Toshiba Personal Computer Satellite P20-25 Series Maintenance Manual TOSHIBA CORPORATION
Copyright © 2003 by Toshiba Corporation. All rights reserved. Under the copyright laws, this manual cannot be reproduced in any form without the prior written permission of Toshiba. No patent liability is assumed with respect to the use of the information contained herein. Toshiba Personal Computer Satellite P20-25 Series Maintenance Manual First edition June 2003 Disclaimer The information presented in this manual has been reviewed and validated for accuracy.
Preface This maintenance manual describes how to perform hardware service maintenance for the Toshiba Personal Computer Satellite P20 Series, referred to as the P20-25 Series in this manual. 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.
The manual is divided into the following parts: Chapter 1 Hardware Overview describes the P20-25 Series 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 FRUs.
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.
vi Satellite P20-25 Series Maintenance Manual
Table of Contents Chapter 1 Hardware Overview 1.1 Features ...................................................................................................................... 1-1 1.2 System Unit................................................................................................................ 1-5 1.3 2.5-inch Hard Disk Drive........................................................................................... 1-9 1.4 Removable Drives.............................................
Chapter 3 Tests and Diagnostics 3.1 The Diagnostic Test ................................................................................................... 3-1 3.2 Executing the Diagnostic Test ................................................................................... 3-2 3.3 Config Check Test ..................................................................................................... 3-6 3.4 DMI Check Test...........................................................................
Chapter 4 Replacement Procedures 4.1 General.......................................................................................................................... 1 4.2 Battery........................................................................................................................... 7 4.3 PC Card......................................................................................................................... 9 4.4 Removable modules.........................................
Appendices Appendix A Handling the LCD Module ........................................................................... A-1 Appendix B Board Layout ................................................................................................ B-1 Appendix C Pin Assignments............................................................................................ C-1 Appendix D Keyboard Scan/Character Codes ..................................................................
Chapter 1 Hardware Overview
1 Hardware Overview 1-ii Satellite P20-25 Series Maintenance Manual
1 Hardware Overview Chapter 1 Contents 1.1 Features......................................................................................................................... 1 1.2 System Unit................................................................................................................... 5 1.3 2.5-inch Hard Disk Drive.............................................................................................. 8 1.4 Removable Drives.................................................
1 Hardware Overview 1-iv Satellite P20-25 Series Maintenance Manual
1.1 Features 1.1 1 Hardware Overview Features The Satellite P20-25 Series Personal Computer uses extensive Large Scale Integration (LSI), and Complementary Metal-Oxide Semiconductor (CMOS) technology extensively to provide compact size, minimum weight and high reliability. This computer incorporates the following features and benefits: CPU Intel Desktop P4 up to 2.
1 Hardware Overview HDD • • • • 1.1 Features One 2.5", 9.5mm hard disk with capacity 30GB/40GB/60GB/80GB Bus Master IDE 9.5mm, 2.5”HDD support Support Ultra 100 synchronous DMA FDD / DVD Devices One of the following: • 12.7mm, 1.44MB FDD device • 5.25” 12.7mm height DVD-R/RW device • 5.25” 12.7mm height DVD-ROM device • 5.25” 12.7mm height DVD multi-drivedevice • 5.25” 12.
1.1 Features I/O Ports • • • • • • • • • • • • • 1 Hardware Overview One 25-pin parallel port, EPP/ECP capability One 15-pin CRT port, supports DDC 2B One TV-out connector One MIC-in port One line-in port One headphone-out One 2-pin AC adapter jack One type III or two type II PCMCIA card bus slots Four 4-pin USB ports One RJ11/RJ45 port VR for volume control IEEE1396 (i.
1 Hardware Overview 1.1 Features Sound system A Cirrus logic ALC202 for AC97 codec audio subsystem offers industry leading mixed signal technology to enhance the computer’s multimedia capability. The sound system is equipped with stereo speakers and jacks for headphone and external microphone. TV-out port This video-out mini-jack enables transfer of NTSC or PAL data (video and right/left audio) to external devices such as a TV. LAN port The computer comes with an RJ-45 Local Area Network (LAN) port.
1.2 System Unit 1.2 1 Hardware Overview System Unit The system unit is composed of the following major components: Processor • Intel Desktop P4 up to 2.4GHZ or Northwood upgradable – mPGA478 package CPU – FSB533 Northwood CPU 2.53G/2.66G/2.8G w/o HT – FSB533 Northwood CPU 3.06G w/HT – FSB800 Northwood CPU 2.4G/2.6G/2.8G/3.0G/3.
1 Hardware Overview 1.2 System Unit Memory • System DRAM • Two JEDEC standard 200-pins SO-DIMM memory support +2.5V 64/128/256MB/512MB. • System & KB Combine ROM BIOS • 512KB Flash ROM Video Subsystem • nVIDIA NV34M Graphics Controller) • Microsoft-DX9 & OpenGL-2.
1.2 System Unit • • • • • • 1 Hardware Overview Dual 12-bit or Single 24-bit configurable DVO ports for up-to 333Mpixels/sec transfer rates Improved visual quality for all display planes (desktop or overlay) over all display devices (LCD, CRT, TV) – enabled by improved filtering, adaptive deinterlacing & per-pixel gamma-correction hardware circuitry Full support for all Windows (ME, 2K, XP), MAC OSX & Linux operating systems PowerMizer3.
1 Hardware Overview 1.3 1.4 Removable Drives 2.5-inch Hard Disk Drive The internal HDD is a random access non-volatile storage device. It has a non-removable 2.5-inch magnetic disk and mini-Winchester type magnetic heads. The computer supports a 30 / 40 / 60 / 80GB HDD.
1.4 Removable Drives 1.4 1 Hardware Overview Removable Drives The module compartments can accommodate the following removable modules: • Battery pack • Secondary hard disk drive • TV tuner • Floppy disk drive • DVD-R/-RW drive • DVD-ROM drive • DVD multi-drive drive • Combo drive 1.4.1 3.5-inch Floppy Disk Drive The 3.5-inch FDD is a thin, high-performance reliable drive that supports 720KB (formatted) 2DD and 1.44MB (formatted) 2HD disks. The specifications for the FDD are listed in the table below.
1 Hardware Overview 1.4 Removable Drives 1.4.2 DVD-R/-RW Drive The DVD-R/-RW drive (Toshiba SD-R6112) accommodates either 12cm (4.72-inch) or 8cm (3.15-inch) CDs or DVDs.
1.4 Removable Drives 1 Hardware Overview 1.4.3 DVD-ROM Drive The DVD-ROM drive (Toshiba SD-C2612 or Matsushita SR-8177) accommodates either 12cm (4.72-inch) or 8cm (3.15-inch) CDs or DVDs. Transfer rates Matsushita SR-8177: The DVD-ROM drive is able to read CD-ROM, CD-R data at 10.3X to 24X CAV mode speed and CD-RW data at 5.1X to 12X CAV mode speed. The drive has a transfer rate of max. 3 600 kbyte/s for CDROM data, CD-R and max. 1 800 kbyte/s for CD-RW data.
1 Hardware Overview 1.4 Removable Drives 1.4.4 DVD Multi-Drive The Matsushita UJ-811B DVD multi-drive is capable of driving either 12cm (4.72-inch) or 8cm (3.15-inch) DVDs and CDs without using an adaptor. Read speed DVD-ROM CD-ROM Max 8X CAV (MAX 10800 kB/s) Max 24X CAV (MAX 3600 kB/s) Write speed CD-R : CD-RW High Speed CD-RW DVD-R DVD-RW DVD-RAM Max16X Zone CLV 4X CLV 8XCLV 2XCLV 1X CLV 2X ZCLV ( 4.7GB) Access Speed DVD-ROM CD-ROM 180ms (Typ.) (Random) 150ms(Typ.
1.4 Removable Drives 1 Hardware Overview 1.4.5 Combo Drive The CD-RW/DVD-ROM combo drive (Toshiba SD-R2412 or TEAC DW-224E-85) is capable of driving either 12cm (4.72-inch) or 8cm (3.15-inch) DVDs and CDs without using an adaptor.
1 Hardware Overview 1.5 1.5 Power Supply Power Supply The power supply supplies seven different voltages to the system board and performs the following functions: 1. A/D conversion The EC uses 10-bit sampling for A/D conversion to determine the following values: • • AC adaptor current Battery and temperature 2. AC adaptor and battery check The EC checks the following by A/D converted values: • Battery installed The EC checks the following by GPIO values: • AC adaptor connected 3.
1.5 Power Supply • 1 Hardware Overview Orange = The computer is quick-charging the battery / The battery is low. 6. Power ON/OFF sequence When power is turned on or off, the EC starts the power on or off sequence. • • SQ0-4 = power ON sequence SQ5-B = power OFF sequence 7. Battery charging control The EC controls the following. • • The quick charging ON/OFF The detection of full charge 8. Detection of the low battery The EC detects the low battery point by the gas gauge.
1 Hardware Overview 1.6 1.6 Batteries Batteries The computer has two types of battery: Main battery pack (18650 size) RTC battery The removable main battery pack is the computer’s main power source when the AC adaptor is not attached. The battery specifications are listed in the table below. Battery name Material Output voltage Capacity Main battery Lithium-Ion 14.8 V 6450mAH RTC battery Lithium 3.3 V 15 mAh 1.6.
1.6 Batteries 1 Hardware Overview NOTES 1. The time required for normal charge is affected by the amount of power the system is consuming. Use of the fluorescent lamp and frequent disk access diverts power and lengthens the charge time. 2. Using quick charge, the power supply microprocessor automatically stops the charge after eight hours regardless of the condition of the battery. Overcharging could cause the battery to explode. If any of the following occurs, the battery quick charge process stops.
