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Toshiba
P25 manual Hardware Overview
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P25
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Troubleshooting
Install
Bluetooth
Wireless LAN Unit
Config Check Test
Tests and Diagnostics
Disassembly Procedures
Procedure 1 Power Status Check
Main Battery
Replacement Procedures
Page 12
Image 12
1 Hardware Overview
1-ii
Satellite
P20-25
Series Maintenance Manual
Page 11
Page 13
Page 12
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Page 13
Contents
Toshiba Corporation
Copyright
Disclaimer
Trademarks
Safety Precautions
Preface
Satellite P20-25 Series Maintenance Manual
Conventions
Acronyms
Satellite P20-25 Series Maintenance Manual
Table of Contents
Tests and Diagnostics
Replacement Procedures
CPU HDD
Appendices
Hardware Overview
Hardware Overview
Chapter Contents
Hardware Overview
Features
Features Hardware Overview
Hardware Overview Features
Features Hardware Overview
Hardware Overview Features
System Unit
System Unit Hardware Overview
Hardware Overview System Unit
AUX
2.5-inch Hard Disk Drive
Hardware Overview Removable Drives
Removable Drives
Removable Drives Hardware Overview
1 3.5-inch Floppy Disk Drive
DVD-R/-RW Drive
Read speeds
DVD-ROM Drive
Matsushita SR-8177 256 Kbytes Max Toshiba SD-C2612
DVD Multi-Drive
Combo Drive
CD-RW
Power Supply
Hardware Overview Power Supply
Power Supply Hardware Overview
LB2
Main Battery
Batteries
Hardware Overview Batteries
Satellite P20-25 Series Maintenance Manual
RTC battery
Status Time
Batteries Hardware Overview
Chapter Troubleshooting Procedures
Troubleshooting Procedures
Chapter Contents
Figures
Tables
Troubleshooting Introduction
Troubleshooting Introduction Troubleshooting Procedures
Troubleshooting Flowchart
Troubleshooting Procedures Troubleshooting Flowchart
Troubleshooting Flowchart Troubleshooting Procedures
Troubleshooting flowchart 1/2
Troubleshooting flowchart 2/2
Troubleshooting Flowchart Troubleshooting Procedures
Troubleshooting Procedures Troubleshooting Flowchart
Power Supply Troubleshooting
Power Supply Troubleshooting Troubleshooting Procedures
Troubleshooting Procedures Power Supply Troubleshooting
Procedure 1 Power Status Check
Battery LED
Battery State LED colors Definition
Procedure 2 Adaptor / battery replacement
AC-IN LED
Battery
Procedure 3 Power supply connection check
Procedure 4 Diagnostic check
Procedure 5 Replacement check
Display Troubleshooting
Troubleshooting Procedures Display Troubleshooting
Display Troubleshooting Troubleshooting Procedures
Procedure 1 External display check
Procedure 2 Diagnostic check
Procedure 3 Connector and replacement check
FDD Troubleshooting
FDD Troubleshooting Troubleshooting Procedures
Troubleshooting Procedures FDD Troubleshooting
Procedure 1 FDD head cleaning check
Procedure 3 Connector check and replacement check
Keyboard Troubleshooting
Keyboard Troubleshooting Troubleshooting Procedures
Troubleshooting Procedures Keyboard Troubleshooting
Procedure 1 External keyboard check
External USB Devices Troubleshooting
External USB device troubleshooting process
Procedure 1 External device and connection check
Procedure 2 Replace system board
TV-Out Failure Troubleshooting
TV-Out Failure Troubleshooting Troubleshooting Procedures
Troubleshooting Procedures TV-Out Failure Troubleshooting
Procedure 1 TV connection check
Procedure 2 TV set check
Printer Port Troubleshooting
Printer Port Troubleshooting Troubleshooting Procedures
Troubleshooting Procedures Printer Port Troubleshooting
Procedure 1 Diagnostic check
Procedure 2 Printer port loopback check
Procedure 3 Replace system board
TouchPad Troubleshooting
Touch Pad Troubleshooting Troubleshooting Procedures
Troubleshooting Procedures TouchPad Troubleshooting
Procedure 1 TouchPad connection check
Procedure 2 TouchPad replacement check
Speaker Troubleshooting
Speaker Troubleshooting Troubleshooting Procedures
