Toshiba Personal Computer TECRA A3/S2 Maintenance Manual TOSHIBA CORPORATION
Copyright © 2004 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 Tecra A3/S2 Maintenance Manual First edition December 2004 Disclaimer The information presented in this manual has been reviewed and validated for accuracy.
WARNING: ...... “Warning” indicates the existence of a hazard that could result in bodily injury if the safety instruction is not observed. CAUTION: ... “Caution” indicates the existence of a hazard that could result in property damage if the safety instruction is not observed. NOTE: ...........“Note” contains general information that relates to your safe maintenance service. Improper repair of the computer may result in safety hazards.
The manual is divided into the following parts: Chapter 1 ................................................................................................................................ Hardware Overview describes the Tecra A3/S2 Series system unit and each FRU. Chapter 2 ................................................................................................................................ Troubleshooting Procedures explains how to diagnose and resolve FRU problems. Chapter 3 .....................
Conventions This manual uses the following forma ts 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.
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 ............................................................................................................... 3.2 Executing the Diagnostic Test ............................................................................................... 3.3 Config Check Test ................................................................................................................. 3.4 DMI Check Test...................................................
Chapter 4 Replacement Procedures General............................................................................................................................. 4-1 4.2 Battery.............................................................................................................................. 4-7 4.3 PC Card............................................................................................................................ 4-8 4.4 HDD..............................................
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
1 Hardware Overview 1-ii Tecra A3/S2 Series Maintenance Manual
1 Hardware Overview Chapter 1 Contents 1.1 Features ......................................................................................................................1-5 1.2 System Unit..............................................................................................................1-10 1.3 2.5-inch Hard Disk Drive.........................................................................................1-14 1.4 Removable Drives........................................................
1 Hardware Overview 1-iv Tecra A3/S2 Series Maintenance Manual
1.2 System Unit 1.1 1 Hardware Overview Features The TECRA A3/S2 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 Celeron M CPU up to 1.5GHZ 0.09u, 1M L2, FSB 400MHz Intel Pentium M CPU up to 2.13GHz 0.
1 Hardware Overview 1.2 System Unit ? BIOS ? 1MB Flash ROM for system BIOS. a) Suspend to RAM/Disk. b) Password protection (System). c) Various hot key for system control. d) Refreshable e) ACPI compliant BIOS ? Power ? ? ? ? ? ? HDD ? ? ? ? 12-cell Li-Ion smart battery pack with 10.8V*8600mAh capacity or 6-cell Li-Ion smart battery pack with 10.8V*4300mAh capacity (depending on the models). Approximately 12 hours or longer charge time to 100% battery capacity with the system on.
1.2 System Unit 1 Hardware Overview ? Keyboard An easy-to-use 87-key keyboard provides a numeric keypad overlay for fast numeric data entry or for cursor and page control. It supports software that uses a 101- or 102-key enhanced keyboard. Includes one Windows® key and one Application key. ? TouchPad This pointing control device, located in the center of the keyboard palm-rest, provides convenient control of the cursor without requiring desk space for a mouse. The TouchPad incorporates two mouse buttons.
1 Hardware Overview 1.2 System Unit ? PCMCIA Card Organization ? Accommodate one type II device for TECRA A3 or two type II devices/one type III device for TECRA S2. ? SRAM, OTPROM, FLASH ROM, mask ROM memory card up to 64MB ? MODEM/LAN card ? Card bus card ? ACPI 1.0 Compliant ? Full ACPI 1.
1.2 System Unit 1 Hardware Overview ? TV-out port Plug a 4-pins S- video cable into this connector for output of NTSC or PAL TV standard, supporting Macrovision copy protection. ? LAN port The computer comes with an RJ-45 Local Area Network (LAN) port. The LAN port provides connectivity for LAN. ? Switch buttons ? Power button ? TOSHIBA Assist Button You can associate an application to this button for automatic launch.
1 Hardware Overview 1.2 1.2 System Unit System Unit The system unit is composed of the following major components: ? Processor ? Intel Celeron M CPU up to 1.5GHz 0.09u, 1M L2, FSB 400MHz ? Intel Pentium M CPU up to 2.13GHz 0.09u, 2M L2, FSB 533MHz ? Micro FC-PGA package CPU ? System Logic ? Intel 915PM (Alviso-PM)/ Intel 915GM (Alviso-GM) (400/533 MHz FSB supported) ? ICH6-M ? ENE KB910 for Keyboard Controller, Battery management Unit, and RTC. ? TI PCI7411 for Card Bus PCMCIA, 1394, 5 in 1 controller.
