TravelMate 7720 / 7320 and Extensa 7620 Service Guide
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... Middle Cover and the Power Board 78 Removing the Keyboard 80 Removing the LCD Module 81 Separating the Upper Case from the Lower Case 84 Removing the Launch Board 86 Removing the Touch Pad Board Module 87 Removing the Main Board 90 Removing the ODD Board Module 92 Removing the Speaker... Modules 93 Removing the USB Board 94 LCD Module Disassembly Process 96 LCD Module Disassembly Flowchart 96...
... Middle Cover and the Power Board 78 Removing the Keyboard 80 Removing the LCD Module 81 Separating the Upper Case from the Lower Case 84 Removing the Launch Board 86 Removing the Touch Pad Board Module 87 Removing the Main Board 90 Removing the ODD Board Module 92 Removing the Speaker... Modules 93 Removing the USB Board 94 LCD Module Disassembly Process 96 LCD Module Disassembly Flowchart 96...
TravelMate 7720 / 7320 and Extensa 7620 Service Guide
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... of the hardware components. Observe the order of the sequence to avoid damage to remove the main board, you do the following stages: • External module disassembly • Main unit disassembly • LCD module disassembly The flowcharts provided in that order. General Information Pre-... the inside assembly frame in the succeeding disassembly sections illustrate the entire disassembly sequence. Unplug the AC adapter and all peripherals. 2. Remove the battery pack. Main Screw List Item A B C D E F G H I J K Screw M2.5 x L6 M2 x L4 M2 x L4 M2.5 x L5 M2.5 x L5 M2 x L3 M3 x L4 M2.5...
... of the hardware components. Observe the order of the sequence to avoid damage to remove the main board, you do the following stages: • External module disassembly • Main unit disassembly • LCD module disassembly The flowcharts provided in that order. General Information Pre-... the inside assembly frame in the succeeding disassembly sections illustrate the entire disassembly sequence. Unplug the AC adapter and all peripherals. 2. Remove the battery pack. Main Screw List Item A B C D E F G H I J K Screw M2.5 x L6 M2 x L4 M2 x L4 M2.5 x L5 M2.5 x L5 M2 x L3 M3 x L4 M2.5...
TravelMate 7720 / 7320 and Extensa 7620 Service Guide
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EXTERNAL MODULE DISASSEMBLY TURN OFF POWER AND PERIPHERALS UNPLUG POWER CABLES Cx2 WLAN BOARD Bx9 LOWER COVER Ax1 OPTICAL DISK DRIVE MODULE DIMM MODULES HDD MODULE Gx4 HARD DISK BRACKET OPTICAL DISK DRIVE Kx2 OPTICAL LOCKER BRACKET Bx2 2nd ... on the entire disassembly sequence and instructs you must first remove the keyboard, then disassemble the inside assembly frame in that need to remove the main board, you on the components that order. For example, if you want to be removed during servicing.
EXTERNAL MODULE DISASSEMBLY TURN OFF POWER AND PERIPHERALS UNPLUG POWER CABLES Cx2 WLAN BOARD Bx9 LOWER COVER Ax1 OPTICAL DISK DRIVE MODULE DIMM MODULES HDD MODULE Gx4 HARD DISK BRACKET OPTICAL DISK DRIVE Kx2 OPTICAL LOCKER BRACKET Bx2 2nd ... on the entire disassembly sequence and instructs you must first remove the keyboard, then disassemble the inside assembly frame in that need to remove the main board, you on the components that order. For example, if you want to be removed during servicing.
TravelMate 7720 / 7320 and Extensa 7620 Service Guide
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... module) MIDDLE COVER Cx2 MODEM BOARD CPU/VGA THERMAL MODULE CPU Dx2 VGA BOARD KEYBOARD Ax2 Hx2 LCD MODULE Cx 1 POWER BOARD A x 20 UPPER CASE Jx1 Cx4 MAIN BOARD LAUNCH BOARD Cx4 TOUCH PAD BRACKET ASSEMBLY ODD BOARD Cx1 USB BOARD Cx4 LEFT AND RIGHT SPEAKER MODULE... TOUCH PAD BRACKET TOUCH PAD BOARD FINGERPRINT BOARD Screw List A C D H J Screw ...
