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Toshiba Satellite U840 Maintenance Manual

Toshiba Satellite U840 Maintenance Manual

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Chapter 1
Hardware Overview
Satellite U840 Maintenance Manual (960-Q08)

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Summary of Contents for Toshiba Satellite U840

  • Page 1 Chapter 1 Hardware Overview Satellite U840 Maintenance Manual (960-Q08)

  • Page 2: Table Of Contents

    2.5-inch Hard Disk Drive ....................8 Keyboard ........................10 TFT Color Display .......................12 1.6.1 LCD Module With LED Backlight ............12 Power Rails ........................15 Batteries ........................16 1.8.1 Main Battery ...................16 1.8.2 Battery Charging Control ...............17 1.8.3 RTC battery ....................18 AC Adapter ........................19 Satellite U840 Maintenance Manual (960-Q08)
  • Page 3 Battery specifications ..................16 Table 1-13 Time required for charges of main battery ............17 Table 1-14 Data preservation time ..................17 Table 1-15 Time required for charges of RTC battery ............18 Table 1-16 AC adapter specifications ................19 Satellite U840 Maintenance Manual (960-Q08)

  • Page 4: Features

    Chapter 1 Hardware Overview Features 1.1 Features The Satellite U840 (Intel Platform) features are listed below. Microprocessor Microprocessor that is used will be different by the model. It supports processors as follows 1. Intel Sandy Bridge ULV series I3-2357M 1.30 GHz I3-2367M 1.40 GHz...
  • Page 5 USB Sleep and Charge function. Sound system Internal stereo speaker, Internal MIC, external monaural microphone connector, stereo headphone connector. Wireless LAN The wireless LAN is equipped on the mini card slot. Satellite U840 Maintenance Manual (960-Q08)
  • Page 6 Connectors for LAN is separately mounted. Bridge media slot XD /SD/MMC are supported Bluetooth Some computers in this series offer Bluetooth wireless communication functionality. Security Kensington Lock HDD Password HDD security function Webcam Supporting camera module Satellite U840 Maintenance Manual (960-Q08)

  • Page 7: Figure 1-1-1 Top View

    Chapter 1 Hardware Overview Figure 1-1-1 Top View Figure 1-1-2 Bottom View Satellite U840 Maintenance Manual (960-Q08)

  • Page 8: System Block Diagram

    Chapter 1 Hardware Overview 1.2 System Block Diagram Figure 1-2 shows the system block diagram. Figure 1-2 System block diagram for Intel Platform Satellite U840 Maintenance Manual (960-Q08)
  • Page 9 1.8GHz I3-33I7U 1.7GHz I5-3427 1.7GHz Memory Two memory slots capable of accepting DDRIII-SDRAM,1GB, 2GB or 4GB memory modules for a maximum of 8GB. • 204-pin SO-DIMM • 1.5V operation BIOS ROM (Flash memory) • 32Mbit Satellite U840 Maintenance Manual (960-Q08)
  • Page 10  • HD Audio (CONEXANT CX20671-21Z)  • Card Reader controller (Alcor AU6437B53-GDL-GR)  • 10/100 LAN controller (Atheros AR8152) Mini Card Wireless LAN card Half size PCIe-mini card 802.11bg 1x1/ 802.11bgn 1x1 802.11bg 1x2/ 80211bgn 1x2/ 802.11bgn 2x2 Satellite U840 Maintenance Manual (960-Q08)
  • Page 11 Chapter 1 Hardware Overview Support Wimax Bluetooth Bluetooth V3.0 + EDR (BT combo module with WLAN) Satellite U840 Maintenance Manual (960-Q08)

  • Page 12: Inch Hard Disk Drive

    Depth (mm) 100.2 +/- 0.25 ions Weight (g) 95 Max Parameter Standard value Seagate HDD ST320LT020 9YG142-150 70.10 Max Width (mm) Outlin 7.0 Max Height (mm) dimen 100.55 Max Depth (mm) sions 92 Max Weight (g) Satellite U840 Maintenance Manual (960-Q08)

  • Page 13: Table 1-3 2.5-Inch Hdd Specifications

    (read) (ms) Power-on-to-ready (sec) Specification Parameter Seagate HDD ST320LT020 9YG142-150 Storage size 320G (formatted) Speed (RPM) 5,400 Data transfer Rate 1044Mb Max bus transfer rate (MB/s) 3.0Gbps Average random seek 11ms time (read) (ms) Power-on-to-ready (sec) Satellite U840 Maintenance Manual (960-Q08)

  • Page 14: Keyboard

    UK style. Figure 1-5 is a view of the keyboard for US style Figure 1-5 Keyboard for US style Figure 1-6 is a view of the keyboard for UK style Figure 1-6 Keyboards for UK style Satellite U840 Maintenance Manual (960-Q08)
  • Page 15 Chapter 1 Hardware Overview Figure 1-7 is a view of the keyboard for JP style Figure 1-7 Keyboards for style See Appendix E for details of the keyboard layout Satellite U840 Maintenance Manual (960-Q08)

  • Page 16: Tft Color Display

    The Satellite U830 Panel use LED to control backlight. 1.6.1 LCD Module with CCFL Backlight Figure 1-7 shows a view of the LCD module and Table 1-9 lists the specifications. Figure 1-7 SAMSUNG LCD Module Satellite U840 Maintenance Manual (960-Q08)

  • Page 17: Table 1-9 Lcd Module Specifications

    Specifications Samsung Item B140XW03 LTN140AT20 N140BGE LP140WH2-TLE2 Number of Pixel 1366 X 768 1366 X 768 1366 X 768 1366 X 768 0.2265 0.2265 Dot spacing (mm) 0.2265 0.2265 Display Colors 262K 262144 262,144 62,144 Satellite U840 Maintenance Manual (960-Q08)
  • Page 18 Chapter 1 Hardware Overview Satellite U840 Maintenance Manual (960-Q08)

  • Page 19: Power Rails

    Power supply （ （ （ （ Yes/No） ） ） ） Name Power OFF Power OFF Voltage [V] No Battery Suspend mode Boot mode +5VPCU +3VPCU +3V_S5 +3VSUS +1.5VSUS 0.75 +SMDDR_VTERM +SMDDR_VREF 0.75 LCD_BK_POWER +1.8V +1.5V +15V +1.05v 1.05 1.05VSUS 1.05 VAXG 0V~1.52 VCC_CORE 0.3V~1.52 Satellite U840 Maintenance Manual (960-Q08)

  • Page 20: Batteries

    Table 1-12 Battery specifications 1.8.1 Main Battery The main battery is the primary power supply for the computer when the AC adapter is not connected. In Standby, the main battery maintains the current status of the computer. Satellite U840 Maintenance Manual (960-Q08)

  • Page 21: Battery Charging Control

    Table 1-14. Table 1-14 Data preservation time Condition preservation time Standby About 3 days Hibernation About 1 month Battery 6 cell Approximately 3 days(sleep mode) Pack Approximately 1 month(shutdown mode,All type of battery pack Satellite U840 Maintenance Manual (960-Q08)

  • Page 22: Rtc Battery

    Table 1-15 lists the Time required for charges of RTC battery and data preservation time. Table 1-15 Time required for charges of RTC battery Condition Time Power ON (Lights Power LED) About 24 hours Data preservation tome (Full-charged) About a month Satellite U840 Maintenance Manual (960-Q08)

  • Page 23: Ac Adapter

    Table 1-16 lists the AC adapter specifications. Table 1-16 AC adapter specifications Parameter Specification Chicony Acbel With Led Power Input voltage AC 100V/240V Input frequency 50Hz/60Hz ≦1.3A Input current Output voltage DC 19V Output current 2.37A 2.37A Satellite U840 Maintenance Manual (960-Q08)
  • Page 24 Chapter 2 Troubleshooting Procedures Satellite U840 Maintenance Manual (960-Q08)
  • Page 25 Procedure 1 Diagnostic Test Program Execution Check ......24 Procedure 2 Connector Check and Replacement Check ......25 Touch pad Troubleshooting ..................26 Procedure 1 Diagnostic Test Program Execution Check ......26 Procedure 2 Connector Check and Replacement Check ......27 Satellite U840 Maintenance Manual (960-Q08)
  • Page 26 2.11 Wireless LAN Troubleshooting ...................32 Procedure 1 Transmitting-Receiving Check ..........32 Procedure 2 Antennas' Connection Check ...........33 Procedure 3 Replacement Check ..............34 2.12 Sound Troubleshooting ....................35 Procedure 1 Connector Check ..............35 Procedure 2 Replacement Check ..............36 Satellite U840 Maintenance Manual (960-Q08)

