Toshiba Personal Computer PORTÉGÉ M500 Maintenance Manual
First edition April 2006
Disclaimer
The information presented in this manual has been reviewed and validated for accuracy. The
included set of instructions and descriptions are accurate for the PORTÉGÉ M500 at the time
of this manual's production. However, succeeding computers and manuals are subject to
change without notice. Therefore, Toshiba assumes no liability for damages incurred
directly or indirectly from errors, omissions, or discrepancies between any succeeding
product and this manual.
Trademarks
IBM is a registered trademark and IBM PC is a trademark of International Business
Machines Corporation.
Intel, Intel SpeedStep, Intel Core, Celeron and Centrino are trademarks or registered
trademarks of Intel Corporation or its subsidiaries in the United States and other
countries/regions.
Windows and Microsoft are registered trademarks of Microsoft Corporation.
Photo CD is a trademark of Eastman Kodak.
Bluetooth is a trademark owned by its proprietor and used by TOSHIBA under license.
i.LINK is a trademark of Sony Corporation.
ii [CONFIDENTIAL] PORTÉGÉ M500 Maintenance Manual (960-559)
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Preface
This maintenance manual describes how to perform hardware service maintenance for the
Toshiba Personal Computer PORTÉGÉ M500.
The procedures described in this manual are intended to help service technicians isolate
faulty Field Replaceable Units (FRUs) and replace them in the field.
SAFETY PRECAUTIONS
Four types of messages are used in this manual to bring important information to your
attention. Each of these messages will be italicized and identified as shown below.
DANGER: “Danger” indicates the existence of a hazard that could result in death or
serious bodily injury, if the safety instruction is not observed.
WARNING: “Warning” indicates the existence of a hazard that could result in bodily
injury, if the safety instruction is not observed.
CAUTION: “Caution” indicates the existence of a hazard that could result in property
damage, if the safety instruction is not observed.
NOTE: “Note” contains general information that relates to your safe maintenance
service.
Improper repair of the computer may result in safety hazards. Toshiba requires service
technicians and authorized dealers or service providers to ensure the following safety
precautions are adhered to strictly.
Be sure to fasten screws securely with the right screwdriver. If a screw is not fully
fastened, it could come loose, creating a danger of a short circuit, which could cause
overheating, smoke or fire.
If you replace the battery pack or RTC battery, be sure to use only the same model
battery or an equivalent battery recommended by Toshiba. Installation of the wrong
battery can cause the battery to explode.
PORTÉGÉ M500 Maintenance Manual (960-559) [CONFIDENTIAL] iii
Page 4
The manual is divided into the following parts:
Chapter 1 Hardware Overview describes the PORTÉGÉ M500 system unit and
each FRU.
Chapter 2 Troubleshooting Procedures explains how to diagnose and resolve
FRU problems.
Chapter 3 Test and Diagnostics describes how to perform test and diagnostic
operations for maintenance service.
Chapter 4 Replacement Procedures describes the removal and replacement of the
iv [CONFIDENTIAL] PORTÉGÉ M500 Maintenance Manual (960-559)
Page 5
Conventions
This manual uses the following formats to describe, identify, and highlight terms and
operating procedures.
Acronyms
On the first appearance and whenever necessary for clarification acronyms are enclosed in
parentheses following their definition. For example:
Read Only Memory (ROM)
Keys
Keys are used in the text to describe many operations. The key top symbol as it appears on
the keyboard is printed in boldface type.
Key operation
Some operations require you to simultaneously use two or more keys. We identify such
operations by the key top symbols separated by a plus (+) sign. For example, Ctrl + Pause (Break) means you must hold down Ctrl and at the same time press Pause (Break). If
three keys are used, hold down the first two and at the same time press the third.
User input
Text that you are instructed to type in is shown in the boldface type below:
DISKCOPY A: B:
The display
Text generated by the computer that appears on its display is presented in the type face
below:
Format complete
System transferred
PORTÉGÉ M500 Maintenance Manual (960-559) [CONFIDENTIAL] v
The Toshiba PORTÉGÉ M500 Personal Computer uses advanced Large Scale Integration
(LSI), and Complementary Metal-Oxide Semiconductor (CMOS) technology extensively to
provide compact size, minimum weight, low power usage and high reliability. This computer
incorporates the following features.
There some models and options according to BTO system. Refer to the Parts List for the
configuration of each model and options.
Microprocessor
The PORTÉGÉ M500 computer is equipped with one of the following processors.
Core
TM
Duo
TM
Duo 1.66GHz (Processor Number : T2300)
Intel® Core
1.83GHz (Processor Number : T2400)
2.00GHz (Processor Number : T2500)
2.16GHz (Processor Number : T2600)
2.33GHz (Processor Number : T2700)
Core
TM
Solo
TM
Solo 1.66GHz (Processor Number : T1300)
Intel® Core
1.83GHz (Processor Number : T1400)
Intel® Celeron® M
Celeron® M1.46GHz (Processor Number : 410)
1.60GHz (Processor Number : 420)
1.73GHz (Processor Number : 430)
Chipset
Equipped with Intel 945GM/940GML as North Bridge, Intel ICH7-M as South Bridge
and Texas Instrument PCI7412 as Card Controller.
VGA Controller
An internal Graphics Controller in North Bridge is used.
Two DDR2-533/DDR2-667 SDRAM slots. Memory modules can be installed to provide
a maximum of 4GB (Intel 945GM) or 2GB (Intel 940GML). Memory modules are
available in 256MB, 512MB, 1024MB and 2048MB sizes.
HDD
The computer has a 2.5-inch SATA HDD. The following capacities are available.
•40/60/80/100/120 GB
USB FDD
A 3.5-inch USB FDD accommodates 2HD (1.44MB) or 2DD (720KB) disks.
Optical Drive
DVD-ROM&CD-R/RW drive or DVD Super Multi drive (double layer) can be installed.
External monitor : Supported via an RGB connector.
Keyboard
An-easy-to-use 84(US)/85(UK)-key keyboard provides a numeric keypad overlay for fast
numeric data entry or for cursor and page control. The keyboard also includes two keys
that have special functions in Microsoft
®
Windows® 2000/XP. It supports software that
uses a 101- or 102-key enhanced keyboard.
Touch pad
A Touch Pad and control buttons in the palm rest enable control of the on-screen pointer
and scrolling of windows.
Batteries
The computer has two batteries: a rechargeable Lithium-Ion main battery pack and RTC
battery (that backs up the Real Time Clock and CMOS memory).
Three USB ports are provided. The ports comply with the USB2.0 standard.
IEEE 1394 port
The computer comes with one IEEE 1394 port. It enables high-speed data transfer
directly from external devices such as digital video cameras.
External monitor (RGB) port
The port enables connection of an external monitor, which is recognized automatically by
Video Electronics Standards Association (VESA) Display Data Channel (DDC) 2B
compatible functions.
PC card slot
A PC card slot is provided. The PC card slot (PCMCIA) accommodates one Type II card.
Bridge media slot
This supports one SD memory card/SDIO card/Memory stick/Memory stick PRO/xD
picture card/MultiMediaCard slot. Data can be read and written by inserting each media
to the slot.
Fingerprint sensor
The computer is equipped with a fingerprint sensor and fingerprint authentication utility.
They enable only person who has registered his/her fingerprint to use the computer.
