Acer Travelmate 510 Service Guide

Chapter 4 83
3.  If the voltage is still less than 8.0 Vdc after recharging, replace the battery. 
To check the battery charge operation, use a discharged battery pack or a 
battery pack that has less than 50% of the total power remaining when 
installed in the computer. 
If the battery status indicator does not light up, remove the battery pack and 
let it return to room temperature. Reinstall the battery pack.
If the charge indicator still does not light up, replace the battery pack. If the 
charge...

84 Troubleshooting 
Error Symptom-to-FRU Index
The symptom-to-FRU index lists the symptoms and errors and their possible 
causes. The most likely cause is listed first.
Note: 
 Perform the FRU replacement or actions in the sequence shown 
in FRU/Action column, if the FRU replacement does not solve the 
problem, put the original part back in the computer. Do not replace 
a non-defective FRU.
This index can also help you determine the next possible FRU to be replaced 
when servicing a computer.
If the...

Chapter 4 85
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...

86 Troubleshooting 
Device Address Conflict Run “Load Default Settings” in BIOS Setup Utility.
RTC battery
System board
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...

Chapter 4 87
No beep, power-on 
indicator turns on and LCD 
is blank.Power source (battery pack and power adapter). 
Power System Check. 
Reconnect the LCD connectors
DC-DC/charger board
CPU board. 
Hard disk drive
LCD inverter ID
LCD FPC cable
Inverter
LCD
System board
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 FPC cable 
LCD inverter
LCD
System board
No beep, power-on 
indicator turns on and a...

88 Troubleshooting 
Unreadable LCD screen 
Missing pels in characters
Abnormal screen 
Wrong color displayedReconnect the LCD connectors.
LCD inverter ID
LCD FPC Cable
LCD inverter
LCD
System board
LCD has extra horizontal or 
vertical lines displayed.LCD inverter ID
LCD inverter
LCD FPC Cable
LCD
System board
Indicator-Related Symptoms
Symptom / ErrorAction in Sequence
Indicator incorrectly remains 
off or on, but system runs 
correctly.Reconnect the LED board
LED board
System board
Power-Related...

Chapter 4 89
The system doesn’t power-
off.Power source (battery pack and power adapter). 
Power System Check
Hold and press the power switch for more than 4 
seconds.  
Charger board
System board
Battery can’t be charged. Power System Check 
Battery pack
DC-DC/charger board
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 
damagedPCMCIA slot assembly
Memory-Related Symptoms
Symptom /...

90 Troubleshooting 
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
Check with Sleep Manager.
The system doesnt enter 
hibernation mode and four 
short beeps every minute.Hibernation Mode
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...

Chapter 4 91
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
Running PQA Diagnostics Program. 
System board
USB does not work 
correctly.System Diagnostics Diskette.
System board
Print problems Ensure the “Parallel Port”...

92 Troubleshooting 
Note: If you cannot find a symptom or an error in this list and the 
problem remains.
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...