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TECRA A3/S2 Series Maintenance Manual

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.

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Summary of Contents for Tecra A3-S711

Page 1: ...Toshiba Personal Computer TECRA A3 S2 Maintenance Manual TOSHIBA CORPORATION ...

Page 2: ...rporation Microsoft MS DOS Windows DirectSound and DirectMusic are registered trademarks of Microsoft Corporation Intel and Pentium are registered trademarks and SpeedStep is a trademark of Intel Corporation Sound Blaster is a registered trademark of Creative Technology Ltd Centronics is a registered trademark of Centronics Data Computer Corporation Photo CD is a trademark of Eastman Kodak All oth...

Page 3: ...ir of the computer may result in safety hazards Toshiba requires service technicians and authorized dealers or service providers to ensure the following safety precautions are adhered to strictly Be sure to fasten screws securely with the right screwdriver If a screw is not fully fastened it could come loose creating a danger of a short circuit which could cause overheating smoke or fire If you re...

Page 4: ...ins how to diagnose and resolve FRU problems Chapter 3 Test and Diagnostics describes how to perform test and diagnostic operations for maintenance service Chapter 4 Replacement Procedures describes the removal and replacement of the FRUs Appendices The appendices describe the following Handling the LCD module Board layout Pin assignments Keyboard scan character codes Key layout Screw torque list ...

Page 5: ...e keyboard is printed in boldface type Key operation Some operations require you to simultaneously use two or more keys We identify such operations by the key top symbols separated by a plus sign For example Ctrl Pause Break means you must hold down Ctrl and at the same time press Pause Break If three keys are used hold down the first two and at the same time press the third User input Text that y...

Page 6: ...ng Introduction 2 2 Troubleshooting Flowchart 2 3 Power Supply Troubleshooting 2 4 Display Troubleshooting 2 5 Keyboard Troubleshooting 2 15 2 6 External USB Devices Troubleshooting 2 17 2 7 TV Out Failure Troubleshooting 2 19 2 8 Printer Port Troubleshooting 2 21 2 9 TouchPad Troubleshooting 2 23 2 10 Speaker Troubleshooting 2 25 2 11 Modem Troubleshooting 2 27 2 12 PCMCIA Troubleshooting 2 29 2 ...

Page 7: ...iagnostic Test 3 3 Config Check Test 3 4 DMI Check Test 3 5 PIO Loopback Test 3 7 Speaker Audio Test 3 8 Fan ON OFF Test 3 9 Main Battery Charge Test 3 10 FDD Test 3 11 CD ROM Test 3 12 Keyboard Test 3 13 Mouse Pad Test 3 14 LCD Pixels Mode Test 3 15 Lid Switch Test 3 16 HDD R W Test 3 17 LAN Test 3 18 RTC Test ...

Page 8: ... Optical Drive 4 13 4 7 Wireless LAN 4 15 4 8 Expansion Memory 4 17 4 9 Keyboard 4 21 4 10 Bluetooth 4 21 4 11 Modem 4 25 4 12 Display Assembly 4 26 4 13 Top Cover 4 28 4 14 Touch Pad 4 31 4 15 Speakers 4 32 4 16 System Board 4 33 4 17 Direct Play buttom board 4 36 4 18 Fan Hest CPU 4 37 4 19 Display Mask 4 38 4 20 LCD Module 4 42 4 21 FL Inverter Board 4 44 ...

Page 9: ...dices 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 D 1 Appendix E Key Layout E 1 Appendix F Series Screw Torque List F 1 Appendix G Reliability G 1 ...

Page 10: ...Chapter 1 Hardware Overview 1 ...

Page 11: ...1 Hardware Overview 1 ii Tecra A3 S2 Series Maintenance Manual ...

Page 12: ...Unit 1 10 1 3 2 5 inch Hard Disk Drive 1 14 1 4 Removable Drives 1 15 1 4 1 DVD R RW Drive Error Bookmark not defined 1 4 2 DVD ROM Drive 1 15 1 4 3 CD ROM Drive 1 15 1 4 4 DVD R RW Drive 1 15 1 4 5 DVD Super Multi Drive 1 17 1 5 Power Supply 1 15 1 6 Batteries 1 21 1 6 1 Main Battery 1 21 1 6 2 RTC battery 1 22 ...

Page 13: ...1 Hardware Overview 1 iv Tecra A3 S2 Series Maintenance Manual ...

Page 14: ...e Intel 915PM Express Chipset ATI MOBILITYTM RADEON X600 with 64MB or 128MB MOBILITYTM RADEON X300 with 32MB 64MB or 128MB NVIDIA GeForceTM Go 6600 GPU with 64MB or 128MB GeForceTM Go 6200 GPU with Turbo Cache with 32MB or 64MB for local cache Video RAM Depending on the model youpurchased Intel Graphic model Video RAM up to128MB integrated solution and share with main memory for Intel 915GM 910GML...

Page 15: ...city with the system off Approximately 2 days discharge time in standby mode for 12 cell battery and 1 day for 6 cell battery Discharge time in shutdown mode is approximately 1 month HDD One 2 5 9 5mm hard disk with capacity 30GB 40GB 60GB 80 100GB 120GB Bus Master IDE 9 5mm 2 5 HDD Support Support Ultra 100 synchronous DMA ODD Devices One of the following 5 25 12 7mm height COMBO device 5 25 12 7...

Page 16: ...ware you are using Display 15 0 TFT screen with a resolution of 1600 horizontal x1200 vertical pixels UXGA 15 0 TFT screen with a resolution of 1400 horizontal x1050 vertical pixels SXGA 15 0 TFT screen with a resolution of 1024 horizontal x768 vertical pixels XGA 15 0 TFT screen with a resolution of 1024 horizontal x768 vertical pixels XGA CSV 15 0 TFT screen with a resolution of 1024 horizontal ...

Page 17: ...ller Interface UHCI The USB enables daisy chain connection of up to 127 USB equipped devices It is designed for easy configuration by a Plug and Play operating system and provides hot insertion ejection capability Parallel port A 25 pins parallel port enables connection of a printer or other parallel device The port supports Extended Capabilities Port ECP conforming to IEEE 1284 and is Enhanced Pa...

Page 18: ... supporting Macrovision copyprotection 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 TOSHIBA Presentation Button This button allows the user to switch between the LCD and LCD CRT or projector ...

Page 19: ...AN Marvell 88E8036 for 10 100M LAN Memory On board with two 200 pin 2 5V SO DIMM connector supporting DDR memories card Maximum up gradable to 2GB by two 1GB SO DIMM module 1MB 2MB L2 Cache on CPU Support 64MB 128MB VGA memory for NV43M M24P M22P Adjustable 128MB UMA VGA memory share from North Bridge Fixed Disk Interface Marvell 88SA8040 supports PATA HDD Video Subsystem UMA VGA Memory up to 128M...

Page 20: ... Address and Data Bus 8 Bit I O Transfers 8 Bit DMA Transfers 16 Bit Address Qualification Serial IRQ Interface Compatible with Serialized Serial IRQ Interface Compatible with Serialized IRQ Support for PCI Systems PCI CLKRUN Support Power Management Event IO_PME Interface Pin Keyboard controller KB910L is use as keyboard controller and battery management unit Audio subsystem Realtek ALC250VD for ...

Page 21: ... serialized IRQ with PCI interrupts Supports PC Card or CardBus with hot insertion and removal Supports 132 MBps burst transfers to maximize data throughput on both the PCI bus and the CardBus Supports ring indicate SUSPEND and PCI CLKRUN protocols and PCI bus Lock Lock Fully interoperable with FireWire and i LINK implementations of IEEE Std 1394 Two IEEE Std 1394a 2000 fully compliant cable ports...

