Acer Aspire 3620 TravelMate 2420 / Aspire 3620 Service Guide
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- Acer Aspire 3620 | TravelMate 2420 / Aspire 3620 Service Guide - Page 1
Aspire 3620/TravelMate 2420 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 3620 | TravelMate 2420 / Aspire 3620 Service Guide - Page 2
Revision History Please refer to the table below for the updates made on Aspire 3620/TravelMate 2420 service guide. Date 2006/01/13 Chapter Chapter 1 Updates Add Intel® Pentium® M 730/740 Processor (2 MB L2 cache, 1.73GHz, 533 MHz FSB) to page 1. II - Acer Aspire 3620 | TravelMate 2420 / Aspire 3620 Service Guide - Page 3
, manual or otherwise, without the prior written permission of Acer Incorporated. Disclaimer The information in this guide is subject to change without notice. Acer Incorporated makes no representations or warranties, either expressed or implied, with respect to the contents hereof and specifically - Acer Aspire 3620 | TravelMate 2420 / Aspire 3620 Service Guide - Page 4
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 doing or not doing specific actions. Gives - Acer Aspire 3620 | TravelMate 2420 / Aspire 3620 Service Guide - Page 5
card, modem, or extra memory capability). These LOCALIZED FEATURES will NOT be covered in this generic service guide. In such cases, please part number change is made, it will not be noted in the printed Service Guide. For ACER-AUTHORIZED SERVICE PROVIDERS, your Acer office may have a DIFFERENT part - Acer Aspire 3620 | TravelMate 2420 / Aspire 3620 Service Guide - Page 6
VI - Acer Aspire 3620 | TravelMate 2420 / Aspire 3620 Service Guide - Page 7
42 Boot 46 Exit 47 BIOS Flash Utility 48 Chapter 3 Machine Disassembly and Replacement 49 General Information 50 Before You Begin 50 Disassembly Procedure Flowchart 51 Removing the Battery Pack 53 Removing the Wireless LAN Card/the HDD Module/the Memory/ the ODD Module and the LCD Module - Acer Aspire 3620 | TravelMate 2420 / Aspire 3620 Service Guide - Page 8
LCD Module 62 Disassembling the External Modules 64 Disassembling the HDD Module 64 Disassembling the ODD Module 64 Chapter 4 Troubleshooting 65 System Check Procedures 66 External Diskette Drive Check 66 External CD-ROM Drive Check 66 Keyboard or Auxiliary Input Device Check 66 Memory - Acer Aspire 3620 | TravelMate 2420 / Aspire 3620 Service Guide - Page 9
/100 hard disk drive T Optical drive options: tDVD-Dual double layer drive tDVD/CD-RW combo drive Input devices T 88/89-key keyboard T Built-in touchpad with 4-way integrated scroll button T Four easy-launch buttons T Two front-access buttons: WLAN LED-button and Bluetooth® LED-button Audio T Audio - Acer Aspire 3620 | TravelMate 2420 / Aspire 3620 Service Guide - Page 10
T Full-size keyboard with four programmable launch keys T Ergonomically-centered touchpad pointing device T Internet 4-way scroll button I/O Ports T T T T T T T T T Three USB 2.0 ports PC Card slot (one type II) External display (VGA) port Headphones/speaker/line-out jack with S/PDIF Microphone-in - Acer Aspire 3620 | TravelMate 2420 / Aspire 3620 Service Guide - Page 11
In 27 Codec ACLINK ALC655 26 Mobile CPU Dothan 4, 5 HOST BUS 400MHz Intel 910GML G792 19 RGB LVDS CRT CONN 14 LCD XGA 13 6,7,8,9,10 DMI I/F 100MHz LPC BUS 15,16,17,18 PATA CD ROM 20 USB 4 PORT 21 MINI USB 21 Blue-tooth KBC ENE KB3910 29 Xbus BIOS ROM 4M BITS PM39LV040-70JCE 31 Touch - Acer Aspire 3620 | TravelMate 2420 / Aspire 3620 Service Guide - Page 12
Connector Touchpad Cable Connector 7 BLUE1 8 U39 9 RTC1 10 U40 5 LCD1 LCD Cable Connector 11 SPKR1 6 LAUNCH1 Launch Board Cable Connector Bluetooth Cable Connector LAN Connector: RTL8100CL RTC Battery Connector Keyboard Controller: ENE CB1410QF Speaker Set Cable Connector 4 Chapter 1 - Acer Aspire 3620 | TravelMate 2420 / Aspire 3620 Service Guide - Page 13
U41 CPU Socket 9 U38 North Bridge () 10 FAN1 System Fan Cable Connector 11 BAT1 Battery Connector 12 U South Bridge () 13 ODD1 ODD Connector 14 WIN1 Wireless LAN Card Slotr 15 DM1 DIMM Slot1 16 DM3 DIMM Slot2 17 U44 Keyboard Controller (ENE KB3910SF) 18 U49 BIOS ROM 19 U32 Audio Codec - Acer Aspire 3620 | TravelMate 2420 / Aspire 3620 Service Guide - Page 14
Jumper Settings PIN Pin1-Pin8 Pin2-Pin7 Pin3-Pin6 Pin4-Pin5 Description Clear Password No Function No Function No Function 6 Chapter 1 - Acer Aspire 3620 | TravelMate 2420 / Aspire 3620 Service Guide - Page 15
Your Acer Notebook tour After knowing your computer features, let us show you around your new TravelMate computer. Aspire 3620 front View Chapter 1 7 - Acer Aspire 3620 | TravelMate 2420 / Aspire 3620 Service Guide - Page 16