1.2 System Unit ? ? ? ? 1 Hardware Overview High Speed 16C550A Compatible UARTs with Send/Receive 16-Byte FIFO Supports 230k and 460k Baud Programmable Baud Rate Generator Modem Control Circuitry Infrared Communications Controller ? IrDA v1.
1 Hardware Overview ? ? 1.2 System Unit HRTF 3D positional audio. 3D Stereo Enhancement. TI PCI7411 Card Bus Host Adapter ? 3.3V operation with 5V Tolerance ? The PCI7411 controller is availble in the 288-terminal MicroStar BGA package(GHK). ? Compliant with ? PCI Local Bus Specification, Revision 2.3. ? PCI Bus Power Management Interface Specification Revision 1.1 ? Windows Logo Program 2.0 compliant. ? Intel Mobile Power Guideline 2000.
1.2 System Unit 1 Hardware Overview Marvell 88E8053 for Giga LAN ? PCI Express base specification 1.0a compliant ? x1 PCI Express interface with 2.5 GHz signaling ? Advanced error reporting ? Message signaled interrupts ? Configurable 48 KB deep buffer ? On-chip VLAN insertion and removal ? TCP, IP, UDP Checksum offload ? Compliant to 802.3x flow control support ? 10/100/1000 IEEE 802.
1 Hardware Overview 1.3 1.3 2.5-inch Hard Disk Drive 2.5-inch Hard Disk Drive The internal HDD is a random access non-volatile storage device. It has a non-removable 2.5inch magnetic disk and mini-Winchester type magnetic heads. The computer supports a 30/ 40/ 60/ 80/ 100/ 120GB HDD.
1.4 Removable Drives 1.4 1 Hardware Overview Optical Devices module The module comp artment s can accommodate the following removable modules: ? DVD-ROM drive ? CD-RW/DVD-ROM drive ? DVD±R/±RW drive ? DVD Super Multi drive ? CD-ROM driver 1.4.1 DVD-ROM Drive The DVD-ROM drive (Toshiba SD-C2712) accommodates either 12cm (4.72- inch) or 8cm (3.15-inch) CDs or DVDs.
1 Hardware Overview 1.4 Removable Drives Supported formats CD: CD-Audio CD-ROM (mode 1 and mode 2) CD-ROM XA (mode 2, form 1 and form 2) CD-I Bridge CD-I (mode 2, form 1 and form 2) CD-TEXT Video CD CD-RW Photo CD CD-R 1.4.3 CD-RW/DVD-ROM Drive The CD-RW/DVD-ROM combo drive (Toshiba TS-L462A, Matsushita UJDA760 or TEAC DW-224E) is capable of driving either 12cm (4.72-inch) or 8cm (3.15- inch) DVDs and CDs without using an adaptor.
1.5 Power Supply 1 Hardware Overview 1.4.4 DVD±R/±RW Drive The DVD±R/±RW drive (Pioneer DVR-K15) is capable of driving either 12cm (4.72- inch) or 8cm (3.15- inch) DVDs and CDs without using an adaptor.
1 Hardware Overview DVD-RAM 1.5 Power Supply Standard rotational speed Write speeds CD-R CD-RW DVD-R DVD-RW DVD+R DVD+RW DVD-RAM DVD+R DL Maximum 24 times faster rotational speed Maximum 10 times(High/Ultra Speed) faster rotational speed Maximum 8 times faster rotational speed Maximum 4 times faster rotational speed Maximum 8 times faster rotational speed Maximum 4 times faster rotational speed Maximum 3 times faster rotational speed Maximum 2.
1.5 Power Supply 1.5 1 Hardware Overview 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 8-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 Hardware Overview 1.5 Power Supply 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. ? ? ? ? LB10M= The system will be driven by the battery for 12 more minutes.
1.6 Batteries 1.6 1 Hardware Overview 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 Main battery Material Lithium-Ion Output voltage Capacity 14.8 V 6450mAH/ 4300mAH RTC battery Lithium 3V 14 mAH/15 mAH 1.6.
1 Hardware Overview 1.6 Batteries 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.
Chapter 2 Troubleshooting Procedures 2
2 Troubleshooting Procedures 2-ii Tecra A3/S2 Series Maintenance Manual
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. USB Floppy Drive 7. TouchPad 12. IEEE 1394 port 3. Keyboard 8. Speaker 13. Wireless LAN system 4. USB ports 9. Optical drive 5. TV-out port 10.
2 Troubleshooting Procedures 2.2 2.3 Power Supply Troubleshooting 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.
2.3 Power Supply Troubleshooting 2 Troubleshooting Procedures START Connect the AC adapter to the DC-IN socket Is the DC-IN LED on? No Perform the Power Supply Troubleshooting procedures in section 2.3 No Perform the Power Supply Troubleshooting procedures in section 2.3 No Perform the Power Supply Troubleshooting procedures in section 2.
