Toshiba Personal Computer Washington- Satellite A300 Maintenance Manual
First edition Feb 2008
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 Satellite P300 Series 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
Intel, Intel SpeedStep, Pentium and Celeron 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.
i Link is a trademark of Sony Corporation.
TruSurround XT, Trubass, Dialog Clarity, SRS and (•)symbol are trademarks of SRS Labs,
Inc.
TruSurround XT technology is in corporated under license from SRS Labs, Inc.
Other trademarks and registered trademarks not listed above may be used in this manual.
Satellite P300Maintenance Manual (960-Q08) 2
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Preface
This maintenance manual describes how to perform hardware service maintenance for the
Toshiba Personal Computer Satellite A300 Series.
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.
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The manual is divided into the following parts:
Chapter 1 Hardware Overview describes the Satellite A300 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
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 typeface
below:
Table 1-10 Time required for charges of main battery ......................................................25
Table 1-11 Data preservation time.....................................................................................25
Table 1-12 Time required for charges of RTC battery.......................................................26
Table 1-13 AC adapter specifications................................................................................27
Satellite U300 and Satellite Pro U300 Maintenance Manual(960-Q08)
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Chapter 1 Hardware Overview
Features
1.1 Features
The Satellite P300 Satellite Pro P300 (Intel Platform) series are 2 spindlePCs running
Intel® Core Duo Processor T8100 (800MHz) or higher
Intel® Core Duo Processor T9300 (800MHz) or higher.
Intel® Pentium Dual Processor T2330 or higher.
Intel® Celeron 540 Processor or higher.
Intel® Core™2 Duo Processor (667MHz) T5450 or higher.
The features are listed below.
θ Microprocessor
Microprocessor that is used will be different by the model.
It supports processors as follows:
Intel Core2 Duo Processor
FSB : 667 MHz T5550(1.83GHz)
Toshiba keyboard module has (104/105/109 keys) with three LEDs design, Support
Windows keys & Application keys. Multi-langue support.
θ New Dummy card slot
The new card slot (dummy card) accommodates one 5mm Type II card. The slot
support 16-bit PC cards.
θ Optical devices
A DVD Super Multi drive is equipped.
θ Battery
The RTC battery is equipped inside the computer.
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It is good with no external power source for 1month on average.
The main battery is a detachable lithium ion battery.
6 cell Li-Ion 10.8v/4000mAh
9 cell Li-Ion 10.8v/6000mAh
θ USB (Universal Serial Bus)
3 USB ports are provided. The ports comply with the USB2.0 standard, which
enables data transfer speeds 40 times faster than USB1.1 standard. USB1.1 is also
supported.
• 10/100 LAN controller (Marvell 88E8040T-A0-NNC1C000)
• GIGA LAN controller (Marvell 88E8072-B1-NNC1C000)
θ Mini Card
Wireless LAN card (BTO)
5.4 GHz DSSS/OFDM LAN card is equipped. Conformity with IEEE 802.11b/g,
IEEE 802.11 a/g/n and IEEE 802.11a/b/g..
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Chapter 1 Hardware Overview
θ MODEM (Conexant x 1)
Supported by on board Modem + DAA daughter card.
Data and FAX transmission is available.
Supports ITU-TV.90.
The transfer speed of data receiving is 56kbps, of data sending is 33.6kbps and of
FAX is 14.4kbps. Actual speed depends on the quality of the line used.
Connected to telephone line through RJ11 MOD
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1.3 2.5-inch Hard Disk Drive
A compact, high-capacity HDD with a height of 9.5mm. Contains a 2.5-inch magnetic disk
and magnetic heads.
Figure 1-3 shows a view of the 2.5-inch HDD and Tables 1-1 and 1-2 list the specifications.
The DVD Super Multi drive accommodates either 12 cm (4.72-inch) or 8 cm (3.15-inch)
CD/DVD-ROM, CD-R/RW, DVD±R/±RW and DVD-RAM. It is a high-performance drive
that reads DVD-ROM at maximum 8-speed and CD at maximum 24-speed. Write speed of
DVD±R/±RW and DVD-RAM is different depending on the drive.
The DVD Super Multi drive is shown in Figure 1-4. The dimensions and specifications of the
DVD Super Multi drive are described in Table 1-4, Table 1-5.
Figure 1-4 DVD Super Multi drive
Table 1-4 DVD Super Multi drive outline dimensions
Parameter
Outline
dimension
Maker
Width
(mm)
Height
(mm)
Depth
(mm)
Mass
(g)
TST TST PNR PNR
TS-
L632H
122.4122.4 128 128
12.712.7 12.7 12.7
126126 134 134
104104 176.2 176.2
Standard Value
TS-L632P DVR-
KD08TBT
DVR-
KD08TBL
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Table 1-5 DVD Super Multi drive specifications (1/4)
CD-ROM Mode1
CD-ROM XA Mode2
(form1, form2)
Photo CD ( single and
multiple session)
Video CD
CD-DA
CD-Extra
Mixed-CD
CD-Text
CD-R
CD-RW(Supports
AM2)
HSCD-RW(Supports
AM2)
USCD-RW(Supports
AM2)
US+CD-RW(Supports
AM2)(*Read only)
DVD (DVD-5; Single
layer, Single side
4.7Gbytes)
DVD (DVD-9; Dual
layer, Single
CD-ROM Mode1
CD-ROM XA Mode2
(form1, form2)
Photo CD ( single and
multiple session)
Video CD
CD-DA
CD-Extra
Mixed-CD
CD-Text
CD-R
CD-RW(Supports AM2)
HSCD-RW(Supports
AM2)
USCD-RW(Supports
AM2)
US+CD-RW(Supports
AM2)(*Read only)
DVD (DVD-5; Single
layer, Single side
4.7Gbytes)
DVD (DVD-9; Dual
layer, Single
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1.5 Keyboard
The Satellite P300 keyboard has two different kinds of placement, one is for JP style and the
other is for US/UK style
Figure 1-5 is a view of the keyboard for US style
Figure 1-5 Keyboard for US style
Figure 1-6 is a view of the keyboard for UK style.