Sound system
The sound system is equipped with the following features:
The computer contains a MDC, enabling data and fax communication. It supports ITU-T
V.90 (V.92). The transfer rates are 56 Kbps for data reception, 33.6 Kbps for data
transmission, and 14,400 bps for fax transmission. However, the actual speed depends on
the line quality. The RJ11 modem jack is used to accommodate a telephone line. Both of
V.90 and V.92 are supported only in USA, Canada and Australia. Only V.90 is available
in other regions.
Internal LAN
The computer has built-in support for Ethernet LAN (10 megabits per second, 10BASET), Fast Ethernet LAN (100 megabits per second, 100BASE-TX) and Gigabit Ethernet
LAN (1000 megabits per second, 1000BASE-T). It also supports Wakeup on LAN
(WOL), Magic Packet and LED. Some models are not equipped with a Gigabit Ethernet
LAN.
Wireless LAN
The computer is equipped with PCI Express Mini Card type wireless LAN card that
supports 802.11 b/g or 802.11 a/b/g in the PCI Express MiniCard slot. This function can
be switched on and off by a switch on the computer.
Bluetooth
The computer is equipped with Bluetooth (V2.0+EDR) communications standard enable
wireless connection between electronic devices such as computers and printers.It
supports wireless communication switch.
Presentation button
This button switches the display between internal display, external display, simultaneous
display and multi-monitor display.
TOSHIBA Assist button
When this button is pressed during power-on, the PC is connected to “Toshiba Assist”.
When this button is pressed during power-off, the PC is turned on and connected to
“Toshiba Assist”.
Two memory slots capable of accepting DDR2-SDRAM 256MB, 512MB, 1024MB or
2048MB memory modules for a maximum of 4GB (Intel 945GM) or 2GB (Intel
940GML).
• 200-pin Small Outline DIMM
• 1.8V operation
• PC2-4200(DDR2-533)/PC2-5300(DDR2-667) support
Serial Peripheral Interface (SPI)
• One STMicro M25PE80-VMW6TG is used.
• 8Mbits of flash memory are used.
– 320KB for System BIOS
– 64KB for VGA BIOS
– 64KB for Finger Print PBA
– 128KB for LAN BIOS
– 24KB for Boot
– 16KB for Parameter Block
– 32KB for Option Log
– Others
North Bridge
• One Intel 945GM/940GML is used.
• Features:
– Supports Yonah Processor System Bus
– Supports System Memory : DDR2-400/DDR2-533/DDR2-667,
4GB (Intel 945GM) (max) or 2GB (Intel 940GML) (max)
• Intel made Ethernet LAN (10 megabits per second, 10BASE-T), Fast Ethernet LAN
(100 megabits per second, 100BASE-TX) or Gigabit Ethernet LAN (1000 megabits
per second, 1000BASE-T) is used. Some models are not equipped with a Gigabit
Ethernet LAN.
• This controller has the following functions:
– PCI-Ex connection
– Supports Gigabit Ethernet
– Supports Fast Ethernet
– One RJ45 port
– Supports WOL
– Supports Magic Packet
– Supports LED
– Makes LAN to “Disable” in BIOS
The removable HDD is a random access non-volatile storage device. It has a non-removable
2.5-inch magnetic disk and mini-Winchester type magnetic heads.
The computer supports a 40GB, 60GB, 80GB, 100GB or 120GB.
The HDD is shown in figure 1-4. Specifications are listed in Table 1-1.
The keyboard is mounted 84(US)/85(UK) keys that consist of character key and control key.
The keyboard is connected to membrane connector on the system board and controlled by the
keyboard controller.
Figure 1-5 is a view of the keyboard.
See Appendix E about a layout of the keyboard.
The DVD Super Multi drive accommodates either 12 cm (4.72-inch) or 8 cm (3.15-inch)
CD-ROM, DVD-ROM, CD-R, CD-RW, DVD-R, DVD+R, DVD-RW, DVD+RW, DVDRAM, DVD-R DL and DVD+R DL.
The specifications are listed in Table 1-3.
Table 1-3 DVD Super Multi drive specifications
Specifications Item
MATSUSHITA G8CC00030120
Outline
dimensions
Data transfer speed (Read)
DVD-ROM
CD-ROM
Data transfer speed (Write)
CD-R
CD-RW
High Speed CD-RW
Ultra Speed CD-RW
DVD-R
DVD-R DL
DVD-RW
DVD+R
DVD+R DL
DVD+RW
DVD-RAM
ATAPI Burst (MB/s)
PIO Mode
DMA Mode
Ultra DMA Mode
The TFT color display consists of 12.1-inch WXGA LCD module and FL inverter board.
1.5.1 LCD Module
The LCD module used for the TFT color display uses a backlight as the light source and can
display a maximum of 16M colors with 1,200 x 800 resolution. The GPU in North Bridge
can control internal and external WXGA support displays simultaneously.
Figure 1-6 shows a view of the LCD module and Table 1-4 lists the specifications.
Figure 1-6 LCD module
Table 1-4 LCD module specifications
Specifications
Item
12.1-inch WXGA TFT (TMD G33C0003C110)
Number of Dots 1,280(W) x 800(H)
Dot spacing (mm) 0.204(H) x 0.204(V)
Display range (mm) 275.8(H) x 178.0(V)
Specifications
Item
12.1-inch WXGA TFT (SAMSUNG G33C0003K110)
Number of Dots 1,280(W) x 800(H)
Dot spacing (mm) 0.204(H) x 0.204(V)
Display range (mm) 275.8(H) x 178.0(V)
The computer has two types of batteries as follows:
Main battery
Real Time Clock (RTC) battery
The battery specifications are listed in Table 1-7.
Table 1-7 Battery specifications
Battery name Material Output voltage Capacity
Main battery
RTC battery GDM710000041 Ni-MH 2.4 V 15 mAh
G71C0004G710
G71C0004G810
Li-Ion 10.8 V 4,700 mAh
1.7.1 Main Battery
The removable main battery pack is the computer’s main power source when the AC adaptor
is not attached. The main battery maintains the state of the computer when the computer
enters in resume mode.
Battery Charge
When the AC adapter is connected, normal charging is used while the system is turned on
and quick charge is used while the system is turned off. Table 1-8 lists the charging time
required for charges.
Table 1-8 Time required for charges
Battery type Power on (hours) Power off (hours)
Main battery (4,700 mAh) About 5.5 to 12.0 About 3.0
Charge is stopped in the following cases.
1. The main battery is fully charged.
2. The main battery is removed.
3. Main battery or AC adapter voltage is abnormal.
When turning off the power in being charged fully, the preservation time is as following
Table 1-9.
Table 1-9 Data preservation time
Battery type Standby mode Boot mode
Main battery (4,700 mAh) 6 days 60 days
1.7.2 RTC battery
The RTC battery provides power to keep the current date, time and other setup information
in memory while the computer is turned off. Table 1-10 lists the charging time and data
preservation period of the RTC battery.
Table 1-10 RTC battery charging/data preservation time
Status Time
Charging Time (power on) 8 hours
Data preservation period (full charge) 30 days
The AC adapter is used to charge the battery.
Table 1-11 lists the AC adapter specifications.