2 Troubleshooting Procedures 2.3 Power Supply Troubleshooting 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.
2.3 Power Supply Troubleshooting 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 2.3 Power Supply Troubleshooting 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 Troub leshooting procedures in Section 2.6. 2. If an error is detected when using the TV-out connection, perform the TV-Out Failure Troubleshooting procedures in Section 2.7. 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 Perform external display check (Procedure 1) Does the external display function ok? No Perform diagnostic check (Procedure 2) Yes Was a display problem detected? No Display is not faulty. Continue troubleshootingrefer to Figure 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 Keyboard Troubleshooting 2.5 2 Troubleshooting Procedures Keyboard Troubleshooting START Perform external keyboard check (Procedure 1) Does the external keyboard function ok? Yes Perform diagnostic check (Procedure 2) No Was a keyboard problem detected? No Keyboard is not faulty. Continue troubleshootingrefer to Figure 2.
2 Troubleshooting Procedures 2.5 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.
2.6 External USB Devices Troubleshooting 2.
2 Troubleshooting Procedures 2.6 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.
2.7 TV-Out Failure Troubleshooting 2.
2 Troubleshooting Procedures 2.7 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.
2.8 Printer Port Troubleshooting 2.8 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 2.8 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.
2.9 Touch Pad Troubleshooting 2.
2 Troubleshooting Procedures 2.9 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.
2.9 Touch Pad Troubleshooting 2 Troubleshooting Procedures 2.10 Speaker Troubleshooting START Perform audio source test (Procedure 1) Do all sources have same problem? No Speakers are not faulty.
2 Troubleshooting Procedures 2.9 TouchPad 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.
2.9 Touch Pad Troubleshooting 2 Troubleshooting Procedures 2.
2 Troubleshooting Procedures 2.9 TouchPad Troubleshooting 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.
2.9 Touch Pad Troubleshooting 2 Troubleshooting Procedures 2.12 PCMCIA Troubleshooting START Perform SYCARD test (Procedure 1) Do errors occur during SYCARD test? No PCMCIA unit is not faulty.
2 Troubleshooting Procedures 2.9 TouchPad Troubleshooting 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.
2.9 Touch Pad Troubleshooting 2 Troubleshooting Procedures 2.13 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 Troubleshooting Procedures 2.9 TouchPad Troubleshooting 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.
2.9 Touch Pad Troubleshooting Check 4 2 Troubleshooting Procedures The system board may be damaged. Replace it with a new one following the instructions in Chapter 4.
2 Troubleshooting Procedures 2.10 Speaker Troubleshooting 2.14 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.
2.10 Speaker 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 2-36 2.
Chapter 3 Tests and Diagnostics 3
3.
Test and Diagnostic Operation Contents 3.1 The Diagnostic Test............................................................................................................ 3-1 3.2 Executing the Diagnostic Test ............................................................................................. 3-3 3.3 Config Check Test............................................................................................................. 3-7 3.4 DMI Check Test............................................
3.
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.
3.2 Executing the Diagnostic Test 3.2 3. Tests and Diagnostics 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. Tests and Diagnostics 3.
3.2 Executing the Diagnostic Test 3. Tests and Diagnostics 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.
3. Tests and Diagnostics 3.2 Executing the Diagnostic Test It will skip this process if “N” key pressed. 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.
3.3 Parallel Port Test 3.3 3 Tests and Diagnostics 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. Tests and Diagnostics 3.4 3.4 DMI Check Test 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”.
3.5 PIO Loopback Test 3.5 3. Tests and Diagnostics 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. Tests and Diagnostics 3-10 3.
3.7 Speaker Audio Test 3.6 3. Tests and Diagnostics 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. Tests and Diagnostics 3.7 3.8 Fan ON/OFF Test 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.
3.9 Main Battery Change Test 3.8 3. Tests and Diagnostics Main Battery Charge Test NOTE: The AC adaptor (120W/90W, 19V) should be connected to successfully run this test.
3 Tests and Diagnostics 3.9 3.10 FDD Test 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.
3.10 FDD Test Tecra A3/S2 Series Maintenance Manual 3.
3. Tests and Diagnostics 3.11 CD-ROM Test 3.10 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 3.11 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 3-18 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 3.12 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 After checking T/Pad buttons and cursor’s function, use “Tab” key or use T/Pad cursor to click the “OK” column will end this test. It will indicate whether the subtests pass or fail after three questions. 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 3.13 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 3.14 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 3.15 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 3.16 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: ? ASIC register Check: ? MAC register check: ? .PHY register check: ? .PHY IRQ(PCI) check: ? Check buffer RAM over register access: ? Test Rate Control . The LAN test includes three subtests of the: 1. Speed1000 - 2.