Figure 1-6 Keyboard for UK style
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Figure 1-7 is a view of the keyboard for JP style.
Figure 1-7 Keyboard for JP style
See Appendix E for details of the keyboard layout.
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1.6 TFT Color Display
The SatelliteP300 and Satellite Pro 300 Panel use CCFL to control backlight.
1.6.1 LCD Module with CCFL Backlight
Figure 1-8 ~ 1-11 shows a view of the LCD module and Table 1-8 lists the specifications.
Figure 1-8 LG-Philips LCD Module
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Figure 1-9 AUO LCD Module
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Figure 1-10 CMO LCD Module
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Figure 1-11 SAMSUNG LCD Module
Table 1-6 LCD module specifications
Specifications(WXGA+)
Item
Number of Dots 1,440 x 3(R,G,B) x 900
Dot spacing (mm)
Display Colors 262,144 colors
LG-Philips
LP171WP4-TLN1
AUO
B170PW06
0.255(H)× 0.2555(V)
CMO
N170C2-L02
Samsung
LTN170X2-L02-S
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1.6.2 CCFL Inverter Board
Table 1-7 lists the FL inverter board specifications.
Table1-7FLinverterboardspecifications
Specifications
Input
Output
Item
Voltage (V)
Power (W)
Voltage (Vrms)
Current
(f=55KHz)(mArms)
Foxconn
T18I095.00
8~20 8~20 8~20 8~20
7.5W 7.5W 7.5W 7.5W
612~945 612~945 612~945 612~945
Delta
DAC-08N035
AF
2.3±0.4 ~ 6.5±0.3
SUMIDA
TWS-449-308
TDK
TBD485NR
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1.7 Power Rails
Table 1-8 lists the power rail output specifications of Santa Rosa platform.
Table 1-8 Power supply output rating
Power supply(Yes/No)
Name
Voltage [V]
Power OFF
Suspend mode
Power OFF
Boot mode
No Battery
+5VPCU
+5V_S5
+5V
+5VSATA
USBPWR1
+5V_TP
VCCRTC
TH_FAN_POWER
+3VPCU
+3V_S5
+3VSUS
+3V
CCD_POWER
VCC_XD
+1.8VSUS
+1.5V
+1.25V
+1.05V
VCC_CORE
5
5
5 No No No
5 No No No
5 No No No
5 No No No
3.3
3.1~5 No No No
3.3
3.3
3.3
3.3 No No No
3.3 No No No
3.3 No No No
1.8
1.5 No No No
1.25 No No No
1.05 No No No
0.55~1.575 No No No
Yes Yes
Yes
Yes Yes Yes
Yes Yes
Yes
Yes
Yes
No No
No No
No No
No No
No
No
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Chapter 1 Hardware Overview
1.8 Batteries
The PC has the following two batteries.
θ Main battery
θ Real time clock (RTC) battery
Table 1-9 lists the specifications for these two batteries.
Table 1-9 Battery specifications
Battery Name Battery Element Output Voltage Capacity
Main battery
Real time clock
(RTC) battery
Sanyo
6 cell
Panasonic
6 cell
Sanyo
9 cell
Panasonic
ML1220/F1BE-
MOLEX-58ZL1
Lithium ion
Lithium ion 3V 17mAh
10.8v 4000mAh
10.8v 4000mAh
10.8v 6000mAh
1.8.1 Main Battery
The main battery is the primary power supply for the computer when the AC adapter is not
connected. In Standby, the main battery maintains the current status of the computer.
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Chapter 1 Hardware Overview
1.8.2 Battery Charging Control
Battery charging is controlled by a power supply microprocessor. The power supply
microprocessor controls power supply and detects a full charge when the AC adaptor and
battery are connected to the computer.
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. Refer to the
following Table 1-10.
Table 1-10 Time required for charges of main battery
Condition Charging Time
Power On Charge About 12 hoursPower Off Charge About 4 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
4. Charging current is abnormal
θ Data preservation time
When turning off the power in being charged fully, the preservation time is as
following Table 1-11.
Condition preservation time
Standby About 3 days
Hibernation About 1 month
Battery
Pack
3 cell Approximately 1.5 days(sleep mode)
6 cell Approximately 3 days(sleep mode)
9 cell Approximately 5 days(sleep mode)
Approximately 1 month(shutdown mode,All type of battery pack
Table 1-11 Data preservation time
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1.8.3 RTC Battery
The RTC battery provides the power supply to maintain the date, time, and other system
information in memory.
Table 1-12 lists the Time required for charges of RTC battery and data preservation time.
Table 1-12 Time required for charges of RTC battery
Condition Time
Power ON (Lights Power LED) About 24 hours
Data preservation tome (Full-charged) About a month
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1.9 AC Adapter
The AC adapter is used to charge the battery.
Table 1-13 lists the AC adapter specifications.
Table 1-13 AC adapter specifications
Parameter
With Led
Power 75W 90W 120W
Input voltage AC 100V/240V
Input frequency 50Hz/60Hz
Input current
Output voltage DC 19V
Output current 3.95A 4.74A 6.3A
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2 Troubleshooting Procedures
There are following two types of connections in the figure of board and module connection in
and after 2.3 Power Supply Troubleshooting.