1 Hardware Overview 1.6 Batteries Detection of full charge A full charge is detected from the battery pack through SMBus when the battery is charging. 1.6.2 RTC battery The RTC battery provides power to keep the current date, time and other setup information in memory while the computer is turned off. The table below lists the charging time and data preservation period of the RTC battery. The RTC battery is charged by the adaptor or main battery, while the computer is powered on.
1.
Chapter 2 Troubleshooting Procedures
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2 Troubleshooting Procedures Chapter 2 Contents 2.1 Troubleshooting Introduction .................................................................................... 2-1 2.2 Troubleshooting Flowchart........................................................................................ 2-2 2.3 Power Supply Troubleshooting.................................................................................. 2-7 2.4 Display Troubleshooting................................................................
2 Troubleshooting Procedures Figures Figure 2-1 Troubleshooting flowchart (1/2) ....................................................................2-3 Figure 2-1 Troubleshooting flowchart (2/2) ....................................................................2-4 Figure 2-2 Power Supply Troubleshooting Process.........................................................2-7 Figure 2-3 Display troubleshooting process ..................................................................
2.1 Troubleshooting Introduction 2.1 2 Troubleshooting Procedures Troubleshooting Introduction 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. Display 6. Printer (parallel) port 11. PCMCIA unit 2. Floppy Disk Drive 7. TouchPad 12. IEEE 1394 port 3. Keyboard 8. Speaker 13. Wireless LAN system 4. USB ports 9. Optical drive 14. Bluetooth 5. TV-out port 10.
2 Troubleshooting Procedures 2.2 2.2 Troubleshooting Flowchart Troubleshooting Flowchart If you know the location of the malfunction, turn directly to the appropriate section of this chapter. If the problem is unspecified, use the flowchart in Figure 2-1 as a guide for determining which troubleshooting procedures to execute. Before performing any troubleshooting procedures, verify the following: Ask the user if a password is registered and, if it is, ask him or her to enter the password.
2.2 Troubleshooting Flowchart 2 Troubleshooting Procedures STA RT C o n n e c t th e A C a d a p ter to th e D C -IN so c k e t Is th e D C -IN L E D o n ? No P e rfo rm th e P o w e r S u p p ly T ro u b le sh o o tin g p ro c ed u re s in se ctio n 2 .3 No P e rfo rm th e P o w e r S u p p ly T ro u b le sh o o tin g p ro c ed u re s in se ctio n 2 .3 No P e rfo rm th e P o w e r S u p p ly T ro u b le sh o o tin g p ro c ed u re s in se ctio n 2 .
2 Troubleshooting Procedures 2.2 Troubleshooting Flowchart A Does typed characters appear correctly? No Perform the Keyboard Troubleshooting procedures in section 2.6 No Perform the FDD Troubleshooting procedures in section 2.5 Yes After confirming which diagnostics test has detected an error, perform the appropriate procedure as outlined below. Yes Insert the diagnostics disk into the FDD. Then run the diagnostics test program.
2.2 Troubleshooting Flowchart 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. When a problem has been located, perform the appropriate troubleshooting procedures as follows: 1. If an error is detected by the battery test, perform the Power Supply Troubleshooting procedures in Section 2.3. 2.
2 Troubleshooting Procedures 2.2 Troubleshooting Flowchart Other problems that are not covered by the diagnostics program may be discovered by a user. 1. If an error is detected when using an external USB device, perform the External USB Devices Troubleshooting procedures in Section 2.7. 2. If an error is detected when using the TV-out connection, perform the TV-Out Failure Troubleshooting procedures in Section 2.8. 3.
2.3 Power Supply Troubleshooting 2.
2 Troubleshooting Procedures 2.3 Power Supply Troubleshooting The power supply controls many functions and components. To determine if the power supply is functioning properly, start with Procedure 1 and continue with the other Procedures as instructed. The flowchart in Figure 2-2 gives a summary of the process.
2.3 Power Supply Troubleshooting 2 Troubleshooting Procedures Table 2-2 DC-IN LED AC-IN LED Power supply status Solid on AC power exists (LED is solid green). Off No AC power exists. To check the power supply status, install a battery pack and connect an AC adaptor to the DC-IN port on the computer and to a power supply. If the DC-IN LED or Battery LED is not lit, go to Procedure 2. Procedure 2 Adaptor / battery replacement A faulty adaptor may not supply power or may not charge the battery.
2 Troubleshooting Procedures Procedure 3 2.3 Power Supply Troubleshooting Power supply connection check The power supply wiring diagram is shown below: AC adaptor cord AC power cord AC adaptor System board Battery Any of the connectors may be disconnected. Perform Check 1. Check 1 Disconnect the AC power cord from wall outlet. Check the power cable for breaks. If the power cord is damaged, connect a new AC power cord. If there is no damage, go to Check 2.
2.3 Power Supply Troubleshooting Procedure 4 2 Troubleshooting Procedures Diagnostic check The power supply may not charge the battery pack. Perform the following procedures: 1. Reinstall the battery pack. 2. Attach the AC adaptor and turn on the power. If you cannot turn on the power, go to Procedure 5. 3. Run the Diagnostic test following the procedures described in Chapter 3, Tests and Diagnostics. If no problem is detected, the battery is functioning normally.
2 Troubleshooting Procedures 2.4 2.4 Display Troubleshooting Display Troubleshooting START P e r fo r m e x te r n a l d is p la y c h e c k (P ro c ed u re 1 ) D o e s th e e x te r n a l d is p la y fu n c tio n o k ? No P e r fo r m d ia g n o s tic c h e c k (P ro c ed u re 2 ) Y es W a s a d is p la y p r o b le m d e te c te d ? No D is p la y is n o t fa u lty . C o n tin u e tr o u b le s h o o tin g r e fe r to F ig u r e 2 .
2.4 Display Troubleshooting 2 Troubleshooting Procedures This section describes how to determine if the computer’s display is functioning properly. The process is outlined in Figure 2-3. Start with Procedure 1 and continue with the other procedures as instructed. Procedure 1: External display check Procedure 2: Diagnostic check Procedure 3: Connector and replacement check Procedure 1 External display check Connect an external display to the computer’s external monitor port, then boot the computer.
2 Troubleshooting Procedures Procedure 3 2.4 Display Troubleshooting Connector and replacement check The FL inverter board, LCD module, and system board are connected to the display circuits. Any of these components may be damaged. Refer to Chapter 4, Replacement Procedures, for instructions on how to disassemble the computer and then perform the following checks: Check 1 Make sure the DDR RAM module is seated properly. Test display again. If the problem still exits, replace the DDR RAM module.
2.5 FDD Troubleshooting 2.5 2 Troubleshooting Procedures FDD Troubleshooting START P e r fo r m F D D h e a d c le a n in g c h e c k (P ro ce d u re 1 ) P e r fo r m d ia g n o s tic c h e c k (P ro ce d u re 2 ) W as a FD D p r o b le m d e te c te d ? No F D D is n o t fa u lty . C o n tin u e tr o u b le s h o o tin g r e fe r to F ig u r e 2 .
2 Troubleshooting Procedures 2.5 FDD Troubleshooting This section describes how to determine if the removable FDD module is functioning properly. Perform the steps below starting with Procedure 1 and continuing as required. Figure 2-4 gives an outline of the process. Procedure 1: FDD head cleaning check Procedure 2: Diagnostic check Procedure 3: Connector check and replacement check Procedure 1 FDD head cleaning check The FDD heads can become dirty over time, affecting their performance.
2.6 Keyboard Troubleshooting 2.6 2 Troubleshooting Procedures Keyboard Troubleshooting START P e r fo r m e x te r n a l k e y b o a r d c h e c k (P ro c ed u re 1 ) D o e s th e e x te r n a l k e y b o a r d fu n c tio n o k ? Y es P e r fo r m d ia g n o s tic c h e c k (P ro c ed u re 2 ) No W a s a ke yb o ard p r o b le m d e te c te d ? No K e y b o a r d is n o t fa u lty . C o n tin u e tr o u b le s h o o tin g r e fe r to F ig u r e 2 .
2 Troubleshooting Procedures 2.6 Keyboard Troubleshooting To determine if the computer’s keyboard is functioning properly, perform the following procedures. Figure 2-5 outlines the process. Start with Procedure 1 and continue with the other procedures as instructed. Procedure 1: External keyboard check Procedure 2: Diagnostic check Procedure 3: Connector and replacement check Procedure 1 External keyboard check Connect a USB keyboard to one of the computer’s USB ports, then boot the computer.
2.7 External USB Devices Troubleshooting 2.
2 Troubleshooting Procedures 2.7 External USB Devices Troubleshooting To determine if the computer’s external USB devices are functioning properly, perform the following procedures. Figure 2-6 outlines the process. Start with Procedure 1 and continue as instructed. Procedure 1: External device and connection check Procedure 2: Replace system board Procedure 1 External device and connection check The USB device may be damaged or the connection may be faulty. Perform Check 1.
2.8 TV-Out Failure Troubleshooting 2.
2 Troubleshooting Procedures 2.8 TV-Out Failure Troubleshooting To determine if the computer’s TV-out port is functioning properly, perform the following procedures. Figure 2-7 outlines the process. Start with Procedure 1 and continue as instructed. Procedure 1: TV connection check Procedure 2: TV set check Procedure 1 TV connection check The TV cable may be damaged or the connections may be loose.
2.9 Printer Port Troubleshooting 2.9 2 Troubleshooting Procedures Printer Port Troubleshooting START Perform diagnostic check (Procedure 1) Does the print port function ok? Yes Perform print port loopback check (Procedure 2) No Was a print port problem detected? No Print port is not faulty continue troubleshooting refer to Figure 2.
2 Troubleshooting Procedures 2.9 Printer Port Troubleshooting To determine if the computer’s printer (parallel) port is functioning properly, perform the following procedures. Figure 2-8 outlines the process. Start with Procedure 1 and continue as instructed. Procedure 1: Diagnostic check Procedure 2: Printer port loopback check Procedure 3: Replace system board Procedure 1 Diagnostic check Attach the printer port loopback connector firmly to the printer port and run the Diagnostic Program.
