Instruction/ maintenance manual of the product L20 Toshiba
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Toshiba Personal Computer Satellite L20 Series Maintenance Manual TOSHIBA CORPORATION File Number 960-Q01.
Chapter-0 2 Satellite L20 Maintenance Manual (960-Q01) 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 inform ation contained herein.
Chapter-0 Satellite L20 Maintenance Manual (960-Q01) 3 Preface This maintenance manual describes how to perform hardware service maintenance for the Toshiba Personal Computer Satellite L20 Series.
Chapter-0 4 Satellite L20 Maintenance Manual (960-Q01) The manual is divided into the following parts: Chapter 1 Hardware Overview describes the Satellite L20 system unit and each FRU. Chapter 2 Troubleshooting Procedures explains how to diagnose and resolve FRU problems.
Chapter-0 Satellite L20 Maintenance Manual (960-Q01) 5 Conventions This manual uses the following formats to describe, identify, and highlight term s and operating procedures. Acronyms On the first appearance and whenever necessary for clarification acronyms are enclosed in parentheses following their definition.
Chapter-0 6 Satellite L20 Maintenance Manual (960-Q01) Table of Contents Chapter 1 Hardware Overview 1.1 Features ................................................................................................................... .......1 1.2 System Block Diagram .
Chapter-0 Satellite L20 Maintenance Manual (960-Q01) 7 Procedure 1 Message Check ....................................................................... 48 Procedure 2 Debugging Port Check ............................................................ 50 Procedure 3 Diagnostic Test Program Execution Check .
Chapter-0 8 Satellite L20 Maintenance Manual (960-Q01) 2.9 Display Troubleshooting..............................................................................................70 Procedure 1 External Monitor Check......................................
Chapter-0 Satellite L20 Maintenance Manual (960-Q01) 9 3.9 Hard Disk Test .......................................................................................................... 115 3.10 Real Time Clock Test ........................................
Chapter-0 10 Satellite L20 Maintenance Manual (960-Q01) Chapter 4 Replacement Procedures 4.1 Overview ................................................................................................................... .144 Safety Precautions .........
Chapter-0 Satellite L20 Maintenance Manual (960-Q01) 11 Appendices Appendix A Handling the LCD Module ........................................................................... A-1 Appendix B Board Layout .............................................
Chapter-0 12 Satellite L20 Maintenance Manual (960-Q01).
Satellite L20 Ma intenance Manual(9 60-Q01) 1-i Chapter 1 Hardware Overview.
1-ii Satellite L20 Maintenan ce Manu al ( 96 0 -Q 01) 1 Hardware Overview.
Satellite L20 Maintenance Manual(960-Q01 ) 1-iii Chapter 1 Contents 1.1 Features ................................................................................................................... .......1 1.2 System Block Diagram ....................
1-iv Satellite L20 Maintenan ce Manu al ( 96 0 -Q 01) Figures Figure 1-1 Front of the computer a nd the system units configuration ................................5 Figure 1-2 System block diagram ......................................................
Chapter 1 Hardware Overview Satellite L20 Maintenan ce Manual(960-Q01) 1 Features 1.1 Features The Satellite L20 (ATI Platform ) series are 2 spindle PCs running a Intel ® Celeron ® -M processor. The features are listed below. θ Microprocessor Microprocessor that is used will be d ifferent of the m odel.
Chatper 1 Hardware Overview 2 Satellite L20 Maintenan ce Manual (960-Q01) USB FDD supports 720KB and 1.44MB..
Chapter 1 Hardware Overview Satellite L20 Maintenan ce Manual(960-Q01) 3 θ Display LCD Built-in 15.0-inch, XGA (1024 x 768 dots), 262,144 colors, amorphous silicon TFT color display. CRT Supported via a RGB connector. TV-out S-VIDEO OUT port supported.
Chatper 1 Hardware Overview 4 Satellite L20 Maintenan ce Manual (960-Q01) θ Optical devices A DVD-ROM & CD-R/RW drive or DVD Super Multi drive is equipped. θ Battery The RTC battery is equipped inside the computer. The main battery is a de tachable lithium ion battery (4,300mAh:Li-Ion, 8cell).
Chapter 1 Hardware Overview Figure 1-1 (ATI Platform ))Front of the co mputer and the system units configuration Satellite L20 Maintenan ce Manual(960-Q01) 5.
Chatper 1 Hardware Overview 1.2 System Block Diagram Figure 1-2 a/b shows the system block diagram. Figure 1-2 System block di agram for ATI 410MB Platform 6 Satellite L20 Maintenan ce Manual (960-Q01.
Chapter 1 Hardware Overview Satellite L20 Maintenan ce Manual(960-Q01) 7 The PC contains the following components. θ CPU θ it supports Celeron-M CPU as follows Intel ® Celeron ® -M 350 (1.30GHz) 360 (1.40GHz) 370 (1.50GHz) 380 (1.6GHz) L1 cache : 64KB (32KB + 32KB) L2 cache : 1MB FSB : 400MHz Core voltage : 1.
Chatper 1 Hardware Overview 8 Satellite L20 Maintenan ce Manual (960-Q01) • South Bridge − ATI SB400 for Celeron-M Platform − PCI slot − IDE controller − SATA controller − DMA controller − USB host interface − USB 2.
Chapter 1 Hardware Overview Satellite L20 Maintenan ce Manual(960-Q01) 9 θ VGA controller • Intel VGA − VRAM 32MB/64MB − LVDS − Or ATI − VRAM 32MB/64MB/128MB − LVDS θ Other main system c.
Chatper 1 Hardware Overview 10 Satellite L20 Maintenan ce Manual (960-Q01) θ MODEM (Conexant 20493-21x 1) Supported by on board Modem + DAA daughter card. Data and FAX transmission is available. Supports ITU-TV.90. The transfer speed of data receiving is 56kbps, of data sending is 33.
Chapter 1 Hardware Overview 1.3 2.5-inch Hard Disk Drive A compact, high-capacity HDD with a height of 9.5mm. Contains a 2.5-inch magnetic disk and magnetic heads. Figure 1-3 shows a view of the 2.5-inch HDD and Tables 1-1 and 1-2 list the specifications.
Chatper 1 Hardware Overview 12 Satellite L20 Maintenan ce Manual (960-Q01) Toshiba MK1031GAS Toshiba MK8025GAS Toshiba MK6025GAS Toshiba MK4025GAS Width (mm) 69.
Chapter 1 Hardware Overview Satellite L20 Maintenan ce Manual(960-Q01) 13 Table 1-2 2.5-inch HDD Specifications Specification Parameter Fujitsu MHV2100AT Fujitsu MHV2080AT Fujitsu MHV2060AT Fujitsu MH.
Chatper 1 Hardware Overview 14 Satellite L20 Maintenan ce Manual (960-Q01) Specification Parameter Toshiba MK1031GAS Toshiba MK8025GAS Toshiba MK6025GAS Toshiba MK4025GAS Storage size (formatted) 100G.
Chapter 1 Hardware Overview 1.4 Optical Drive 1.4.1 DVD-ROM & CD-R/RW Drive The DVD-ROM & CD-R/RW drive accommodates e ither 12 cm (4.72-inch) or 8 cm (3.15- inch) CD/DVD-ROM and CD-R/RW. It is a high-performance driv e that reads DVD at maximum 8-speed and CD at m aximum 24-speed.
Chatper 1 Hardware Overview 16 Satellite L20 Maintenan ce Manual (960-Q01) Table 1-4 DVD-ROM & CD-R/RW drive specifications (1/3) Drive Specification Parameter MATSUSHITA (UJDA7 70TT-A) Read (KB/s) DVD-ROM MAX 8X CAV (MAX 10800 kB/s) CD-ROM MAX 24X CAV (MAX 3600 kB/s) Write CD-R 4X , 8X (CLV), 16XZCLV, MAX.
Chapter 1 Hardware Overview Satellite L20 Maintenan ce Manual(960-Q01) 17 Table 1-4 DVD-ROM & CD-R/RW drive specifications (2/3) Drive Specification Parameter HLDS (GCC-4244N.ATAKN0) Read (KB/s) DVD-ROM Single Layer3.3x -8x (CAV):Approx. 4,710 r/min Dual Layer3.
Chatper 1 Hardware Overview 18 Satellite L20 Maintenan ce Manual (960-Q01) CD-ROM 110ms (typ.) Access time (ms) (Random) DVD-ROM 120ms (typ.) Buffer memory 2MB CD CD-ROM Mode1&2S CD-ROM XA Modo2 (.