  • Page 27: Troubleshooting

    Appendix H “EC/KBC Rewrite Procedures” to set the SVP parameter. The implement for the Diagnostics procedures is referred to Chapter 3. Also, following implements are necessary: 1. Phillips screwdrivers (For replacement procedures) 2. Implements for debugging port check • Toshiba Free-DOS system Satellite U840 Maintenance Manual (960-Q08)
  • Page 28 There are following two types of connections in the figure of board and module connection in and after 2.3 Power Supply Troubleshooting. (1) Cable connection is described in the figure as line. (2) Pin connection is described in the figure as arrow. <e.g.> Connection of LAN Satellite U840 Maintenance Manual (960-Q08)

  • Page 29: Troubleshooting Flowchart

    Before going through the flowchart steps, verify the following: Ask customer to enter the password if a password is registered. Verify with the customer that Toshiba Windows is installed on the hard disk. Non- Windows operating systems can cause the computer to malfunction.
  • Page 30 2 Troubleshooting Procedures Figure 2-1 Troubleshooting flowchart (1/2) Satellite U840 Maintenance Manual (960-Q08)
  • Page 31 2 Troubleshooting Procedures Figure 2-1 Troubleshooting flowchart (2/2) Satellite U840 Maintenance Manual (960-Q08)
  • Page 32 9. If an error is detected on the wireless LAN/Bluetooth test, perform the Wireless LAN/Bluetooth Troubleshooting Procedures in Section 2.11. 10. If an error is detected on the sound test, perform the Sound Troubleshooting Procedures in Section 2.12. Satellite U840 Maintenance Manual (960-Q08)

  • Page 33: Power Supply Troubleshooting

    The battery level is low while the system power is ON. (even intervals) Blinks orange once The system is driven by only a battery and the battery level (at being switched on) is low. Light White The system is driven by only a battery. Satellite U840 Maintenance Manual (960-Q08)
  • Page 34 Check 2 If the DC IN icon does not light, go to Procedure 3. Check 3 If the battery icon does not light orange or green, go to Procedure 4. NOTE: Use a supplied AC adapter. Satellite U840 Maintenance Manual (960-Q08)

  • Page 35: Procedure 2 Connection Check

    AC adapter. If the battery pack is still not charged, go to Check 4. Check 4 The battery’s temperature is too high or low. Leave the battery for a while to Satellite U840 Maintenance Manual (960-Q08)
  • Page 36 If the battery pack is still not charged, go to Check 5. Check 5 Replace the battery pack with a new one. If the battery pack is still not charged, go to Procedure 4. Satellite U840 Maintenance Manual (960-Q08)

  • Page 37: Procedure 4 Replacement Check

    (When driving with battery pack) Check 1 Battery pack may be faulty. Replace it with a new one. If the problem still occurs, perform Check 2. Check 2 System board may be faulty. Replace it with a new one. Satellite U840 Maintenance Manual (960-Q08)

  • Page 38: System Board Troubleshooting

    This section describes how to determine if the system board is malfunctioning or not. Start with Procedure 1 and continue with the other procedures as instructed. The procedures described in this section are: Procedure 1: Message Check Procedure 2: Diagnostic Test Program Execution Check Procedure 3: Replacement Check Satellite U840 Maintenance Manual (960-Q08)

  • Page 39: Procedure 1 Message Check

    If you press the F2 key as the message instructs, the SETUP screen appears to set the system configuration. If error message (b) appears often when the power is turned on, replace the RTC battery. Satellite U840 Maintenance Manual (960-Q08)

  • Page 40: Procedure 2

    If an error is detected during these tests, go to Procedure 3. Procedure 3 Replacement Check System board may be faulty. Disassemble the computer following the steps described in Chapter 4, Replacement Procedures and replace system board with a new one. Satellite U840 Maintenance Manual (960-Q08)

  • Page 41: Usb Fdd Troubleshooting

    Procedure 2. Detailed operation is given in Chapter 3, Tests and Diagnostics. If the test program cannot be executed on the computer, go to Procedure 3. Satellite U840 Maintenance Manual (960-Q08)

  • Page 42: Diagnostic Test Program Execution Check

    “write enable”. If any other message appears, perform Check 2. Write protected Check 2 Make sure the floppy disk is formatted correctly. If it is, go to Procedure 3. Satellite U840 Maintenance Manual (960-Q08)

  • Page 43: Procedure 3 Connector Check And Replacement Check

    NOTE: When checking the connection, be sure to check it with care for the followings. 1. Cable can not be disconnected from the connector. 2. Cable is connected straight to the connector. 3. Cable is connected all the way seated in the connector. 4. Cable can not be broken. Satellite U840 Maintenance Manual (960-Q08)
  • Page 44 USB board may be faulty. Replace it with a new one following the steps in Chapter 4, Replacement Procedures. Check 5 System board may be faulty. Replace it with a new one following the steps in Chapter 4, Replacement Procedures. Satellite U840 Maintenance Manual (960-Q08)

  • Page 45: Ssd/2.5" Hdd Troubleshooting

    User’s Manual. Procedure 1 Partition Check Insert the Toshiba MS-DOS system disk and start the computer. Perform the following checks: Check 1 Input C: and press Enter. If you cannot change to drive C, go to Check 2. If you can change to drive C, go to Procedure 2.

  • Page 46: Procedure 2 Message Check

    SSD/2.5” HDD(s) and the connector(s) of system board may be defective (Refer to the steps described in Chapter 4, Replacement Procedures for disassembling.). Insert SSD/HDD(s) to the connector(s) firmly. If it is (or they are) firmly connected, go to Procedure 3. Satellite U840 Maintenance Manual (960-Q08)

  • Page 47: Procedure 3 Format Check

    Using the Diagnostic Disk, format SSD/2.5” HDD with a format option (physical format). If SSD/HDD is formatted, set the SSD/2.5” HDD partition using Free - DOS FDISK command. If you cannot format SSD/2.5” HDD using the Tests and Diagnostic program, go to Procedure 4. Satellite U840 Maintenance Manual (960-Q08)

  • Page 48: Procedure 4 Diagnostic Test Program Execution Check

    The error codes and statuses are described in Table 2-8. If an error code is not displayed but the problem still occurs, go to Procedure 5. Table 2-3 2.5” Hard disk drive error code and status Satellite U840 Maintenance Manual (960-Q08)

  • Page 49: Procedure 5 Connector Check And Replacement Check

    Chapter 4, Replacement Procedures and check the operation. If the problem still occurs, perform Check 3. Check 3 System board may be faulty. Replace it with a new one following the instructions in Chapter 4, Replacement Procedures. Satellite U840 Maintenance Manual (960-Q08)

  • Page 50: Keyboard Troubleshooting

    ONE TEST) in the Diagnostic Program, check if the LED backlight is lighted . Refer to Chapter 3, Tests and Diagnostics, for more information on how to perform the test program. If an error occurs, go to Procedure 2. If an error does not occur, keyboard is functioning properly. Satellite U840 Maintenance Manual (960-Q08)
  • Page 51 Keyboard may be faulty. Replace it with a new one following the instructions in Chapter 4, Replacement Procedures. If the problem still occurs, perform Check 3. Check 3 System board may be faulty. Replace it with a new one following the instructions in Chapter 4, Replacement Procedures. Satellite U840 Maintenance Manual (960-Q08)

  • Page 52: Touch Pad Troubleshooting

    Execute the Touch pad test (ONLY ONE TEST) in the Diagnostic Program. Refer to Chapter 3, Tests and Diagnostics, for more information on how to perform the test program. If an error occurs, go to Procedure 2. If an error does not occur, touch pad is functioning properly. Satellite U840 Maintenance Manual (960-Q08)
  • Page 53 Chapter 4, Replacement Procedures. If the problem still occurs, perform Check 3. Check 3 System board may be faulty. Replace it with a new one following the instructions in Chapter 4, Replacement Procedures Satellite U840 Maintenance Manual (960-Q08)