2420 front view # Icon Item Description 1 Display screen Also called LCD (liquid-crystal display), displays computer output. 2 the center button serves as a 4-way scroll button. 6 Palmrest Comfortable support area for our hands when you use the computer. 7 Microphone Internal - Acer Aspire 3620 | TravelMate 2420 / Aspire 3620 Service Guide - Page 17
line-in devices (e.g., audio CD player, stereo walkman). 5 Microphone-in jack Accepts input from external microphones. 6 Headphones/ Connects to audio line-out devices speakers/line-out jack (e.g., speakers, headphones). with S/PDIF support 7 Battery indicator Indicates the computer - Acer Aspire 3620 | TravelMate 2420 / Aspire 3620 Service Guide - Page 18
Ejects the optical drive tray when the computer is turned off. 6 PC Card slot eject Ejects the PC Card from the slot. button 7 PC Card slot Accepts on Type II PC Card. Right View # 1 2 3 10 Icon Item Three USB 2.0 ports Description Connect to USB 2.0 devices (e.g., USB mouse, USB camera - Acer Aspire 3620 | TravelMate 2420 / Aspire 3620 Service Guide - Page 19
DC-in jack External display (VGA) port Battery Bottom Panel Description Connects to an AC adapter. Connects to a display device(e.g., external monitor, LCD projector). Powers the computer # Item 1 Battery lock 2 Cooling fan Description Locks the battery in position. Helps keep the computer - Acer Aspire 3620 | TravelMate 2420 / Aspire 3620 Service Guide - Page 20
pack. Indicators The computer has four easy-to-read status indicators on the upper-right above the keyboard, and four on the front panel. Aspire 3620: TravelMate 2420: The power, battery and wireless communication status indicators are visible even when the LCD display is closed. 12 Chapter 1 - Acer Aspire 3620 | TravelMate 2420 / Aspire 3620 Service Guide - Page 21
Lights when Num Lock is activated. HDD Bluetooth Wireless LAN Battery Power Indicates when the hard disc or optical drive is active. Indicates the status of Bluetooth communication. Indicates the status of wireless LAN communication. Lights up when the battery is being charged. Lights up when the - Acer Aspire 3620 | TravelMate 2420 / Aspire 3620 Service Guide - Page 22
Mail Default application User-programmable User-programmable Acer Empowering Technology (user-programmable) Internet browser (user-programmable) Email application (user-programmable) Touchpad Basics The following teaches you how to use the touchpad: Aspire 3620: TravelMate 2420: 14 Chapter 1 - Acer Aspire 3620 | TravelMate 2420 / Aspire 3620 Service Guide - Page 23
Press the left (1) and right (4) buttons located beneath the touchpad to perform selection and execution your cursor pressing on the right scroll bar of Windows applications. Function Execute Left Button (1) Click twice quickly hard will not increase the touchpad's responsiveness. Chapter 1 15 - Acer Aspire 3620 | TravelMate 2420 / Aspire 3620 Service Guide - Page 24
Windows keys and twelve function keys. Lock Keys and embedded numeric keypad The keyboard has three lock keys which you can toggle on and off. Aspire 3620 data entry. A better solution would be to connect an external keypad. When Scroll Lock is on, the screen moves one line up or down when you press - Acer Aspire 3620 | TravelMate 2420 / Aspire 3620 Service Guide - Page 25
the letters in a normal manner. Windows Keys The keyboard has two keys that perform Windows-specific functions. Key Windows key Applicati on key Icon Description BIOS utility. To activate hot keys, press and hold the key before pressing the other key in the hotkey combination. Aspire 3620: - Acer Aspire 3620 | TravelMate 2420 / Aspire 3620 Service Guide - Page 26
Fn-F3 Fn-F4 Acer ePowerManagement Launches the Acer ePowerManagement in Acer eManager. Sleep Puts the computer in Sleep mode. Fn-F5 Fn-F6 Fn-F7 Display toggle Screen blank Touchpad toggle Switches display output between the display screen, external monitor (if connected) and both. Turns the - Acer Aspire 3620 | TravelMate 2420 / Aspire 3620 Service Guide - Page 27
screen brightness Special Key You can locate the Euro symbol and US dollar sign at the upper-center and/or bottom-right of your keyboard. To type: Aspire 3620 version. NOTE: Some fonts and software do not support the Euro symbol. Please refer to www.microsoft.com/ typography/faq/faq12.htm for more - Acer Aspire 3620 | TravelMate 2420 / Aspire 3620 Service Guide - Page 28
Acer notebook. It features the following handy utilities: T Acer eDataSecurity Management protects data with passwords and advanced encryption algorithms. T Acer easily. T Acer ePower Management extends battery power via versatile usage profiles. T Acer ePresentation Management connects to a - Acer Aspire 3620 | TravelMate 2420 / Aspire 3620 Service Guide - Page 29
