Toshiba Personal Computer TECRA S3 Maintenance Manual
First edition August 2005
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 TECRA S3 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, Pentium 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.
Sonic RecordNow! is a registered trademark of Sonic Solutions.
Bluetooth is a trademark owned by its proprietor and used by TOSHIBA under license.
i.LINK is trademark and registered trademark of Sony Corporation.
OmniPass is the trademark of Softex Incorporated.
InterVideo and WinDVD are registered trademarks of InterVideo Inc.
WinDVD Creator is trademark of InterVideo Inc.
Other trademarks and registered trademarks not listed above may be used in this manual.
ii [CONFIDENTIAL] TECRA S3 Maintenance Manual (960-532)
Preface
This maintenance manual describes how to perform hardware service maintenance for the
Toshiba Personal Computer TECRA S3.
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.
TECRA S3 Maintenance Manual (960-532) [CONFIDENTIAL] iii
The manual is divided into the following parts:
Chapter 1 Hardware Overview describes the TECRA S3 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] TECRA S3 Maintenance Manual (960-532)
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
TECRA S3 Maintenance Manual (960-532) [CONFIDENTIAL] v
The Toshiba TECRA S3 Personal Computer uses extensive 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 and benefits:
Intel Mobile Pentium-M Processor has 64KB primary cache and 2MB secondary cache.
Memory
The computer comes with two PC2-3200/PC2-4200 compatible DDR2 SO-DIMM slots.
Two memory modules of 256GB, 512MB or 1GB(1,024MB) can be installed.
Video Controller
The computer has a NV43 VGA controller. The internal VRAM is 64MB or 128MB.
HDD
The computer has a 2.5-inch, 9.5mm SATA HDD. The following capacities are available.
40/60/80/100GB
USB FDD
Supports a USB 3.5-inch FDD, which connected via a USB port, supports 720KB,
1.2MB and 1.44MB formats and enables booting from system FD.
Batteries
The RTC battery (NiMH 2.4V 16mAh) is mounted inside the computer.
The main battery is a detachable lithium-ion main battery (10.8V-4,700mAh/8,800mAh) .
Universal Serial Bus (USB2.0)
Three USB ports are provided. The ports comply with the USB2.0 standard.
LCD
The PC comes in with one of the following two types:
•
15.0” XGA-TFT color display, resolution 1,024×768, 16M colors
•
15.0” SXGA+-TFT color display, resolution 1,400×1,050, 16M colors
External monitor
Supported via a RGB connector.
Slim Select Bay
A DVD-ROM & CD-R/RW drive, DVD Super Multi drive (DVD±R/±RW/-RAM) or
2nd HDD can be installed in the Slim Select Bay.
Keyboard
An-easy-to-use 85-key (US) or 86-key (UK) keyboard provides a numeric keypad
overlay for fast numeric data entry or for cursor and page control. The keyboard supports
a Windows key and an application key.
Touch pad
Touch pad (dual point) is installed as a pointing device.
PC card slot
The PC card slot (PCMCIA) accommodates one 5mm Type II card. (Based on PC Card
Standard, supporting CardBus)
SD Card
The SD Card Slot can accommodate Secure Digital flash memory cards with various
capacities. SD cards let you easily transfer data from devices, such as digital cameras and
Personal Digital Assistants, which use SD Card flash-memory.
Sound system
The sound system is equipped with the following features:
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”.
Toshiba Presentation button
This button switches the display between internal display, external display, simultaneous
display and multi-monitor display.
Internal modem
The internal modem is equipped as a modem daughter card (MDC).
The internal modem provides capability for data and fax communication and supports
V.90/92. For data reception it operates at 56,000bps and for data transmission it operates
at 33,600bps. For fax transmission it operates at 14,400bps. It is also equipped with
Speakerphone and TAM (Telephony Answering Machine) function. The speed of data
transfer and fax depends on analog telephone line conditions. It has a RJ11 modem jack
for connecting to a telephone line.
Internal LAN
The computer is equipped with LAN circuits that support 1,000Mbit (Gigabit) Ethernet
LAN. It also supports Wakeup on LAN (WOL), Magic Packet and LED.
Mini PCI card slot (Wireless LAN)
The computer is equipped with a mini-PCI Type III wireless LAN card that supports
802.11 b/g or 802.11a/b/g (Intel made Freeville). It also supports kill switch.
Bluetooth
Bluetooth module can be equipped. This enables a communication to devices that support
Bluetooth Version 2.0. Adopting AFH (Adaptive Frequency Hopping), reduce the
interference with the wireless communication in 2.4GHz.