Page 22: ...LAN PCI Express base specification 1 0a compliant x1 PCI Express interface with 2 5GHz signaling Active state power management L0s support Advanced error reporting Configurable 4KB deep buffer Message signaled interrupts Compliant to 802 3x flow control support 10 100 IEEE 802 3 compliant Wake On LAN WOL power management support Compliant to ACPI 2 0 specification Smart power down when link is not...

Page 23: ... A3 S2 Series Maintenance Manual 1 3 2 5 inch Hard Disk Drive The internal HDD is a random access non volatile storage device It has a non removable 2 5 inch magnetic disk and mini Winchester type magnetic heads The computer supports a 30 40 60 80 100 120GB HDD ...

Page 24: ...rates DVD ROM Maximum 8 times faster rotational speed CD ROM Maximum 24 times faster rotational speed Buffer capacity 256 Kbytes Max 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 E G CD MIDI CD R DVD DVD 5 DVD 9 DVD 10 DVD 18 DVD RAM Ver 2 1 DVD R Ver 1 0 2 1 DVD RW Ver1 0 1 1 1...

Page 25: ...d CD ROM Maximum 24 times faster rotational speed DVD RAM Standard rotational speed Write speeds CD R Maximum 24 times faster rotational speed CD RW Maximum 24 times Ultra Speed faster rotational speed Buffer capacity 2 Mbytes Max Supported formats Applicable Write Formats CD CD R CD RW Applicable Write Disc CD CD R CD RW CD DA CD E G CD MIDI CD TEXT CD ROM CD ROM XA MIXED MODE CD CD I CD I Bridge...

Page 26: ...tational speed Buffer capacity 2 Mbytes Max Supported formats Applicable Write Formats CD DVD CD R CD RW DVD R DVD RW DVD R DVD RW DVD R DL Applicable Write Disc CD CD R CD RW CD DA CD E G CD MIDI CD TEXT CD ROM CD ROM XA MIXED MODE CD CD I CD I Bridge Photo CD Video CD Multisession CD Photo CD CD EXTRA Portfolio Applicable Read Disc CD CD DA CD E G CD MIDI CD TEXT CD ROM CD ROM XA MIXED MODE CD C...

Page 27: ...tional speed DVD R DL Maximum 2 4 times faster rotational speed UJ 831B DV W28E Buffer capacity 2 Mbytes Max Supported formats Applicable Write Formats CD DVD CD R CD RW DVD R DVD RW DVD R DVD RW DVD RAM DVD R DL UJ 831B DV W28E Applicable Write Disc CD CD R CD RW CD DA CD E G CD MIDI CD TEXT CD ROM CD ROM XA MIXED MODE CD CD I CD I Bridge Photo CD Video CD Multisession CD Photo CD CD EXTRA Portfo...

Page 28: ... The EC checks the following by GPIO values AC adaptor connected 3 Abnormal check The EC determines whether the condition is abnormal and if so stores an error code into the error register 4 Input port management The EC monitors the following input signal status System power ON OFF status 5 Beep and LED control Beep is caused by the low battery status The EC controls the following two kinds of LED...

Page 29: ...e EC detects the low battery point by the gas gauge LB10M The system will be driven by the battery for 12 more minutes LB0 The battery won t be able to drive the system after 3 minutes LB1 The battery can drive the system only during the suspend process LB2 The battery cannot drive the system 9 New battery installation When a new battery is installed the EC communicates with the E2 PROM in the bat...

Page 30: ...attery Battery charging is controlled by a power supply microprocessor that is mounted on the system board The power supply microprocessor controls whether the charge is on or off and detects a full charge when the AC adaptor and battery are attached to the computer The system charges the battery using quick charge or trickle charge Quick Battery Charge When the AC adaptor is attached there are tw...

Page 31: ...ery becomes fully charged 2 The AC adaptor or battery is removed 3 The battery or output voltage is abnormal 4 The battery temperature is abnormal 5 The battery SMBus communication fails 6 The battery cell is bad Detection of full charge A full charge is detected from the battery pack through SMBus when the battery is charging 1 6 2 RTC battery The RTC battery provides power to keep the current da...

Page 32: ...Chapter 2 Troubleshooting Procedures 2 ...

Page 33: ...2 Troubleshooting Procedures 2 ii Tecra A3 S2 Series Maintenance Manual ...

Page 34: ...7 2 4 Display Troubleshooting 2 12 2 5 Keyboard Troubleshooting 2 15 2 6 External USB Devices Troubleshooting 2 17 2 7 TV Out Failure Troubleshooting 2 19 2 8 Printer Port Troubleshooting 2 21 2 9 TouchPad Troubleshooting 2 23 2 10 Speaker Troubleshooting 2 25 2 11 Modem Troubleshooting 2 27 2 12 PCMCIA Troubleshooting 2 29 2 13 IEEE 1394 Troubleshooting 2 31 2 14 Wireless LAN Troubleshooting 2 33...

Page 35: ...device troubleshooting process 2 17 Figure 2 6 TV out troubleshooting process 2 19 Figure 2 7 Printer port troubleshooting process 2 21 Figure 2 8 TouchPad troubleshooting process 2 23 Figure 2 9 Speaker troubleshooting process 2 25 Figure 2 10 Optical drive troubleshooting process 2 27 Figure 2 11 Modem troubleshooting process 2 30 Figure 2 12 PCMCIA troubleshooting process 2 32 Figure 2 13 IEEE ...

Page 36: ...re described in Chapter 3 Detailed replacement procedures are given in Chapter 4 The following tools are necessary for implementing the troubleshooting procedures 1 Diagnostics Disk Repair and Sound Repair 2 Phillips screwdriver 2 mm 3 6mm nut driver for the helix screw nuts on the rear ports for CPU door 4 2DD or 2HD formatted work disk for floppy disk drive testing 5 Printer port loopback connec...

Page 37: ...res 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 Verify with the customer that Toshiba Windows XP is installed on the hard disk Operating systems that were not preinstalled by Toshiba can cause the computer to malfunction Make sure all optional equipment is removed from th...

Page 38: ...message displays type the password then press Enter Is Toshiba Windows being loaded A Yes Yes Yes Yes Yes Yes Perform the Power Supply Troubleshooting procedures in section 2 3 Perform diagnostics program Run CM165 EXE and select the HARD DISK item Perform the Display Troubleshooting procedures in section 2 4 Perform the Power Supply Troubleshooting procedures in section 2 3 Perform the Power Supp...

Page 39: ...gnostics test loaded Allow each test to perform automatically Is an error detected by any of the diagnostics tests System is normal End Yes Yes Yes No Perform the Keyboard Troubleshooting procedures in section 2 6 Perform the FDD Troubleshooting procedures in section 2 5 After confirming which diagnostics test has detected an error perform the appropriate procedure as outlined below No No Yes Figu...

Page 40: ... display test perform the Display Troubleshooting procedures in Section 2 4 3 If an error is detected by the keyboard test perform the Keyboard Troubleshooting procedures in Section 2 5 4 If an error is detected by the printer parallel port test perform the Printer Port Troubleshooting procedures in Section 2 8 5 If an error is detected by the TouchPad test perform the TouchPad Troubleshooting pro...