that can be used to encrypt/decrypt a file; the supervisor passowrd and the filespecific password. The supervisor passwork is a "master" password that cna decrypt any file on your system; the file-specific password will be used to encrypt files by default, or you cna choose to enter your own - Acer Aspire 3620 | TravelMate 2420 / Aspire 3620 Service Guide - Page 30
USB MP3 drives, USB memory card readers, IEEE 1394 disk drives and any other removable disk drives that can be mounted as a file system when plugged into the system. T Optical drive deivces - includes any kind of CD-ROM or DVD-ROM drives. T Floppy disk drives - 3.5-inch disks only. To activate Acer - Acer Aspire 3620 | TravelMate 2420 / Aspire 3620 Service Guide - Page 31
Acer notebook. It provides you with the following options to enhance overall system performance: T Memory optimization - releases unused memory and check usage. T Disk optimization - removes unneeded items and files. T Speed optimization - improves the usability and performance of your Windows XP - Acer Aspire 3620 | TravelMate 2420 / Aspire 3620 Service Guide - Page 32
. User-created backups are stored on D:\ drive. Acer eRecovery Management provides you with: T Password protection. T Recovery of applications and drivers. T Image/data backup: T Back up to HDD (set recovery point). T Back up to CD/DVD. T Image/data recovery tools: T Recover from a hidden partition - Acer Aspire 3620 | TravelMate 2420 / Aspire 3620 Service Guide - Page 33
computer has one), including your Acer ezDock. Acer eSettings Management Acer eSettings Management allows you to inspect hardware specifications and to monitor the system health status. Furthermore, Acer eSettings Management enables you to optimize your Windows operating system, so your computer - Acer Aspire 3620 | TravelMate 2420 / Aspire 3620 Service Guide - Page 34
ePower Management icon in the task tray. Acer Mode The default setting is "Maximum Performance." You can adjust CPU speed, LCD brightness and other settings, or click on buttons to turn the following functions on/off: Wireless LAN, Bluetooth, CardBus, Memory Card, Audio, and Wired LAN. DC Mode To - Acer Aspire 3620 | TravelMate 2420 / Aspire 3620 Service Guide - Page 35
You can also click "Advanced Settings" to: T Set alarms. T Re-load factory defaults. T Select what actions will be taken when the cover is closed, and set passwords for accessing the system after Hibernation or Standby. T View information about Acer ePower Management. Chapter 1 27 - Acer Aspire 3620 | TravelMate 2420 / Aspire 3620 Service Guide - Page 36
Acer ePresentation Management Acer ePresentation Management lets you select from two of the most common projector resolutions: XGA and SVGA. 28 Chapter 1 - Acer Aspire 3620 | TravelMate 2420 / Aspire 3620 Service Guide - Page 37
3A03 PMC PM39LV040, 512KX8 CMOS Boot Block Flash Memory 512KB Flash BIOS 32-pin PLCC ACPI 1.0b, PC Card 95, SM BIOS 2.3, IEEE1284-ECP/EPP, PCI 2.2, PnP 1.0a, DMI 2.0, PS/2 keyboard and mouse, USB 2.0, VGA BIOS, CD-ROM bootable, IEEE 1394 Set by setup manual Specification Built-in CPU 2MB for Intel - Acer Aspire 3620 | TravelMate 2420 / Aspire 3620 Service Guide - Page 38
512MB 1024MB 0MB 128MB 256MB 512MB 1024MB Slot 2 Total Memory 128MB 256MB 512MB 1024MB 256MB 384MB 640MB 1152MB 384MB 512MB support compliant with ACPI 2.0 PCI v2.2 Modem Interface Item Data modem data baud rate (bps) Supports modem protocol Modem connector type Modem connector location Bluetooth - Acer Aspire 3620 | TravelMate 2420 / Aspire 3620 Service Guide - Page 39
when SIG specification is ratified). USB 1.1 Mini-USB Wireless Module 802.11b/g (optional device) Item Chipset Data throughput Protocol Interface Specification Built-in ICH6-M 11~54 Mbps 802.11b+g Mini-PCI type II (What does PCI Bus means on the system block diagram?) Hard Disk Drive Interface - Acer Aspire 3620 | TravelMate 2420 / Aspire 3620 Service Guide - Page 40
DVD-RW, DVD-RAM (2.6GB, 4.7GB) CD: CD-DA, CD-ROM, CD-ROM XA, CD-R, CD-RW Photo (Multisession) Video CD, CD-Extra, (CD+), CD-test Load: Manual Release: (a) Electrical Release (Release Button) (b) Release by ATAPI command (c) Emergency Release 5 V +/- 5 % (Operating) Specification LITEON SOSW-833S - Acer Aspire 3620 | TravelMate 2420 / Aspire 3620 Service Guide - Page 41
rate Internal microphone Internal speaker / Quantity Video Interface Item Chipset Package Interface Supports ZV (Zoomed Video) port Video Memory Item Chipset Memory size Interface USB Port Item Chipset USB Compliancy Level OHCI Number of USB port Location Serial port function control PCMCIA Port - Acer Aspire 3620 | TravelMate 2420 / Aspire 3620 Service Guide - Page 42