Table 1-11 AC adapter specifications
Parameter Specification
G71C0002SC10 G71C0004A510
Power 60W (Peak 75W)
Input voltage 100V/240V
Input frequency 50Hz to 60Hz
Input current 1.5A or less (100V-240V 4Aload)
Output voltage 15V
Output current 0A to 4A (At constant voltage mode)
Parameter Specification
G71C00043310 G71C00049510
Power 75W (Peak 90W)
Input voltage 100V/240V
Input frequency 50Hz to 60Hz
Input current 1.5A or less (100V-240V)
Output voltage 15V
Output current 0A to 5A (At constant voltage mode)
If the diagnostics program cannot detect an error, the problem may be intermittent. The
Running Test program should be executed several times to isolate the problem. Check the
Log Utilities function to confirm which diagnostic test detected an error, then perform the
appropriate troubleshooting procedures as follows:
1. If an error is detected on the system test, memory test, display test, CD-ROM/DVD-
ROM test, expansion test, real timer test, Sound/LAN/Modem test, Bluetooth test or
IEEE1394 test, perform the System Board Troubleshooting Procedures in Section 2.4.
2. If an error is detected on the floppy disk test, perform the USB FDD Troubleshooting
Procedures in Section 2.5.
3. If an error is detected on the hard disk test, perform the HDD Troubleshooting
Procedures in Section 2.6.
4. If an error is detected on the keyboard test (DIAGNOSTICS TEST) and pressed key
display test (ONLY ONE TEST), perform the Keyboard/Touch pad Troubleshooting
Procedures in Section 2.7.
5. If an error is detected on the display test, perform the Display Troubleshooting
Procedures in Section 2.8.
6. If an error is detected on the CD-ROM/DVD-ROM test, perform the Optical Drive
Troubleshooting Procedures in Section 2.9.
7. If an error is detected on the modem test, perform the Modem Troubleshooting
Procedures in Section 2.10.
8. If an error is detected on the LAN test, perform the LAN Troubleshooting Procedures
in Section 2.11.
9. If an error is detected on the Bluetooth test, perform the Bluetooth Troubleshooting
Procedures in Section 2.12.
10. If an error is detected on the Wireless LAN test, perform the Wireless LAN
Troubleshooting Procedures in Section 2.13.
11. If an error is detected on the Sound test, perform the Sound Troubleshooting
Procedures in Section 2.14.
12. If a malfunction is detected on Bridge media, perform the Bridge media slot
Troubleshooting Procedures in Section 2.15.
13. If a malfunction is detected on Fingerprint sensor, perform the Fingerprint sensor
2.3 Power Supply Troubleshooting 2 Troubleshooting Procedures
2.3 Power Supply Troubleshooting
The power supply controls many functions and components. To determine if the power
supply is functioning properly, start with Procedure 1 and continue with the other Procedures
as instructed. The procedures described in this section are:
The following Icons in the LCD indicate the power supply status:
Battery icon
DC IN icon
The Power Supply Controller (PSC) displays the power supply status through the Battery
icon and the DC IN icon in the LCD as listed in the tables below. To check the power supply
status, install a battery pack and connect an AC adaptor.
Table 2-1 Battery icon
Battery icon Power supply status
Lights orange Battery is charged and the external DC is input. It has no
relation with ON/OFF of the system power.
Lights Blue Battery is fully charged and the external DC is input. It has
no relation with ON/OFF of the system power.
Blinks orange
(even intervals)
Blinks orange once
(at being switched on)
Doesn’t light Any condition other than those above.
The battery level is low while the system power is ON.
The system is driven by only a battery and the battery level
is low.
2 Troubleshooting Procedures 2.3 Power Supply Troubleshooting
Table 2-2 DC IN icon
DC IN icon Power supply status
Lights Blue DC power is being supplied from the AC adapter.
Flashes orange There is a problem with the power supply. *1
Doesn’t light Any condition other than those above.
*1 When the Power Supply Controller (PSC) detects a malfunction, the DC IN icon blinks
orange. It shows an error code.
When the icon is blinking, perform the following procedure.
1. Remove the battery pack and the AC adapter.
2. Re-attach the battery pack and the AC adapter.
If the icon is still blinking after the operation above, check the followings:
Check 1 If the DC IN icon blinks orange, go to Procedure 2.
Check 2 If the DC IN icon does not light, go to Procedure 3.
Check 3 If the battery icon does not light orange or blue, go to Procedure 4.
NOTE: Use a supplied AC adapter G71C0002SC10, G71C00043310 (2-pin)/
2.3 Power Supply Troubleshooting 2 Troubleshooting Procedures
Procedure 2 Error Code Check
If the power supply microprocessor detects a malfunction, the DC IN icon blinks orange. The
blink pattern indicates an error as shown below.
Start Off for 2 seconds
Error code (8 bit)
“1” On for one second
“0” On for half second
Interval between data bits Off for half second
The error code begins with the least significant digit.
Example: Error code 11h (Error codes are given in hexadecimal format.)
2.3 Power Supply Troubleshooting 2 Troubleshooting Procedures
Compare the patterns in the hexadecimal error code to the tables below.
AC Adaptor
Error code Meaning
10h AC Adaptor output voltage is over 16.5V.
11h CommonDock voltage is over 16.5V.
12h Current from the DC power supply is over 7.00A.
13h Current from the DC power supply is over 0.5A when there is no loa d.
14h Correction value of 0[A] is out of designed value.
1st Battery
Error code Meaning
22h 1st battery discharge current over 0.5A when there is no load.
23h 1st battery charge current is over 3.9A in charging.
2nd Battery
24h Correction value of 0[A] is out of designed value.
25h 1st battery charge current is over 0.3A in not charging.
Error code Meaning
32h 2nd battery discharge current is over 0.5A when the re is no load.
33h 2nd battery charge current is over 3.9A in charging.
34h Correction value of 0[A] is out of designed value.
35h 2nd battery charge current is over 0.3A in not charging.
2 Troubleshooting Procedures 2.3 Power Supply Troubleshooting
S3V output
Error code Meaning
40h S3V voltage is 3.47V or less when the computer is powered on/off.
45h S3V voltage is under 3.14V in normal conditions.
46h S3V voltage is under 3.14V when the computer is bo oting up.
E5V output
Error code Meaning
50h E5V voltage is over 6.00V when the computer is powered on/off.
51h E5V voltage is under 4.50V when the computer is po wered on.
52h E5V voltage is under 4.50V when the computer is bo oting up.
54h E5V voltage is under 4.50V when EV power is maintained.
E3V output
Error code Meaning
60h E3V voltage is over 3.96V when the computer is powered on/off.
61h E3V voltage is under 2.81V when the computer is po wered on.
62h E3V voltage is under 2.81V when the computer is bo oting up.
64h E3V voltage is under 2.81 V when EV power is maintained.
1R5-E1V output
Error code Meaning
70h 1R5-E1V voltage is over 1.80V when the computer is powered on/off.
71h 1R5-E1V voltage is under 1.275V when the computer is powered on.
72h 1R5-E1V voltage is under 1.275V when the com puter is booting up.
74h 1R5-E1V voltage is under 1.275V when EV power is maintained.
2.3 Power Supply Troubleshooting 2 Troubleshooting Procedures
1R8-B1V output
Error code Meaning
80h 1R8-B1V voltage is over 2.16V when the computer is powered on/off.
81h 1R8-B1V voltage is under 1.53V when the computer is powered on.