(1) Cable connection is described in the figure as line.
(2) Pin connection is described in the figure as arrow.
<e.g.> Connection of modem
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2 Troubleshooting Procedures
2.2 Troubleshooting Flowchart
Use the flowchart in Figure 2-1 as a guide for determining which troubleshooting procedures
to execute. Before going through the flowchart steps, verify the following:
Ask him or her to enter the password if a password is registered.
Verify with the customer that Toshiba Windows is installed on the hard disk. Non-
Windows operating systems can cause the computer to malfunction.
Make sure all optional equipment is removed from the computer.
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Figure 2-1 Troubleshooting flowchart (1/2)
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Figure 2-1 Troubleshooting flowchart (2/2)
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2 Troubleshooting Procedures
If the diagnostics program cannot detect an error, the problem may be intermittent. The Test
program should be executed several times to isolate the problem. Check the Log Utilities
function to confirm which diagnostic test detected an error(s), and 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 test or Modem/LAN/Bluetooth
/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 found on the keyboard test (DIAGNOSTICS TEST) and pressed key
display test (ONLY ONE TEST), perform the Keyboard Troubleshooting Procedures
in Section 2.7.
5. If an error is found on the touch pad test (ONLY ONE TEST), perform the touch pad
Troubleshooting Procedures in Section 2.8.
6. If an error is detected on the display test, perform the Display Troubleshooting
Procedures in Section 2.9.
7. If an error is detected on the CD-ROM/DVD-ROM test, perform the Optical Disk
Drive Troubleshooting Procedures in Section 2.10.
8. If an error is detected on the modem test, perform the Modem Troubleshooting
Procedures in Section 2.11.
9. If an error is detected on the LAN test, perform the LAN 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 an error is detected on the VGA daughter card test, perform the VGA
Troubleshooting Procedures in Section 2.15.
13. If an error is detected on the fingerprint test, perform the fingerprint Troubleshooting
Procedures in Section 2.16.
14. If an error is detected on the Bluetooth test, perform the Bluetooth Troubleshooting
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Procedures in Section 2.17.
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2.3 Power Supply Troubleshooting
The power supply controller 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 LED indicates the power supply status:
Battery LED
DC IN LED
The Power Supply control displays the power supply status with the Battery LED and the DC
IN LED as listed in the tables below.
Table 2-1 Battery icon(Low cost)
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 white(Green) 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.
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Table 2-2 DC IN icon(Low cost)
DC IN icon Power supply status
Lights white(Green) DC power is being supplied from the AC adapter.
Blinks white(Green) Power supply malfunction*1
Doesn’t light Any condition other than those above.
*1 When the power supply controller detects a malfunction, the DC IN icon blinks
white. 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 white, 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 white or red, go to Procedure 4.
NOTE: Use a supplied AC adapter.
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Procedure 2. Error Code Check
The following table lists the error codes and error status names for the Diagnostic Tests.
Table 2-3 Error codes and error status names (1/2)
Device Name Error Code Error Status Name
(Common) FF Data Compare Error
Memory 02 Protected Mode Not Changed
?? Other Error
FDD 01 Bad Command Error
02 Address Mark Not Found
03 Write Protected
04 Record Not Found
06 Media Change Line Error
08 DMA Overrun Error
09 DMA Boundary Error
0C Select Media Error
10 CRC Error
20 FDC Error
40 Seek Error
80 Time Out Error
?? Other Error
HDD 01 Bad Command Error
02 Bad Address Mark Error
04 Record Not Found
05 HDC Not Reset Error
07 Drive Not Initialized
09 DMA Boundary Error
0A Bad Sector
0B Bad Track Error
10 ECC Error
11 ECC Recover Enabled
20 HDC Error
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80 Time Out Error
AA Drive Not Ready
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Table2 -3 Error codes and error status names (2/2)
Device Name Error Code Error Status Name
HDD
Cache Memory 02 Protect Mode Error
03 Caching Error
?? Other Error
Multimedia 01 Write Error
0F Invalid Drive
15 Drive Not Ready
?? Other Error
BB Undefined Error
CC Write Fault
E0 Status Error
F0 No Sense Error
?? Other Error
NOTE: If error status name is Other Error , please reference the Error Code for error
information
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Procedure 3 Connection Check
The wiring diagram related to the power supply is shown below:
Any of the connectors may be disconnected. Perform Check 1.
Check 1 Make sure the AC adapter and the AC power cord is firmly plugged into the DC
IN connector PCN4 (REV.G and Griffin) and wall outlet. If these cables are
connected firmly, go to Check 2.
Check 2 Replace the AC adapter and the AC power cord with new ones.
• If the DC IN icon does not light, go to Procedure 5.
• If the battery icon does not light, go to Check 3.
Check 3 Make sure the battery pack is installed in the computer correctly. If the battery is
properly installed and the battery icon still does not light, go to Procedure 4.
Procedure 4 Charging Check
Check if the power supply controller charges the battery pack properly. Perform the
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following procedures:
Check 1 Make sure the AC adapter is firmly plugged into the DC IN socket.
Check 2 Make sure the battery pack is properly installed. If it is properly installed, go to
Check 3.
Check 3 The battery pack may be completely discharged. Wait a few minutes to charge the
battery pack while connecting the battery pack and the AC adapter. If the battery
pack is still not charged, go to Check 4.
Check 4 The battery’s temperature is too high or low. Leave the battery for a while to
adjust it in the right temperature. If the battery pack is still not charged, go to
Check 5.
Check 5 Replace the battery pack with a new one. If the battery pack is still not charged,
go to Procedure 5.