Chapter 1 Hardware Overview Satellite L20 Maintenan ce Manual(960-Q01) 19 Table 1-4 DVD-ROM & CD-R/RW drive specifications (3/3) Drive Specification Parameter TSST (TS-L462C/TOHJ,I.
Chatper 1 Hardware Overview 1.4.2 DVD Su per Multi Drive The DVD Super Multi drive accommodates eith er 12 cm (4.72-inch) or 8 cm (3.15-inch) CD/DVD-ROM, CD-R/RW, DVD±R/±RW and DVD-RA M. It is a high-performance drive that reads DVD-ROM at maximum 8-speed a nd CD at maximum 24-sp eed.
Chapter 1 Hardware Overview Satellite L20 Maintenan ce Manual(960-Q01) 21 Table 1-6 DVD Super Multi drive specifications (1/4) Drive Specification Parameter MATSUSHITA (UJ-841 BT Q-A) Read(KB/s) DVD-ROM MAX 8X CAV (MAX 10800 kB/s) CD-ROM MAX 24X CAV (MAX 3600 kB/s) Write CD-R 4X , 8X (CLV) , MAX.
Chatper 1 Hardware Overview 22 Satellite L20 Maintenan ce Manual (960-Q01) Table 1-7 DVD Super Multi drive specifications (2/4) Drive Specification Parameter HLDS (GSA-4082N.ATAKN0) Read(KB/s) DVD-R/RW/R OM 8x/8x/8x max. DVD-RAM (Ver.1.0)2x (Ver.2.2)2x, 3x, 5x DVD-Video (CSSCompliant Disc)4x max.
Chapter 1 Hardware Overview Satellite L20 Maintenan ce Manual(960-Q01) 23 Table 1-8 DVD Super Multi drive specifications (3/4) Drive Specification Parameter Pioneer(DVR-K16TBA) Read(KB/s) 8X CAV at DV.
Chatper 1 Hardware Overview 24 Satellite L20 Maintenan ce Manual (960-Q01) Table 1-9 DVD Super Multi drive specifications (4/4) Drive Specification Parameter TEAC (DV-W28EA) Read(KB/s) 8X CAV at DVD-R.
Chapter 1 Hardware Overview Satellite L20 Maintenan ce Manual(960-Q01) 25.
Chatper 1 Hardware Overview 1.5 Keyboard A keyboard which consists of 84(US)/85(Euro) keys is mounted on the system unit. The keyboard is connected to membrane connector on the system board and controlled by the keyboard controller. Figure 1-6 is a view of the keyboard.
Chapter 1 Hardware Overview 1.6 TFT Color Display The TFT color display is 15.0 inch and consis ts of LCD module and FL inverter board. 1.6.1 LCD Module The LCD module used for the TFT color display us es a backlight as the light source and can display a maximum of 262,144 colors with 1,024 x 768 resolution.
Chatper 1 Hardware Overview 28 Satellite L20 Maintenan ce Manual (960-Q01).
Chapter 1 Hardware Overview Satellite L20 Maintenan ce Manual(960-Q01) 29 1.6.2 FL Inverter Board The FL inverter board supplies a high freque ncy current to illuminate the LCD module FL.
Chatper 1 Hardware Overview 30 Satellite L20 Maintenan ce Manual (960-Q01) 1.7 Power Supply The power supply supplies 23 different voltages to the system board. The power supply microcontroller has the following functions. 1. Judges if the DC power supply (AC adap ter) is connected to the computer.
Chapter 1 Hardware Overview Satellite L20 Maintenan ce Manual(960-Q01) 31 Voltage [V] Pow er OFF Suspend mode Power OFF Boot mode No Battery Object VCC_CORE 1.484 - 0.748 No No No CPU VTT 1.05 No No No CPU, 915GM, ICH4-M +1.8V 1.8 No No No CPU, 915GM,ICH4-M +1.
Chatper 1 Hardware Overview 32 Satellite L20 Maintenan ce Manual (960-Q01) 1.8 Batteries The PC has the following two batteries. θ Main battery θ Real time clock (RTC) battery Table 1-12 lists the specifica tions for these two batteries.
Chapter 1 Hardware Overview Satellite L20 Maintenan ce Manual(960-Q01) 33 1.8.2 Batter y Charging Control Battery charging is controlled by a power supply microprocessor. The power supply microprocessor controls power supply and dete cts a full charge when the AC adaptor and battery are connected to the computer.
Chatper 1 Hardware Overview 34 Satellite L20 Maintenan ce Manual (960-Q01) 1.8.3 RTC Battery The RTC battery provides the power supply to maintain the date, time, and other system information in memory. Table 1-13 lists the Time required for charges of RTC battery and data preservation time.
Chapter 1 Hardware Overview Satellite L20 Maintenan ce Manual(960-Q01) 35 1.9 AC Adapter The AC adapter is used to charge the battery. Table 1-14 lists the AC adapter specifications.
2 Troubleshooting 2-i EQUIUM M40/M45/Satellite M40/M45 Maintena nce Manual 2 Chapter 2 Troubleshooting.
2 Troubleshooting 2-ii EQUIUM M40/M45/Satellite M40/M45 Maintena nce Manual Chapter 2 Contents 2.1 Outline .................................................................................................................... 2-1 2.2 Basic Flowchart ...
2 Troubleshooting EQUIUM M40/M45/Satellite M40/M45 Maintena nce Manual 2- iii Procedure 2 Connector Check and Replacement Check................................ 2-21 2.11 IEEE 1394 Test(Optional) ........................................................
2 Troubleshooting 2-iv EQUIUM M40/M45/Satellite M40/M45 Maintena nce Manual Figures Figure 2-1 Basic flowchart(1/2)....................................................................................... 2-3 Tables Table 2-1 HDD error code and status .
2.1 Outline 2 Troubleshooting EQUIUM M40/M45/Satellite M40/M45 Maintena nce Manual 2-1 2.1 Outline This chapter describes the fault diagnosis proced ures for field replaceable units (FRUs) in the computer. The FRUs covered here are as follows: 1. System board 2.
2 Troubleshooting 2.2 Basic Flowchart 2-2 EQUIUM M40/M45/Satellite M40/M45 Maintena nce Manual 2.2 Basic Flowchart The basic flowchart in Figure 2-1 serves as a guide for identifying a possibly faulty FRU.
2.2 Basic Flowchart 2 Troubleshooting Star t Connect the AC Adapter DC IN LED on ?? BATTERY LED on ?? Turn the power on. Any error message displayed ?? Message "In Touch with Tomorrow Toshiba" displayed Follow the power supply diagnostic p rocedure in Section 2.
2 Troubleshooting 2.2 Basic Flowchart Keyboard works well ?? Follow the keyboard diagnostic procedure in Section 2.6 N o 1 Insert Bootable CD into ODD Diagnostic Program Loaded ?? Perform each test with the diagnostic program. Any error detected by the diagnostic program ?? Perform the continuous test to check if the error is intermittent.
2.2 Basic Flowchart 2 Troubleshooting EQUIUM M40/M45/Satellite M40/M45 Maintena nce Manual 2-5 If the diagnostic program cannot detect an e rror, the erro r may be intermittent.
2 Troubleshooting 2.3 Power Supply 2-6 EQUIUM M40/M45/Satellite M40/M45 Maintena nce Manual 2.3 Power Supply The power supply in the computer controls ma ny functions and com ponents. To check if the power supply is defective or malfunctioning, fo llow the troubleshooting procedures below as instructed.
2.3 Power Supply 2 Troubleshooting EQUIUM M40/M45/Satellite M40/M45 Maintena nce Manual 2-7 DC IN LED DC IN LED Power supply status On in Blue or Green DC power being supplied (from the AC a dapter) Off Battery damage and can’t charge d uri ng DC-in.
2 Troubleshooting 2.3 Power Supply Procedure 2 Connection Check Power is supplied to the system board as illustrated below: AC adaptor System board AC power cord AC adaptor cord Battery pack Follow th.
2.4 System Board 2 Troubleshooting EQUIUM M40/M45/Satellite M40/M45 Maintena nce Manual 2-9 2.4 System Board To check if the system board is defectiv e or malfunctioning, follow the troubleshooting procedures below as instructed.
2 Troubleshooting 2.4 System Board 2-10 EQUIUM M40/M45/Satellite M40/M45 Maintena nce Manual Procedure 2 Test Program Check The maintenance test program contains seve ral program s for diagnosing the system board and CPU. Execute the following test programs using the procedures described in Chapter 3.