82h 1R8-B1V voltage is under 1.53V when the computer is booting up.
84h 1R8-B1V voltage is under 1.53V when BV power is maintained.
PPV output
Error code Meaning
90h PPV voltage is over 1.80V when the computer is powered on/off.
91h PPV voltage is under 0.32V when the computer is powered on.
92h PPV voltage is under 0.32V when the computer is booting up.
PTV output
Error code Meaning
1R5-E1V output
Error code Meaning
A0h PTV voltage is over 1.26V when the computer is powered on/off.
A1h PTV voltage is under 0.89V when the computer is powered on.
A2h PTV voltage is under 0.89V when the computer is booting up.
B0h 1R5-E1V voltage is over 1.80V when the computer is powered on/off.
B1h 1R5-E1V voltage is under 1.275V when the computer is powered on.
B2h 1R5-E1V voltage is under 1.275V when the computer is booting up.
B3h 1R5-E1V voltage is under 1.275V when EV power is maintained.
2 Troubleshooting Procedures 2.3 Power Supply Troubleshooting
1R8-B1V output
Error code Meaning
C0h 1R8-B1V voltage is over 2.16V when the computer is powered on/off.
C1h 1R8-B1V voltage is under 1.53V when the computer is powered on.
C2h 1R8-B1V voltage is under 1.53V when the computer is booting up.
C4h 1R8-B1V voltage is under 1.53V when BV power is maintained.
PPV output
Error code Meaning
D0h PPV voltage is over 1.80V when the computer is powered on/off.
D1h PPV voltage is under 0.32V when the computer is powered on.
D2h PPV voltage is under 0.32V when the computer is booting up.
PTV output
Miscellaneous
Error code Meaning
E0h PTV voltage is over 1.26V when the computer is powered on/off.
E1h PTV voltage is under 0.89V when the computer is powered on.
E2h PTV voltage is under 0.89V when the computer is booting up.
2 Troubleshooting Procedures 2.3 Power Supply Troubleshooting
Procedure 5 Replacement Check
The system board processor module may be disconnected or damaged. Disassemble the
computer following the steps described in Chapter 4, Replacement Procedures. Check the
connection between the AC adaptor and system board and connection. After checking the
connections, perform the following Check 1:
When AC adapter is connected:
Check 1 AC adapter may be faulty. Replace the AC adapter with a new one. If the problem
still occurs, perform Check 2.
Check 2 System board may be faulty. Replace the system board with a new one.
When AC adapter is not connected:
(When driving with battery pack)
Check 1 Battery pack may be faulty. Replace it with a new one. If the problem still occurs,
perform Check 2.
Check 2 System board may be faulty. Replace it with a new one.
2.4 System Board Troubleshooting 2 Troubleshooting Procedures
2.4 System Board Troubleshooting
This section describes how to determine if the system board and CPU are defective or not
functioning properly. Start with Procedure 1 and continue with the other procedures as
instructed.
The procedures described in this section are:
Procedure 1: Message Check
Procedure 2: Debugging Port Check (Boot Mode)
Procedure 3: Diagnostic Test Program Execution Check
Procedure 4: Replacement Check
2 Troubleshooting Procedures 2.4 System Board Troubleshooting
Procedure 1 Message Check
When the power is turned on, the system performs the Initial Reliability Test (IRT) installed
in the BIOS ROM. The IRT tests each IC on the system board and initializes it.
If an error message is shown on the display, perform Check 1.
If there is no error message, go to Procedure 2.
If Toshiba MS-DOS or Windows XP is properly loaded, go to Procedure 3.
Check 1 If one of the following error messages appears on the screen, press F1 as the
message instructs. These errors occur when the system configuration preserved in
the RTC memory (CMOS type memory) is not the same as the actual
configuration or when the data is lost.
If you press F1 as the message instructs, returns all system settings to their default
values. Then the system reboots.
If error message (b) appears often when the power is turned on, replace the RTC
battery. If any other error message displays, perform Check 2.
(a) *** Bad HDD type ***
Check system. Then press [F1] key ......
(b) *** RTC battery is low or CMOS checksum is
inconsistent ***
Press [F1] key to set Date/Time ......
(c) *** Bad configuration ***
Check system. Then press [F1] key ......
(d) *** Bad memory size ***
Check system. Then press [F1] key ......
(e) *** Bad time function ***
Check system. Then press [F1] key ......
(g) *** Bad check sum (ROM) ***
Check system. Then press [F1] key ......
Check 2 If the following error message is displayed on the screen, press any key as the
message instructs.
The following error message appears when data stored in RAM under the resume
function is lost because the battery has become discharged or the system board is
damaged. Go to Procedure 3.
WARNING: RESUME FAILURE.
PRESS ANY KEY TO CONTINUE.
If any other error message displays, perform Check 3.
2.4 System Board Troubleshooting 2 Troubleshooting Procedures
Table 2-4 Debug port (Boot mode) error status (1/10)
D port statusInspection items Details
Boot block
F000H
F001H
Permission of A20 and Clear of
software reset bit
Prohibition of APIC
Initialization of MCH and ICH
Initialization of Super I/O
Initialization of debug port
Dummy read of 3rd Bus data
Setting of printer port
BTBK_START
Only PIT CH0 initialization
(for HOLD_ON)
BIOS rewrite factor flag initialization
CHECK SUM CHECK
BTBK_CALC_CHKSUM_END
Transition to protected mode
Boot block checksum (skip when returned to S3)
(halts when error)
Checksum other than boot block (skip when
returned to S3)
F003H
F004H
F007H
EC/KBC rewrite check If “rewrite” is requested, go to “BIOS rewrite
process”
Key input
When a key is pressed, check if it is
Tilde key or Tab key
BTBK_INI_SC_START F002H
Initialization of SC
BTBK_INI_SC_ERR
BTBK_SC_HW_FAILURE
BTBK_INI_KBC_END
BIOS rewrite request check If Checksum check error occurred on except
BTBK_ENTER_CHK_BIOS_SIGN
BIOS signature check
BTBK_ENTER_SYSTEM_BIOS
Transits to System BIOS IRT
BIOS rewrite process Initialization of ICHM. D31
2.4 System Board Troubleshooting 2 Troubleshooting Procedures
Table 2-4 Debug port (Boot mode) error status (3/10)
D port statusInspection items Details
F100H
Initialization of H/W (before DRAM
F101H
IRT_START
Process of cache control for
HyperThreading
Prohibition of cache
Initialization of MCHM
recognition)
Initialization of ICH4M.D31.Func0
Initialization of ICH4M.D31.Func1
Initialization of USB.Func0,1,2,7
Initialization of ICH4M.D31.Func3
Initialization of ICH4M.D31.Func5
Initialization of FLUTE
Initialization of PIT channel 1
IRT_INI_SPREG_END
Check of DRAM type and size
(at cold boot)
(Setting the refresh interval to “30μs”)
When unsupported memory is connected,
becoming HLT after beep sound (HLT when
DRAM size is 0)
F102H
F103H
SM-RAM stack area test HLT When it can not be used as a stack
Cache configuration
Cache permission (L1/L2 Cache)
CMOS access test (at cold boot) (HLT when an error is detected)
Battery level check of CMOS
CMOS checksum check
Initialization of CMOS data (1)
Setting of IRT status
Storing DRAM size in CMOS
Cache configuration