Troubleshooting Procedures Speaker Troubleshooting
Procedure 1 Audio source test
Procedure 2 Earphone test
Procedure 3 Connection check
Optical Drive Troubleshooting
Optical Drive Troubleshooting Troubleshooting Procedures
Troubleshooting Procedures Optical Drive Troubleshooting
Procedure 1 Audio CD check
Procedure 2 Drive cleaning check
Procedure
Procedure 5 Connection check and replacement check
Modem Troubleshooting
Troubleshooting Procedures Modem Troubleshooting
Modem Troubleshooting Troubleshooting Procedures
Procedure 1 Telephone line connection check
Procedure 2 Modem card connection check
Procedure 3 Modem replacement check
Pcmcia Troubleshooting
Troubleshooting Procedures Pcmcia Troubleshooting
Pcmcia Troubleshooting Troubleshooting Procedures
Procedure 1 Sycard test
Procedure 2 Pcmcia socket replacement check
Ieee 1394 Troubleshooting
Troubleshooting Procedures Ieee 1394 Troubleshooting
Ieee 1394 Troubleshooting Troubleshooting Procedures
Procedure 1 Ieee 1394 device check
Procedure 3 Connection and replacement check
Wireless LAN Troubleshooting
Troubleshooting Procedures Wireless LAN Troubleshooting
Wireless LAN Troubleshooting Troubleshooting Procedures
Procedure 2 Connector and replacement check
Bluetooth Troubleshooting
Troubleshooting Procedures Bluetooth Troubleshooting
Bluetooth Troubleshooting Troubleshooting Procedures
Troubleshooting Procedures Bluetooth Troubleshooting
Chapter Tests and Diagnostics
Tests and Diagnostics
Contents
Tests and Diagnostics
Diagnostic Test
Diagnostic Test Tests and Diagnostics
Executing the Diagnostic Test
Tests and Diagnostics Executing the Diagnostic Test
Executing the Diagnostic Test3. Tests and Diagnostics
Tests and Diagnostics Executing the Diagnostic Test
Executing the Diagnostic Test Tests and Diagnostics
Config Check Test
Tests and Diagnostics Config Check Test
DMI Check Test Tests and Diagnostics
DMI Check Test
Tests and Diagnostics PIO Loopback Test
PIO Loopback Test
Ieee 1394 Test Tests and Diagnostics
Ieee 1394 Test
Tests and Diagnostics Speaker Audio Test
Speaker Audio Test
Fan ON/OFF Test Tests and Diagnostics
Fan ON/OFF Test
Main Battery Charge Test
Tests and Diagnostics Main Battery Change Test
FDD Test Tests and Diagnostics
FDD Test
Tests and Diagnostics CD-ROM Test
CD-ROM Test
Keyboard Test Tests and Diagnostics
Keyboard Test
Tests and Diagnostics Keyboard Test
Keyboard Test Tests and Diagnostics
Tests and Diagnostics Mouse Pad Test
Mouse Pad Test
Mouse Pad Test Tests and Diagnostics
LCD Pixels Mode Test
Tests and Diagnostics LCD Pixels Mode Test
Lid Switch Test
Lid Switch Test Tests and Diagnostics
Tests and Diagnostics HDD R/W Test
HDD R/W Test
HDD R/W Test Tests and Diagnostics
Tests and Diagnostics LAN Test
LAN Test
LAN Test Tests and Diagnostics
Tests and Diagnostics RTC Test
RTC Test
CD Control Button Test Tests and Diagnostics
CD Control Button Test
Tests and Diagnostics RTC Test
Chapter Replacement Procedures
Replacement Procedures
General
Replacement Procedures
General Replacement Procedures
General
Replacement Procedures General
Safety Precautions
Before You Begin
Disassembly Procedures
Assembly Procedures
Tools and Equipment
Battery
Battery Replacement Procedures
Removing the Battery Pack
Removing the battery pack
Replacement Procedures Battery
Installing the Battery Pack
PC Card Replacement Procedures
PC Card
Removing a PC Card
Pressing the eject button
Replacement Procedures PC Card
Removing the PC Card
Installing the PC Card
Replacement Procedures Removable modules
Removable modules
Removable modules Replacement Procedures
Removing the Main Module
Unlock the main module bay lock
Removing the main module
Installing the Main Module
Engage the main module bay latch lock
Optical Drive Replacement Procedures
Optical Drive
Disassembling the Optical Drive
Removing the bracket screws
Replacement Procedures Optical Drive
Reassembling the Optical Drive
Replacement Procedures TV Tuner
TV Tuner
Disassembling the TV Tuner