Page 41: ...leshooting procedures in Section 2 7 3 If an error is detected when using the speakers perform the Speaker Troubleshooting procedures in Section 2 10 4 If an error is detected when using the modem perform the Modem Troubleshooting procedures in Section 2 12 5 If an error is detected when using the PCMCIA unit perform the PCMCIA Troubleshooting procedures in Section 2 13 6 If an error is detected w...

Page 42: ... LEDs lit Can you turn the computer on Are the internal power connections secure END Check Power Supply Status Procedure 1 No Yes Check power supply connections Procedure 3 Run diagnostic program Procedure 4 Yes No Replace adaptor battery Procedure 2 No Perform internal connection check Procedure 5 Replace system board Yes Figure 2 2 Power Supply Troubleshooting Process ...

Page 43: ... The following LEDs indicate the power supply status Battery LED DC IN LED The power supply controller displays the power supply status through the Battery and the DC IN LEDs as listed in the tables below Table 2 1 Battery LED Battery State LED colors Definition Amber solid on Battery charging with AC Green solid on Battery fully charged by AC Charging Green color off Battery abnormal stop chargin...

Page 44: ...s 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 Perform Check 1 Check 1 Connect a new AC adaptor If the problem is not resolved go to Check 2 Check 2 Insert a new battery I...

Page 45: ... adaptor inlet and wall outlet If these cables are connected correctly go to Check 3 Check 3 Make sure that the DC IN input port socket is firmly secured to the system board of the computer If the DC IN input socket is loose go to Procedure 5 If it is not loose go to Check 4 Check 4 Use a multi meter to make sure that the AC adaptor output voltage is close to 15V If the output is several percent l...

Page 46: ...ctioning normally Procedure 5 Replacement check The system board may be disconnected or damaged Disassemble the computer following the steps described in Chapter 4 Replacement Procedures Check the connection between the AC adaptor and the system board After checking the connection perform Check 1 Check 1 Use a multi meter to make sure that the fuses on the system board are not blown If a fuse is n...

Page 47: ...isplay check Procedure 1 S T A R T Does the external display function ok Perform diagnostic check Procedure 2 N o Was a display problem detected Perform connector and replacement check Procedure 3 Replace system board E N D Yes Y e s N o Display is not faulty Continue troubleshooting refer to Figure 2 1 Figure 2 3 Display troubleshooting process ...

Page 48: ...n boot the computer The computer automatically detects the external display If the external display works correctly the internal LCD may be damaged Go to Procedure 3 If the external monitor appears to have the same problem as the internal monitor the system board may be damaged Go to Procedure 2 Procedure 2 Diagnostic check The Display Test program is stored on the computer s Diagnostics disk This...

Page 49: ...d properly Test display again If the problem still exits replace the DDR RAM module If the problem still exists perform Check 2 Check 2 Replace the FL inverter board with a new one and test display again If the problem still exists perform Check 3 Check 3 Replace the LCD module with a new one and test display again If the problem still exists perform Check 4 Check 4 Replace the LCD FL cable with a...

Page 50: ...eyboard check Procedure 1 S T A R T Does the external keyboard function ok Perform diagnostic check Procedure 2 Was a keyboard problem detected Perform connector and replacement check Procedure 3 Replace system board E N D Yes N o Keyboard is not faulty Continue troubleshooting refer to Figure 2 1 N o Yes Figure 2 4 Keyboard troubleshooting process ...

Page 51: ... it with a new one following the instructions in Chapter 4 Procedure 2 Diagnostic check Run the Diagnostic Program which will automatically execute the Keyboard Test Refer to Chapter 3 Tests and Diagnostics for more information on how to run the program If an error is located go to Procedure 3 If an error does not occur the keyboard is functioning properly Procedure 3 Connector and replacement che...

Page 52: ...ng Replace system board Procedure 2 E N D Original USB device is faulty Perform external device and connection check Procedure 1 S T A R T Does the device function when connected to a different USB port Does an alternative USB device function correctly N o Y e s N o Check USB port connection Y e s Figure 2 5 External USB device troubleshooting process ...

Page 53: ...SB socket there are three in all If the USB device still does not work go to Check 4 If the device functions correctly when connected to another USB port go to Check 3 Check 3 Make sure that the USB socket is firmly secured to the system board of the computer If the malfunction remains the system board may be damaged Go to Procedure 2 Check 4 Connect an alternative USB device to one of the compute...

Page 54: ... TV Out Failure Troubleshooting Perform TV connection check Procedure 1 S T A R T Does replacement TV cable function properly Perform TV set check Procedure 2 Replace system board E N D N o R e p l a c e T V c a b l e N o TV functioning ok Yes Use different TV s e t No Figure 2 6 TV out troubleshooting process ...

Page 55: ...uter If the cable is connected correctly go to Check 2 Check 2 Make sure the TV out port is firmly secured to the system board of the computer If the malfunction remains go to Check 3 Check 3 The TV cable may be damaged Replace with a good cable If the malfunction remains go to Procedure 2 Procedure 2 TV set check The TV set may be faulty Perform Check 1 Check 1 Try using the set for television re...

Page 56: ...hooting START Perform diagnostic check Procedure 1 Does the print port function ok Perform print port loopback check Procedure 2 Print port is not faulty continue troubleshooting refer to Figure 2 1 Was a print port problem detected Replace system board Procedure 3 END Yes Yes No No Figure 2 7 Printer port troubleshooting process ...

Page 57: ... may be faulty or not connected properly Perform Check 1 Check 1 Make sure printer cable is firmly plugged into both the printer and the printer port of the computer If the cable is connected correctly go to Check 2 Check 2 Make sure the printer port is firmly secured to the system board of the computer If the malfunction remains go to Check 3 Check 3 The printer cable may be damaged Replace with ...

Page 58: ...hooting Procedures Tecra A3 S2 Series Maintenance Manual 2 23 2 9 TouchPad Troubleshooting START END TouchPad connection check Procedure 1 TouchPad replacement check Procedure 2 Replace system board Figure 2 8 TouchPad troubleshooting process ...

Page 59: ... FPC to the system board Make sure the TouchPad FPC cable is firmly connected to the TouchPad and system board Refer to Chapter 4 Replacement Procedures for instructions on how to disassemble the computer and then perform the following checks If any of the connections are loose reconnect firmly If any of the connections is damaged or there is still an error go to Procedure 2 Procedure 2 TouchPad r...

Page 60: ...urces have same problem END Perform earphone test Procedure 2 Do earphones function correctly Perform connection check Procedure 3 Perform replacement check Procedure 4 Perform audio source test Procedure 1 No Yes Yes Replace system board Speakers are not faulty Continue troubleshooting see Figure 2 1 No Figure 2 9 Speaker troubleshooting process ...

Page 61: ...und problem the problem is in the source devices If all have the same problem continue with Procedure 2 Procedure 2 Earphone test Connect a set if earphones or external speakers If these function correctly go to Procedure 3 If they do not function correctly the system board may be defective or damaged Replace it with a new one Procedure 3 Connection check Disassemble the computer following the ste...

Page 62: ...m Troubleshooting START Computer unable to detect telephone signal END Perform connection check Procedure 2 Perform replacement check Procedure 3 Perform telephone line connection check Procedure 1 Check replace telephone line and connections Yes Replace system board No Figure 2 11 Modem troubleshooting process ...

Page 63: ...lephone cable the wall socket or the modem port Perform Check 1 Check 1 Make sure telephone cable is firmly plugged into both the telephone wall socket and the modem port of the computer If the cable is connected correctly go to Check 2 Check 2 Make sure the modem port is firmly secured to the system board of the computer If the malfunction remains go to Check 3 Check 3 The telephone cable may be ...