IRT_RSM_BRANCH
Resume branch (at cold boot)
(Setting of boot status and IRT busy flag, The rest
bits are 0)
Not resume when a CMOS error occurred
Not resume when resume status code is not set
Resume error check
S3 returning error (ICH)
2.4 System Board Troubleshooting 2 Troubleshooting Procedures
Table 2-4 Debug port (Boot mode) error status (5/10)
D port statusInspection items Details
F106H
IRT_INI_SMBASE_END
Initialization of devices which
need initialization before PCI bus
initialization
PIT test (Cold boot only) and initialization
Setting of test pattern to channel 0 of PIT#0
Check whether the set test pattern can be read
Initialization of PIT channel 0
(Setting of timer interruption interval to 55ms)
Initialization of PIT channel 2
(Setting of the sound generator frequency to 664Hz)
Test of PIT channel 1
(Check whether the refresh signal works normally in
30 micro-s refresh interval) HLT, when the time is out
Test of PIT channel 2
(Check whether the speaker gate works normally)
CPU clock measurement
Check of parameter block A
Permission of SMI except auto-off function
Control of excess of rated input power
Battery discharging current control (1CmA)
AC adapter rated over current control
F107H
Dividing procedures for time measuring by IRT
Setting for clock generator
CPU Initialization
Judgment of CPU type
Check of supporting Geyserville
Make CPU clock High
Setting of Graphics Aperture Size
IRT_CHK_INI_SYS1_END
Saving memory configuration to
buffer
Reading of EC version
Update of flash ROM type
Judging of destination (Japan or
2 Troubleshooting Procedures 2.4 System Board Troubleshooting
Table 2-4 Debug port (Boot mode) error status (6/10)
D port statusInspection items Details
(F107H)
F108H
F109H
Initialization of devices which need
initialization before PCI bus
initialization
PIC initialization
PIC test
Password Initialization
IRT_CHK_INI_SYS2_END
PCI bus initialization (conn ection of DS Bus)
Initialization of LAN information
Check of WakeUp factor
IRT_INI_PCI_END
Task generation for waiting
INIT_PCI completion
AC97’ control
Initialization of temperature control information
KBC initialization
VGA display off, Reset control
Sound initialization
PC multi-box status acquisition
HC initialization, USB device connection
recognition and initialization
Control of built-in LAN permission/prohibition
F10AH
CMOS data initialization (2)
PnP initialization
Setting of setup items
Waiting for the completion of Multibox status check
H/W setting based on resource
IRT_MK_SYSRES_END
Task generation for waiting PnP
resource making completion
Control of serial interrupt (Execute
before using interrupt)
PnP H/W initialization PC card slot initialization
SIO initialization (for models supporting SIO)
FIR initialization (for models supporting FIR)
PCI automatic configuration Making of work for automatic configuration
Acquisition of PCI IRQ
2.4 System Board Troubleshooting 2 Troubleshooting Procedures
Table 2-4 Debug port (Boot mode) error status (7/10)
D port statusInspection items Details
(F10AH)
F10BH
F10CH
F10DH
F10EH
IRT_PCI_CONF_END
Initialization of H/W needed after
PCI configuration
Enabling power off
Output code generation
IRT_CHK_INI_SYS3_END
FIRST_64KB_CHECK
IRT_CHK_F64KB_END
INIT_INT_VECTOR (Initialization of vectors)
IRT_INI_VECT_END
INIT_NDP
Configuration
Saving of VGA configuration result
Task generation for waiting PCI_CONFIGURATION
completion
Printer port setting (for models supporting printer)
HDD initialization sequence start
FDD initialization sequence start (for models
supporting printer internal FDD)
(Check of first 64KB memory)
(Initialization of NDP)
F10FH
F110H
F111H
F112H IRT_VGA_POST_END
F113H
IRT_INI_NDP_END
INIT_SYSTEM
(Initialization of system)
IRT_INI_SYS_END
INIT_DISPLAY (Waiting for VGA chip initialization completion, VGA
(Check of password)
Waiting for FDD initialization completion
(In the case of “Reboot”)
Waiting for HDD initialization completion
Check of key input during IRT (waiting for KBC
initialization completion)
Initialization of ATA priority
(In the case of “Boot”)
BM loading process (for models supporting
fingerprint authentication)
Initialization of BM (for models supporting
fingerprint authentication)
Check of key input during IRT (waiting for KBC
Saving of value in 40:00h
(for SIO saving/restoring)
Setting of font address for resume password
Setting of repeat parameter for USB KB
Final check of key input during IRT
Storing of T_SHADOW_RAM_SIZE
Update of system resource just before booting
Rewriting of memory map data of INT15h E820h
function
Waiting for AC-Link initialization completion
Renewal of table for DMI
Copying ACPI table to uppermost of extension
memory
Waiting for completion of setting clock generator
When error occurred, halt at F121
IRT_CLOCK_GENERATOR_ERR
Waiting for completion of initialization of Serial
port (for models supporting SIO)
Cancel of NMI Mask
TIT check sum
Clear of the IRT flag of Runtime side
Update of check sum of Runtime side
Hibernation branch (for models supporting BIOS
Hibernation)
Initialization of Bluetooth (for models supporting
Bluetooth)
Check for existence of target maintenance card
Prohibition of unused PC card not used
Setting Wakeup status data for ACPI
HW initialization just before booting, Waiting for
2 Troubleshooting Procedures 2.4 System Board Troubleshooting
Table 2-4 Debug port (Boot mode) error status (10/10)
D port statusInspection items Details
F122H
F123H
F124H
IRT_SC_INIT_START
IRT_PRE_BOOT_SETUP_END
Notifies the DVI connection status to VGA BIOS (for
models supporting DVI)
Setting of battery save mode
Setting of date
Waiting for Bluetooth initialization completion
(for models supporting Bluetooth)
Update of DMI Wakeup factor, Update of SM-BIOS
structure table
PCI device configuration space close
Cache control
Renewal of parameter block A
Process for CPU
Waiting of motor-off completion of disabled HDD
Final decision of USB FDD drive information
Post processing of PRE_BOOT_SETUP
Clear of PWRBTN_STS
Enabling POWER Button
Make the CPU clock to be set by SETUP
F125H
FFFFH
IRT_WAIT_DISP_LOGO_START
Clear of IRT status
Renewal of check sum of
Runtime side
IRT_POST_END
NOTE: Status outputted by the test means the last error detected in the debug port test.
2 Troubleshooting Procedures 2.4 System Board Troubleshooting
Procedure 3 Diagnostic Test Program Execution Check
Execute the following tests from the Diagnostic Test Menu. Refer to Chapter 3, Tests and
Diagnostics, for more information on how to perform these tests.
1. System test
2. Memory test
3. Keyboard test
4. Display test
5. Floppy Disk test
6. Async test
7. Hard Disk test
8. Real Timer test
9. NDP test
10. Expansion test
11. CD-ROM/DVD-ROM test
12. Only One test
13. Wireless LAN test
14. Sound test
15. LAN/Modem/Bluetooth/IEEE1394 test
If an error is detected during these tests, go to Procedure 4.
2.4 System Board Troubleshooting 2 Troubleshooting Procedures
Procedure 4 Replacement Check
The system board connectors may be disconnected. Disassemble the computer following the
steps described in Chapter 4, Replacement Procedures and perform Check 1.