2.5 2.5-inch HDD 2 Troubleshooting EQUIUM M40/M45/Satellite M40/M45 Maintena nce Manual 2-11 2.5 2.5-inch HDD To check if the 2.5-inch HDD is defective or malfunctioning, follow the troubleshooting procedures below as instructed.
2 Troubleshooting 2.5 2.5-inch HDD 2-12 EQUIUM M40/M45/Satellite M40/M45 Maintena nce Manual create a DOS partition on drive C. Then restart the computer.. If the problem persists, go to Procedure 3. Check 3 If drive C is listed as active in the FDISK menu, perform Check 4.
2.5 2.5-inch HDD 2 Troubleshooting Procedure 4 Test Program Check Run the HDD test program stored on the maintenance test program disk for all test items. See Chapter 3 for details on how to use the test program. If an error is detected during the HDD test, an error code and status will be displayed.
2 Troubleshooting 2.5 2.5-inch HDD Procedure 5 Connector Check and Replacement Check The HDD or system board may be faulty. Di sassemble the computer following the steps described in Chapter 4 and perform the following checks: Check 1 Make sure the following connect ors have been firmly connected to the HDD, system board and CPU.
2.6 Keyboard 2 Troubleshooting 2.6 Keyboard To check if the computer’s keyboard is defective or malfunctioning, follow the troubleshooting procedures below as instructed.
2 Troubleshooting 2.7 Display 2.7 Display To check if the computer’s display is def ective or malfunctioning, follow the troubleshooting procedures below as instructed.
2.7 Display 2 Troubleshooting Check 3 The FL may be fault y. Replace it with a new one and return to Procedure 3. If there is still an error, perform Check 4. Check 4 The FL inverter board may be fa ulty. Replace it with a new one and return to Procedure 3.
2 Troubleshooting 2.8 ODD Driver 2.8 ODD (Optical Disk Drive) To check if the internal ODD drive is def ective or malfunctioning, follow the troubleshooting procedures below as instructed. Procedure 1 ODD Cleaning Check Procedure 2 Test Program Check Procedure 3 Connector Check and Replacement Check Procedure 1 ODD Cleaning Check 1.
2.8 ODD Drive 2 Troubleshooting EQUIUM M40/M45/Satellite M40/M45 Maintena nce Manual 2-19 Check 3 The ODD drive may be faulty. Replace the ODD drive with a new one following the steps in Chapter 4. If the ODD drive is st ill not functioning properly, perform Check 4.
2 Troubleshooting 2.9 LAN 2-20 EQUIUM M40/M45/Satellite M40/M45 Maintena nce Manual 2.9 LAN To check if the computer’s LAN is defec tive or malfunctioning, follow the troubleshooting procedures below as instructed.
2.10 Audio Test 2 Troubleshooting 2.10 Audio Test To check if the computer’s Speaker is defective or malfunctioning, follow the troubleshooting procedures below as instructed.
2 Troubleshooting 2.11 IEEE 1394 Test 2-22 EQUIUM M40/M45/Satellite M40/M45 Maintena nce Manual 2.11 IEEE 1394 Test(Optional) To check if the computer’s IEEE 1394 is defective or malfunctioning, follow the troubleshooting procedures below as instructed.
2.12 Cooling Module 2 Troubleshooting 2.12 Cooling Module To check if the computer’s cooling module is defective or malfunctioning, follow the troubleshooting procedures below as instructed.
2 Troubleshooting 2.14 Cooling Module 2-24 EQUIUM M40/M45/Satellite M40/M45 Maintena nce Manual.
Test Program for Field. 80 Satellite L20 Maintenance Manual(960-Q01) Chapter 3 Diagnostic Programs.
Test Program for Field. Satellite L20 Maintenance Manual(960-Q01) 81 Chapter 3 Contents 3.1 Tests and Diagnostics Software Overview ............................................................. 82 3.2 Executing the Diagnostic Test ....................
Test Program for Field. 82 Satellite L20 Maintenance Manual(960-Q01) 3.1 Tests and Diagnostics Software Overview This chapter explains how to use the Tests and Diagnostics Software for the Satellite L20/L25 and Satellite Pro L20/L25 computer systems. NOTES : Before starting the Tests and Diagnostics software: 1.
Test Program for Field. Satellite L20 Maintenance Manual(960-Q01) 83 3.2 Executing the Diagnostic Test MS-DOS is required to run the Diagnostics Program. To start the programs follow these steps: 1. Create a DOS bootable disk and copy all the files from the Tests and Diagnostics software to the disk.
Test Program for Field. 84 Satellite L20 Maintenance Manual(960-Q01) The following menu displays: :Select item Enter:Decision item Esc:Escape TOSHIBA Satellite(Pro) L20/L25 Diagnostics Version V1.00 (C) Copyright QUANTA Corp. 2005- [ DIAGNOSTICS MENU ] 01.
Test Program for Field. Satellite L20 Maintenance Manual(960-Q01) 85 Refer to Sections 3.4 through 3.14 for detailed descriptions of Diagnostics Tests 1 through 11. Item 88 sets the floppy disk drive and hard disk drive error retry count. Item 99 exits the submenu of the Diagnostic Test and returns to the Diagnostics Menu.
Test Program for Field. 86 Satellite L20 Maintenance Manual(960-Q01) Use the arrow keys to highlight the desired option and press Enter . Go To Test Move the highlight bar to Go To Test and press Enter to start executing the test. Test Loop Select NO to return the screen to the subtest menu after the test is com plete.
Test Program for Field. Satellite L20 Maintenance Manual(960-Q01) 87 3.3 Subtest names Table 3-1 lists the subtest names for each test program in the Diagnostic Test menu.
Test Program for Field. 88 Satellite L20 Maintenance Manual(960-Q01) Table 3-1 Subtest Names(2/3) No. Test Name No. Subtest Nam e 05 FLOPPY DISK TEST 01 02 03 04 05 Sequential Read Sequential W/R/C Ra.
Test Program for Field. Satellite L20 Maintenance Manual(960-Q01) 89 Table 3-1 Subtest Names(3/3) No. Test Name No. Subtest Name 10 MULTIMEDIA TEST 01 02 03 04 Sequential Read Test Random Read Test Re.
Test Program for Field. 90 Satellite L20 Maintenance Manual(960-Q01) 3.4 System Test To execute the System Test select 01 from the Diagnostic Test Menu, press Enter and follow the directions on the screen. The System Test contains two subtests. Move the highlight bar to the subtest you want to execute and press Enter .
Test Program for Field. Satellite L20 Maintenance Manual(960-Q01) 91 Subtest 03 CPU Temperature This will display CPU Temperature for check , press [ESC] to exit .
Test Program for Field. 92 Satellite L20 Maintenance Manual(960-Q01) 3.5 Memory Test To execute the Memory Test select 02 from the Diagnostic Test Menu, press Enter and follow the directions on the screen. The Memory Test contains five subtests that test the computer’s mem ory.
Test Program for Field. Satellite L20 Maintenance Manual(960-Q01) 93 5. Address pattern test “16 bit write and 16 bit read” of address pattern data is executed and the new data is compared with the original data. Test data = 0000H, 0004H, 0008H, 000CH,.
Test Program for Field. 94 Satellite L20 Maintenance Manual(960-Q01) Test Process: 1. Checks the memory size to determ ine the maximum size of installed memor y. 2. Tests memory addresses 0 to the m aximum installed. 3. Writes, reads, and compares test data after a m emory refresh cycle (16ms or more).
Test Program for Field. Satellite L20 Maintenance Manual(960-Q01) 95 3.6 Keyboard Test To execute the Keyboard Test select 03 from the Diagnostic Test Menu, press Enter and follow the directions on the screen. The Keyboard Test contains seven subtests that test the computer’s keyboard and mouse actions.
Test Program for Field. 96 Satellite L20 Maintenance Manual(960-Q01) Subtest 04 Hot Key Display [4 Key] This subtest is used for the 4 hot key and functions the same as Subtest 1. Subtest 05 Hot Key Display [5 Key] This subtest is used for the 5 hot key and functions the same as Subtest 1.
Test Program for Field. Satellite L20 Maintenance Manual(960-Q01) 97 LEFT PRESS RIGHT PRESS TOUCH_PAD TEST Please Do Not Press the Left and Right Button At The Same Time.
Test Program for Field. 98 Satellite L20 Maintenance Manual(960-Q01) 3.7 Display Test To execute the Display Test select 04 from the Diagnostic Test Menu, press Enter and follow the directions displayed on the screen. The Display Test contains twelve subtests that test the display in various modes.