3.17 LAN Test 3.
3. Tests and Diagnostics 3-28 3.
3.17 LAN Test Tecra A3/S2 Series Maintenance Manual 3.
3. Tests and Diagnostics 3.19 CD Control Button Test 3.17 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.
Chapter 4 Replacement Procedures 4
4 Replacement Procedures 4-ii Tecra A3/S2 Series Maintenance Manual
4 Replacement Procedures Chapter 4 Contents General.............................................................................................................................. 4-1 4.2 Battery............................................................................................................................... 4-7 4.3 PC Card............................................................................................................................ 4-8 4.4 HDD ...............................
4 Replacement Procedures Figures Figure 4-1 Removing the battery pack ......................................................................................4-7 Figure 4-2 Removing a PC card ...............................................................................................4-8 Figure 4-3 Installing a PC card .................................................................................................4-9 Figure 4-4 HDD....................................................................
4 Replacement Procedures Figure 4-27 Removing the touch pad board.............................................................................. 4-31 Figure 4-28 Removing the speakers ......................................................................................... 4-32 Figure 4-29 Removing the LAN board..................................................................................... 4-33 Figure 4-30 Removing the USB board ..................................................................
4 Replacement Procedures 4.1 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 The example below shows FRUs to be removed before the Direct Play button board can be removed and repaired or replaced. The Direct Play button board is overlapped by the top cover which must be removed before the Direct Play button board can be reached. The removable HDD, keyboard, wireless LAN, ODD, modem, and display assembly in turn overlap the top cover. Always starts the disassembly process by removing the battery pack.
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 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 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 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 Replacement Procedures 4.2 Battery Removing the Battery Pack To remove the battery pack from the battery bay, follow the steps below. 1. Turn the computer upside down. 2. Disengage the battery pack lock (1). 3. Release the battery pack release latch (2). 4. Remove the battery pack from the bay (3). Figure 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 Installing the Battery Pack To install the battery pack in the battery 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 battery bay. The battery bay latch will click automatically. 2.
4 Replacement Procedures Figure 4-2 Tecra A3/S2 Series Maintenance Manual Removing a PC Card 4-9
4 Replacement Procedures Installing a PC Card To install a PC Card, follow the steps below and refer to the figures in the preceding section. 1. Make sure the eject button does not stick out. 2. Insert a PC Card and press gently to ensure a firm connection. Figure 4-3 4.4 Installing a PC Card HDD NOTE: When handling the HDD, do not press the top surface as shown by the arrow. Hold it by the sides.
4 Replacement Procedures Removing the HDD Module Follow the steps below to remove HDD module: 1. Turn the computer upside down 2. Remove two black M2.5x5 screws to release the HDD door. 3. Pull on the tab to remove the HDD module. 4. Remove the HDD module from the HDD case.
4 Replacement Procedures Figure 4-6 Removing the HDD module Installing the HDD Module To install the HDD module, follow the steps below and refer to the figures in the preceding section. 1. Insert the HDD module into the HDD slot. 2. Secure the HDD door with two black M2.5x5 screws. Disassembling the HDD Module To take apart the HDD, first remove it from the computer as described earlier. 1. Remove four M3x3 screws securing the HDD mounting brackets to the HDD. There are two on each side.
4 Replacement Procedures Figure 4-7 4.5 Removing the HDD bracket Optical Drive Module Removing the Optical Drive Module To remove the optical drive module, you need to remove the HDD module first. Follow the steps below: 1. Turn the computer upside down. 2. Remove one M2.5x3 screw securing the optical drive module into place. 3. Slide the Slim Select Bay latch to unlock position. 4. Grasp the optical drive module and slide it out.
4 Replacement Procedures Figure 4-8 Removing the optical drive module Installing the Optical Drive Module To install a device in the optical drive module bay, follow the steps below and refer to the figure in the preceding section. 1. Slide the device into the optical drive module bay. 2. Use one M2.5x3 screw to secure it in position. 3. Slide the Slim Select Bay latch to lock position.
4 Replacement Procedures 4.6 Optical Drive This computer may be fitted with a: CD-RW/DVD-ROM device DVD+-R/+-RW DVD Super Multi device Disassembling the Optical Drive To disassemble the optical drive, then follow the steps below. 1. Remove one M2.5x3 screw and slide the optical drive module from the bay. 2. Remove two M2.5x8 screws from bracket plate and five M2.5x3 screws from Base case.
