Acer Travelmate 610 Service Guide

							Chapter 373
8.
Remove the touch pad board from the upper case.
9.
Remove the touch pad button and scroll key from the upper case.
10.
Then, remove the touch pad FPC cable from the upper case. 
						

							74Chapter 3 
						

							Chapter 475
Use the following procedure as a guide for computer problems.
NOTE: 
The diagnostic tests are intended to test only Acer products. Non-Acer products, prototype cards, or 
modified options can give false errors and invalid system responses.
1.
Obtain the failing 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.
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 77.
POST does not complete. No beep or error codes are 
indicated.“Power-On Self-Test (POST) Error Message” on page 
79 “Undetermined Problems” on page 86
POST detects an error and displayed messages on 
screen.“Error Message List” on page 79
The diagnostic test detected an error and displayed a 
FRU code.“Running PQA Diagnostics Progra” on page 43
Other symptoms (i.e. LCD display problems or others).“Power-On Self-Test (POST) Error Message” on page 
79
Symptoms cannot be re-created 
(intermittent problems).Use the customer-reported symptoms and go to “Power-
On Self-Test (POST) Error Message” on page 79
“Intermittent Problems” on page 86
“Undetermined Problems” on page 86
Troubleshooting
Chapter 4 
						

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System Check Procedures
External Diskette Drive Check
Do the following 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 “Running PQA Diagnostics Program” on page 43 for details.
1.
Boot from the diagnostics diskette and start the PQA program (See “Running PQA Diagnostics Program” 
on page 43).
2.
Go to the diagnostic Diskette Drive in the test items.
3.
Press F2 in the test items.
4.
Follow the instructions in the message window.
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/CD-ROM module.
2.
Replace the external diskette drive/CD-ROM module.
3.
Replace the main board.
External CD/DVD-ROM Drive Check
Do the following to isolate the problem to a controller, drive, or CD/DVD-ROM. Make sure that the CD/DVD-
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.
Boot from the diagnostics diskette and start the PQA program (refer to “Running PQA Diagnostics 
Program” on page 43.
2.
Go to the diagnostic CD/DVD-ROM in the test items.
3.
Press F2 in the test items.
4.
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 external diskette drive/CD/DVD-ROM module.
2.
Replace the external diskette drive/CD/DVD-ROM module.
3.
Replace the main board.
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 “Running PQA Diagnostics Program” 
on page 43 for 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. 
						

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The following auxiliary input devices are supported by this computer:
!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.
1.
Boot from the diagnostics diskette and start the PQA program (please refer to “Running PQA Diagnostics 
Program” on page 43.
2.
Go to the diagnostic memory in the test items.
3.
Press F2 in the test items.
4.
Follow the instructions in the message window.
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 77
!“Check the Battery Pack” on page 77
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 86.
!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 power-on 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 Battery Pack” on page 77. 
Check the Battery Pack 
To check the battery pack, do the following:
Pin 1: +19 to +20.5V
Pin 2: 0V, Ground 
						

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1.
Power off the computer. 
2.
Remove the battery pack and measure the voltage between battery terminals 1(ground) and 7(BT+). See 
the following figure
3.
If the voltage is still less than 7.2 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. 
Re-install the battery pack.
If the charge indicator still does not light up, replace the battery pack. If the charge indicator still does not light 
up, replace the main 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.
Reconnect the touchpad cables.
2.
Replace the touchpad.
3.
Replace the main board.
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.
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							79
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 86.
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. 
Index of Error Messages
Error Message List
Error MessagesFRU/Action in Sequence
Failure Fixed Disk Reconnect hard disk drive connector.
“Load Default Settings” in BIOS Setup Utility.
Hard disk drive
Main Board
Stuck Key see  Keyboard or Auxiliary Input Device Check” on page 76 . 
Keyboard error see  Keyboard or Auxiliary Input Device Check” on page 76. 
Keyboard Controller Failed see  Keyboard or Auxiliary Input Device Check” on page 76. 
Keyboard locked - Unlock key switch Unlock external keyboard
Monitor type does not match CMOS - Run 
SetupRun “Load Default Settings” in BIOS Setup Utility.
Shadow RAM Failed at offset: nnnn BIOS ROM
Main Board
System RAM Failed at offset: nnnn DIMM
Main Board
Extended RAM Failed at offset: nnnn DIMM
Main 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.
Main Board
Real time clock error RTC battery
Run BIOS Setup Utility to reconfigure system time, then reboot 
system.
Main Board 
						

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Previous boot incomplete - Default 
configuration usedRun “Load Default Settings” in BIOS Setup Utility.
RTC battery
Main Board
Memory size found by POST differed from 
CMOSRun “Load Default Settings” in BIOS Setup Utility.
DIMM
Main 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 76. 
Incorrect Drive A type - run SETUP Check the drive is defined with the proper diskette type in BIOS 
Setup Utility
See “External Diskette Drive Check” on page 76. 
System cache error - Cache disable Main Board
CPU ID: Main Board
DMA Test Failed DIMM
Main Board
Software NMI Failed DIMM
Main Board
Fail-Safe Timer NMI Failed DIMM
Main Board
Device Address Conflict Run “Load Default Settings” in BIOS Setup Utility.
RTC battery
Main Board
Allocation Error for device Run “Load Default Settings” in BIOS Setup Utility.
RTC battery
Main Board
Failing Bits: nnn DIMM
BIOS ROM
Main Board
Fixed Disk n None
Invalid System Configuration Data BIOS ROM
Main Board
I/O device IRQ conflict Run “Load Default Settings” in BIOS Setup Utility.
RTC battery
Main Board
Operating system not found Enter Setup and see if fixed disk and drive A: are properly 
identified.
Diskette drive
Hard disk drive
Main Board
Error Message List
Error MessagesFRU/Action in Sequence 
						

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Index of Symptom-to-FRU Error Message
Error Message List
No beep Error MessagesFRU/Action 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 77. 
E n s u r e  e v e r y  c o n n e c t o r  i s  c o n n e c t e d  t i g h tly and correctly. 
Reconnect the DIMM.
LED board.
Main 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 77. 
Reconnect the LCD connector
Hard disk drive
LCD inverter I
LCD cabl
LCD Inverter
LCD
Main 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 I
LCD  cable 
LCD inverter
LCD
Main Board
No beep, power-on indicator turns on and a 
blinking cursor shown on LCD during POST.E n s u r e  e v e r y  c o n n e c t o r  i s  c o n n e c t e d  t i g h tly and correctly.
Main Board
No beep during POST but system runs 
correctly.Speake
Main Board 
						

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Index of Symptom-to-FRU Error Message
No beep Error MessagesFRU/Action 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 77. 
E n s u r e  e v e r y  c o n n e c t o r  i s  c o n n e c t e d  t i g h tly and correctly. 
Reconnect the DIMM.
LED board.
Main 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 77. 
Reconnect the LCD connector
Hard disk drive
LCD inverter I
LCD cabl
LCD Inverter
LCD
Main 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 I
LCD  cable 
LCD inverter
LCD
Main Board
No beep, power-on indicator turns on and a 
blinking cursor shown on LCD during POST.E n s u r e  e v e r y  c o n n e c t o r  i s  c o n n e c t e d  t i g h tly and correctly.
Main Board
No beep during POST but system runs 
correctly.Speake
Main 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 I
LCD cabl
LCD inverter
LCD
Main Board
Unreadable LCD screen 
Missing pels in characters
Abnormal screen 
Wrong color displayedReconnect the LCD connector
LCD inverter I
LCD cabl
LCD inverter
LCD
Main Board