Acer Aspire 4540 Acer Aspire 4540 Series Service Guide
Acer Aspire 4540 Manual
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- Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 1
Aspire 4540/4240 Series Service Guide Service guide files and updates are available on the ACER/CSD web; for more information, please refer to http://csd.acer.com.tw PRINTED IN TAIWAN - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 2
Revision History Please refer to the table below for the updates made to this Series service guide. Date Chapter Updates II - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 3
purpose. Any Acer Incorporated software described in this manual is sold or licensed as is. Should the programs prove defective following their purchase, the buyer (and not Acer Incorporated, its distributor, or its dealer) assumes the entire cost of all necessary servicing, repair, and any - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 4
Conventions The following conventions are used in this manual: SCREEN MESSAGES Denotes actual messages that appear on screen. NOTE WARNING CAUTION IMPORTANT Gives bits and pieces of additional information related to the current topic. Alerts you to any damage that might result from - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 5
in the printed Service Guide. For ACER-AUTHORIZED SERVICE PROVIDERS, your Acer office may have a DIFFERENT part number code to those given in the FRU list of this printed Service Guide. You MUST use the list provided by your regional Acer office to order FRU parts for repair and service of customer - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 6
VI - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 7
keypad 11 Windows Keys 12 Special Key 13 Using the System Utilities 13 Acer GridVista (dual-display compatible 14 Hardware Specifications and Configurations 15 System Utilities 23 BIOS Setup Utility 23 Navigating the BIOS Utility 23 Information 24 Main 25 Security 26 Boot 29 Exit - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 8
129 Replacing the ODD Module 129 Replacing the Hard Disk Drive Module 130 Replacing the DIMM Modules 132 Replacing the WLAN Module 132 Replacing the Lower Covers 134 Replacing the SD Dummy Card 134 Replacing the Battery 135 Troubleshooting 137 Common Problems 137 Power On Issue 138 VIII - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 9
Board 163 LS-4495P USB Board 163 Clearing Password Check and BIOS Recovery 163 Clearing Password Check 164 BIOS Recovery by Crisis Disk 165 FRU (Field Replaceable Unit) List 167 Aspire 4540/4240 Exploded Diagrams 168 Main Module 168 Base 169 Aspire 4540/4240 FRU List 170 Screw List 178 - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 10
Table of Contents X - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 11
. Operating System • Genuine Windows® 7™ Platform • AMD Better By Design Program, featuring: • AMD Turion™ X2 Ultra dual-core processor* • AMD Turion™ X2 dual-core processor* • AMD Athlon™ 64 X2 dual-core processor* • Mobile AMD Sempron™ processor* • AMD M780G Chipset • Acer InviLink™ Nplify™ 802 - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 12
STAR®* Special keys and controls • 86-/87-/91-key keyboard • Touchpad pointing device I/O interface • Acer Bio-Protection fingerprint reader • 5-in-1 card reader (SD/MMC/MS/MS PRO/xD) • USB 2.0 ports•HDMI™ port with HDCP support • External display (VGA) port • Headphones/speaker/line-out jack with - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 13
• Modem (RJ-11) port • DC-in jack for AC adapter Environment • Temperature: • Operating: 5 °C to 35 °C • Non-operating: -20 °C to 65 °C • Humidity (non-condensing): • Operating: 20% to 80% • Non-operating: 20% to 80% NOTE: Items marked with * denote only selected models. The specifications listed - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 14
System Block Diagram 4 Chapter 1 - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 15
certain models). Internal microphone for sound recording. Display screen Power button HDD Num Lock Also called Liquid-Crystal Display (LCD), displays computer output (Configuration may vary by models). Turns the computer on and off. Indicates when the hard disk drive is active. Lights up when Num - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 16
light shows amber when the battery is charging. 2. Fully charged: The light shows blue when in AC mode. The left and right buttons function like the left and right mouse buttons. *The center button serves as Acer BioProtection fingerprint reader supporting Acer FingerNav 4-way control function (only - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 17
Left View No. 1 2 3 5 4 6 7 Icon HDMI Item DC in jack Ethernet (RJ-45) port External display (VGA) port USB 2.0 port HDMI port USB 2.0 port Headphones/ speaker/line-out jack with S/PDIF support Microphone jack Description Connects to an AC adapter Connects to an Ethernet 10/100/1000-based - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 18
USB mouse, USB camera). Optical drive Internal optical drive; accepts CDs or DVDs. Optical disk access Lights up when the optical drive is active. indicator Optical drive eject Ejects the optical disk from the drive. button Emergency eject hole Ejects the optical drive tray when the computer - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 19
cover or obstruct the opening of the fan. Easy-Launch Buttons Located beside the keyboard are application buttons. These buttons are called easy-launch buttons. They are: WLAN, Internet, email, Bluetooth, Arcade and Acer Empowering Technology. The mail and Web browser buttons are pre-set to email - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 20
to the left and right buttons on a mouse. Tapping on the touchpad is the same as clicking the left button. • Use Acer Bio-Protection fingerprint reader (3) supporting Acer FingerNav 4-way control function (only for certain models) or the 4-way scroll (3) button (only for certain models) to scroll up - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 21
embedded numeric keypad, separate cursor, lock, Windows, function and special keys. Lock Keys and embedded numeric keypad The keyboard has three lock keys which you can toggle be to connect an external keypad. When Scroll Lock is on, the screen moves one line up or down when you press the up or down - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 22
keyboard has two keys that perform Windows-specific functions. Key Description Windows key Pressed alone, this key has the same effect as clicking on the Windows >: Open or close the Start menu < > + : Display the desktop < > + : Open Windows Explore < > + : Search for a file or folder - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 23
center of the keyboard. NOTE: This function varies by the operating system version. Using the System Utilities Acer Bio-Protection (only for certain models) Acer Bio-Protection Fingerprint Solution is a multi-purpose fingerprint software package integrated with the Microsoft Windows operating system - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 24
monitor. Finally, click Apply to confirm the new settings and click OK to complete the process. Acer GridVista is a handy utility that offers four pre-defined display settings so you can view multiple windows on the same screen. To access this function, please go to Start´ All Programs and click on - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 25
Specification AMD Tigris UltraTurion-II, Turion-II, Athlon-II and Sempron • AMD RS880M • AMD SB710 • ENE KB926 for Keyboard Controller, Battery management Speed (rpm) 2800 3100 3400 4000 4500 SPL Spec (dBA) 28 31 34 37 40 • Throttling 50%: On =95°C; Off=87°C Acer P/N KC.SSI02.420 KC.AQL02.640 KC. - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 26
100°C • H/W Shut down: 92°C BIOS ROM Item BIOS Vendor BIOS Version BIOS ROM Type BIOS ROM Size Supported Protocols BIOS Password control Features Specification Phoenix BIOS V0.06 Flash ROM 1MB SMBIOS 2.3 Yes • Support Acer UI • Support multi-boot • Suspend to RAM (S3)/Disk (S4) • Various hot-keys - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 27
System Memory Item Memory Controller Memory Size DIMM socket number Supports Memory size per socket Support maximum memory size Support DIMM type Support DIMM Speed Support DIMM voltage Support DIMM package VGA Memory Memory module combinations Built-in 0MB (no on-board memory) 2 2GB - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 28