2.10 Touch Pad Troubleshooting 2 Troubleshooting Procedures 2.
2 Troubleshooting Procedures 2.10 TouchPad Troubleshooting To determine if the computer’s built-in TouchPad is functioning properly, perform the following procedures. Figure 2-9 outlines the process. Start with Procedure 1 and continue as instructed. Procedure 1: TouchPad connection check Procedure 2: TouchPad replacement check Procedure 1 TouchPad connection check The TouchPad is connected via the TouchPad FPC to the system board.
2.11 Speaker Troubleshooting 2 Troubleshooting Procedures 2.11 Speaker Troubleshooting START Perform audio source test (Procedure 1) Do all sources have same problem? No Speakers are not faulty.
2 Troubleshooting Procedures 2.11 Speaker Troubleshooting To determine if the computer’s built-in speakers are functioning properly, perform the following procedures. Figure 2-10 outlines the process. First adjust the speaker volume to an appropriate level. Start with Procedure 1 and continue as instructed. Procedure 1: Audio source test Procedure 2: Earphone test Procedure 3: Connection check Procedure 4: Replacement check Procedure 1 Audio source test Try different audio sources (e.g.
2.12 Optical Drive Troubleshooting 2 Troubleshooting Procedures 2.
2 Troubleshooting Procedures 2.12 Optical Drive Troubleshooting This section describes how to determine if the computer’s internal optical drive is functioning properly. The Satellite P20 module bays can accommodate the following optical drives: • • • • DVD-R/RW device DVD-ROM device DVD Multi-drive device COMBO device Figure 2-11 outlines the process. Perform the steps below starting with Procedure 1 and continue with the other procedures as required.
2.12 Optical Drive Troubleshooting Procedure 5 2 Troubleshooting Procedures Connection check and replacement check The optical drive connects to the system board. The drive may be disconnected, or the drive or system board may be damaged. Disassemble the computer following the steps described in Chapter 4, Replacement Procedures, and perform the following checks: Check 1 Make sure the drive is firmly connected to the system board. If the connection is good and there is still an error, go to Check 2.
2 Troubleshooting Procedures 2.13 Modem Troubleshooting 2.
2.13 Modem Troubleshooting 2 Troubleshooting Procedures This section describes how to determine if the computer's modem is functioning properly. Figure 2-12 outlines the process. Perform the steps below starting with Procedure 1 and continuing with the other procedures as required.
2 Troubleshooting Procedures 2.14 PCMCIA Troubleshooting 2.14 PCMCIA Troubleshooting START Perform SYCARD test (Procedure 1) Do errors occur during SYCARD test? No PCMCIA unit is not faulty.
2.14 PCMCIA Troubleshooting 2 Troubleshooting Procedures This section describes how to determine if the PCMCIA card player is functioning properly. The process is summarized in Figure 2-13. Perform the steps below starting with Procedure 1 and continuing with the other procedures as required. Procedure 1: Sycard test Procedure 2: PCMCIA socket replacement check Procedure 1 SYCARD test The SYCARD test card contains a PCMCIA test program.
2 Troubleshooting Procedures 2.15 IEEE 1394 Troubleshooting 2.15 IEEE 1394 Troubleshooting START Perform IEEE 1394 device check (Procedure 1) Is IEEE 1394 transmission ok? Yes Perform diagnostic check (Procedure 2) No Was an IEEE 1394 problem detected? No IEEE 1394 port and transmission are not faulty. Continue troubleshooting - refer to Figure 2.
2.15 IEEE 1394 Troubleshooting 2 Troubleshooting Procedures To determine if the computer’s IEEE 1394 system is functioning properly, perform the following procedures. Figure 2-14 outlines the process. Start with Procedure 1 and continue with the other procedures as instructed.
2 Troubleshooting Procedures 2.16 Wireless LAN Troubleshooting 2.16 Wireless LAN Troubleshooting START Perform diagnostic test (Procedure 1) Was a wireless LAN problem delected? No Wireless LAN system is not faulty. Continue troubleshooting - refer to Figure 2.
2.16 Wireless LAN Troubleshooting 2 Troubleshooting Procedures The wireless LAN antenna wire, wireless LAN unit or system board may each be the source of a wireless LAN fault. Any of these components may be damaged. To determine if the computer’s wireless LAN system is functioning properly, perform the following procedures. Figure 2-15 outlines the process. Start with Procedure 1 and continue with the other procedures as instructed.
2 Troubleshooting Procedures 2.17 Bluetooth Troubleshooting 2.17 Bluetooth Troubleshooting START Preform diagnostic test (Procedure 1) Was a Bluetooth problem detected? No Bluetooth is not faulty. Continue troubleshooting-refer to Figure 2.
2.17 Bluetooth Troubleshooting 2 Troubleshooting Procedures The Bluetooth antenna wire, Bluetooth module or system board may be the source of a Bluetooth fault. Any of these components may be damaged. To determine if the computer’s Bluetooth system is functioning properly, perform the following procedures. Figure 2-16 outlines the process. Start with Procedure 1 and continue as instructed.
2 Troubleshooting Procedures 2-42 2.
Chapter 3 Tests and Diagnostics
3.
Test and Diagnostic Operation Contents 3.1 The Diagnostic Test ................................................................................................... 3-1 3.2 Executing the Diagnostic Test ................................................................................... 3-2 3.3 Config Check Test...................................................................................................... 3-6 3.4 DMI Check Test.....................................................................
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3.1 The Diagnostic Test 3.1 3. Tests and Diagnostics The Diagnostic Test This chapter explains how to use the Test & Diagnostic program to test the functions of the computer’s hardware modules. The Test & Diagnostic Program is stored on the T&D diskettes. The program consists of a series of tests that run automatically when the Diagnostics Program items are selected and executed. NOTES: To start the diagnostics, follow these steps 1. Check all cables for loose connections. 2.
3. Tests and Diagnostics 3.2 3.2 Executing the Diagnostic Test Executing the Diagnostic Test Toshiba MS-DOS is required to run the DIAGNOSTICS PROGRAM. To start the DIAGNOSTIC PROGRAM, follow these steps: 1. Insert the diagnostics diskette #1 in the floppy disk drive and turn on the computer. (The diagnostics diskette contains the MS-DOS boot files.) And then follow the instructions to swap with the diagnostics diskette #2 for T&D program installed in RAM driver.
3.2 Executing the Diagnostic Test 3. Tests and Diagnostics The below display will show up at the beginning of T&D program.
3. Tests and Diagnostics 3.2 Executing the Diagnostic Test If an error is detected and a test fails, the following message displays: Then press any key for next actions – the below display presented if copying test log file onto diskette is necessary. This action will be executed when “Y” key pressed. It will skip this process if “N” key pressed.
3.2 Executing the Diagnostic Test 3. Tests and Diagnostics And then it will check if it’s necessary to leave this program. Program will quit when “Y” key pressed and it will go back main menu for next test if “N” key pressed. NOTE: Press Pause to pause a test and Enter to resume.
3. Tests and Diagnostics 3.3 3.3 Config Check Test Config Check Test The config check test checks unit configuration. It includes: CPU type System memory size ODD type HDD type & capacity BIOS version This test needs input unit Part Number by manual to make comparison with known SKU data. NOTE: To execute this test, you must input unit Part Number as “Uppercase Character”. Then it will show its configuration is correct (in green color) or failed (in red color).
3.4 DMI Check Test 3.4 3. Tests and Diagnostics DMI Check Test This test will check if the computer’s Desktop Management Interface (DMI) is correct. DMI includes: Manufacturer Production Name Version Serial Number UUID OEM String It needs to input unit Part Number by manual, then show this unit DMI information and makes comparison with SKU data. NOTE: To execute this test, you must input unit Part Number as “Uppercase Character”.
3. Tests and Diagnostics 3.5 3.5 PIO Loopback Test PIO Loopback Test The PIO loopback test will check below items through PIO loopback connector. External Interrupt External Loopback - including Pattern test, Data Pin test, Control register test & Control pin/ Status pin test. NOTE: Remember to connect a PIO loopback connector to the computer's printer port before test begins. The screen should display as below, indicating whether the test is passed or failed when finished.
3.6 IEEE 1394 Test 3.6 3. Tests and Diagnostics IEEE 1394 Test The IEEE 1394 port test checks transmission between the computer and a secondary device along an IEEE 1394 line. An IEEE 1394 transmission line must be firmly connected between the computer and the device before the test is started. The test requires: 1. An IEEE 1394-compatible device 2. An IEEE 1394 transmission line To perform the test: 1. Copy the following files from the BTR20.
3. Tests and Diagnostics 3.7 3.7 Speaker Audio Test Speaker Audio Test The speaker audio test allows the user to aurally confirm the speaker functions. And check both speakers if they are OK within 3 times “Beep” sound generated. NOTE: Remember to tune up the volume as “Maximum” before this test starts. The screen should display as below, indicating whether the test is passed or failed after the question.
3.8 Fan ON/OFF Test 3.8 3. Tests and Diagnostics Fan ON/OFF Test The fan test allows the user to test aurally whether the fan is working. And follow the below procedures for this test: The computer will let the fan be “ON” after any key pressed. Listen to check whether the fan is working. NOTE: Remember to approach fan outlet that is near right side of unit whether fan is “ON”. The computer will stop the fan working after any key pressed.
3. Tests and Diagnostics 3.9 3.9 Main Battery Change Test Main Battery Charge Test NOTE: The AC adaptor (120W, 19V) should be connected to successfully run this test. This test shows and measures the main battery: Battery type (Ni-MH / Lion) Manufacturer (Sony / Sanyo) Remain charge capacity (0 ~ 100%) Charge function (PASS/FAIL) - “Battery Is Full” showed when “remain charge capacity” is 100% The screen should display as below, indicating whether the test is passed or failed when finished.