  • Page 54: Display Troubleshooting

    The Display Test program is stored in Diagnostics disk. This program checks the display controller on system board. Insert the Diagnostics disk, turn on the computer and run the test. Refer to Chapter 3, Tests and Diagnostics for details. If an error is detected, go to Procedure 3. Satellite U840 Maintenance Manual (960-Q08)
  • Page 55 LCD Module is connected to system board by an LCD cable.Disassemble the computer following the steps described in Chapter 4, Replacement Procedures. If the connection is loose, reconnect firmly and restart the computer. If the problem still occurs, go to Procedure 4. Satellite U840 Maintenance Manual (960-Q08)
  • Page 56 Chapter 4, Replacement Procedure and test the display again. If the problem still occurs, perform Check 3. Check 3 System board may be faulty. Replace it with a new one following the instructions in Chapter 4, Replacement Procedure. Satellite U840 Maintenance Manual (960-Q08)

  • Page 57: Procedure 2 Connector Check And Replacement Check

    USB board may be faulty. Replace it with a new one. If the problem still occurs, perform Check 4. Check 4 system board may be faulty. Replace it with a new one following the instruction in Chapter 4. Satellite U840 Maintenance Manual (960-Q08)

  • Page 58: Procedure 1 Transmitting-Receiving Check

    LAN/Bluetooth. Perform the test following the instructions described in Chapter 3. If the computer passes the test, the function is correctly working. If the computer does not pass the test, perform Procedure 2. Satellite U840 Maintenance Manual (960-Q08)
  • Page 59 Wireless LAN/Bluetooth card. If wireless LAN/Bluetooth antenna cables are not connected properly, connect them firmly and perform Procedure 1. If the problem still occurs, go to the procedure 3. Satellite U840 Maintenance Manual (960-Q08)
  • Page 60 Chapter 4, Replacement Procedures. If the problem still occurs, perform Check 3. Check3 System board may be faulty. Replace it with a new one following the instructions in Chapter 4, Replacement Procedures. Satellite U840 Maintenance Manual (960-Q08)

  • Page 61: Sound Troubleshooting

    Connector Check The connection of sound system is shown in the following figure. As the connection may be defective, disassemble the PC and check each connection. If the problem still occurs, go to Procedure 2. Satellite U840 Maintenance Manual (960-Q08)
  • Page 62 HP out may be faulty. Replace it with a new one following the steps in Chapter 4. If the problem still occurs, perform Check 4. Check 4 System board may be faulty. Replace it with a new one following the instructions in Chapter 4. Satellite U840 Maintenance Manual (960-Q08)
  • Page 63 Test Program for Field. Chapter 3 Diagnostic Programs Satellite U840 Tests and Diagnostics Manual...
  • Page 64 How to operate a window ................3-63 3.21.2 How to Stop the Test Program ..............3-63 3.21.3 Test Status Screen ..................3-63 3.21.4 Test Stop Display ..................3-65 3.21.5 How to enter data ..................3-65 Satellite U840 Tests and Diagnostics Manual...

  • Page 65: Tests And Diagnostics Software Overview

    Test Program for Field. Tests and Diagnostics Software Overview This chapter explains how to use the Tests and Diagnostics Software for the Satellite U840 computer systems. NOTES: Before starting the Tests and Diagnostics software: 1. Check all cables for loose connections.

  • Page 66: Executing The Diagnostic Test

    02.RUNNING TEST 03.DMI INFORMATION 04.LOG UTILITIES 05.SYSTEM CONFIGURATION 06.OPTION 99.EXIT 3. To select the Diagnostic Test from the Diagnostics Menu use the arrow keys to set the highlight bar to 01 and press Enter. Satellite U840 Tests and Diagnostics Manual...
  • Page 67 Refer to Sections 3.4 through 3.14 for detailed descriptions of Diagnostics Tests 1 through 11. Item 88 sets the floppy disk drive and hard disk drive error retry count. Item 99 exits the submenu of the Diagnostic Test and returns to the Diagnostics Menu. Satellite U840 Tests and Diagnostics Manual...
  • Page 68 04. DISPLAY TEST 12. MULTIMEDIA TEST 05. FLOPPY DISK TEST 13. USB TEST 06. HARD DISK TEST 14. MEMORY2 TEST 07. REAL TIME CLOCK TEST 88. FDD&HDD ERROR RETRY COUNT SET 99. EXIT TO DIAGNOSTICS MENU Satellite U840 Tests and Diagnostics Manual...
  • Page 69 Use the arrow keys to move the cursor to the desired option and press Enter. Table 3-1 in Section 3.3 lists the function of each test on the subtest menu. Table 3-2 in Section 3.15 lists the error codes and error status for each error. Satellite U840 Tests and Diagnostics Manual...

  • Page 70: Subtest Names

    Character Set 80* 25 Character Display 320* 200 Graphics Display 640* 200 Graphics Display 640* 480 Graphics Display Display Page “H” Pattern Display Video DAC Register W/R/C Color Graphics Display Color Attributes Display Color Tiling Satellite U840 Tests and Diagnostics Manual...
  • Page 71 Checker Board Test Marching Test Working Data Test HIGH RESOLUTION VRAM W/R/C Test DISPLAY TEST 640* 480 Mode Display 800* 600 Mode Display 1024* 768 Mode Display “H” Pattern Display Focus Test (“E” Pattern) Satellite U840 Tests and Diagnostics Manual...
  • Page 72 Sequential Read Test Random Read Test Read Specified Address Test 1 point W/R/C Test MEMORY2 All one/zero Test Walking 1/Walking 0 Test(Left) Walking 1/Walking 0 Test(Right) Walking 1/Walking 0 Test(Left /Right) *This test cannot support. Satellite U840 Tests and Diagnostics Manual...

  • Page 73: System Test

    : 7310 mAh Device chemistry : LION design voltage : 7400 mV Manufacturer data specification information : 3.1 Manufacture date : 11/16/2011 serial no. : 107 STATUS : INIT DISK FULL_CHG Press [ESC] KEY to exit Satellite U840 Tests and Diagnostics Manual...
  • Page 74 [CPU_TEMP.EXE] Program Version : 1.3 03-09-2009 CPU Temperature : XX GPU Temperature : XX NOTES: If no external Graphics , GPU not report temperature . when read data is 255 mean no external Graphics . Satellite U840 Tests and Diagnostics Manual...

  • Page 75: Memory Test

    Test data = 1H, 2H, 4H, 8H, 10H, through 80000000H. 4. Fixed data test “16 bit write/ 16 bit read” is executed and the new data is compared to the original data. Test data = FFFFFFFFH, 00000000H, 80018001H Satellite U840 Tests and Diagnostics Manual...
  • Page 76 Test data = 0000H, 0004H, 0008H, 000CH,...8000H, 8004H, through FFECH Subtest 03 Protected Mode [32MB - MAX] This subtest first writes data patterns and address data from 32MB to the maximum installed memory, reads the new data, and then compares the result Satellite U840 Tests and Diagnostics Manual...
  • Page 77 This subtest writes a data pattern (CCAA5533H ) in 4KB from 0 to the maximum installed memory, then waits for a memory refresh cycle (16 ms or more), reads the new data, and compares the result with the original data pattern. Satellite U840 Tests and Diagnostics Manual...
  • Page 78 Subtest 05 Stress Test This subtest writes the following 16KB data patterns to the Write/Read Buffer in conventional memory. data: FFFFFFFFFFFFFFFF0000000000000000 5555555555555555AAAAAAAAAAAAAAAA CCCCCCCCCCCCCCCC3333333333333333 0000000000000000FFFFFFFFFFFFFFFF AAAAAAAAAAAAAAAA5555555555555555 3333333333333333CCCCCCCCCCCCCCCC FFFFFFFFFFFFFFFF0000000000000000 0000000000000000FFFFFFFFFFFFFFFF 5555555555555555AAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAA5555555555555555 CCCCCCCCCCCCCCCC3333333333333333 3333333333333333CCCCCCCCCCCCCCCC Satellite U840 Tests and Diagnostics Manual...