/s maximum +5.0V ± 5%. Item Vendor & Model Name Seagate ST9160310AS Capacity (MB) 160 Bytes per sector 512 Data heads 2 Drive Format Disks 1 Spindle speed 5400 (RPM) Performance Specifications Buffer size 8 MB Interface SATA Internal transfer 830 rate (Mbits/sec, max) I/O data - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 29
(MB) 160 Bytes per sector 512 Data heads 2 Drive Format Disks 1 Spindle speed (RPM) Performance Specifications Buffer size Interface Internal transfer MB) 160 Bytes per sector Data heads 2 Drive Format Disks 1 Spindle speed (RPM) Performance Specifications Buffer size Interface - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 30
CMO N140B6 - L02 Screen Diagonal (mm) 355.6 (14.0") Display Area (mm) 309.399(H) X 173.952(V) Display resolution (pixels) 1366 x 768 Pixel Pitch 0.2265(H) x 0.2265(V) Display 324.0(H) x 192.5(V) x 5.2(D) Electrical Interface LVDS Support Color 262,144 Viewing Angle (degree) Min. Typ - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 31
• Enable VoIP function • Subwoofer support LAN Item Type Features Specification Atheros AR8131-AL1E for Giga LAN Bluetooth Item Type Supported Protocols Transfer Rate (max.) Specification Foxconn Bluetooth FOX_BRM_2.0 F/W 300 1.1, 1.2 & 2.0 + EDR (Extended Data Rate) 3.0Mbps Chapter 1 21 - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 32
anti-spoofing protection • Fast Finger Motion Capture • TPM v1.2 support • Graphical or scroll navigation • Unequaled "ability to acquire" Atheros AR5B91 PIFA Specification Battery Item Vendor & model name Battery Type Pack capacity Number of battery cell Package configuration Specifications - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 33
Setup. Please also refer to Chapter 4 Troubleshooting when problem arises. To activate the BIOS Utility, press F2 during POST (when "Press to enter Setup" message is prompted on the bottom of screen). Press F2 to enter setup. The default parameter of F12 Boot Menu is set to "disabled". If you - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 34
: System BIOS Version: VGA BIOS Version: Serial Number: Asset Tag Number: Product Name: Manufacturer Name: UUID: AMD Turion(tm) X2 Ultra Dual-Core Processor ZM-84 2300 MHz WDC WD500BEVT-22ZAT0 WD-WXHZ08604954 MATSHITADB-CMB UJ130AS -(PM) -(PS) V0.06 V011.016.000.021.031105 Aspire 4240/4540 Acer - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 35
in this screen. Settings in boldface are the default and suggested parameter settings. Parameter System Time System Date System Memory Extended Memory Video Memory Quick Boot Network Boot F12 Boot Menu D2D Recovery SATA Mode Description Sets the system time. The hours are displayed with 24hour - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 36
SATA Port 0 Disk Status Set Supervisor Password Set User Password Set SATA Port 0 HDD Password Password on Boot: Clear Clear Clear [Enter] [ the user password. When user password is set, this password protects the BIOS Setup Utility from unauthorized access. The user can enter Setup menu only and - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 37
your password because the characters do not appear on the screen. 3. Press Enter. After setting the password, the enable the Password on boot parameter. 5. When you are done, press F10 to save the changes and exit the BIOS Setup Utility. Removing to "Clear". 4. When you have changed the settings, press - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 38
parameter to "Set". 5. If desired, you can enable the Password on boot parameter. 6. When you are done, press F10 to save the changes and exit the BIOS Setup Utility. If the verification is OK, the screen will display as following. Setup Notice Changes have been saved. [Continue] The password - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 39
operating system. Bootable devices includes the USB diskette drives, the onboard hard disk drive and the DVD drive in the module bay. Information M a i n PhoenixBIOS Setup Utility Security Boot Exit Boot priority order: 1: IDE0: WDC WD5000BEVT-22ZAT0-(S1) 2: IDE1: MATSHITABD-CMB UJ130AS-(S2 - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 40
screen allows you to save or discard any changes you made and quit the BIOS Utility. Information M a i n PhoenixBIOS Setup Utility Security Boot Exit changes to CMOS. Exit utility without saving setup data to CMOS. Load default values for all SETUP item. Load previous values from CMOS for all - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 41
becomes corrupted. Use the Phlash utility to update the system BIOS flash ROM. NOTE: If you do not have a crisis recovery diskette at hand, then you should create a Crisis Recovery Diskette before you use the Phlash utility. NOTE: Do not install memory-related drivers (XMS, EMS, DPMI) when you use - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 42
: Perform the following steps to use the DOS Flash Utility: 1. Press F2 during boot to enter the Setup Menu. 2. Select Boot Menu to modify the boot priority order, for example, if using USB HDD to Update BIOS, move USB HDD to position 1. Information M a i n PhoenixBIOS Setup Utility Security - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 43
The flash process begins as shown. 4. In flash BIOS, the message Please do not remove AC Power Source displays. NOTE: If the AC power is not connected, the following message displays. Plug in the AC power to continue. Chapter 2 33 - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 44
5. Flash is complete when the message Flash programming complete displays. WinFlash Utility Perform the following steps to use the WinFlash Utility: 1. Double-click the WinFlash executable.Click Start. 2. Make sure that AC power is plugged in and click OK to begin the update. 34 Chapter 2 - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 45
A progress screen displays. Chapter 2 35 - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 46
Utilities This section provide you with removing HDD/BIOS method: Remove HDD Password: If you key in the wrong HDD password three times, an error is generated along with an error code. Note down - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 47
a metal instrument to short the RST_RTC jumper. Cleaning BIOS Passwords To clear the password, perform the following steps: 1. From a DOS prompt, Execute clnpwd.exe 2. Press 1 or 2 to clean the desired password shown on the screen. The onscreen message determines whether the function is successful - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 48
to be used in the DMI pool for hardware management. When the BIOS displays Verifying DMI pool data it is checking the table correlates with the hardware before sending to the operating system (Windows, etc.). To update the DMI Pool, perform the following steps: 1. Enter into DOS. 2. Execute - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 49
Serial Number to EEPROM Input: dmitools /ws 01234567890123456789 Example 4: Write UUID to EEPROM Input: dmitools /wu Example 5: Write Asset Tag to EEPROM Input: dmitools /wa Acer Asstag Using the LAN MAC EEPROM Utility You can use the MAC.BAT utility to write the MAC.CFG file to the EEPROM under DOS - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 50
2. In DOS mode, run the MAC.BAT file to write MAC values to eeprom. 40 Chapter 2 - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 51
Disassembly and Replacement This chapter contains step-by-step procedures on how to disassemble the notebook computer for maintenance and troubleshooting. NOTE: Some components may differ in appearance from those shown in the photographs in this chapter. Disassembly Requirements To disassemble - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 52
of the hardware components. For example, if you want to remove the main board, you must first remove the keyboard, then disassemble the inside assembly frame in that order. Main Screw List Description Quantity Acer P/N M1.98D 3.0L K 4.6D 0.8T ZK 21 86.PAA02.001 M2.46D 3.0L K 5.5D 0.8T ZK 11 - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 53
gives you a graphic representation on the entire disassembly sequence and instructs you on the components that need to be removed during servicing. For example, if you want to remove the main board, you must first remove the keyboard, then disassemble the inside assembly frame in that order. Turn - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 54
Removing the Battery Pack 1. Turn computer over. 2. Slide the battery lock/unlock latch to the unlock position. 3. Slide and hold the battery release latch to the release position (1), then lift out the battery pack from the main unit (2). 2 1 44 Chapter 3 - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 55