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Procedure 5 Replacement Check
The power is supplied to the system board by the AC adapter. If either the AC adapter or the
system board was damaged, perform the following Checks.
To disassemble the computer, follow the steps described in Chapter 4, Replacement Procedures.
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.
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2.4 System Board Troubleshooting
This section describes how to determine if the system board is malfunctioning or not. 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
Procedure 3: Diagnostic Test Program Execution Check
Procedure 4: Replacement Check
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6
Procedure 1 Message Check
When the power is turned on, the system performs the Power On Self Test (POST) installed
in the BIOS ROM. The POST 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 MS-DOS or Windows XP is properly loaded, go to Procedure 4.
Check 1 If one of the following error messages is displayed on the screen, press the F1 key
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 screen appears to set
the system configuration. If error message (b) appears often when the power is
turned on, replace the RTC battery. If any other error message is displayed,
perform Check 2.
(a) *** Bad HDD type ***
Check system. Then press [F1] key ......
(b) *** Bad RTC battery ***
Check system. Then press [F1] key ......
(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 ......
(f) *** Bad check sum (CMOS) ***
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.
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7
If any other error message displays, perform Check 3.
Check 3 The IRT checks the system board. When the IRT detects an error, the system
stops or an error message appears.
If one of the following error messages (1) through (17), (24) or (25) is displayed,
go to Procedure 4.
If error message (18) is displayed, go to the Keyboard Troubleshooting
Procedures.
If error message (19), (20) or (21) is displayed, go to the 2.5” HDD
Troubleshooting Procedures.
If error message (22) or (23) is displayed, go to the USB FDD Troubleshooting
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Procedure 2 Debugging Port Check
Check the MiniPCI Debug board. The tool for debug port test is shown below.
Figure 2-2 A set of tool for debug port test
The test procedures are follows:
1. Replace Mini PCI debug port with Wireless LAN card, check LED in the Mini PCI
debug board
The following is a list of the Test Point codes written to port 80h at the start
of each routine, the beep codes issued for terminal errors, and a description
of the POST routine. Unless otherwise noted, these codes are valid for
Phoenix BIOS 4.0 Release 6.0.
NOTE: The following routines are sorted by their test point numbers were assigned in the
BIOS code. Their actual order as executed during POST can
Be quite different.
Code Beeps POST Routine Description
02h Verify Real Mode
03h Disable Non-Maskable Interrupt (NMI)
04h Get CPU type
06h Initialize system hardware
08h Initialize chipset with initial POST values
09h Set IN POST flag
0Ah Initialize CPU registers
0Bh Enable CPU cache
0Ch Initialize caches to initial POST values
0Eh Initialize I/O component
0Fh Initialize the local bus IDE
10h Initialize Power Management
11h Load alternate registers with initial POST values
12h Restore CPU control word during warm boot
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13h Initialize PCI Bus Mastering devices
Code Beeps POST Routine Description
14h Initialize keyboard controller
16h 1-2-2-3 BIOS ROM checksum
17h Initialize cache before memory autosize
18h 8254 timer initialization
1Ah 8237 DMA controller initialization
1Ch Reset Programmable Interrupt Controller
20h 1-3-1-1 Test DRAM refresh
22h 1-3-1-3 Test 8742 Keyboard Controller
24h Set ES segment register to 4 GB
26h Enable A20 line
28h Autosize DRAM
29h Initialize POST Memory Manager
2Ah Clear 512 KB base RAM
2Ch 1-3-4-1 RAM failure on address line xxxx*
2Eh 1-3-4-3 RAM failure on data bits xxxx* of low byte of memory bus
2Fh Enable cache before system BIOS shadow
30h 1-4-1-1 RAM failure on data bits xxxx* of high byte of memory bus
32h Test CPU bus-clock frequency
33h Initialize Phoenix Dispatch Manager
36h Warm start shut down
38h Shadow system BIOS ROM
3Ah Autosize cache
3Ch Advanced configuration of chipset registers
3Dh Load alternate registers with CMOS values
42h Initialize interrupt vectors
45h POST device initialization
46h 2-1-2-3 Check ROM copyright notice
48h Check video configuration against CMOS
49h Initialize PCI bus and devices
4Ah Initialize all video adapters in system
4Bh QuietBoot start (optional)
4Ch Shadow video BIOS ROM
4Eh Display BIOS copyright notice
50h Display CPU type and speed
51h Initialize EISA board
52h Test keyboard
54h Set key click if enabled
58h 2-2-3-1 Test for unexpected interrupts
59h Initialize POST display service
5Ah Display prompt "Press F2 to enter SETUP"
5Bh Disable CPU cache
5Ch Test RAM between 512 and 640 KB
60h Test extended memory
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62h Test extended memory address lines
64h Jump to UserPatch1
66h Configure advanced cache registers
67h Initialize Multi Processor APIC
68h Enable external and CPU caches
69h Setup System Management Mode (SMM) area
6Ah Display external L2 cache size
6Bh Load custom defaults (optional)
6Ch Display shadow-area message
6Eh Display possible high address for UMB recovery
70h Display error messages
72h Check for configuration errors
76h Check for keyboard errors
7Ch Set up hardware interrupt vectors
7Eh Initialize coprocessor if present
80h Disable onboard Super I/O ports and IRQs
81h Late POST device initialization
82h Detect and install external RS232 ports
83h Configure non-MCD IDE controllers
84h Detect and install external parallel ports
85h Initialize PC-compatible PnP ISA devices
86h Re-initialize onboard I/O ports.