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.
Infrared port
The infrared port is compatible with Fast InfraRed (FIR) standards enabling cableless 4
Mbps (max.) data transfer with Infrared Data Association (IrDA) 1.1 compatible external
devices.
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.
The HDD is a random access non-volatile storage device. The computer supports a 40GB,
60GB, 80GB and 100GB HDD.
The HDD is shown in figure 1-4. Specifications are listed in Table 1-1.
Figure 1-4 2.5-inch HDD
Table 1-1 2.5-inch HDD specifications (1/2)
Specifications
Items
Outline
dimensions
Storage size (formatted) 40GB 60GB 80GB 100GB
Speed (RPM) 5,400
Data transfer rate
Storage size (formatted) 40GB 60GB 80GB 100GB
Speed (RPM) 5,400
Data transfer rate (Mb/s) 218-429 236.1-456.0
Data buffer size (kb) 8,192 16,384
Average seek time
The keyboard is mounted 85(US)/86(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-ROM & CD-R/RW drive accommodates either 12 cm (4.72-inch) or 8 cm (3.15inch) CDs, CD-R/RW and DVDs. It is a high-performance drive that writes CD-R at
maximum 24-speed and CD-RW at maximum 24-speed (Ultra Speed CD-RW) and reads
DVD-ROM at maximum 8-speed and CD-ROM at maximum 24-speed.
DVD-ROM & CD-R/RW drive specifications are listed in Table 1-2.
Table 1-2 DVD-ROM & CD-R/RW drive specifications
Item
MATSUSHITA G8CC00025A20
Outline Width (mm) 128 (The projection part is excluded)
Dimensions Height (mm) 9.5 (The projection part is excluded)
The DVD Super Multi drive is capable of driving either 12cm (4.72-inch) or 8cm (3.15-inch)
DVD and CD without using an adaptor. This drive reads DVD-ROM at maximum 8-speed,
reads CD-ROM at maximum 24-speed, writes CD-R at maximum 24-speed, writes CD-RW
at maximum 10-speed, writes DVD-R at maximum 4-speed, writes DVD-RW at maximum 2speed, writes DVD+R at maximum 4-speed, writes DVD+R DL at maximum 2.4-speed,
writes DVD+RW at maximum 2.4-speed and writes DVD-RAM at maximum 2-speed.
The DVD Multi drive specifications are listed in Table 1-3.
Table 1-3 DVD Super Multi (DVD±R/±RW/-RAM) drive specifications
Item
MATSUSHITA G8CC0002Q120
Outline Width (mm) 128 (The projection part is excluded)
Dimensions Height (mm) 9.5 (The projection part is excluded)
The TFT color display consists of 15.0-inch XGA/SXGA+ 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 1,024 x 768 or 1,400x 1,050 resolution. The
NVIDIA-made NV43 can control both internal and external XGA/SXGA+ 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 (1/2)
Specifications (15.0-inch XGA TFT)
Item
Number of Dots
Dot spacing (mm) 0.297(H) × 0.297(V)
Display range (mm) 304.128(H) × 228.096(V)
The computer has two types of batteries as follows:
Main battery pack
RTC battery
The battery specifications are listed in Table 1-7.
Table 1-7 Battery specifications
Battery name Material Output voltage Capacity
G71C0003W510
Main battery
RTC battery GDM710000041 NiMH 2.4 V 16 mAh
G71C0003W610
Lithium-Ion 10.8 V
G71C0004G510
G71C0004G610
8,800 mAh
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 maintain the state of the computer when the computer
enters in resume mode.
θ 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 or in suspend mode.
(See Table 1-8)
Table 1-8 Time required for charges of main battery
Power ON Power OFF
Battery (8,800mAh) About 5.0 to 21.5 hours About 4.5 hours
Battery (4,700mAh) About 3.5 to 13.0 hours About 3.0 hours
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.
The RTC battery provides power to keep the current date, time and other setup information
in memory while the computer is turned off. Table 1-9 lists the charging time and data
preservation period of the RTC battery.