... module) MIDDLE COVER Cx2 MODEM BOARD CPU/VGA THERMAL MODULE CPU Dx2 VGA BOARD KEYBOARD Ax2 Hx2 LCD MODULE Cx 1 POWER BOARD A x 20 UPPER CASE Jx1 Cx4 MAIN BOARD LAUNCH BOARD Cx4 TOUCH PAD BRACKET ASSEMBLY ODD BOARD Cx1 USB BOARD Cx4 LEFT AND RIGHT SPEAKER MODULE... TOUCH PAD BRACKET TOUCH PAD BOARD FINGERPRINT BOARD Screw List A C D H J Screw ...
TravelMate 7720 / 7320 and Extensa 7620 Service Guide
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Step 1~2 Size (Quantity) M2 x L4 (2) Color Silver 6. Lift partially to the modem board. 7. See "Removing the Battery Pack" on page 64. 74 Chapter 3 Torque 1.8 kgf-cm NOTE: The modem cable is still attached to detach the modem board from the modem board. See "Removing the Lower Cover" on page 62. 2. See "Removing the DIMM" on page 68. 5. Remove the 2 screws (C) securing the modem card. Disconnect the modem cable from the main board. 3. Removing the Heatsink Fan Module 1. See "Removing the WLAN Board Modules" on page 68. 4.
Step 1~2 Size (Quantity) M2 x L4 (2) Color Silver 6. Lift partially to the modem board. 7. See "Removing the Battery Pack" on page 64. 74 Chapter 3 Torque 1.8 kgf-cm NOTE: The modem cable is still attached to detach the modem board from the modem board. See "Removing the Lower Cover" on page 62. 2. See "Removing the DIMM" on page 68. 5. Remove the 2 screws (C) securing the modem card. Disconnect the modem cable from the main board. 3. Removing the Heatsink Fan Module 1. See "Removing the WLAN Board Modules" on page 68. 4.
TravelMate 7720 / 7320 and Extensa 7620 Service Guide
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Chapter 3 75 See "Removing the Battery Pack" on page 64. Remove the two screws (C) securing the heatsink fan module. Step 1~2 Size (Quantity) M2 x L4 (2) Color Silver 5. Remove the heatsink fan module from FAN1 on the main board. 4. See "Removing the Lower Cover" on page 62. 2. Torque 1.6 kgf-cm Removing the CPU and VGA Heatsink Module 1. 3. Disconnect the heatsink fan connector from the main board.
Chapter 3 75 See "Removing the Battery Pack" on page 64. Remove the two screws (C) securing the heatsink fan module. Step 1~2 Size (Quantity) M2 x L4 (2) Color Silver 5. Remove the heatsink fan module from FAN1 on the main board. 4. See "Removing the Lower Cover" on page 62. 2. Torque 1.6 kgf-cm Removing the CPU and VGA Heatsink Module 1. 3. Disconnect the heatsink fan connector from the main board.
TravelMate 7720 / 7320 and Extensa 7620 Service Guide
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... remove the Middle Cover, carefully insert the plastic flat screwdriver under the side of the middle cover. 3. Carefully remove the VGA board from the main board. See "Removing the Battery Pack" on the other side until you could detach the Middle Cover. 78 Chapter 3 Step 1~2 Size (Quantity) M2.5 x L5 (2) Color Silver 6. ...
... remove the Middle Cover, carefully insert the plastic flat screwdriver under the side of the middle cover. 3. Carefully remove the VGA board from the main board. See "Removing the Battery Pack" on the other side until you could detach the Middle Cover. 78 Chapter 3 Step 1~2 Size (Quantity) M2.5 x L5 (2) Color Silver 6. ...
