Acer Travelmate 6492 Service Guide

							Chapter 4111
Battery can’t be charged See “Check the Battery Pack” on page 99. 
Battery pack
System board
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 comes from the computer. Audio driver
Speaker
System board
Internal speakers make noise or emit no 
sound.Speaker
System board
Power Management-Related Symptoms
Symptom / ErrorAction in Sequence
The system will not enter hibernation Keyboard (if control is from the keyboard)
Hard disk drive
System board
The system doesnt enter hibernation mode 
and four short beeps every minute.Press Fn+
oand see if the computer enters hibernation mode.
Touchpad
Keyboard
Hard disk connection board
Hard disk drive
System board
The system doesn’t enter standby mode 
after closing the LCDLCD cover switch
System board
The system doesnt resume from 
hibernation mode.Hard disk connection board
Hard disk drive
System board
The system doesnt resume from standby 
mode after opening the LCD.LCD cover switch
System board
Power-Related Symptoms
Symptom / ErrorAction in Sequence 
						

							11 2Chapter 4
Note: If you cannot find a symptom or an error in this list and the problem remains, see “Undetermined  Battery fuel gauge in Windows doesn’t go 
higher than 90%. Remove battery pack and let it cool for 2 hours.
Refresh battery (continue 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
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 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
Keyboard/Touchpad-Related Symptoms
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
Modem-Related Symptoms
Symptom / ErrorAction in Sequence
Internal modem does not work correctly. Modem phone port
modem combo board
System board
Power Management-Related Symptoms
Symptom / ErrorAction in Sequence 
						

							Chapter 411 3
Problems” on page 115. 
						

							11 4Chapter 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 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.  
						

							Chapter 411 5
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 page 99.):
1. Power-off the computer.
2. Visually check them for damage. If any problems are found, replace the FRU.
3. Remove or disconnect all of the following devices:
qNon-Acer devices
qPrinter, mouse, and other external devices
qBattery pack
qHard disk drive
qDIMM 
qCD-ROM/Diskette drive Module
qPC Cards
4. Power-on the computer.
5. Determine if the problem has changed.
6. If the problem does not recur, reconnect the removed devices one at a time until you find the failing FRU.
7. If the problem remains, replace the following FRU one at a time. Do not replace a non-defective FRU:
qSystem board
qLCD assembly 
						

							11 6Chapter 4 
						

							Chapter 511 7
Connector Locations
Top View
ItemNameDescriptionItemNameDescription
1 CN2 S-Video 12 CN34 Bluetooth Cable CNTR
2 CN4 LCM Cable CNTR 13 CN32 Speaker Cable CNTR
3 CN7 3G Card CNTR 14 Jack5 Headphone Jack
4 CN8 Hot Keyboard CNTR 15 Jack3 Line-In Jack
5 CN12 Keyboard FFC CNTR 16 Jack4 MIC Jack
6 CN13 Fine Track FFC CNTR 17 CN27 5 in 1 Card Reader Socket
7 CN18 MIC Cable CNTR 18 CN33 Speaker CAble CNTR
8 CN20 TouchPad FFC CNTR 19 CN24 PCMCIA Socket
9 CN19 SmartCard CAble CNTR 20 CN26 PCMCIA Socket
10 CN28 MDC CNTR 21 CN22 USB
Jumper and Connector Locations
Chapter 5 
						

							11 8Chapter 5
Bottom View
11 CN29 IO Board CNTR 22 D47 IR Receiver
ItemNameDescriptionItemNameDescription
1 Jack500 DC In Jack 11 U512 South Bridge
2 CN500 Serial Port 12 CN515 W/LAN Card CNTR
3 CN501 Fan Cable CNTR 13 CN511 ODD CNTR
4 CN508 1394 14 CN510 HDD CNTR
5 Jack501 Ethernet jack and RJ11 Jack 15 CN507 Second Battery CNTR
6 U507 North Bridge 16 CN506 RTC Battery CNTR
7 U505 CPU Socket 17 CN505 MDC Cable CNTR
8 CN509 MDC Cable CNTR 18 CN504 MainBoard and IO Board CNTR
9 CN512 DIMM Socket 19 CN503 Docking CNTR
10 CN513 DIMM Socket 20 CN502 Battery CNTR
ItemNameDescriptionItemNameDescription 
						