Check 1 Visually check for the following:
a) Cracked or broken connector housing
b) Damaged connector pins
If their connectors are in good condition, but there is still a problem, go to Check
2.
Check 2 The system board may be damaged. Replace the system board with a new one
following the steps described in Chapter 4, Replacement Procedures.
2 Troubleshooting Procedures 2.5 USB FDD Troubleshooting
2.5 USB FDD Troubleshooting
This section describes how to determine if the USB FDD is functioning properly. Perform
the steps below starting with Procedure 1 and continuing with the other procedures as
required.
Procedure 1: USB FDD Head Cleaning Check
Procedure 2: Diagnostic Test Program Execution Check
Procedure 3: Connector Check and Replacement Check
Procedure 1 USB FDD Head Cleaning Check
USB FDD head cleaning operation details are given in Chapter 3, Tests and Diagnostics.
Connect a USB floppy disk drive to a computer and insert the Diagnostics Disk in the USB
floppy disk drive, turn on the computer and run the test. Clean the USB FDD heads using the
cleaning kit. If the USB FDD still does not function properly after cleaning, go to Procedure
2.
If the test program cannot be executed, go to Procedure 3.
2.5 USB FDD Troubleshooting 2 Troubleshooting Procedures
Procedure 2 Diagnostic Test Program Execution Check
Insert the Diagnostics Disk in the USB FDD, turn on the computer and run the test. Refer to
Chapter 3, Tests and Diagnostics, for more information about the diagnostics test procedures.
Floppy disk drive test error codes and their status names are listed in Table 2-5. Make sure
the floppy disk is formatted correctly and that the write protect tab is disabled. If any other
errors occur while executing the FDD diagnostics test, go to Check 1.
Table 2-5 FDD error code and status
Code Status
01h Bad command error
02h Address mark not found
03h Write protected
04h Record not found
06h Media removed
08h DMA overrun error
09h DMA boundary error
10h CRC error
20h FDC error
40h Seek error
60h Not drive error
80h Time out error
EEh Write buffer error
FFh Data compare error
Check 1 If the following message appears, disable the write protect tab on the floppy disk.
If any other message appears, perform Check 2.
Write protected
Check 2 Make sure the floppy disk is formatted correctly. If it is, go to Procedure 3.
2 Troubleshooting Procedures 2.5 USB FDD Troubleshooting
Procedure 3 Connector Check and Replacement Check
The USB FDD is connected to the System Board.
Check 1 When using the USB port, make sure the USB FDD cable is firmly connected to
CN4612 or CN4614 on the System.
If any of the connections are loose, reconnect firmly and repeat Procedure 2.
If any of the connections is damaged, or there is still an error, go to Check 2.
Check 2 The USB FDD or USB FDD cable may be defective or damaged. Replace it with
a new one. If the USB FDD is still not functioning properly, perform Check 3.
Check 3 Replace the System board with a new one following the steps in Chapter 4,
This section describes how to determine if the HDD is functioning properly. Perform the
steps below starting with Procedure 1 and continuing with the other procedures as required.
Procedure 1: Partition Check
Procedure 2: Message Check
Procedure 3: Format Check
Procedure 4: Diagnostic Test Program Execution Check
Procedure 5: Connector Check and Replacement Check
CAUTION: The contents of the hard disk will be erased when you execute the HDD
troubleshooting procedures. Transfer the contents of the hard disk to floppy
disks or other storage media.
Procedure 1 Partition Check
Insert the Toshiba MS-DOS system disk and restart the computer with U key holding down.
Perform the following checks:
Check 1 Type C: and press Enter. If you cannot change to drive C, go to Check 2. If you
can change to drive C, go to Check 3.
Check 2 Type FDISK and press Enter. Choose Display Partition Information from the
FDISK menu. If drive C is listed, go to Check 3. If drive C is not listed, return to
the FDISK menu and choose the option to create a DOS partition on drive C.
Restart the computer from the Toshiba MS-DOS system disk. If the problem still
exists, go to Procedure 2.
Check 3 If drive C is listed as active in the FDISK menu, go to Check 4. If drive C is not
listed as active, return to the FDISK menu and choose the option to set the active
partition for drive C. Restart the computer and then go to Procedure 2.
Check 4 Remove the FD and restart the computer. If the problem still exists, go to
When the power is turned on, the system performs the Initial Reliability Test (IRT) installed
in the BIOS ROM. When the test detects an error, an error message is displayed on the
screen.
Make sure no floppy disk is in the USB FDD. Turn on the computer and check the message
on the screen. When an OS starts from the 2.5” HDD, go to Procedure 3. Otherwise, start
with Check 1 below and perform the other checks as instructed.
Check 1 If any of the following messages appear, go to Procedure 3. If the following
messages do not appear, perform Check 2.
Built-in HDD ERROR (After 5 seconds this message will disappear.)
or
CD-ROM ERROR (After 5 seconds this message will disappear.)
Check 2 If either of the following messages appears, go to Check 3. If the following
messages do not appear, perform Check 4.
Insert system disk in drive
Press any key when ready .....
or
Non-System disk or disk error
Replace and press any key when ready
Check 3 Using the SYS command of the MS-DOS, transfer the system to the 2.5” HDD. If
the system is not transferred, go to Procedure 3. Refer to the MS-DOS Manual for
detailed operation.
If the following message appears on the display, the system program has been
transferred to the HDD.
System Transferred
If an error message appears on the display, perform Check 4.
Check 4 2.5” HDD(s) and the connector(s) of system board may be defective (Refer to the
steps described in Chapter 4, Replacement Procedures for disassembling.). Insert
HDD(s) to the connector(s) firmly. If it is (or they are) firmly connected, go to
Procedure 3.
The computer’s HDD is formatted using the MS-DOS FORMAT program or the physical
format program of the test program. To format the HDD, start with Check 1 below and
perform the other steps as required.
Refer to the MS-DOS Manual for the operation of MS-DOS. For the format by the test
program, refer to the Chapter 3.
Check 1 Format the 2.5” HDD using MS-DOS FORMAT command. Type as FORMAT
C: / S/U.
If the 2.5” HDD can not be formatted, perform Check 2.
Check 2 Using the MS-DOS FDISK command, set the 2.5” HDD partition. If the partition
is not set, go to Check 3. If it is set, format the 2.5” HDD using MS-DOS
FORMAT command.
Check 3 Using the Diagnostic Disk, format the 2.5” HDD with a format option (physical
format). If HDD is formatted, set the 2.5” HDD partition using MS-DOS FDISK
command.
If you cannot format the 2.5” HDD using the Tests and Diagnostic program, go to
Procedure 4.
Procedure 4 Diagnostic Test Program Execution Check
The HDD test program is stored in the Diagnostics Disk. Perform all of the HDD tests in the
Hard Disk Drive Test. Refer to Chapter 3, Tests and Diagnostics, for more information about
the HDD test program.
If an error is detected during the HDD test, an error code and status will be displayed.
Replace the HDD with a new one following the instructions in Chapter 4, Replacement Procedures. The error codes and statuses are listed in Table 2-6. If an error code is not
generated or the problem still exists, go to Procedure 5.