  • Page 79: Keyboard Test

    This subtest is used for the UK keyboard and functions the same as Subtest 1. Subtest 03 Pressed Key Display [US Keyboard] for US Keyboard This subtest is used for the US keyboard and functions the same as Subtest 1. Satellite U840 Tests and Diagnostics Manual...
  • Page 80 If left and right button short , screen will display <Left and Right Button maybe short > , the program exit . LEFT PRESS TOUCH_PAD TEST RIGHT PRESS Please Do Not Press the Left and Right Button At The Same Time Satellite U840 Tests and Diagnostics Manual...

  • Page 81: Display Test

    NEXT LINE SHOWS REVERSE DISPLAY RRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRR RRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRR NEXT LINE SHOWS BLINKING DISPLAY BBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB BLUE MAGENTA GREEN CYAN YELLOW WHITE Press [ Enter ] KEY To exit this subtest and return to the Display Test menu: Satellite U840 Tests and Diagnostics Manual...
  • Page 82 To exit this subtest and return to the Display Test menu: Press Enter if NO was selected for Test Loop on the Test Parameter Menu. Press Ctrl + break if YES was selected for Test Loop on the Test Parameter Menu. Satellite U840 Tests and Diagnostics Manual...
  • Page 83 To exit this subtest and return to the Display Test menu: Press Enter if NO was selected for Test Loop on the Test Parameter Menu. Press Ctrl + break if YES was selected for Test Loop on the Test Parameter Menu. Satellite U840 Tests and Diagnostics Manual...
  • Page 84 MAGENTA WHITE Press ENTER to display the following sixteen colors: black, blue, green, cyan, red, magenta, brown, white, dark gray, light blue, light green, light cyan, light red, light magenta, yellow, and intensified white. Satellite U840 Tests and Diagnostics Manual...
  • Page 85 To exit this subtest and return to the Display Test menu: Press Enter if NO was selected for Test Loop on the Test Parameter Menu. Press Ctrl + break if YES was selected for Test Loop on the Test Parameter Menu. Satellite U840 Tests and Diagnostics Manual...
  • Page 86 To exit this subtest and return to the Display Test menu: Press Enter if NO was selected for Test Loop on the Test Parameter Menu. Press Ctrl + break if YES was selected for Test Loop on the Test Parameter Menu. Satellite U840 Tests and Diagnostics Manual...
  • Page 87 Press ENTER to display the following 16 colors: black, blue, green, cyan, red, magenta, brown, white, dark gray, light blue, light green, light cyan, light red, light magenta, yellow, and intensified white using 640*480 video resolution. Satellite U840 Tests and Diagnostics Manual...
  • Page 88 To exit this subtest and return to the Display Test menu: Press Enter if NO was selected for Test Loop on the Test Parameter Menu. Press Ctrl + break if YES was selected for Test Loop on the Test Parameter Menu. Satellite U840 Tests and Diagnostics Manual...
  • Page 89 To exit this subtest and return to the Display Test menu: Press Enter if NO was selected for Test Loop on the Test Parameter Menu. Press Ctrl + break if YES was selected for Test Loop on the Test Parameter Menu. Satellite U840 Tests and Diagnostics Manual...
  • Page 90 ” displays on the screen and then the screen flickers due will remain blank to the fast screen refresh while the test is executing. Press Ctrl + break to return to the Display Test menu. Satellite U840 Tests and Diagnostics Manual...
  • Page 91 To exit this subtest and return to the Display Test menu: Press Enter if NO was selected for Test Loop on the Test Parameter Menu. Press Ctrl + break if YES was selected for Test Loop on the Test Parameter Menu. Satellite U840 Tests and Diagnostics Manual...
  • Page 92 640*480 COLOR ATTRIBUTE DISPLAY Press [Enter] Key Pressing Enter executes VRAM mapping test which indicates vertical lines Press Enter to execute the VRAM mapping test which displays a horizontal line at one dot intervals using Mode 12. Satellite U840 Tests and Diagnostics Manual...
  • Page 93 Press Enter to execute the VRAM mapping test which displays a vertical line at four dot intervals using Mode 12. Press [Enter] Key Press Enter to display VRAM mapping test using the all dots Mode. Satellite U840 Tests and Diagnostics Manual...
  • Page 94 To exit this subtest and return to the Display Test menu: Press Enter if NO was selected for Test Loop on the Test Parameter Menu. Press Ctrl + break if YES was selected for Test Loop on the Test Parameter Menu. Satellite U840 Tests and Diagnostics Manual...
  • Page 95 To exit this subtest and return to the Display Test menu: Press Enter if NO was selected for Test Loop on the Test Parameter Menu. Press Ctrl + break if YES was selected for Test Loop on the Test Parameter Menu. Satellite U840 Tests and Diagnostics Manual...

  • Page 96: Floppy Disk Test

    Subtest 03 Random Address/Data This subtest writes random data to random addresses on all tracks defined in Subtest 01. The data is then read and compared to the original data. Satellite U840 Tests and Diagnostics Manual...
  • Page 97 This subtest reads data from a specified track and head. The following message displays on the screen to enter the test track number and head number. TRACK NO (00~79) ?? HEAD NO (0~1) ? Satellite U840 Tests and Diagnostics Manual...

  • Page 98: Hard Disk Test

    • Reverse sequential • Random Subtest 03 Random Address Data This subtest writes random data to 1000 different random addresses on the HDD. This data is then read and compared to the original data. Satellite U840 Tests and Diagnostics Manual...
  • Page 99 3.18) to specify the LBA number where the error(s) occurred during Subtest 01. The following message displays on the screen to enter the test sector count. SECTOR COUNT (01~39) ?? START ADDRESS (00000000~MAX Address) ? Satellite U840 Tests and Diagnostics Manual...
  • Page 100 This subtest writes specified data to a specified sector count, then reads and compares the result. The following message displays on the screen to enter the test data, sector count. TEST DATA ????(=37b3H) SECTOR COUNT (01~39) ?? START ADDRESS (00000000~Max Address) ? Satellite U840 Tests and Diagnostics Manual...

  • Page 101: Real Time Clock Test

    If YES is selected for Test Loop on the Test Parameter menu, the screen above displays and the test is executed again. Press Ctrl + break to return to the Real Time Clock Test menu. Satellite U840 Tests and Diagnostics Manual...
  • Page 102 To exit this subtest and return to the Real Time Clock menu: Press Enter if NO was selected for Test Loop on the Test Parameter Menu. Press Ctrl + break if YES was selected for Test Loop on the Test Parameter Menu. Satellite U840 Tests and Diagnostics Manual...

  • Page 103: Cache Memory Test

    (FFH, FEH, FEH, through 02H, 01H, 00H) is written and the new data is read and compared with the original data. The original cache memory content is then restored to the cache memory. Satellite U840 Tests and Diagnostics Manual...
  • Page 104 This subtest reads the contents of cache memory and saves it into RAM. The subtest then writes the “working data,” reads the new data and compares the result with the original data. The original cache memory content is then restored to the cache memory. Satellite U840 Tests and Diagnostics Manual...

  • Page 105: High Resolution Display Test

    Display Test menu displays. If YES is selected for Test Loop on the Test Parameter menu, the screen displays the colors listed above. Press Ctrl + break to return to the High Resolution Display Test menu. Satellite U840 Tests and Diagnostics Manual...
  • Page 106 To exit this subtest and return to the High Resolution Display Test menu: Press Enter if NO was selected for Test Loop on the Test Parameter Menu. Press Ctrl + break if YES was selected for Test Loop on the Test Parameter Menu. Satellite U840 Tests and Diagnostics Manual...
  • Page 107 To exit this subtest and return to the High Resolution Display Test menu: Press Enter if NO was selected for Test Loop on the Test Parameter Menu. Press Ctrl + break if YES was selected for Test Loop on the Test Parameter Menu Satellite U840 Tests and Diagnostics Manual...
  • Page 108 To exit this subtest and return to the High Resolution Display Test menu: Press Enter if NO was selected for Test Loop on the Test Parameter Menu. Press Ctrl + break if YES was selected for Test Loop on the Test Parameter Menu. Satellite U840 Tests and Diagnostics Manual...
  • Page 109 To exit this subtest and return to the High Resolution Display Test menu: Press Enter if NO was selected for Test Loop on the Test Parameter Menu. Press Ctrl + break if YES was selected for Test Loop on the Test Parameter Menu. Satellite U840 Tests and Diagnostics Manual...
  • Page 110 To exit this subtest and return to the High Resolution Display Test menu: Press Enter if NO was selected for Test Loop on the Test Parameter Menu. Press Ctrl + break if YES was selected for Test Loop on the Test Parameter Menu. Satellite U840 Tests and Diagnostics Manual...

