Acer Aspire 9420 9410 7110 TravelMate 5620 5610 5110 User Manual

							81Chapter 4
B1h Inform RomPilot about the end of 
POST.
B2h POST done- prepare to boot operating 
system
B4h 1 One short beep before boot
B5h Terminate QuietBoot (optional)
B6h Check password (optional)
B7h Initialize ACPI BIOS
B9h Prepare Boot
BAh Initialize SMBIOS
BBh Initialize PnP Option ROMs
BCh Clear parity checkers
BDh Display MultiBoot menu
BEh Clear screen (optional)
BFh Check virus and backup reminders
C0h Try to boot with INT 19
C1h Initialize POST Error Manager (PEM)
C2h Initialize error logging
C3h Initialize error display function
C4h Initialize system error handler
C5h PnPnd dual CMOS (optional)
C6h Initialize notebook docking (optional)
C7h Initialize notebook docking late
C8h Force check (optional)
C9h Extended checksum (optional)
CAh Redirect Int 15h to enable remote 
keyboard
CBh Redirect Int 13h to Memory 
Technologies Devices such as ROM, 
RAM, PCMCIA, and serial disk.
CCh Redirect Int 10h to enable remote serial 
video
CDh Re-map I/O and memory for PCMCIA
CEh Initialize digitizer and display message.
D2h Unknown interrupt
The following are for boot block in Flash ROM
E0h Initialize the chipset
E1h Initialize the bridge
E2h Initialize the CPU
E3h Initialize the system timer
E4h Initialize system I/O
E5h Check force recovery boot
E6h Checksum BIOS ROM
E7h Go to BIOS
E8h Set Huge Segment
CodeBeepsPOST Routine Description 
						

							Chapter 482
E9h Initialize Multi Processor
EAh Initialize OEM special code
EBh Initialize PIC and DMA
ECh Initialize Memory type
EDh Initialize Memory size
EEh Shadow Boot Block
EFh System memory test
F0h Initialize interrupt vectors
F1h Initialize Run Time Clock
F2h Initialize video
F3h Initialize System Management Mode
F4h 1 Output one beep
F5h Clear Huge Segment
F6h Boot to Mini DOS
F7h Boot to Full DOS
CodeBeepsPOST Routine Description 
						

							83Chapter 4
Index of Symptom-to-FRU Error Message
Symptom/ErrorAction in Sequence
LCD backlight doesnt work.
LCD is too dark.
LCD brightness cannot be adjusted.
LCD contrast cannot be adjusted.Enter BIOS Utility to execute “Load Setup Default 
Settings”, then reboot system.
Reconnect the LCD connectors.
Keyboard (if contrast and brightness function key do 
not work).
LCD inverter ID
LCD cable
LCD inverter
LCD
System board
Unreadable LCD screen 
Missing pels in characters
Abnormal screen 
Wrong color displayedReconnect the LCD connector.
LCD inverter ID
LCD cable
LCD inverter
LCD
System board
LCD has extra horizontal or vertical 
lines displayed.LCD inverter ID
LCD inverter
LCD cable
LCD
System board
Symptom/ErrorAction in Sequence
Indicator incorrectly 
remains off or on, but 
system runs correctly.Reconnect the inverter board
Inverter board
System board
Symptom/ErrorAction in Sequence
Power shuts down during 
operation.Power source (battery pack and power adapter). See “Power 
System Check”. 
Battery pack
Power adapter
Hard drive & battery connection board
System board
The system doesn’t power 
on.Power source (battery pack and power adapter). See “Power 
System Check”. 
Battery pack
Power adapter
Hard drive & battery connection board
System board
The system doesn’t 
power-off.Power source (battery pack and power adapter). See Power 
System Check”. 
Hold and press the power switch for more than 4 seconds. 
System board
Battery can’t be charged. See “Check the Battery Pack”. 
Battery pack
System board 
						