Page 64: ... Maintenance Manual 2 29 2 12 PCMCIA Troubleshooting START Do errors occur during SYCARD test Perform PCMCIA socket replacement check Procedure 2 Replace system board END PCMCIA unit is not faulty Perform SYCARD test Procedure 1 No Yes Figure 2 12 PCMCIA troubleshooting process ...

Page 65: ...D test card contains a PCMCIA test program Ensure the card in fully inserted into the socket before running the program If an error occurs during the SYCARD test perform Procedure 2 If no error occurs it is likely that the original PC card was faulty Procedure 2 PCMCIA socket replacement check The PCMCIA socket may be damaged or defective for instance the socket pins can be bent Disassemble the co...

Page 66: ...4 device check Procedure 1 Is IEEE 1394 transmission ok Perform diagnostic check Procedure 2 Was an IEEE 1394 problem detected Perform connection and replacement check Procedure 3 Replace system board END Yes Yes IEEE 1394 port and transmission are not faulty Continue troubleshooting refer to Figure 2 1 No No Figure 2 13 IEEE 1394 troubleshooting process ...

Page 67: ... Go to Procedure 2 If communication is impaired there may be a faulty connection Go to Procedure 3 Procedure 2 Diagnostic check Run the Diagnostic Program which will automatically execute the IEEE 1394 port test for transmission Refer to Chapter 3 Tests and Diagnostics for more information on how to run the program If an error is located go to Procedure 3 If an error does not occur the 1394 port i...

Page 68: ... Touch Pad Troubleshooting 2 Troubleshooting Procedures Tecra A3 S2 Series Maintenance Manual 2 33 Check 4 The system board may be damaged Replace it with a new one following the instructions in Chapter 4 ...

Page 69: ...ooting START Perform diagnostic test Procedure 1 Was a wireless LAN problem delected Perform connector and replacement check Procedure 2 Replace wireless LAN antenna unit Replace system board END Yes Wireless LAN system is not faulty Continue troubleshooting refer to Figure 2 1 No Figure 2 14 Wireless LAN troubleshooting process ...

Page 70: ...unit or system board may be disconnected or damaged Disassemble the computer following the steps described in Chapter 4 Replacement Procedures and perform the following checks Check 1 Make sure that the wireless LAN antenna is firmly connected to the wireless LAN unit refer to Chapter 4 for instructions and that the wireless LAN unit is securely slotted into the system board If the problem persist...

Page 71: ...2 Troubleshooting Procedures 2 10 Speaker Troubleshooting 2 36 Tecra A3 S2 Series Maintenance Manual ...

Page 72: ...Chapter 3 Tests and Diagnostics 3 ...

Page 73: ...3 Tests and Diagnostics 3 ii Tecra A3 S2 Series Maintenance Manual ...

Page 74: ...ig Check Test 3 7 3 4 DMI Check Test 3 8 3 5 PIO Loopback Test 3 9 3 7 Speaker Audio Test 3 11 3 8 Fan ON OFF Test 3 12 3 9 Main Battery Charge Test 3 13 3 10 FDD Test 3 14 3 11 CD ROM Test 3 16 3 12 Keyboard Test 3 17 3 13 Mouse Pad Test 3 20 3 14 LCD Pixels Mode Test 3 22 3 15 Lid Switch Test 3 23 3 16 HDD R W Test 3 24 3 17 LAN Test 3 26 3 18 RTC Test 3 30 ...

Page 75: ...3 Tests and Diagnostics 3 iv Tecra A3 S2 Series Maintenance Manual ...

Page 76: ...u The TEST DIAGNOSTIC PROGRAM contains the following functional tests CONFIG CHECK TEST DMI CHECK TEST PIO LOOPBACK TEST IEEE1394 TEST SPEAKER AUDIO TEST FAN ON OFF TEST MAIN BATTERY CHARGE TEST FDD TEST CD ROM TEST KEYBOARD TEST MOUSE PAD TEST LCD PIXELS MODE TEST LID SWITCH TEST HDD R W TEST LAN TEST RTC TEST You will need the following equipment to perform some of the Diagnostic test programs T...

Page 77: ...3 Tests and Diagnostics 3 2 Tecra A3 S2 Series Maintenance Manual ...

Page 78: ...t make sure the CD is installed in the CD DVD ROM drive The T D Program can run by single test item when you press corresponsive English letter of test item or run two or more test items what you like if you choose them by Arrow cursors and Space Bar the wonderful thing is you can setup test loop by Enter button And it also asks you if you like to copy test log file to diskette as reference at the...

Page 79: ... Diagnostics 3 2 Executing the Diagnostic Test 3 4 Tecra A3 S2 Series Maintenance Manual The below display will show up at the beginning of T D program If the test result passes the following display will show up ...

Page 80: ...S2 Series Maintenance Manual 3 5 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 ...

Page 81: ...ies Maintenance Manual 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 ...

Page 82: ...ize 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 greencolor or failed in red color The screen should display as below indicating whether the test is passed or failed after comparison ...

Page 83: ...rrect 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 The screen should display as below indicating whether the test is passed or failed after comparison ...

Page 84: ...ms 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 ...

Page 85: ...3 Tests and Diagnostics 3 6 IEEE 1394 Test 3 10 Tecra A3 S2 Series Maintenance Manual ...

Page 86: ...eaker 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 ...

Page 87: ...is test The computer will let the fanbe 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 Listen to check if the fan is OFF it means no rotating sound The screen should display as below indicating whether the test is passed or failed ...

Page 88: ...9V should be connected to successfully run this test This test shows and measures the main battery Battery type Ni MH Lion Manufacturer Sony Sanyo Remain charge capacity 0 100 Charge function PASS FAIL Battery Is Full showed when remain charge capacity is 100 The screen should display as below indicating whether the test is passed or failed when finished ...

Page 89: ...tte 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 Write Read Compare pattern function Range Track 75 79 NOTE The write protected device of this formatted diskette should be Disable The subtests run automatically NOTE Press Esc key can skip the current subtest The screen shoul...

Page 90: ...3 10 FDD Test 3 Tests and Diagnostics Tecra A3 S2 Series Maintenance Manual 3 15 ...

Page 91: ...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 Check whether the tray can open automatically NOTE Press Esc key can skip the current subtest The screen should display as below indicating whethe...

Page 92: ...osen 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 When any key is pressed the corresponding key on the screen changes to black as shown below It will indicate whether the subtest is passed or failed after the question NOTE The Fn key cannot be tested in the keyboard test To determine whether the Fn key...

Page 93: ...3 Tests and Diagnostics 3 12 Keyboard Test 3 18 Tecra A3 S2 Series Maintenance Manual ...

Page 94: ...cs Tecra A3 S2 Series Maintenance Manual 3 19 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 ...

Page 95: ...eed 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 The Touch Pad button subtest allows users to test their Touch Pad buttons If the buttons are clicked the cursors should appear in the corresponding box of the bu...

Page 96: ...n 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 ...

Page 97: ...isplay 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 The screen should display as below indicating whether the test is passed or failed after the question ...

Page 98: ...id 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 ...

Page 99: ...BA before HDD write test starts The HDD test includes three subtests of the 1 Sequential read all surface 2 Sequential write all surface 3 Partial W R Random W R After the choice is made HDD information will show as below Model name Firmware revision Serial number CHR Cylinder High Register mode including cylinders heads sectors and sizes LBA Logical Block Addressing mode including sectors and siz...

