Toshiba TECRA A5 Maintenance Manual
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Toshiba TECRA A5, 1 Hardware Overview 1.6 Batteries 1-14 [CONFIDENTIAL] Tecra A5 Maintenance Manual 1.6 Batteries The computer has two types of battery: Main battery pack (18650 size) RTC battery The removable main battery pack is the computer’s main power source when the AC adaptor is not attached. The battery specifications are listed in the table below. Battery name Material Output voltage Capacity Main battery (6 cell) Lithium-Ion 10.8V 4300 mAh Main battery (12 cell) Lithium-Ion 10.8V 8600 mAh RTC battery Lithium 3.0V 15 mAh
1.4 Optical device Drives 1 Hardware Overview Tecra A5 Series Maintenance Manual [CONFIDENTIAL] 1-9 1.4 Optical device Drives 1.4.1 DVD-ROM & CD-RW The DVD-ROM and CD-RW drive accepts 12-cm (4.72-inch) and 8-cm (3.15-inch) discs. At maximum, the drive can play back a DVD at 8x speed, read CD-ROM at 24x speed, and write CD-R at 24x speed and CD-
Toshiba TECRA A5, 3. Tests and Diagnostics The Item2 figure below will be displayed: NOTE: Write speaker EQ must reboot to enable EQ. TECRA A5 Series Maintenance Manual [CONFIDENTIAL] 3-29
Toshiba TECRA A5, 3. Tests and Diagnostics R. The below display will show up at the beginning of T&D program If the test result passes, the following display will show up: TECRA A5 Series Maintenance Manual [CONFIDENTIAL] 3-3
C-26 [CONFIDENTIAL] TECRA A5 Series Maintenance Manual C.24 JP26 Table C-24 MDC Connector pin assignments (30-pin) Pin No. Signal name I/O Pin No. Signal Name I/O 1 NC - 2 NC - 3 5 7 9 11 13 15 17 19 21 23 25 GND NC NC NC NC NC GND +3V_MDC GND +3VS_MDC AC97_SDOUT AC97_RST# - - - - - - - I - I O O
Toshiba TECRA A5, 2 Troubleshooting Procedures TECRA A5 Series Maintenance Manual [CONFIDENTIAL] 2-iii 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 ..........................................................
Toshiba TECRA A5, viii [CONFIDENTIAL] Tecra A5 Maintenance Manual Chapter 3 Tests and Diagnostics 3.1 The Diagnostic Test .........................................................................................................3-1 3.2 Executing the Diagnostic Test..........................................................................................3-2 3.3 Config Check Test............................................................................................................3-6 3.4 DMI Check Test................................................
Toshiba TECRA A5, TECRA A5 Series Maintenance Manual [CONFIDENTIAL] C-21 MRX_N4 GRX_N4 95 GND - 96 GND - 97 PCEI_GTX_C_ MRX_P5 I/O 98 PCIE_MTX_C_ GRX_P5 I/O 99 PCEI_GTX_C_ MRX_N5 I/O 100 PCIE_MTX_C_ GRX_N5 I/O 101 GND - 102 GND - 103 PCEI_GTX_C_ MRX_P6 I/O 104 PCIE_MTX_C_ GRX_P6 I/O 105 PCEI_GTX_C_ MRX_N6 I/O 106 PCIE_MTX_C_ GRX_N6 I/O 107 GND - 108 GND - 109 PCEI_GTX_C_ MRX_P7 I/O 110 PCIE_MTX_C_ GRX_P7 I/O
Toshiba TECRA A5, 2 Troubleshooting Procedures 2-20 [CONFIDENTIAL] TECRA A5 Series Maintenance Manual 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. Perform Check 1: Check 1 Make sure TV cable is firmly plugged into bot
Toshiba TECRA A5, 4 Replacement Procedures 4.9 Bluetooth module Removing the Bluetooth Module Remove the battery and any optional devices before removing the wireless LAN unit. In addition, you have to remove the keyboard as described in the previous section to access the Bluetooth module. Follow these instructions: 1. Remove the black M2.5x3 screw securing the Bluetooth module to the system board. Figure 4-21 Removing the Bluetooth module screw 2. Disconnect the Bluetooth FFC cable from the system board. Figure 4-22
