Acer Travelmate 800 Service Guide

							Chapter 463
Use the following procedure as a guide for computer problems.
NOTE: The diagnostic tests are intended to test this model (TravelMate 800 series).  Non-Acer products, 
prototype cards, or modified options can give false errors and invalid system responses.
1.Obtain the failed symptoms in as much detail as possible.
2.Verify the symptoms by attempting to re-create the failure by running the diagnostic test or by repeating 
the same operation.
3.If any problem occurs, you can perform visual inspection before you fellow this chapter’s instructions. You 
can check the following:
power cords are properly connected and secured;
there are no obvious shorts or opens;
there are no obviously burned or heated components;
all components appear normal.
4.After you perform visual inspection you can also verify the following:
ask the user if a password is registered and, if it is, ask him or her to enter the password.
verify with the customer that Wndows XP is installed on the hard disk. Operating systems that 
were not preinstalled by Acer can cause malfunction.
make sure all optional equipment is removed from the computer.
make sure the floppy disk is empty.
5.Use the following table with the verified symptom to determine which page to go to.
Symptoms (Verified)Go To
Power failure. (The power indicator does not go 
on or stay on.)“Power System Check” on page 65.
POST does not complete. No beep or error 
codes are indicated.“Power-On Self-Test (POST) Error Message” on page 69
“Undetermined Problems” on page 76
POST detects an error and displayed messages 
on screen.“Error Message List” on page 70
The diagnostic test detected an error and 
displayed a FRU code.“System Diagnostic Diskette” on page 45
Other symptoms (i.e. LCD display problems or 
others).“Power-On Self-Test (POST) Error Message” on page 69
Symptoms cannot be re-created (intermittent 
problems).Use the customer-reported symptoms and go to “Power-On Self-
Test (POST) Error Message” on page 69
“Intermittent Problems” on page 75
“Undetermined Problems” on page 76
Troubleshooting
Chapter 4
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							64Chapter 4
System Check Procedures
External Diskette Drive Check
Do the following steps to isolate the problem to a controller, driver, or diskette. A write-enabled, diagnostic 
diskette is required.
NOTE: Make sure that the diskette does not have more than one label attached to it. Multiple labels can cause 
damage to the drive or cause the drive to fail. 
Do the following to select the test device. See “System Diagnostic Diskette” on page 45 for details.
1.The FDD heads can become dirty over time, affecting their performance. Use an FDD cleaning kit to clean 
the heads. If the FDD still does not function properly after cleaning, go to next step.
2.Boot from diagnostic program (see“System Diagnostic Diskette” on page 45)
3.If an error occurs with the internal diskette drive, reconnect the diskette connector on the main board.
If the error still remains:
1.Reconnect the external diskette drive module.
2.Replace the external diskette drive module.
3.Replace the main board.
External CD-ROM/DVD-ROM Drive Check
Do the following to isolate the problem to a controller, drive, or CD-ROM/DVD-ROM. Make sure that the CD-
ROM does not have any label attached to it. The label can cause damage to the drive or can cause the drive 
to fail.
Do the following to select the test device:
1.Insert an audio CD into the CD/DVD drive. If the CD/DVD drive can read the data from the audio CD. The 
drive does not have problem, then go to next step. If the CD/DVD LED on the front panel does not emit 
light as it read the data from the audio CD, then go to next step. However, if the CD/DVD drive can not 
read data from the audio CD, you may need to clean the CD/DVD drive with a CD/DVD drive cleaning 
disk.
2.Make sure that the appropriate driver has been installed on the computer for the CD/DVD drive.
3.Boot from the diagnostics diskette and start the diagnostics program (refer to “System Diagnostic 
Diskette” on page 45.)
4.See if CD-ROM Test is passed when the program runs to CD-ROM/DVD-ROM Test.
5.Follow the instructions in the message window.
If an error occurs, reconnect the connector on the main board. If the error still remains:
1.Reconnect the CD-ROM/DVD-ROM module.
2.Replace the CD-ROM/DVD-ROM module.
3.Replace the main board.
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							Chapter 465
Keyboard or Auxiliary Input Device Check
Remove the external keyboard if the internal keyboard is to be tested.
If the internal keyboard does not work or an unexpected character appears, make sure that the flexible cable 
extending from the keyboard is correctly seated in the connector on the main board.
If the keyboard cable connection is correct, run the Keyboard Test. See “System Diagnostic Diskette” on page 
45 for more details.