Remove seven M2⋅8 screws securing the TV tuner case
TV Tuner Replacement Procedures
Reassembling the TV Tuner
Secure the lid of the TV tuner case with seven M2⋅8 screws
Replacement Procedures Removable HDD
Removable HDD
Disassembling the Removable HDD
Opening the removable HDD container
Removable HDD Replacement Procedures
Removing the HDD case screws
Replacement Procedures Removable HDD
Reassembling the Removable HDD
Replacement Procedures Removable FDD
Removable FDD
Disassembling the Removable FDD
Removing the FDD bracket screws
Removable FDD Replacement Procedures
Reassembling the Removable FDD
Wireless LAN Unit
Replacement Procedures Wireless LAN Unit
Removing the Wireless LAN Unit
Lift off the wireless LAN compartment cover
Wireless LAN Unit Replacement Procedures
11 Removing the wireless LAN unit
Installing the Wireless LAN Unit
Expansion Memory Replacement Procedures
Expansion Memory
Removing the Expansion Memory
12 Removing the expansion memory cover
Replacement Procedures Expansion Memory
13 Removing the expansion memory
Installing the Expansion Memory
Modem / Bluetooth Unit
Replacement Procedures Modem / Bluetooth Unit
Removing the Modem / Bluetooth Unit
14 Removing the modem / Bluetooth unit cover
Modem / Bluetooth Unit Replacement Procedures
15 Removing the modem / Bluetooth unit screws
Installing the Modem / Bluetooth Unit
12 CPU Replacement Procedures
12 CPU
Removing the CPU
16 Removing the CPU compartment cover
Replacement Procedures 12 CPU
17 Removing the heat sink
18 Removing the CPU
Installing the CPU
13 HDD Replacement Procedures
13 HDD
Replacement Procedures 13 HDD
Removing the HDD
19 Removing the HDD unit cover screws
21 Removing the aluminum HDD shielding and connector
20 Removing the HDD unit case screws
Installing the HDD
Keyboard Replacement Procedures
Keyboard
Removing the Keyboard
Open the display panel
Replacement Procedures Keyboard
Remove two M2.5⋅3 silver screws securing the keyboard
23 Removing keyboard cable and keyboard
Installing the Keyboard
TOP Cover Replacement Procedures
Top Cover
Removing the Top Cover
Remove the keyboard, HDD and main module
Replacement Procedures TOP Cover
25 Removing the screws from the computer underside
Installing the Top Cover
Replacement Procedures Function Key Board
Function Key Board
Removing the Function Key Board
Remove the keyboard, HDD, main module and top cover
Function Key Board Replacement Procedures
Installing the Function Key Board
LED / Power Button Board
Replacement Procedures LED / Power Button Board
Removing the LED / Power Button Board
27 Removing the LED/power button board
LED / Power Button Board Replacement Procedures
Installing the LED / Power Button Board
Replacement Procedures TouchPad
TouchPad
Removing the TouchPad
28 Removing the TouchPad button board
TouchPad Replacement Procedures
Installing the TouchPad
Display Assembly
Replacement Procedures Display Assembly
Removing the Display Assembly
29 Removing the wireless LAN compartment cover
Display Assembly Replacement Procedures
30 Removing the wireless LAN compartment cover
31 Removing the hinge cover
Replacement Procedures Display Assembly
Installing the Display Assembly
Replacement Procedures System Board
System Board
Removing the System Board
System Board Replacement Procedures
Remove the four hexagonal port screws
34 Removing the hexagonal port screws
Remove the low I/O cover
35 Removing the system board screws and cables
Installing the System Board
Seat the system board and secure with three M2.5⋅6 screws
Replacement Procedures Direct Play Button Board
36 Removing the Direct Play cover assembly
Direct Play Button Board
Removing the Direct Play Button Board
Direct Play Button Board Replacement Procedures
Installing the Direct Play Button Board
Replacement Procedures CIR Board
CIR Board
Removing the CIR Board
37 Removing the CIR board
CIR Board Replacement Procedures
Installing the CIR Board
Replacement Procedures Direct play LED board
Direct play LED board