  • Page 111: Multimedia Test

    Move the highlight bar to the subtest you want to execute and press Enter. NOTE: Use the Toshiba Backup CD-ROM for Subtests 01, 02, and 03. Because CDROM driver issue , the Multimedia function can’t test , this is limitation .

  • Page 112: Memory2 Test

    Subtest 03 Walking 1/Walking 0 test (Right) Tee test method is the same as Subtest2. However, the data to be used differs. 80008000800080007FFF7FFF7FFF7FFF 4000400040004000BFFFBFFFBFFFBFFF Satellite U840 Tests and Diagnostics Manual...
  • Page 113 Subtest 04 Walking 1/Walking 0 test (Left/ Right) Tee test method is the same as Subtest2. However, the data to be used differs. 7FFF7FFF7FFF7FFF8000800080008000 BFFFBFFFBFFFBFFF4000400040004000 DFFFDFFFDFFFDFFF2000200020002000 FFFBFFFBFFFBFFFB0004000400040004 FFFDFFFDFFFDFFFD0002000200020002 FFFEFFFEFFFEFFFE0001000100010001 80008000800080007FFF7FFF7FFF7FFF 4000400040004000BFFFBFFFBFFFBFFF 0004000400040004FFFBFFFBFFFBFFFB 0002000200020002FFFDFFFDFFFDFFFD 0001000100010001FFFEFFFEFFFEFFFE Satellite U840 Tests and Diagnostics Manual...

  • Page 114: Error Codes And Error Status Names

    Bad Address Mark Error Record Not Found HDC Not Reset Error Drive Not Initialized DMA Boundary Error Bad Sector Bad Track Error ECC Error ECC Recover Enabled HDC Error Seek Error Time Out Error Drive Not Ready Satellite U840 Tests and Diagnostics Manual...
  • Page 115 Protect Mode Error Caching Error Other Error Multimedia Write Error Invalid Drive Drive Not Ready Other Error NOTE: If error status name is Other Error , please reference the Error Code for error information Satellite U840 Tests and Diagnostics Manual...

  • Page 116: Running Test

    6. All errors which occur during execution of the Running Test are logged in the Log File. 7. This program is executed according to the Count Loop number selected in the Running Test Edit Item, see Section 3.20. To terminate the program, press Ctrl + Break. Satellite U840 Tests and Diagnostics Manual...

  • Page 117: Dmi Information

    AHCI cannot control under the DOS, Please change SATA Controller Mode to “Compatibility” Mode . System information (Type 1) 1. Manufacture : TOSHIBA 2. Product Name : Satellite U840 3. Version : PSU4RU-123456 (TOSHIBA Part Number) 4. Serial Number : 12345678W (Serial Number) 5.
  • Page 118 Note : Please Check New DMI Information After System Restart !! V3.7 1. **** Manufacture Name ( TOSHIBA ) - (32) 2. **** Product Name ( Satellite P500 ) - (32) 3. **** Part Number ( PSP50U-123456 ) - (26) 4.
  • Page 119 (4) If machine setting 90W , AC adapter use 90W , Adapter Select 120W , “PHM” and “ECO” utility will display wrong data , power consumption display double data more the machine actual use . Satellite U840 Tests and Diagnostics Manual...

  • Page 120: Log Utilities

    TIME OUT ERROR Address Error Status Pass Count Subtest Number Read Data Test Name Write Data Error Count Error Name and Detail [[1:Next, 2:Prev, 3:Exit, 4;Clear, 5:FD Log Read, 6:FD Log Write, 7:Log Save]] Satellite U840 Tests and Diagnostics Manual...
  • Page 121 The following are the test abbreviations for each Diagnostics Test. Test Name Test Abbreviations System Test Memory Test Keyboard Test Display Test Floppy Disk Test Hard Disk Test Real Time Clock Test Cache Memory Test Height Resolution Display Test Multimedia Test Memory2 Test Satellite U840 Tests and Diagnostics Manual...

  • Page 122: System Configuration

    * - 1 HDD DRIVE(S):XXXXXXXXXXXXXXXXXXXXXXXXXX FW Rev.:XXXXXXXX CUR LBA:XXXXXXXX ORG LBA:XXXXXXXX * - BATTERY TYPE:XXXXXXXXXX * - XXXMB MEMORY SIZE * - XXX CPU * - 1 Vedio Chip XXXXXXXXXXXXX Press Enter to return to the Diagnostics Menu. Satellite U840 Tests and Diagnostics Manual...

  • Page 123: Function Description

    640 * 480 Graphics Display Display Test Subtest 08 Display Page Floppy Disk Test Subtest 02 Sequential W/R/C Hard Disk Test Subtest 01 Sequential Read Real Time Clock Test Subtest 02 Backup Memory Test Tab: HELP (Key Operation) Satellite U840 Tests and Diagnostics Manual...
  • Page 124 7. Select the option and press Enter. 8. Select 03 from the Diagnostics Menu and press Enter to execute the Running Test. NOTE: If press Ctrl+break in the runin process, please press more one any key to exit. Satellite U840 Tests and Diagnostics Manual...

  • Page 125: Common Tests And Operation

    Error Count :00000 Write Data Read Data Address :00000000 Status Test Name Displays the name of the test being executed. Subtest No. Displays the Subtest number in the following format: ffgg ff = Subtest No. Satellite U840 Tests and Diagnostics Manual...
  • Page 126 Displays test data that has failed to compare during the test while being read during the test. Test Address Displays the Test Address. (The format differs for each test.) Error Status Displays the error status. Error Name Displays the name of the error. Satellite U840 Tests and Diagnostics Manual...