If the tests detect a keyboard problem, do the following one at a time to correct the problem. Do not replace a 
non-defective FRU:
1.Reconnect the keyboard cables.
2.Replace the keyboard.
3.Replace the main board.
The following auxiliary input devices are supported by this computer:
•Embedded Numeric Keypad
•External keyboard
If any of these devices do not work, reconnect the cable connector and repeat the failing operation.
Memory Check
Memory errors might stop system operations, show error messages on the screen, or hang the system. 
Currently, we do not provide memory test program. However, if you need to check memory but have no testing 
program or diagonositc utility at hand, please go to http://www.passmark.com to download the shareware 
“BurnIn Test V.3.0”. You may test the memory with this program under Window XP environment.
NOTE: Make sure that the DIMM is fully installed into the connector. A loose connection can cause an error.
Power System Check
To verify the symptom of the problem, power on the computer using each of the following power sources:
1.Remove the battery pack.
2.Connect the power adapter and check that power is supplied.
3.Disconnect the power adapter and install the charged battery pack; then check that power is supplied by 
the battery pack.
If you suspect a power problem, see the appropriate power supply check in the following list:
•“Check the Power Adapter” on page 66
•“Check the Battery Pack” on page 67
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							66Chapter 4
Check the Power Adapter
Unplug the power adapter cable from the computer and measure the output voltage at the plug of the power 
adapter cable. See the following figure
1.If the voltage is not correct, replace the power adapter.
2.If the voltage is within the range, do the following:
•Replace the main board.
•If the problem is not corrected, see “Undetermined Problems” on page 76.
•If the voltage is not correct, go to the next step.
NOTE: An audible noise from the power adapter does not always indicate a defect.
3.If the DC-IN indicator does not light up, check the power cord of the power adapter for correct continuity 
and installation.
4.If the operational charge does not work, see “Check the Power Adapter” on page 66. 
Pin 1: 19V
Pin 2: 0V, Ground
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							Chapter 467
Check the Battery Pack
To check the battery pack, do the following:
From Software:
1.Check out the Power Options in control Panel
2.In 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 the computer. 
2.Remove the battery pack and measure the voltage between battery terminals 1(+) and 6(ground).
3.If the voltage is still less than 7.5 Vdc after recharging, replace the battery.
4.If the voltage is within the normal range, run the diagnostic program.
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. 
Re-install the battery pack.
If the charge indicator still does not emit, replace the battery pack. If the charge indicator still does not light up, 
replace the DC/DC charger board.
Touchpad Check
If the touchpad doesn’t work, do the following actions one at a time to correct the problem. Do not replace a 
non-defective FRU:
1.After rebooting, run Touch pad/PS2 Mode Driver.
2.Run utility with the PS/2 mouse function and check if the mouse is working.
3.If the PS/2 mouse does not work, then check if the main board to switch board FPC is connected well.
4.If the main board to switch board FPC is connected well, then check if the touch pad  FPC connects to the 
main board properly.
5.If there is still an error after you have connected the touch pad FPC to the main board properly, then 
replace the touch pad or touch pad FPC. The touch pad or touch pad FPC may be damaged.
6.Replace switch board.
7.If the touch pad still does not work, then replace the FPC on Track Pad PCB.
After you use the touchpad, the pointer drifts on the screen for a short time. This self-acting pointer movement 
can occur when a slight, steady pressure is applied to the touchpad pointer. This symptom is not a hardware 
problem. No service actions are necessary if the pointer movement stops in a short period of time.
Display Check
1.Connect an external display to the computer’s external monitor port, the boot the computer. The computer 
can automatically detect the external display. Press Fn+ p to switch to the external display.
2.If the external display works fine, the internal LCD may be damaged. Then perform the following steps:
Make sure the DDRRAM module is seated properly. Then run the diplay test again. If the problem 
still exists, go to next step.
Replace the inverter board, then run the display test program again. If the problem still occurs, go 
on next step.
Replace the LCD module with a new one then run the display test again. If the probelm still 
happens, continue next step.
Replace LCD/FL cable with a new one then execute the display diagnostic again. If the problem 
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							68Chapter 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.
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							Chapter 469
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 76.
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. 
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							70Chapter 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 65. 
0212 Keyboard Controller Failed see “Keyboard or Auxiliary Input Device Check” on page 65. 
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 64. 
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
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							Chapter 471
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
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							72Chapter 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 65. 
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 65“.
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 65. 
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 66. 
Battery pack
Main board
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