Removing the Direct Play LED Board
38 Removing the direct play LED board
Direct play LED board Replacement Procedures
Installing the Direct Play LED Board
Secure the direct play LED FPC to the system board
Replacement Procedures Audio Board
Audio Board
Removing the Audio Board
39 Removing the audio board screws
Audio Board Replacement Procedures
Installing the Audio Board
Replacement Procedures Speakers
Speakers
Removing the Speakers
40 Removing the speaker screws
Speakers Replacement Procedures
Remove two M2.5⋅4 screws securing each speaker
41 Removing the speakers
Installing the Speakers
Fan Set Replacement Procedures
Fan Set
Removing the Fan Set
42 Removing the inner chassis fan screws
Replacement Procedures Fan Set
43 Removing the outer chassis fan screws
Installing the Fan Set
Replacement Procedures Display Mask
Display Mask
Removing the Display Mask
44 Removing the display mask screws
Display Mask Replacement Procedures
Installing the Display Mask
Replacement Procedures FL Inverter Board
FL Inverter Board
Removing the FL Inverter Board
45 Removing the FL inverter board
FL Inverter Board Replacement Procedures
Installing the FL Inverter Board
Replacement Procedures LCD Module
LCD Module
Removing the LCD Module
46 Removing the LCD module
Pull out LCD cable from LCD connector
47 Removing the LCD cable
Installing the LCD Module
Secure LCD cable with one M2.5⋅4 screw
Appendices
Appendices
Appendix Contents
Figure B.1 System Board FRDSY* Bottom View
Table D-7
App-vi
Precautions for handling the LCD module
Appendix a Handling the LCD Module
CRT
Satellite P20-25 Series Maintenance Manual
Satellite P20-25 Series Maintenance Manual
Satellite P20-25 Series Maintenance Manual
Satellite P20-25 Series Maintenance Manual
Appendix B Board Layout
System Board FRDSY* Bottom View
System Board FRDSY* Top View
Figure B-2 System board FRDSY* layout Top
Table B-1 System board ICs and connectors top and bottom
Mark Number Name
Table B-2 System board ICs and connectors top and bottom
PCN1
System Board JP24/JP26 Sodimm I/F 144-pin
Table C-1 Sodimm I/F pin assignments 144-pin 1/4
Table C-1 Sodimm I/F pin assignments 144-pin 2/4
Table C-1 Sodimm I/F pin assignments 144-pin 3/4
Table C-1 Sodimm I/F pin assignments 144-pin 4/4
JP1 LCD I/F 40-pin
Table C-2 LCD I/F pin assignments 40-pin
JP15 RGB I/F 15-pin
Table C-3 RGB I/F pin assignments 15-pin
JP34 HDD I/F 44-pin
Table C-4 HDD I/F pin assignments 44-pin
JP28 Main Module I/F 60-pin
Table C-5 CD-ROM I/F pin assignments 50-pin
JP29 Second Module I/F 60-pin
JP14 Parallel I/F 25-pin
Table C-6 Parallel I/F pin assignments 25-pin
JP21 PC Card I/F 150-pin
Table C-7 PC Card I/F pin assignments 154-pin 1/3
Table C-7 PC Card I/F pin assignments 154-pin 2/3
S2 IORD#
Table C-7 PC Card I/F pin assignments 154-pin 3/3
JP27 Mini PCI I/F 124-pin
Table C-8 Mini PCI I/F pin assignments 124-pin 1/2
Table C-8 Mini PCI I/F pin assignments 124-pin1/2
AC Adaptor Connector 3-pin---Find Power Team
10 JP22, JP23, JP25 Fan I/F 3-pin
Microphone 6-pin
Headphone Connector 6-pin
Table C-12 Headphone Connector pin assignments 6-pin
Satellite P20-25 Series Maintenance Manual
Appendix D Keyboard Scan/Character Codes
Table D-1 Scan codes set 1 and set 2 1/4
Table D-1 Scan codes set 1 and set 2 2/4
Table D-1 Scan codes set 1 and set 2 3/4
ALT R
Table D-1 Scan codes set 1 and set 2 4/4
Table D-2 Scan codes with left Shift key
Table D-3 Scan codes in Numlock mode
Table D-4 Scan codes with Fn key
Table D-5 Scan codes in overlay mode
Table D-6 No.124 key scan code
Table D-7 No.126 key scan code
United States US Keyboard
United Kingdom UK Keyboard
Spanish SP Keyboard
Japanese JA Keyboard
Korean KO Keyboard
Figure E-3 KO keyboard
Satellite P20 Series Maintenance Manual
Appendix F Series Screw Torque List
Table F-1 Series Screw Torque List
MDC to MB User KEY FPC
Bluetooth to MB UP Hinge Cover
Satellite P20-25 Series Maintenance Manual
Appendix G Reliability
Table G-1 Mtbf
Satellite P20 Series Maintenance Manual