Acer Travelmate 740 Service Guide

Chapter 473
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 67. 
Ensure every connector is connected tightly and correctly. 
Reconnect the DIMM.
LED board.
System 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 67. 
Reconnect the LCD connector
Hard disk drive...

74Chapter 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 Default Settings”, then 
reboot system.
Reconnect the LCD connectors.
Keyboard (if contrast and brightness function key doesnt work).
LCD inverter ID
LCD cable
LCD inverter
LCD
System board
Unreadable LCD screen 
Missing pels in characters
Abnormal screen...

Chapter 475
PCMCIA-Related Symptoms
Symptom / ErrorAction in Sequence
System cannot detect the PC Card (PCMCIA)  PCMCIA slot assembly
System board
PCMCIA slot pin is damaged. PCMCIA slot assembly
Memory-Related Symptoms
Symptom / ErrorAction in Sequence
Memory count (size) appears different from 
actual size.Enter BIOS Setup Utility to execute “Load Default Settings, then 
reboot system.
DIMM
System board
Speaker-Related Symptoms
Symptom / ErrorAction in Sequence
In Windows, multimedia programs, no sound...

76Chapter 4
NOTE: If you cannot find a symptom or an error in this list and the problem remains, see “Undetermined 
Problems” on page 78.
System hangs intermittently. See “Thermal & Fan Utility” on page 38. 
Reconnect hard disk/CD-ROM drives. 
Hard disk connection board
System board
Peripheral-Related Symptoms
Symptom / ErrorAction in Sequence
System configuration does not match the 
installed devices. Enter BIOS Setup Utility to execute “Load Default Settings”, then 
reboot system.
Reconnect hard...

Chapter 477
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 advanced diagnostic test for the system board in loop mode at least 10 times.
2.
If no error is detected, do not replace any FRU.
3.
If...

78Chapter 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”...

Chapter 479
Index of AFlash BIOS Error Message
Error MessageAction in Sequence
Hardware Error  See “System Diagnostic Diskette” on page 38
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. 

80Chapter 4
Index of PQA Diagnostic Error Code, Message
Error CodeMessageAction in Sequence
16XXX Backup battery error Backup battery
01XXX CPU or main board error Reload BIOS default setting.
System board
02XXX Memory error DIMM
System board
03XXX Keyboard error Reset Keyboard
Keyboard
System board
04XXX Video error System board
05XXX Parallel Port error System board
06XXX Serial port or main board error System board
07XXX Diskette drive error Diskette drive
System board
08XXX Hard disk error Reload...

Chapter 581
To p  Vi e w
VR1PH3
PH2PH1
CN13
CN8 U2
CN7
CN2
CN5
CN4
CN3
CN6
CN1
CN9
CN10 CN12
CN15 SW1
CN16
CN18 CN26 CN19
CN11 CN14
CN17
Jumper and Connector Locations
Chapter 5 

82Chapter 5
PCB 01200-S
SW1 Settings
VR1 Volume Control CN1 PS/2 Port
PH3 Microphone-in Port CN9 LCD Cover Switch Connector
PH2 Line-in Port CN10 LED/Inverter Board Connector
PH1 Line-out Port CN12 External CD/DVD-ROM Module 
Connector
CN13 Cardbus Socket CN15 Internal Keyboard Connector
CN8 FAN Connector SW1 See SW1 Setting listed below
U2 FIR CN16 Finger Print Check
CN7 USB Port CN18 HDD Connector
CN2 VGA Port CN26 Battery Connector
CN5 LAN Connector (RJ45) CN19 Debug Board
CN4 Parallel Port CN11 LCD...