							Chapter 484
Symptom/ErrorAction in Sequence
System cannot detect the 
PC Card (PCMCIA). PCMCIA slot assembly
System board
PCMCIA slot pin is 
damaged.PCMCIA slot assembly
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
Symptom/ErrorAction in Sequence
In Windows, multimedia 
programs, no sound 
comes from the computer. Audio driver
Speaker
System board
Internal speakers make 
noise or emit no sound.Speaker
System board
Symptom/ErrorAction in Sequence
The system will not enter 
hibernation.Keyboard (if control is from the keyboard)
Hard disk drive
System board
The system does not 
enter hibernation mode 
and four short beeps 
every minute.Press Fn + F4
 and see if the computer enters hibernation 
mode.
Touchpad
Keyboard
Hard disk connection board
Hard disk drive
System board
The system does not 
enter standby mode after 
closing the LCD.LCD cover switch
System board
The system does not 
resume from hibernation 
mode.Hard disk connection board
Hard disk drive
System board
The system does not 
resume from standby 
mode after opening the 
LCD.LCD cover switch
System board
Battery fuel gauge in 
Windows does not go 
higher than 90%. Remove battery pack and let it cool for two hours.
Refresh battery (continue to use battery until power off, then 
charge battery).
Battery pack
System board
System hangs 
intermittently.Reconnect hard disk/CD-ROM drives. 
Hard disk connection board
System board 
						

							85Chapter 4
Note: If you can not correct the problems according to the anterior tables, see “Undetermined Problems”.
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 disk/CD-ROM/diskette drives.
External display does not 
work correctly.Press Fn + F5, LCD/CRT/Both display switching
System board
USB does not work 
correctly.System board
Print problems Ensure the “Parallel Port” in the “Onboard Devices 
Configuration” of BIOS Setup Utility is set to Enabled.
Onboard Devices Configuration
Run printer self-test.
Printer driver
Printer cable
Printer
System Board
Serial or parallel port 
device problems.Ensure the “Serial Port” in the Devices Configuration” of BIOS 
Setup Utility is set to Enabled.
Device driver
Device cable
Device
System board
Symptom/ErrorAction in Sequence
Keyboard (one or more 
keys) does not work.Reconnect the keyboard cable.
Keyboard
System board
Touchpad does not work. Reconnect touchpad cable.
Touchpad board
System board
Symptom/ErrorAction in Sequence
Internal modem does not 
work correctly.Modem phone port
modem combo board
System board 
						

							Chapter 486
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 problems, follow the procedures below:
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 any error is detected, replace the FRU. Rerun the test to verify that there are no more errors. 
						

							87Chapter 4
Undetermined Problems
The diagnostic problems does not identify which devices fail, which devices are incorrectly installed, whether a 
short circuit happens, or whether the system is inoperative.
Note: Verify if all devices attached are supported by the computer.
Note: Verify if the power supply used at the time of failure is operating correctly. You can refer to “Power 
System Check”.
Follow the procedures below to isolate the failing FRU. Do not isolate non-defective FRU.
1. Power off the computer.
2. Visually check the devices. If any problems are found, replace the FRU.
3. Remove or disconnect all of the following devices:
•Non-Acer devices
•Printer, mouse, and other external devices
•Battery Pack
•Hard disk drive
•DIMM
•CD-ROM / Diskette drive module
•PC cards
4. Power on the computer.
5. Determine if the problem has been resolved.
6. If the problem does not recur, reconnect the removed devices one at a time until you find the failed FRU.
7. If the problem remains, replace the following FRU one at a time. Do not replace a non-defective FRU.
•System board
•LCD assembly 
						

							Chapter 588
Top View
No.DescriptionNo. Description
1 DC-in jack 2 USB connector
3 CRT connector 4 RJ11 & RJ45 connector
5 MDC module connector 6 MDC board connector
7 Main battery connector 8 ODD connector
9 Mini PCI slot 10 CPU
11 North bridge 12 DIMM slot
13 South bridge 14 HDD connector
15 Line-in jack 16 Microphone-in jack
Jumper and Connector Location
Chapter 5 
						

							89Chapter 5
17 Line-out jack 18 Cardbus controller
19 USB connector 20 LAN controller
21 BIOS ROM 22 RTC battery connector
23 5-in-1 card reader
No.DescriptionNo. Description 
						

							Chapter 590
Bottom View
ItemDescriptionItemDescription
1 Keyboard controller 2 Keyboard connector
3 Lid switch connector 4 System fan connector
5 PCMCIA card reader 6 Function key board connector
7 Touch pad board connector 8 Speaker connector
9 Bluetooth module connector 10 LCD cable connector