TravelMate 7720 / 7320 and Extensa 7620 Service Guide
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4. Disconnect the Power board cable from the main board and disconnect the Power board cable. Chapter 3 79 Detach the cover and turn it over on the keyboard. 5.
4. Disconnect the Power board cable from the main board and disconnect the Power board cable. Chapter 3 79 Detach the cover and turn it over on the keyboard. 5.
TravelMate 7720 / 7320 and Extensa 7620 Service Guide
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Carefully pry the keyboard out of the side latches and slide it over on page 64. 3. See "Removing the Keyboard" on page 78. 5. then turn it out; See "Removing the Middle Cover and the Power Board" on page 80. Disconnect the keyboard cable from the main board to remove the keyboard. Removing the LCD Module 1. See "Removing the Battery Pack" on page 68. 4. See "Removing the WLAN Board Modules" on page 62. 2. Chapter 3 81 See "Removing the Lower Cover" on the touchpad area. 5. 4.
Carefully pry the keyboard out of the side latches and slide it over on page 64. 3. See "Removing the Keyboard" on page 78. 5. then turn it out; See "Removing the Middle Cover and the Power Board" on page 80. Disconnect the keyboard cable from the main board to remove the keyboard. Removing the LCD Module 1. See "Removing the Battery Pack" on page 68. 4. See "Removing the WLAN Board Modules" on page 62. 2. Chapter 3 81 See "Removing the Lower Cover" on the touchpad area. 5. 4.
TravelMate 7720 / 7320 and Extensa 7620 Service Guide
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Remove the internal microphone cable from the latches. 82 Chapter 3 6. Remove the acetic tape and disconnect the LCD coaxial cable from the LCD1 connector on the main board and release the cables from the INTMIC1 connector on the main board. 7.
Remove the internal microphone cable from the latches. 82 Chapter 3 6. Remove the acetic tape and disconnect the LCD coaxial cable from the LCD1 connector on the main board and release the cables from the INTMIC1 connector on the main board. 7.
TravelMate 7720 / 7320 and Extensa 7620 Service Guide
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...18. See "Removing the Keyboard" on page 70. 11. Disconnect the cover switch cable from LID1 on page 68. 9. See "Removing the WLAN Board Modules" on the main board. 84 Chapter 3 See "Removing the Secondary HDD Cover" on page 68. 8. See "Removing the DIMM" on page 65. 6. See "Removing the... Hard Disk Drive Module" on page 77. 15. See "Removing the CPU" on page 69. 10. See "Removing the VGA board (for Discrete model...
...18. See "Removing the Keyboard" on page 70. 11. Disconnect the cover switch cable from LID1 on page 68. 9. See "Removing the WLAN Board Modules" on the main board. 84 Chapter 3 See "Removing the Secondary HDD Cover" on page 68. 8. See "Removing the DIMM" on page 65. 6. See "Removing the... Hard Disk Drive Module" on page 77. 15. See "Removing the CPU" on page 69. 10. See "Removing the VGA board (for Discrete model...
TravelMate 7720 / 7320 and Extensa 7620 Service Guide
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Disconnect the touchpad cable from the main board. 21. Disconnect the DC in cable from the TOUCHPAD1 on the main board. 23. Disconnect the fingerprint cable (select model only) from the main board. 22. Disconnect the Launch board cable from the SWITCHCN1 from the FPCN1 connector on the main board. Chapter 3 85 20.
Disconnect the touchpad cable from the main board. 21. Disconnect the DC in cable from the TOUCHPAD1 on the main board. 23. Disconnect the fingerprint cable (select model only) from the main board. 22. Disconnect the Launch board cable from the SWITCHCN1 from the FPCN1 connector on the main board. Chapter 3 85 20.
