Acer Travelmate 2400 Service Guide

54Chapter 3
8.Detach the VGA thermal from the VGA board.
9.Disconnect the modem cable from the main board.
10.Remove the two screws fastening the modem board as shwon.
11 .Disconnect the modem board from the main board.
12.Disconnect the modem cable from the modem board.
13.Remove the two screws holding the speaker set to the lower case.
14.Take out the speaker set from the lower case. This completes the main unit disassembly. 

Chapter 355
Disassembling the LCD Module
1.Remove the four screw caps as shown.
2.Remove the four screws holding the LCD bezel.
3.Then detach the LCD bezel from the LCD module.
4.Remove the screw fastening the LCD inverter.
5.Disconnect the LCD cable and disconnect the inverter cable, then remove the inverter.
6.Remove the two screws fastening the LCD assembly to the LCD panel.
7.Take out the LCD assembly from the LCD panel.
8.Remove the four screws fastening the LCD left bracket then remove it.
9.Remove...

56Chapter 3
Disassembling the External Modules
Disassembling the HDD Module
1.Remove the two screws holding the HDD bracket on one side.
2.Remove another two screws holding the HDD bracket on the other side.
3.Then take the hard disc drive out of the HDD bracket.
Disassembling the ODD Module
1.Remove the two screws fastening the ODD bracket.
2.Remove the ODD bracket from the optical disc drive module. 

Chapter 457
Use the following procedure as a guide for computer problems.
NOTE: The diagnostic tests are intended to test this model.  Non-Acer products, prototype cards, or modified 
options can give false errors and invalid system responses.
1.Duplicate symptom and obtain the failing symptoms in as much detail as possible.
2.Distinguish symptom. Verify the symptoms by attempting to re-create the failure by running the diagnostic 
test or by repeating the same operation.
3.Disassemble and assemble the...

58Chapter 4
System Check Procedures
External Diskette Drive Check
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/DVD-ROM module.
2.Replace the external diskette drive/CD-ROM module.
3.Replace the main 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...

Chapter 459
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:
T“Check the Battery Pack” on page 60 

60Chapter 4
Check the Battery Pack
To check the battery pack, do the following:
From Software:
1.Check out the Power Management 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...

Chapter 461
Insyde MobilePro BIOS POST Beep Code and POST Messages
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...

62Chapter 4
N/A “NO INTERRUPTS FROM TIMER 0” Timer 0 of the clock timer controller does not 
generate system interrupts correctly.
N/A “UNEXPECTED AMOUNT OF 
MEMORY - RUN SCU”The system memory size does not match with 
the CMOS record.
N/A “CLOCK NOT TICKING CORRECTLY” The system clock does not working correctly.
N/A “TIME/DATA CORRUPT - RUN SCU” The time/date information in CMOS is invalid.
N/A “MACHINE IS LOCKED - TURN KEY” The keyboard operation is locked.
N/A “BOOT SECTOR 0 HAS CHANGED” The boot...

Chapter 463
Insyde MobilePro BIOS POST Codes
POST CodeMacro NameDescription
Boot Loader--BLOAD.ASM
00DIAG_SYSTEM_INITBoot started, check motherboard power is stable.
01DIAG_A20_DISABLEDisable A20 through A20
02DIAG_INIT_CHIPSETInitialize Chipset
03DIAG_TEST_RAMTest the basic 640k RAM
04DIAG_MOVE_BB_LOADERMove boot load segment into the RAM
05DIAG_EXECUTE_IN_DRAMprogram execution from DRAM
06DIAG_USER_FLASH_CHECKTest print port for check crisis option is enable or 
disable
07DIAG_SHADOW_BIOSDecompress the...