Wireless Function Failure, Thermal Unit Failure | Acer 5552, 5252

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:

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:

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Chapter 4

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Acer 5252, 5552G manual Wireless Function Failure, Thermal Unit Failure

Contents

Aspire 5252/5552/5552G Series Service Guide Revision History Copyright IIIPage Conventions Preface Table of Contents Table of Contents Troubleshooting 149 Microsoft Windows 7 Environment Test Table of Contents Features Chapter Storage GraphicsAudio Aspire 5252/5552 Optical Media Drive Dimensions and WeightPower Subsystem Communication Software Special Keys and ControlsInterface Environment WarrantyOptional Items System Block Diagram Discrete Model UMA Model ATI SB820M Icon Description Your Acer Notebook tourFront View HDD Rear View Left View Right View Hdmi Icon Function Description IndicatorsBase View Touchpad Basics Function Left Button Right Button Main Touchpad Lock key Description Using the KeyboardLock Keys and embedded numeric keypad Windows Keys Key Description Hot Keys Hotkey Icon Function Description CPU Hardware Specifications and ConfigurationsUMA AMD RS880M Northbridge SpecificationSouthbridge Specification AMD SB820M Bios 2MB Ddriii SO-DIMM System Memory SpecificationLAN Interface Specification Memory Combinations Slot Total Memory Wireless Module 802.11b/g/n Specification Bluetooth Interface Specification DVD-R 3.9GB, 4.7GB DVD-R DL, DVD-RW, DVD-RAM, DVD+R, DVD+R Super-Multi Drive Interface SpecificationBD Drive Interface Specification Hlds BD Combo Drive Tray DL 4X CT10 LF, Panasonic BD Combo Video Interface Specification Audio Subsystem SpecificationGraphics Controller Specification Discrete Specification Discrete Pcmcia Port Not available in this model Specification USB Port SpecificationHdmi Port Specification System Board Major Chips Specification Discrete Battery Specification Keyboard SpecificationPorts Specification Samsung LTN156AT02-A04 LED SpecificationCcfl Specification Samsung LTN156AT01-A01 Camera Specification LCD Inverter SpecificationGraphic Driver Supported Resolution Bits AC Adapter Specification Power Specification Legacy Acpi Mode Power Management Card Reader Specification DiscreteSystem LED Indicator Specification Chapter Bios Setup Utility Navigating the Bios Utility Parameter Description Aspire AS5552/AS5552G BiosInformation Uuid Parameter Description Format/Option DisabledMain Parameter Description Option Disabled orSecurity Clear or Set Setting a Password Removing a Password Changing a Password Continue Boot USB CD/DVD ROM Information Main Security Boot Exit Exit Saving Changes Exit Bios Flash Utilities USB HDD DOS Flash UtilityUSB FDD Page WinFlash Utility Password Remove HDD/BIOS Password UtilitiesRemove HDD Password UnlockHD Removing Bios Passwords Cleaning Bios Passwords Using Boot Sequence Selector Output Using DMIToolsInput Machine Disassembly and Replacement Disassembly Requirements Pre-disassembly Instructions Disassembly Process Main Screw List Quantity Part Number Screw List Step Quantity External Module Disassembly ProcessExternal Modules Disassembly Flowchart Removing the Battery Pack Removing the SD Dummy Card Removing the Keyboard Chapter Removing the ODD Module Step Size Quantity Screw Type ODD Module M2.5*8 Step Size Quantity Screw Type ODD Bracket M2*3 Removing the Logic Lower Door Step Size Quantity Screw Type Removing the 3G Cover Discrete Only Step Size Quantity Screw Type 3G Cover M2.5*8 Removing the Dimm Module Removing the Wlan Module Step Size Quantity Screw Type Wlan Module M2*3 Detach the Wlan module from the Wlan socket Chapter Removing the HDD Module Step Size Quantity Screw Type HDD Carrier M3*3 Removing the RTC Battery UMA Only Main Unit Disassembly Process Main Unit Disassembly Flowchart Removing the Upper Cover Page Chapter Step Size Quantity Screw Type Upper Cover M2.5*5 Removing the Speaker Module Removing the Power Board Step Size Quantity Screw Type Power Board M2*3 Removing the Touchpad FFC Removing the Card Reader Board Discrete Only Remove one 1 screw from the card reader board Removing the USB Board Step Size Quantity Screw Type USB Board M2*3 Removing the Bluetooth Module Lift the Bluetooth cable from the cable guides Removing the ODD Connector Board UMA Only Removing the Mainboard UMA Chapter Page Removing the Thermal Module Carefully lift the thermal module clear of the mainboard Removing the CPU Removing the LCD Assembly Step Size Quantity Screw Type LCD Assembly M2.5*8 Remove the LCD assembly from the lower cover Chapter Removing the DC-IN Assembly LCD Module Disassembly Process LCD Module Disassembly Flowchart Removing the LCD Bezel Step Size Quantity Screw Type LCD Bezel M2.5*6 Removing the Camera Module Removing the Inverter Board LCD Only Step Size Quantity Screw Type Inverter Board M2.5*5Page Removing the LCD/LED Panel