3.10 FDD Test 3. Tests and Diagnostics 3.10 FDD Test NOTE: Before running the FDD test, prepare a formatted work diskette (1.44 MB). Remove the diagnostics diskette and insert the work diskette into the FDD. The contents of the floppy diskette maybe erased. The Floppy Disk Test includes three subtests of the: 1. Sequential seek/verify function (Range: Track 0 ~ 79) 2. Funnel code seek/verify function (Range: Track 0 ~ 79) 3.
3. Tests and Diagnostics 3.11 CD-ROM Test 3.11 CD-ROM Test The CD-ROM test allows a user to aurally confirm the CD-ROM functions. NOTE: A CD disc (including data file) must be inserted into the CD-ROM drive before this test starts. The CD-ROM test includes two subtests of the: 1. Random read/partial sequential read function 2. Sequential read function (for all surface) Each item can be chosen by manual. When each test item finished, the CD-ROM tray will open.
3.12 Keyboard Test 3. Tests and Diagnostics 3.12 Keyboard Test The keyboard test checks the all keys function. NOTE: The Num Lock and the Overlay mode must be off to execute the keyboard test. Before keyboard test starts, the keyboard matrix code should be chosen as below display: 1. K (UK, for Europe) 2. S (US, for America) 3. J (JP, for Japan) When you execute this test, the keyboard layout is drawn on the display.
3. Tests and Diagnostics 3-16 3.
3.12 Keyboard Test 3. Tests and Diagnostics Pressing a key also reveals that key’s scan codes in the upper right hand corner of the screen. When the key is depressed, its make code is displayed. When the key is released, the break code is shown.
3. Tests and Diagnostics 3.13 Mouse (Pad) Test 3.13 Mouse (Pad) Test The Mouse test allows the user to select and assign values to the following, using the Touch Pad or “Tab” key to move between selections: 1. Mouse Speed (on a scale from slow to fast) 2. Acceleration (Off, Low, Medium, High) 3. Button Assignments (Left + Right / Right button, either Unassigned or Drag Lock) 4. Swap Buttons (Left /Right) NOTE: The Touch Pad test cannot be used to test an external USB mouse.
3.13 Mouse (Pad) Test 3. Tests and Diagnostics NOTE: The above figure has three compartments although the Touch Pad installed may only have two buttons. In this case, the central compartment in the figure does not correspond to any button.
3. Tests and Diagnostics 3.14 LCD Pixels Mode Test 3.14 LCD Pixels Mode Test This LCD pixels mode test checks whether video display is fine. This test includes two modes of the test: 1. Text Mode - including 40*25 (16 colors) and 80*25 (2/16colors). 2. VGA Mode - including 320*200 (4/16/256 colors), 640*200 (2/16 colors), 640*350 (2/16 colors), 640*480 (2/16/256 colors), 800*600 (256 colors) and 1024*768 (256 colors).
3.15 Lid Switch Test 3. Tests and Diagnostics 3.15 Lid Switch Test The lid switch test checks the lid function of the unit. When LCD cover closed, the lid should enable to turn off the display. NOTE: Remember to tune up the volume as “Maximum” before this test starts. Follow below steps to run this test: 1. Close the LCD cover. 2. Heard 3 “Beep” sound happened during LCD closed. 3. Open the LCD. Then it will indicate whether the test is passed or failed.
3. Tests and Diagnostics 3.16 HDD R/W Test 3.16 HDD R/W Test The HDD R/W test allows the user to test aurally HDD read/write function. For data security concern, it is necessary to input password - “TOSHIBA” before HDD write test starts. The HDD test includes three subtests of the: 1. Sequential read (all surface) 2. Sequential write (all surface) 3.
3.16 HDD R/W Test 3. Tests and Diagnostics NOTE: Press “Ctrl + Break” keys can terminate the current subtest. The screen should display as previous picture, indicating whether the subtest is passed or failed when finished. NOTE: The AC adaptor should be connected to successfully run this test.
3. Tests and Diagnostics 3.17 LAN Test 3.17 LAN Test The LAN test checks the LAN full-duplex environment. NOTE: LAN loopback needs to plug in before test begins. And LAN information will show on the test screen: IO Base – Port: 3000H IRQ – AH, it’s “IRQ 10”. Node – it is “MAC Address”. Line Frame – 1514 Bytes. Line Speed – 100Mbps or 10 Mbps. Bus ID – it’s “4”. The LAN test includes two subtests of the: 1. Speed100 - including Ethernet_802.2, Ethernet_II, Ethernet_SNAP and Ethernet_802.3.
3.17 LAN Test 3. Tests and Diagnostics The screen should display as below, indicating whether the subtests pass or fail when finished.
3. Tests and Diagnostics 3.18 RTC Test 3.18 RTC Test Checks the computer’s RTC (Real Time Clock) and calendar functions by comparing the DOS and CMOS values. The test runs automatically. The screen should display as below, indicating whether the test is passed or failed when finished.
3.19 CD Control Button Test 3. Tests and Diagnostics 3.19 CD Control Button Test The CD control button test allows the user to manually test each of the five CD control buttons. The figure below will be displayed: Press each of the buttons on the front panel in turn. A yellow bar will appear on the relevant section of the figure if the button passes the test. Press Esc to quit the test.
3. Tests and Diagnostics 3-28 3.
Chapter 4 Replacement Procedures
4 Replacement Procedures 4-ii Satellite P20-25 Series Maintenance Manual
4 Replacement Procedures Chapter 4 Contents 4.1 General....................................................................................................................... 4-1 4.2 Battery........................................................................................................................ 4-7 4.3 PC Card...................................................................................................................... 4-9 4.4 Removable modules................................
4 Replacement Procedures 4-iv Satellite P20-25 Series Maintenance Manual
4.1 General 4.1 4 Replacement Procedures General This chapter explains how to disassemble the computer and replace Field Replaceable Units (FRUs). It may not be necessary to remove all the FRUs in order to replace one. The chart below is a guide to which FRUs need to be removed in order to remove others.
4 Replacement Procedures 4.1 General The example below shows FRUs to be removed before the LED / power button board can be removed and repaired or replaced. The LED / power button board is overlapped by the top cover which must be removed before the LED / power button board can be reached. The top cover is in turn overlapped by the removable main module, HDD and keyboard. Always starts the disassembly process by removing the battery pack.
4.1 General 4 Replacement Procedures Safety Precautions Before you begin disassembly, read the following safety precautions and observe them carefully as you work. DANGER: 1. 2. Always use the lithium ion battery pack or backup battery that is authorized by Toshiba or compatible with the unit. Since other battery packs have different specifications, they may be incompatible with the unit, and may burst or explode. Heating or disassembling the battery pack could cause leakage of alkaline solution.
4 Replacement Procedures 4.1 General Before You Begin Look over the procedures in this section before you begin disassembling the computer. Familiarize yourself with the disassembly and reassembly steps. Begin each procedure by removing the AC adaptor and the battery pack as instructed in section 4.2. 1. Do not disassemble the computer unless it is operating abnormally. 2. Use only the correct and approved tools. 3.
4.1 General 4 Replacement Procedures Disassembly Procedures The computer has two basic types of cable connectors: Pressure Plate Connectors Standard Pin Connectors To disconnect a Pressure Plate connector, lift up the tabs on either side of the connector’s plastic pressure plate and slide the cable out of the connector. To connect the cable to a Pressure Plate connector, make sure the pressure plate is fully lifted and slide the cable into the connector.
4 Replacement Procedures 4.1 General Tools and Equipment The use of Electrostatic Discharge (ESD) equipment is very important for your safety and the safety of those around you. Proper use of these devices will increase the success rate of your repairs and lower the cost for damaged or destroyed parts. The following equipment is necessary to disassemble and reassemble the computer: One M2 Phillips screwdriver to remove and replace screws. One T5 security screwdriver.
4.2 Battery 4.2 4 Replacement Procedures Battery Removing the Battery Pack To remove the battery pack from the 2nd module bay, follow the steps below. 1. Turn the computer upside down. 2. Unlock the 2nd module bay lock. 3. Slide the 2nd module bay latch to release it then pull the battery pack out from the bay. Fig 4-1: Removing the battery pack NOTE: For environmental reasons, do not throw away a spent battery pack. Please return spent battery packs to Toshiba.
4 Replacement Procedures 4.2 Battery Installing the Battery Pack To install the battery pack in the 2nd module bay, follow the steps below and refer to the figure in the preceding section. WARNING: The battery is a lithium ion battery and can explode if not properly replaced, used, handled or disposed of. Use only batteries recommended by Toshiba as replacements. 1. Slide the battery pack into the 2nd module bay. The 2nd module bay latch will click automatically and secure the battery pack in position. 2.
4.3 PC Card 4.3 4 Replacement Procedures PC Card Removing a PC Card To remove a PC Card, follow the steps below. 1. Push the eject button for the card you want to release. The button will pop out when you release it.
4 Replacement Procedures 4.3 PC Card 2. Push the eject button once more to pop the PC Card out slightly. 3. Grasp the PC Card and remove it. Fig 4-3: Removing the PC Card 4. Push the eject button back into place, if necessary.
4.3 PC Card 4 Replacement Procedures Installing the PC Card To install the PC Card, follow the steps below and refer to the figures in the preceding section. 1. Make sure the two eject buttons do not stick out. 2. Insert the PC Card and press gently to ensure a firm connection.
4 Replacement Procedures 4.4 4.4 Removable modules Removable modules The Satellite P20 features two bays for the insertion of removable modules. The main module bay may house an optical drive, a second HDD or an FDD. The 2nd module bay is generally used for the removable battery, but it may also be used with a second Optical Media Drive or a TV tuner module. This section covers removal and installation of devices from the main module bay.