Item Core logic VGA LAN USB 2.0 Super I/O controller MODEM Bluetooth Wireless 802.11 b+g PCMCIA Audio Keyboard Item Keyboard controller Total number of keypads Windows logo key Internal & external keyboard work simultaneously Battery Item Vendor & model name Battery Type Pack capacity Number of - Acer Aspire 3620 | TravelMate 2420 / Aspire 3620 Service Guide - Page 43
LCD 14.1" inch Item Vendor & model name Screen Diagonal (mm) Active Area (mm) Display resolution (pixels) Pixel Pitch Pixel Arrangement Display Mode Typical White Luminance (cd ) Specification AU B141EW01 14.1 RGB 6-bit data driver) 40/40 10/30 0 to +50 -20 to +60 CMO N141I1L02 14.1 inches 304.1x228 - Acer Aspire 3620 | TravelMate 2420 / Aspire 3620 Service Guide - Page 44
G3) Soft Off (G2/S5) Working (G0/S0) Suspend to RAM (S3) Save to Disk (S4) Specification 1.7A 220A@115VAC 220A@230VAC 82% min. @115VAC input full as the CPU and hard disc may be power managed in this state. CPU set power down VGA Suspend PCMCIA Suspend Audio Power Down Hard Disk Power Down CD-ROM - Acer Aspire 3620 | TravelMate 2420 / Aspire 3620 Service Guide - Page 45
run Setup. Please also refer to Chapter 4 Troubleshooting when problem arises. To activate the BIOS Utility, press m during POST (when "Press to enter Setup" message is prompted on the bottom of screen). Press m to enter setup. The default parameter of F12 Boot Menu is set to "disabled". If you - Acer Aspire 3620 | TravelMate 2420 / Aspire 3620 Service Guide - Page 46
Navigating the BIOS Utility There are six menu options: Info., Main, System Devices, Security, Boot, and Exit. Follow these instructions: T To choose a menu, use the cursor left/right keys (zx). T To choose a parameter, use the cursor up/down keys ( wy). T To change the value of a - Acer Aspire 3620 | TravelMate 2420 / Aspire 3620 Service Guide - Page 47
: None ATAPI Serial Number : None System BIOS Ver: V0.05 VGA BIOS Ver 1227 KBC Ver 01.00 Serial Number xxxxxxxxxxxxxxxxxxxxxx Asset Tag Number N/A 22 Byte Produce Name Aspire 3620/TravelMate 2420 32 Byte Manufacturer Name: Acer 16 Byte UUID: xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx 16 Byte - Acer Aspire 3620 | TravelMate 2420 / Aspire 3620 Service Guide - Page 48
PC AT system parameters. PhoenixBIOS Setup Utility Information Main Security Boot Exit System Time: System Date: System Memory: Extended Memory: Video Memory Quiet Boot: Power on display: Network boot F12 Boot Menu D2D Recovery Item Specific Help [09:03:49] [11/29/2005] , - Acer Aspire 3620 | TravelMate 2420 / Aspire 3620 Service Guide - Page 49
LCD screen and the system's external video port (for an external CRT or projector). Option: Auto or Both Enables, disables the system boot from LAN (remote server). Option: Enabled or Disabled Enables, disables Boot Menu during POST. Option: Disabled or Enabled Enables, disables D2D Recovery - Acer Aspire 3620 | TravelMate 2420 / Aspire 3620 Service Guide - Page 50
Setup Utility Information Main Security Boot Exit User Password is : Supervisor Password is : Set User Password Set Supervisor Password Primary HardDisk Security Password on Boot Clear Clear [Enter] [Enter] [Disabled] [Disabled] Item Specific Help Supervisor Password controls accesses of the - Acer Aspire 3620 | TravelMate 2420 / Aspire 3620 Service Guide - Page 51
on the screen. 3. Press e. After setting the password, the computer sets the User Password parameter to "Set". 4. If desired, you can opt to enable the Password on boot parameter. 5. When you are done, press u to save the changes and exit the BIOS Setup Utility. Removing a Password Follow these - Acer Aspire 3620 | TravelMate 2420 / Aspire 3620 Service Guide - Page 52
parameter to "Set". 5. If desired, you can enable the Password on boot parameter. 6. When you are done, press u to save the changes and exit the BIOS Setup Utility. If the verification is OK, the screen will display as following. The password setting is complete after the user presses u. If the - Acer Aspire 3620 | TravelMate 2420 / Aspire 3620 Service Guide - Page 53
If the new password and confirm new password strings do not match, the screen will display the following message. Chapter 2 45 - Acer Aspire 3620 | TravelMate 2420 / Aspire 3620 Service Guide - Page 54
system. Bootable devices includes the distette drive in module bay, the onboard hard disk drive and the CD-ROM in module bay. PhoenixBIOS Setup Utility Information Main Security Boot Exit +Hard Drive Floppy Devices CD-ROM/DVD Drive Network Boot Item Specific Help Keys used to view or - Acer Aspire 3620 | TravelMate 2420 / Aspire 3620 Service Guide - Page 55