4 Replacement Procedures 4.6 Optical Drive Reassembling the Optical Drive To reassemble an optical drive, follow the steps below and refer to the figure in the preceding section. 1. Position the optical drive bracket plate to the rear panel of optical drive. 2. Secure the optical drive bracket plate with two black M2.5? 8 screws. 3. Secure the Base case with five M2.5x3 screws. 4. Install the optical drive module into the bay and secure with one M2.5x3 screw.
4 Replacement Procedures 4.7 Wireless LAN Removing the Wireless LAN 1. Turn the computer upside down and loosen the embedded M2.5x5 screw securing the wireless LAN compartment cover. Figure 4-10 Removing the wireless LAN cover 2. Lift off the wireless LAN compartment cover. 3. Remove the embedded one M2.5x3.6 screw securing the Mini PCI bracket. Note: If your wireless LAN unit is an ‘A’ type card, then the screw will be a safety screw. 4. Detach the two ends of the wireless LAN antenna. 5.
4 Replacement Procedures Figure 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. Installing the Wireless LAN 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 the embedded M2.5x5 screw securing the wireless LAN compartment cover. 2. Lift off the wireless LAN compartment cover. 3.
4 Replacement Procedures 5. Attach the ends of the wireless LAN antenna. Connect the antenna cables (a black one and a white one) to LAN card’s connector. 6. Use one M2.5x3.6 screw to secure the Mini PCI bracket. Note: If your wireless LAN unit is an ‘A’ type card, then the screw will be a safety screw. 7. 4.8 Seat the wireless LAN compartment cover and secure it with the embedded security screw.
4 Replacement Procedures 7. Replace the battery pack. Figure 4-13 Removing a memory module CAUTION: Do not touch the connectors on the expansion memory or on the computer. Debris on the connectors may cause memory access problems.
4 Replacement Procedures Installing an Expansion Memory Module CAUTION: Do not touch the connectors on the expansion memory or on the computer. Debris on the connectors may cause memory access problems. Follow these steps to install a memory module: 1. Set the computer to boot mode and turn off the power. 2. Remove all cables connected to the computer. 3. Turn the computer upside down and remove the battery. Loosen the embedded M2.5x5 screw securing the memory module socket cover.
4 Replacement Procedures Figure 4-15 4-22 Installing an expansion memory Tecra A3/S2 Series Maintenance Manual
4 Replacement Procedures 4.9 Keyboard Removing the Keyboard Follow the steps below to remove the keyboard: 1. Open the display panel. 2. Remove the strip cover by forcing one end of the strip cover up. Figure 4-16 Removing the strip cover 3. Remove two black M2.5? 3 screws securing the keyboard.
4 Replacement Procedures Figure 4-17 Removing the keyboard 4. After removing the screws, flip the keyboard latch with either a screwdriver or a fingernail. 5. Lift the keyboard out of its bay, revealing the keyboard cable. 6. Disconnect the keyboard cable and remove the keyboard from the computer entirely.
4 Replacement Procedures Figure 4-18 Disconnecting the keyboard cable 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 black M2.5x3 screws. 3. Engage the flip latch with either a screwdriver or a fingernail. 4. Set the strip cover and press down to secure the strip cover latches engage.
4 Replacement Procedures 4.10 Bluetooth Removing the Bluetooth To remove a Bluetooth unit, follow the steps below. 1. Detach a FFC cable from motherboard. 2. Remove two black M2x3 screws. 3. Grasp the Bluetooth unit and remove it. Figure 4-19 Removing the Bluetooth Installing the Bluetooth To install a Bluetooth unit, follow the steps below and refer to the figures in the preceding section. 1. Seat the Bluetooth module securing with two black M2x3 screws. 2. Connect the FFC cable to motherboard.
4 Replacement Procedures 4.11 Modem Removing the Modem To remove the installed modem, follow the steps below: 1. 2. 3. 4. Remove the Modem cover.(Refer Figure 4-12) Remove two black M2.5x3 screws securing the modem module. Carefully lift the unit off its connector Disconnect the modem cable from the modem module.
4 Replacement Procedures Installing the Modem To install a modem, follow the steps below and refer to the figures in the preceding section. 1. Connect the modem cable to the modem module. 2. Fit the modem into its connector and secure it with two black M2.5x3 screws. 3. Sheet the modem cover and secure with one M2.5x 5 screw. 4.12 Display Assembly Removing the Display Assembly To remove the display assembly, first remove the keyboard and wireless LAN, then follow the steps below: 1. Remove two black M2.
4 Replacement Procedures Figure 4-22 7. Removing the wireless and LCD cables Lift the display assembly from the computer’s chassis. 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 cable or wireless cable. 2. Secure two M2.5x8 black screws to LCD hinge. 3. Connect the LCD cable to the top chassis. 4.