Table 1-9 RTC battery charging/data preservation time
Status Time
Charging Time (power on) 8 hours
Data preservation period (full charge) 30 days
Chapter 2 describes how to determine if a Field Replaceable Unit (FRU) in the computer is
causing the computer to malfunction. The FRUs covered are:
1. Power Supply 6. Display 11. SD Card Slot
2. System Board 7. Optical Drive 12. Wireless LAN
3. USB Floppy Disk Drive 8. Modem 13. Bluetooth
4. Hard Disk Drive 9. LAN 14. PCI ExpressCard
5. Keyboard/Touch pad 10. Sound 15. Fingerprint Sensor
The Diagnostics Disk operations are described in Chapter 3. Detailed Replacement
Procedures are given in Chapter 4, Replacement Procedures.
The following tools are necessary for implementing the troubleshooting procedures:
The following tools are necessary for implementing the Diagnostics pro cedu res:
For tools required for executing the Test Program, refer to the Chapter3. For tools required
for disassembling/assembling, refer to the Chapter 4.
1. Toshiba MS-DOS system FD
2. LED board
3. Headphone (for Sound troubleshooting)
4. An external microphone(for Sound troubleshooting)
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, real timer 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/touch pad test, per form the Keyboard
Troubleshooting Pr ocedures 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 optical drive test, perform the Optical Drive
Troubleshooting Pr ocedures 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 sound test, perform the Sound 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 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.
Lights green DC power is being supplied from the AC adapter.
Blinks 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 detects a malfunction, the DC IN LED
blinks orange and an error code is displayed.
If the icon blinks, execute the followings:
1. Remove the battery and AC adapter to cut power supply to the computer.
2. Reinstall the battery and AC adapter.
If the LED still blinks, perform 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 green, go to Procedure 4.
CAUTION: Use a recommended AC adapter (G71C00043310/G71C00049410).
If the power supply microprocessor detects a malfunction, th e D C IN icon blinks orang e. 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 LSB (Least Significant bit).
Example: Error code 11h (Error codes are given in hexadecimal format.)
Check 1 Convert the DC IN icon blink pattern into the hexadecimal error code and
compare it to the tables below. Then go to Check 2.
10h AC Adaptor output voltage is over 16.5V.
11h Common Dock 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 load.
14h Current sensing IC is not normal.
Error code Meaning
22h Main battery discharge current is over 0.5A.
23h Main battery charge current is over 3.9A when the battery is charged.
24h Current sensing IC is not normal.
25h
Main battery charge current i s ov er 0.3A whe n th e ba ttery is not
charged.
Error code Meaning
32h Secondary battery discharge current is over 0.5A.
33h Secondary battery charge current is over 3.9A when the battery is
charged.
34h Current sensing IC is not normal.
35h Secondary battery charge current is over 0.3A when the battery is not
charged.
Error code Meaning
40h S3V voltage is over 3.47V when the computer is powered on/off.
45h S3V voltage is under 3.14V when the computer is powered on/off.
46h S3V voltage is under 3.14V when the computer is booting up.
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 powered on.
52h E5V voltage is under 4.50V when the computer is booting up.
53h E5V voltage is over 4.50V when the computer is powered off.
54h E5V voltage is under 4.50V when the EV power supply 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 powered on.
62h E3V voltage is under 2.81V when the computer is booting up.
63h E3V voltage is over 2.81V when the computer is powered off.
64h E3V voltage is under 2.81V when the EV power supply is maintained.
1R5-E1V output (CH0)
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 computer is booting up.
73h 1R5-E1V voltage is over 1.275V when the computer is powered off.
1R8-B1V output
Error code Meaning
80h 1R8-B1V voltage is over 3.00V 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.
83h 1R8-B1V voltage is over 1.53V when the computer is powered off.
84h 1R8-B1V voltage is under 1.53V when the BV power supply is
90h PPV voltage is over 1.80V when the computer is powered on/off.
91h PPV voltage is under 0.56V when the computer is powered on.
92h PPV voltage is under 0.56V when the computer is booting up.
93h PPV voltage is over 0.56V when the computer is powered off.
PTV output (CH0)
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.
A3h PTV voltage is over 0.89V when the computer is powered off.
1R5-E1V output (CH1)
Error code Meaning
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 over 1.275V when the computer is powered off.
B4h 1R5-E1V voltage is under 1.275V when the EV power supply is
PGV output
Error code Meaning
C0h PGV voltage is over 1.62V when the computer is powered on/off.
C1h PGV voltage is under 0.68V when the computer is powered on.
C2h PGV voltage is under 0.68V when the computer is booting up.
C3h PGV voltage is over 0.68V when the computer is powered off.
C4h PGV voltage is under 0.68V when the BV power supply is
D0h VG1R8-P1V voltage is over 2.16V when the computer is powered
D1h VG1R8-P1V voltage is under 0.89V when the computer is powered on.