87h Configure Motheboard Configurable Devices (optional)
88h Initialize BIOS Data Area
89h Enable Non-Maskable Interrupts (NMIs)
8Ah Initialize Extended BIOS Data Area
8Bh Test and initialize PS/2 mouse
8Ch Initialize floppy controller (optional)
8Fh Determine number of ATA drives (optional)
90h Initialize hard-disk controllers
91h Initialize local-bus hard-disk controllers
92h Jump to UserPatch2
93h Build MPTABLE for multi-processor boards
95h Install CD ROM for boot
96h Clear huge ES segment register
97h Fixup Multi Processor table
98h 1-2 Search for option ROMs. One long, two short beeps on checksum failure
99h Check for SMART Drive (optional)
9Ah Shadow option ROMs
9Ch Set up Power Management
9Dh Initialize security engine (optional)
9Eh Enable hardware interrupts
9Fh Determine number of ATA and SCSI drives
A0h Set time of day
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AAh Scan for F2 key stroke
ACh Enter SETUP
AEh Clear Boot flag
B0h Check for errors
B2h POST done - prepare to boot operating system
B4h 1 One short beep before boot
B5h Terminate QuietBoot (optional)
B6h Check password (optional)
B9h Prepare Boot
Bah Initialize DMI parameters
BBh Initialize PnP Option ROMs
BCh Clear parity checkers
BDh Display MultiBoot menu
BEh Clear screen (optional)
BFh Check virus and backup reminders
C0h Try to boot with INT 19
C1h Initialize POST Error Manager (PEM)
C2h Initialize error logging
C3h Initialize error display function
C4h Initialize system error handler
C5h PnPnd dual CMOS (optional)
C6h Initialize notebook docking (optional)
C7h Initialize notebook docking late
C8h Force check (optional)
C9h Extended checksum (optional)
D2h Unknown interrupt
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Code Beeps For Boot Block in Flash ROM
E0h Initialize the chipset
E1h Initialize the bridge
E2h Initialize the CPU
E3h Initialize system timer
E4h Initialize system I/O
E5h Check force recovery boot
E6h Checksum BIOS ROM
E7h Go to BIOS
E8h Set Huge Segment
E9h Initialize Multi Processor
EAh Initialize OEM special code
EBh Initialize PIC and DMA
ECh Initialize Memory type
EDh Initialize Memory size
EEh Shadow Boot Block
EFh System memory test
F0h Initialize interrupt vectors
F1h Initialize Run Time Clock
F2h Initialize video
F3h Initialize System Management Mode
F4h 1 Output one beep before boot
F5h Boot to Mini DOS
F6h Clear Huge Segment
F7h Boot to Full DOS
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Procedure 3 Diagnostic Test Program Execution Check
Execute the following tests from the Diagnostic Test Menu. These tests check the system
board. Refer to Chapter 3, Tests and Diagnostic, 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. VGA test
7. VGA Memory test
8. Hard Disk test
9. CPU Temperature test
10. Main Battery test
11. BIOS test
12. CD-ROM/DVD-ROM test
13. System Status LED test
14. Wireless LAN test
15. LAN/Modem/Sound test
16. UUID test-DMI Information (Write DMI)
If an error is detected during these tests, go to Procedure 4.
Procedure 4 Replacem ent Check
System board may be faulty. Disassemble the computer following the steps described in
Chapter 4, Replacement Procedures and replace system board with a new one.
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2.5 USB FDD Troubleshooting
To check if the USB FDD is malfunctioning or not, follow the troubleshooting procedures
below as instructed.
Procedure 1: FDD Head Cleaning Check
Procedure 2: Diagnostic Test Program Execution Check
Procedure 3: Connector Check and Replacement Check
Procedure 1 FDD Head Cleaning Check
FDD head cleaning is one option available in the Diagnostic Program.
After connecting USB FDD, insert the Diagnostics Disk in the floppy disk drive. Turn on the
computer and run the test. And then clean the FDD heads using the cleaning kit. If the 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 on the computer, go to Procedure 3.
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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.
Make sure the floppy disk is formatted correctly and that the write protect tab is disabled.
Floppy disk drive test error codes and their status names are listed in Table 2-7. 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
02h Address mark not found
03h Write protected
04h Record not found
06h Media replaced
08h DMA overrun error
09h DMA boundary error
10h CRC error
20h FDC error
40h Seek error
60h FDD not drive
80h Time out error (Not ready)
EEh Write buffer error
FFh Data compare error
Check 1 If the following message is displayed, disable the write protect tab on the floppy
disk by sliding the write protect tab to “write enable”. 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.
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Procedure 3 Connector Check and Replacement Check
USB FDD is connected to USB port on system board and US board. US board is also
connected to system board by cable. The connection of cable and board may be defective.
Otherwise, they may be faulty. Disassemble the computer following the steps described in
Chapter 4, Replacement Procedures and perform the following checks.
USB FDD can be connected to the following 4 ports on system board.
Check 1 Make sure USB FDD is firmly connected to USB port. If the connection is loose,
connect firmly and repeat Procedure 2. If the problem still occurs, go to Check 2.
NOTE: When checking the connection, be sure to check it with care for the followings.
1. Cable can not be disconnected from the connector.
2. Cable is connected straight to the connector.
3. Cable is connected all the way seated in the connector.
4. Cable can not be broken.
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Check 2 USB FDD may be faulty. Replace it with a new one. If the problem still occurs,
perform Check 3.
Check 3 Connect USB FDD to each port embedded on system board.
If it does not work properly when connected to CN6, CN7, CN31, CN35 or all
ports, perform Check 4.
Check 4 System board may be faulty. Replace it with a new one following the steps in
Chapter 4, Replacement Procedures.