  • Page 127: Test Stop Display

    Letters which must be entered are always shown in [ ]. Simultaneous entries are displayed by a “+” mark. For example: [a] [Enter] Press the “a” key, then press the [Enter] key. [Ctrl] + [c] Press the [Ctrl] key and the “c” key simultaneously. Satellite U840 Tests and Diagnostics Manual...
  • Page 128 FRU that is the potential cause of a computer fault, use the chart to determine the order in which FRUs need to be removed. The tilt stand, if it is installed, can be removed without any other FRUs removed. Satellite U840 Maintenance Manual (960-Q08)
  • Page 129 DANGER: 1. In the case of the battery, always use authentic parts or equivalent parts approved by Toshiba. Other batteries may have different specifications that are incompatible with the computer and may result in fire or explosion.
  • Page 130 Screw sizes are noted in the text and figures. As all parts have sharp edges and corners, take care not to cut yourself. After replacing an FRU, check that the computer and replaced part operate correctly. Satellite U840 Maintenance Manual (960-Q08)
  • Page 131 Normal pin connectors are used for all other cables. Simply pull out or push in these connectors to disconnect or reconnect. Pressure plate connector Spring connector Satellite U840 Maintenance Manual (960-Q08)
  • Page 132 One Philips screwdriver with type 1 bit (for screws other than above) • Tweezers (for lifting screws) • ESD mats (lay on work table or floor) • An ESD wrist strap and heel grounder • Anti-static carpet or flooring Satellite U840 Maintenance Manual (960-Q08)
  • Page 133 Special length screw: Blue G r ip a r e a “Special length screw” means screws whose length is indicated in an integral number to the first decimal places such as 2.5 mm, 2.8 mm and so on. Satellite U840 Maintenance Manual (960-Q08)
  • Page 134 Screw shape + Screw length (mm) Screw shape B: Bind screw F: Thin head screw S: Super thin head screw T: Tapping screw U: Other screws (Unique screws: pan head, stud, etc.) Example: B6 … 6mm bind screw Satellite U840 Maintenance Manual (960-Q08)
  • Page 135 6. Disassemble Base case, disconnect the Battery power connector from the main board first, then Disconnect signal connector from main board. 7. Remove 3 PCS M2.0 x 3.0I (BZI) screws from battery, picks battery from Top case. Satellite U840 Maintenance Manual (960-Q08)
  • Page 136 Replacement Procedures Figure 4-2-1 Remove 13 PCS rubbers from base Figure 4-2-2 Remove 13 PCS M2.0 x 5.0 -I (NI) screws from base From this side to remove base Satellite U840 Maintenance Manual (960-Q08)
  • Page 137 Figure 4-2-4 Disconnect the Battery power connector FIRST from the main board after disassembling the Base case before service agent touch in electrical units (SSD/HDD, Memory module and other parts), then disconnect signal connector from the main board Satellite U840 Maintenance Manual (960-Q08) 4-10...
  • Page 138 NOTE: Dispose of the used battery pack in accordance with the laws and ordinances of your local authority. Installing the battery pack The following describes the procedure for installing the battery pack (See Figure 4-2-2). Satellite U840 Maintenance Manual (960-Q08) 4-11...
  • Page 139 Dispose always the used battery pack in accordance with the laws and ordinances of your local authority. Use only the batteries approved by Toshiba. NOTE: Check visually the battery terminals and clean off any dirt with a dry cloth.
  • Page 140 4. Disassemble 2 PCS HDD bracket. 5. Disconnect HDD cable from main board and USB board. 6. Remove SSD120GB 7. Remove SSD 16GB Figure 4-3-1 Remove 13PCS screw cap and 13 PCS M2.0 x 5.0 Screws from base Satellite U840 Maintenance Manual (960-Q08) 4-13...
  • Page 141 Replacement Procedures Remove M2.0 x 2.5 screws 4PCS Remove HDD bracket 2PCS Figure 4-3-2 Disassemble two PCS HDD bracket Push cable connect Vertically pull two as below arrow HDD cable Figure 4-3-3 Disconnect HDD cable. Satellite U840 Maintenance Manual (960-Q08) 4-14...
  • Page 142 Replacement Procedures Remove M2.0x2.5 screw 1PCS Figure 4-3-4 RemoveM2.0x2.5 screw, SSD120GB, disassemble 120G SSD. Figure 4-3-5 RemoveM2.0x2.5 screw, SSD16GB, disassemble 16G SSD Satellite U840 Maintenance Manual (960-Q08) 4-15...
  • Page 143 5. Insert the 128GB SSD to SSD slot slantwise and press it to connector firmly, then lock with screw M2.0×2.5-I(BUWZN) 1PCS 6. Insert the 16GB SSD to SSD slot slantwise and press it to connector firmly, and lock with screw M2.0×2.5-I(BUWZN) 1PCS Satellite U840 Maintenance Manual (960-Q08) 4-16...
  • Page 144 1. Remove 13 PCS screw caps, and remove 13PCS screws from base, and remove disassemble base. 2. Disconnect power cable power connector from main board. 3. Open the left and right latches and remove a memory module. Figure 4-4-1 Remove screw caps and screws, disassemble base Satellite U840 Maintenance Manual (960-Q08) 4-17...
  • Page 145 Replacement Procedures Figure 4-4-2 Disconnect power connector from main board Satellite U840 Maintenance Manual (960-Q08) 4-18...
  • Page 146 Replacement Procedures Ram is released Figure 4-4-3 Remove a memory module Satellite U840 Maintenance Manual (960-Q08) 4-19...
  • Page 147 2. When the power of the computer is turned on, the computer checks automatically the memory size. Confirm that the new memory is detected correctly. 3. If the memory is not detected, check that it is connected correctly. Satellite U840 Maintenance Manual (960-Q08) 4-20...
  • Page 148 Replacement Procedures Socket1 Socket2 Figure 4-4-4 Insert a memory module Satellite U840 Maintenance Manual (960-Q08) 4-21...
  • Page 149 FFC through the slot, paste keyboard on top case , 2. Turn the computer upside down, connect keyboard FFC to the connector on main board. Figure 4-5-1 Connect Keyboard FFC to connect on main board Satellite U840 Maintenance Manual (960-Q08) 4-22...
  • Page 150 3. Disconnect the wireless LAN antenna cable from the connectors on a wireless LAN card. 4. Remove screw M2.0x2.5 1PCS and remove a wireless LAN card from the connector on the system board. Figure 4-6-1 Remove screw caps and screws, disassemble base Satellite U840 Maintenance Manual (960-Q08) 4-23...
  • Page 151 Replacement Procedures Figure 4-6-2 disconnect Wireless LAN card cable Figure 4-6-3 Remove screw M2.0x2.5 1PCS and disassemble wireless LAN card Satellite U840 Maintenance Manual (960-Q08) 4-24...
  • Page 152 2. Connect the wireless LAN antenna cable to the terminals on a wireless LAN card. 3. Put the wireless LAN antenna cable on the right location from the guide Figure 4-6-4 Cables layout on motherboard Satellite U840 Maintenance Manual (960-Q08) 4-25...
  • Page 153 LAN cable as guide of main board. 8. Push display assembly as the arrowhead direction and disassemble display assembly from system. Figure 4-7-1 Remove 13 PCS screw caps, and remove 13PCS screws from base, and remove disassemble base. Satellite U840 Maintenance Manual (960-Q08)
  • Page 154 Chapter 4 Replacement Procedures Figure 4-7-2 Remove Right and Left Hinge screws M2.0x5.0 2 PCS. Figure 4-7-3 Disconnect LCD cable from main board, Turn the left and right hinge to Satellite U840 Maintenance Manual (960-Q08)