Test Program for Field. Satellite L20 Maintenance Manual(960-Q01) 99 Press Enter if NO was selected for Test Loop on the Test Parameter Menu. Press Ctrl + break if YES was selected for Test Loop on the Test Parameter Menu. Subtest 02 Character Set This subtest displays the character codes 00H - FFH, using Mode 01H (40*25).
Test Program for Field. 100 Satellite L20 Maintenance Manual(960-Q01) Subtest 03 80 * 25 Character Display This subtest uses 80*25 video resolution to display character codes 20H - 7EH using Mode 03H (80*25). The data displayed is shifted 1 byte to the left for each line as shown below.
Test Program for Field. Satellite L20 Maintenance Manual(960-Q01) 101 Subtest 04 320 * 200 Character Display This subtest uses 320*200 video resolution to display green, red and yellow followed by cyan, magenta, and white. The screen below shows the displays when this subtest is executed.
Test Program for Field. 102 Satellite L20 Maintenance Manual(960-Q01) Press ENTER to display 64 gradations of red, green, blue and white on the screen To exit this subtest and return to the Display Test m enu: Press Enter if NO was selected for Test Loop on the Test Parameter Menu.
Test Program for Field. Satellite L20 Maintenance Manual(960-Q01) 103 Subtest 05 640 * 200 Character Display This subtest uses 640*200 video resolution to display three windows, each window drives a different set of dots: even dots, odd dots and all dots.
Test Program for Field. 104 Satellite L20 Maintenance Manual(960-Q01) Subtest 06 640 * 480 Character Display This subtest uses 640*350 video resolution to display 16 colors: black, blue, green, cyan, red, magenta, brown, white, dark gray, light blue, light green, light cyan, light red, light magenta, yellow, and intensified white.
Test Program for Field. Satellite L20 Maintenance Manual(960-Q01) 105 To exit this subtest and return to the Display Test m enu: Press Enter if NO was selected for Test Loop on the Test Parameter Menu. Press Ctrl + break if YES was selected for Test Loop on the Test Parameter Menu.
Test Program for Field. 106 Satellite L20 Maintenance Manual(960-Q01) Subtest 07 Display Page This subtest displays video pages zero through seven. To exit this subtest and return to the Display Test m enu: Press Enter if NO was selected for Test Loop on the Test Parameter Menu.
Test Program for Field. Satellite L20 Maintenance Manual(960-Q01) 107 Subtest 08 "H" Pattern Display This subtest displays a full screen of "H" patterns. To exit this subtest and return to the Display Test m enu: Press Enter if NO was selected for Test Loop on the Test Parameter Menu.
Test Program for Field. 108 Satellite L20 Maintenance Manual(960-Q01) Subtest 10 Color Graphics Display This subtest displays three colors, cyan, white and yellow on the screen as shown below. To exit this subtest and return to the Display Test m enu: Press Enter if NO was selected for Test Loop on the Test Parameter Menu.
Test Program for Field. Satellite L20 Maintenance Manual(960-Q01) 109 Subtest 11 Color Attributes Display This subtest displays 16 colors: black, blue, green, cyan, red, magenta, brown, white, dark gray, light blue, light green, light cyan, light red, light magenta, yellow, and intensified white.
Test Program for Field. 110 Satellite L20 Maintenance Manual(960-Q01) NOTE: The following screen does not display correctly. It will be amended in the next version. Press Enter to execute the VRAM mapping test which displays a vertical line at four dot intervals using Mode 12.
Test Program for Field. Satellite L20 Maintenance Manual(960-Q01) 111 To exit this subtest and return to the Display Test m enu: Press Enter if NO was selected for Test Loop on the Test Parameter Menu. Press Ctrl + break if YES was selected for Test Loop on the Test Parameter Menu.
Test Program for Field. 112 Satellite L20 Maintenance Manual(960-Q01) Subtest 12 Color Tiling This subtest displays black, gray, white, and 3 gradations of red, green, and blue as shown in the following display.
Test Program for Field. Satellite L20 Maintenance Manual(960-Q01) 113 3.8 Floppy Disk Test CAUTION : Before running the floppy disk test, prepare a formatted work disk. Remove the diagnostics disk and insert the work disk into the FDD. The contents of the floppy disk will be erased.
Test Program for Field. 114 Satellite L20 Maintenance Manual(960-Q01) Subtest 04 Write Specified Address NOTE : The first two digits of the ADDRESS indicate which track is being tested, the next two digits indicates the head, and the last two digits indicate the sector.
Test Program for Field. Satellite L20 Maintenance Manual(960-Q01) 115 3.9 Hard Disk Test To execute the Hard Disk Test select 06 from the Diagnostic Test Menu, press Enter and follow the directions on the screen. The Hard Disk Test contains eight subtests that test the functions of the hard disk drive.
Test Program for Field. 116 Satellite L20 Maintenance Manual(960-Q01) Subtest 04 Cross Talk and Peak Shift This subtest writes eight of the most likely to fail data patterns (shown below) to a cylinder on the HDD, then reads the data while moving from cylinder to cylinder.
Test Program for Field. Satellite L20 Maintenance Manual(960-Q01) 117 Subtest 07 Sequential Write This subtest writes specified data to all cylinders on the HDD.
Test Program for Field. 118 Satellite L20 Maintenance Manual(960-Q01) 3.10 Real Time Clock Test To execute the Real Time Clock Test select 07 from the Diagnostic Test Menu, press Enter and follow the directions on the screen. The Real Time Clock Test contains three subtests that test the computer’s real time functions.
Test Program for Field. Satellite L20 Maintenance Manual(960-Q01) 119 Subtest 02 Backup Memory This subtest writes 50 bytes of test data (FFH, AAH, 55H, and 00H) to the CMOS 14 th address, then reads the new data and compares it to the original data.
Test Program for Field. 120 Satellite L20 Maintenance Manual(960-Q01) 3.11 Cache Memory Test To execute the Cache Memory Test select 08 from the Diagnostic Test Menu, press Enter and follow the directions on the screen. The Cach e Memory Test contains eight subtests that test the computer's cache m emory.
Test Program for Field. Satellite L20 Maintenance Manual(960-Q01) 121 Subtest 04 Bit Shift Pattern Test This subtest reads the contents of cache memory and saves it into RAM. The subtest then writes the bit shift data patterns (1 bit shifted every 4 bytes ), reads the new data and compares the result with the original data.
Test Program for Field. 122 Satellite L20 Maintenance Manual(960-Q01) 3.12 High Resolution Display Test To execute the High Resolution Display Test select 09 from the Diagnostic Test Menu, press Enter and follow the directions on the screen.
Test Program for Field. Satellite L20 Maintenance Manual(960-Q01) 123 [ 640*480 256 ] Press [ Enter ]key 0---+---1---+---2---+---3---+---4---+---5---+---6--- 256 letter types indication WHITE RED GREE.
Test Program for Field. 124 Satellite L20 Maintenance Manual(960-Q01) [ 800*600 256 ] Press [ Enter ] key 0---+---1---+---2---+---3---+---4---+---5---+---6--- 256 letter ty pes indication WHITE RED GR.
Test Program for Field. Satellite L20 Maintenance Manual(960-Q01) 125 [ 1024*768 256 ] Press [ Enter ] key 0---+---1---+---2---+---3---+---4---+---5---+---6--- 256 letter ty pes indication WHITE RED G.
Test Program for Field. 126 Satellite L20 Maintenance Manual(960-Q01) Subtest 05 “H” Pattern Display This subtest uses the 1024*768 Mode to display a high resolution white frame, “H” letters (8*16 pixels fonts), at 128 letters by 48 lines.
Test Program for Field. Satellite L20 Maintenance Manual(960-Q01) 127 Subtest 06 Focus Test ( “E” Pattern) This subtest sets the 1024*768 Mode and displays “E” patterns (18*18 dot fonts), at 56 letters *42 lines surrounded by a high resolution white frame.
Test Program for Field. 128 Satellite L20 Maintenance Manual(960-Q01) 3.13 Multimedia Test To execute the Multimedia Test select 10 from the Diagnostic Test Menu, press Enter and follow the directions on the screen. The Multimedia Test contains four subtests that test the computer's m ultimedia functions.
Test Program for Field. Satellite L20 Maintenance Manual(960-Q01) 129 3.14 MEMORY2 Test To execute the Expansion Test select 11 from the Diagnostic Test Menu, press Enter and follow the directions on the screen. The MEMORY2 Test contains four subtests that test the computer's.
Test Program for Field. 130 Satellite L20 Maintenance Manual(960-Q01) Tee test method is the same as Subtest2. However, the data to be used differs. 7FFF7FFF7FFF7FFF8000800080008000 BFFFBFFFBFFFBFFF40.