Removing the SD Dummy Card 1. Push the SD dummy card all the way in to eject it. 2. Pull it out from the slot. Chapter 3 45 - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 56
Removing the Lower Covers 1. See "Removing the Battery Pack" on page 44. 2. Loosen the five captive screws in the covers as shown. DIMM Cover WLAN Cover 3. Remove the DIMM Cover as shown. HDD Cover 4. Remove the WLAN Cover as shown. 46 Chapter 3 - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 57
5. Remove the HDD Cover as shown. Chapter 3 47 - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 58
cables in place. 3. Disconnect the two Antenna cables from the WLAN Module. NOTE: The white Antenna cable connects to the upper J2 terminal and the black Antenna cable to the lower J3 terminal. 48 Chapter 3 - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 59
4. Remove the two screws securing the WLAN Module to the Lower Cover. Step WLAN Module Size M2*3 Quantity 2 5. Remove the WLAN Module as shown. Screw Type Chapter 3 49 - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 60
Removing the DIMM Modules 1. See "Removing the Lower Covers" on page 46. 2. Push out the release latches on both sides of the DIMM socket to release the DIMM module. 3. Remove the DIMM module. 4. Repeat steps for the second DIMM module. 50 Chapter 3 - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 61
Removing the Hard Disk Drive Module 1. See "Removing the Lower Covers" on page 46. 2. Hold the Pull Tab and slide the HDD away from the connector. 3. Lift the HDD up as shown to remove. NOTE: To prevent damage to HDD, avoid pressing down on it or placing heavy objects on top of it. Chapter 3 51 - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 62
4. Remove the four screws (two each side) securing the HDD to the carrier. Step HDD Carrier Size M3*3 5. Lift the HDD carrier to remove. Quantity 4 Screw Type 52 Chapter 3 - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 63
Removing the Optical Disk Drive Module 1. See "Removing the Lower Covers" on page 46. 2. Remove the single screw securing the ODD module in place. Step ODD Module Size M2.5*5 Quantity 1 Screw Type 3. Insert a suitable plastic tool as shown and push the ODD Module out of the bay. Chapter 3 53 - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 64
4. Remove the two screws securing the ODD bracket and remove the ODD bracket from the optical disk drive module. Step ODD Bracket Size M2*3 Quantity 2 5. Insert a pin in the eject hole of the ODD to eject the ODD tray. Screw Type 6. Press - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 65
Hinge Covers Rem ove Switch Cover Rem ove Keyboard Rem ove Speaker Module Rem ove LCD Module Upper Cover Rem ove Function Board Rem ove Fingerprint Reader Rem ove TouchPad Bracket Rem ove Upper Cover Lower Cover Rem ove RTC Battery Rem ove Bluetooth Module Rem ove Modem Module Rem ove - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 66
Removing the Hinge Covers 1. See "Removing the Battery Pack" on page 44. 2. Remove the two screw caps and screws from the Hinge Covers. Step Hinge Covers Size M2*3 Quantity 2 Screw Type 3. Slide the - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 67
a plastic pry are used to remove the Switch Cover. 1. See "Removing the Battery Pack" on page 44. 2. See "Removing the Hinge Covers" on page 56 Cover. IMPORTANT: The LCD module does not fully extend. Damage will occur if you attempt to extend the LCD module beyond the manufacturer's design. 5. Lift - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 68
6. Lift the left side of the Switch Cover away from the Upper Cover as shown. 7. Using a side-to-side motion to release the securing clips along the length of the Switch Cover, lift the cover away from the computer. 8. Lift the Switch Cover clear of the chassis. 58 Chapter 3 - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 69
1. See "Removing the Switch Cover" on page 57. 2. Lift the keyboard from the center to clear the securing tabs on both sides of the Keyboard. 3. Push the Keyboard toward the LCD screen to expose the Keyboard FFC cable. 4. Unlock the connector and pull the FFC to remove it from the Mainboard - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 70
Removing the Speaker Module 1. See "Removing the Keyboard" on page 59. 2. Remove the two securing screws from the Speaker Module. Step Speaker attached to the Mainboard. 4. Rotate the Speaker Module upward, rear edge first to clear the LCD cables, and remove it from the chassis. 60 Chapter 3 - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 71
5. Disconnect the speaker cable as shown and remove the Speaker from the Upper Cover. Chapter 3 61 - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 72
Removing the LCD Module 1. See "Removing the Speaker Module" on page 60. 2. Remove the adhesive tapes securing the Antenna cables to the Upper Cover. 3. Turn the computer over. Remove the two securing screws as shown. Step LCD Module Size M2.5*5 Quantity 2 4. Lift the securing tape to expose - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 73
5. Push the Antenna cables through the casing as shown. 6. Remove the Antenna cables from the cable channel. Ensure that the cables are free from all cable clips. 7. Rest the computer on the LCD Module and push the Antenna cables through the covers as shown. Chapter 3 63 - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 74
8. Remove the Antenna cables from the cable channel. Ensure that the cables are free from the cable clips all the way to the hinge well. 9. Disconnect the LVDS cable from the Mainboard as shown. 10. Disconnect the Microphone cable from the Mainboard as shown. 64 Chapter 3 - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 75
11. Remove the two securing screws from the left LCD hinge. Step LCD Module Size M2.5*5 Quantity 2 12. Peel back the adhesive strip from the left LCD Hinge as shown. Screw Type Chapter 3 65 - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 76
13. Remove the two securing screws from the right LCD hinge. Step LCD Module Size M2.5*5 Quantity 2 14. Carefully remove the LCD Module from the chassis. Screw Type 66 Chapter 3 - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 77
Removing the Upper Cover 1. See "Removing the LCD Module" on page 62. 2. Turn the computer over. Remove the fifteen screws on the bottom panel. Step Upper Cover (red call out) Upper Cover (green callout) Size M2.5*10 M2.5*5 Quantity 10 5 Screw Type 3. Turn the computer over. Remove the two - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 78
4. Turn the computer over and disconnect the four FFC cables from the mainboard. A B Unlock the connector and disconnect A as shown. C Unlock the connector and disconnect B as shown. Unlock the connector and disconnect C as shown. 68 Chapter 3 - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 79
5. Ease the lower casing outward to clear the securing clips. Pry apart the left side as shown, and lift the rear edge of the Upper Cover upward. 2 1 6. Repeat the process on the right side of the casing and remove the Upper Cover from the Lower Cover. Chapter 3 69 - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 80
Removing the Finger Print Reader 1. See "Removing the Upper Cover" on page 67. 2. Remove the single securing screw on the bracket. Step Finger Print Reader Size M2*3 3. Lift the bracket clear of the casing. Quantity 1 Screw Type 70 Chapter 3 - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 81
4. Hold down the Finger Print Board and lift the FFC, as shown, to disengage the adhesive. 5. Lift the Finger Print Reader clear of the Upper Cover. Chapter 3 71 - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 82
Removing the TouchPad Bracket IMPORTANT: The TouchPad is supplied as part of the Upper Cover. If the TouchPad is defective, replace the entire Upper Cover. 1. See "Removing the Upper Cover" on page 67. 2. Open the FFC - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 83
5. Remove the two screws from the TouchPad Bracket. Step TouchPad Bracket Size M2*3 Quantity 2 6. Remove the TouchPad Bracket from the Upper Cover. Screw Type Chapter 3 73 - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 84
Removing the RTC Battery IMPORTANT: Follow local regulations for disposal of all batteries. The RTC Battery is soldered to the Mainboard. To replace the battery, solder the new battery to the connections shown. 74 Chapter 3 - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 85
Removing the Bluetooth Module 1. See "Removing the Upper Cover" on page 67. 2. Remove the adhesive tape securing the cable to the Lower Cover. 3. Disconnect the cable from the Bluetooth Module. 4. Disconnect the cable from the Mainboard. Chapter 3 75 - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 86