4.4 Removable modules 4 Replacement Procedures Removing the Main Module To remove the main module, follow the steps below: 1. Turn the computer upside down. 2. Unlock the main module bay lock. 3. Slide the main module bay latch to release it then pull the main module out from the bay.
4 Replacement Procedures 4.4 Removable modules Installing the Main Module To install a device in the main module bay, follow the steps below and refer to the figure in the preceding section. 1. Slide the device into the main module bay. The main module bay latch will click automatically and secure the device in position. 2. Engage the main module bay latch lock.
4.5 Optical Drive 4.5 4 Replacement Procedures Optical Drive The Satellite P20 may be fitted with a: DVD-R/-RW device DVD-ROM device DVD Multi-drive device Combo device Disassembling the Optical Drive To disassemble the optical drive, first remove the drive from its module bay, then follow the steps below. 1. Remove three black M2×8 screws and one silver M2×4 screw securing the back bracket plate. Lift off the back bracket plate. 2.
4 Replacement Procedures 4.5 Optical Drive 3. Pull the optical drive board from the rear of the drive.
4.5 Optical Drive 4 Replacement Procedures Reassembling the Optical Drive To reassemble an optical drive, follow the steps below and refer to the figure in the preceding section. 1. Fit the optical drive board to the rear panel of the optical drive. 2. Place the drive in the main bracket and secure with four silver M2×4 screws (two from each side of the drive). 3. Position the back bracket plate and secure with three black M2×8 screws and one silver M2×4 screw.
4 Replacement Procedures 4.6 4.6 TV Tuner TV Tuner Disassembling the TV Tuner To disassemble the TV tuner, first remove the tuner from its module bay, then follow the steps below. 1. Remove seven M2×8 screws securing the TV tuner case. 2. Lift the lid off the TV tuner case and lift out the TV tuner board (if appropriate, detach the TV tuner transfer assembly FPC).
4.6 TV Tuner 4 Replacement Procedures Reassembling the TV Tuner To reassemble a TV tuner, follow the steps below and refer to the figure in the preceding section. 1. Position the TV tuner board in the TV tuner case and, if appropriate, attach the TV tuner transfer assembly FPC. 2. Secure the lid of the TV tuner case with seven M2×8 screws.
4 Replacement Procedures 4.7 4.7 Removable HDD Removable HDD Disassembling the Removable HDD To disassemble the removable HDD, first remove the drive from its module bay, then follow the steps below. 1. Release the lid latch of the removable HDD container and open the HDD container lid. 2. Ease the HDD out of the container.
4.7 Removable HDD 4 Replacement Procedures CAUTION: When handling the HDD, do not press the top surface as shown by the arrow. Hold it by the sides. 3. Remove the four M3×3 screws that secure the HDD case to the HDD. 4. Lift off the HDD case.
4 Replacement Procedures 4.7 Removable HDD 5. Grasp the HDD and peel off the aluminum HDD shielding. 6. Gently pull the HDD connector off the HDD.
4.7 Removable HDD 4 Replacement Procedures Reassembling the Removable HDD To reassemble the removable HDD, follow the steps below and refer to the figure in the preceding section. 1. Attach the HDD connector to the HDD. 2. Wrap the HDD in the aluminum HDD shielding ensuring that the circuit board face of the drive is covered by the black part of the shielding. The circuit board must not come into contact with the silver portion of the shielding. 3.
4 Replacement Procedures 4.8 4.8 Removable FDD Removable FDD Disassembling the Removable FDD To disassemble the removable FDD, first remove the drive from its module bay, then follow the steps below. 1. Remove two M2.5×4 screws from each side of the drive and three M2.5×4 screws securing the rear panel. 2. Lift off the FDD bracket. Fig 4-9: Removing the FDD bracket screws 3. Release the FDD FPC and remove.
4.8 Removable FDD 4 Replacement Procedures Reassembling the Removable FDD To reassemble a FDD, follow the steps below and refer to the figure in the preceding section. 1. Attach the FDD FPC. 2. Place the FDD in the FDD bracket and secure with two M2.5×4 screws on each side of the drive and three M2.5x4 screws on the rear panel.
4 Replacement Procedures 4.9 4.9 Wireless LAN Unit Wireless LAN Unit Removing the Wireless LAN Unit To remove the wireless LAN unit, first remove the battery pack then follow the steps below. 1. Turn the computer upside down and loosen two embedded screws securing the wireless LAN compartment cover. 2. Lift off the wireless LAN compartment cover.
4.9 Wireless LAN Unit 4 Replacement Procedures 3. Detach the two ends of the wireless LAN antenna. 4. Gently press out on the latches. One end of the wireless LAN unit will pop up. 5. Grasp the wireless LAN unit and pull it out. Fig 4-11: Removing the wireless LAN unit CAUTION: Do not touch the connectors on the wireless LAN unit or on the computer. Debris on the connectors may cause malfunction.
4 Replacement Procedures 4.9 Wireless LAN Unit Installing the Wireless LAN Unit To install the wireless LAN unit, follow the steps below and refer to the figures in the preceding section. 1. Turn the computer upside down and loosen two embedded screws securing the wireless LAN compartment cover. 2. Lift off the wireless LAN compartment cover. 3. Fit the wireless LAN unit’s connectors into the computer’s connectors and press carefully to ensure firm contact.
4.10 Expansion Memory 4 Replacement Procedures 4.10 Expansion Memory Removing the Expansion Memory To remove the expansion memory, first remove the battery pack, then follow the steps below. 1. Turn the computer upside down. 2. Remove two embedded screws securing the expansion memory cover. 3. Lift off the expansion memory cover.
4 Replacement Procedures 4.10 Expansion Memory 4. Gently press out on the latches. One end of the expansion memory will pop up. 5. Grasp the expansion memory and pull it out. Fig 4-13: Removing the expansion memory CAUTION: Do not touch the connectors on the expansion memory or on the computer. Debris on the connectors may cause memory access problems.
4.10 Expansion Memory 4 Replacement Procedures Installing the Expansion Memory To install the expansion memory, follow the steps below and refer to the figures in the preceding section. 1. Turn the computer upside down. 2. Remove the two embedded screws securing the expansion memory cover. 3. Lift off the expansion memory cover. 4. Fit the expansion memory’s connectors into the computer’s connectors and press carefully to ensure firm contact.
4 Replacement Procedures 4.11 Modem / Bluetooth Unit 4.11 Modem / Bluetooth Unit Optional modem and Bluetooth units occupy the same connector so only one can be fitted at a time. The removal and installation procedures are the same for both. Removing the Modem / Bluetooth Unit To remove the installed modem or Bluetooth unit, first remove the battery pack, then follow the steps below. 1. Turn the computer upside down. 2. Remove two embedded screws securing the modem / Bluetooth unit cover. 3.
4.11 Modem / Bluetooth Unit 4 Replacement Procedures 4. Remove two M2.5×3 screws securing the modem / Bluetooth unit. Fig 4-15: Removing the modem / Bluetooth unit screws 5. Carefully lift the unit off its connector. 6. If a modem is being removed, disconnect its power cable from the system board. If a Bluetooth unit is being removed, disconnect its FPC cable from the system board.
4 Replacement Procedures 4.11 Modem / Bluetooth Unit Installing the Modem / Bluetooth Unit To install a modem or Bluetooth unit, follow the steps below and refer to the figures in the preceding section. 1. Turn the computer upside down. 2. Remove two embedded screws securing the modem / Bluetooth unit cover. 3. Lift off the modem / Bluetooth unit cover. 4. If a modem is being fitted, connect the power cable. If a Bluetooth unit is being fitted, connect the FPC cable. 5.
4.12 CPU 4 Replacement Procedures 4.12 CPU Removing the CPU To remove the CPU, first remove the battery pack, then follow the steps below. 1. Turn the computer upside down and remove five embedded security screws securing the CPU compartment cover. Remove the CPU compartment cover.
4 Replacement Procedures 4.12 CPU 2. Remove four screws securing the heat sink. 3. Lift off the heat sink. In the event that the heat sink is stuck to the CPU, insert a small flathead screwdriver into the hole on the heat sink to gently lever it off). Fig 4-17: Removing the heat sink CAUTION: If you remove the heat sink, you should use the CPU grease tool to remove the grease on the CPU and heat sink. Reapply fresh grease before replacing the heat sink.
4.12 CPU 4 Replacement Procedures 4. Turn the cam on the CPU socket with a flat-blade screwdriver so that the notch on the cam is aligned with the open side of the CPU socket to unlock the CPU. Fig 4-18: Removing the CPU 5. Gently lift out the CPU.
4 Replacement Procedures 4.12 CPU Installing the CPU To install the CPU, follow the steps below and refer to the figures in the preceding section. CAUTION: If you remove the heat sink, you should use the CPU grease tool to remove the grease on the CPU and heat sink. Reapply fresh grease before installing the heat sink. 1. Make sure that the notch on the cam is aligned with the open position. 2. Seat the CPU to align the triangle mark on the CPU with the one on the CPU socket.
4.13 HDD 4 Replacement Procedures 4.13 HDD CAUTION: When handling the HDD, do not press the top surface as shown by the arrow. Hold it by the sides.
4 Replacement Procedures 4.13 HDD Removing the HDD To remove the HDD, first remove the battery pack, then follow the steps below. 1. Turn the computer upside down. 2. Remove two M2.5×4 black screws securing the HDD and lift out the HDD unit. Fig 4-19: Removing the HDD unit cover screws NOTE: It is not necessary to remove the HDD case unless you are going to replace the HDD.
4.13 HDD 4 Replacement Procedures 3. Remove the four M3×3 screws that secure the HDD case to the HDD. Fig 4-20: Removing the HDD unit case screws 4. Lift off the HDD case. 5. Grasp the HDD at the side and peel off the aluminum HDD shielding. 6. Gently pull the HDD connector off the HDD.