Test Program for Field. Satellite L20 Maintenance Manual(960-Q01) 131 3.15 Error Codes and Error Status Names The following table lists the error codes and error status names for the Diagnostic Tests.
Test Program for Field. 132 Satellite L20 Maintenance Manual(960-Q01) Table 3-2 Error codes and error status names (2/2) NOTE: If error status name is Other Error , please reference the Error Code for.
Test Program for Field. Satellite L20 Maintenance Manual(960-Q01) 133 3.16 Running Test NOTES : 1. You may add or delete subtests using the Running Test Edit Item function, see Section 3.20. 2. Do not forget to insert a work disk in the FDD. If a work disk is not inserted an error will be generated during the Floppy Disk Test.
Test Program for Field. 134 Satellite L20 Maintenance Manual(960-Q01) 3.17 DMI INFOEMATION Select 03 from the Diagnostics Menu and press Enter to Check or W rite DMI Information Data: 3.
Test Program for Field. Satellite L20 Maintenance Manual(960-Q01) 135 Note : Please Check New DMI Information After System Restart !! 1. **** Manufacture Name ( TOSHIBA ) - (15) 2. **** Product Name ( Satellite XXXXXX ) - (31) 3. **** Part Number ( PSL20X-XXXXXX ) - (15) 4.
Test Program for Field. 136 Satellite L20 Maintenance Manual(960-Q01) 3.18 Log Utilities This function logs error information generated while a test is in progress and stores the results in RAM (Maximum error log : 500 tim es). This function can store data on a floppy disk.
Test Program for Field. Satellite L20 Maintenance Manual(960-Q01) 137 2. Error information displayed on the screen can be manipulated with the following number keys: The 1 key scrolls the display to the next page. The 2 key scrolls the display to the previous page.
Test Program for Field. 138 Satellite L20 Maintenance Manual(960-Q01) 3.19 System Configuration Select 05 from the Diagnostics Menu and press Enter to display the following system configuration: SYSTEM CONFIGURATION : * - BIOS VER = VX.
Test Program for Field. Satellite L20 Maintenance Manual(960-Q01) 139 3.20 Running Test Edit Item 3.20.1 Function Description Function description lets you add or delete the subtests used to execute the Running Test. The following screen displays after pressing the Tab key to edit an item in the Running Test.
Test Program for Field. 140 Satellite L20 Maintenance Manual(960-Q01) 1. Enter a number or 0 for Loop Count and press Enter . Select a number from 1 to 65535 to define the num ber of times the Running Test executes. Select 0 to run the test continuously until halted by the user.
Test Program for Field. Satellite L20 Maintenance Manual(960-Q01) 141 3.21 Common Tests and Operation 3.21.1 How to operate a w indow To input parameters, or open a window use the following keys.
Test Program for Field. 142 Satellite L20 Maintenance Manual(960-Q01) Pass Count Displays the number of times the test has been executed. Error Count Displays the num ber of errors which have occurred during the test. Write Data Displays only the test data that has failed to compare during the test while being written during the test.
Test Program for Field. Satellite L20 Maintenance Manual(960-Q01) 143 3.21.4 Test Stop Display If an error occurs during a Subtest and YES is selected for Error Stop, the following message displays: * Select 1, 2, or 3 The three selections have the following functions: 1: Terminates the test program and exits to the subtest menu.
Satellite L20 Maintenance Manual(960-Q01 ) 4-i Chapter 4 Replacement Procedures.
Replacement Procedures 4-ii Satellite L20 Maintenan ce Manual( 960-Q01) 4.
Replacement Procedures Satellite L20 Ma intenance Manual(9 60-Q01) 4-iii Chapter 4 Contents 4.1 Overview ................................................................................................................... .144 Safety Precautions ......
Replacement Procedures 4-iv Satellite L20 Maintenan ce Manual( 960-Q01) Figures Figure 4-1 Removing the battery pack.................................................................................152 Figure 4-2 Removing a PC card.....................
Replacement Procedures 4 2 4.1 Overview This chapter describes the procedure for rem oving and replacing the fi eld replaceable units (FRUs) in the PC. It may not be necessary to remove all the F RUs in order to replace one. The chart below provides a guide as to whic h other FRUs must be removed before a particular FRU can be removed.
Replacement Procedures Satellite L20 Ma intenance Manual(9 60-Q01) 145 Safety Precautions Please read the following safety instructions before disassembling the computer and always follow the instructions w hile working on the computer. DANGER: 1. In the case of the battery, always use authentic parts or equivalent parts approved by Toshiba.
Replacement Procedures 146 Satellite L20 Maintenan ce Manua l(960-Q01) Before You Begin Take note of the following points before star ting work. Always remove the AC adapter and battery pack before commencing any of the procedures. The procedure for removing the battery pack is described in section “4.
Replacement Procedures Disassembly Procedure Three main types of cable connector are used. Pressure plate connector • • • Spring connector Normal pin connector When disconnecting a pressure plate connector, lift up the tag on one side of the plastic pressure plate on the connector and pull the cab le out from the connect or.
Replacement Procedures 148 Satellite L20 Maintenan ce Manua l(960-Q01) Assembly Procedure After the computer has been disassembled and th e part that caused the fault has been repaired or replaced, the computer must be reassem bled. Take note of the following general points when assembling the computer.
Replacement Procedures Screw Tightening Torque Use the following torque when tightening screws. CAUTION : Overtightening may damage screws or parts. Undertightening may allow screws to loosen (and possibly fall ou t) causing a short circuit or other damage.
Replacement Procedures 150 Satellite L20 Maintenan ce Manua l(960-Q01) Screw Notation To make maintenance of the co mputer easier, markings of the kinds of the screws including the types and lengths of the screws are indicated on the computer body.
Replacement Procedures Satellite L20 Ma intenance Manual(9 60-Q01) 151 4.2 Battery pack Removing the battery pack The following describes the procedure for re m oving the battery pack (See Figure 4-1). CAUTION: Take care not to short circuit the terminals when removing the battery pa ck.
Replacement Procedures Figure 4-1 Removing the battery pack NOTE : Dispose of the used battery pack in a ccordance with the laws and ordinances of your local authority. Installing the battery pack The following describes the procedure for inst alling the battery pack (See Figure 4-1).
Replacement Procedures 2. Disconnect the AC adapter and all ex ternal devices from the com puter. 3. Attach the battery cover to the battery pack . 4. Insert the battery pack 5.
Replacement Procedures 4.3 PC card Removing a PC card The following describes the procedure for removing a PC card (See Figure 4-2). CAUTION: Insert or remove a PC card in accordan ce with any instructions in a PC card manual or the manuals of the co mputer system you are using.
Replacement Procedures 2. Insert a PC card and press it until it is securely connected. Satellite L20 Ma intenance Manual(9 60-Q01) 155.
Replacement Procedures 156 Satellite L20 Maintenan ce Manua l(960-Q01) 4.4 HDD Removing a HDD The following describes the procedure fo r removing a HDD (See Figure 4-4 to 4-5). CAUTION: Take care not to press on the top or bottom of a HDD. Pressure may cause data loss or damage to the device.
Replacement Procedures CAUTION: When a HDD is installed, they are inst alled in the position as the following figure. HDD slot cove r M2.5x4.0B FLAT BIND Tow screw insert HDD HDD module CN 18 Figure 4.
Replacement Procedures 5. Remove the following screws securing the HDD holder and rem ove the HDD holder . • M3.0 × 4.0B FLAT BIND screw x4 HDD holder HDD M3.
Replacement Procedures Satellite L20 Ma intenance Manual(9 60-Q01) 159 Installing a HDD The following describes the procedure for installing a HDD (See Figure 4-4 to 4-5). 1. Install a HDD to the HDD holder and secure it with the fo llo wing screws . • M3.
Replacement Procedures 4.5 Wireless LAN card Removing a Wireless LAN card The following describes the procedure for re m oving a Wireless LAN card (See Figure 4-6). 1. Remove the following screw of wireless cover securing wireless LAN card cover and remove it.
Replacement Procedures Satellite L20 Ma intenance Manual(9 60-Q01) 161 Installing a Wireless LAN card The following describes the procedure for inst alling a Wireless LAN card (See Figure 4-7). 1. Insert a wireless LAN card terminals slantwise into the connector CN27 on the computer and press a wireless LAN car d until it is securely in place.
Replacement Procedures 162 Satellite L20 Maintenan ce Manua l(960-Q01) 4.6 Memory module CAUTION: The power of the computer must be turned off when you remove a memory module. Removing a memory module with the power on risks damaging the module or the computer itself.