5. Remove the single securing screw and remove the module from the chassis. Step Bluetooth Module Size M2*3 Quantity 1 Screw Type 76 Chapter 3 - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 87
Removing the USB Board 1. See "Removing the Upper Cover" on page 67. 2. Open the FFC securing latch and remove the cable from the Mainboard connector. 3. Remove the single screw securing the USB Board to the Lower Cover. Step USB Board Size M2.5*3 Quantity 1 4. Remove the USB Board from the - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 88
the cable to the Modem. 3. Remove the two screws securing the module to the Mainboard. Step Modem Module Size M2*3 Quantity 2 4. Lift the Modem Module clear of the Mainboard as shown. Screw Type 78 Chapter 3 - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 89
5. Turn the module over and disconnect the Modem cable. Remove the module from the Lower Cover. 6. Remove the Modem cable from the Mainboard cutout as shown. Chapter 3 79 - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 90
Removing the Mainboard 1. See "Removing the Upper Cover" on page 67. 2. See "Removing the Modem Module" on page 78. 3. Remove the single securing screw. Step Mainboard Size M2.5*3 Quantity 1 4. Lift the mainboard right side first to remove it from the Lower Cover. Screw Type 80 Chapter 3 - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 91
Removing the RJ-11 Port 1. See "Removing the Mainboard" on page 80. 2. Turn the Lower Cover over and pull the Modem cable through the casing as shown. 3. Completely remove the Modem cable from the cable channel. 4. Turn the computer over. Pull the Modem cable completely through the casing as shown. - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 92
5. Remove the adhesive tape and lift the cable out of the cable channel as shown. 6. Detach the adhesive and lift the cable bundle out of the casing. 7. Remove the RJ-11 Port from the casing. 82 Chapter 3 - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 93
Removing the Thermal Module 1. See "Removing the Mainboard" on page 80. 2. Turn the Mainboard over and place on a clean surface. 3. Hold the fan cable connector and lift to disconnect from the mainboard. 4. Remove the four screws from the Thermal Module numerically, from 4 to 1. 4 2 1 3 Step - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 94
WARNING:To prevent damage to the Thermal Module or the CPU, hold and lift the Thermal Module by lifting both ends up and away at the same time. 5. Hold the module on both sides and lift it clear of the Mainboard. 84 Chapter 3 - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 95
Removing the CPU 1. See "Removing the Thermal Module" on page 83. 2. Using a flat screwdriver, turn the CPU socket latch counter-clockwise 180° to release the CPU. 3. Lift the CPU clear of the Mainboard. Chapter 3 85 - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 96
Rem ove Antenna Screw List Step LCD Bezel Camera Module LCD Panel LCD Brackets Screw M2.5*5 M2.5*3 M2.5*5 M2.5*3 M2*3 Rem ove MIC Module Quantity 6 1 2 1 6 Part No. 86.PAA02.003 86.PAA02.002 86.PAA02.003 86.PAA02.002 86.PAA02.001 86 Chapter 3 - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 97
. Step LCD Bezel Size M2.5*5 Quantity 6 Screw Type 3. Starting at the centre of the top edge, pry the inside of the bezel away from the screen. Work round the edges to pry the bezel away from the - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 98
4. Lift the bezel away from the panel. 88 Chapter 3 - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 99
screw from the Camera Bracket as shown. Step Camera Module Size M2.5*3 Quantity 1 3. Lift the Camera Bracket, right side first, clear of the casing. Screw Type 4. Lift the Camera Module clear of the casing and disconnect the cable from the Module. 5. Remove the Camera Module. Chapter 3 89 - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 100
Removing the LCD Panel 1. See "Removing the Camera Module" on page 89. 2. Remove the two securing screws from the LCD hinges and the single LCD grounding screw. Step LCD Panel (red callout) LCD Panel (green callout) Size M2.5*5 M2.5*3 Quantity 2 1 Screw Type 3. Remove the Camera cable bundle - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 101
4. Lift the LCD Panel out of the casing as shown. Chapter 3 91 - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 102
Removing the LCD Brackets and FPC Cable 1. See "Removing the LCD Panel" on page 90. 2. Turn the LCD Panel over on a clean surface, and lift the cable as shown to detach the adhesive. 3. Grip the adhesive strip covering the LCD cable connector and pull it back (1). 4. Remove the cable from the panel - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 103
place. Ensure the cables are free from obstructions. 3. Remove the tab securing the left and right antennas to the LCD module and lift the antennas clear. 4. Remove the antenna cables and assembly from the LCD module. Chapter 3 93 - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 104
Removing the MIC Module 1. See "Removing the Antennas" on page 93. 2. Remove the strips and tape holding the MIC Module cable in place. Ensure the cable is free from obstructions. 3. Remove the MIC cable and Module from the LCD module. 94 Chapter 3 - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 105
LCD Module Reassembly Procedure Replacing the MIC Module 1. Replace the MIC Module in the LCD casing. 2. Run the cable as shown and replace the adhesive strips to hold it in place. IMPORTANT: Ensure that the cable runs as shown in the hinge well area to avoid trapping. Replacing the Antennas 1. - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 106
3. Run the cable along the edge of the casing using 4. Run the cable as shown and replace the adhesive all available cable clips. strip. 5. Replace the Antenna in the casing as shown and 6. Ensure that the securing pin is properly located. secure it in place with the tape. 7. Run the left side - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 107
9. Run the cable as shown and replace the adhesive 10. Run the cable as shown and replace the adhesive strip. strip. 11. Run the cable along the edge of the casing using 12. Replace the Antenna in the casing as shown and all available cable clips. secure it in place with the tape. 13. Ensure - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 108
Replacing the LCD Panel 1. Align the LCD brackets with the six screw holes (three on each side) on the LCD Panel as shown. 2. Replace the six securing screws in numeric order, from 1 to 3. 3 2 1 1 2 3 3. Turn the panel over. Insert the LCD Panel cable 4. Run the LCD cable as shown and press down - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 109
7. Replace the Camera Module cable bundle in the casing as shown. 8. Replace the three screws to secure the panel and grounding within the LCD module. IMPORTANT: When replacing the screws in the LCD brackets (red callout) do not use the screw holes marked with 'X'. These slots are reserved for the - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 110
Replacing the Camera Module 1. Reconnect the LCD cable to the Camera Module. 2. Place the Camera Module in the casing as shown. 3. Ensure that the locating pins are correctly seated. 4. Insert the Camera Bracket left side first to engage the securing clip. 5. Lower the bracket into place as shown - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 111
Replacing the LCD Bezel 1. Place the Bezel on the casing bottom edge first 2. Press down the sides of the bezel, working toward and press in the areas marked to snap it into place. the top edge. 3. Press down the top edge to complete the process. IMPORTANT: Ensure there are no gaps between the - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 112
the CPU socket. 1. Place the CPU into the CPU socket as shown, taking note of the Pin1 locator. CPU Pin1 Locator 2. Using a flat-bladed screw driver, rotate the CPU locking screw 180° clockwise to secure the CPU in place. 102 Chapter 3 - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 113
Replacing the Thermal Module WARNING:To prevent damage to the Thermal Module or the CPU, hold the Thermal Module by both ends at the same time. IMPORTANT: Ensure all heat pads / thermal compound are in place before replacing the Thermal Module. The following thermal pads are approved for use: • - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 114