Toshiba TECRA A5, 1.1 Features 1 Hardware Overview Tecra A5 Series Maintenance Manual [CONFIDENTIAL] 1-1 1.1 Features The Tecra A5 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 Pentium-M Dothan 1.6GHz, 1.73GHz, 1.86GHz, 2.0GHz, and 2.13GHz • Intel Celeron-M Dothan 1.3GHz, 1.4GHz, and 1.5GHz • FCPGA CPU
Toshiba TECRA A5, TECRA A5 Series Maintenance Manual [CONFIDENTIAL] C-17 103 NC 104 NC 105 GND 106 NC Table C-18 Docking I/F pin assignments (240-pin) (3/4) Pin No. Signal name I/O Pin No. Signal Name I/O 107 NC 108 NC 109 GND 110 NC 111 NC 112 NC 113 NC 114 NC 115 NC 116 NC 117 NC 118 NC 119 NC 120 NC 121 DKN_B+ 122 DKN_B+ 123 D_EC_SMB_C K2 124 +5VS 125 +5VALW 126 TPA1+ 127 GND 128 TPB1+ 129 NC 130 NC 131 GND 132 NC 133 NC 134 AUD_SUDMU T_P3# 135 NC 136 LINEOL 137 LINEIL 138 LINEIR# 13
Toshiba TECRA A5, 2 Troubleshooting Procedures TECRA A5 Series Maintenance Manual [CONFIDENTIAL] 2-21 2.8 TouchPad Troubleshooting START END TouchPad connection check (Procedure 1) TouchPad replacement check (Procedure 2) Replace system board Figure 2-8 TouchPad troubleshooting process
Toshiba TECRA A5, 2 Troubleshooting Procedures 2.10 Optical Drive Troubleshooting START Audio CD functions ok? END Perform software check (Procedure 3) Perform diagnostic test (Procedure 4) Perform connection and replacement check (Procedure 5) Perform audio CD check (Procedure 1) Perform drive- cleaning check (Procedure 2) No Yes Replace system board Figure 2-10 Optical drive troubleshooting process TECRA A5 Series Maintenance Manual [CONFIDENTIAL] 2-25
Toshiba TECRA A5, TECRA A5 Series Maintenance Manual [CONFIDENTIAL] C-13 C.13 JP13 Table C-13 Serial port pin assignments (10-pin) Pin No. Signal name I/O Pin No. Signal Name I/O 1 +5VS - 2 GND - 3 RXD1 I 4 TXD1 O 5 DSR#1 I 6 RTS#1 O 7 CTS#1 I 8 DTR#1 O 9 RI#1 I 10 DCD#1 I C.14 JP14 Table C-14EC tool pin assignments (4-pin) Pin No. Signal name I/O Pin No. Signal Name I/O 1 +5VALW - 2 E51_RXD I 3 E51_TXD O 4 GND - C.15 JP15 Table Audio jack (headphone) pin assignments (6-pin) Pin No. Signal name I/O Pin N
Toshiba TECRA A5, E-6 [CONFIDENTIAL] TECRA A5 Series Maintenance Manual Figure E-9 GR keyboard E.10 France (FR) Keyboard Figure E-10 FR keyboard
Toshiba TECRA A5, 4 Replacement Procedures TECRA A5 Series Maintenance Manual [CONFIDENTIAL] 4-51 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. Take care to align all the ports and connectors in their respective openings on the chassis. 2. Replace the three M2.5x6 screws to secure the system board. 3. Connect the CRT, USB, and modem cables. 4. Connect the power connector.
Toshiba TECRA A5, TECRA A5 Series Maintenance Manual [CONFIDENTIAL] G-1 Appendix G Appendix G Reliability The following table shows MTBF (Mean Time ach component. Table G-1 MTB ent Time ) Between Failures) for e F Compon (hours LCD 50,000 Keyboard 40,000 HDD 300,000 Removable FDD 30,000 Optical (DVD/CD) drive 60,000 AC adaptor 60,000
TECRA A5 Series Maintenance Manual [CONFIDENTIAL] A-5 7. dule to direct sunlight or strong ultraviolet rays for long periods. Do not expose the mo 8. Do not store the module at temperatures below its specifications. Cold can cause the liquid crystals to freeze, lose their elasticity or otherwise su
Toshiba TECRA A5, TECRA A5 Series Maintenance Manual [CONFIDENTIAL] C-27 C.25 JP27 Table C-27 5-IN-1 Card readerI/F pin assignments (40-pin) Pin No. Signal name I/O Pin No. Signal Name I/O 1 GND - 2 MSBS_SDCM D_SMWE2 I/O 3 MSDATA1_SD DATA1_SMD1 I/O 4 MSDATA0_SD DATA0_SMD0 I/O 5 MSDATA2_SD DATA2_SMD2 I/O 6 MSCD# I 7 MSDATA3_SD ATA3_SMD3 I/O 8 MSCLK_SDCL K I/O 9 +VCC_5IN1 - 10 GND - 11 MSDATA2_SD DAT2_SMD2 I/O 12 MSDATA3_SD DAT3_SMD3 I/O 13 MSBS_SDCM D_SMWE2 O 14 GND - 15 +VCC_5IN1 - 16 MSCLK_SDCL K O 17 GND - 18 NC - 19 MSDATA0_SD DAT0_SMD0 I/O 20 MSDATA1_SD DATA1_SMD1 I/O
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