Replacement Procedures Figure 4-6 Removing a memory module Satellite L20 Ma intenance Manual(9 60-Q01) 163.
Replacement Procedures Installing a memory module To install a memory module, confirm that the com puter is in boot mode. Then perform the following procedure (See Figure 4-8). 1. Insert a memory module into the connector of the com puter slantwise (term inal side first) and press it to connect firmly.
Replacement Procedures Satellite L20 Ma intenance Manual(9 60-Q01) 165 4.7 Keyboard Removing the keyboard The following describes the procedure for rem o ving the keyboard (See Figure 4-9 to 4-11). CAUTION: As the keycap may fall out, when handling the keyboard alw ays hold it by the frame and do not touch the keycap.
Replacement Procedures M2.5x6.0 M2,0X3.0 Figure 4-7 Removing screws for KBD cover/keyboard 166 Satellite L20 Maintenan ce Manua l(960-Q01).
Replacement Procedures KBD cover Keyboard Figure 4-8 Removing the keyboard/KBD cover Satellite L20 Ma intenance Manual(9 60-Q01) 167.
Replacement Procedures 168 Satellite L20 Maintenan ce Manua l(960-Q01) Installing the keyboard The following describes the procedure for inst alling the keyboard (See Figure 4-9 to 4-110). 1. Turn the keyboard upside down and place it on the palm rest as its face do wn.
Replacement Procedures 4.8 LED Board Removing the LED Board The following describes the procedure for rem oving the LED board (See Figure 4-12). 1. Remove the following screw securing the switch membrane. • M2.5 × 3.0B FLAT BIND screw x2 2. Push up the LED board to the arrow direction and remove it.
Replacement Procedures 170 Satellite L20 Maintenan ce Manua l(960-Q01) Installing the LED Board The following describes the procedure for inst alling the switch membrane (See Figure 4-12). 1. Press LED board in the computer. 2. Secure the LED board with the following screw .
Replacement Procedures Satellite L20 Ma intenance Manual(9 60-Q01) 171 4.9 Optical disk drive NOTE : Do not apply excessive force to the top of an optical disk drive. Do not touch the shaded portion of the fi gure below, when the drive is removed or installed.
Replacement Procedures Optical disk drive M2.5 x 6.0B FLAT BIND M2.5 x 6.0B FLAT BIND Figure 4-10 Removing an optical disk drive 172 Satellite L20 Maintenan ce Manua l(960-Q01).
Replacement Procedures ODD bracke t M2.0 × 3.0 Figure 4-11 Disassembling the ODD bracket Installing an opt ical disk drive The following describes the procedure for inst alling an optical disk drive (See Figure 4-13 and 4-14). 1. Attach the ODD bracket to an optical disk drive and secur e it with the following screws .
Replacement Procedures 174 Satellite L20 Maintenan ce Manua l(960-Q01) • M2.5 × 6.0B FLAT BIND screw x1.
Replacement Procedures 4 4.10 Display assembly Removing the display assembly The following describes the procedure for rem o ving the display assembly (See Figure 4-15 to 4-20). 1. Close the display and turn the computer upside down . 2. Remove the following screws from the k/b cover of the computer.
Replacement Procedures 3. Open the MINIPCI Door and remove the wireless LAN antenna connector . Figure 4-13 Removing the MINIPCI door and connetor (back) 4.
Replacement Procedures Figure 4-17 Removing the cables (back) 5. Pull out the wireless LAN antenna cables from the guide Wireless LAN antenna cable Figure 4-14 Removing the antenna cables (back) 6. Opening the display to 180 degree, and remove the hinge screw .
Replacement Procedures . . M2.5x6.0 FLAT BIND (Locktight) M2.5x6.0 FLAT BIND (Locktight) Figure 4-15 Removing the hinge screw (back) [ back ] 178 Satellite L20 Maintenan ce Manual(960-Q01 ).
Replacement Procedures 7. Remove the LCD harness from the connector on the system board and Pulling out the pole of hinge from the hole of hinge assembly, remove the display assembly from the base assembly.
Replacement Procedures 180 Satellite L20 Maintenan ce Manual(960-Q01 ) Installing the display assembly The following describes the procedure for instal ling the display assem bly (See Figure 4-15 to 4-20). 1. Inserting the pole of hin ge to the hole of hinge assembly, set the display assembly on the base assembly.
Replacement Procedures 4.11 Cover assembly Removing the cover assembly The following describes the procedure for removing the cover assembly (See Figure 4-21 to 4-24). 1. Turn over the computer. 2. Remove the following screws securing the cover assembly from the back and bottom of computer.
Replacement Procedures Figure 4-17 Removing the screws (back) 3. Disconnect the touch pad flat cable from the connector on the system board. 4. Removing the screw from power board and remove the power board .
Replacement Procedures M2.5x3.0 Power board Touch p ad flat cable Figure 4-18 Removing the sc rews & cables (front) Satellite L20 Ma intenance Manual(9 60-Q01) 183.
Replacement Procedures 5. Pull up and remove the cover assembly from the base assembly . Cover assembly Base assembly Figure 4-19 Removing the cover assembly 184 Satellite L20 Maintenan ce Manual(960-.
Replacement Procedures Satellite L20 Ma intenance Manual(9 60-Q01) 185 Installing the cover assembly The following describes the procedure for inst alling the cover assembly (See Figure 4-21 to 4-24). 1. Install the cover assembly to the base assem bly.
Replacement Procedures 4.12 Touch pad Removing the touch pad The following describes the procedure for removing the touch pad (See Figure 4-31). 1. Peel off the glass tape and disconnect the touch pad flat cable from the connector on the touch pad and peel the al foil .
Replacement Procedures Satellite L20 Ma intenance Manual(9 60-Q01) 187 Installing the touch pad The following describes the procedure for in stalling the touch pad (See F igure 4-31). 1. Peel off the separator covering on the sensor portion of a new touch pad.
Replacement Procedures 4 4.20 System board CAUTION: 1. When handling the system board, alwa ys hold by the edges. Do not touch the printed circuit face. 2. If replacing with a new system board, execute the subtest01 Initial configuration in section 3.
Replacement Procedures Satellite L20 Ma intenance Manual(9 60-Q01) 189 Installing the system board The following describes the procedure for inst alling the system board (See Figure 4-41). 1. Secure the system board with the following screws . • M2.
Replacement Procedures 4.21 CPU Removing the CPU The following describes the procedure for re m oving the CPU heat sink (See Figure 4-44). 1. Disconnect the Heat sink cable from the connector CN15 on the system board 2. Remove the following screws securing the heat sink holder along 1 to 7.
Replacement Procedures 4. Unlock the CPU by rotating the cam on the CPU socket 120 degrees to the counterclockwise with a flat-blade screwdriver. 5. Remove the CPU . Figure 4-23 Removing the CPU Installing the CPU&VGA heat sink The following describes the procedure for in stalling the CPU (See Figure 4-44to 4-46).
Replacement Procedures NOTE: Apply the silicon grease enough to cover the chip surface using the special applicator. Figure 4-24 Applying silicon grease 5. Install the CPU&VGA heat sink and heat sink holder and secure them with the following screws along 1 to 7.
Replacement Procedures LCD unit / FL inverter CAUTION: When replacing a LCD, it is required that SVP parameter is set. Update with the latest EC/KBC as describe d in Appendix H “EC/KBC Rewrite Procedures”.
Replacement Procedures 4. Pull out one insulator and peel off the other one adhered to the FL inverter. 5. Disconnect the LCD harnesses from the connectors CN1 on the FL inverter. 6. Disconnect the HV harnesses from the connectors CN2 on the FL inverter.
Replacement Procedures 8. Remove the following screws securing the LCD unit. • M2.5x4.0 BINK HEAD screw x6 9. With the bottom edge of the LCD unit on the display cover, lift onl y the top edge of the LCD unit. After peeling off the CONDUTIVE tape , disconnect the LCD harness from the connector on the back of the LCD.
Replacement Procedures 11. Remove the following screws securing the LCD support (LCD unit side) and remove the LCD supports from the LCD unit. • M2.0x3.
Replacement Procedures Satellite L20 Ma intenance Manual(9 60-Q01) 197 Installing the LCD unit/FL Inverter The following describes the procedure for inst alling the LCD unit and FL inverter (See Figure 4-52 to 4-55). 1. Install the LCD supports (LCD unit side) to the LCD and secure them with the following screws .
Satellite L20 Ma intenance Manual(9 60-Q01) App-i Appendices.
App-ii Satellite L20 Maintenance Manual(96 0 -Q 01).