TravelMate 7720 / 7320 and Extensa 7620 Service Guide
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...HDD Bracket and Connector" on page 63. 4. See "Removing the Lower Cover" on page 68. 9. See "Removing the WLAN Board Modules" on page 64. 5. Remove the upper case from the main unit. Step 1~20 Size (Quantity) M2.5 x L6 (20) Black 25. See "Removing the Battery Pack" on page ...69. 10. See "Removing the Hard Disk Drive Module" on page 62. 2. See "Removing the DIMM" on page 73. 86 Chapter 3 See "Removing the Modem Board" on page...
...HDD Bracket and Connector" on page 63. 4. See "Removing the Lower Cover" on page 68. 9. See "Removing the WLAN Board Modules" on page 64. 5. Remove the upper case from the main unit. Step 1~20 Size (Quantity) M2.5 x L6 (20) Black 25. See "Removing the Battery Pack" on page ...69. 10. See "Removing the Hard Disk Drive Module" on page 62. 2. See "Removing the DIMM" on page 73. 86 Chapter 3 See "Removing the Modem Board" on page...
TravelMate 7720 / 7320 and Extensa 7620 Service Guide
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... CPU and VGA Heatsink Module" on page 77. 15. See "Removing the CPU" on page 75. 14. See "Removing the Middle Cover and the Power Board" on page 62. 2. See "Removing the Battery Pack" on page 78. 17. See "Removing the Lower Cover" on page 65. 6. See "Removing the Secondary ... case, only remove the touchpad board if it is defective. See "Removing the LCD Module" on page 69. 10. See "Removing the Hard Disk Drive Module" on page 81. 19. 24. See "Separating the Upper Case from the Lower Case" on page 84. 90 Chapter 3 Removing the Main Board 1. Carefully pry loose and...
... CPU and VGA Heatsink Module" on page 77. 15. See "Removing the CPU" on page 75. 14. See "Removing the Middle Cover and the Power Board" on page 62. 2. See "Removing the Battery Pack" on page 78. 17. See "Removing the Lower Cover" on page 65. 6. See "Removing the Secondary ... case, only remove the touchpad board if it is defective. See "Removing the LCD Module" on page 69. 10. See "Removing the Hard Disk Drive Module" on page 81. 19. 24. See "Separating the Upper Case from the Lower Case" on page 84. 90 Chapter 3 Removing the Main Board 1. Carefully pry loose and...
TravelMate 7720 / 7320 and Extensa 7620 Service Guide
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Disconnect the speaker cable from the main board. 21. Remove the four screws (C) holding the main board. Step 1~4 Size (Quantity) M2 x L4 (4) Color Silver Torque 1.6 kgf-cm Chapter 3 91 Disconnect the USB cable from the SPKR1 on the main board. 22. Disconnect the Bluetooth cable from the BLUE1 connector on the main board. 23. 20.
Disconnect the speaker cable from the main board. 21. Remove the four screws (C) holding the main board. Step 1~4 Size (Quantity) M2 x L4 (4) Color Silver Torque 1.6 kgf-cm Chapter 3 91 Disconnect the USB cable from the SPKR1 on the main board. 22. Disconnect the Bluetooth cable from the BLUE1 connector on the main board. 23. 20.
TravelMate 7720 / 7320 and Extensa 7620 Service Guide
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... page 90. 21. See "Removing the Secondary HDD Cover" on page 73. 12. See "Removing the Modem Board" on page 65. 6. See "Removing the LCD Module" on page 68. 8. Carefully remove the main board from the main board. 92 Chapter 3 See "Removing the DIMM" on page 81. 19. See "Removing the WLAN... Board Modules" on page 77. 15. See "Removing the CPU" on page 68. 9. See "Removing the PC and ...