4 Replacement Procedures 4.13 Top Cover Removing the Top Cover To remove the top covers, first remove the battery pack, display assembly, optical drive module, HDD, memory module and wireless LAN as described in the preceding sections, then follow the steps below: 1. Remove seven black M2.5x8 and seven black M2.5x5 securing from bottom.
4 Replacement Procedures 2. Remove two black M2.5x5 and four black M2.5x14 screws securing the top half of the cover: Figure 4-24 Removing the top cover 3. Detach the Switch board FFC, Bluetooth FFC and Touch Pad FFC cables.
4 Replacement Procedures 4. Detach Speaker cable. Figure 4-26 Removing Speaker cables 5. Remove the top cover. 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 Switch board FFC, Bluetooth FFC and Touch Pad FFC cables. 2. Connect Speaker cable. 3. Secure the top cover with two black M2.5x5 and four black M2.5x14 screws. 4. Secure the seven black M2.5x8 and seven black M2.
4 Replacement Procedures 4.14 Touch Pad Removing the Touch Pad To remove the Touch Pad, first remove the top cover, then follow the steps below: 1. Remove two black M2.5x3 screws securing Touch Pad board FFC cable. 2. Remove FFC cable. 3. Remove one black M2.5x3 screw securing Touch Pad’s frame. 4. Push the Touch Pad’s frame forward and remove the Touch Pad bracket.
4 Replacement Procedures 4.15 Speakers Removing the Speakers To remove the speakers, first remove the top cover, then follow the steps below: Figure 4-28 Removing the speakers 1. Remove two black M2.5x3 screws securing each speaker into place. 2. Lift out the 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.
4 Replacement Procedures 4.16 System Board Removing the LAN Board Follow the steps below to remove the LAN board. 1. Detach the LAN cable from motherboard. 2. Remove one M2.5x3 screw securing the LAN board. 3. Remove Modem cable. 4. Remove the LAN board.
4 Replacement Procedures Installing the LAN Board Follow the step below to install the LAN board. 1. Secure the LAN board with one M2.5x3 screw. 2. Attach LAN cable. 3. Attach Modem Cable Removing the USB Board Follow the steps below to remove the USB board. 1. Detach the USB cable from motherboard. 2. Remove the USB board.
4 Replacement Procedures Installing the USB Board Follow the step below to install the USB board. 1. Connect the USB cable to the connector on motherboard. Removing the System Board To remove the system board, first remove the LCD display assembly and the top cover, then follow the steps below: 1. Remove two 4.75 x 9.6 NI hexagonal screws securing the system board to the printer port. Figure 4-31 Removing the system board 2. Remove two 4.75 x 9.
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 in the chassis 2. Connect Fan to the Fan connector, and then secure it with three screws. 3. Secure the system board to the CRT port with two 4.75x 9.6 NI hexagonal screws. 4. Secure the system board to the printer port with two 4.75x 9.6 NI hexagonal screws. 4.
4 Replacement Procedures Installing the Direct Play Button Board To install the Direct Play Button board, follow the steps below and refer to the figures in the preceding section. 1. Secure two M2.5x 3 screws and FFC from top cover. 4.
4 Replacement Procedures Figure 4-33 Removing the fan module 4. Remove the four embedded screws securing the heat sink in the order indicated on the heat sink. Lift out the heat sink while preventing stress to the CPU below. Figure 4-34 Removing the heat sink 5. 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. Figure 4-35 Removing the CPU 6. Gently lift out the CPU.
4 Replacement Procedures Installing the CPU To install the CPU, follow the steps below and refer to the figures in the preceding section. CAUTION: Reapply fresh grease with the grease tool before installing the heat sink. 1. Make sure that the notch on the cam is aligned with the open position. 4. Seat the CPU to align the triangle mark on the CPU with the one on the CPU socket. Make sure the alignment is exact to avoid damaging pins on the CPU. 5.
4 Replacement Procedures 4.19 Display Mask Removing the Display Mask To remove the display mask, first remove the display assembly as described earlier, then follow the steps below: 1. Remove two black M2.5x5 screws on the upper corner. 2. Remove the mask seals by unsnapping the display mask along the two sides and the bottom edge to remove display.
4 Replacement Procedures Installing the Display Mask To install the display mask, follow the steps below and refer to the figures in the preceding section. 1. Seat the display mask and secure the snaps on each side. 2. Secure the display mask with two M2.5x5 screws.
4 Replacement Procedures 4.20 LCD Module Removing the LCD Module To remove the LCD module, first remove the display assembly and display mask, then follow the steps below. 1. Remove two M2.5x5 black screws securing the LCD module bracket to LCD cover. 2. Disconnect the LCD cable from the FL inverter board.