4 Replacement Procedures 4.13 HDD Installing the HDD To install the HDD, follow the steps below and refer to the figures in the preceding section. 1. Slide the HDD connector firmly into place on the HDD, being careful not to damage the connector pins. 2. Wrap the HDD in the HDD shielding ensuring that the circuit board face of the drive is covered by the black part of the shielding. The circuit board must not come into contact with the silver portion. . 3.
4.14 Keyboard 4 Replacement Procedures 4.14 Keyboard Removing the Keyboard To remove the keyboard, first remove the battery pack, then follow the steps below. 1. Open the display panel. 2. Insert a thin tool into each of the narrow holes in the strip cover and lever the strip cover up to release its latches.
4 Replacement Procedures 4.14 Keyboard 3. Remove two M2.5×3 silver screws securing the keyboard. 4. Lift the keyboard out and place over the display hinges, revealing the keyboard cable. 5. Disconnect the keyboard cable and remove the keyboard.
4.14 Keyboard 4 Replacement Procedures Installing the Keyboard To install the keyboard, follow the steps below and refer to the figures in the preceding section. 1. Connect the keyboard cable to the system board. 2. Set the keyboard in place and secure it with two M2.5×3 silver screws. 3. Seat the strip cover and press down to ensure the strip cover latches engage, locking it in place.
4.15 TOP Cover 4 Replacement Procedures 4.15 Top Cover Removing the Top Cover To remove the top cover, first remove the battery pack, then follow the steps below. 1. Remove the keyboard, HDD and main module. 2. Remove seven M2.5×6 screws from the keyboard tray securing the top cover. 3.
4 Replacement Procedures 4.15 TOP Cover 4. Turn the computer upside down and remove the following sixteen screws: • Three M2.5×3 silver screws • Two M2.5×4 black screws • Five M2.5×6 black screws • Six M2.5×14 black screws Fig 4-25: Removing the screws from the computer underside 5. Turn the computer upright, open the display cover and lift off the top cover.
4.15 TOP Cover 4 Replacement Procedures Installing the Top Cover To install the top cover, follow the steps below and refer to the figures in the preceding section. 1. Seat the top cover and secure the following three cables: • LED / power button board FPC • Function key board FPC • TouchPad FPC 2. Secure the top cover with seven M2.5×6 screws. 3. Turn the computer upside down and secure the following sixteen screws: • Three M2.5×3 silver screws • Two M2.5×4 black screws • Five M2.
4 Replacement Procedures 4.16 Function Key Board 4.16 Function Key Board Removing the Function Key Board To remove the Function Key Board, first remove the battery pack, then follow the steps below. 1. Remove the keyboard, HDD, main module and top cover. 2. Place the top cover face down. 3. Remove two M2.5×3 silver screws securing the function key board. Remove function key board.
4.16 Function Key Board 4 Replacement Procedures Installing the Function Key Board To install the Function Key Board, follow the steps below and refer to the figure in the preceding section. 1. Feed the function key board FPC through the top cover. 2. Position the function key board and secure with two M2.5×3 silver screws.
4 Replacement Procedures 4.17 LED / Power Button Board 4.17 LED / Power Button Board Removing the LED / Power Button Board To remove the LED / Power Button Board, first remove the battery pack, then follow the steps below. 1. Remove the keyboard, HDD, main module and top cover. 2. Place the top cover face down. 3. Remove four M2.5×3 silver screws securing the LED / power button board. Remove LED / power button board.
4.17 LED / Power Button Board 4 Replacement Procedures Installing the LED / Power Button Board To install the LED / Power Button Board, follow the steps below and refer to the figure in the preceding section. 1. Feed the LED / power button board FPC through the top cover. 2. Position the LED / power button board and secure with four M2.5×3 silver screws.
4 Replacement Procedures 4.18 TouchPad 4.18 TouchPad Removing the TouchPad To remove the TouchPad, first remove the battery pack, then follow the steps below. 1. Remove the keyboard, HDD, main module and top cover. 2. Place the top cover face down. 3. Disconnect the TouchPad board FPC cable from both the TouchPad button board and the TouchPad. 4. Remove five M2.5×3 silver screws securing the TouchPad cover. 5. Lift out the TouchPad cover followed by the TouchPad. 6.
4.18 TouchPad 4 Replacement Procedures Installing the TouchPad To install the TouchPad, follow the steps below and refer to the figure in the preceding section. 1. With the top cover upside down, place the TouchPad and TouchPad Button Board in position. Secure the TouchPad Button Board with two M2.5×3 silver screws. 2. Position the TouchPad cover and secure with five M2.5×3 silver screws. 3. Connect the TouchPad board FPC cable to both the TouchPad button board and the TouchPad.
4 Replacement Procedures 4.19 Display Assembly 4.19 Display Assembly Removing the Display Assembly To remove the display assembly, first remove the battery pack, then follow the steps below. 1. Turn the computer upside down and loosen two embedded screws securing the wireless LAN compartment cover. 2. Lift off the wireless LAN compartment cover. Fig 4-29: Removing the wireless LAN compartment cover 3. Detach the two ends of the wireless LAN antenna. 4. Remove the keyboard, HDD, main module and top cover.
4.19 Display Assembly 4 Replacement Procedures 6. Remove two M2×4 screws from the rear of the hinges and two M2.5×6 screws from the I/O cover. Fig 4-30: Removing the wireless LAN compartment cover 7. Remove one m2.5×12 screw securing the left end of the hinge cover and one m2.5×3 silver screw securing the right end. 8. Lift off the hinge cover.
4 Replacement Procedures 4.19 Display Assembly 9. Remove two M2.5×6 screws from the hinges and release the display cable. 10. Pull on the attached handle to detach the display cable from the system board. 11. Lift the display assembly off the computer chassis.
4.19 Display Assembly 4 Replacement Procedures Installing the Display Assembly To install the display assembly, follow the steps below and refer to the figures in the preceding section. 1. Seat the display assembly taking care not to crush to the LCD display cable or wireless LAN antenna. 2. Feed the wireless LAN antenna through the system board into the wireless LAN compartment. 3.
4 Replacement Procedures 4.20 System Board 4.20 System Board Removing the System Board To remove the system board, first remove the battery pack, then follow the steps below. 1. Turn the computer upside down and remove five embedded security screws securing the CPU compartment cover. Remove the CPU compartment cover. Fig 4-32: Removing the CPU compartment cover 2. Disconnect the three fan cables.
4.20 System Board 4 Replacement Procedures 3. Remove the keyboard, HDD, main module, CPU, modem or Bluetooth unit, expansion memory cards, wireless LAN cards, PC card(s), top cover and display assembly. 4. Remove nine M2.5×4 screws securing the low I/O cover (five from the top, two from the rear, and two from the base). 5. Remove the four hexagonal port screws. Fig 4-34: Removing the hexagonal port screws 6. Remove the low I/O cover.
4 Replacement Procedures 4.20 System Board 7. Remove the three M2.5×6 screws securing the system board to the computer chassis. 8.
4.20 System Board 4 Replacement Procedures Installing the System Board To install the system board, follow the steps below and refer to the figures in the preceding section. 1. Seat the system board and secure with three M2.5×6 screws. 2. Secure the following five cables to the system board: • Right-side speaker cable • Direct play LED FPC cable • CIR FFC cable • Direct play button FFC • Audio board FFC cable 3. Position the low I/O cover. 4.
4 Replacement Procedures 4.21 Direct Play Button Board 4.21 Direct Play Button Board Removing the Direct Play Button Board To remove the direct play button board, first remove the battery pack, then follow the steps below. 1. Remove the keyboard, HDD, main module and top cover. 2. Release the direct play button FFC from the system board. 3. Remove two M2.5×6 screws securing the direct play cover assembly. 4. Ease the direct play cover assembly forward through the front panel.
4.21 Direct Play Button Board 4 Replacement Procedures Installing the Direct Play Button Board To install the direct play button board, follow the steps below and refer to the figure in the preceding section. 1. Secure the direct play button board to the bracket with two M2×3 screws. 2. Secure the combined unit to the direct play cover assembly with one M2×3 screw. 3. Seat the direct play cover assembly and secure with two M2.5×6 screws. 4. Attach the direct play button FFC to the system board.
4 Replacement Procedures 4.22 CIR Board 4.22 CIR Board Removing the CIR Board To remove the CIR board, first remove the battery pack, then follow the steps below. 1. Remove the keyboard, HDD, main module and top cover. 2. Release the CIR FFC and direct play button FFC from the system board. 3. Remove two M2.5×6 screws securing the direct play cover assembly. 4. Ease the direct play cover assembly forward through the front panel. 5. Remove one M2.5×6 screw securing the CIR board.
4.22 CIR Board 4 Replacement Procedures Installing the CIR Board To install the CIR board, follow the steps below and refer to the figure in the preceding section. 1. Seat the CIR board and secure with one M2.5×6 screw. 2. Seat the direct play cover assembly and secure with two M2.5×6 screws. 3. Attach the CIR FFC and direct play button FFC to the system board.
4 Replacement Procedures Direct play LED board 4.23 Direct play LED board Removing the Direct Play LED Board To remove the direct play LED board, first remove the battery pack, then follow the steps below. 1. Remove the keyboard, HDD, main module and top cover. 2. Release the direct play LED FPC from the system board. 3. Peel the direct play LED board off the chassis and lift out.
4.23 Direct play LED board 4 Replacement Procedures Installing the Direct Play LED Board To install the direct play LED board, follow the steps below and refer to the figure in the preceding section. 1. Stick the direct play LED board to the tape on the chassis. 2. Secure the direct play LED FPC to the system board.
