Acer Travelmate 2350 Service Guide

55Chapter 4
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...

Chapter 456
N/A“PARITY ERROR AT 
UNKNOWN
LOCATION”Parity error during memory test at unknown 
location.
N/A “PARITY ERROR AT LOCATION 
XXXXXX”Parity error during memory test at the indicated 
location.
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...

57Chapter 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 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...

Chapter 458
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 54
Audio driver
Speaker
Main...

59Chapter 4
NOTE: If you cannot find a symptom or an error in this list and the problem remains, see “Undetermined 
Problems” on page 60. 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....

Chapter 460
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...

Chapter 561
Top View
 
ItemDescriptionItemDescription
JP1 CRT CONN                    JP18 SPK CONN.
JP5 RJ11/RJ45 CONN. JP19 TP/B CONN.
JP6 USB CONN X2 JP20 MIC JACK
JP7 CPU FAN CONN JP22 K/B CONN.
JP8 USB CONN. JP23 PHONE JACK
JP9 POWER/B CONN. JP24 LED/B CONN.
JP10 LVDS CONN. U9 BIOS ROM
JP11 MBC CONN. U12 NB
JP12 CPU Socket PCN1 AC JACK
JP13 MINIPCI CONN. PJP9 BATT. CONN.
JP15 CARDBUS CONN. SW1 LID SWITCH
JP16 HDD CONN. SW3 KILL SWITCH
Jumper and Connector Locations
Chapter 5 

62Chapter 5
JP17 ODD CONN.
ItemDescriptionItemDescription 

Chapter 563
Bottom View
ItemDescriptionItemDescription
U35 CARDBUS CONTROLLER JP25 SO-DIMM Socket
U37 EC JP26 SO-DIMM socket
U39 CODEC
  

64Chapter 5
SW1 Settings (Lid switch)
SW3 Settings(Kill Switch) 
No.Setting
Function 1 NONE 
Function 2 LCD BACKLIGHT OFF
Function 3 STAND BY
Function 4 HIBERNATE
No.Setting
On Wireless On
Bluetooth On
Off Wireless Off
Bluetooth Off