Satellite L20 Ma intenance Manual(9 60-Q01) App-iii Appendix Contents Appendix A Handling the LCD Module ......................................................................... A-1 Appendix B Board Layout ............................................
App-iv Satellite L20 Maintenance Manual(96 0 -Q 01) C.19 J2 Memory connector 1 (200-PIN) ............................................................ C-13 C.20 CN19 USB I/F connector (4-PIN) ............................................................
Satellite L20 Ma intenance Manual(9 60-Q01) App-v E 18 Turkish (TR) Keyboard ................................................................................ E-9 E 19 Japanese (JP) Keyboard .............................................................
App-vi Satellite L20 Maintenance Manual(96 0 -Q 01) Appendix F Wiring Diagrams .......................................................................................... F-1 F.1 RGB Monitor ID Wraparound Connector .....................................
Satellite L20 Ma intenance Manual(9 60-Q01) A-1 Appendix A Appendix A Handling the LCD Module Precautions for handling the LCD module The LCD module can be easily damaged duri ng assembly or disassembly. Observe the following precautions when handling the LCD module: 1.
Handling the LCD Module 3. If the panel’s surface gets dirty, wipe it with co tton or a soft cloth. If it is still dirty, try breathing on the surface to create a light cond ensate and wipe it again. If the surface is very dirty, we recomme nd a CRT cleaning agent.
Handling the LCD Module 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 m odule, so guard against damage from electrostatic discharge.
Handling the LCD 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.
Handling the LCD Module 10. If you transport the module, do not use pack ing material that c ontains epoxy resin (amine) or silicon glue (alcohol or oxide).
Handling the LCD Module A-6 S atellite L20 Main tenance Manual(9 60-Q01).
Satellite L10 Maintenan ce Manual (960-Q01) B-1 Appendix B Appendix B Board Layout B.1 System Board Front View (a) (b) (c) (d) (e) (g) (f) Figure B-1 System board layout (front).
Board Layout B-2 S atellite L10 Main tenance Manual(9 60-Q01) Table B-1 System board ICs and connectors (front) Mark Number Nam e (a) CN1 LED Board Connector (b) CN2 LCD I/F Connector (c) CN3 Keyboard.
Board Layout B.2 System Board Back View (a) (b) (c) (d) (e) (f) (g) (h) (o) (i) (j) (k) (p) (q) (l) (m) (r) (n) (s) Figure B-2 System board layout (Back) Satellite L10 Maintenance Manua l(960-Q01) B-3.
Board Layout B-4 S atellite L10 Main tenance Manual(9 60-Q01) Table B-2 System board ICs and connectors (back) Mark Number Name (a) CN10 DC Po wer Jack (b) CN8 S-VIDEO OUT connector (c) CN11 USB Conne.
Board Layout B.3 LED board <Front layout> <Back layout> (a) Figure B-3 LED board layout Table B-3 LED board connectors Mark Number Name (a) CN1 LED Board Connector Satellite L10 Maintenanc.
Board Layout B.4 Modem board <Front layout> (a) <Back layout> (b) Figure B-4 Modem board layout Table B-4 Modem board connectors Mark Number Name (a) MJ2 Phone Signal Connector (b) CN1 Mod.
Board Layout <Front layout> <Back layout> (b) (a) Table B-5 Touch pad board connectors Mark Number Name (a) CN1 Lift key (b) CN2 Right key Satellite L10 Maintenance Manua l(960-Q01) B-7.
Satellite L10 Maintenan ce Manual(960-Q01) C-1 Appendix C Appendix C Pin Assignment System Board C.1 CN9 RJ11+RJ45 Connector (18-PIN) Table C-11 RJ11+RJ45 connector (18-PIN) PIN No.
Pin Assignment C-2 Satellite L10 Main tenance Manual C.3 CN1 LED Board Connector (14-PIN) Table C-3 LED Board connector (14-PIN) PIN No. Signal name I/O PIN No. Signal name I/O 1 GND - 2 GND - 3 GND - 4 GND - 5 BT4# I 6 NBSWON# I 7 BT3# I 8 NUMLED O 9 BT2# I 10 CAPSLED O 11 BT1# I 12 IDE_LED O 13 N.
Pin Assignment Satellite L10 Maintenan ce Manual C-3 C.4 CN2 LCD I/F Connector (40-PIN) Table C-43 LCD I/F connector (40-PIN) PIN No. Signal name I/O PIN No.
Pin Assignment C-4 Satellite L10 Main tenance Manual C.5 CN3 Keyboard I/F Connector (25-PIN) Table C-5 Keyboard I/F connector (25-PIN) PIN No. Signal name I/O PIN No.
Pin Assignment Satellite L10 Maintenan ce Manual C-5 C.7 CN5 PC Card I/F Connector (68-PIN) Table C-7 PC Card I/F connector (68-PIN) (1/2) PIN No. Signal name I/O PIN No.
Pin Assignment C-6 Satellite L10 Main tenance Manual Table C-7 PC card I/F connector (68-PIN) (2/2) PIN No. Signal name I/O PIN No. Signal name I/O 61 A_CC/BE3# I/O 62 A_CAUDIO O 63 A_CSTSCHG I/O 64 A_CAD28 I/O - 65 A_CAD30 I/O 66 A_CAD31 I/O - 67 A_CCD2# I/O 68 GND - C.
Pin Assignment Satellite L10 Maintenan ce Manual C-7 C.11 CN10 DC IN Connector (4-PIN) Table C-4 DC IN connector (4-PIN) PIN No. Signal name I/O PIN No. Signal name I/O 1 VA I 2 GND - 3 GND - 4 GND - C.12 CN11 USB I/F Connector (4-PIN) Table C-5 USB I/F connector (4-PIN) PIN No.
Pin Assignment C-8 Satellite L10 Main tenance Manual C.14 CN14 System Bat tery Connector (5-PIN) Table C-64 USB I/F connector (4-PIN) PIN No. Signal name I/O PIN No. Signal name I/O 1 GND - 2 MBDATA I/O 3 MBCLK O 4 TEMP_MBAT O 5 MBAT+ - C.15 CN15 CPU Fan Connector (3-PIN) Table C-75 CPU FAN connector (3-PIN) PIN No.
Pin Assignment Satellite L10 Maintenan ce Manual C-9 C.16 CN16 HDD I/F Connector (44-PIN) Table C-16 HDD I/F connector (44-PIN) PIN No. Signal name I/O PIN No. Signal name I/O 1 N.C. - 2 GN D - 3 +5V - 4 +5V - 5 GND - 6 HDLED# O 7 PDCS3# I 8 PDCS1# I 9 PDA2 I 10 PDA0 I 11 PDIAG I 12 PDA1 I 13 N.
Pin Assignment C-10 Satellite L10 Ma intenance Manual C.18 J1 Memory Connector 0 (200-PIN) Table C-18 Memory connect or 0 (200-PIN) (1/3) PIN No. Signal name I/O PIN No.
Pin Assignment Satellite L10 Maintenan ce Manual C-11 Table C-18 Memory connect or 0 (200-PIN) (2/3) PIN No. Signal name I/O PIN No. Signal name I/O 63 MDQ21 I/O 64 MDQ16 I/O 65 GND - 66 GND - 67 M_DM.
Pin Assignment C-12 Satellite L10 Ma intenance Manual Table C-18 Memory connect or 0 (200-PIN) (3/3) PIN No. Signal name I/O PIN No. Signal name I/O 135 MDQ27 I/O 136 MDQ26 I/O 137 MDQ31 I/O 138 GND -.
Pin Assignment Satellite L10 Maintenan ce Manual C-13 C.19 J2 Memory connector 1 (200-PIN) Table C-19 Memory connect or 1 (200-PIN) (1/3) PIN No. Signal name I/O PIN No.
Pin Assignment C-14 Satellite L10 Ma intenance Manual Table C-19 Memory connect or 1 (200-PIN) (2/3) PIN No. Signal name I/O PIN No. Signal name I/O 63 MDQ21 I/O 64 MDQ16 I/O 65 GND - 66 GND - 67 M_DM.
Pin Assignment Satellite L10 Maintenan ce Manual C-15 able C-19 Memory connect or 1 (200-PIN) (3/3) PIN No. Signal name I/O PIN No. Signal name I/O 135 MDQ27 I/O 136 MDQ26 I/O 137 MDQ31 I/O 138 GND - .
Pin Assignment C-16 Satellite L10 Ma intenance Manual C.20 CN19 USB I/F connector (4-PIN) Table C- 20 USB I/F connector (4-PIN) PIN No. Signal name I/O PIN No. Signal name I/O 1 USB2POWER I 2 BUSBP0- I/O 3 BUSBP0+ I/O 4 GND - C.21 CN20 External MIC Connector (8-PIN) Table C- 21 External MIC connector ( 8 -PIN) PIN No.