Page 100: ...aintenance Manual 3 25 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 ...

Page 101: ...egins 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 including ASIC Loopback Speed 1000 2 Speed100 including ASIC Loopback speed 100 3 Speed 10 including ASIC Loopback Speed 10 The subtests run automatically ...

Page 102: ...3 17 LAN Test 3 Tests and Diagnostics Tecra A3 S2 Series Maintenance Manual 3 27 The screen should display as below indicating pass will go on to next test FAIL as below will keep this screen ...

Page 103: ...3 Tests and Diagnostics 3 17 LAN Test 3 28 Tecra A3 S2 Series Maintenance Manual ...

Page 104: ...3 17 LAN Test 3 Tests and Diagnostics Tecra A3 S2 Series Maintenance Manual 3 29 ...

Page 105: ...2 Series Maintenance Manual 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 ...

Page 106: ...Chapter 4 Replacement Procedures 4 ...

Page 107: ...4 Replacement Procedures 4 ii Tecra A3 S2 Series Maintenance Manual ...

Page 108: ... 4 12 4 6 Optical Drive 4 13 4 7 Wireless LAN 4 15 4 8 Expansion Memory 4 17 4 9 Keyboard 4 21 4 10 Bluetooth 4 21 4 11 Modem 4 25 4 12 Display Assembly 4 26 4 13 Top Cover 4 28 4 14 Touch Pad 4 31 4 15 Speakers 4 32 4 16 System Board 4 33 4 17 Direct Play buttom board 4 36 4 18 Fan Hest CPU 4 37 4 19 Display Mask 4 38 4 20 LCD Module 4 42 4 21 FL Inverter Board 4 44 ...

Page 109: ...the wireless LAN unit 4 16 Figure 4 12 Removing memorymodule cover 4 17 Figure 4 13 Removing a memory module 4 18 Figure 4 14 Removing an expansion memory cover 4 19 Figure 4 15 Installing an expansion memory 4 20 Figure 4 16 Removing the strip cover 4 21 Figure 4 17 Removing the keyboard 4 22 Figure 4 18 Disconnecting the keyboard cable 4 23 Figure 4 19 Removing the Bluetooth 4 24 Figure 4 20 Rem...

Page 110: ...ving the USB board 4 34 Figure 4 31 Removing the system board 4 35 Figure 4 32 Removing the Direct Play Button board 4 36 Figure 4 33 Removing the fan module 4 37 Figure 4 34 Removing heat sink 4 38 Figure 4 35 Removing the CPU 4 38 Figure 4 36 Removing the display mask 4 40 Figure 4 37 Removing the LCD module 1 4 42 Figure 4 38 Removing the LCD module 2 4 43 Figure 4 39 Removing the FL inverter b...

Page 111: ...rder to remove others Always start by removing the battery pack next optional items such as the optional PC Card then follow the chart downward removing only those FRUs necessary to reach the one you think is causing the computer to operate improperly Refer to the example on the following page Battery pack Keyboard Wireless LAN HDD ODD MODEM Direct Play Button Board Display Assembly Expansion Memo...

Page 112: ... 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 Battery pack Keyboard Wireless LAN HDD ODD MODEM Direct Play Button Board Display Assembly Expansion Memory Module Top Cover Display Mask System Board LCD Module Fa...

Page 113: ...e 2 Remove any metal jewelry or accessories such as necklaces bracelets or rings Batteries in the computer retain an electrical charge so there is danger of electrical shock even when the computer is disconnected from an AC power source 3 Never work with wet or damp hands 4 The computer contains sharp edges and corners be careful not to injure yourself 5 Make sure that all replacement components m...

Page 114: ...g and diagnostics tests described in chapters 2 and 3 of this manual 5 Do not perform any operations that are not necessary and use only the described procedures for disassembling and installing FRUs in the computer 6 After removing parts from the computer place them in a safe place away from the computer so they will not be damaged and will not interfere with your work 7 You will remove and repla...

Page 115: ...can be connected and disconnected by simply pulling them apart or pushing them together Assembly Procedures After you have disassembled the computer and fixed or repaired the problem that was causing the computer to operate abnormally you will need to reassemble the computer Install all the removed FRUs following the steps described in the corresponding sections in this chapter While assembling th...

Page 116: ...f 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 Tweezers to lift out screws that you cannot grasp with your fingers ESD mats for the floor and the table you are working on ESD wrist strap or heel grounder Anti static c...

Page 117: ...e 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 ...

Page 118: ...only batteries recommended by Toshiba as replacements 1 Slide the battery pack into the battery bay The battery bay latch will click automatically 2 Lock the battery pack lock and battery pack release latch to secure the installation 4 3 PC Card Removing a PC Card To remove a PC Card follow the steps below 1 Push the PC Card s eject button The button pops out when you release it 2 Push the eject b...

Page 119: ...4 Replacement Procedures Tecra A3 S2 Series Maintenance Manual 4 9 Figure 4 2 Removing a PC Card ...

Page 120: ...eps 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 Installing a PC Card 4 4 HDD NOTE When handling the HDD do not press the top surface as shown by the arrow Hold it by the sides Figure 4 4 HDD ...

Page 121: ...moving 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 Figure 4 5 Removing the HDD door ...

Page 122: ...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 ...

Page 123: ...oving 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 ...

Page 124: ...e 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 ...

Page 125: ... 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 Figure 4 9 Removing the optical drive bracket ...

Page 126: ... 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 ...

Page 127: ...he 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 Gently press out on the latches One end of the wireless LAN unit will pop up 6 Detach antenna cables from LAN card connect...

Page 128: ... 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 Fit the wireless LAN unit s connector to the computer s connectors and press carefully to ensure firm contact CAUTION Do not touch the connectors on the wireless LAN unit or on the computer Debris o...

Page 129: ...xpansion Memory Module Removing an Expansion Memory To remove an expansion memory module make sure the computer is in boot mode then 1 Be sure the power is off and all cables are disconnected from the computer 2 Turn the computer upside down and remove the battery pack Loosen the embedded M2 5x5 screw securing the memory module socket cover Figure 4 12 Removing the memory module cover 3 Slide your...

Page 130: ...ra A3 S2 Series Maintenance Manual 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 ...

Page 131: ...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 Figure 4 14 Removing an expansion memory cover 4 Slide your fingernail or a thin object under the cover and lift it off 5 Fit the module s connectors into the computer s connectors at about a 45 degree angle and press the modu...

Page 132: ...4 Replacement Procedures 4 22 Tecra A3 S2 Series Maintenance Manual Figure 4 15 Installing an expansion memory ...

Page 133: ...23 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 ...

Page 134: ...gure 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 ...

Page 135: ...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 ...

Page 136: ... 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 ...

Page 137: ...Modem To remove the installed modem follow the steps below 1 Remove the Modem cover Refer Figure 4 12 2 Remove two black M2 5x3 screws securing the modem module 3 Carefully lift the unit off its connector 4 Disconnect the modem cable from the modem module Figure 4 20 Removing the modem module ...

Page 138: ...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 5x8 screws from the back side of the computer Figure 4 21 Removing the display assembly screws 2 Pull the strip cover 3 Disconnect the wireless cable 1 from system 4 Disconne...

Page 139: ...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 Connect the wireless cable to the wireless module 5 Connect the Bluetooth cable to the Bluetooth module 6 Reinstall the strip cover and the keyboard 7 Secure t...

Page 140: ...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 Figure 4 23 Removing screws of the bottom ...

Page 141: ...intenance Manual 4 31 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 Figure 4 25 Removing FFC cables ...

