Acer Travelmate 330 Service Guide

							Chapter 3 81
Removing the Touchpad
1.  Remove the two screws from the touchpad bracket.
2.  Remove the touchpad bracket from the uppercase.
3.  Disconnect the touchpad cable from the touchpad board.
 
4.  Remove the touchpad cable from the uppercase.
5.  Remove the touchpad board from the uppercase. 
						

							82 Removal and Replacement 
6.  Disconnect the hard drive/battery connection board from the system 
board.
Removing the Fan
1.  Disconnect the fan cable from the system board.
2.  Remove the two screws, then remove the fan from the system board. 
						

							Chapter 3 83
Removing the PCMCIA Slot
1.  Remove the screw of the PCMCIA slot.
2.  Remove the PCMCIA slot from the system board.
3.  This completes the disassembly procedure of the main unit. 
						

							84 Removal and Replacement  
						

							Chapter 4 85
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 88.
POST does not complete. No beep or 
error codes are indicated.“Error Symptom-to-FRU Index” on 
page 48.
“Undetermined Problems” on page 56
POST detects an error and displayed 
messages on screen.“Error Messages List” on page 90
The diagnostic test detected an error 
and displayed a FRU code.“Running PQA Diagnostics Program.” 
on page 60
Other symptoms (i.e. LCD display 
problems or others).“Error Symptom-to-FRU Index” on 
page 48
Symptoms cannot be re-created 
(intermittent problems).Use the customer-reported symptoms 
and go to “Error Symptom-to-FRU 
Index” on page 48
“Intermittent Problems” on page 56
“Undetermined Problems” on page 56
Troubleshooting
Chapter 4 
						

							86 Troubleshooting 
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 60 for details.
1.  Boot from the diagnostics diskette and start the PQA program (see 
“Running PQA Diagnostics Program.” on page 60).
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 system 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 system board.
External CD-ROM Drive Check
Do the following to isolate the problem to a controller, drive, or CD-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.  Boot from the diagnostics diskette and start the PQA program (refer to 
“Running PQA Diagnostics Program”.
2.  Go to the diagnostic CD-ROM in the test items.
3.  Press F2 in the test items.
4.  Follow the instructions in the message window. 
						

							Chapter 4 87
If an error occurs, reconnect the connector on the System 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 system 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 system board.
If the keyboard cable connection is correct, run the Keyboard Test. See 
“Running PQA Diagnostics Program.” on page 60 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 system board.
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”.
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. 
						

							88 Troubleshooting 
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 88

“Check the Battery Pack” on page 88
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 System board.

If the problem is not corrected, see “Undetermined Problems” on page 
56.

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 88. 
Check the Battery Pack 
To check the battery pack, do the following:
1.  Power off the computer. 
Pin 1: +19 to +20.5V
Pin 2: 0V, Ground 
						

							Chapter 4 89
2.  Remove the battery pack and measure the voltage between battery 
terminals 1(+) and 6(ground). 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 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.  Reconnect the touchpad cables.
2.  Replace the touchpad.
3.  Replace the system 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. 
						

							90 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 symptom is not listed, see “Undetermined Problems” on page 56.
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
Error Messages List
Error MessagesAction in Sequence
Failure Fixed Disk Reconnect hard disk drive connector.
“Load Default Settings” in BIOS Setup Utility.
Hard disk drive
System board
Stuck Key See “Keyboard or Auxiliary Input Device Check” 
on page 45 . 
Keyboard error See “Keyboard or Auxiliary Input Device Check” 
on page 45. 
Keyboard Controller Failed See “Keyboard or Auxiliary Input Device Check” 
on page 45. 
Keyboard locked - Unlock 
key switchUnlock external keyboard
Monitor type does not 
match CMOS - Run SetupRun “Load Default Settings” in BIOS Setup Utility.
Shadow RAM Failed at 
offset: nnnnBIOS ROM
System board
System RAM Failed at 
offset: nnnnDIMM
System board