  • Page 155 Chapter 4 Replacement Procedures 90 degree. Figure 4-7-4 Pull out wireless LAN cable as guide of main board. Figure 4-7-5 Disassemble display assembly from system. Satellite U840 Maintenance Manual (960-Q08)
  • Page 156 Lock hinge screws M2x5 2 PCS. 3. Route wireless LAN cable on main board as the guide; connect wireless LAN connector to main board. Figure 4-7-6 Assemble top case assembly to display assembly Satellite U840 Maintenance Manual (960-Q08)
  • Page 157 Chapter 4 Replacement Procedures Figure 4-7-7 Connect display cable connector to main board. Lock hinge screws M2.0x5.0 2 PCS. Figure 4-7-8 Route wireless LAN cable ,connect wireless LAN cable connector to main board Satellite U840 Maintenance Manual (960-Q08)
  • Page 158 DC-IN cable, TP FFC, LED FFC and Speaker cable from the connector on the System Board. 3. Remove the following screws securing the System Board and remove the System Board. Figure 4-8-1 Disconnect system cable and FFC Satellite U840 Maintenance Manual (960-Q08)
  • Page 159 Chapter 4 Replacement Procedures Figure 4-8-2 loose screws and remove the System Board Satellite U840 Maintenance Manual (960-Q08)
  • Page 160 2. Connect the Speaker cable, LCD cable, Fan cable, Wireless LAN, Keyboard FFC, DC-IN cable, TP FFC, LED FFC and Power cable to the connector on the System Board. NOTE: Power cable connectors connect last otherwise will have risk of short circuit even cause flame. Satellite U840 Maintenance Manual (960-Q08)
  • Page 161 The following describes the procedure for installing the System Board,(see Figure4-9-1 to 4- 9-3) 1. Disconnect HDD cable connector from USB board connector. 2. Remove screw M2.0x2.5-I (BUWZN) x 4PCS. Figure 4-9-1 Disconnect HDD cable Satellite U840 Maintenance Manual (960-Q08)
  • Page 162 1. Place USB board on top case, secure USB board with following screws M2.0x2.5-I (BUWZN) screws 4PCS 2. Connect HDD cable to USB connector. RTC battery RTC battery is fixed on MB, so it can’t be removed. Satellite U840 Maintenance Manual (960-Q08)
  • Page 163 Chapter 4 Replacement Procedures Figure 4-9-3 RTC battery pasted on main board. Satellite U840 Maintenance Manual (960-Q08)
  • Page 164 Figure 4-10-1 Remove the CPU Heat Sink Installing the CPU Heat Sink The following describes the procedure for installing the CPU Heat Sink Secure the following screws securing the heat sink holder along 1 to 3. Satellite U840 Maintenance Manual (960-Q08)
  • Page 165 4. Remove the following screws securing the LCD Unit, and disconnect CCD FPC 5. Remove the LCD Unit; disconnect LCD cable from connector on the back of LCD. Satellite U840 Maintenance Manual (960-Q08)
  • Page 166 Chapter 4 Replacement Procedures Figure 4-11-1 Remove the display mask Figure 4-11-2 Remove screws and disconnect the connector of CCD Satellite U840 Maintenance Manual (960-Q08)
  • Page 167 4. Secure the display mask with following screws • M2.0×2.5 screw x4PCS 5. Cover screws with Screw MYLAR cover x4PCS NOTE: When installing the display mask, make sure there is no gap between the display mask and the display cover. Satellite U840 Maintenance Manual (960-Q08)
  • Page 168 The following describes the procedure for removing the CCD Module. (See Figure 4-12-1 to 4-12-2). 1. Remove the connector of CCD Module 2. Peel off the glue of CCD Module. Figure 4-12-1 Remove the connector of CCD Module Figure 4-12-2 Remove the CCD Module Satellite U840 Maintenance Manual (960-Q08)
  • Page 169 4.13 Application for Thermal Grease on CPU and North Bridge (See Figure 4-13-1 to 4-13-2) 1.Application For thermal grease on CPU Figure 4-13-1 Apply thermal grease on CPU A000018440 THERMAL GREASE GFC-M1 2. Use grease on CPU Satellite U840 Maintenance Manual (960-Q08)
  • Page 170 Chapter 4 Replacement Procedures 0.1cc for one repair. Figure 4-13-2 Apply silicon grease for CPU Satellite U840 Maintenance Manual (960-Q08)
  • Page 171 1. Follow previous steps to disassemble base case, disconnect power cable, TP FFC and LED FFC. 2. Remove speaker screws M2.0x5.5-I(BZN) x4PCS, 3. Disconnect speaker cable. 4. Disassemble speaker module and speaker cable Figure 4-14-1 Remove speaker screws M2.0x5.5-I(BZN) x4PCS Figure 4-14-2 Disassemble speaker module and speaker cable Satellite U840 Maintenance Manual (960-Q08)
  • Page 172 Figure 4-14-3 Disassemble speaker module and speaker cable Installing Speaker Module The following describes the procedure for installing Speaker module. Install the Speaker Module Secure Speaker module of following screws. M2.0×5.5-I (BZN) screws x4PCS 3. Connect speaker cable and route speaker cable. Satellite U840 Maintenance Manual (960-Q08)
  • Page 173 1. Follow previous steps to disassemble base case, disconnect power cable from main board. 2. Disconnect Fan cable. (Figure 4-15-1) 3. Remove the following screws securing the Fan. (Figure 4-15-2) M2.0x2.5-I (BNI) screws x2PCS Remove thermal pad screws M2.0x3.0 Blind screws x3PCS Figure 4-15-1 Disconnect Fan cable Satellite U840 Maintenance Manual (960-Q08)
  • Page 174 Installing Fan The following describes the procedure for installing Speaker Box. 1. Lock Fan to top case with following screws. M2.0x2.5-I (BNI) screws x2PCS 2. Secure thermal pad to main board. 3. Connect Fan cable Satellite U840 Maintenance Manual (960-Q08)
  • Page 175 6. Disconnect speaker cable, TP cable, LED cable, LCD cable, wireless LAN cable and DC- IN cable. 7. Remove USB screws and USB board. 8. Remove Left and right hinge screws and disassemble top case assembly from display assembly. Satellite U840 Maintenance Manual (960-Q08)
  • Page 176 Chapter 4 Replacement Procedures Figure 4-16-1 Remove rubbers x13PCS from base Figure 4-16-2 Remove screws M 2.0x 5.0-I (NI) x13PCS from base Figure 4-16-3 Disconnect battery cable, remove battery screw and disassemble battery Satellite U840 Maintenance Manual (960-Q08)
  • Page 177 Chapter 4 Replacement Procedures Figure 4-16-4 Remove HDD bracket, disconnect HDD cable and disassemble HDD system Figure 4-16-5 Disconnect Speaker cable, TP cable, LED cable, LCD cable, wireless LAN Satellite U840 Maintenance Manual (960-Q08)
  • Page 178 Chapter 4 Replacement Procedures cable, and Keyboard FFC and DC-IN cable Figure 4-16-6 Remove USB screws and USB board Satellite U840 Maintenance Manual (960-Q08)
  • Page 179 M 2.0x 5.0-I (NI) screws x2PCS 7. Connect the LCD cable, Fan cable, Wireless LAN, Keyboard FFC, DC-IN cable, TP FFC, LED FFC, HDD cable, Speaker cable and Power cable to the connector on the System Board. Satellite U840 Maintenance Manual (960-Q08)
  • Page 180 3. Remove TP bracket screws M2.0x2.5-I (BUWZN) x3PCS, disassemble TP bracket. 4. Remove TP frame screws M2.0x2.5-I (BNI) x2PCS, disassemble Touch pad. Figure 4-17-1 Disconnect TP FFC from main board and touch pad board connectors. Satellite U840 Maintenance Manual (960-Q08)
  • Page 181 Chapter 4 Replacement Procedures Figure 4-17-2 Peel off aluminum from TP bracket Figure 4-17-3 Remove TP bracket screws M2.0x2.5-I (BUWZN) x3PCS, disassemble TP bracket Satellite U840 Maintenance Manual (960-Q08)
  • Page 182 2. Assemble TP bracket and secure TP bracket with the following screws M2.0x2.5-I (BUWZN) screws x3PCS 3. Pasted aluminum on TP bracket. 4. Connect TP FFC to main board and touch pad connectors. Satellite U840 Maintenance Manual (960-Q08)