unauthorized use. Information Main PhoenixBIOS Setup Utility Security Boot Exit Exit Saving Changes Exit Disarding Changes Load Setup Defaults Discard Changes Save Changes Item Specific Help Exit System Setup and save your changes to CMOS. F1 Help Esc Exit ↑ ↓ Select Item ← → Select Menu - Acer Aspire 3620 | TravelMate 2420 / Aspire 3620 Service Guide - Page 56
Utility The BIOS flash memory update is required for the following conditions: T New versions of system programs T New features or options T Restore a BIOS when it becomes corrupted. Use the Phlash utility to update the system BIOS flash ROM. NOTE: If you do not have a crisis recovery diskette at - Acer Aspire 3620 | TravelMate 2420 / Aspire 3620 Service Guide - Page 57
procedures on how to disassemble the notebook computer for maintenance and troubleshooting. To disassemble the computer, you need the following tools: T Wrist grounding strap and conductive mat for preventing electrostatic discharge T Small Philips screw driver T Philips screwdriver T Plastic flat - Acer Aspire 3620 | TravelMate 2420 / Aspire 3620 Service Guide - Page 58
General Information Before You Begin Before proceeding with the disassembly procedure, make sure that you do the following: 1. Turn off the power to the system and all peripherals. 2. Unplug the AC adapter and all power and signal cables from the system. 3. Remove the battery pack. 50 Chapter 3 - Acer Aspire 3620 | TravelMate 2420 / Aspire 3620 Service Guide - Page 59
Cover Memory P*1 Keyboard ODD Module E*1 J*2 on bottom side K*2 on top side LCD Module E*1 on upper case assemby E*12 on bottom side F*3 on bottom side A*2 on rear side H*3 HDD Cover Wireless LAN Card O*4 HDD Module M*4 HDD Bracket HDD Lower Case Assembly O*2 RTC Battery Bluetooth Module - Acer Aspire 3620 | TravelMate 2420 / Aspire 3620 Service Guide - Page 60
LCD Bezel I*2 LCD Panel LCD Assembly G*8 I*2 LCD Inverter LCD LCD Wire Cable LCD Brackets Screw List Item Description A SCW HEX NYL I#R-40/O#4-40 L5.5 B SCREW MACH WAFER M2*L4 NI C CPU SCREW M2.5*4.3L (2.3 KG) D CPU NI P SCRW M2.5*3 WAFER NI Part Number 34.00015.081 86.00059.220 - Acer Aspire 3620 | TravelMate 2420 / Aspire 3620 Service Guide - Page 61
Removing the Battery Pack 1. Unlock the battery lock. 2. Slide the battery latch then remove the battery. Chapter 3 53 - Acer Aspire 3620 | TravelMate 2420 / Aspire 3620 Service Guide - Page 62
/the HDD Module/the Memory/the ODD Module and the LCD Module Removing the Memory and the HDD Module 1. Remove the five screws fastening the DIMM cover. 2. Detach the DIMM cover carefully. 3. Pop out the memory carefully. 4. Disconnect wireless main and auxiliary antenna from the wireless LAN card - Acer Aspire 3620 | TravelMate 2420 / Aspire 3620 Service Guide - Page 63
Removing the ODD Module 1. First, remove the screw fastening the ODD module as shown. 2. Push the ODD module outwards then remove it. Removing the LCD Module 1. Detach the middle cover from the main uiit carefully. 2. Disconnect the launch board FFC from the launch board. 3. Remove the middle cover - Acer Aspire 3620 | TravelMate 2420 / Aspire 3620 Service Guide - Page 64
keyboard as shown. 10. Disconnect the keyboard cable. 11. Remove the keyboard from the main unit. 12. Tear off the tapes fastening the wireless antenna cable. 13. Pull the antenna set from the main unit. 14. Disconnect the LCD cable. 15. Turn over the notebook then remove two screws fastening the - Acer Aspire 3620 | TravelMate 2420 / Aspire 3620 Service Guide - Page 65
16. Remove two screws fastening the LCD hinges. 17. Then detach the LCD module from the main unit. Chapter 3 57 - Acer Aspire 3620 | TravelMate 2420 / Aspire 3620 Service Guide - Page 66
the lower case assembly carefully. Disassembling the Lower Case Assembly 4. Turn over the lower case assembly to the bottom side, then disconnect the fan cable. 5. Turn over the lower case assemlby to the fron side, then detach the bluetooth module. 6. Disconnect the Bluetooth cable from the main - Acer Aspire 3620 | TravelMate 2420 / Aspire 3620 Service Guide - Page 67
out the speaker set from the lower case. 13. Remove the three screws fastening the system fan. 14. Detach the fan from the lower case. 15. Disconnect the RTC battery cable then detach the RTC battery. 16. Disconnect the launch board FFC from the main board. 17. Disconnect the modem cable from - Acer Aspire 3620 | TravelMate 2420 / Aspire 3620 Service Guide - Page 68
the heatsink. 21. Remove the heatsink from the main board. 22. Use a flat-headed screwdriver to release the CPU socket lock. 23. Remove the CPU from the CPU socket carefully. Disassembling the Upper Case Assembly 1. Remove the two screws fastening the LED board. 2. The remove the LED board from - Acer Aspire 3620 | TravelMate 2420 / Aspire 3620 Service Guide - Page 69