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2.6 2.5” HDD Troubleshooting
To check if 2.5” HDD is malfunctioning or not, follow the troubleshooting procedures below
as instructed.
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 the 2.5” HDD
troubleshooting procedures are executed. Transfer the contents of the hard
disk to floppy disks or other storage drive(s). For the backup, refer to the
User’s Manual.
Procedure 1 Partition Check
Insert the Toshiba MS-DOS system disk and start the computer. Perform the following
checks:
Check 1 Input C: and press Enter. If you cannot change to drive C, go to Check 2. If you
can change to drive C, go to Procedure 2.
Check 2 Input FDISK and press Enter. Choose Display Partition Information from the
FDISK menu. If drive C is listed in the Display Partition Information, go to Check
3. If drive C is not listed, return to the FDISK menu and choose the option to
create a DOS partition or a logical DOS drive on drive C. If the problem still
occurs, 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. Then go to Procedure 2.
Check 4 Remove the system disk from the FDD and reboot the computer. If the problem
still occurs, go to Procedure 2. Otherwise, the 2.5” HDD is operating normally.
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Procedure 2 Message Check
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 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.
HDC ERROR
or
HDD #X 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.
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Procedure 3 Format Check
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 an 2.5” HDD using MS-DOS FORMAT command. Type as FORMAT
C:/S/U.
If 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 2.5” HDD using MS-DOS FORMAT
command.
Check 3 Using the Diagnostic Disk, format 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 2.5” HDD using the Tests and Diagnostic program, go to
Procedure 4.
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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. The
error codes and statuses are described in Table 2-8. If an error code is not displayed but the
problem still occurs, go to Procedure 5.
Table 2-8 2.5” Hard disk drive error code and status
Code Status
05 HDD - HDC NOT RESET ERROR
07 HDD - DRIVE NOT INITIALIZE
09 HDD - DMA BOUNDARY ERROR
0B HDD - BAD TRACK ERROR
BB HDD - UNDEFINED ERROR
08 HDD - OVERRUN ERROR (DRQ ON)
01 HDD - BAD COMMAND ERROR
02 HDD - ADDRESS MARK NOT FOUND
04 HDD - RECORD NOT FOUND ERROR
10 HDD - ECC ERROR
20 HDD - HDC ERROR
40 HDD - SEEK ERROR
80 HDD - TIME OUT ERROR
11 HDD - ECC RECOVER ENABLE
AA HDD - DRIVE NOT READY
CC HDD - WRITE FAULT
E0 HDD - STATUS ERROR
0A HDD - BAD SECTOR
EE HDD - ACCESS TIME ERROR
DA HDD - NO HDD
12 HDD - DMA CRC ERROR
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Procedure 5 Connector Check and Replacement Check
HDD(s) is/are connected to the connector(s) on the system board. The connection of HDD(s)
and board may be defective. Otherwise, they may be faulty. Disassemble the computer
following instructions in Chapter 4, Replacement Procedures and perform the following
checks.
Check 1 Make sure HDD(s) is/are firmly connected to the connector(s) on the system
board.
If any of the connections are loose, reconnect firmly and repeat Procedure 1. If the
problem still occurs, go to Check 2.
Check 2 (One of) HDD(s) may be faulty. Replace it with a new one following the
instructions in Chapter 4, Replacement Procedures and check the operation. If the
problem still occurs, perform Check 3.
Check 3 System board may be faulty. Replace it with a new one following the instructions
in Chapter 4, Replacement Procedures.
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2.7 Keyboard Troubleshooting
To check if the computer’s keyboard is malfunctioning or not, follow the troubleshooting
procedures below as instructed.
Procedure 1: Diagnostic Test Program Execution Check
Procedure 2: Connector and Replacement Check
Procedure 1 Diagnostic Test Program Execution Check
Execute the Keyboard Test (DIAGNOSTIC TEST) and Pressed key display test (ONLY
ONE 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, keyboard is functioning
properly.
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Procedure 2 Connector and Replacement Check
The connection of cable and board may be defective. Otherwise, they may be faulty.
Disassemble the computer following the steps described in Chapter 4, Replacement Procedures, and perform the following checks:
Check 1 Make sure keyboard cable is firmly connected to system board.
If the connection is loose, reconnect firmly and repeat Procedure 1. If the problem
still occurs, go to Check 2.
Check 2 Keyboard may be faulty. Replace it with a new one following the instructions in
Chapter 4, Replacement Procedures. If the problem still occurs, perform Check 3.
Check 3 System board may be faulty. Replace it with a new one following the instructions
in Chapter 4, Replacement Procedures.
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2.8 Touch pad Troubleshooting
To check if the computer’s touch pad is malfunctioning or not, follow the troubleshooting
procedures below as instructed.
Procedure 1: Diagnostic Test Program Execution Check
Procedure 2: Connector and Replacement Check
Procedure 1 Diagnostic Test Program Execution Check
Execute the Touch pad test (ONLY ONE 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, touch pad is functioning
properly.
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Procedure 2 Connector and Replacement Check
The connection of cable and board may be defective. Otherwise, they may be faulty.
Disassemble the computer following the steps described in Chapter 4, Replacement Procedures, and perform the following checks:
Check 1 Make sure the cable is firmly connected to system board.
If the connection is loose, reconnect firmly and repeat Procedure 1. If the problem
still occurs, go to Check 2.
Check 2 Touch Pad or the cable may be faulty. Replace it with a new one following the
instructions in Chapter 4, Replacement Procedures. If the problem still occurs,
perform Check 3.
