Acer Travelmate 270 Service Guide

							76Chapter 4
still occurs, continue next step.
Replace the CPU with another of the same specifications. If the problems still occurs, go to next 
step.
The main board may be damaged. Replace main board.
3.If the external monitor has the same problem as the internal monitor,  the main board may be damaged. 
Please insert the diagnostic disk and run the display test program and go through the sub-steps under 
step 2.
Sound Check
To determine if the computer’s built-in speakers are functioning properly, perform the following steps. Before 
you start the steps below, adjust the speaker volume to an appropriate level. 
1.Try different audio sources. For example, employ audio CD and ditital music file to determine whether the 
fault is in the speaker system or not. If not all sources have sound problem, the problem is in the source 
devices. If all have the same problem, continue next step.
2.Connect a set of earphone or external speakers. If these devices work fine, go to next step. If not, then the 
main board may be defective or damaged. Replace the main board.
3.Follow the disassembling steps in Chapter 3. Esure the speaker cable is firmly connected to the main 
board. If the speaker is still a malfunction, go on next step.
4.If the speakers do not sound properly, the speakers may be defective or damaged. Replace the speakers. 
If the problem still occurs, then replace the main board. 
						

							Chapter 477
Power-On Self-Test (POST) Error Message
The POST error message index lists the error message 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 symptom is not listed, see “Undetermined Problems” on page 84.
The following lists the error messages that the BIOS displays on the screen and the error symptoms classified 
by function. 
NOTE: Most of the error messages occur during POST. Some of them display information about a hardware 
device, e.g., the amount of memory installed. Others may indicate a problem with a device, such as the 
way it has been configured.
NOTE: If the system fails after you make changes in the BIOS Setup Utility menus, reset the computer, enter 
Setup and install Setup defaults or correct the error.  
						

							78Chapter 4
Index of Error Messages 
Error Message List
Error MessagesFRU/Action in Sequence
0200 Failure Fixed Disk Hard disk error detected.
Check to see if fixed disk is attached properly.
Enter the BIOS Setup Utility and verify the hard disk is detected.
0211 Keyboard error see “Keyboard or Auxiliary Input Device Check” on page 73. 
0212 Keyboard Controller Failed see “Keyboard or Auxiliary Input Device Check” on page 73. 
May require replacing the keyboard controller.
0213Keyboard locked - Unlock key switch Unlock the system to proceed.
0220 Monitor type does not match CMOS - Run 
SETUPDisplay device mismatch.
Enter the BIOS Setup Utility and verify the parameters (try loading 
the default settings); then save and restart the computer.
0230 System RAM Failed at offset: nnnn Shadow RAM test failed
Main board
0231 Shadow RAM Failed at offset: nnnn System RAM test failed
Main board
0232 Extended RAM Failed at address line: nnnn Extended RAM test failed
Main board
0250 System battery is dead - Replace and run 
SETUPCMOS clock battery needs to be replaced. Replace the battery and 
run BIOS Setup Utility to reconfigure system time, then reboot 
system.
0251 System CMOS checksum bad - Default 
configuration usedCMOS has been corrupted or modified incorrectly.
Run BIOS Setup Utility and verify the parameters; then save and 
restart the computer.
Check the system battery.
0260 System timer error System timer test fiailed, and the main board needs to be repaired.
Run BIOS Setup Utility to reconfigure system time, then reboot 
system.
Main board
0270 Real time clock error RTC battery
Run BIOS Setup Utility to reconfigure system time, then reboot 
system.
Main board
0280 Previous boot incomplete - Default 
configuration usedPrevious boot-up was not copleted successfully.
Enter the BIOS Setup Utility and verify the parameters (try loading 
the default settings); then save and restart the computer.
RTC battery
Main board
0281 Memory size found by POST differed from 
EISA CMOSRun “Load Setup Defaults” in BIOS Setup Utility.
Main board
02B0 Diskette drive A error Drive A: or B: is present but fails the BIOS POST diskette tests.
Check the drive is defined with the proper diskette type in BIOS 
Setup Utility
Check if the diskette drive is attached correctly.
See “External Diskette Drive Check” on page 72. 
02B2 Incorrect Drive A type - run SETUP Type of floppy drive A: not correctly identified in Setup.
Main board
02D0 System cache error - Cache disabled RAM cache failed and BIOS disabled the cache. 
On older boards, check the cache jummpers. You may have to 
replace the cache.
Main board 
						

							Chapter 479
02F0 CPU ID CPU socket number for Multi-Processor error.
Main board
02F4 EISA CMOS not writeable System unable to write to EISA CMOS.
Main board
02F5 DMA Test Failed System unable to write to DMA (Direct Memory Access) registers.
Main board
02F6 Software NMI Failed System unable to generate software NMI (Non-Maskable Interrupt).
Main board
02F7 Fail-Safe Timer NMI Failed Fail-Safe Timer takes too long.
Main board
Invalid System Configuration Data Error with NVRAM (CMOS) data.
Enter the BIOS Setup Utility and verify the parameters (try loading 
the default settings); then save and restart your computer.
Main board
Operating system not found Operating system cannot be found on the boot device.
Enter the BIOS Setup Utility and verify the parameters (try loading 
the default settings); then save and restart the computer.
Recover hard disk.
Reinstall the operating system.
Parity Check 1 nnnnParity error found on system bus. BIOS attempts to locate the 
address and display it on the screen. If it cannot locate the address, 
it displays.
Parity Check 2 nnnnParity error found on I/O bus. BIOS attempts to locate the address 
and display it on the screen. If it cannot locate the address, it 
displays .
Error Message List
Error MessagesFRU/Action in Sequence 
						