Page 142: ...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 5x5 securing from bottom ...

Page 143: ... 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 Figure 4 27 Removing the Touch Pad board Installing the Touch Pad To install the Touch Pad follow the steps below and refer to the figures in the preceding section 1 Secure Touch Pad Bracket with one black M2 5x3 screw 2 Connect the Touch Pad board FFC cable t...

Page 144: ... 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 Secure each speaker with two black M2 5x3 screws 3 Attached the left and right speaker cables to the syst...

Page 145: ...ual 4 33 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 Figure 4 29 Removing LAN board ...

Page 146: ...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 Figure 4 30 Removing USB board ...

Page 147: ...emove 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 6 NI hexagonal screws securing the system board to the CRT port 3 Remove three screws securing the Fan and then detach the Fan from its connect...

Page 148: ...tor 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 17 Direct Play Button Board Removing the Direct Play Button Board To remove the Direct Play Button board first remove the Keyboard then follow the steps below 1 Remove two M2 5x 3 screws and ...

Page 149: ...over 4 18 Fan Heat Sink CPU Removing the Fan Heat Sink CPU To remove the Fan Heat Sink and CPU you must first remove the keyboard top to reveal the system board then follow the steps below CAUTION If you remove the heat sink you should use the CPU grease tool to remove the grease on the CPU and heat sink 1 On the topside of the system board remove three M2 5x5 screws securing the fan module 2 Remo...

Page 150: ... 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 ...

Page 151: ...o 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 Press the CPU softly with your fingers and turn the cam on the CPU socket to the closed position with a flat blade screwdriver to secure the CPU 6 Seat the heat sink over the CPU and secure with the four embedded screws in the order indicated on the heat sink 7 S...

Page 152: ...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 Figure 4 36 Removing the display mask ...

Page 153: ...ance Manual 4 41 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 ...

Page 154: ...ng 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 Figure 4 37 Removing the LCD module 1 ...

Page 155: ...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 Secure the LCD module bracket to the LCD module with eight M2x3 screws 3 Connect the LCD cable to the FL inverter board 4 Secure the LCD module bracket ...

Page 156: ... 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 Secure one black M2x3 screw connecting the FL inverter board to the LCD display assembly 2 ...

Page 157: ...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 Be careful to align the holes at the four corners of the LCD module with the corresponding holes in the LCD cover before securing the module with screws Do not force the module into place because stress can affect its performance Note The pane...

Page 158: ...reate 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 ...

Page 159: ...e 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 ...

Page 160: ...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 ...

Page 161: ... Maintenance Manual A 5 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 ...

Page 162: ...A 6 TECRA A3 S2 Series Maintenance Manual ...

Page 163: ...TECRA A3 S2 Series Maintenance Manual B 1 Appendix B Appendix B Board Layout B 1 System Board FRDSY Top View Figure B 1 System board FRDSY layout Top ...

Page 164: ...B 2 TECRA A3 S2 Series Maintenance Manual B 2 System Board FRDSY Button View Figure B 2 System board FRDSY layout Button ...

Page 165: ...anual B 3 Table B 1 System board ICs top and bottom Mark Number Name 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 ...

Page 166: ...5 Printer conn JP6 LVDS conn JP7 CPU Stocket JP8 Spearker conn JP10 TV Out JP12 Fan conn JP13 Bluetooth conn JP14 TP conn JP15 JP32 TP conn for Hot bar JP16 USB B conn JP18 HDD conn JP19 PCMCIA Conn JP20 1394 conn JP21 JP22 Audio jack JP23 Docking conn JP24 JP25 DDR conn JP28 Mini PCI conn JP29 5 in 1 conn JP30 MDC conn JP31 ODD conn PJP1 Power core conn PJP2 Battery conn ...

Page 167: ... 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 5VDD O 23 DQ9 I O 24 DQ13 I O 25 DQS1 I O 26 DM1 O 27 VSS 28 VSS 29 DQ10 I O 30 DQ14 I O 31 DQ11 I O 32 DQ15 I O 33 2 5VDD O 34 2 5VDD O 35 CK0 O 36 2 5VDD O 37 CK0 O 38 VSS 39 VSS 40 VSS 41 DQ16 I O 42 DQ20 I O 43 DQ17 I O 44 DQ21 I O 45 2 5VDD O 46...

Page 168: ...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 5VDD O 71 CB0 72 CB4 73 CB1 74 CB5 75 VSS 76 VSS 77 DQS8 78 DM8 79 CB2 80 CB6 81 2 5VDD O 82 2 5VDD O 83 CB3 84 CB7 85 DU 86 DU RESET 87 VSS 88 VSS 89 CK2 90 VSS 91 CK2 92 2 5VDD O 93 2 5VDD O 94 2 5VDD O 95 CKE1 96 CKE0 O 97 DU A13 98 DU BA2 99 A12 100 A11 O 101 A9 O 102 A8 O 103 VSS 104 VSS 105 A7 O 106 A6 O 107 A5 O ...

Page 169: ...4 O 135 DQ34 I O 136 DQ38 I O 137 VSS 138 VSS 139 DQ35 I O 140 DQ39 I O 141 DQ40 I O 142 DQ44 I O 143 2 5VDD O 144 2 5VDD O 145 DQ41 I O 146 DQ45 I O 147 DQS5 I O 148 DM5 O 149 VSS 150 VSS 151 DQ42 I O 152 DQ46 I O 153 DQ43 I O 154 DQ47 I O 155 2 5VDD O 156 2 5VDD O 157 2 5VDD O 158 CK1 O 159 VSS 160 CK1 O 161 VSS 162 VSS 163 DQ48 I O 164 DQ52 I O 165 DQ49 I O 166 DQ53 I O 167 2 5VDD O 168 2 5VDD ...

Page 170: ...PIN 4 4 Pin No 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 3VDD_SPD O 198 SA2 O 199 VDD_ID O 200 DU ...

Page 171: ...5 C 2 JP1 Table C 2 RGB I F pin assignments 15 pin Pin No Signal name I O Pin No Signal Name I O 1 CRT_R O 2 CRT_G O 3 CRT_B O 4 NC 5 GND 6 GND 7 GND 8 GND 9 CRT_VCC 10 GND 11 NC 12 DDC_DATA I O 13 DACA_HSYNC O 14 DACA_VSYNC O 15 DDC_CLK I O ...

Page 172: ...6 I O 39 PDD9 I O 38 PDD5 I O 37 PDD10 I O 36 PDD4 I O 35 PDD11 I O 34 PDD3 I O 33 PDD12 I O 32 PDD2 I O 31 PDD13 I O 30 PDD1 I O 29 PDD14 I O 28 PDD0 I O 27 PDD15 I O 26 GND 25 NC 24 PDDREQ I 23 NC 22 PDIOW O 21 GND 20 PDIOR O 19 GND 18 PDIORDY I 17 PCSEL O 16 PDDACK O 15 GND 14 IRQ14 I 13 NC 12 PDA1 O 11 NC 10 PDA0 O 9 PDA2 O 8 PDCS1 O 7 PDCS3 O 6 PHDD_LED I 5 GND 4 5VS 3 5VS 2 GND 1 NC ...

