Acer Travelmate 4070 Service Guide

							Chapter 486
PCMCIA-Related Symptoms
Symptom / ErrorAction in Sequence
System cannot detect the PC Card (PCMCIA)  PCMCIA slot assembly
System board
PCMCIA slot pin is damaged. PCMCIA slot assembly
Memory-Related Symptoms
Symptom / ErrorAction in Sequence
Memory count (size) appears different from 
actual size.Enter BIOS Setup Utility to execute “Load Default Settings, then 
reboot system.
DIMM
System board
Speaker-Related Symptoms
Symptom / ErrorAction in Sequence
In Windows, multimedia programs, no sound 
comes from the computer. Audio driver
Speaker
System board
Internal speakers make noise or emit no sound. Speaker
System board
Power Management-Related Symptoms
Symptom / ErrorAction in Sequence
The system will not enter hibernation Keyboard (if control is from the keyboard)
Hard disk drive
System board
The system doesnt enter hibernation mode and 
four short beeps every minute.See “S4 Sleeping State” on page 36.
Press Fn+
oand see if the computer enters hibernation mode.
Touchpad
Keyboard
Hard disk connection board
Hard disk drive
System board
The system doesn’t enter standby mode after 
closing the LCDSee “S4 Sleeping State” on page 36.
LCD cover switch
System board
The system doesnt resume from hibernation 
mode.See “S4 Sleeping State” on page 36.
Hard disk connection board
Hard disk drive
System board
The system doesnt resume from standby mode 
after opening the LCD.See “S4 Sleeping State” on page 36.
LCD cover switch
System board
Battery fuel gauge in Windows doesn’t go higher 
than 90%. Remove battery pack and let it cool for 2 hours.
Refresh battery (continue use battery until power off, then charge 
battery).
Battery pack
System board 
						

							87Chapter 4
NOTE: If you cannot find a symptom or an error in this list and the problem remains, see “Undetermined 
Problems” on page 89.
System hangs intermittently. Reconnect hard disk/CD-ROM drives. 
Hard disk connection board
System board
Peripheral-Related Symptoms
Symptom / ErrorAction in Sequence
System configuration does not match the 
installed devices. Enter BIOS Setup Utility to execute “Load Default Settings”, then 
reboot system.
Reconnect hard disk/CD-ROM/diskette drives.
External display does not work correctly. Press Fn+F5, LCD/CRT/Both display switching
System board
USB does not work correctly System board
Print problems. Ensure the “Parallel Port” in the “Onboard Devices Configuration” of 
BIOS Setup Utility is set to Enabled.
Onboard Devices Configuration
Run printer self-test.
Printer driver
Printer cable
Printer
System Board
Serial or parallel port device problems. Ensure the “Serial Port” in the Devices Configuration” of BIOS Setup 
Utility is set to Enabled.
Device driver
Device cable
Device
System board
Keyboard/Touchpad-Related Symptoms
Symptom / ErrorAction in Sequence
Keyboard (one or more keys) does not work. Reconnect the keyboard cable.
Keyboard
System board
Touchpad does not work. Reconnect touchpad cable.
Touchpad board
System board
Modem-Related Symptoms
Symptom / ErrorAction in Sequence
Internal modem does not work correctly. Modem phone port
modem combo board
System board
Power Management-Related Symptoms
Symptom / ErrorAction in Sequence 
						

							Chapter 488
Intermittent Problems
Intermittent system hang problems can be caused by a variety of reasons that have nothing to do with a 
hardware 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.
2.If no error is detected, do not replace any FRU.
3.If any error is detected, replace the FRU. Rerun the test to verify that there are no more errors.  
						

							89Chapter 4
Undetermined Problems
The diagnostic problems does not identify which adapter or device failed, which installed devices are incorrect, 
whether a short circuit is suspected, or whether the system is inoperative.  
Follow these procedures to isolate the failing FRU (do not isolate non-defective FRU).
NOTE: Verify that all attached devices are supported by the computer.
NOTE: Verify that the power supply being used at the time of the failure is operating correctly. (See “Power 
System Check” on page 74):
1.Power-off the computer.
2.Visually check them for damage. If any problems are found, replace the FRU.
3.Remove or disconnect all of the following devices:
TNon-Acer devices
TPrinter, mouse, and other external devices
TBattery pack
THard disk drive
TDIMM 
TCD-ROM/Diskette drive Module
TPC Cards
4.Power-on the computer.
5.Determine if the problem has changed.
6.If the problem does not recur, reconnect the removed devices one at a time until you find the failing FRU.
7.If the problem remains, replace the following FRU one at a time. Do not replace a non-defective FRU:
TSystem board
TLCD assembly 
						

							Chapter 590
To p  V i e w
Jumper and Connector Locations
Chapter 5 
						

							91Chapter 5
Bottom View
   
1 SW1 Lid Switch 2 CN1 LCD Connector
3 CN2 Launch Board Connector 4 CN3 Modem Connector
5 CN7 Keyboard Connector 6 CN4 Bluetooth Module Connector
7 CN5 Touchpad Board Connector 8 CN6 Internal Microphone Connector
9 U17 Clock Generator 10 U4 PCMCIA Connector
11 CN9 MDC Connector 12 CN11 Internal Speaker Connector
13 CN13 Power Jack 14 CN12 CRT Connector
15 CN14 Battery Connector 16 CN15 Optical Disk Drive Connector
17 CN17 RJ45 & RJ11 Connector 18 CN26 Wireless LAN Controller
19 U11 North Bridge 20 U13 CPU Socket
21 CN20 USB Connector 22 CN21 USB Connector
23 U19 BIOS ROM 24 U4 EC PC97551 (Power and I/O 
Connector)
25 CN22 RTC Battery 26 CN18 Memory Socket 1
27 U1 LAN Chipset RTL8100CL 28 CN19 Memory Socket 2 
						

							Chapter 592
29 U18 South Bridge 30 CN24 PCMCIA Connector
31 CN25 HDD Connector 32 CN27 USB Connector
33 CN28 Line-out/SPEDIF Jack 34 CN29 Microphone Jack
35 CN30 Line-in Jack 36 SW3 WLAN Button
37 SW2 Bluetooth Button 38 LED2 Charger LED
39 LED1 Power LED 40 U22 Audio Codec
41 U10 Fan Connector 
						

							93Chapter 5 
						

							Chapter 694
This chapter gives you the FRU (Field Replaceable Unit) listing in global configurations of TravelMate 4070/
4080. Refer to this chapter whenever ordering for parts to repair or for RMA (Return Merchandise 
Authorization).
Please note that WHEN ORDERING FRU PARTS, you should check the most up-to-date information available 
on your regional web or channel. For whatever reasons a 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 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 customer 
machines.
NOTE: To scrap or to return the defective parts, you should follow the local government ordinance or 
regulations on how to dispose it properly, or follow the rules set by your regional Acer office on how to 
return it.
FRU (Field Replaceable Unit) List
Chapter 6 
						

							95Chapter 6
TravelMate 4070/4080 Exploded Diagram
TravelMate 4070/4080 FRU List
Adapter
NS ADP 19V 3.42A PA-1650-02QR 
90~264V LFAP.06503.010
NS ADP 19V 3.42A SLS0335A19A57LF 
90~264V EUAP.06506.002
NSADP 19V 3.42A SADP-65KB DBHF 
90~264V LFAP.06501.009
Battery