D2h VG1R8-P1V voltage is under 0.89V when the computer is booting up.
D3h VG1R8-P1V voltage is over 0.89V when the computer is powered off.
PTV output (CH1)
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 comp ut er is power e d on.
E2h PTV voltage is under 0.89V when the comp ut er is booting up.
E3h PTV voltage is over 0.89V when the computer is powered off.
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. After checking the connections,
perform the following Check 1:
Check 1 Replace the AC adaptor with a new one. If the AC adaptor is still not functioning
properly, perform Check 2.
Check 2 Replace the system board with a new one following the steps described in Chapter
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: Printer Port LED Check on Boot Mode
Procedure 3: Printer Port LED Check on Suspend/Resume Mode
Procedure 4: Diagnostic Test Program Execution Check
Procedure 5: Replacement 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 4.
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 the F1 key as the message instructs, the SETUP scre en appea rs to set
the system configuration. If any other error message is displayed, perform Check
2.
(a) *** Bad HDD type ***
Check system. Then press [F1] key ......
(b) *** Bad configuration ***
Check system. Then press [F1] key ......
(c) *** Bad memory size ***
Check system. Then press [F1] key ......
(d) *** Bad time function ***
Check system. Then press [F1] key ......
(e) *** Bad check sum (CMOS) ***
Check system. Then press [F1] key ......
(f) *** Bad check sum (ROM) ***
Check system. Then press [F1] key ......
(g) *RTC battery is low or CMOS checksum is inconsistent
Press [F1] key to set Date/Time
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 is displayed, perform Check 3.
The printer port LED displays the IRT status and test status by turning lights on and off as an
eight-digit binary value for boot mode. Figure 2-2 shows the printer port LED.
Figure 2-2 Printer port LED board
Figure 2-3 shows the function of the printer port LED board.
Prohibition of APIC Initialization of MCH, ICH Initialization of Super I/O
Dummy read of 3rd Bus data
B0h PIT CH0 initialization (for HOLD_ON)
BIOS rewrite factor flag initia lization
CHECK SUM CHECK Transition to protected mode
Checksum other than boot block (skipped
B1h
B2h Initialization of SC HLT at LED=B3H or B4, when error occurs
Key input (skipped when returned from
B5h Enables CPU cache
B6h Security check
BIOS rewrite request check If Checksum check error occurr ed on except
B7h Transits to System BIOS IRT
BIOS rewrite process Initialization of ICH. D31
DRAM configuration Permission of cache (L1 cache onl y)
Memory clear Transition to real mode and copy of BIOS
reset bit
Initialization of debug port (For models
supporting debug port)
Setting of printer port (For models
supporting printer port)
EC/KBC rewrite check
S3)
to RAM
Boot block checksum (ski pped when
returned from S3)
Halts when error occurs
when returned from S3)
If “rewrite” is requested, go to “BIOS rewrite
process”.
When a key is pressed, check if it is Tilde
key or Tab key. (skipped when returned from
S3)
Boot Block or rewrite is req uired by user, go
to “BIOS rewrite process”.
DRAM recognition)
Initialization of ICH.D30.Func0
Initialization of ICH.D31.Func0
Initialization of ICH.D31.Func1/2
Initializati o n of US B Cont r oll er
Initialization of ICH.D31.Func3
Initializ ation of ICH Audio
Initialization of TI Controller
Check of DRAM type and size
(at cold boot)
SM-RAM stack area test HLT when DRAM size is 0
Cache configuration
Cache permission
CMOS access test
(at cold boot)
Battery level check of CMOS
CMOS checksum check
Initialization of CMOS data (1)
Setting of IRT status (Setting of boot status and IRT bus y flag, Th e rest bits
Storing DRAM size in CMOS
Initialization of MCH
(Setting the refresh interval to “30μs”)
When unsupported memor y is c onn ect ed, bec o mi ng
HLT after beep sound
HLT When it can not be used as a stack
(HLT when an error is detected)
are 0)
Not resume when a CMOS error occurred
Not resume when resume status code is not set
APIC initialization WakeUp factor check SMRAM base rewriting and CPU state
Permission of SMI based on ASMI
06h Initialization of devices which need
Setting of test pattern to channel 0 of
Check whether the set test pattern can be
Initialization of PIT channel 0, Setting of
Initialization of PIT channel 2, Setting of
Test of PIT channel 1 (C heck whether the
Test of PIT channel 2 (Check whether the
CPU clock measurement
Check of parameter block A
Permission of SMI except auto-off funct i o n
Judging of destination (Japan or exce pt
Expansion memory checksum check
PnP RAM checksum check (Resume
Transition to RESUME-MAIN
Resume error process Reset of CPU clock to low
Prohibition of all SMI
Clearance of resume status
Return to ROM
Turning area of C0000h to EFFFFh to PCI
Setting of resume error request
Copying ROM/RAM of system BIOS (
map saving for BIOS
initialization before PCI bus initialization.
