Acer Aspire 9100 Service Guide

Chapter 474
43DEBUG_HWIO_ROM_INITSearch option rom from c800 to e000 and to 
Initialize option ROMs
44DEBUG_OEM_INIT_POWER_MANCheck special device initial power management 
function
45DEBUG_KEYB_SET_LEDS_2Clear keyboard buffer and Update NUMLOCK 
status
46DEBUG_HWIO_FIND_80X87Test For Coprocessor Installed, and enable 
coprocessor interrupt
47DEBUG_OEM_LAST_MINUTE_INITRun OEM functions before boot, and enable 
L1,L2 cache
48DEBUG_MISC_LAUNCH_INT19Post code will finish, ready to run int19 and load 
OS...

75Chapter 4
E5DEBUG_PCI_ADDIN_ROM_ 
DISABLE_2disable PCI video device add-in rom card decode
E6DEBUG_RET_PCI_2PCI device config finish
E7DEBUG_BRIDGE_HUNTSearch for PCI bridge controllor device
E8DEBUG_PCI_IDE_FINDSearch IDE controllors on the PCI bus, and 
config the IDE controllors
E9DEBUG_CB_CONFIGstart of cardbus config
PNP BIOS  --  PNPINIT.ASM
A1DEBUG_PNP_ENABLE_VERIFY_RT
DATAEnable and Verify R/W Status for PNP BIOS 
Runtime Data Area
A2DEBUG_PNP_GET_VERIFY_NVRAMGet and Verify R/W Status for PNP...

Chapter 476
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 Defaults” on Exit screen, 
then reboot system.
Reconnect the LCD connectors.
Keyboard (if contrast and brightness function key doesnt work).
LCD cable
LCD inverter
LCD
Main board
Unreadable LCD screen 
Missing pels in characters
Abnormal screen 
Wrong...

77Chapter 4
PCMCIA-Related Symptoms
Symptom / ErrorAction in Sequence
System cannot detect the PC Card (PCMCIA)  PCMCIA slot assembly
Main board
PCMCIA slot pin is damaged. PCMCIA slot assembly
Memory-Related Symptoms
Symptom / ErrorAction in Sequence
Memory count (size) appears different from 
actual size.DIMM
Main board
Speaker-Related Symptoms
Symptom / ErrorAction in Sequence
In Windows, multimedia programs, no sound 
comes from the computer. See “Sound Check” on page 65
Audio driver
Speaker
Main...

Chapter 478
NOTE: If you cannot find a symptom or an error in this list and the problem remains, see “Undetermined 
Problems” on page 80. Peripheral-Related Symptoms
Symptom / ErrorAction in Sequence
System configuration does not match the 
installed devices. Enter BIOS Setup Utility to execute “Load Setup defaults”, then 
reboot system.
Reconnect hard disk/CD-ROM/diskette drives.
External display does not work correctly. See if there is an error beep. If there is an erro beep, then change 
main board....

79Chapter 4
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 diagnostic test for several times to isolate the problem.
2.If no error is detected, do not replace any FRU.
3.If any error is detected,...

Chapter 480
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” on...

81Chapter 4 

Chapter 582
To p  V i e w
PJPD1 DC JACK JP5 TV-OUT CONNECTOR
JP13 DUAL USB CONNECTOR JP6 CRT CORRECTOR
JP1 CPU SOCKET JP11 SINGLE USB CONNECTOR
JP2 FAN CONNECTOR JP3 LCD CONNECTOR
JP31 LED CONNECTOR JP4 INVERTER CONNECTOR
JP29 KEYBOARD CONNECTOR U2 NORTH BRIDGE
JP8 CD-ROM CONNECTOR U5 GRAPHICS CHIP
JP7 HDD CONNECTOR U6 VGA MEMORY CHIP
JP34 TOUCHPAD CONNECTOR U7 VGA MEMORY CHIP
JP30 SW DJ BOARD CONNECTOR U8 VGA MEMORY CHIP
J25 NOT INSTALL U9 VGA MEMORY CHIP
PJP1 BATTERY CONNECTOR JP24 CARD BUS SOCKET
JP27...

83Chapter 5
Bottom View
   
JP13 DUAL USB CONNECTOR JP5 TV-OUT CONNECTOR
JP8 CD-ROM CONNECTOR JP6 CRT CONNECTOR
JDIM1 MEMORY CONNECTOR JP11 SINGEL USB CONNECTOR
JDIM2 MEMORY CONNECTOR JP26 IEEE1394 CONNECTOR
BATT1 COIN CELL CONNECTOR JP12 SINGEL USB CONNECTOR
PJP1 BATTERY CONNECTOR U16 SOUTH BRIDGE 
SW Settings