... page 90. 21. See "Removing the Secondary HDD Cover" on page 73. 12. See "Removing the Modem Board" on page 65. 6. See "Removing the LCD Module" on page 68. 8. Carefully remove the main board from the main board. 92 Chapter 3 See "Removing the DIMM" on page 81. 19. See "Removing the WLAN... Board Modules" on page 77. 15. See "Removing the CPU" on page 68. 9. See "Removing the PC and ...
TravelMate 7720 / 7320 and Extensa 7620 Service Guide
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...page 70. 11. See "Removing the Keyboard" on page 62. 2. See "Removing the Battery Pack" on page 80. 18. See "Removing the VGA board (for Discrete model only)" on page 84. 20. See "Separating the Upper Case from the latches. See "Removing the Secondary HDD Cover" on page 69...Release the speaker cables from the Lower Case" on page 77. 16. See "Removing the WLAN Board Modules" on page 90. 21. See "Removing the Main Board" on page 68. 9. See "Removing the Middle Cover and the Power Board" on page 64. 5. See "Removing the Lower Cover" on page 78. 17. See "...
...page 70. 11. See "Removing the Keyboard" on page 62. 2. See "Removing the Battery Pack" on page 80. 18. See "Removing the VGA board (for Discrete model only)" on page 84. 20. See "Separating the Upper Case from the latches. See "Removing the Secondary HDD Cover" on page 69...Release the speaker cables from the Lower Case" on page 77. 16. See "Removing the WLAN Board Modules" on page 90. 21. See "Removing the Main Board" on page 68. 9. See "Removing the Middle Cover and the Power Board" on page 64. 5. See "Removing the Lower Cover" on page 78. 17. See "...
TravelMate 7720 / 7320 and Extensa 7620 Service Guide
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... the Battery Pack" on page 78. 17. See "Removing the Modem Board" on page 77. 16. See "Removing the VGA board (for Discrete model only)" on page 73. 12. See "Separating the Upper Case from the upper case. See "Removing the Main Board" on page 84. 20. Torque 1.6 kgf-cm Removing the USB... Board 1. See "Removing the PC and ExpressCard dummy cards" on page 70. 11. See "Removing the Optical Drive Module" on ...
... the Battery Pack" on page 78. 17. See "Removing the Modem Board" on page 77. 16. See "Removing the VGA board (for Discrete model only)" on page 73. 12. See "Separating the Upper Case from the upper case. See "Removing the Main Board" on page 84. 20. Torque 1.6 kgf-cm Removing the USB... Board 1. See "Removing the PC and ExpressCard dummy cards" on page 70. 11. See "Removing the Optical Drive Module" on ...
TravelMate 7720 / 7320 and Extensa 7620 Service Guide
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...fail. See if FDD Test is correct, run the Keyboard Test. Follow the instructions in the message window. Replace the keyboard. 3. Replace the main board. NOTE: Make sure that the diskette does not have any label attached to it . If the error still remains: 1. Reconnect the external ...diskette drive/DVD-ROM module. 2. Reconnect the external diskette drive/CD-ROM module. 2. Replace the main board. If the internal keyboard does not work or an unexpected character appears, make sure that the CD-ROM does not have more than one at...
...fail. See if FDD Test is correct, run the Keyboard Test. Follow the instructions in the message window. Replace the keyboard. 3. Replace the main board. NOTE: Make sure that the diskette does not have any label attached to it . If the error still remains: 1. Reconnect the external ...diskette drive/DVD-ROM module. 2. Reconnect the external diskette drive/CD-ROM module. 2. Replace the main board. If the internal keyboard does not work or an unexpected character appears, make sure that the CD-ROM does not have more than one at...
TravelMate 7720 / 7320 and Extensa 7620 Service Guide
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Go to main board. 2. Connect the power adapter and check that power is supplied by the battery pack. A loose connection can cause an error. Disconnect the power adapter and ...
Go to main board. 2. Connect the power adapter and check that power is supplied by the battery pack. A loose connection can cause an error. Disconnect the power adapter and ...