3. Connect fan cable to the mainboard as shown. Step Thermal Module Size M 2.5*3.2 Quantity 4 Screw Type 104 Chapter 3 - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 115
Replacing the RJ-11 Port 1. Replace the RJ-11 Port in the casing as shown. 2. Place the cable bundle in the casing and apply pressure to secure the adhesive in place. 3. Run the cable along the cable channel using all available cable clips. 4. Replace the adhesive tape and insert the cable - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 116
7. Insert the cable through the casing to the top side as shown. Replacing the Mainboard 1. Ensure that the Mainboard is face up. Place the Mainboard in the chassis, left hand edge first to allow the I/O Ports through the casing, then lower it into place. Be sure to align the securing pins and slide - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 117
2. Insert the single securing screw. Step Mainboard Size M2.5*3 Quantity 1 Screw Type NOTE: Make sure the I/O ports are positioned correctly through the lower cover, and the screw sockets are visible through the mainboard. Chapter 3 107 - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 118
IMPORTANT: Follow local regulations for disposal of all batteries. The RTC Battery is soldered to the Mainboard. To replace the battery, solder the new battery to the connections shown. Replacing the USB Board 1. Insert the USB Board into the casing, ensuring that the USB Port is accessible through - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 119
the locating pins is correctly seated and replace the single securing screw. Step USB Board Size M2.5*3 Quantity 1 Screw Type Replacing the Bluetooth Board 1. Insert the Bluetooth Module left side first so the board slides under the securing flange and lower it into place. Chapter 3 109 - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 120
2. Replace the single securing screw. Step Bluetooth Module Size M2*3 Quantity 1 Screw Type 3. Reconnect the Bluetooth cable to the Mainboard and insert the cable into the cable channel on the Front Cover. 4. Reconnect the Bluetooth cable to the Bluetooth Module and secure the cable in place - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 121
Replacing the Modem Module 1. Connect the modem cable as shown. 2. Flip the modem board over and Replace the Modem Module on the Mainboard. 3. Align the screw sockets and replace the two screws. Step Modem Module Size M2*3 Quantity 2 Screw Type Chapter 3 111 - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 122
4. Secure the Modem cable in place with the adhesive tape. Replacing the TouchPad Bracket 1. Place the TouchPad in the casing. 2. Replace the two securing screws. 112 Chapter 3 - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 123
3. Replace the adhesive strip for the TouchPad Bracket. 4. Replace the FFC and close the locking latch. 5. Run the cable along the Bracket and press down to secure it in place. Chapter 3 113 - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 124
Replacing the Finger Print Reader 1. Replace the Finger Print Reader in the Upper Cover in the direction of the arrow. 2. Run the FFC along the TouchPad bracket, as shown, and press down to secure it in place. 3. Replace the FInger Print Reader Bracket rear edge first and lower it into place. 114 - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 125
4. Replace the single securing screw. Chapter 3 115 - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 126
Replacing the Upper Cover WARNING:Care must be taken when replacing the Upper Cover to prevent damage or stress to the surface. 1. Place the Upper Cover on the Lower Cover, top right side first, and lower it into place. 2. Starting with the sides, press down all around the perimeter of the cover to - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 127
3. Reconnect the three FFC cables to the mainboard. A B 4. Connect A as shown and lock the connector. C 5. Connect B as shown and lock the connector. 6. Connect C as shown and lock the connector. Chapter 3 117 - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 128
7. Replace the two securing screws in the Upper Cover. Step Upper Cover (red callout) Upper Cover (green callout) Size M2.5*5 M2.5*3 Quantity 1 1 Screw Type 8. Turn the computer over. Replace the fifteen screws on the bottom panel. Step Upper Cover (red call out) Upper Cover (green callout) - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 129
Replacing the LCD Module 1. Carefully align the LCD module over the hinge sockets and lower the module into the chassis, taking care not to trap the LCD cables. 2. Replace the two securing screws on the right hinge as shown. Step LCD Module Size M2.5*5 Quantity 2 Screw Type Chapter 3 119 - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 130
3. Replace the adhesive strip on the left hinge. 4. Replace the two securing screws on the left hinge as shown. Step LCD Module Size M2.5*5 Quantity 2 5. Reconnect the Microphone cable to the Mainboard as shown. Screw Type 120 Chapter 3 - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 131
6. Reconnect the LVDS cable to the Mainboard as shown. 7. Insert the Antenna cables through the casing, as shown, and pull through from the underside. NOTE: Ensure the cable is pulled completely through the casing. 8. Run the Antenna cables along the cable channel as shown, using all available - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 132
9. Replace the adhesive strip to secure the cables in place. 10. Pull the Antenna through the casing into the WLAN bay as shown. 11. Turn the computer over. Replace the two securing screws. Step LCD Module Size M2.5*5 Quantity 2 Screw Type 122 Chapter 3 - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 133
12. Replace the two pieces of adhesive tape securing the Antenna cables to the Upper Cover. Replacing the Speaker Module 1. Align and replace the Speaker Module in the lower case. IMPORTANT: Be sure the LVDS and microphone cables pass over the Speaker Module. 2. Reconnect the Speaker cable. 3. - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 134
4. Replace the two securing screws as shown. Step Speaker Module Size M2.5*3 Quantity 2 Screw Type Replacing the Keyboard 1. Place the Keyboard on the Upper Cover, face up and reconnect the FFC cable to the Mainboard, making sure to lock it in place. 124 Chapter 3 - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 135
2. Insert the Keyboard, bottom edge first, into the Upper Cover as shown. Ensure that the five tabs are correctly seated. 3. Press down both sides of the keyboard to secure it in place. Chapter 3 125 - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 136
Replacing the Switch Cover 1. Place the Switch Cover on the Upper Case as shown. 2. Press down both sides of the Switch Cover to snap it into place. 126 Chapter 3 - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 137
3. Continue to press down as shown to correctly seat the Switch Cover on the Upper Cover. 4. Turn the computer over and replace the six securing screws as shown. Step Switch Cover (red callout) Switch Cover (green callout) Size M2.5*3 M2.5*10 Quantity 4 2 Screw Type Chapter 3 127 - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 138
Replacing the Hinge Covers IMPORTANT: The left and right Hinge Covers are shaped differently and marked L and R on the inside. Ensure that the correct cover is used during reassembly. 1. Align the Hinge Covers screw hole side up and slide them on to the hinge assemblies. 2. Replace the two securing - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 139
External Module Reassembly Process Replacing the ODD Module 1. Align the ODD Bezel as shown and press it into place. Close the ODD drawer. 2. Align the ODD Bracket as shown and replace the securing screws. 3. Push the ODD Module into the chassis as shown until the bezel is flush with the casing. - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 140
4. Replace the securing screw. Step ODD Module Size M2.5*5 Quantity 1 Replacing the Hard Disk Drive Module 1. Place the HDD carrier on the HDD. Screw Type 130 Chapter 3 - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 141
2. Replace the four securing screws (two each side). Step HDD Carrier Size M3*3 Quantity 4 Screw Type 3. Place the HDD Module in the HDD bay as shown and slide it in the direction of the arrow to connect the interface. Chapter 3 131 - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 142
Replacing the DIMM Modules 1. Insert the DIMM Module flush with the connector and press down to lock in place. Replacing the WLAN Module 1. Insert the WLAN board into the WLAN socket. 132 Chapter 3 - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 143