4 Replacement Procedures 3. Remove eight M2x3 screws securing LCD module bracket to the LCD module. Figure 4-38 1. Removing the LCD module-2 Remove the LCD module. NOTE: If the LCD module malfunctions, remove the LCD cable and LCD bracket. Then replace the whole LCD module unit. Installing the LCD Module To install the LCD module, follow the steps below and refer to the figures in the preceding section. 1. Set the LCD module in the display assembly. 2.
4 Replacement Procedures 4.21 FL Inverter Board Removing the FL Inverter Board To remove the FL inverter board, first remove the battery pack, the display assembly, display mask, and LCD module, then follow the step below. 1. Remove one black M2x3 screw securing the FL invert board to the LCD display assembly. Figure 4-39 Removing the FL inverter board 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.
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. 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. Be sure to quickly wipe off any liquid.
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 TECRA A3/S2 Series Maintenance Manual
Appendix B Appendix B Board Layout B.
B.
Table B-1 System board ICs (top and bottom) Mark Number (A) U5 Intel Alviso Chip (B) U17 ICH6-M (C) U15 ENE 910L (D) U22 Marvell 88SA8040 (E) U27 RealTEK ALC250VD (F) U36 Marvell 8036 (G) U41 TI PCI7411 (H) U8 ICS954226AG (I) U16 BIOS ROM TECRA A3/S2 Series Maintenance Manual Name B-3
Table B-2 System board connectors (top and bottom) Number JP1 CRT conn. JP2 Docking modem conn. JP3 LAN/B conn. JP4 Power/B conn. JP5 Printer conn.
C. Appendix C Pin Assignments System Board C.1 JP24,JP25 Table C-1 SODIMM I/F pin assignments (200-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 (200-PIN) (2/4) Pin No. C-2 Signal name I/O Pin No. Signal Name I/O 51 VSS - 52 VSS - 53 DQ19 I/O 54 DQ23 I/O 55 DQ24 I/O 56 DQ28 I/O 57 2.5VDD O 58 2.5VDD 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 (200-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 (200-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 Table C-2 RGB I/F pin assignments (15-pin) Pin No. Signal name I/O Pin No.
C.3 JP18 Table C-3 HDD I/F pin assignments (44-pin) Pin No. C-6 Signal name I/O Pin No.
C.4 JP31 Table C-4 ODD I/F pin assignments (50-pin) Pin No. Signal name I/O Pin No.
C.5 JP19 Table C-5 PC Card I/F pin assignments (84-pin) (1/2) Pin No. C-8 Signal name I/O Pin No.
59 S1_D0 TECRA A3/S2 Series Maintenance Manual I 60 S1_D8 I/O C-9
Table C-5 PC Card I/F pin assignments (84-pin) (2/2) Pin No. C-10 Signal name I/O Pin No.
C.6 JP28 Table C-6 Mini PCI I/F pin assignments (124-pin) (1/2) Pin No. 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 PIRQH# I 18 +5VS_MINIPCI - 19 +3.3V O 20 PIRQG# I 21 NC - 22 NC - 23 GND - 24 +3.3V O 25 PCICLK O 26 PCIRST# O 27 GND - 28 +3.3V O 29 REQ1# I 30 GNT1# O 31 +3.
C-12 TECRA A3/S2 Series Maintenance Manual
Table C-6 Mini PCI I/F pin assignments (124-pin)(2/2) Pin No. Signal name I/O Pin No. Signal Name I/O 61 IRDY# I/O 62 GND 63 +3.3V O 64 FRAME# I/O 65 PM_CLKRUN# I/O 66 TRDY# I/O 67 PCI_SERR# I/O 68 STOP# I/O 69 GND - 70 +3.
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C.7 JP6 Pin No. Signal name Function 1 B+ Power 2 DAC_BRIG Inverter Control signal 3 B+ Power 4 INVT_PWM Inverter Control signal 5 NC Non-Connection 6 DISPOFF# Inverter Control signal 7 +3VS DDC 3.3V POWER SUPPLY : +3.
C.8 31 GMCH_TZCLK- Panel Clock Signals 32 GMCH_TXCLK- Panel Clock Signals 33 GMCH_TZCLK+ Panel Clock Signals 34 GMCH_TXCLK+ Panel Clock Signals 35 NC Non-Connection 36 NC Non-Connection 37 NC Non-Connection 38 NC Non-Connection 39 LCD_ID No EDID Panel Detect 40 VSS GND JP29 Pin No. Signal name Signal Name 1 5 in 1-GND 23 S.M/xD-06 2 5M-CD-COM 24 S.M/xD-07 3 5M-CD-SW 25 S.M-LVD 26 #S.M/xD-R/B 4 C-16 Pin No. 5 SD-WP-SW 27 #S.M/xD-RE 6 SD-DAT1 28 #S.