Check 3 System board may be faulty. Replace it with a new one following the instructions
in Chapter 4, Replacement Procedures
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2.9 Display Troubleshooting
To check if the computer’s display is malfunctioning or not, follow the troubleshooting
procedures below as instructed.
Procedure 1: External Monitor Check
Procedure 2: Diagnostic Test Program Execution Check
Procedure 3: Connector and Cable Check
Procedure 4: Replacement Check
Procedure 1 External Monitor Check
Connect an external monitor to the computer’s external monitor port, then boot the computer.
The computer automatically detects the external monitor.
If the external monitor works correctly, the internal LCD may be faulty. Go to Procedure 3.
If the external monitor appears to have the same problem as the internal monitor, system
board may be faulty. Go to Procedure 2.
Procedure 2 Diagnostic Test Program Execution Check
The Display Test program is stored in Diagnostics disk. This program checks the display
controller on system board. Insert the Diagnostics disk in the USB FDD, 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.
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Procedure 3 Connector and Cable Check
LCD Module is connected to system board by an LCD/FL cable. FL inverter board is also
connected to system board by an LCD/FL cable. And, fluorescent lamp is connected to FL
inverter board by HV cable. Their cables may be disconnected from system board or FL
inverter board. Disassemble the computer following the steps described in Chapter 4,
Replacement Procedures.
If the connection is loose, reconnect firmly and restart the computer. If the problem still
occurs, go to Procedure 4.
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Procedure 4 Replacem ent Check
Fluorescent lamp, FL inverter, LCD module, HV cable and LCD/FL cable are connected to
display circuits. Any of these components may be faulty. Refer to Chapter 4, Replacement Procedures, for instructions on how to disassemble the computer and then perform the
following checks:
If fluorescent lamp does not light, perform Check 1.
If characters or graphics on the internal display are not displayed clearly, perform
Check 4.
If some screen functions do not operate properly, perform Check 4.
If fluorescent lamp remains lit when the display is closed, perform Check 5.
Check 1 Replace fluorescent lamp with a new one following the instructions in Chapter 4,
Replacement Procedures and test the display again. If the problem still occurs,
perform Check 2.
Check 2 LCD/FL cable may be faulty. Replace FL/LCD cable with a new one following the
instructions in Chapter 4, Replacement Procedure and test the display again. If the
problem still occurs, perform Check 3.
Check 3 FL inverter may be faulty. Replace FL inverter with a new one following the
instructions in Chapter 4, Replacement Procedure and test the display again. If the
problem still occurs, perform Check 4.
Check 4 LCD module may be faulty. Replace LCD module with a new one following the
instructions in Chapter 4, Replacement Procedure and test the display again. If the
problem still occurs, perform Check 5.
Check 5 System board may be faulty. Replace it with a new one following the instructions
in Chapter 4, Replacement Procedure.
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2.10 Optical Disk Drive Troubleshooting
To check if optical disk drive is malfunctioning or not, follow the troubleshooting procedures
below 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 CD-ROM/DVD-ROM Test in the Diagnostic Program. Refer to Chapter 3, Tests
and Diagnostics for more information on how to perform the test program.
Prepare the tools before the test.
If any error is detected by the test, go to Procedure 2.
Procedure 2 Connector Check and Replacement Check
The connection of optical disk drive and system board may be defective. Otherwise, they may
be faulty. Disassemble the computer following the steps described in Chapter 4 and perform
the following checks:
Check 1 Make sure optical disk drive is firmly connected to the connector on system board.
If the connection is loose, reconnect it firmly and return to Procedure 2. If the
problem still occurs, perform Check 2.
Check 2 Optical disk drive may be faulty. Replace it with a new one following the steps in
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Chapter 4. If the problem still occurs, perform Check 3.
Check 3 System board may be faulty. Replace it with new one following the instructions in
Chapter 4.
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2.11 Modem Troubleshooting
To check if modem is malfunctioning or not, follow the troubleshooting procedures below as
instructed.
Procedure 1: Diagnostic Test Program Execution Check
Procedure 2: Connector Check and Replacement Check
Procedure 1 Diagnostic Test Program Execution Check
Execute Modem test in 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, perform Procedure 2.
Procedure 2 Connector Check and Replacement Check
MDC (Modem Daughter Card) is used as the modem for this computer. MDC is connected to
system board by connector CN43(REV.G) or CN43(GRIFFIN). And also, MDC is connected
to system and LAN board by modem cable. If modem malfunctions, the connection of cable,
board and module may be defective. Otherwise, they may be faulty.
Disassemble the computer following the steps described in Chapter 4 and perform the
following checks:
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Check 1 Make sure the following connections are firmly connected.
If any connector is disconnected, connect it firmly and return to Procedure 1. If the
problem still occurs, perform Check 2.
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Check 2 Modem cable may be faulty. Replace it with a new one. If the problem still occurs,
perform Check 3.
Check 3 MDC may be faulty. Replace it with a new one following the steps in Chapter 4. If
the problem still occurs, perform Check 4.
Check 4 Cable between MDC and system board may be faulty. Replace it with a new one
following the instructions in Chapter 4. If the problem still occurs, perform Check
5.
Check 6 System board may be faulty. Replace it with a new one following the instruction in
Chapter 4.
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2.12 LAN Troubleshooting
To check if the computer’s LAN is malfunctioning or not, follow the troubleshooting
procedures below as instructed.
Procedure 1: Diagnostic Test Program Execution Check
Procedure 2: Connector Check and Replacement Check
Procedure 1 Diagnostic Test Program Execution Check
Execute LAN test in the LAN/Modem 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
The LAN function is embedded on system board. If LAN malfunctions, its connection is
defective or LAN cable and system board may be faulty.