							80Chapter 4
Index of Symptom-to-FRU Error Message
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 Defaults” on Exit screen, 
then reboot system.
Reconnect the LCD connectors.
Keyboard (if contrast and brightness function key doesnt work).
LCD cable
LCD inverter
LCD
Main board
Unreadable LCD screen 
Missing pels in characters
Abnormal screen 
Wrong color displayedReconnect the LCD connector
LCD cable
LCD inverter
LCD
Main board
LCD has extra horizontal or vertical lines 
displayed.LCD inverter
LCD cable
LCD
Main board
Indicator-Related Symptoms
Symptom / ErrorAction in Sequence
Indicator incorrectly remains off or on, but system 
runs correctlyReconnect the inverter board
Inverter board
Main board
Power-Related Symptoms
Symptom / ErrorAction in Sequence
Power shuts down during operation Power source (battery pack and power adapter). See “Power 
System Check” on page 73. 
Battery pack
Power adapter
Hard drive & battery connection board
Main board
The system doesn’t power-on. Power source (battery pack and power adapter). See “Power 
System Check” on page 73“.
Battery pack
Power adapter
Hard drive & battery connection board
Main board
The system doesn’t power-off. Power source (battery pack and power adapter). See “Power 
System Check” on page 73. 
Hold and press the power switch for more than 4 seconds.  
Main board
Battery can’t be charged See “Check the Power Adapter” on page 74. 
Battery pack
Main board 
						

							Chapter 481
PCMCIA-Related Symptoms
Symptom / ErrorAction in Sequence
System cannot detect the PC Card (PCMCIA)  See “System Diagnostic Diskette” on page 49. Please run Sycard 32 
Bit test.
PCMCIA slot assembly
Main board
PCMCIA slot pin is damaged. PCMCIA slot assembly
Memory-Related Symptoms
Symptom / ErrorAction in Sequence
Memory count (size) appears different from 
actual size.DIMM
Main board
Speaker-Related Symptoms
Symptom / ErrorAction in Sequence
In Windows, multimedia programs, no sound 
comes from the computer. See “Sound Check” on page 76
Audio driver
Speaker
Main board
Internal speakers make noise or emit no sound. See “Sound Check” on page 76
Speaker
Main 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
Main board
The system doesnt enter hibernation mode and 
four short beeps every minute.Press Fn+F4 and see if the computer enters hibernation mode.
Touchpad
Keyboard
Hard disk connection board
Hard disk drive
Main board
The system doesn’t enter standby mode after 
closing the LCDLCD cover switch
Main board
The system doesnt resume from hibernation 
mode.Hard disk connection board
Hard disk drive
Main board
The system doesnt resume from standby mode 
after opening the LCD.LCD cover switch
Main 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
Main board
System hangs intermittently. Reconnect hard disk drives. 
Hard disk drive connector
Main board 
						

							82Chapter 4
NOTE: If you cannot find a symptom or an error in this list and the problem remains, see “Undetermined 
Problems” on page 84. Peripheral-Related Symptoms
Symptom / ErrorAction in Sequence
System configuration does not match the 
installed devices. Enter BIOS Setup Utility to execute “Load Setup defaults”, then 
reboot system.
Reconnect hard disk/CD-ROM/diskette drives.
External display does not work correctly. See “System Diagnostic Diskette” on page 49
See if there is an error beep. If there is an erro beep, then change 
main board.
Power off. Then check if RAM CPU BIOS are well-connected.
Press Fn+F5 three times slowly
LCD FPC
LCD inverter
LCD
USB does not work correctly USB device cable is firmly connected into the USB ports. Test one 
USB port each time.
USB socket is firmly secured to the main board.
Main board
Print problems. Ensure the “Parallel Port” in the “System Devices” of BIOS Setup 
Utility is set to Enabled.
Onboard Devices Configuration
Run parallel port test
Printer driver
Printer cable
Printer
Main board
Keyboard/Touchpad-Related Symptoms
Symptom / ErrorAction in Sequence
Keyboard (one or more keys) does not work. Reconnect the keyboard cable.
Keyboard
Main board
Touchpad does not work. Reconnect touch pad cable. Modem port is secured to the main 
board
Touch pad FPC
Audio/Touch pad board
Main board
Modem-Related Symptoms
Symptom / ErrorAction in Sequence
Internal modem does not work correctly. Ensure the telephone cable is firmly plugged into the telephone wall 
socket and the modem port of the computer.
Modem phone port is secured to the main board.
modem combo board
Main board 
						

							Chapter 483
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 diagnostic test for several times to isolate the problem.
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.
If an error is detected by the main battery test, see “Check the Power Adapter” on page 74
If an error is detected by the display test, see “Index of Symptom-to-FRU Error Message” on page 
80 .
If an error is detected by the floppy disk drive test, see “External Diskette Drive Check” on page 72.
If an error is detected by the keyboard test, see “Keyboard or Auxiliary Input Device Check” on 
page 73. 
						

							84Chapter 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 71):
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:
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:
Main board
LCD assembly 
						

							Chapter 485
Index of AFlash BIOS Error Message
Error MessageAction in Sequence
Hardware Error  See “System Diagnostic Diskette” on page 49
VPD Checksum Error Reboot the system and then restest with this diskette.
BIOS Update Program Error Turn off the power and restart the system.
System Error Make sure this AFlash BIOS diskette for this model.
Without AC adapter make sure to connect AC adapter
Battery Low make sure to install a highly charged battery, and reboot 
system.