Table 2-6 HDD error code and status
Code Status
01h Bad command error
02h Address mark not found
04h Record not found
05h HDC not reset
07h Drive not initialized
08h Overrun error (DRQ)
09h DMA boundary error
0Ah Bad sector error
0Bh Bad track error
10h ECC error
11h ECC recover enable
12h DMA CRC error
20h HDC error
40h Seek error
80h Time out error
AAh Drive not ready
BBh Undefined error
CCh Write fault
The HDD may be disconnected, or the HDD, HDD cable or system board may be damaged.
Disassemble the computer following the steps described in Chapter 4, Replacement Procedures and perform the following checks:
Check 1 Make sure the HDD is firmly connected to CN1850 on the system board.
If any of the connections are loose, reconnect firmly and repeat Procedure 1. If
there is still an error, go to Check 2.
Check 2 The HDD may be damaged. Replace it with a new one following the instructions
in Chapter 4, Replacement Procedures. If the problem still exists, perform Check
3.
Check 3 The System board may be damaged. Replace it with a new one following the
instructions in Chapter 4, Replacement Procedures.
2 Troubleshooting Procedures 2.7 Keyboard and Touch pad Troubleshooting
2.7 Keyboard and Touch pad Troubleshooting
To determine if the computer’s keyboard or touch pad is functioning properly, perform the
following procedures. Start with Procedure 1 and continue with the other procedures as
instructed.
Procedure 1: Diagnostic Test Program Execution Check
Procedure 2: Connector Check and Replacement Check
Procedure 1 Diagnostic Test Program Execution Check
Execute the Keyboard Test in the Diagnostic Program. Refer to Chapter 3, Tests and
Diagnostics, for more information on how to perform the test program.
If an error occurs, go to Procedure 2. If an error does not occur, the keyboard is functioning
properly.
2.7 Keyboard and Touch pad Troubleshooting 2 Troubleshooting Procedures
Procedure 2 Connector Check an d Replacement Check
The keyboard, touch pad or sensor/switch board may be disconnected or damaged.
Disassemble the computer following the steps described in Chapter 4, Replacement Procedures, and perform the following checks:
1. If the keyboard malfunctions, start with Check 1.
2. If the touch pad malfunctions, start with Check 3.
3. If the SW membrane malfunctions, start with Check 6.
Check 1 Make sure the keyboard cable is securely connected to CN3230 on the system
board.
If the connection is loose, reconnect firmly. If there is still an error, go to Check 2.
Check 2 The keyboard or its cable may be damaged. Replace it with a new one following
the instructions in Chapter 4, Replacement Procedures. If the problem still exists,
perform Check 8.
Check 3 Make sure the touch pad cable is firmly connected to CN3240 on the system
board.
If the connection is loose, reconnect firmly. If there is still an error, go to Check 4.
Check 4 The touch pad may be damaged. Replace it with a new one following the
instructions in Chapter 4, Replacement Procedures. If the problem still exists,
perform Check 5.
This section describes how to determine if the computer’s display is functioning properly.
Start with Procedure 1 and continue with the other procedures as instructed.
Procedure 1: External Monitor Check
Procedure 2: Diagnostic Test Program Execution Check
Procedure 3: Connector Check and Cable Check
Procedure 4: Replacement Check
Procedure 1 External Monitor Check
Connect an external monitor and turn on the computer. If there is no problem on it, the
internal LCD may be defective. Go to Procedure 3. If there is any problem on the external
monitor, the system board may be defective. Go to Procedure 2.
Procedure 2 Diagnostic Test Program Execution Check
The Display Test program is stored on the computer’s Diagnostics disk. This program checks
the display controller on the system board. Insert the Diagnostics disk in the computer’s
floppy disk drive, turn on the computer and run the test. Refer to Chapter 3, Tests and Diagnostics for details. If an error is detected, go to Procedure 3.
Procedure 3 Connector Check an d Cable Check
Check 1 The LCD, FL, FL Inverter Board and System Board are connected by the HV
cable and LCD/FL cable as shown bellow. Check the connections. The
connectors may be disconnected or damaged. Disassemble the computer
following the steps described in Chapter 4, Replacement Procedures.
If the connection is loose, reconnect firmly and restart the computer. If there is still an error,
go to Procedure 4.
Procedure 4 Replacement Check
The FL, FL inverter board, LCD module, and system board are connected to display circuits.
Any of these components may be damaged. Refer to Chapter 4, Replacement Procedures, for
instructions on how to disassemble the computer and then perform the following checks:
1. If characters or graphics are not displayed clearly, perform Check 1.
2. If some screen functions do not operate properly, perform Check 2.
3. If the FL remains lit when the display is closed, perform Check 4.
Check 1 Replace the FL with a new one following the instructions in Chapter 4,
Replacement Procedures and test the display again. If the problem still exists,
perform Check2.
Check 2 Replace the LCD module with a new one following the instructions in Chapter 4,
Replacement Procedures and test the display again. If the problem still exists,
perform Check 3.
Check 3 Replace the display cable (FL cable and LCD cable) with a new one following the
instructions in Chapter 4, Replacement Procedures and test the display again. If
the problem still exists, perform Check 4.
Check 4 The display controller on the system board may be damaged. Replace the system
board with a new one following the instructions in Chapter 4, Replacement
This section describes how to determine if the optical drive (DVD-ROM&CD-R/RW or
DVD Super Multi drive) is functioning properly. Perform the steps below starting with
Procedure 1 and continue with the other procedures as required.
Procedure 1: Diagnostic Test Program Execution Check
Procedure 2: Connector Check and Replacement Check
Procedure 1 Diagnostic Test Program Execution Check
The CD-ROM/DVD-ROM test program is stored in the Diagnostics Disk.
For the test, prepare test Media.
Then insert the Diagnostics Disk in the USB floppy disk drive, turn on the computer and run
the test. Refer to Chapter 3, Tests and Diagnostics, for more information about the
diagnostics test procedures.
If any errors occur while executing the CD-ROM/DVD-ROM test, go to Procedure 2.
Procedure 2 Connector Check an d Replacement Check
The optical drive (DVD-ROM&CD-R/RW or DVD Super Multi drive) is connected to the
system board. The connectors may be disconnected from the system board or may be
damaged. Disassemble the computer following the steps described in Chapter 4, Replacement Procedures and perform the following checks:
Check 1 Make sure the drive to test is firmly connected to CN1810 on the system board.
If the connection is loose, reconnect firmly and repeat Procedure 1. If there is still
an error, go to Check 2.
Check 2 The drive may be defective or damaged. Replace the drive with a new one. If
there is still an error, go to Check 3.
Check 3 Replace the system board with a new one following the steps in Chapter 4,
This section describes how to determine if the computer’s modem is functioning properly.
Perform the steps below starting with Procedure 1 and continuing with the other procedures
as required.
Procedure 1: Diagnostic Test Program Execution Check
Procedure 2: Connector Check and Replacement Check
Procedure 1 Diagnostic Test Program Execution Check
Insert the LAN/Modem/Bluetooth/IEEEE1394 test program in the USB floppy disk drive,
turn on the computer and run the test. Refer to Chapter 3, Tests and Diagnostics, for more
information about the diagnostics test procedures.
If any errors occur while executing the Sound/Modem/LAN test, go to Procedure 2.
Procedure 2 Connector Check an d Replacement Check
The Modem is installed as a MDC (Modem Daughter Card). If the modem malfunctions,
there may be a bad connection between the MDC and the system board. Or the MDC, system
board or their connectors might be damaged.