Size M2*3 Quantity 2 Screw Type 3. Connect the two antenna cables to the module. NOTE: The White cable goes to the upper terminal and the black cable to the lower terminal. IMPORTANT: Ensure that the cabling is replaced as shown to avoid trapping when the covers are replaced. Chapter 3 133 - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 144
Replacing the Lower Covers 1. Replace the Lower Covers and secure the captive screws. DIMM Cover WLAN Cover Replacing the SD Dummy Card 2. Insert the SD Card and push into the slot until flush with the chassis cover. HDD Cover 134 Chapter 3 - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 145
Replacing the Battery 1. Slide and hold the battery release latch to the release position (1), then insert the battery and press down (2). 2 1 2. Slide the battery lock/unlock latch to the lock position. Chapter 3 135 - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 146
136 Chapter 3 - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 147
Troubleshooting Chapter 4 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 Issue Page 138 No Display Issue Page 139 LCD Failure Page 141 Internal Keyboard Failure Page 141 Touchpad - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 148
, perform the following actions one at a time to correct the problem. 1. Check the power cable is properly connected to the computer non-essential hardware connected to the computer that are not necessary to boot the computer to the failure point. 6. Remove any recently installed software. 7. - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 149
or Video If the POST or video doesn't display, perform the following actions one at a time to correct the problem. 1. Make sure that the internal display is selected. On this notebook model, switching between the internal display and the external display is done by pressing Fn+F5. Reference Product - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 150
the screen), the LCD is faulty and should be replaced. See "Disassembly Process" on page 42. 4. Adjust the brightness to its highest level. See the User Manual for instructions on adjusting settings. NOTE: Ensure that the computer is not running on battery alone as this may reduce display brightness - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 151
If the LCD fails, perform the following actions one at a time to correct the problem. Do not replace a nondefective FRUs: Built-In Keyboard Failure If the built-in Keyboard fails, perform the following actions one at a time to correct the problem. Do not replace a non-defective FRUs: Chapter 4 141 - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 152
doesn't work, perform the following actions one at a time to correct the problem. Do not replace a non-defective FRUs: Internal Speaker Failure If the internal Speakers fail, perform the following actions one at a time to correct the problem. Do not replace a non-defective FRUs: 142 Chapter 4 - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 153
to correct the problem. 1. Reboot the audio driver to the previous version, if updated recently. 4. Remove and reinstall the audio driver. tab and select Show Disabled Devices (clear by default). 7. Select Speakers System Restore. If the issue is not fixed, repeat the preceding steps and select an - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 154
time to correct the problem. Do not replace a non-defective FRUs: Microphone Problems If internal or external Right-click on the Recording tab and select Show Disabled Devices (clear by default). 3. The microphone appears on the Recording tab. Support Information" on page 211. 144 Chapter 4 - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 155
the operating system DVD. c. The Install Windows screen displays. Click Next. d. Select Repair your computer. e. The System Recovery Options screen displays. Click Next. f. Select the appropriate operating system, and click Next. NOTE: Click Load Drivers if controller drives are required. g. Select - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 156
loaded • DVDs do not play when loaded • Blank discs do not burn correctly • DVD or CD BIOS setup • LED does not flash when the computer starts up • The tray does not eject • Access failure screen displays • The ODD is noisy Perform the following general solutions one at a time to correct the problem - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 157
drives. If the device displays a down arrow, right the device and uninstall and reinstall the driver. d. Check that there are no be changed even Windows is reinstalled or manual. Playback is Choppy If playback is choppy or jumps, perform the following actions one at a time to correct the problem - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 158
Windows cannot detect the drive, perform the following actions one at a time to correct the problem. 1. Restart the computer and press F2 to enter the BIOS broken connectors on the drive, motherboard, and cables. b. Check for bent or broken pins on the drive, motherboard, and cable connections. c. - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 159
USB port fails, perform the following actions one at a time to correct the problem. Do not replace a non-defective FRUs: 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: Chapter 4 149 - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 160
Swap WLAN/ WiMAX Card OK Check Function Board NG Swap Function Board Swap Mainboard Bluetooth Function Failure If the Bluetooth fails, perform the following actions one at a time to correct the problem. Do not replace a nondefective FRUs: Start Check BT cable connected OK NG OK Reconnect - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 161
EasyTouch Button Failure If the Acer EasyTouch buttons fail, perform the following actions one at a time to correct the problem. Do not replace a non-defective FRUs: Start OK Check Function/B to MB connection Reconnect the NG Function/B to MB FFC cable OK Check Function/B and - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 162
. 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 Check Fan power cable NG OK Reconnect the cable to the Mainboard Check Fan NG Swap the - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 163
. If the issue is not fixed, repeat the preceding steps and select an earlier time and date. 9. Run the Event Viewer to check the events log for errors. For more information see Windows Help and Support. 10. Roll back the mouse driver to the previous version if updated recently. 11. Remove and - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 164
FRU). NOTE: Verify that all attached devices are supported by the computer. NOTE: Verify that the power supply problems are found, replace the FRU. 3. Remove or disconnect all of the following devices: • Non-Acer devices • Printer, mouse, and other external devices • Battery pack • Hard disk - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 165
CR0.CD = 1, CR0.NW = 0 Cache Init Finished Memory: DEBUG_BIOS equ 1 (Chipset\Alviso\MemoryInitAsm\IA32\IMEMORY.INC) Code 0xA0 0x01 0x02 0x03 0x04 0x05 0x06 0x07 0x08 DIMMs Verify burst length of 8 is supported by all DIMMs Determine the smallest tWR supported by all DIMMs Determine DIMM size - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 166
0xE4 0xF8 0xF9 Description Report the legacy boot is happening Wake up the Aps root bridge handle Notify pci bus driver starts to program the resource Reset Keyboard reset USB Keyboard disable Keyboard detection Report that the usb keyboard is being enabled Clear the keyboard buffer Init Keyboard - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 167
PEI_PLATFORM_STAGE2 PEI_SB_SMBUS_ARP_DISABLED PEI_HOST_TO_SYSTEM PEI_MEMORY_INIT PEI_S3_RESUME PEI_CLOCK_GEN PEI_OP_PRESENCE PEI_FIND_FV PEI_H2O_DEBUG_IO PEI_H2O_DEBUG_COMM PEI_RESERVED PEI_OEM_DEFINED PEI_DXE_IPL Each Driver entry point used in 80_PORT Code 0x30 0xB6 0xB8 0xB9 0xBA 0xBB 0xBC 0xBE - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 168
Code 0xC4 0xC5 0xC6 0xC7 0xC8 0xC9 0xD9 0x45 0xD6 0xD7 0xD5 0xDA 0xDB 0xDD 0xE7 0xE8 0xE9 0xED 0xEC 0xF6 0xF7 0xF8 0xFB 0xFC 0xFD 0x97 0x98 0x99 0x82 0x83 0x84 0x85 0x88 0x89 0x60 0x8B 0x62 0x8D 0x8E 0x8F 0x70 0x71 Description SECURITY_STUB DXE_CPU_IO CF9_RESET PC_RTC STATUS_CODE VARIABLE - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 169
Code 0x72 0x73 0x75 0x76 0x6C 0x6D 0x6E 0x6F 0x74 0xFA 0x90 0x78 0x86 0x87 0x8A 0x7C 0x7D 0x7E 0x7F 0x9E 0x9F 0x8C 0xF9 0x72 0xBD 0x8D 0x8E 0x8F 0xA0 0xB3 0xB4 0xB7 0x9B 0xA9 0x9C 0x9D 0xCB 0xB5 0x11 0xB0 0xB1 Description MONITER_KEY LEGACY_BIOS LEGACY_BIOS_PLATFORM PCI_PLATFORM ISA_FLOOPY - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 170
