Acer Aspire 5910 Service Guide

Chapter 173
AAh Scan for F2 key stroke
ACh Enter SETUP
AEh Clear Boot flag
B0h Check for errors
B2h POST done—prepare to boot operating 
system
B4h 1 One short beep before boot
B5h Terminate QuietBoot (optional)
B6h Check password (optional)
B9h Prepare Boot
BAh Initialize DMI parameters
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)...

74Chapter 1
F0h Initialize interrupt vectors
F1h Initialize Run Time Clock
F2h Initialize video
F3h Initialize System Management Mode
F4h 1 Output one beep before boot
F5h Boot to Mini DOS
F6h Clear Huge Segment
F7h Boot to Full DOS
CodeBeepsPOST Routine Description
Acer Aspire 5910 SG.book  Page 74  Tuesday, May 29, 2007  11:40 AM 

Chapter 175
Index of Symptom-to-FRU Error Message
NOTE:  If the symptom or error for your problem condit ion is not listed in this section, refer to the 
“Undetermined Problems” section on page 79.
LCD-related Symptoms 
Power-related Symptoms
Symptom/ErrorAction in Sequence
LCD backlight doesnt work
LCD is too dark
LCD brightness cannot be adjusted
LCD contrast cannot be adjusted Run the Setup Utility, then press 
F9 to load the system 
defaults.
Reconnect the LCD-CCD cable.
Keyboard (if contrast and...

76Chapter 1
Memory-related Symptom
Audio-related Symptoms
Power Management-related Symptoms 
Symptom / ErrorAction in Sequence
Memory count (size) appears different from 
actual size.Run the Setup Utility, then press 
F9 to load the system 
defaults.
DIMM
System board
Symptom / ErrorAction in Sequence
In Windows multimedia programs, no 
sound comes from the computer.  Audio driver
Speaker
System board
Internal speakers emit noise or emit no 
sound. Speaker
System board
Symptom / ErrorAction in Sequence...

Chapter 177
I/O-related Symptoms  
Symptom / ErrorAction in Sequence
System configuration values does not 
match the installed devices. Run the Setup Utility, then press 
F9 to load the system 
defaults.
Reconnect hard disk/CD-ROM/diskette drives.
External display does not work correctly. Press  Fn+F5 , LCD/CRT/both di splay switching
System board
USB does not work correctly System board
Print problems Run printer self-test. Printer driver
Printer cable
Printer
System board
Keyboard (one or more keys)...

78Chapter 1
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, electrosta tic 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 syst em board in loop mode at least ten times.
2. If no error is detected,  do not replace any FRU.
3....

Chapter 179
Undetermined Problems
Undetermined problems are those for which diagnostic tests cannot identify the cause. This may be a failure to 
detemine which adapter or device failed,  which installed device is malfunctioning, a short circuit is suspected, 
or when the system is inoperative.  
IMPORTANT:  Verify that all attached devices are support ed by the computer, and that power supply to the 
computer is good.
Follow these procedures to isolate the faili ng FRU (do not isolate non-defective...

80Chapter 1
Online Support Information
This section describes online technical support services available to help you repair your Aspire notebook.
If you are a distributor, dealer, ASP or TPM, please refer your technical queries to your local Acer branch 
office. Acer Branch Offices and Regional Business Units may access our website at http://global.acer.com/
support/index. However some information sources will require a user ID and password. These can be obtained 
directly from Acer CSD Taiwan.
Acers...

Chapter 581
System Block Diagram 
System Block Diagram and Board Layout
Chapter 5
Acer Aspire 5910 SG.book  Page 81  Tuesday, May 29, 2007  11:40 AM 

82Chapter 1
System Board Layout
This section shows the top and bottom layo ut of the Aspire 5910 system board. 
Top View  
ItemCodeDescriptionItemCodeDescription
1 USBCN1 USB FPC cable connector 10 U14 Intel ICH7-M (south bridge)
2 MEDIA1 Media FPC cable connector 11 LAUNCHCN1 Launch board cable 
connector
3 KB1 Keyboard cable connector 12 PWRCN1 Power FPC cable connector
4 TPAD1 Touchpad board cable  connector 13 U4 BCM5787M Gigabit Ethernet 
controller
5 SPKR2 Subwoofer cable connector 14 INTMIC1...