Check 1 Make sure LAN cable is firmly connected to the connector CN9. If the problem
still occurs, perform Check 2.
Check 2 LAN cable may be faulty. Replace it with a new one. If the problem still occurs,
perform Check 3.
Check 3 System board may be faulty. Replace it with a new one following the instruction in
Chapter 4.
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2.13 Wireless LAN Troubleshooting
To check if the computer's Wireless LAN is malfunctioning or not, follow the troubleshooting
procedures below as instructed.
Before starting the test, make sure the wireless communication switch is set in the ON
position.
Check 1 Execute Wireless LAN test program to check the transmitting-receiving function
of wireless LAN. You will need a second computer that can communicate by
wireless LAN. Perform the test following the instructions described in Chapter 3.
If the computer passes the test, the function is correctly working. If the computer
does not pass the test, perform Procedure 2.
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7
Procedure 2 Antennas' Connection Check
The wireless LAN function-wiring diagram is shown below:
Any of the connections may be defective. Disassemble the computer following the steps
described in Chapter 4, Replacement Procedures, and perform the following checks:
Check 1 Make sure 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 wireless LAN card (Mini-PCI) is firmly connected to the CN21 on
system board. If the connector is defective, connect it firmly and perform
Procedure 1. If the problem still occurs, perform Check 3.
Check 3 Make sure that wireless LAN antenna cables (black and white) are firmly
connected to the connectors on Wireless LAN card. If wireless LAN antenna
cables are not connected properly, connect them firmly and perform Procedure 1.
If the problem still occurs, go to the procedure 3.
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Procedure 3 Replacement Check
Wireless LAN card, wireless LAN antenna or system board may be faulty. Refer to Chapter 4,
Replacement Procedures, for instructions on how to disassemble the computer and then
perform the following checks:
Check 1 Wireless LAN antenna may be faulty. Replace it with a new one following the
instructions in Chapter 4, Replacement Procedures. If the problem still occurs,
perform Check 2.
Check 2 Wireless LAN card may be faulty. Replace it with a new one following the
instructions in Chapter 4, Replacement Procedures. If the problem still occurs,
perform Check 3.
Check3 System board may be faulty. Replace it with a new one following the instructions
in Chapter 4, Replacement Procedures.
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Troubleshooting Procedures
2.14 Sound Troubleshooting
To check if the sound function is malfunctioning or not, follow the troubleshooting procedures
below as instructed.
The connection of sound system is shown in the following figure.
As the connection may be defective, disassemble the PC and check each connection.
If the problem still occurs, go to Procedure 2.
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Troubleshooting Procedures
Procedure 2 Replacement Check
If External microphone/Headphone does not work properly, perform check 1.
If Internal microphone /Speaker does not work properly, perform check 2.
If HP out does not work properly, perform check 3.
If Volume control does not work properly, perform check 4.
Check 1 External microphone/Headphone may be faulty. Replace it with a new one
following the steps in Chapter 4.
Check 2 Internal microphone /Speaker may be faulty. Replace it with a new one following
the steps in Chapter 4. If the problem still occurs, perform Check 5.
Check 3 HP out may be faulty. Replace it with a new one following the steps in Chapter 4.
Check 4 Volume control may be faulty. Replace it with a new one following the steps in
Chapter 4.
Check 5 Flat cable between CN5 and CN39 may be faulty. Replace it with new cable
following the instructions in Chapter 4.
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Troubleshooting Procedures
2.15 Fingerprint Troubleshooting
To check if the computer’s Fingerprint is malfunctioning or not, follow the troubleshooting
procedures below as instructed.
Procedure 1: Connector Check and Replacement Check
Procedure 1 Diagnostic Test Program Execution Check
Execute Fingerprint test in the test program. Refer to Chapter 3, Tests and Diagnostics for
more information on how to perform the test program.
If any error is detected, perform Procedure 2.
Procedure 2 Connector Check and Replacement Check
The Fingerprint function is embedded on system board. If Fingerprint malfunctions, its
connection is defective or Fingerprint cable and system board may be faulty.
Check 1 Make sure Fingerprint cable is firmly connected to the connector CN11(REV.G)or
CN11(Griffin). If the problem still occurs, perform Check 2.
Check 2 Fingerprint cable may be faulty. Replace it with a new one. If the problem still
occurs, perform Check4.
Check 3 Fingerprint may be faulty. Replace it with a new one following the steps in
Chapter 4. If the problem still occurs, perform Check 4.
Check 4 System board may be faulty. Replace it with a new one following the instruction in
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Troubleshooting Procedures
Chapter 4.
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2.16 Bluetooth Troubleshooting
To check if the computer’s Bluetooth is malfunctioning or not, follow the troubleshooting
procedure below as instructed.
Procedure 1: Connector Check and Replacement Check
Procedure 1 Connector Check and Replacement Check
The Bluetooth function is connected to system board. If Bluetooth malfunctions, its
connection is defective or Bluetooth cable and system board may be faulty.
Check 1 Make sure Bluetooth cable is firmly connected to the connector CN14(REV.G)or
CN14(Griffin). If the problem still occurs, perform Check 2.
Check 2 Bluetooth cable may be faulty. Replace it with a new one. If the problem s till
occurs, perform Check 3.
Check 3 Bluetooth may be faulty. Replace it with a new one following the steps in Chapter
4. If the problem still occurs, perform Check 4.
Check 4 System board may be faulty. Replace it with a new one following the instruction in
Chapter 4.
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Troubleshooting Procedures
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Test Program for Field.
Chapter 3
Diagnostic Programs
Satellite P300 and Satellite Pro P300 Tests and Diagnostics Manual 1
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