							Chapter 511 9
Connector Pin Definitions
CN4 LCD I/F Connector (40-PIN)
CN20 Touch PAD I/F Connector (12-PIN)
CN12 Keyboard I/F Connector (25-PIN)
PIN No.Signal nameI/OPIN No.Signal nameI/O
1 +V5S - 21 LVDS_TXDL2+ O
2 INV_PWM_3 O 22 GND -
3 +V5S - 23 LVDS_TXDL2- O
4 GND O 24 LVDS_TXDL1+ O
5 BKLTEN O 25 GND -
6 LVDS_TXCU+ O 26 LVDS_TXDL1- O
7 GND - 27 LVDS_TXDL0+ O
8 LVDS_TXCU- O 28 GND -
9 LVDS_TXDU2+ O 29 LVDS_TXDL0- O
10 GND - 30 LCM_DDCPDATA O
11 LVDS_TXDU2- O 31 GND -
12 LVDS_TXDU1+ O 32 NC -
13 GND - 33 LCM_DDCPCLK O
14 LVDS_TXDU1- O 34 +V3S_DSC -
15 LVDS_TXDU0+ O 35 GND -
16 GND - 36 +V3S O
17 LVDS_TXDU0- O 37 USB_PN6 O
18 LVDS_TXCL+ O 38 +V3S_LCM O
19 GND - 39 USB_PP6 O
20 LVDS_TXCL- O 40 +V3S_LCM O
PIN No.Signal nameI/OPIN No.Signal nameI/O
1+5S -7GND -
2+5S -8GND -
3IM_CLOCKO9USB_P5+ I/O
4 IM_DATA O 10 USB_P5- I/O
5IM_CLOCK1O11NC -
6 IM_DATA1 O 12 +V3S -
PIN No.Signal nameI/OPIN No.Signal nameI/O
1 SCAN_IN(0) O 14 SCAN_IN(4) O
2 SCAN_IN(1) O 15 SCAN_OUT(9) O
3 SCAN_IN(2) O 16 SCAN_IN(5) O
4 SCAN_OUT(0) O 17 SCAN_IN(6) O
5 SCAN_OUT(1) O 18 SCAN_OUT(10) O
6 SCAN_OUT(2) O 19 SCAN_OUT(11) O
7 SCAN_IN(3) O 20 SCAN_IN(7) O
8 SCAN_OUT(3) O 21 SCAN_OUT(12) O
9 SCAN_OUT(4) O 22 SCAN_OUT(12) O
10 SCAN_OUT(5) O 23 XSCAN_OUT(14) O 
						

							120Chapter 5
CN27 Cardreader Connector-TD (43-PIN)11 SCAN_OUT(6) O 24 SCAN_OUT(15) O
12 SCAN_OUT(7) O -
13 SCAN_OUT(8) O
PIN No.Signal nameI/OPIN No.Signal nameI/O
1 SD_D2 I/O 23 SD_WP_SM_WPI# I/O
2 GND - 24 GND -
3 SD_D3 I/O 25 GND -
4 +V3S - 26 XD_CD# I/O
5 SD_MS_CLK I/O 27 XD_R_B# I/O
6 SD_CMD I/O 28 XD_RE# I/O
7 MS_D3_XD_D0 I/O 29 XD_CE# I/O
8 GND - 30 XD_CLE I/O
9 MS_CD# I/O 31 XD_ALE I/O
10 MS_D2_XD_D1 I/O 32 XD_WE# I/O
11 +V3S - 33 XD_WPO# I/O
12 MS_D0_XD_D2 I/O 34 GND -
13 MS_D1_XD_D7 I/O 35 MS_D3_XD_D0 I/O
14 SD_MS_CLK I/O 36 MS_D2_XD_D1 I/O
15 MS_S_XD_D3 I/O 37 MS_D0_XD_D2 I/O
16 GND - 38 MS_BS_XD_D3 I/O
17 GND - 39 XD_D4 I/O
18 SD_D0 I/O 40 XD_D5 I/O
19 SD_D1 I/O 41 XD_D6 I/O
20 SD_CD# I/O 42 MS_D1_XD_D7 I/O
21 GND - 43 +V3S -
22 GND -
JACK501 RJ45&RJ11 Connector (14-PIN)
PIN No.Signal nameI/OPIN No.Signal nameI/O
1 MDMTIP O 8 RD- I
2 MDMRNG O 9 D+ I/O
3TD+ O10D- I/O
4TD- OA1+V3M_LAN -
5 RD+ I A2 LAN_MB_LINKLED# I
6 C+ I/O B1 +V3M_LAN -
7 C- I/O B2 LAN_MB_ACTLED# I
CN7 CRT I/F Connector (15-PIN)
PIN No.Signal nameI/OPIN No.Signal nameI/O
1 RED O 9 +V5S_SYNC -
2 GREEN O 10 GND -
3BLUE O11NC -
4 NC - 12 U_CRT_DDCDATA I/O
PIN No.Signal nameI/OPIN No.Signal nameI/O