-5515P Touch Pad Button Board Top View Bottom View Description LS-5516P Power Saving Board LS-5517P Volume Board LS-5518P Color Engine Board Hardware Open Gap Description Clearing Password Check and Bios RecoveryClearing Password Check Steps for Clearing Bios Password Check 164 Chapter Steps for Bios Recovery by Crisis Disk Bios Recovery by Crisis DiskBios Recovery Boot Block Bios Recovery Hotkey 166 Chapter FRU Field Replaceable Unit List Description Acer P/N Aspire 5942 Series Exploded DiagramsMain Assembly Base Assembly Description Acer Part Number Aspire 5942 Series FRU List USB Cable Power Saving CableBlue Tooth Cable FFC Mini Door HDD ConnectorVR Button Volume Control HDD Door Keyboard ODD BD Combo Module ODD SUPER-MULTI Drive ModuleODD BEZEL-SM ODD Bracket Antenna WIMAX-MAIN ODD BD RW ModuleAssy LED Module 15.6W Wxga Glare LCD COVER-IMRBLUE Speaker R&L CPU Thermal Moudle CAFCPU Thermal Moudle Arrandale MIC Screw M2.5D 5L K 5.5D ZK NL CR3 Screw ListCategory Description Acer P/N Screw Model Country Acer Description Appendix aAspire 5942 Series W7HP64EMATMY1 MC China W7HP64EMATME2 MC W7UT64EMATPH1 MC W7HP64EMATME6 MC W7HP64EMATME9 MCW7HP64EMATME3 MC Emea LX.PM AS5942G-728G64Bn W7HP64ATGR1 MC AS5942G-724G64Bn EM W7HP64EMATZA4 TWN Gctwn LX.PM W7HP64EMATTR1 MCW7HP64EMATZA2 MC LX.PMT S2.PM Emea LX.PMT AS5942G-434G64Bn W7HP64ATGR1 MC W7HP64EMATZA4 MC W7HP64EMATDZ1 MCW7HP64EMATZA1 MC AS5942G-434G64Mn W7HP64ATPL1 MC AS5942G-434G64Mn W7HP64ATES1 MC AS5942G-334G50Mn W7HP64ATDE1 MC AS5942G-334G50Mn W7HP64ATGB1 MC Gctwn S2.PM Gctwn S2.PMT AS5942G-434G64Mn W7UT64ATES1 MC AS5942G-334G32Mn W7HP64ATEU5 MC LX.PS5 VGA Chip Model BOM Name 334G50Mi PbkQV3 Appendix a 200 334G64Bn PbkQV3 434G50Mi PbkQV3 434G64Mn PbkV3 436G64Mn PbkV3 524G64Bn PbkV3 724G50Mn PbkV3 207 AS5942GMADISONPRO1GBC AS5942G AS5942GMADISONPRO1GBCb Ci3330M DDR3 AS5942GMADISONPRO1GBTCParkxt Model Memory Card Reader Wireless 1GB N320GB5 1-Build 3rd WiFi 334G50Mn 4KS 2x2 BGN 1-Build 3rd WiFi 334G64Bn 4KS 2x2 BGN AS5942G 1-Build 3rd WiFi 434G50Mn 4KS 2x2 BGN AS5942G 1-Build INT6300H 434G64Mn 4KS AS5942G 1-Build 3rd WiFi 436G64Mn 4KS 2x2 BGN AS5942G 1-Build 3rd WiFi 524G50Mn 4KS 2x2 BGN AS5942G 1-Build 3rd WiFi 724G50Mn 4KS 2x2 BGN AS5942G 1-Build 3rd WiFi 724G64Bn 4KS 2x2 BGN Appendix a 220 1-Build INT6200H 724G64Bn 4KS AS5942G 1-Build INT6200H 726G64Mi 4KS AS5942G 1-Build INT6200H 728G64Bn 4KS AS5942G 1-Build INT6200H 728G64Mi 4KS AS5942G Appendix B Test Compatible Components Microsoft Windows 7 Environment Test Keyboard Type Description NB Chipset TV Tuner Remote ControllerTV Antenna 230 Appendix C Online Support Information 232 Index ODD 235 236