Page 173: ...O 9 SDD6 I O 10 SDD10 I O 11 SDD5 I O 12 SDD11 I O 13 SDD4 I O 14 SDD12 I O 15 SDD3 I O 16 SDD13 I O 17 SDD2 I O 18 SDD14 I O 19 SDD1 I O 20 SDD15 I O 21 SDD0 I O 22 SDDREQ I 23 GND 24 SDIOR O 25 SDIOW O 26 GND O 27 SIORDY I 28 SDDACK O 29 IRQ15 I 30 NC O 31 SDA1 O 32 5VCD I 33 SDA0 O 34 SDA2 I 35 SDCS1 O 36 SDCS3 37 SHDD_LED I 38 5VCD O 39 5VCD 40 5VCD 41 5VCD 42 5VCD 43 GND 44 GND 45 GND 46 GND ...

Page 174: ...1_A10 I 16 S1_CE2 I O 17 S1_OE I O 18 S1_VS1 I 19 S1_A11 I 20 S1_IORD I O 21 S1_A9 I 22 S1_IOWR I 23 S1_A8 I 24 S1_A17 I 25 S1_A13 I 26 S1_A18 I 27 S1_A14 I 28 S1_A19 I 29 S1_WE I 30 S1_A20 I 31 S1_RDY O 32 S1_A21 I 33 S1_VCC 34 S1_VCC 35 S1_VPP 36 S1_VPP 37 S1_A16 I 38 S1_A22 I 39 S1_A15 I 40 S1_A23 I 41 S1_A12 I 42 S1_A24 I 43 S1_A7 I 44 S1_A25 I 45 S1_A6 I 46 S1_VS2 I 47 S1_A5 I 48 S1_RST I 49 ...

Page 175: ...TECRA A3 S2 Series Maintenance Manual C 9 59 S1_D0 I 60 S1_D8 I O ...

Page 176: ...ssignments 84 pin 2 2 Pin No Signal name I O Pin No Signal Name I O 61 S1_D1 I O 62 S1_D9 I O 63 S1_D2 I O 64 S1_D10 I O 65 S1_WP I O 66 S1_CD2 I 67 GND 68 GND 69 GND 70 GND 71 GND 72 GND 73 GND 74 GND 75 GND 76 GND 77 GND 78 GND 79 GND 80 GND 81 GND 82 GND 83 GND 84 GND ...

Page 177: ... 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 3V O 32 GND 33 AD31 I O 34 WLANME I 35 AD29 I O 36 NC 37 GND 38 AD30 I O 39 AD27 I O 40 3 3V O 41 AD25 I O 42 AD28 I O 43 NC 44 AD26 I O 45 CBE3 I O 46 AD24 I O 47 AD23 I O 48 MINI_IDSEL I O 49 GND 50 GND 51 AD21 I O 52 AD22 I O 53 AD19 I O 54 AD20 I O 55 GND 56 PAR...

Page 178: ...C 12 TECRA A3 S2 Series Maintenance Manual ...

Page 179: ... C BE1 I O 74 GND 75 AD14 I O 76 AD15 I O 77 GND 78 AD13 I O 79 AD12 I O 80 AD11 I O 81 AD10 I O 82 GND 83 GND 84 AD09 I O 85 AD08 I O 86 C BE0 I O 87 AD07 I O 88 3 3V O 89 3 3V O 90 AD06 I O 91 AD05 I O 92 AD04 I O 93 NC 94 AD02 I O 95 AD03 I O 96 AD00 I O 97 5VS_MINIPCI O 98 NC 99 AD01 I O 100 NC 101 GND 102 GND 103 NC 104 NC 105 NC 106 NC 107 NC 108 NC 109 NC 110 NC 111 NC I 112 NC 113 GND 114 ...

Page 180: ...C 14 TECRA A3 S2 Series Maintenance Manual ...

Page 181: ...nel 11 GMCH_LCD_DATA DDC DATA 12 LCDVDD Power for Panel 13 VSS GND 14 VSS GND 15 GMCH_TZOUT0 Panel Data Signals 16 GMCH_TXOUT0 Panel Data Signals 17 GMCH_TZOUT0 Panel Data Signals 18 GMCH_TXOUT0 Panel Data Signals 19 VSS GND 20 VSS GND 21 GMCH_TZOUT1 Panel Data Signals 22 GMCH_TXOUT1 Panel Data Signals 23 GMCH_TZOUT1 Panel Data Signals 24 GMCH_TXOUT1 Panel Data Signals 25 GMCH_TZOUT2 Panel Data Si...

Page 182: ...ID No EDID Panel Detect 40 VSS GND C 8 JP29 Pin No Signal name Pin No 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 4 26 S M xD R B 5 SD WP SW 27 S M xD RE 6 SD DAT1 28 S M xD CE 7 SD DAT0 29 S M xD VCC 8 SD CLK 30 S M CD 9 SD VCC 31 S M xD 03 10 SD CMD 32 S M xD 02 11 SD DAT3 33 S M xD 01 12 SD DAT2 34 S M D0 13 M5 B5 35 S M xD WP IN 14 MS DATA1 36 S M xD WE...

Page 183: ...xD 04 43 SM WP SW 22 S M xD 05 44 5in1 GND C 9 JP12 Table C 9 1 JP12 Fan I F pin assignments 3 pin Pin No Signal name I O Pin No Signal Name I O 1 FAN1 I 2 FAN SPEED1 O 3 GND C 10 PJP1 Table C 10 AC Adaptor Connector pin assignments 3 pin Pin No Signal name I O Pin No Signal Name I O 1 DC_IN_S2 I 2 DC_IN_S2 3 GND 4 GND ...

Page 184: ...pin assignments 6 pin Pin No Signal name I O Pin No Signal Name I O 1 ANGND 2 MIC I 3 BIAS I 4 NC 5 NC 6 ANGND C 12 JP22 Table C 12 Headphone Connector pin assignments 6 pin Pin No Signal name I O Pin No Signal Name I O 1 ANGND 2 INTSPK_L1 O 3 INTSPK_R1 O 4 NBA_PLUG I 5 ANGND 6 NC ...

Page 185: ...26 05 4 05 85 25 F0 25 06 5 06 86 2E F0 2E 07 6 07 87 36 F0 36 08 7 08 88 3D F0 3D 2 09 8 09 89 3E F0 3E 2 10 9 0A 8A 46 F0 46 2 11 0 0B 8B 45 F0 45 12 _ 0C 8C 4E F0 4E 13 0D 8D 55 F0 55 15 BkSp 0E 8E 66 F0 66 16 Tab 0F 8F 0D F0 0D 17 Q 10 90 15 F0 15 18 W 11 91 1D F0 1D 19 E 12 92 24 F0 24 20 R 13 93 2D F0 2D 21 T 14 94 2C F0 2C 22 Y 15 95 35 F0 35 23 U 16 96 3C F0 3C 2 24 I 17 97 43 F0 43 2 25 O...

Page 186: ...A1 2B F0 2B 35 G 22 A2 34 F0 34 36 H 23 A3 33 F0 33 37 J 24 A4 3B F0 3B 2 38 K 25 A5 42 F0 42 2 39 L 26 A6 4B F0 4B 2 40 27 A7 4C F0 4C 2 41 28 A8 52 F0 52 43 Enter 1C 9C 5A F0 5A 3 44 Shift L 2A AA 12 F0 12 45 No 102 key 56 D6 61 F0 61 46 Z 2C AC 1A F0 1A 47 X 2D AD 22 F0 22 48 C 2E AE 21 F0 21 49 V 2F AF 2A F0 2A 50 B 30 B0 32 F0 32 51 N 31 B1 31 F0 31 52 M 32 B2 3A F0 3A 2 53 33 B3 41 F0 41 2 5...