5. Remove the four screws fastening the touchpad bracket. 6. Remove the touchpad bracket (with touchpad). 7. Detach the touchpad from the touchpad bracke.t Chapter 3 61 - Acer Aspire 3620 | TravelMate 2420 / Aspire 3620 Service Guide - Page 70
. 6. Remove the two screws holding the LCD to the LCD panel. 7. Remove the LCD assembly from the LCD panel as shown. 8. Remove the two screws fastening the wireless antenna set. 9. Detach the wireless antenna set from the LCD panel on one side. 10. Detach the wireless antenna set on the other side - Acer Aspire 3620 | TravelMate 2420 / Aspire 3620 Service Guide - Page 71
the tape fastening the LCD cable. 14. Disconnect the LCD cable from the LCD. 15. Tear off another tape holding the LCD cable. 16. Remove the four screws fastening the LCD right bracket. 17. Remove the right bracket from the LCD. 18. Remove the four screws fastening the LCD left bracket. 19. Remove - Acer Aspire 3620 | TravelMate 2420 / Aspire 3620 Service Guide - Page 72
the HDD Module 1. Remove the four screws fastening the HDD bracket. 2. Remove the HDD bracket. Disassembling the ODD Module 1. Remove the two screws holding the ODD fix holder bracket. 2. Then remove the ODD fix holder bracket. 3. Reove the two screws fastening - Acer Aspire 3620 | TravelMate 2420 / Aspire 3620 Service Guide - Page 73
Chapter 4 Troubleshooting Use the following procedure as a guide for computer problems. NOTE: The diagnostic tests are intended to test only Acer products. Non-Acer products, prototype cards, or modified options can give false errors and invalid system responses. 1. Obtain the failing symptoms in as - Acer Aspire 3620 | TravelMate 2420 / Aspire 3620 Service Guide - Page 74
damage to the drive or can cause the drive to fail. Do the following to select the test device: 1. Boot from the diagnostics diskette and start the diagnostics program. 2. See if CD-ROM Test is passed when the program runs to CD-ROM Test. 3. Follow the instructions in the message window. If an error - Acer Aspire 3620 | TravelMate 2420 / Aspire 3620 Service Guide - Page 75
error messages on the screen, or hang the system. 1. Boot from the diagnostics diskette and start the doagmpstotics program (please refer to main board. 2. Go to the diagnostic memory in the test items. 3. Press F2 in the test items. 4. Follow the instructions in the message window. NOTE: Make sure - Acer Aspire 3620 | TravelMate 2420 / Aspire 3620 Service Guide - Page 76
voltage is within the range, do the following: T Replace the System board. T If the problem is not corrected, see "Undetermined Problems" on page 82. T If the voltage is not correct, go to the next step. the operational charge does not work, see "Check the Battery Pack" on page 69. 68 Chapter 4 - Acer Aspire 3620 | TravelMate 2420 / Aspire 3620 Service Guide - Page 77
Power Meter, confirm that if the parameters shown in the screen for Current Power Source and Total Battery Power Remaining are correct. 3. Repeat the steps 1 and 2, for both battery and adapter. 4. This helps you identify first the problem is on recharging or discharging. From Hardware: 1. Power off - Acer Aspire 3620 | TravelMate 2420 / Aspire 3620 Service Guide - Page 78
also help you determine the next possible FRU to be replaced when servicing a computer. If the symptom is not listed, see "Undetermined Problems" on page 82. The following lists the error messages that the BIOS displays on the screen and the error symptoms classified by function. NOTE: Most of the - Acer Aspire 3620 | TravelMate 2420 / Aspire 3620 Service Guide - Page 79
Causes: 1. CPU BIOS Update Code Mismatch 2. IDE Primary Channel Master Drive Error (THe causes will be shown before "Equipment Configuration Error") Memory Error at xxxx:xxxx:xxxxh (R:xxxxh, W:xxxxh) Real Time Clock Error CMOS Battery Bad CMOS Checksum Error System disabled. Incorrect password is - Acer Aspire 3620 | TravelMate 2420 / Aspire 3620 Service Guide - Page 80
. System board Previous boot incomplete - Default configuration used Run "Load Default Settings" in BIOS Setup Utility. RTC battery System board Memory size found by POST differed from CMOS Run "Load Default Settings" in BIOS Setup Utility. DIMM System board Diskette drive A error Check the - Acer Aspire 3620 | TravelMate 2420 / Aspire 3620 Service Guide - Page 81
is connected tightly and correctly. Reconnect the DIMM. LED board. System board. No beep, power-on indicator turns on and LCD is blank. Power source (battery pack and power adapter). See "Power System Check" on page 67.. Reconnect the LCD connector Hard disk drive LCD inverter ID LCD cable LCD - Acer Aspire 3620 | TravelMate 2420 / Aspire 3620 Service Guide - Page 82