4 Replacement Procedures 4.24 Audio Board 4.24 Audio Board Removing the Audio Board To remove the audio board, first remove the battery pack, then follow the steps below. 1. Remove the keyboard, HDD, main module and top cover. 2. Detach the left-side speaker cable and audio board FFC cable from the audio board. 3. Remove two M2.5×6 screws securing the audio board.
4.24 Audio Board 4 Replacement Procedures Installing the Audio Board To install the audio board, follow the steps below and refer to the figure in the preceding section. 1. Seat the audio board and secure with two M2.5×6 screws. 2. Attach the left-side speaker cable and audio board FFC cable.
4 Replacement Procedures 4.25 Speakers 4.25 Speakers Removing the Speakers To remove the speakers, first remove the battery pack, then follow the steps below. 1. Remove the keyboard, HDD, main module and top cover. 2. Turn the computer upside down and remove one M2.5×4 screw securing each speaker.
4.25 Speakers 4 Replacement Procedures 3. Place the chassis upright. Detach the left-side speaker cable from the audio board and the right-side speaker cable from the system board. 4. Remove two M2.5×4 screws securing each speaker. 5. Lift out each speaker.
4 Replacement Procedures 4.25 Speakers Installing the Speakers To install the speakers, follow the steps below and refer to the figure in the preceding section. 1. Seat each speaker. The speaker cases are marked with L (left) and R (right). 2. Secure each speaker with two M2.5×4 screws. 3. Attach the left-side speaker cable to the audio board and the right-side speaker cable to the system board. 4. Turn the computer upside down and secure each speaker with one M2.5×4 screw.
4.26 Fan Set 4 Replacement Procedures 4.26 Fan Set Removing the Fan Set To remove the fan set, first remove the battery pack, then follow the steps below. 1. Remove the keyboard, HDD, main module, CPU, modem or Bluetooth unit, expansion memory cards, wireless LAN cards, PC card(s), top cover and system board. 2. Remove five M2.5×4 screws and one M2.5×3 screw securing the fan set from inside the chassis.
4 Replacement Procedures 4.26 Fan Set 3. Turn the computer over and remove seven M2.5×4 screws securing the fan set from the base. Fig 4-43: Removing the outer chassis fan screws 4. Lift out the fan set.
4.26 Fan Set 4 Replacement Procedures Installing the Fan Set To install the fan set, follow the steps below and refer to the figure in the preceding section. 1. Seat the fan set and secure from inside the chassis with five M2.5×4 screws and one M2.5×3 screw. 2. Turn the computer over and secure the fan set with seven M2.5×4 screws from the base.
4 Replacement Procedures 4.27 Display Mask 4.27 Display Mask Removing the Display Mask To remove the display mask, first remove the battery pack, then follow the steps below. 1. Remove the main module, HDD, keyboard, top cover and display assembly. 2. Remove six mask seals to expose six screws securing the display mask. 3. Remove two M2×3 screws from the top of display assembly and another four M2.5×6 screws that were covered by the mask seals.
4.27 Display Mask 4 Replacement Procedures 3. A total of 18 snaps secure the display mask. Carefully insert your fingers between the mask and the LCD panel and pry open the snaps. Start with the four snaps at the top of the display mask. Continue unsnapping the display mask along the two sides (five snaps on each side), and the bottom edge (four snaps). Installing the Display Mask To install the display mask, follow the steps below and refer to the figures in the preceding section. 1.
4 Replacement Procedures 4.28 FL Inverter Board 4.28 FL Inverter Board Removing the FL Inverter Board To remove the FL inverter board, first remove the battery pack, then follow the steps below. 1. Remove the main module, HDD, keyboard, top cover, display assembly and display mask. 2. Remove one M2x3 screw securing the LCD cable. 3. Remove one M2x3 screw securing the FL inverter board. 4. Lift up the FL inverter board and detach the FL cable and HV cable. Remove the FL inverter board.
4.28 FL Inverter Board 4 Replacement Procedures Installing the FL Inverter Board To install the FL inverter board, follow the steps below and refer to the figure in the preceding section.. 1. Connect the FL cable and HV cable to the FL inverter board. 2. Seat the FL inverter board and secure it with t one M2x3 screw. 3. Secure the LCD cable with one M2x3 screw. 4. Install the display mask, display assembly, top cover, keyboard, HDD, main module and battery pack.
4 Replacement Procedures 4.29 LCD Module 4.29 LCD Module Removing the LCD Module To remove the LCD module, first remove the battery pack, then follow the steps below. 1. Remove the main module, HDD, keyboard, top cover, display assembly, display mask and FL inverter board. 2. Remove six M2.5×6 screws securing the LCD module. 3. Lift the LCD module out of the LCD cover.
4.28 FL Inverter Board 4 Replacement Procedures 4. Remove eight M2×3 screws securing the LCD bracket (the number of bracket screws may vary on different models). 5. Remove the LCD bracket. 6. Peel away the Kapton film securing the LCD cable. 7. Pull out LCD cable from LCD connector. Fig 4-47: Removing the LCD cable NOTE: If the LCD module malfunctions, remove the LCD cable and LCD bracket. Then replace the whole LCD module unit.
4 Replacement Procedures 4.29 LCD Module Installing the LCD Module To install the LCD module, follow the steps below and refer to the figures in the preceding section. 1. Connect the LCD cable to the LCD connector on the back of the LCD module. 2. Secure the LCD cable with Kapton film. 3. Secure the LCD bracket to the LCD module with eight M2×3 screws (the number of bracket screws may vary on different models). 4. Position the LCD module in place. 5. Secure the LCD module with six M2.5×6 screws.
Appendices
Appendices App-ii SatelliteP20-25 Series Maintenance Manual
Appendix Contents Appendix A Handling the LCD Module......................................................................... A-1 Appendix B Board Layout................................................................................................B-1 B.1 System Board (FRDSY*) Bottom View ...................................................................B-1 B.2 System Board (FRDSY*) Top View ........................................................................B-2 Appendix C Pin Assignments ......
Appendices Figures Figure B.1 System Board (FRDSY*) Bottom View........................................................B-1 Figure B.2 System Board (FRDSY*) Top View .............................................................
Tables Table B-1 System board ICs and connectors (top and bottom) ............................................B-3 Table B-2 System board ICs and connectors (top and bottom) ............................................B-4 Table C-1 SODIMM I/F pin assignments (144-pin).......................................................C-1 Table C-2 LCD I/F pin assignments (40-pin) .................................................................C-5 Table C-3 RGB I/F pin assignments (15-pin)...........................
Appendices App-vi SatelliteP20-25 Series Maintenance Manual
Appendix A Appendix A Handling the LCD Module Precautions for handling the LCD module The LCD module can be easily damaged during assembly or disassembly. Therefore, please observe the following precautions when handling it: 1. When installing the LCD module in the LCD cover, be sure to seat it so that it is properly aligned and maximum visibility of the display is maintained. 2.
3. If the panel’s surface gets dirty, wipe it with cotton or a soft cloth. If it is still dirty, try breathing on the surface to create a light condensate and wipe it again. If the surface is very dirty, we recommend a CRT cleaning agent. Apply the agent to a cloth and then wipe the panel’s surface. Do not apply cleanser directly to the panel. CRT Cleaner 4. If water or other liquid is left on the panel’s surface for a long period, it can change the screen’s tint or stain it.
5. Glass is used in the panel, so be careful not to drop it or let it strike a hard object, which could cause breakage or cracks. 6. CMOS-LSI circuits are used in the module, so guard against damage from electrostatic discharge. Be sure to wear a wrist or ankle ground when handling the module.
7. Do not expose the module to direct sunlight or strong ultraviolet rays for long periods. 8. Do not store the module at temperatures below specifications. Cold can cause the liquid crystals to freeze, lose their elasticity or otherwise suffer damage. 9. Do not disassemble the LCD module. Disassembly can cause malfunctions.
10. If you transport the module, do not use packing material that contains epoxy resin (amine) or silicon glue (alcohol or oxime). These materials can release gas that can damage the panel’s polarization.
A-6 Satellite P20-25 Series Maintenance Manual
Appendix B Board Layout B.
B.
Table B-1 System board ICs and connectors (top and bottom) Mark Number (A) U36 MCH 865PE (B) U37 LAN Controller RTL8101L (C) U49 ICH5 Intel 82801 (D) U16 BIOS ROM 512K8-90 (E) U35 VGA Chip GO5200 (F) U29,U32, U39, U40 (G) U58 AC97 Codec ALC202 (H) U8 SUPER I/O LPC47N227 (I) U25 CIR Control (J) U50 KBC/EC PC87591L (K) JP5 Keyboard Connector (L) U5 CARDBUS & SD Controller T7L58XB-0101 (M) U42 Clock Generator ICS-952623CG (N) U59 Audio Amplifier Chip TPA6011 (O) SW1
Table B-2 System board ICs and connectors (top and bottom) B-4 Mark Number Name (#A) JCPU1 CPU Socket (#B) PCN1 DC-In Connector (#C) JP17, JP33 USB Connector (#D) JP30, JP16 RJ11/RJ45 Connector (#E) JP28, JP29 ODD Connector (#F) JP14 Parallel Connector (#G) JP15 CRT Connector (#H) JP20 S-Video Connector (#I) JP34 HDD Connector (#J) JP24, JP26 SODIMM Socket (#K) JP19 MDC Module Connector (#L) JP21 PCMCIA Connector (#M) PCN2 Battery Connector (#N) JP22, JP23, JP25
Appendix C Appendix C Pin Assignments System Board C.1 JP24/JP26 SODIMM I/F (144-pin) Table C-1 SODIMM I/F pin assignments (144-pin) (1/4) Pin No. Signal name I/O Pin No. Signal Name I/O 1 VREF O 2 VREF O 3 VSS - 4 VSS - 5 DQ0 I/O 6 DQ4 I/O 7 DQ1 I/O 8 DQ5 I/O 9 25VDD O 10 2.5VDD O 11 DQS0 I/O 12 DM0 O 13 DQ2 I/O 14 DQ6 I/O 15 VSS - 16 VSS - 17 DQ3 I/O 18 DQ7 I/O 19 DQ8 I/O 20 DQ12 I/O 21 2.5VDD O 22 2.