Each SmmDriver entry point used in 80_PORT Code 0xD4 0xDE 0xCC 0xD2 0xDF 0xD0 0xCA 0xFE 0xD8 0x90 0x91 0x92 0x93 0x94 0x95 0xD3 Description SMM_ACCESS SMM_CONTROL SMM_BASE SMM_RUNTIME SB_SMM_DISPATCH SMM_THUNK SMM_ACPI_SW_CHILD SMM_PLATFORM SMM_GMCH_MBI SMM_FW_BLOCK_SERVICE SMM_VARIABLE SMM_IHISI - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 171
Locations Top View VGA UMA Chapter 5 Discrete Item SW1 JP11 JLVDS1 JP12 JP4 Description ON/OFF Button Camera Connector LCD Connector Speaker Connector Bluetooth Connector Item U7 U5 SW4 SW 2 SW 3 Description VRAM VRAM Touch Pad Lock Button Touch Pad (left) Button Touch Pad (right) Button - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 172
JP7 Touch Pad Connector JP3 FP/B Connector JP9 Fun/B Connector Bottom View VGA UMA Item JMDCI JP8 JP2 Description USB Connector Keyboard Connector USB/B Connector Discrete VGA Item PJP3 JCRT1 JUSB2 Description AC-IN Connector CRT Connector USB Connector 162 Item JRJ45 PJ13 JHDMI1 - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 173
ODD Connector Wireless Card Connector CPU Socket LS-4495P USB Board Clearing Password Check and BIOS Recovery This section provide you the standard operating procedures of clearing password and BIOS recovery for Aspire 4540/4240. Aspire 4540/4240 provides one Hardware Open Gap on main board for - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 174
Password Check Hardware Open Gap Description Description Location Clear CMOS Jumper Memory bay Steps for Clearing BIOS Password Check If users set BIOS Password (Supervisor Password and/or User Password) for a security reason, BIOS will ask the password during systems POST or when systems - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 175
will force the BIOS to enter a special BIOS block, called Boot Block. Steps for BIOS Recovery by Crisis Disk: Before doing this, one Crisis Disk should be prepared ready in hand. The Crisis Disk could be made by executing the Crisis Disk program in another system with Windows XP OS. Follow the - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 176
166 Chapter 5 - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 177
the printed Service Guide. For ACER AUTHORIZED SERVICE PROVIDERS, your Acer office may have a DIFFERENT part number code from those given in the FRU list of this printed Service Guide. You MUST use the local FRU list provided by your regional Acer office to order FRU parts for repair and service of - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 178
Aspire 4540/4240 Exploded Diagrams Main Module 1 2 3 4 9 5 6 10 7 8 11 Item 1 2 3 4 5 6 Description Middle Cover Speaker Hinge Cover_L Upper Cover Finger Print Reader F/P Reader Bracket 168 Part No. 60.PAA02.004 23.PAA02.002 42.PAA02.004 60.PBP02.001 55.PAA02.002 33.PAA02.005 Item 7 8 9 10 11 - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 179
Base 1 3 2 4 Item 1 2 Description HDD Door MiniPCI Door Part No. 42.PAA02.003 42.PAA02.001 Item 3 4 Description Memory Cover Lower Cover Part No. 42.PAA02.002 60.PBP02.005 Chapter 6 169 - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 180
Aspire 4540/4240 FRU List Category Battery Board Description Acer PN BATTERY SANYO AS-2007A LI-ION 3S2P SANYO 6 CELL 4400MAH MAIN COMMON NORMAL TYPE BATTERY SONY AS-2007A LI-ION 3S2P SONY 6 CELL 4400MAH MAIN COMMON NORMAL TYPE BATTERY PANASONIC AS-2007A LI-ION 3S2P PANASONIC 6 CELL 4400MAH MAIN - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 181
Category TP FFC Description RJ11 CABLE Acer PN 50.PAA02.002 50.PAA02.003 POWER CORD US 3 PIN POWER CORD EU 3 PIN POWER CORD AUS 3 PIN POWER CORD UK 3 PIN POWER CORD - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 182
Category HINGE CAP L Description HINGE CAP R HDD BRACKET Acer PN 42.PAA02.004 42.PAA02.005 33.PBP02.001 HDD 172 MINI CARD BRACKET MIDDLE COVER TP BRACKET FP BRACKET 33.PAA02.003 60. - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 183
INTERNAL 14 STANDARD 86KS BLACK ARABIC TEXTURE KEYBOARD ACER AC4T JV40 INTERNAL 14 STANDARD 86KS BLACK CHINESE TEXTURE KEYBOARD ACER AC4T JV40 INTERNAL 14 STANDARD 86KS BLACK RUSSIAN TEXTURE KEYBOARD ACER AC4T JV40 INTERNAL 14 STANDARD 86KS BLACK THAILAND TEXTURE KEYBOARD ACER AC4T JV40 INTERNAL 14 - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 184
BLACK JAPANESE TEXTURE Acer PN KB.I140A.040 KB.I140A.060 KB.I140A.036 KB.I140A.037 KB.I140A.046 CPU AMD AthlonII M300 2.0G 1M 35W Caspian CPU AMD AthlonII M320 2.1G 1M 35W Caspian CPU AMD TurionII M500 2.2G 1M 35W CPU AMD TurionII M520 2.3G 1M 35W CPU AMD Turion SATA (Windows 7) 6M.PJE02.002 KO - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 185
ASSY LCD MODULE 14" WXGA GLARE W/ ANTENNA *2, CAMERA, IMR Acer PN 6M.PBP02.003 LED LCD AUO 14" WXGA GLARE B140XW01 LF 220NIT 8MS 500:1 LED LCD LPL 14" WXGA GLARE LP140WH1-TLA1 LF 220NIT 8MS 500:1 LED LCD CMO 14" WXGA GLARE N140B6-L02 LF 220NIT 8MS 400:1 LCD COVER IMR ANTENNA MAIN (R -1X2) LK. - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 186
LF 220NIT 8MS 500:1 LED LCD LPL 14" WXGA GLARE LP140WH1-TLA1 LF 220NIT 8MS 500:1 LED LCD CMO 14" WXGA GLARE N140B6-L02 LF 220NIT 8MS 400:1 LCD COVER IMR ANTENNA AUX (L) Acer PN LK.14005.006 LK.14005.008 LK.14006.009 LK.14008.001 LK.1400D.004 60.PAA02 - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 187
Category Description LCD COVER IMR ANTENNA MAIN (R -1X2) ANTENNA AUX (L) LCD BEZEL W/O CMOS Acer PN 60.PAA02.005 50.PAA02.004 50.PAA02.005 60.PAA02.007 LVDS CABLE W/O CMOS 50.PBC02.001 LCD BRACKET R&L 33.PAA02.007 ASSY LCD MODULE 14" WXGA GLARE W/ ANTENNA *3, IMR, W/O CCD 6M.PBP02.006 LED - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 188
Category Mainboard Thermal Module Description CAMERA BRACKET LVDS CABLE W/O CMOS LCD BRACKET R&L Acer PN 33.PAA02.006 50.PBC02.001 33.PAA02.007 MAINBOARD .001 40.PBP02.002 47.PAA02.001 47.PAA02.002 47.PAA02.003 47.PAA02.004 Acer PN 86.PAA02.001 86.PAA02.002 86.PAA02.003 86.PAA02.004 86.PAA02.005 86 - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 189
Chapter 6 179 - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 190
Model Definition and Configuration Appendix A Aspire 4540/4240 Series Model RO Country AS4240- WW WW 122G25Mn Acer Part No S2.PJE02.001 AS4240121G32Mn AAP Thailand LX.PJE0C.001 AS4240101G32Mn AAP Thailand LX.PJE0C.002 AS4240121G25Mn AAP Thailand LX.PJE0C.003 AS4240101G25Mn AAP - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 191
AAP Thailand AS4540602G50Mn AAP Thailand AS4540642G32Mn AAP Thailand AS4540622G32Mn AAP Thailand AS4540602G32Mn AAP Thailand AS4540301G25Mn AAP Thailand AS4540342G25Mn AAP Thailand Acer Part No LX.PFP02.010 LX.PFP02.009 LX.PFP02.008 LX.PFP02.007 LX.PFP02.006 LX.PFP02.005 LX - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 192
Model AS4540322G25Mn RO AAP Country Thailand Acer Part No LX.PFP0C.014 AS4540642G50Mn AAP Thailand LX. AS4540-542G25Mn LINPUSATH1 UMACFbk 1*2G/250/BT/6L2.2/5R/ CB_bgn_FP_0.3D_HG_TH51 AS4540-522G25Mn LINPUSATH1 UMACFbk 1*2G/250/BT/6L2.2/5R/ CB_bgn_FP_0.3D_HG_TH51 AS4540-521G16Mn LINPUSAPH1 - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 193
AAP 522G32Mn AS4540- PA 302G25Mn AS4540- PA 302G25Mn Country ACLAPortuguese Acer Part No LX.PFN0C.027 ACLA- LX.PFN0C.026 Portuguese ACLA- 504G50Bn LINPUSAXC3 UMACbk 2*2G/500_L/6L2.2/5R/ CB_bgn_0.3D_HG_EN61 AS4540-521G32Mn LINPUSAMY1 UMACbk 1*1G/320/BT/6L2.2/5R/ CB_bgn_0.3D_HG_EN11 AS4540 - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 194
AS4540- PA 303G25Mn AS4540- PA 303G25Mn AS4540- PA 303G25Mn AS4540- PA 302G25Mn AS4540- PA 302G25Mn AS4540- PA 302G25Mn Country ACLASpanish Acer Part No LX.PFN0C.019 ACLASpanish LX.PFN0C.018 ACLASpanish LX.PFN0C.017 ACLA- LX.PFN0C.016 Portuguese ACLA- LX.PFN0C.015 - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 195
AS4540- PA 503G32Mn AS4540- CHI 322G32Mn NA AS4540- AAP 502G32Mn AS4540- AAP 302G32Mn AS4540- AAP 502G25Mn AS4540- PA 503G32Mn Country ACLASpanish Acer Part No LX.PFN02.031 ACLA- LX.PFN02.030 Portuguese ACLA- LX.PFN01.001 Portuguese Indonesia LX.PFN0C.009 USA LX.PFN0C.014 - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 196
Model RO Country AS4540- PA 503G32Mn ACLASpanish Acer Part No LX.PFN02.024 AS4540- PA 503G32Mn ACLA- LX.PFN02.023 Portuguese AS4540- PA 503G32Mn ACLASpanish LX.PFN02.026 AS4540502G32Mn AAP Singapore AS4540502G32Mn AAP India - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 197
521G25Mn AS4540- AAP 621G16Mn Country Vietnam Indonesia Philippines Malaysia Indonesia Philippines Vietnam Philippines Philippines Philippines Philippines Philippines Philippines Indonesia Philippines Acer Part No LX.PFN02.017 LX.PFN02.016 LX.PFN02.015 LX.PFN02.019 LX.PFN02.021 LX.PFN02.020 LX - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 198