with initial POST values Restore CPU control word during warm boot Initialize PCI Bus Mastering devices Initialize keyboard controller BIOS ROM checksum Initialize cache before memory autosize 8254 timer initialization 8237 DMA controller initialization Reset Programmable Interrupt Controller Test - Acer Aspire 3620 | TravelMate 2420 / Aspire 3620 Service Guide - Page 83
start (optional) Shadow video BIOS ROM Display BIOS copyright notice Display CPU type and speed Initialize EISA board Test keyboard Set key click if enabled Test for unexpected interrupts Initialize POST display service Display prompt "Press F2 to enter SETUP" Disable CPU cache Test RAM between 512 - Acer Aspire 3620 | TravelMate 2420 / Aspire 3620 Service Guide - Page 84
screen (optional) Check virus and backup reminders Try to boot with INT 19 Initialize POST Error Manager (PEM) Initialize error logging Initialize error display function Initialize system error handler PnPnd dual CMOS (optional) Initialize notebook docking (optional) Initialize notebook docking - Acer Aspire 3620 | TravelMate 2420 / Aspire 3620 Service Guide - Page 85
force recovery boot Checksum BIOS ROM Go to BIOS Set Huge Segment Initialize Multi Processor Initialize OEM special code Initialize PIC and DMA Initialize Memory type Initialize Memory size Shadow Boot Block System memory test Initialize interrupt vectors Initialize Run Time Clock Initialize video - Acer Aspire 3620 | TravelMate 2420 / Aspire 3620 Service Guide - Page 86
" on page 67. Battery pack Power adapter Hard drive & battery connection board System board Power source (battery pack and power adapter). See "Power System Check" on page 67. Battery pack Power adapter Hard drive & battery connection board System board Power source (battery pack and power adapter - Acer Aspire 3620 | TravelMate 2420 / Aspire 3620 Service Guide - Page 87
if the computer enters hibernation mode. Touchpad Keyboard Hard disk connection board Hard disk drive System board See "Save to Disk (S4)" on page 36. LCD cover switch System board See "Save to Disk (S4)" on page 36. Hard disk connection board Hard disk drive System board See "Save to Disk (S4)" on - Acer Aspire 3620 | TravelMate 2420 / Aspire 3620 Service Guide - Page 88
does not work correctly. USB does not work correctly Print problems. Serial or parallel port device problems. Action in Sequence Enter BIOS Setup Utility to execute "Load Default Settings", then reboot system. Reconnect hard disk/CD-ROM/diskette drives. Press Fn+F5, LCD/CRT/Both display switching - Acer Aspire 3620 | TravelMate 2420 / Aspire 3620 Service Guide - Page 89
defect, such as: cosmic radiation, electrostatic discharge, or software errors. FRU replacement should be considered only when a recurring problem exists. When analyzing an intermittent problem, do the following: 1. Run the advanced diagnostic test for the system board in loop mode at least 10 times - Acer Aspire 3620 | TravelMate 2420 / Aspire 3620 Service Guide - Page 90
Verify that all attached devices are supported by the computer. NOTE: Verify Acer devices T Printer, mouse, and other external devices T Battery pack T Hard disk drive T DIMM T CD-ROM/Diskette drive Module T PC Cards 4. Power-on the computer. 5. Determine if the problem has changed. 6. If the problem - Acer Aspire 3620 | TravelMate 2420 / Aspire 3620 Service Guide - Page 91
Connector Touchpad Cable Connector 7 BLUE1 8 U39 9 RTC1 10 U40 5 LCD1 LCD Cable Connector 11 SPKR1 6 LAUNCH1 Launch Board Cable Connector Bluetooth Cable Connector LAN Connector: RTL8100CL RTC Battery Connector Keyboard Controller: ENE CB1410QF Speaker Set Cable Connector Chapter 5 83 - Acer Aspire 3620 | TravelMate 2420 / Aspire 3620 Service Guide - Page 92
U41 CPU Socket 9 U38 North Bridge () 10 FAN1 System Fan Cable Connector 11 BAT1 Battery Connector 12 U South Bridge () 13 ODD1 ODD Connector 14 WIN1 Wireless LAN Card Slotr 15 DM1 DIMM Slot1 16 DM3 DIMM Slot2 17 U44 Keyboard Controller (ENE KB3910SF) 18 U49 BIOS ROM 19 U32 Audio Codec - Acer Aspire 3620 | TravelMate 2420 / Aspire 3620 Service Guide - Page 93
) listing in global configurations of Aspire 3620/TravelMate 2420. Refer to this chapter whenever ordering for parts to repair or for RMA ( part number change is made, it will not be noted on the printed Service Guide. For ACER AUTHORIZED SERVICE PROVIDERS, your Acer office may have a DIFFERENT part - Acer Aspire 3620 | TravelMate 2420 / Aspire 3620 Service Guide - Page 94