Disassemble the computer following the steps described in Chapter 4, Replacement Procedures and perform the following checks:
Check 1 Make sure the MDC is firmly connected to CN3010 on the system board and the
Modem cable is firmly connected to the Modem jack.
If connections are disconnected, connect them firmly and repeat Procedure 1. If
the modem is still not functioning properly, perform Check 2.
Check 2 The MDC may be defective or damaged. Replace it with a new one following the
steps in Chapter 4, Replacement Procedures. If the modem is still not functioning
properly, perform Check 3.
Check 3 The MDC cable may be defective or damaged. Replace it with a new one
following the steps in Chapter 4, Replacement Procedures. If the modem is still
not functioning properly, perform Check 4.
Check 4 The system board may be defective or damaged. Replace it with a new one
following the steps in Chapter 4, Replacement Procedures.
2.11 LAN Troubleshooting 2 Troubleshooting Procedures
2.11 LAN Troubleshooting
This section describes how to determine if the computer’s LAN is functioning properly.
Perform the steps below starting with Procedure 1 and continue with the other procedures as
required.
Procedure 1: Diagnostic Test Program Execution Check
Procedure 2: Connector Check and Replacement Check
Procedure 1 Diagnostic Test Program Execution Check
Execute the LAN test program available as part of the LAN/Modem/Bluetooth/IEEE1394
test program. Refer to Chapter 3, Tests and Diagnostics for more information on how to
perform the test program.
If any error is detected by the test, go to Procedure 2.
Procedure 2 Connector Check an d Replacement Check
The RJ-45 jack with LAN cable is connected to the system board. If the LAN malfunctions,
the system board might be damaged.
Disassemble the computer following the steps described in Chapter 4, Replacement
Procedures and perform the following check:
Check 1 Make sure the RJ-45 jack is firmly connected to CN4100 on the system board.
If the connectors are disconnected, connect it firmly and repeat Procedure 1. If
the LAN function is still not functioning properly, perform Check 2.
Check 2 The system board may be defective or damaged. Replace it with a new one
following the steps in Chapter 4, Replacement Procedures.
2 Troubleshooting Procedures 2.12 Bluetooth Troubleshooting
2.12 Bluetooth Troubleshooting
This section describes how to determine if the computer’s Bluetooth is functioning properly.
Perform the steps below starting with Procedure 1 and continuing with the other procedures
as required.
Make sure the wireless switch on the left side of the computer is turned “On”. If it is not,
slide the switch toward the back of the computer to turn it on.
Check 1 Execute Bluetooth test program. Perform the test following the instructions
described in Chapter 3, Bluetooth Test Program. You will need a second
computer that can communicate by the Bluetooth.
If the computer passes the test, the function is correctly working. If the computer
2.12 Bluetooth Troubleshooting 2 Troubleshooting Procedures
Procedure 2 Connection Check
The Bluetooth function wiring diagram is shown below:
Any of the connections may be disconnected. Disassemble the computer following the steps
described in Chapter 4, Replacement Procedures, and perform the following checks:
Check 1 Make sure that the wireless communication switch is “On”.
If the switch is “Off”, turn it “On”. If the problem still occurs, perform Check 2.
Check 2 Make sure the Bluetooth module is firmly connected to the connector CN4400 on
the system board.
If the connector is disconnected, connect it firmly. If the Bluetooth module is still
not functioning properly, perform Check 3.
Check 3 Make sure the Bluetooth antenna cable is firmly connected to the Bluetooth
module.
If the Bluetooth antenna cable is disconnected, connect it firmly. If the Bluetooth
module is still not functioning properly, go to Procedure 3.
Procedure 3 Replacement Check
The Bluetooth antenna, Bluetooth module, sound board and system board are connected to
the circuits. Any of these components may be damaged. Refer to Chapter 4, Replacement Procedures, for instructions on how to disassemble the computer and then perform the
following checks:
Check 1 The Bluetooth module may be defective or damaged. Replace the Bluetooth
module with a new one following the steps in Chapter 4, Replacement Procedures.
If the Bluetooth is still not functioning properly, perform Check 2.
Check 2 The Bluetooth antenna may be defective or damaged. Replace the Bluetooth
antenna with a new one following the steps in Chapter 4, Replacement Procedures. If the Bluetooth is still not functioning properly, perform Check 3.
Check 3 The system board may be defective or damaged. Replace the system board with a
new one following the steps in Chapter 4, Replacement Procedures.
2 Troubleshooting Procedures 2.13 Wireless LAN Troubleshooting
2.13 Wireless LAN Troubleshooting
This section describes how to determine if the computer’s Wireless LAN is functioning
properly. Perform the steps below starting with Procedure 1 and continuing with the other
procedures as required.
Make sure the wireless switch on the left side of the computer is turned “On”. If it is not,
slide the switch toward the back of the computer to turn it on.
Refer to Chapter 3, Tests and Diagnostics for more information on how to perform the test
program.
Check 1 Execute test program for the wireless LAN function to check the transmitting-
receiving function of the wireless LAN. You will need a second computer that can
communicate by the wireless LAN.
If the computer passes the test, the function is correctly working.
If the computer does not pass the test, perform Procedure 2.
2.13 Wireless LAN Troubleshooting 2 Troubleshooting Procedures
Procedure 2 Antenna Connection Check
The wireless LAN wiring diagram is shown below:
Any of the connections may be disconnected. Disassemble the computer following the steps
described in Chapter 4, Replacement Procedures, and perform the following checks:
Check 1 Make sure the wireless LAN card is firmly connected to CN2600 on the system
board.
If the connector is disconnected, connect it firmly. If the wireless LAN card is still
not functioning properly, perform Check 2.
Check 2 Make sure the wireless LAN antenna cables are firmly connected to the wireless
LAN card.
If the wireless LAN antenna cables are disconnected, connect them firmly. If the
wireless LAN card is still not functioning properly, go to Procedure 3.
Procedure 3 Replacement Check
The wireless LAN antenna, wireless LAN board and the system board are connected to the
circuits. Any of these components may be damaged. Refer to Chapter 4, Replacement Procedures, for instructions on how to disassemble the computer and then perform the
following checks:
Check 1 The wireless LAN card may be defective or damaged. Replace it with a new one
following the steps in Chapter 4, Replacement Procedures. If the problem still
exists, perform Check 2.
Check 2 The wireless LAN antenna may be defective or damaged. Replace the antenna
with a new one following the steps in Chapter 4, Replacement Procedures. If the
problem still exists, perform Check 3.
Check 3 The system board may be defective or damaged. Replace the board with a new
one following the instructions in Chapter 4, Replacement Procedures and test the
display again.
NOTE: On the Operation Systems other than Windows/Vivace, sounds come form the
internal speaker, even if a headphone connected.
This section describes how to determine if the computer’s sound functions are functioning
properly. Perform the steps below starting with Procedure 1 and continuing with the other
procedures as required.
Procedure 1: Diagnostic Test Program Execution Check
Procedure 2: Connecor Check
Procedure 3: Replacement Check
Procedure 1 Diagnostic Test Program Execution Check
Insert the Sound test program in the USB floppy disk drive, turn on the computer and run the
test. Refer to Chapter 3, Tests and Diagnostics, for details.