Model AS4540522G25Mn RO AAP AS4540- WW 323G25Mn Country Philippines WW Acer Part No LX.PFN0C.002 S2.PFN0C.001 Description AS4540-522G25Mn LINPUSAPH1 UMACbk 1*2G/250/6L2.2/5R/ CB_bgn_0.3D_HG_EN11 AS4540-323G25Mn LINPUSAWW1 UMACbk 2G+1G/250/BT/6L2.2/5R/ CB_bgn_0.3D_HG_EN11 Model AS4240- - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 199
AS4540-523G25Mn AS4540-503G25Mn AS4540-501G16Mn AS4540-502G25Mn AS4540-542G25Mn AS4540-522G25Mn AS4540-521G16Mn AS4540-521G25Mn AS4540-503G32Mn AS4540-503G32Mn AS4540-504G50Bn AS4540-504G50Bn AS4540-521G32Mn AS4540-303G25Mn AS4540-302G25Mn AS4540-503G32Mn AS4540-503G32Mn AS4540-503G32Mn AS4540 - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 200
Model AS4540-302G25Mn AS4540-302G25Mn AS4540-302G25Mn AS4540-302G25Mn AS4540-303G25Mn AS4540-501G25Mn AS4540-504G50Mn AS4540-503G32Mn AS4540-504G32Mn AS4540-501G25Mn AS4540-503G32Mn AS4540-322G32Mn AS4540-502G32Mn AS4540-302G32Mn AS4540-502G25Mn AS4540-503G32Mn AS4540-503G32Mn AS4540-503G32Mn AS4540 - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 201
Model AS4540-541G16Mn AS4540-601G16Mn AS4540-521G25Mn AS4540-621G16Mn AS4540-522G25Mn AS4540-323G25Mn CPU ATM540 ATUM600 ATM520 ATUM620 ATM520 AAM320 LCD NLED14WXGAG NLED14WXGAG NLED14WXGAG NLED14WXGAG NLED14WXGAG NLED14WXGAG VGA Chip UMA UMA UMA UMA UMA UMA VRA M 1 N N N N N N - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 202
AS4540-523G25Mn AS4540-503G25Mn AS4540-501G16Mn AS4540-502G25Mn AS4540-542G25Mn AS4540-522G25Mn AS4540-521G16Mn AS4540-521G25Mn AS4540-503G32Mn AS4540-503G32Mn AS4540-504G50Bn AS4540-504G50Bn AS4540-521G32Mn AS4540-303G25Mn AS4540-302G25Mn AS4540-503G32Mn AS4540-503G32Mn AS4540-503G32Mn AS4540 - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 203
Model AS4540-302G25Mn AS4540-302G25Mn AS4540-302G25Mn AS4540-302G25Mn AS4540-303G25Mn AS4540-501G25Mn AS4540-504G50Mn AS4540-503G32Mn AS4540-504G32Mn AS4540-501G25Mn AS4540-503G32Mn AS4540-322G32Mn AS4540-502G32Mn AS4540-302G32Mn AS4540-502G25Mn AS4540-503G32Mn AS4540-503G32Mn AS4540-503G32Mn AS4540 - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 204
Model AS4540-601G16Mn AS4540-521G25Mn AS4540-621G16Mn AS4540-522G25Mn AS4540-323G25Mn HDD 1(GB) N160GB5.4KS N250GB5 1x2 BGN 3rd WiFi 1x2 BGN 3rd WiFi 1x2 BGN 3rd WiFi 1x2 BGN 3rd WiFi 1x2 BGN 3rd WiFi 1x2 BGN Bluetooth BT 2.1 BT 2.1 BT 2.1 BT 2.1 BT 2.1 BT 2.1 BT 2.1 BT 2.1 BT 2.1 BT 2.1 BT 2.1 - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 205
522G25Mn AS4540-521G16Mn AS4540-521G25Mn AS4540-503G32Mn AS4540-503G32Mn AS4540-504G50Bn AS4540-504G50Bn AS4540-521G32Mn 3rd WiFi 1x2 BGN 3rd WiFi 1x2 BGN 3rd WiFi 1x2 BGN 3rd WiFi 1x2 BGN 3rd WiFi 1x2 BGN Bluetooth BT 2.1 BT 2.1 BT 2.1 BT 2.1 BT 2.1 BT 2.1 BT 2.1 BT 2.1 BT 2.1 BT 2.1 N N N - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 206
3rd WiFi 1x2 BGN 3rd WiFi 1x2 BGN 3rd WiFi 1x2 BGN 3rd WiFi 1x2 BGN 3rd WiFi 1x2 BGN 3rd WiFi 1x2 BGN Bluetooth N N N BT 2.1 N N N BT 2.1 N N BT 2.1 BT 2.1 BT 2.1 N N N N BT 2.1 BT 2.1 BT 2.1 BT 2.1 BT 2.1 BT 2.1 BT 2.1 BT 2.1 BT 2.1 BT 2.1 BT 2.1 BT 2.1 BT 2.1 BT 2.1 BT 2.1 BT 2.1 BT 2.1 BT 2.1 BT - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 207
Model AS4540-621G16Mn AS4540-522G25Mn AS4540-323G25Mn Card Reader 5 in 1-Build in 5 in 1-Build in 5 in 1-Build in Wireless LAN1 3rd WiFi 1x2 BGN 3rd WiFi 1x2 BGN 3rd WiFi 1x2 BGN Bluetooth N N BT 2.1 VOIP Phone N N N 197 Appendix A - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 208
Appendix A 198 - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 209
under the Windows® 7 environment. Refer to the following lists for components, adapter cards, and peripherals which have passed these tests. Regarding configuration, combination and test procedures, please refer to the Aspire 4540/4240 series Compatibility Test Report released by the Acer Mobile - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 210
Microsoft® Windows® 7 Environment Test BOM_Name Adapter AS4540_UMACFbk AS4240_UMACbk Audio Codec AS4240_UMACbk AS4540_UMACFbk AS4540_UMACbk Battery AS4240_UMACbk BRAND Quanta Wistron Quanta Wistron Realtek Realtek Realtek SANYO Type Normal wi IMR Normal wi IMR ALC888S ALC888S ALC888S 6CELL2.2 - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 211
SempronM M120 2.1G 512K 25W CPU AMD AthlonII M300 2.0G 1M 35W Caspian CPU AMD AthlonII M320 2.1G 1M 35W Caspian CPU AMD AthlonII M340 2.2G 1M 35W CPU AMD TurionII M500 2.2G 1M 35W CPU AMD TurionII M520 2.3G 1M 35W CPU AMD TurionII M540 2.4G 1M 35W CPU AMD Turion M600 2.4G 2M 35W Caspian Appendix - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 212
AthlonII M320 2.1G 1M 35W Caspian CPU AMD AthlonII M340 2.2G 1M 35W CPU AMD TurionII M500 2.2G 1M 35W CPU AMD TurionII M520 2.3G 1M 35W CPU AMD TurionII M540 2.4G 1M 35W CPU AMD Turion M600 2.4G 2M 35W Caspian CPU AMD Turion M620 2.5G 2M 35W Caspian CPU AMD Turion M640 2.6G 2M 35W Caspian AES1610 - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 213
BOM_Name AS4240_UMACbk BRAND HGST AS4240_UMACbk WD AS4240_UMACbk SEAGATE AS4240_UMACbk AS4240_UMACbk TOSHIBA HGST AS4240_UMACbk WD AS4540_UMACFbk SEAGATE AS4540_UMACFbk AS4540_UMACFbk TOSHIBA HGST AS4540_UMACFbk WD AS4540_UMACFbk SEAGATE AS4540_UMACFbk AS4540_UMACFbk TOSHIBA HGST - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 214
BOM_Name AS4540_UMACFbk BRAND SEAGATE AS4540_UMACFbk AS4540_UMACFbk TOSHIBA HGST AS4540_UMACFbk WD AS4540_UMACbk SEAGATE AS4540_UMACbk AS4540_UMACbk TOSHIBA HGST AS4540_UMACbk WD AS4540_UMACbk SEAGATE AS4540_UMACbk AS4540_UMACbk TOSHIBA HGST AS4540_UMACbk WD AS4540_UMACbk SEAGATE - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 215
AUO SAMSUNG LPL CMO CMO AUO AUO SAMSUNG LPL CMO CMO AUO AUO SAMSUNG LPL CMO Appendix B Type N500GB5.4KS Description HDD WD 2.5" 5400rpm 500GB WD5000BEVT-22ZAT0 ML250 SATA LF F/ W:01.01A01 AC4T AC4T AC4T Keyboard ACER AC4T JV40 Internal 14 Standard Black Texture Keyboard ACER AC4T JV40 Internal - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 216
NANYA MICRON SAMSUNG HYNIX NANYA MICRON AS4540_UMACbk AS4540_UMACbk AS4540_UMACbk AS4540_UMACbk SAMSUNG HYNIX NANYA MICRON Type NLED14WXGAG Description LED LCD CMO 14" WXGA Glare N140B6L02 C2 LF 220nit 8ms 400:1 SO1GBII6 SO1GBII6 SO1GBII6 SO1GBII6 SO2GBII6 SO2GBII6 SO2GBII6 SO2GBII6 SO1GBII6 - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 217
Foxconn Northbridge Chipset AS4240_UMACbk AS4540_UMACFbk AS4540_UMACbk ODD AS4240_UMACbk AMD AMD AMD TOSHIBA W/O bezel SATA ODD HLDS Super-Multi DRIVE 12.7mm Tray DL 8X GT20N LF W/O bezel CP03 SATA (Windows 7) ODD SONY Super-Multi DRIVE 12.7mm Tray DL 8X AD-7580S LF W/O bezel SATA ODD SONY - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 218
NSM8XS Southbridge Chipset AS4240_UMACbk AS4540_UMACFbk AS4540_UMACbk Software AS4240_UMACbk AMD AMD AMD AMDSB710 AMDSB710 AMDSB710 TOSHIBA Super-Multi DRIVE 12.7mm Tray DL 8X TS-L633B LF W/O bezel AC02 SATA (Windows 7) ODD PANASONIC Super-Multi DRIVE 12.7mm Tray DL 8X UJ880A LF W/O bezel SATA - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 219
WiFi 1x2 BGN 3rd WiFi 1x2 BGN 3rd WiFi 1x2 BGN 3rd WiFi 1x2 BGN Description Antivirus application McAfee Antivirus application McAfee UMA (AMD) UMA (AMD) UMA (AMD) PIFA PIFA PIFA Foxconn Wireless LAN Atheros AR5B91 1x2 BGN Foxconn Wireless LAN Wireless LAN Ralink RT2700E 1x2 BGN QMI Wireless LAN - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 220
210 Appendix B - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 221
valuable support resources whenever you need them. In the Technical Information section you can download information on all of Acer's Notebook, Desktop and Server models including: • Service guides for all models • User's manuals • Training materials • Bios updates • Software utilities • Spare parts - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 222
212 Appendix C - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 223
31 Antennas 93 B Battery Pack Removing 44 BIOS Utility 23-31 Boot 29 Exit 30 Navigating 23 Onboard Device Configuration 27 Power 29 Save and Exit 30 Security 26 System Security 30 Bluetooth Module Removing 75 Board Layout Top View 161 C Camera Module 89 Common Problems 138 computer on indicator - Acer Aspire 4540 | Acer Aspire 4540 Series Service Guide - Page 224
141 MediTouch Buttons 151 No Display 139 Other Failures 153 Power On 138 Thermal Unit 152 Touchpad 142 USB 149 WLAN 150 U Undetermined Problems 154 Upper Cover Removing 67 USB Board Removing 77 USB Failure (Rightside) 149 utility BIOS 23-31 W Windows 2000 Environment Test 200 Wireless Function