Pin Assignment Satellite L10 Maintenan ce Manual C-17 C.23 CN22 ODD I/F Connector (50-PIN) Table C- 23 O DD I/F connector (50-PIN) PIN No. Signal name I/O PIN No.
Pin Assignment C-18 Satellite L10 Ma intenance Manual C.24 CN24 Modem Board connector (10-PIN) Table C-24 Modem Board connector (10-PIN) PIN No. Signal name I/O PIN No.
Pin Assignment Satellite L10 Maintenan ce Manual C-19 C.25 CN25 MINI-PCI connector (124-PIN) Table C-25 MINI-PCI connector (124-PIN) (1/2) PIN No. Signal name I/O PIN No. Signal name I/O 1 N.C. - 2 N.C. - 3 N.C. - 4 N.C. - 5 N.C. - 6 N.C. - 7 N.C. - 8 N.
Pin Assignment C-20 Satellite L10 Ma intenance Manual Table C-25 MINI-PCI connector (124-PIN) (2/2) PIN No. Signal name I/O PIN No. Signal name I/O 63 +3V - 64 FRAME# I/O 65 CLKRUN# I/O 66 TRDY# I/O 6.
Pin Assignment Satellite L10 Maintenan ce Manual C-21 LED Board C.26 CN1 LED Board connector (14-PIN) Table C-26 LED Board connector (14-PIN) PIN No. Signal name I/O PIN No. Signal name I/O 1 GND - 2 GND - 3 GND - 4 GND - 5 BT4# I 6 NBSWON# I 7 BT3# I 8 NUMLED O 9 BT2# I 10 CAPSLED O 11 BT1# I 12 IDE_LED O 13 N.
Pin Assignment C-22 Satellite L10 Ma intenance Manual Modem Board C.27 CN1 Modem Signal connector (10-PIN) Table C-27 Modem Signal connector (10-PIN) PIN No. Signal name I/O PIN No. Signal name I/O 1 PWRCLKN O 2 GND - 3 PWRCLKP O 4 GND - 5 N.C. - 6 GND - 7 DIB_DATAP I/O 8 GND - 9 DIB_DATAN I/O 10 GND - C.
Satellite L20 Maintenan ce Manual(960-Q01) D-1 Appendix. D Appendix D Display Codes D.1 Display Codes Table D-1 Scan codes (set 1 and set 2) (1/4) Code set 1 Code set 2 Cap No.
Display codes D-2 Satellite L20 Maintenance Manua l(9 60-Q01)) Table D-1 Scan codes (set 1 and set 2) (2/4) Code set 1 Code set 2 Cap No. Ke ytop Make Break Make Break Note 29 | 2B AB 5D F0 5D *5 30 .
Display codes Satellite L20 Maintenan ce Manual(960-Q01) D-3 Table D-1 Scan codes (set 1 and set 2) (3/4) Code set 1 Code set 2 Cap No. Ke ytop Make Break Make Bre ak Note 58 Ctrl 1D 9D 14 F0 14 *3 60.
Display codes D-4 Satellite L20 Maintenance Manua l(9 60-Q01)) Table D-1 Scan codes (set 1 and set 2) (4/4) Code set 1 Code set 2 Cap No. Ke ytop Make Break Make Bre ak Note 122 F11 57 D7 78 F0 78 *3 .
Display codes Satellite L20 Maintenan ce Manual(960-Q01) D-5 Table D-2 Scan codes with left Shift key Code set 1 Code set 2 Cap No. Key top Make Break Make Break 55 / E0 AA E0 35 E0 B5 E0 2A E0 F0 12 .
Display codes D-6 Satellite L20 Maintenance Manua l(9 60-Q01)) Table D-3 Scan codes in Numlock mode Code set 1 Code set 2 Cap No. Key top Make Break Make Break 75 INS E0 2A E0 52 E0 D2 E0 AA E0 12 E0 .
Display codes Satellite L20 Maintenan ce Manual(960-Q01) D-7 Table D-5 Scan codes in overlay mode Code set 1 Code set 2 Cap No. Keytop Make Break Make Break 09 8 (8) 48 C8 75 F0 75 10 9 (9) 49 C9 7D F.
Display codes D-8 Satellite L20 Maintenance Manua l(9 60-Q01)) Table D-7 No.126 key scan code Code set 1 Code set 2 Key top Shift Make Make Pause Co m mo n * E1 1D 45 E1 9D C5 E1 14 77 E1 F0 14 F0 77 Ctrl* E0 46 E0 C6 E0 7E E0 F0 7E *: This key generates only make codes.
Satellite L20 Maintenan ce Manual (960-Q01) E-1 Appendix E K ey Layout Appendix E Keyboard Layout E.1 United States (US) Keyboard Figure E-1 US Keyboard layout E.
Keyboard Layout E.3 Arabia (AR) Keyboard Figure E-3 AR Keyboard layout E.4 Belgium (BB) Keyboard Figure E-4 BB Keyboard layout E-2 S atellite L20 Main tenance Manual(9 60-Q01).
Keyboard Layout Appendices E.5 Czech (CZ) Keyboard FigureE-5 CZ Keyboard layout E.6 German (GR) Keyboard Figure E-6 GR Keyboard layout Satellite L20 Main tenance Manual (960-Q01) E-3.
Keyboard Layout E.7 Danish (DK) Keyboard Figure E-7 DK Keyboard layout E.8 Spanish (SP) Ke yboard Figure E-8 SP Keyboard layout E-4 S atellite L20 Main tenance Manual(9 60-Q01).
Keyboard Layout Appendices E.9 French (FR) Keyboard Figure E-9 FR Keyboard layout E.10 Hungary(HU) Keyboard Figure E-10 HUR Keyboard layout Satellite L20 Main tenance Manual (960-Q01) E-5.
Keyboard Layout E.11 Italian (IT) Keyboard Figure E-11 IT Keyboard layout E.12 Korean (KR) Keyboard Figure E-12 KR Keyboard layout E-6 S atellite L20 Main tenance Manual(9 60-Q01).
Keyboard Layout Appendices E.13 Norwegian (NO) Keyboard Figure E-13 NO Keyboard layout E.14 Portuguese (PT) Keyboard Figure E-14 PT Keyboard layout Satellite L20 Main tenance Manual (960-Q01) E-7.
Keyboard Layout E.15 Traditional Chinese (TC) Keyboard Figure E-15 TC Keyboard layout E.16 Swedish (SW) Keyboard Figure E-16 SW Keyboard layout E-8 S atellite L20 Main tenance Manual(9 60-Q01).
Keyboard Layout Appendices E.17 Russian (RU) Keyboard Figure E-17 RU Keyboard layout E.18 Turkish (TR) Keyboard Figure E-18 TR Keyboard layout Satellite L20 Main tenance Manual (960-Q01) E-9.
Keyboard Layout E.19 Japanese (JP) Keyboard Figure E-19 JP Keyboard layout E.20 Swiss-German(SL) Keyboard Figure E-20 SL Keyboard layout E-10 S atellite L20 Main tenance Manual(9 60-Q01).
Satellite L20 Maintenan ce Manual (960-Q01) F-1 Appendix F Appendix F Wiring Diagrams F.1 RGB Monitor ID Wraparound connector (1) RED (2) GREEN (3) BLUE (4) NC (5) GND (6) GND (7) GND (8) GND (9) 5V (.
Wiring Diagrams F-2 Satellite L20 Maintenance Manua(960-Q01).
Satellite L20 Maintenance Manual(960-Q01) G-1 Appendix G Appendix G BIOS Rewrite Procedures This Appendix explains how to rewrite the system BIOS program when you update the system BIOS. Tools To rewrite the BIOS, you need the following tool: BIOS/EC/KBC rewriting disk USB doggle Rewriting the BIOS 1.
Satellite L20 Maintenance Manual(960-Q01) H-1 Appendix H Appendix H EC/KBC Rewrite Procedures Same as BIOS rewrite Procedures, please refer appendix G.
An important point after buying a device Toshiba L20 (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Toshiba L20 yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Toshiba L20 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Toshiba L20 you will learn all the available features of the product, as well as information on its operation. The information that you get Toshiba L20 will certainly help you make a decision on the purchase.
If you already are a holder of Toshiba L20, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Toshiba L20.
However, one of the most important roles played by the user manual is to help in solving problems with Toshiba L20. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Toshiba L20 along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