resume error (Resume error LED=76H)
error LED=77H)
(Prohibition of DRAM)
HLT, when error occurs)
PIT test (Cold boot only) and initialization
PIT#0
read
timer interruption interval to 55ms
the sound generator frequency to 664Hz
refresh signal works normally in 30 mi c r os refresh interval.)
TPM Initialization (model supporting TPM)
1Fh EX_IO_ROM_CHECK (Check of op tion I/O ROM)
20h PRE_BO OT_SETUP Saving of value in 40:00h ( For SIO saving/restoring)
Setting of font address for resume password
Setting of repeat parameter for USB KB
Acquisition of keys pressed during IRT
Storing of T_SHADOW_RAM_SIZE
Update of system resource before boot
Rewriting of memory map data of INT15h E 820 h
Waiting for AC-Link initialization completion (For models
Updating of table for DMI
Copy of ACPI table to top of exp ansion memory
Waiting for writing of PSC version to BIOS completion
Waiting for clock generator setting completion
Waiting for serial port initialization completion (For
Cancel of NMI Mask
Taking out TIT check sum
Clear of the IRT flag on Runtime side
Update of check sum on Runtime side
Hibernation branch (For models supporting BIOS
Initialization of Bluetooth (Fo r m o de ls su pp orting
Check of existence of object mai ntenance cards
Prohibition of unused PC cards
Setting Wakeup status data for ACPI
initialization completion)
Input of password (waiting for HDD initialization
completion)
(*1) Check the situation of security because the setting of security may prohibit the renewal
of BIOS when the LED status is BBh.
Procedure 3 Printer Port LED Check on Suspend/Resume Mode
The printer port LED displays the IRT status and error status by turning lights on and off as
an eight-digit binary value after turning on of the power.
To use the printer port LED, follow the steps below:
1. Turn on the computer’s power and set it to the resume mode.
2. Turn off the computer’s power.
3. Plug the printer port LED into the parallel port (printer port).
4. Read the LED status from left to right as you face the computer.
5. Convert the status from binary to hexadecimal notation.
6. If the final LED status is FFh (normal status), go to Procedure 4.
7. If the final LED status matc hes any of the test status values in Table 2-5, 2-6 perform
Table 2-5 Printer port LED suspend mode error status (2/3)
LED Status Test item Contents
39h Resume error check in suspend mode. Check if IRT process is being executedCheck if external option ROM exists
Execution of driver for suspend Clearing of data for Remote Lockout Storing of FDD register (For models supporting built-in FDD)
Storing of US B register
Halt of HC
Storing CPU register Permission of system area and memory cache (to work at high-speed)
Suspending of HDD Storing KBC,SCC and MOUSE Storing of PCI device
Storing of PIT Starts sequence for storing display system.
Storing of PIC Storing of DMAC Storing of system status command port Storing of SIO (For models supporting SIO)
Storing of PCMCIA card Storing of RTC Processing of system peculiar HW preservation Calculation of check sum (conventional memory)
3Ah Suspending for boot mood
3Dh Processing of VGA –off (boot)
Suspending of HDD (boot) Transition to S5 of Bluetooth (boot) (For models supporting Bluetooth)
3Eh Suspending of boot/ resume for PnP
Suspending of boot /resume for password
3Fh Waiting for completion of suspending for HDD password
Check if FDD motor is rotating
(For models supporting built-in FDD)
(Stores PnP resource information into
Flash ROM.)
(Stores password information into Flash
ROM.)
Table 2-5 Printer port LED suspend mode error status (3/3)
LED Status Test item Contents
40h Prohibition of PCI arbiter Setting of Wakeup event Power-off of PC card Re-setting backup current Forced off of fan
Power LED control during suspending Isolates built-in LAN. Makes the power of sound off. Makes the power of Dock off. (For models supporting Dock)
41h
42h Measure for USB over current Calculation of check sum of PnP RAM area (Not work in suspending for boot)
Acquires how to turn the power off Resets by EC. (when required)
Prohibition of all SMI Initializing of special register in suspending
43h
Setting status of suspend completion
Prohibition of L1&L2 Power off process
Checks whether off-process for resume is
needed
Model-unique processing just before
suspending
Waiting for completion of dividing for
suspending
Stops dividing of extension command for
power off.