C.9 18 MS-DATA3 40 xD-VCC 19 MS-SCLK 41 SD-CD-COM 20 MS-VCC 42 SD-CD-SW 21 S.M/xD-04 43 SM-WP-SW 22 S.M/xD-05 44 5in1-GND JP12 Table C-9-1 JP12 Fan I/F pin assignments (3-pin) Pin No. C.10 Signal name I/O Pin No. Signal Name I/O 2 FAN-SPEED1 O 1 FAN1 I 3 GND - PJP1 Table C-10 AC Adaptor Connector pin assignments (3-pin) Pin No. Signal name I/O Pin No.
C.11 JP21 Table C-11 Microphone I/F pin assignments (6-pin) Pin No. C.12 Signal name I/O Pin No. Signal Name I/O 1 ANGND - 2 MIC I 3 BIAS I 4 NC - 5 NC - 6 ANGND - JP22 Table C-12 Headphone Connector pin assignments (6-pin) Pin No. C-18 Signal name I/O Pin No.
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) 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 Code set 1 Keytop No. Make Code set 2 Break Make Note Break 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 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 No.
Table D-3 Scan codes in Numlock mode Cap Key Code set 1 No.
Table D-5 Scan codes in overlay mode Cap Code set 1 Keytop No. 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.
E.
E.3 Spanish (SP) Keyboard Figure E-3 SP keyboard E.
E.
E.
E.7 French-Canadian Keyboard Figure E-7 FR-C keyboard E.
E.9 US-INTERNATIONAL Keyboard Figure E-9 US-INTE Keyboard E.
E.11 Chinese-T Keyboard Figure E-11 CH-T keyboard E.
E.13 ITALIAN Keyboard Figure E-13 IT keyboard E.
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Appendix G Appendix F Series Screw Torque List Table F-1 Series Screw Torque List SCREW P/N SCREW SPEC Q'ty LOCATION SCREW TORQUE MMCK25050Z0 M2.5*5 4 LCD BRACKET ASSY (R/L) TO COVER SUB ASSY 2.5~3.0kg MMCK20030Z0 M2.0*3 8 LCD BRK TO LCD PANEL (15") 2.0~2.5kg MMCK20030Z0 M2.0*3 1 INVERTER TO COVER SUB ASSY 2.0~2.5kg MMCK20030Z0 M2.0*3 1 LCD CABLE TO COVER 2.0~2.5kg MM000000100 M2.0*4 4 PCMCIA TO MB 1.5~2.0kg MM000000100 M2.0*4 2 BATT CONN TO MB 1.5~2.
SCREW P/N SCREW SPEC Q'ty LOCATION SCREW TORQUE MACK25080Z0 M2.5*8 1 LOG LOW TO HINGE SADDLE R TO LOG UP 1.2~1.5kg MACK25080Z0 M2.5*8 1 LL TO LL SHIELD TO MB TO LU 1.2~1.5kg MACK25080Z0 M2.5*8 1 LL TO LL SHIELD MB STANDOFF TO HINGE SADDLE TO LU 1.2~1.5kg MACK25080Z0 M2.5*8 1 LL TO LL SHIELD TO HINGE SADDLE TO LU 1.2~1.5kg MACK25080Z0 M2.5*8 1 LL TO LL SHIELD HINGE SADDLE TO LU 1.2~1.5kg MACK25080Z0 M2.5*8 2 LL TO LL HDD SHIELD TO VR_USB_BOARD TO LU 1.2~1.
F-3 MMCK25030Z0 M2.5*3 2 KB TO TOP SHIELD BATT TO LU 2.5~3.0kg MMCK25030Z0 M2.5*3 1 RJ11/45 PCB TO LL SHIELD TO LL 2.5~3.0kg MMCK25030Z0 M2.5*3 2 MDC MODEN TO MDC MODEN STANDOFF 2.5~3.0kg MMCK25030Z0 M2.5*3 1 LCD WIRE TO UP 2.5~3.0kg MMCK20030Z0 M2.0*3 2 BLUETOOTH BOARD TO BLUETOOTH STANDOFF 2.0~2.5kg MMCK20030Z0 M2.0*3 2 FIX BAY BRACKET WITH DRIVER 2.0~2.5kg MM000000200 M2.5*3.6 (SPECIAL SCREW) 1 MINI PCI BRACKET TO LOG LOW MM000000300 M2.5*3.
Appendix G Appendix G Reliability The following table shows MTBF (Mean Time Between Failures) for each component.
G-2 TECRA A3/S2 Series Maintenance Manual