Step Size Quantity Screw Type LCD/LED Panel M2.5*5 Removing the LCD Brackets Step Size Quantity Screw Type LCD Brackets M2*3 Removing the Lvds cable LCD LED Removing the Microphone Cable Lift the microphone set clear of the panel Removing the Antennas 100 Chapter LCD Module Reassembly Procedure Replacing the Antennas 102 Chapter Replacing the Microphone Cable 104 Chapter Replacing the Lvds Cable Replacing the LCD Brackets Replacing the LCD/LED Panel Replacing the Inverter Board LCD Only Page Replacing the Camera Module Replacing the LCD Bezel Main Module Reassembly Procedure Replacing the DC-IN Assembly Replacing the LCD Assembly 114 Chapter Page Replacing the CPU Replacing the Thermal Module Mastro B6 118 Chapter Chapter 119 Replacing the Mainboard UMA 122 Chapter Replacing the ODD Connector Board UMA Only Replacing the Bluetooth Board Replacing the USB Board 126 Chapter Replacing the Card Reader Board Discrete Only 128 Chapter Replacing the Touchpad FFC Replacing the Power Board Replacing the Speaker Module Replacing the Upper Cover Page 134 Chapter Step Size Quantity Screw Type Upper Cover M2.5*5 Replacing the RTC Battery UMA Only Replacing the HDD Module 138 Chapter Replacing the Wlan Module Replacing the Dimm Modules Replacing the 3G Cover Discrete Only Replacing the Lower Logic Door Replacing the ODD Module 144 Chapter Replacing the Keyboard Replacing the SD Dummy Card Replacing the Battery 148 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 Select Set up microphone Sound ProblemsMicrophone Problems Select Startup Repair HDD Not Operating CorrectlySelect Repair your computer ODD Failure ODD Not Operating Correctly Discs Do Not Play Drive Not Detected Wireless Function Failure Thermal Unit Failure External Mouse Failure Other Failures Dimm Intermittent ProblemsUndetermined Problems Post Code Range Phase Post Codes Peirecoverymedianotfound PEI Peienterrecoverymode PEIPeirecoverymediafound PEI Peirecoveryloadfiledone PEI Bdsentersetup BDS Bdsenumerateallbootoption BDSBdsendofbootselection BDS Bdsenterbootmanager BDS Smmacpidisablestart SMM Smmacpienablestart SMMSmmacpienableend SMM Smmacpidisableend SMM Top View Discrete Bottom View Discrete Top View UMA Bottom View UMA JRJ45 Power BoardDiscrete LED6 SW2 LED7 Wwan LED SW3 LED8 Power BoardUMA Card Reader Board Discrete only USB ConnectorUSB Board JUSB1/JUSB2 Steps for Clearing Bios Password Check Clearing Password Check and Bios RecoveryClearing Password Check Clear Cmos Jumper Bios Recovery Hotkey Bios Recovery by Crisis DiskBios Recovery Boot Block Steps for Bios Recovery from USB Storage 176 Chapter FRU Field Replaceable Unit List Description Acer Part No Aspire AS5552/AS5552G Exploded DiagramsMain Assembly Upper Assembly LCD Assembly LED Assembly Category Description Acer Part No BatteryAspire AS5552/AS5552G FRU List Adapter Cable CASE/COVER/BRACKET Assembly CPU/PROCESSOR HDD/HARD Disk Drive 22A0RT0, ML320M,WD Sata 8MB LF F Keyboard BD Combo Drive DVD RW Drive LCD Ccfl LCD LPL 15.6W Wxga Glare Ccfl LCD CMO 15.6W Wxga GlareCost Ccfl LCD Samsung 15.6W Wxga Glare ANTENNA*2, CCD 1.3M, Silver LCD Cover IMR-SILVER ANTENNA*2, CCD 1.3M, Brown LCD Cover IMR-BROWN ANTENNA*2, CCD 1.3M, RED LCD Cover IMR-RED Assy LED Module 15.6W Wxga Glare W ANTENNA*2, CCD 1.3M, Black LED Cover IMR-BLACK LED LCD Samsung 15.6W Wxga Glare LED Cable for W/CMOSLED Bracket R&L LED LCD BOE 15.6W Wxga Glare ANTENNA*2, CCD 1.3M, Brown LED Cover IMR-BROWN ANTENNA*2, CCD 1.3M, RED LED Cover IMR-RED Mainboard Mainboard AS5552 AMD RS880M LF Memory Heatsink Speaker Miscellaneous Screw List Screw Model Country Acer Part No Description Appendix aAS5252 Appendix a Appendix a 202 Model Country Acer Part No Description Appendix a 204 AAP Memory Model CountryCPU LCD VGA Chip AMDV140 NLED15.6WXGAG UMA SO2GBIII10 Appendix a 208 Turkey AAP340 Appendix a 210 Extra SW1 Model Country MemoryHDD 1GB ODD Appendix a 212 AS5552 ACLA-Spain N320GB5.4KS Appendix a 214 Model Country Card Reader Wireless LAN1 Bluetooth Appendix a 216 Italy In-1 card reader 3rd WiFi 2x2 BGN N854G50Mnkk AS5552 Appendix a 218 Belgium In-1 card reader 3rd WiFi 2x2 BGN P343G32Mnkk AS5552 AS5552G W7HB64SCASCN1 MC W7HB64RUASRU1 MC Appendix a 222 China LX.R4A01.001 AS5552G-N852G32Mnrr Appendix a 224 Model Country Acer Part No Description CPU LCD VGA Chip NLED15.6WX Madisonpro 1G-DDR3 Appendix a 228 Denmark APN950 Model Country Memory HDD 1 GB P543G32Mnkk AS5552G Appendix a 232 N953G32Mnkk AS5552G Model Country Extra SW1 Card Reader Wireless Bluetooth LAN1 Turkey McAfee In-1 card 3rd WiFi P543G32Mnkk Reader Appendix a 236 France McAfee In-1 card 3rd WiFi N854G50Mnkk Reader Appendix a 238 Test Compatible Components Appendix B Brand Type Description Acer Part No Adapter BatteryMicrosoft Windows 7 Environment Test Audio Codec Brand Type Description Acer Part No HDD MEM KeyboardLAN NB Chipset SB Chipset WiFi AntennaWireless LAN Software 244 Online Support Information Appendix C 246 Index 248 Removing 58, 62 250