Makes not to send Eject Power Off
command when turn the power off by the
date check of alarm power on.
Calculates the check sum of SMRAM and
stores it in SMRAM.
Calculates the checksum of system BIOS in
the IRT side
Table 2-6 Printer port LED resume mode error status (1/4)
LED Status Test item Contents
00h Refer to IRT printer LED error status.
01h Refer to IRT printer LED error status.
02h Refer to IRT printer LED error status.
03h Refer to IRT printer LED error status. Clears flag for SMI control.
27h(not used) Renewal of Resume counter
26h Checks the WakeUp factors.
Rewriting of SMRAM BASE
28h
Measuring CPU clock
Che ck of par a m eter bl ock A Permission of SMI other than auto-off function
Control of excess of rated input powerControl of battery discharging current (1CmA)
AC adapter rated over current controlDividing for measuring of IRT time
Setting to clock generator
Recovery of PIC register
S ett i ng of AC’ 9 7/ Az ali a oper at i o n mo deInitializing of temperature control information
Initializing of KBC
VGA display-off and Reset control
Cont r ol of buil t - in LA N per mi ssi o n/ pr ohi bi ti on
Initializing devices necessary for
initialization before initializing PCI bus
Initialization of devices necessary for
initialization before initializing PCI bus 2
Initializing of PIT
Initializing of PIT channel 0 (Sets the interval of
timer interruption to 55ms)
Initializing of PIT channel 2 (Sets the sound
generator frequency to 664Hz)
Initializing of CPU
Updating micro-code
Judgment of CPU type
Check of supporting Geyserville
Sets the CPU clock to High
Table 2-6 Printer port LED resume mode error status (2/4)
LED Status Test item Contents
(28h)Initializing of sound
Initializing of PCI Express
Initializing of HC and recognizing of devices Initializing and recognizing of SD card
29h Initializing of PCI devices
2Ah Resume process of IEEE1394 (For mod els supporting IEEE1394)
Waiting for initializing of devices whic h
Recovery of each device (1) Processing of RESUME for PnP
Processing of RESUME for PCI
Recovery of PCMCIA card
Initializing COM (For models supporting SIO)Initializing FIR (For models supporting FIR)Check of HDD pack connection
Start of IDE device resume sequence
2Bh
Enabling power off switch
Recovery of each device (2) Setting items to be set up
Initializing DMAC
Check of the checksum of conventional
memory
Check of WakeUp factor s after
initializing PCI bus
have to be initialized before setting HW
by PnP resource
Recovery of user alarm setting an d
cancel of alarm power-on fu ncti o n
Initializing EC and start of reading
battery information
Acquires the multi-box status (For models
supporting Sele c t ba y)
Resume error LED=74H
Waiting for completion of MultiBox status
check
(For models supporting Select bay)
Tentative initialization of printer port
(For models supporting printer port)
Waiting for the completion of VGA powerdown control (because the VGA configuration
can not be seen)
Recovery of FDC
internal FDD)
Error when an ATA card is pulled out
(For models supporting ATA card)
Resume error LED=7BH
Executing of dividing process of device
Table 2-6 Printer port LED resume mode error status (3/4)
LED status Test item Contents
(2Bh)
Initializing VGA BIOS, when resume Waiting for VGA power on
2Ch Calling VGA BIOS
2Eh Processing of password for RESUME
2Fh Recovery of each device(3)
Recovery of DMAC register
PnP Resume processing 2
Turns the disabled HDD motor off
30h Waiting for completion of KBC initializing (not in ACPI mode)
Waiting for completion of USB initializing Recovery of USB register Recovery of CPU register Processing of SIO dummy-reading (For models supporting SIO)
Resetting NDP interruption
Wakeup check
Setting WAKEUP status data for ACPI
Setting battery saving mode
Setting date
Closing PCI device configuration area
Cache control
Process related to CPU
Setting of CPU to SETUP designation
Waiting for motor-off of disabled HDD
Final decision of USB FDD information
After process of PRE_BOOT_SETUP
Clears PWRBTN_STS.
Enables Power Button.