Table C-1 SODIMM I/F pin assignments (144-pin) (2/4) Pin No. C-2 Signal name I/O Pin No. Signal Name - 52 VSS I/O 51 VSS - 53 DQ19 I/O 54 DQ23 I/O 55 DQ24 I/O 56 DQ28 I/O 57 2.5VDD O 58 2.5VDD O 59 DQ25 I/O 60 DQ29 I/O 61 DQS3 I/O 62 DM3 O 63 VSS - 64 VSS - 65 DQ26 I/O 66 DQ30 I/O 67 DQ27 I/O 68 DQ31 I/O 69 2.5VDD O 70 2.
Table C-1 SODIMM I/F pin assignments (144-pin) (3/4) Pin No. Signal name I/O Pin No. Signal Name I/O 115 A10/AP O 116 BA1 O 117 BA0 O 118 RAS# O 119 WE# O 120 CAS# O 121 SO# O 122 S1# - 123 DU - 124 DU - 125 VSS - 126 VSS - 127 DQ32 I/O 128 DQ36 I/O 129 DQ33 I/O 130 DQ37 I/O 131 2.5VDD O 132 2.
Table C-1 SODIMM I/F pin assignments (144-pin) (4/4) Pin No. C-4 Signal name I/O Pin No. Signal Name I/O 181 DQ57 I/O 182 DQ61 I/O 183 DQS7 I/O 184 DM7 O 185 VSS - 186 VSS - 187 DQ58 I/O 188 DQ62 I/O 189 DQ59 I/O 190 DQ63 I/O 191 2.5VDD O 192 2.5VDD O 193 SDA I/O 194 SA0 O 195 SCL O 196 SA1 O 197 3.
C.2 JP1 LCD I/F (40-pin) Table C-2 LCD I/F pin assignments (40-pin) Pin No. Signal name I/O Pin No.
C.3 JP15 RGB I/F (15-pin) Table C-3 RGB I/F pin assignments (15-pin) Pin No. C-6 Signal name I/O Pin No.
C.4 JP34 HDD I/F (44-pin) Table C-4 HDD I/F pin assignments (44-pin) Pin No. Signal name I/O Pin No.
C.5 JP28 Main Module I/F (60-pin) Table C-5 CD-ROM I/F pin assignments (50-pin) Pin No. C-8 Signal name I/O Pin No.
C.6 JP29 Second Module I/F (60-pin) Table C-5 CD-ROM I/F pin assignments (50-pin) Pin No. Signal name I/O Pin No.
C.7 JP14 Parallel I/F (25-pin) Table C-6 Parallel I/F pin assignments (25-pin) Pin No. C-10 Signal name I/O Pin No.
C.8 JP21 PC Card I/F (150-pin) Table C-7 PC Card I/F pin assignments (154-pin) (1/3) Pin No. Signal name I/O Pin No.
Table C-7 PC Card I/F pin assignments (154-pin) (2/3) Pin No. Signal name Pin No.
Table C-7 PC Card I/F pin assignments (154-pin) (3/3) Pin No. Signal name I/O Pin No.
C.9 JP27 Mini PCI I/F (124-pin) Table C-8 Mini PCI I/F pin assignments (124-pin) (1/2) Pin No. C-14 Signal name I/O Pin No. Signal Name I/O 1 NC - 2 NC - 3 NC - 4 NC - 5 NC - 6 NC - 7 NC - 8 NC - 9 NC - 10 NC - 11 NC - 12 NC - 13 SWITCH O 14 NC - 15 NC - 16 NC - 17 IRQA I 18 +5VS O 19 3V O 20 IRQD I 21 NC - 22 NC - 23 GNGNDD - 24 3.
Table C-8 Mini PCI I/F pin assignments (124-pin)(1/2) Pin No. Signal name I/O Pin No.
C.10 JP22, JP23, JP25 Fan I/F (3-pin) Table C-9-1 JP22 Fan I/F pin assignments (3-pin) Pin No. Signal name I/O Pin No. 2 1 FAN2-1 O 3 GND - Signal Name FAN-DET_F I/O I Table C-9-2 JP23 Fan I/F pin assignments (3-pin) Pin No. Signal name I/O Pin No. Signal Name I/O 2 FAN-SPEED2 I 1 FAN2 O 3 GND - Table C-9-3 JP25 Fan I/F pin assignments (4-pin) Pin No. Signal name I/O Pin No. Signal Name I/O 1 GND - 2 FAN-SPEED I 3 NC - 4 FAN1 O C.
C.13 Headphone Connector (6-pin) Table C-12 Headphone Connector pin assignments (6-pin) Pin No. Signal name I/O Pin No.
C-18 Satellite P20-25 Series Maintenance Manual
Appendix D Appendix D Keyboard Scan/Character Codes Table D-1 Scan codes (set 1 and set 2) (1/4) Cap No.
Table D-1 Scan codes (set 1 and set 2) (2/4) D-2 Cap No.
Table D-1 Scan codes (set 1 and set 2) (3/4) Cap No.
Table D-1 Scan codes (set 1 and set 2) (4/4) Cap No. Keytop Code set 1 122 F11 57 D7 78 F0 78 *3 123 F12 58 D8 07 F0 07 *3 124 PrintSc *6 *6 *6 *6 *6 126 Pause *7 *7 *7 *7 *7 X Fn — — — — *4 X Win E0 5B E0 DB E0 1F E0 F0 1F x App E0 5D E0 DD E0 2F E0 F0 2F Make Code set 2 Break Make Note Break Notes: 1. 2. 3. 4. 5. 6. 7. D-4 * Scan codes differ by mode. * Scan codes differ by overlay function.
Table D-2 Scan codes with left Shift key Cap Key Code set 1 No.
Table D-3 Scan codes in Numlock mode Cap Key Code set 1 No.
Table D-5 Scan codes in overlay mode Cap No. Code set 1 Keytop Code set 2 Make Break Make Break 09 8 (8) 48 C8 75 F0 75 10 9 (9) 49 C9 7D F0 7D 11 0 (*) 37 B7 7C F0 7C 23 U (4) 4B CB 6B F0 6B 24 I (5) 4C CC 73 F0 73 25 O (6) 4D CD 74 F0 74 26 P (–) 4A CA 7B F0 7B 37 J (1) 4F CF 69 F0 69 38 K (2) 50 D0 72 F0 72 39 L (3) 51 D1 7A F0 7A 40 ; (+) 4E CE 79 F0 79 52 M (0) 52 D2 70 F0 70 54 . (.
Table D-7 No.126 key scan code Key top Pause Shift Code set 1 Code set 2 Make Make Common E1 1D 45 E1 Ctrl E0 46 E0 C6 9D C5 E1 14 77 E1 F0 E0 7E E0 F0 7E 14 F0 77 *: This key generates only make codes.
Appendix E Appendix E E.1 Key Layout United States (US) Keyboard Figure E-1 US keyboard E.
E.3 Spanish (SP) Keyboard Figure E-3 SP keyboard E.
E.
E-4 Satellite P20 Series Maintenance Manual
Appendix F Series Screw Torque List Table F-1 Series Screw Torque List SCREW P/N SCREW SPEC Q'ty LOCATION MAC925006Z0 M2.5*6 2 HING ASSY/L&R TO COVER SUB ASSY MAC925006Z0 M2.5*6 6 170" LCD BKTs TO COVER SUB ASSY MAC925006Z0 M2.5*6 4 LCD BEZEL TO COVER MAC925006Z0 M2.5*6 2 AUDIO PCB TO LL MAC925006Z0 M2.5*6 1 CIR PCB TO LL MAC925006Z0 M2.5*6 2 DIRECT BKT THRU CIR PCB TO LL MAC925006Z0 M2.5*6 3 MB TO BODY FRAME ASSY MAC925006Z0 M2.
F-2 SCREW P/N SCREW SPEC Q'ty LOCATION MACA0007204 M2.5*3 2 MDC TO MB MACA0007204 M2.5*3 2 USER KEY FPC SUPP TO LOGIC UP (R) MACA0007204 M2.5*3 4 PWR FPC SUPP PLATE TO LOGIC UP ( L ) MACA0007204 M2.5*3 2 TP PCB TO LOGIC UP MACA0007204 M2.5*3 5 TP BKT TO LOGIC UP MACA0007204 M2.5*3 2 MODULE LATCH TO LL (L/R SIDE) MACA0007204 M2.5*3 1 UP HINGE COVER TO LOGIC TOP SIDE MACA0007204 M2.5*3 3 LL TO LU BOTTOM SIDE MACA0007204 M2.5*3 2 K/B ASSY TO LOGIC MACA0007204 M2.
SCREW P/N SCREW SPEC Q'ty LOCATION MACK20040N0 M2*4 2 BLUETOOTH TO MB MACK20040N0 M2*4 2 UP HINGE COVER TO IO DOOR BACK SIDE MACK20040N0 M2*4 5 DVD MODULE MKE / HOUSING/PANEL MACK20040N0 M2*4 5 COMBO MODULE KME /HOUSING/PANEL MACK20040N0 M2*4 5 DVD MODULE TOSHIBA / HOUSING MACK20040N0 M2*4 5 COMBO MODULE TOSHIBA / HOUSING MMCK20040N1 M2*4 4 MODULE CONN TO MB MMCK20040N1 M2*4 2 UP HINGE COVER TO IO DOOR BACK SIDE MACK25001Z0 M2.
F-4 Satellite P20-25 Series Maintenance Manual
Appendix G Appendix G Reliability The following table shows MTBF (Mean Time Between Failures) for each component.
G-2 Satellite P20 Series Maintenance Manual