2420 Exploded Diagram Aspire 3620/TravelMate 2420 FRU List Category Adapter No. Part Name and Description ADAPTER 65W DELTA SADP-65KB DBE ADAPTER 65W LITEON PA-165002WR ADAPTER 65W LISHIN SLS0335A19A54LF Acer Part No. AP.06501.007 AP.06503.011 AP.06506.003 Battery Boards BATTERY PACK LI - Acer Aspire 3620 | TravelMate 2420 / Aspire 3620 Service Guide - Page 95
does not contain the black mylar as the image shows.. Acer Part No. 54.TB2V1.001 MODEM CABLE 50.TB2V1.005 LED CABLE 50.TB2V1.003 TOUCHPAD CABLE LAUNCH BOARD CABLE 50.TB2V1.001 50.TB2V1.002 Chapter 6 BLUETOOTH CABLE 50.TB2V1.004 POWER CORD 2.5A 125V USA POWER CORD 10A 250V 3PIN - Acer Aspire 3620 | TravelMate 2420 / Aspire 3620 Service Guide - Page 96
Category Case/Cover/Bracket/Assembly No. Part Name and Description Acer Part No. POWER CORD 2.5A 250V SOUTH AFRICA BK 27.01518.631 POWER CODE 7A 125V JAPAN 2PIN 27.03518.161 LOWERCASE W/SPEAKER 60.TB2V1.001 - Acer Aspire 3620 | TravelMate 2420 / Aspire 3620 Service Guide - Page 97
Name and Description TOUCHPAD BRACKET Acer Part No. 33.TB2V1.001 Combo Module UPPER CASE 60.AA6V1.002 UPPER CASE (TM) COMBO MODULE 24X 60.TB2V1.002 6M.TB2V1.001 CPU/Processor OPTICAL FIX HOLDER BRACKET 33.TB2V1.002 OPTICAL RAIL HOLDER OPTICAL BEZEL GBASE FOR COMBO COMBO MODULE 24X HLDS - Acer Aspire 3620 | TravelMate 2420 / Aspire 3620 Service Guide - Page 98
DVD Module No. Part Name and Description Acer Part No. CPU DOTHAN740 1.73GMHZ INTEL KC.N0001.740 CPU DOTHAN725A 1.6GMHZ INTEL KC.NA001.725 CPU CEL-M370 1.5G MHZ INTEL KC.NC001.370 CPU CEL-M380 1.6GMHZ INTEL KC.NV001.380 CPU CEL-M390 1.7GMHZ INTEL KC.NV001.390 CPU CEL-M360 1.4GMHZ - Acer Aspire 3620 | TravelMate 2420 / Aspire 3620 Service Guide - Page 99
Name and Description ASSY HDD BRACKET AG1 Acer Part No. 33.TB2V1.004 Heatsink Chapter 6 HDD 40GB SEAGATE ST9402112A HDD 40GB TOSHIBA MK4025GAS HDD 40GB HGST HTS421240H9AT00 HDD 40GB WD WD400UE-22HCT0 HDD 40GB - Acer Aspire 3620 | TravelMate 2420 / Aspire 3620 Service Guide - Page 100
Category No. Part Name and Description Acer Part No. CPU HEATSINK W/SCREW W/O FAN 34.TB2V1.001 Keyboard 92 KEYBOARD 89KEY DARFON NSKH3M00 SWISS KB.A2707.011 KEYBOARD 88KEY DARFON NSKH30M02 TAIWAN(CHINESE) KEYBOARD 88KEY DARFON NSKH3M03 THAI KEYBOARD - Acer Aspire 3620 | TravelMate 2420 / Aspire 3620 Service Guide - Page 101
Name and Description KEYBOARD 89KEY DARFON NSKH3M1A BELGIUM KEYBOARD 89KEY DARFON NSKH3M1B BR KEYBOARD 88KEY DARFON NSKH3M1D US-INTERNATIONAL Acer Part No. KB.A2707.014 KB.A2707.005 KB.A2707.001 KEYBOARD 89KEY DARFON NSKAEK00 SWISS KEYBOARD 88KEY DARFON NSKAEK02 TAIWAN(CHINESE) KEYBOARD 88KEY - Acer Aspire 3620 | TravelMate 2420 / Aspire 3620 Service Guide - Page 102
KEYBOARD 89KEY DARFON NSKAEK1F SV Acer Part No. KB.T5007.026 LCD MODULE 14.1" WXGA W/ ANTENNA NONE GLARE INVERTER BOARD 15.4" FOXCONN T62I240.00 6M.TB2V1.011 19.A46V1.003 WIRELESS ANTENNA LEFT/RIGHT 25.TB2V1.001 LCD/INVERTER CABLE 14.1" WXGA 50.TB2V1.006 LCD BRACKET RIGHT Note: Right bracket - Acer Aspire 3620 | TravelMate 2420 / Aspire 3620 Service Guide - Page 103
.00 WIRELESS ANTENNA LEFT/RIGHT LCD/INVERTER CABLE 14.1" WXGA LCD BRACKET RIGHT LCD BRACKET LEFT LCD PANEL 14.1" W/HINGE LCD BEZEL 14.1" W/LOGO HINGE PACK LEFT/RIGHT LCD 14.1" WXGA CMO N141I1-L03 GLARE LCD 14.1" WXGA QDI QD14TL01-02 GLARE 420G LCD 14.1" WXGA AU B141EW01 V.0 GLARE TYPE LCD 14.1" WXGA - Acer Aspire 3620 | TravelMate 2420 / Aspire 3620 Service Guide - Page 104
Category No. Part Name and Description RTC BATTERY Acer Part No. 23.TB2V1.004 PCMCIA Slot/PC Card Slot Memory Miscellaneous PCMCIA SLOY 021 KN.51203.023 KN.51204.019 KN.5120B.015 KN.5120G.005 47.A46V1.002 LCD SCREW RUBBER 47.TB1V1.001 Screws 96 NAME PLATE NAME PLlATE (TM) 40.AA6V1.001 - Acer Aspire 3620 | TravelMate 2420 / Aspire 3620 Service Guide - Page 105
Category Microphone No. Part Name and Description Acer Part No. SCRW M2*L3 BLACK 86.00C31.220 SCRW M2 X 2 86.00C34.620 SCR M2.5*12L B-ZN NYLOK I-HEAD 86.5A353.120 SCRW WH MS+ - Acer Aspire 3620 | TravelMate 2420 / Aspire 3620 Service Guide - Page 106
98 Chapter 6 - Acer Aspire 3620 | TravelMate 2420 / Aspire 3620 Service Guide - Page 107
29 CardBus 33 D DIMM external 54, 58 removing 54, 58 Disassembly Battery Pack 52 LCD Module 62 Procedure Flowchart 51 Disassemblyt the Main Unit 60 Display 3 DVD-ROM Interface 32 E Error Symptom-to-Spare Part Index 70 External CD-ROM Drive Check 66 F Index Features 1 Flash Utility 48 Floppy Disk - Acer Aspire 3620 | TravelMate 2420 / Aspire 3620 Service Guide - Page 108
S Second Level Cache 29 System Block Diagram 3 System Check Procedures 66 System Memory 29 System Utilities 37 T Top 83 Touchpad Check 69 Troubleshooting 65 U Undetermined Problems 82 USB 33 utility BIOS 37 V Video 33 Index 100