Recovery of system, status, command and
port
Initializing HW just before booting or
waiting for the completion
Table 2-6 Printer port LED resume mode error status (4/4)
LED status Test item Contents
(30h)
Recovery of PIT register Recovery of PCI configuration register
Recovery of PIC MASK Executing of driver for RESUME
31h Checks if the power-off switch is
32h (Not in ACPI mode) Clears key buffer
33h (In ACPI mode) Clears IRT status.
34h (In ACPI mode) Clears flag in Resume process
Acquires Wake Up Vector address.
Clears key buffer.
Renewal of date/time
ACPI mode on
Recovery of write- protected status before.
FFh (In ACPI mode / not in ACPI mode)
Returning to the mai n process
Waiting for the completion of recovery
of VGA register
Waiting for the completion of recovery
of FDD
pressed or not during resume
processing/
Executes HOTKEY F1 when booting in
instant security
(For models supporting built-in FDD)
Suspends if pressed.
Initializing printer port (For models s upp ort in g
printer port)
Procedure 4 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. Wireless LAN test
13. LAN/Modem/Bluetooth/IEEE1394 test
14. Sound test
If an error is detected during these tests, go to Procedure 5.
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.
Insert the Diagnostics Disk in the USB FDD, 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.
Detailed operation is given in Chapter 3, Tests and Diagnostics.
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 2-7. 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 2-7 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 US board or SR board via the USB port.
Check 1 Make sure the USB FDD cable is firmly connected to the connector
CN4620/CN4621 on the US board or CN4630 on the SR board. The USB FDD
can be connected to any of three USB ports. (Two ports are installed on the UA
board and one is on the USB board.)
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 Make sure the US cable is firmly connected to the connector CN4622 on the US
board and CN4610 on the system board.
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 3.
Check 3 Make sure the SR cable is firmly connected to the connector CN9510 on the SR
board and CN4611 or CN3421 on the system board.
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 4.
Check 4 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, go to Check 5.
Check 5 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 start the computer. 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 of no floppy disk in the 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
or
Select Bay 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 5.
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 Check SETUP to see whether the Hard Disk option is set to “Not used”. If it is set
to “Not used”, choose another setting and return to Check 1. If it is not set to “Not
used”, go to Check 4.
Check 4 Using the SYS command on the Toshiba MS-DOS system disk, install system
files on the HDD. If it is not installed, go to procedure 3. Refer to MS-DOS
manual.
If the following message appears on the display, the system files have been
transferred to the HDD. Restart the computer. If the problem still exists, go to
Check 5.
System transferred
Check 5 The connection of the HDD and system board may loose. Reconnect firmly (refer
to the instructions in Chapter 4, Replacement Procedures). If they connect firmly,
The computer’s 2.5” HDD is formatted using the MS-DOS FORMAT program or the
physical format program of the test program. To format the 2.5” 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 the 2.5” 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 2-8. If an error code is not
generated or the problem still exists, go to Procedure 5.
Table 2-8 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
20h HDC error
40h Seek error
80h Time out error
AAh Drive not ready
BBh Undefined error
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.
Procedure 2 Connector Check and Replacement Check
The keyboard or touch pad may be disconnected or damaged. Disassemble the computer
following the steps described in Chapter 4, Replacement Procedures, and perform the
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: Diagnostic Test Program Execution Check
Procedure 2: Connector Check and Cable Check
Procedure 3: Replacement Check
Procedure 1 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 USB 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 2 Connector Check and Cable Check
The LCD module is connected to the system board by an LCD/FL cable. The FL inverter
board is also connected to the system board by an LCD/FL cable. 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.
If the connection is loose, reconnect firmly and restart the computer. If there is still an error,
go to Procedure 3.
Units related to display are a FL inverter board, Display module, System board, LCD/FL
cable and display ON/OFF sensor. Any of the components may be damaged. Disassemble the
computer following the steps described in Chapter 4, R eplacement Procedures, then perform
the following checks:
(1) If the FL does not light, perform Check 1.
(2) If characters are displayed on the internal display but the display is not
normal, perform Check 2.
(3) If the FL lights even if the display cover is closed, perform Check 5.
Check 1 Open the display and check the display on/off sensor. If the sensor works properly,
display switch may be damaged. Replace the switch with a new one. If there is
still an error, go to Check 2.
Check 2 The LCD/FL cable may be damaged. Replace the cable with a new one. If there is
still an error, go to Check 3.
Check 3 The LCD module may be damaged. Replace it with a new one and repeat
Procedure 1. If there is still an error, go to Check 4.