Page 187: ...3 E0 D3 E0 71 E0 F0 71 1 79 E0 4B E0 CB E0 6B E0 F0 6B 1 80 Home E0 47 E0 C7 E0 6C E0 F0 6C 1 81 End E0 4F E0 CF E0 69 E0 F0 69 1 83 E0 48 E0 C8 E0 75 E0 F0 75 1 84 E0 50 E0 D0 E0 72 E0 F0 72 1 85 PgUp E0 49 E0 C9 E0 7D E0 F0 7D 1 86 PgDn E0 51 E0 D1 E0 7A E0 F0 7A 1 89 E0 4D E0 CD E0 74 E0 F0 74 1 110 Esc 01 81 76 F0 76 112 F1 3B BB 05 F0 05 113 F2 3C BC 06 F0 06 114 F3 3D BD 04 F0 04 115 F4 3E B...

Page 188: ... 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 Scan codes differ by mode 2 Scan codes differ by overlay function 3 Combination with the Fn key gives different codes 4 The Fn key does not generate a code by itself 5 This key corresponds to key No 42 in a 102 key model 6 Refer to Table D 6 No 124 key scan code 7 Refer to Table D 7 No 126 k...

Page 189: ...2 83 E0 AA E0 48 E0 C8 E0 2A E0 F0 12 E0 75 E0 F0 75 E0 12 84 E0 AA E0 50 E0 D0 E0 2A E0 F0 12 E0 72 E0 F0 72 E0 12 85 PgUp E0 AA E0 49 E0 C9 E0 2A E0 F0 12 E0 7D E0 F0 7D E0 12 86 PgDn E0 AA E0 51 E0 D1 E0 2A E0 F0 12 E0 7A E0 F0 7A E0 12 89 E0 AA E0 4D E0 CD E0 2A E0 F0 12 E0 74 E0 F0 74 E0 12 X Win E0 AA E0 5B E0 DB E0 2A E0 F0 12 E0 1F E0 F0 1F E0 12 X App E0 AA E0 5D E0 DD E0 2A E0 F0 12 E0 2...

Page 190: ... AA E0 12 E0 75 E0 F0 75 E0 F0 12 84 E0 2A E0 50 E0 D0 E0 AA E0 12 E0 72 E0 F0 72 E0 F0 12 85 PgUp E0 2A E0 49 E0 C9 E0 AA E0 12 E0 7D E0 F0 7D E0 F0 12 86 PgDn E0 2A E0 51 E0 D1 E0 AA E0 12 E0 7A E0 F0 7A E0 F0 12 89 E0 2A E0 4D E0 CD E0 AA E0 12 E0 74 E0 F0 74 E0 F0 12 X Win E0 2A E0 5B E0 DB E0 AA E0 12 E0 1F E0 F0 1F E0 F0 12 X App E0 2A E0 5D E0 DD E0 AA E0 12 E0 2F E0 F0 2F E0 F0 12 Table D ...

Page 191: ...0 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 53 D3 71 F0 71 55 E0 35 E0 B5 40 4A E0 F0 4A Table D 6 No 124 key scan code Code set 1 Code set 2 Key top Shift Make Break Make Break Prt Sc Common E0 2A E0 37 E0 B7 E0 AA E0 12 E0 7C E0 F0 7C E0 F0 12 Ctrl E0 37 E0 B7 E0 7C E0 F0 7C Shift E0 3...

Page 192: ...ies Maintenance Manual Table D 7 No 126 key scan code Code set 1 Code set 2 Key top Shift Make Make Pause Common 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 ...

Page 193: ...TECRA A3 S2 Series Maintenance Manual E 1 Appendix E Appendix E Key Layout E 1 United States US Keyboard Figure E 1 US keyboard ...

Page 194: ...E 2 TECRA A3 S2 Series Maintenance Manual E 2 United Kingdom UK Keyboard Figure E 2 UK keyboard ...

Page 195: ...TECRA A3 S2 Series Maintenance Manual E 3 E 3 Spanish SP Keyboard Figure E 3 SP keyboard E 4 Japanese JA Keyboard Figure E 4 JA keyboard ...

Page 196: ...E 4 TECRA A3 S2 Series Maintenance Manual E 5 Korean KO Keyboard Figure E 5 KO keyboard ...

Page 197: ...TECRA A3 S2 Series Maintenance Manual E 5 E 6 French FR Keyboard Figure E 6 FR keyboard ...

Page 198: ...E 6 TECRA A3 S2 Series Maintenance Manual E 7 French Canadian Keyboard Figure E 7 FR C keyboard E 8 Portuguese Keyboard Figure E8 Portuguese keyboard ...

Page 199: ...TECRA A3 S2 Series Maintenance Manual E 7 E 9 US INTERNATIONAL Keyboard Figure E 9 US INTE Keyboard E 10 Greece GR Keyboard Figure E 10 GR keyboard ...

Page 200: ...E 8 TECRA A3 S2 Series Maintenance Manual E 11 Chinese T Keyboard Figure E 11 CH T keyboard E 12 Swedish Keyboard Figure E 12 Swedish keyboard ...

Page 201: ...TECRA A3 S2 Series Maintenance Manual E 9 E 13 ITALIAN Keyboard Figure E 13 IT keyboard E 14 CZECH Keyboard Figure E 14 Czech keyboard ...

Page 202: ...E 10 TECRA A3 S2 Series Maintenance Manual ...

Page 203: ...0030Z0 M2 0 3 1 LCD CABLE TO COVER 2 0 2 5kg MB ASSY MM000000100 M2 0 4 4 PCMCIA TO MB 1 5 2 0kg MM000000100 M2 0 4 2 BATT CONN TO MB 1 5 2 0kg MM000000100 M2 0 4 2 MB TO CD ROM CONN FIX BAY 1 5 2 0kg HDD ASSY MM000000200 M2 5 3 6 SPECIAL SCREW 4 HDD BRACKET TO HDD LOG UPPER SUB ASSY MMCK25050Z0 M2 5 5 1 HINGE SADDLE R TO TOP SHIELD BATT TO LOG UP 2 5 3 0kg LOG UPPER ASSY MMCK25030Z0 M2 5 3 1 TP B...

Page 204: ......

Page 205: ...D TO VGA BOARD STANDOFF TO MB LOG LOW MMCK25140Z0 M2 5K 5 5 0 8 2 LOG UP TO MB TO LOG LOW MMCK25050Z0 M2 5 5 3 VGA THERMAL SINK TO VGA BOARD 2 5 3 0kg MMCK25050Z0 M2 5 5 1 LOG UP TO VGA BOARD TO VGA BOARD STANDOFF 2 5 3 0kg MMCK25050Z0 M2 5 5 1 LOG LOW TO LOG LOW SHIELD TO HINGE SADDLE R 2 5 3 0kg MMCK25050Z0 M2 5 5 1 LL TO FIX BAT BRK 2 5 3 0kg MMCK25050Z0 M2 5 5 1 LL TO MB TO LU 2 5 3 0kg MMCK25...

Page 206: ...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 6 SPECIAL SCREW 1 MINI PCI BRACKET TO LOG LOW ECTQ0069000 SPECIAL SCREW 1 RAM DOOR TO LOG LOW ...

Page 207: ...ndix G Appendix G Reliability The following table shows MTBF Mean Time Between Failures for each component Table G 1 MTBF Component Time hours LCD 50 000 Keyboard 40 000 HDD 300 000 Removable FDD 30 000 Optical DVD CD drive 60 000 AC adaptor 60 000 ...

Page 208: ...G 2 TECRA A3 S2 Series Maintenance Manual ...

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