Acer Aspire 4820T_SG - Acer Support

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Bottom View Item Description Item Desciption CN15 CRT CN18 HDMI CN19 LAN CN20 USB CN24 MIC CN25 SPDIF CN22 RTC CN14 FAN CONN. U28 CPU SOCKET PJ1 BATT CONN. CN16 3G MINI CARD JDIM1/ JDIM2 DDR CONN. CN23 MINI CARD WLAN PJ2 POWER JACK CN17 SATA ODD CN21 SATA HDD 134 Chapter 5
Clearing Password Check and BIOS Recovery This section provide you the standard operating procedures of clearing password and BIOS recovery. <strong>Acer</strong> <strong>Aspire</strong> 480T provides one Hardware Open Gap on the main board for clearing password check, and one Hotkey for enabling BIOS Recovery. Clearing Password Check Hardware Open Gap Description is as follows: Item Description Location G1 / G2 Clear CMOS Jumpers WiFi 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 enter to BIOS Setup menu. However, once it is necessary to bypass the password check, users need to short the HW Gap to clear the password by the following steps: 1. Power Off the system, and remove HDD, AC and Battery from the machine. 2. Open the Memory Cover of the machine and locate the J1 and J2 jumpers. 3. Use an electric conductivity tool to short the two points of the HW Gap. 4. Plug in AC, keep the short condition on the HW Gap, and press Power Button to power on the system till BIOS POST finish. Then remove the tool from the HW Gap. 5. Restart system. Press F2 key to enter BIOS Setup menu. 6. If there is no Password request, BIOS Password is cleared. Otherwise, please follow the steps and try again. NOTE: These steps are only for clearing BIOS Password (Supervisor Password and User Password). Chapter 5 135 G2 G1
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Acer Aspire 4820T Service Guide Ser
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Copyright Copyright © 2010 by Acer
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Preface Before using this informati
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2 Removing the USB Board 64 Removin
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Table of Contents System Specificat
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Table of Contents Built-In Keyboard
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System Specifications Features Belo
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Privacy control • BIOS user, supe
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Warranty Environment • External U
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Your Acer Notebook tour After knowi
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Closed Front View Left View 1 No. I
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Bottom View 1 2 3 No. Icon Item Des
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TouchPad Basics The following items
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Windows Keys The keyboard has two k
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Hardware Specifications and Configu
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Specifications • IEEE 802.11b/g a
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Applicable disc formats Item Specif
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Temperature Range (°C) Operating S
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System Utilities BIOS Setup Utility
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Main The Main screen allows the use
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Setting a Password Follow these ste
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Boot This menu allows the user to d
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BIOS Flash Utilities The BIOS flash
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4. In flash BIOS, the message Pleas
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Remove HDD/BIOS Password Utilities
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Using Boot Sequence Selector The Bo
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Using the LAN MAC EEPROM Utility Yo
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Machine Disassembly and Replacement
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External Module Disassembly Process
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Removing the SD dummy card 1. Push
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Removing the Lower Cover 1. See “
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Step Size Quantity Screw Type ODD B
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Removing the WLAN Module 1. See “
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Main Unit Disassembly Process Main
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4. Release each clip, working from
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3. Disconnect A as shown. 4. Releas
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Removing the Power Switch Board 1.
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Removing the Left Speaker Module 1.
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5. Lift the USB Board upward away f
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Removing the Bluetooth Module 1. Se
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Step Size Quantity Screw Type LCD M
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Step Size Quantity Screw Type Mainb
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Removing the CPU 1. See “Removing
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Removing the Right Speaker 1. See S
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LCD Module Disassembly Process LCD
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4. Lift the Bezel clear of the LCD
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Removing the FPC Cable 1. See “Re
Page 97 and 98: Removing the Antennas 1. See “Rem
Page 99 and 100: LCD Module Reassembly Procedure Rep
Page 101 and 102: Replacing the FPC Cable Attach the
Page 103 and 104: Replacing the LCD Bezel 1. Locate t
Page 105 and 106: Main Module Reassembly Procedure Re
Page 107 and 108: 2. Replace the two (2) screws to se
Page 109 and 110: 3. Align the screw holes on the The
Page 111 and 112: 7. Snap the FPC cable into place. 8
Page 113 and 114: Replacing the USB Board 1. Replace
Page 115 and 116: Replacing the Function Board 1. Rep
Page 117 and 118: 4. Replace the eight (8) securing s
Page 119 and 120: Replacing the Keyboard 1. Place the
Page 121 and 122: Replacing the WLAN Board 1. Insert
Page 123 and 124: Replacing the Lower Covers 1. Repla
Page 125 and 126: Replacing the Battery Pack 1. Slide
Page 127 and 128: Troubleshooting Common Problems Use
Page 129 and 130: No Display Issue If the Display doe
Page 131 and 132: LCD Failure If the LCD fails, perfo
Page 133 and 134: Sound Problems If sound problems ar
Page 135 and 136: ODD Failure If the ODD fails, perfo
Page 137 and 138: . Double-click IDE ATA/ATAPI contro
Page 139 and 140: External Mouse Failure If an extern
Page 141 and 142: Post Codes These tables describe th
Page 143 and 144: Functionality Name (Include\ PostCo
Page 145 and 146: Functionality Name (Include\ PostCo
Page 147: Jumper and Connector Locations Top
Page 151 and 152: FRU (Field Replaceable Unit) List C
Page 153 and 154: No. Description Acer P/N No. Descri
Page 155 and 156: Acer Aspire 4820T FRU List ADAPTER
Page 157 and 158: Category Part Name Description CPU/
Page 159 and 160: KEYBOARD Category Part Name Descrip
Page 161 and 162: Category Part Name Description LCD
Page 163 and 164: HEATSINK SPEAKER Category Part Name
Page 165 and 166: Chapter 6 151
Page 167 and 168: Country Luxembour g LX.PSE 02.159 B
Page 169 and 170: Country Acer Part No Thailand LX.PS
Page 171 and 172: Country South Africa LX.PSE 02.091
Page 173 and 174: Country Eastern Europe Acer Part No
Page 175 and 176: Country Eastern Europe LX.PSE 02.02
Page 177 and 178: Country Acer Part No Turkey LX.PSG
Page 179 and 180: Country Spain LX.PSG 02.081 Denmark
Page 181 and 182: Country South Africa LX.PSG 02.050
Page 183 and 184: Country Eastern Europe Serbia/ Mace
Page 185 and 186: Country Holland LX.PSN 02.085 Belgi
Page 187 and 188: Country Middle East LX.PSN 02.041 S
Page 189 and 190: Model Country AS4820TG- 524G64Mn AS
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Model Country AS4820TG- 433G32Mn AS
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Model Country AS4820T- 333G32Mn AS4
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Model Country Acer Part No Memory 1
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Test Compatible Components Appendix
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Item Vendor Description P/N ADAPTER
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Item Vendor Description P/N 90W LIT
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Item Vendor Description P/N 6CELL3.
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Item Vendor Description P/N BLUETOO
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Item Vendor Description P/N 1.3M Li
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Item Vendor Description P/N Ci7620M
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Item Vendor Description P/N Ci3330M
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Item Vendor Description P/N N500GB5
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Item Vendor Description P/N SSD2516
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Item Vendor Description P/N NLED14W
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Item Vendor Description P/N SO2GBII
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Item Vendor Description P/N SO4GBII
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Item NB CHIPSET Vendor Description
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Item Vendor Description P/N NSM8XS9
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Item Vendor Description P/N PIFA WN
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Online Support Information This sec
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A B C D E F AFLASH Utility 27 Anten
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