Check 4 The FL inverter board may be damaged. Replace it with a new one and repeat
Procedure 1. If there is still an error, go to Check 5.
This section describes how to determine if the optical drive in the Slim Select Bay 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.
Prepare the tools before the test.
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 and Replacement Check
The optical 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 optical drive may be defective or damaged. Replace it 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
Execute the Modem test program available as part of the LAN/Modem/Bluetooth/IEEE1394
test program. This program checks the modem. 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.
The Modem is installed as a Modem Daughter Card (MDC). If the modem malfunctions,
there may be a bad connection between the MDC and the 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/jack cable is connected to CN3011 on the system board and the connector
of the MDC.
If any of the connector is disconnected, connect it firmly and repeat Procedure 1.
If the modem is still not functioning properly, perform Check 2.
Check 2 The modem jack or modem jack 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 3.
Check 3 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 4.
Check 4 The system board may be defective or damaged. Replace it with a new one
following the steps in Chapter 4, Replac em ent Proced ures.
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 and Replacement Check
LAN function of this computer is mounted on the system board. If the LAN malfunctions, the
LAN cable or 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 LAN cable is firmly connected to J4100 on the system board.
If the connector is disconnected, connect it firmly and repeat Procedure 1. If the
LAN port is still not functioning properly, perform Check 2.
Check 2 The LAN cable may be defective or damaged. Replace it with a new one. If the
LAN port is still not functioning properly, perform Check 3.
Check 3 The system board may be defective or damaged. Replace it with a new one
following the steps in Chapter 4, Replacement Procedures.
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: Connector Check
Procedure 3: Replacement Check
Procedure 1 Diagnostic Test Program Execution Check
Execute the Sound 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.
Any of the connections may be disconnected. Disassemble the computer following the steps
described in Chapter 4, Replacement Procedures and perform the following checks:
1. If the stereo speaker or internal microphone does not work correctly, perform
Check 1.
2. If the external microphone or headphone does not work correctly, perform
Check 2.
Check 1 If the stereo speaker or internal microphone does not work properly, the speaker
cable or internal microphone cable may be disconnected. Make sure the speaker
cable is firmly connected to CN6170 on the system board and the internal
microphone is firmly connected to CN6050 on the system board. If the stereo
speaker or internal microphone is still not functioning properly, go to procedure 3.
Check 2 If the external microphone or headphone does not work properly, the external
microphone cable or headphone jack may be disconnected. Make sure the external
microphone cable is firmly connected to J6051 on the system board and the
headphone jack is firmly connected to J6310 on the system board. If the external
microphone or headphone is still not functioning properly, go to procedure 3.
Check 1 If the stereo speaker or internal microphone does not sound properly, the stereo
speaker or internal microphone may be defective or damaged. Replace it with a
new one. If the stereo speaker or internal microphone still does not work properly,
go to Check 3.
Check 2 If the external microphone or headphone does not sound properly, go to Check 3.
Check 3 The system board may be defective or damaged. Replace it with a new one
following the step in Chapter 4 Replacement Pro cedures.
This section describes how to determine if the computer’s SD card functions are functioning
properly. Perform the steps below starting with Procedure 1 and continuing with the other
procedures as required.
Procedure 1: Check on Windows XP
Procedure 2: Connector Check and Replacement Check
Procedure 1 Check on Windows XP
Insert a SD card into the slot. Check if the installed Windows recognizes automatically the
SD card and the data in the SD card can be read.
If the card is not recognized or data are not read, go to Procedure 2.
Procedure 2 Connector Check and Replacement Check
The SD card is connected to IS2101 on the system board.
Check 1 Make sure the SD card is firmly inserted to the slot (IS2101) on the system board.
If not, insert it firmly. If the SD card is still not functioning properly, perform
Check 2.
Check 2 The SD card may be defective or damaged. Replace it with a new one following
the step in Chapter 4 Replacement Procedures. If the problem continues, perform
Check 3.
Check 3 The system board may be defective or damaged. Replace it with a new one
following the step in Chapter 4 Replacement Procedures.
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.
Procedure 1: Transmitting-Receiving Check
Procedure 2: Antenna Connection Check
Procedure 3: Replacement Check
Procedure 1 Transmitting-Receiving Check
Before starting the test, make sure the wireless communication switch is set in the “ON”
position.
Refer to Chapter 3, Tests and Diagnosti cs for more information on how to perform the test
program.
Check 1 Execute the 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.