Acer Travelmate 330 Service Guide

							Chapter 4 91
Extended RAM Failed at 
offset: nnnnDIMM
System board
System battery is dead - 
Replace and run SetupReplace RTC battery and Run BIOS Setup Utility 
to reconfigure system time, then reboot system.
System CMOS checksum 
bad - Default configuration 
usedRTC battery
Run BIOS Setup Utility to reconfigure system 
time, then reboot system.
System timer error RTC battery
Run BIOS Setup Utility to reconfigure system 
time, then reboot system.
System board
Real time clock error RTC battery
Run BIOS Setup Utility to reconfigure system 
time, then reboot system.
System board
Previous boot incomplete - 
Default configuration usedRun “Load Default Settings” in BIOS Setup Utility.
RTC battery
System board
Memory size found by 
POST differed from CMOSRun “Load Default Settings” in BIOS Setup Utility.
DIMM
System board
Diskette drive A error Check the drive is defined with the proper diskette 
type in BIOS Setup Utility
See “External Diskette Drive Check” on page 86. 
Incorrect Drive A type - run 
SETUPCheck the drive is defined with the proper diskette 
type in BIOS Setup Utility
See “External Diskette Drive Check” on page 86. 
System cache error - Cache 
disabledSystem board
CPU ID: System board
DMA Test Failed DIMM
System board
Software NMI Failed DIMM
System board
Fail-Safe Timer NMI Failed DIMM
System board
Device Address Conflict Run “Load Default Settings” in BIOS Setup Utility.
RTC battery
System board
Error Messages List
Error MessagesAction in Sequence 
						

							92 Troubleshooting 
Allocation Error for: device Run “Load Default Settings” in BIOS Setup Utility.
RTC battery
System board
Failing Bits: nnnn DIMM
BIOS ROM
System board
Fixed Disk n None
Invalid System 
Configuration DataBIOS ROM
System board
I/O device IRQ conflict Run “Load Default Settings” in BIOS Setup Utility.
RTC battery
System board
Operating system not found Enter Setup and see if fixed disk and drive A: are 
properly identified.
Diskette drive
Hard disk drive
System board
No-Beep Symptoms
Symptom / ErrorAction in Sequence
No beep, power-on 
indicator turns off and LCD 
is blank.Power source (battery pack and power adapter). 
See “Power System Check” on page 88. 
Ensure every connector 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 88. 
Reconnect the LCD connector
Hard disk drive
LCD inverter ID
LCD cable
LCD Inverter
LCD
System board
Error Messages List
Error MessagesAction in Sequence 
						

							Chapter 4 93
No beep, power-on 
indicator turns on and LCD 
is blank.  But you can see 
POST on an external CRT. Reconnect the LCD connectors.
LCD inverter ID
LCD  cable 
LCD inverter
LCD
System board
No beep, power-on 
indicator turns on and a 
blinking cursor shown on 
LCD during POST.Ensure every connector is connected tightly and 
correctly.
System board
No beep during POST but 
system runs correctly.Speaker
System board
LCD-Related Symptoms
Symptom / ErrorAction in Sequence
LCD backlight doesnt work
LCD is too dark
LCD brightness cannot be 
adjusted
LCD contrast cannot be 
adjustedEnter BIOS Utility to execute “Load Setup Default 
Settings”, then reboot system.
Reconnect the LCD connectors.
Keyboard (if contrast and brightness function key 
doesnt work).
LCD inverter ID
LCD cable
LCD inverter
LCD
System board
Unreadable LCD screen 
Missing pels in characters
Abnormal screen 
Wrong color displayedReconnect the LCD connector
LCD inverter ID
LCD cable
LCD inverter
LCD
System board
LCD has extra horizontal or 
vertical lines displayed.LCD inverter ID
LCD inverter
LCD cable
LCD
System board
No-Beep Symptoms
Symptom / ErrorAction in Sequence 
						

							94 Troubleshooting 
Indicator-Related Symptoms
Symptom / ErrorAction in Sequence
Indicator incorrectly remains 
off or on, but system runs 
correctlyReconnect the inverter board
Inverter board
System board
Power-Related Symptoms
Symptom / ErrorAction in Sequence
Power shuts down during 
operationPower source (battery pack and power adapter). 
See “Power System Check” on page 88. 
Battery pack
Power adapter
Hard drive & battery connection board
System board
The system doesn’t power-
on.Power source (battery pack and power adapter). 
See “Power System Check” on page 88. 
Battery pack
Power adapter
Hard drive & battery connection board
System board
The system doesn’t power-
off.Power source (battery pack and power adapter). 
See “Power System Check” on page 88. 
Hold and press the power switch for more than 4 
seconds.  
System board
Battery can’t be charged See “Check the Battery Pack” on page 88. 
Battery pack
System board
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 
						

							Chapter 4 95
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 
						

							96 Troubleshooting 
Power Management-Related Symptoms
Symptom / ErrorAction in Sequence
The system will not enter 
hibernationKeyboard (if control is from the keyboard)
Hard disk drive
System board
The system doesnt enter 
hibernation mode and four 
short beeps every minute.See “Hibernation Mode” on page 39.
Press Fn+F4 and 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 “Standby Mode” on page 39.
LCD cover switch
System board
The system doesnt resume 
from hibernation mode.See “Hibernation Mode” on page 39.
Hard disk connection board
Hard disk drive
System board
The system doesnt resume 
from standby mode after 
opening the LCD.See “Standby Mode” on page 39.
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
System hangs intermittently. See “Set Thermal Sensor Threshold” on page 58. 
Reconnect hard disk/CD-ROM drives. 
Hard disk connection board
System board 
						

							Chapter 4 97
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
See “Running PQA Diagnostics Program.” on 
page 60. 
System board
USB does not work 
correctlySee “System Diagnostic Diskette” on page 59
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 
						

							98 Troubleshooting 
Note: If you cannot find a symptom or an error in this list and the 
problem remains, see “Undetermined Problems” on page 56.
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. 
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 88):
1.  Power-off the computer.
2.  Visually check them for damage. If any problems are found, replace the 
FRU . Modem-Related Symptoms
Symptom / ErrorAction in Sequence
Internal modem does not 
work correctly.See “System Diagnostic Diskette” on page 59.
Modem phone jack
Modem board
System board 
						

							Chapter 4 99
3.  Remove or disconnect all of the following devices:

Non-Acer devices

Printer, mouse, and other external devices

Battery pack

Hard disk drive

DIMM 

CD-ROM/Diskette drive Module

PC 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:

System board

LCD assembly 
						

							100 Troubleshooting