  • Page 183 1. Remove screws M2.0x2.5-I (BUWZN) x2PCS and disassemble LED board. 2. Disconnect LED FFC from LED board connector. Figure 4-18-1 Remove screws M2.0x2.5-I (BUWZN) x2PCS and disassemble LED board Figure 4-18-2 Disconnect LED FFC from LED board connector. Satellite U840 Maintenance Manual (960-Q08)
  • Page 184 Installing the LED board The following describes the procedure for removing the touch pad 1. Connector LED FFC to LED board 2. Assemble LED board ,secure LED board with following screws M2.0x2.5-I (BUWZN) screws x 2PCS Satellite U840 Maintenance Manual (960-Q08)
  • Page 185 LCD cover before securing the module with screws. Do not force the module into place, because stress can affect its performance. Also, the panel’s polarized surface is easily scarred, so be careful when handling it. Satellite U840 Maintenance Manual (960-Q08)
  • Page 186 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. Satellite U840 Maintenance Manual (960-Q08)
  • Page 187 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. Satellite U840 Maintenance Manual (960-Q08)
  • Page 188 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. Satellite U840 Maintenance Manual (960-Q08)
  • Page 189 Handling the LCD Module 10. If you transport the module, do not use packing material that contains epoxy resin (amine) or silicon glue (alcohol or oxide). These materials can release gas that can damage the panel’s polarization. Satellite U840 Maintenance Manual (960-Q08)
  • Page 190 Appendix B Appendix B Board Layout B.1 System Board Satellite U840 Maintenance Manual (960-Q08)
  • Page 191 Board Layout Figure B-1 System board layout (Front) Satellite U840 Maintenance Manual (960-Q08)
  • Page 192 Board Layout Figure B-1 System board layout (Back) Table B-1-1 System board ICs and connectors Satellite U840 Maintenance Manual (960-Q08)
  • Page 193 K/B CONN (14) PCN3 Battery CONN (15) WIFI CONN (16) SSD CONN (17) CN13 TP CONN (18) CN22 MB to LED Board CONN (19) (20) (21) JDIM1 DIMM1 CONN (22) JDIM2 DIMM2 CONN (23) LVDS CONN Satellite U840 Maintenance Manual (960-Q08)
  • Page 194 Reset Button key (28) CN15 MB to USB Board CONN B.2 USB Board <Front layout> Figure B-2-1 USB board layout (Front) Table B-2-1 USB board connectors Location Function (01) USB20 CONN (02) USB20 CONN (03) RJ45 CONN Satellite U840 Maintenance Manual (960-Q08)
  • Page 195 Board Layout <Back layout> Figure B-2-2 USB board layout (Back) Table B-2-2 USB Board ICs and connectors Location Function (04) USB Board to MB CONN (05) Cardreader CONN (06) Cardreader IC (07) Transformer IC Satellite U840 Maintenance Manual (960-Q08)
  • Page 196 Board Layout B.3 LED Board <Front layout> Figure B-3-1 LED Board layout (Front) Table B-3-1 LED Board connector Location Function (01) LED Board to MB CONN <Back layout> Figure B-3-2 LED Board layout (Back) Satellite U840 Maintenance Manual (960-Q08)
  • Page 197 LCDVCC LCDVCC LCD_EDIDCLK LCD_EDIDDATA LCD_TXLOUT0- LCD_TXLOUT0+ LCD_TXLOUT1- LCD_TXLOUT1+ LCD_TXLOUT2- LCD_TXLOUT2+ LCD_TXLCLKOUT- LCD_TXLCLKOUT+ LVDS_VADJ DISPON LCD_BK_POWER LCD_BK_POWER USB_CCD#_R USB_CCD_R INT_DMIC_CLK INT_DMIC_DATA CN6 HDMI Connector PIN No. Signal name PIN No. Signal name HDMITX2P HDMITX2N HDMITX1P HDMITX1N Satellite U840 Maintenance Manual (960-Q08)
  • Page 198 PIN No. Signal name PIN No. Signal name +5VSUS_USBP0 --- USB_S&C#_R USB_S&C_R USB30_RX1-_R USB30_RX1+_R I/O USB30_TX1-_R USB30_TX1+_R External MIC Connector 18 18 18 18 PIN No. Signal name PIN No. Signal name MIC1_L3 MIC1_R3 Port_B# Satellite U840 Maintenance Manual (960-Q08)
  • Page 199 PIN No. Signal name PIN No. Signal name TH_FAN_POWER1 FANSIG1 PCN2 Battery Power Connector PIN No. Signal name PIN No. Signal name BAT_V BAT_V BAT_V CN12 K/B Connector PIN No. Signal name PIN No. Signal name Satellite U840 Maintenance Manual (960-Q08)
  • Page 200 MY13 MY10 MY11 MY12 MY15 K_LED_P CAPSLED PCN3 Battery Connector PIN No. Signal name PIN No. Signal name MBCLK MBDATA TEMP_MBAT CN5 5 5 5 WIFI Connector PIN No. Signal name PIN No. Signal name Satellite U840 Maintenance Manual (960-Q08)
  • Page 201 Pin Assignment WLAN_WAKE# WIMAX_P +1.5V PCIE_CLK_REQ1# LAD0 LAD1 CLK_PCIE_MINI# LAD2 CLK_PCIE_MINI LAD3 LFRAME# RF_EN PLTRST# PCIE_RXN_WLAN# I/O WIMAX_P PCIE_RXP_WLAN +1.5V WLANCLK_SMB PCIE_TXN_WLAN# WLANDAT_SMB I/O PCIE_TXP_WLAN USB_WLAN# USB_WLAN WIMAX_P WIMAX_P PCLK_DEBUG PLTRST# +1.5V Satellite U840 Maintenance Manual (960-Q08)
  • Page 202 Pin Assignment BT_RFCTRL_BT WIMAX_P CN3 SSD Connector PIN No. Signal name PIN No. Signal name +1.5V SATA_RXP_1ST_SSD SATA_RXN_1ST_SSD# I/O +1.5V SATA_TXN_1ST_SSD# SATA_TXP_1ST_SSD Satellite U840 Maintenance Manual (960-Q08)
  • Page 203 CN22 MB to LED Board Connector PIN No. Signal name PIN No. Signal name +5VPCU RF_LED# SUSLED_EC# BAT_SAT0# BAT_SAT1# PWRLED# +3VPCU LID591# PCN1 Power Connector PIN No. Signal name PIN No. Signal name DC_JACK DC_JACK Satellite U840 Maintenance Manual (960-Q08)
  • Page 204 VCCRTC_2 GND- CN15 MB to USB Board Connector PIN No. Signal name PIN No. Signal name +5V_S5 +5V_S5 +5V_S5 +5V_S5 +5V_S5 AVDD_CEN TX1P TX1N TX0P TX0N USB_EXT1# USB_EXT1 USB_EXT2# USB_EXT2 USB_CARD USB_CARD# USB_EN0# USBOC# PLTRST# Satellite U840 Maintenance Manual (960-Q08)
  • Page 205 21 M_B_DQ12 123 +1.5VSUS 22 M_B_DQ9 124 +1.5VSUS 23 M_B_DQ13 125 NC 24 M_B_DQ8 126 SMDDR_VREF_DIMM 25 GND 127 GND 26 GND 128 GND 27 M_B_DQSN1 129 M_B_DQ36 28 GND 130 M_B_DQ33 29 M_B_DQSP1 131 M_B_DQ32 Satellite U840 Maintenance Manual (960-Q08)
  • Page 206 65 GND 167 GND 66 GND 168 GND 67 M_B_DQ26 169 M_B_DQSN6 68 M_B_DQ30 170 GND 69 M_B_DQ27 171 M_B_DQSP6 70 M_B_DQ31 172 GND 71 GND 173 GND 72 GND 174 M_B_DQ54 73 M_B_CKE0 175 M_B_DQ55 Satellite U840 Maintenance Manual (960-Q08)
  • Page 207 2 GND 104 M_A_CLKN1 3 GND 105 +1.5VSUS 4 M_A_DQ4 106 +1.5VSUS 5 M_A_DQ0 107 M_A_A10 6 M_A_DQ5 108 M_A_BS#1 7 M_A_DQ1 109 M_A_BS#0 8 GND 110 M_A_RAS# 9 GND 111 +1.5VSUS 10 M_A_DQSN0 112 +1.5VSUS Satellite U840 Maintenance Manual (960-Q08)
  • Page 208 46 GND 148 M_A_DQ41 47 M_A_DQSP2 149 M_A_DQ44 48 GND 150 GND 49 GND 151 GND 50 M_A_DQ22 152 M_A_DQSN5 51 M_A_DQ18 153 GND 52 M_A_DQ19 154 M_A_DQSP5 53 M_A_DQ23 155 GND 54 GND 156 GND Satellite U840 Maintenance Manual (960-Q08)
  • Page 209 90 M_A_A6 192 M_A_DQ62 91 M_A_A5 193 M_A_DQ59 92 M_A_A4 194 M_A_DQ63 93 +1.5VSUS 195 GND 94 +1.5VSUS 196 GND 95 M_A_A3 197 DIMM0_SA0 96 M_A_A2 198 PM_EXTTS#0 97 M_A_A1 199 +3V 98 M_A_A0 200 CGDAT_SMB Satellite U840 Maintenance Manual (960-Q08)
  • Page 210 X-TX0N X-TX1P TERM9 TERM9 X-TX1N TERM9 TERM9 LAN_GND CN2 Cardreader Connector PIN No. Signal name PIN No. Signal name SD_WP SD_D1 SD_D0 CTR0 SD_CLK SD_D1 SD_D0 VCC_XD SD_D2 CTRL4 SD_D3 SD_CMD MS_CLK VCC_XD SD_D3 SD_D2 Satellite U840 Maintenance Manual (960-Q08)
  • Page 211 PIN No. Signal name USB_EXT2# +5V_S5 USB_EXT2 +5V_S5 +5V_S5 USB_EXT1# +5V_S5 USB_EXT1 +5V_S5 USB_CARD# USB_CARD AVDD_CEN TX1P TX1N USB_EN0# USB_OC#9 TX0P PLTRST# TX0N CN3 USB20 Connector PIN No. Signal name PIN No. Signal name USB_POWER USB_EXT1# Satellite U840 Maintenance Manual (960-Q08)
  • Page 212 Signal name PIN No. Signal name USB_POWER USB_EXT2# USB_EXT2 C. 3 LED Board Connector CN1 LED Board to MB Connector PIN No. Signal name PIN No. Signal name +5VPCU RF_LED# SUSLED_EC# BAT_SAT0# BAT_SAT1# PWRLED# +3VPCU LID591# Satellite U840 Maintenance Manual (960-Q08)

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