TravelMate 4320/4720 and Extensa 4220/4620 Service Guide
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... Disassembly Flowchart 50 Removing the Battery Pack 51 Removing the SD Dummy Card 51 Removing the Express Dummy Card 52 Removing the Lower Cover 53 Removing the DIMM 53 Removing the WLAN Board Modules 54 Removing the Hard Disk Drive Module 55 Removing the Optical Drive Module ...Flowchart 59 Removing the Fan Module 60 Removing the CPU Heatsink Module 61 Removing the CPU 62 Removing the Middle Cover 63 Removing the Keyboard 64 Removing the LCD Module 67 Separating the Upper Case from the Lower Case 70 Removing the Touchpad Board Module 71 Removing the Fingerprint...
... Disassembly Flowchart 50 Removing the Battery Pack 51 Removing the SD Dummy Card 51 Removing the Express Dummy Card 52 Removing the Lower Cover 53 Removing the DIMM 53 Removing the WLAN Board Modules 54 Removing the Hard Disk Drive Module 55 Removing the Optical Drive Module ...Flowchart 59 Removing the Fan Module 60 Removing the CPU Heatsink Module 61 Removing the CPU 62 Removing the Middle Cover 63 Removing the Keyboard 64 Removing the LCD Module 67 Separating the Upper Case from the Lower Case 70 Removing the Touchpad Board Module 71 Removing the Fingerprint...
TravelMate 4320/4720 and Extensa 4220/4620 Service Guide
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Main Unit Disassembly Process Main Unit Disassembly Flowchart MAIN UNIT DISASSEMBLY MAIN UNIT Fx2 FAN Ax5 CPU HEATSINK MODULE CPU Hx1 LED INDICATORS BOARD MIDDLE COVER Cx2 KEYBOARD Dx4 LCD MODULE Ax1, Gx11 UPPER CASE Cx4 TOUCHPAD BRACKET ASSEMBLY TOUCHPAD BOARD Cx2 DAUGHTER BOARD Ax1 MAIN BOARD Cx2 MODEM BOARD Cx2 FINGERPRINT BOARD BLUETOOTH BOARD Ax2 SPEAKER MODULES LOWER CASE Chapter 3 59
Main Unit Disassembly Process Main Unit Disassembly Flowchart MAIN UNIT DISASSEMBLY MAIN UNIT Fx2 FAN Ax5 CPU HEATSINK MODULE CPU Hx1 LED INDICATORS BOARD MIDDLE COVER Cx2 KEYBOARD Dx4 LCD MODULE Ax1, Gx11 UPPER CASE Cx4 TOUCHPAD BRACKET ASSEMBLY TOUCHPAD BOARD Cx2 DAUGHTER BOARD Ax1 MAIN BOARD Cx2 MODEM BOARD Cx2 FINGERPRINT BOARD BLUETOOTH BOARD Ax2 SPEAKER MODULES LOWER CASE Chapter 3 59
TravelMate 4320/4720 and Extensa 4220/4620 Service Guide
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7. See "Removing the Fan Module" on page 61. 7. Removing the Middle Cover 1. See "Removing the CPU Heatsink Module" on page 60. 6. Open the LCD screen all the way to release the CPU, then remove the CPU. Chapter 3 63 See "Removing the SD Dummy Card" on page 52. 4. See "...Removing the Express Dummy Card" on page 51. 3. See "Removing the Lower Cover" on page 51. 2. See "Removing the ...
7. See "Removing the Fan Module" on page 61. 7. Removing the Middle Cover 1. See "Removing the CPU Heatsink Module" on page 60. 6. Open the LCD screen all the way to release the CPU, then remove the CPU. Chapter 3 63 See "Removing the SD Dummy Card" on page 52. 4. See "...Removing the Express Dummy Card" on page 51. 3. See "Removing the Lower Cover" on page 51. 2. See "Removing the ...
TravelMate 4320/4720 and Extensa 4220/4620 Service Guide
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See "Removing the Lower Cover" on page 61. 7. See "Removing the CPU Heatsink Module" on page 53. 5. See "Removing the CPU" on page 51. 3. See "Removing the SD Dummy Card" on page 62. 8. See "Removing the Keyboard" on page 51. 2. Disconnect the LED cable. 11. See "Removing the Battery Pack" on page 64. 10. See "Removing the Express Dummy Card" on page 60. 6. See "Removing the Fan Module" on page 52. 4. Chapter 3 67 See "Removing the Middle Cover" on page 63. 9. Disconnect the fingerprint cable. 12. Disconnect the touchpad cable. Removing the LCD Module 1.
See "Removing the Lower Cover" on page 61. 7. See "Removing the CPU Heatsink Module" on page 53. 5. See "Removing the CPU" on page 51. 3. See "Removing the SD Dummy Card" on page 62. 8. See "Removing the Keyboard" on page 51. 2. Disconnect the LED cable. 11. See "Removing the Battery Pack" on page 64. 10. See "Removing the Express Dummy Card" on page 60. 6. See "Removing the Fan Module" on page 52. 4. Chapter 3 67 See "Removing the Middle Cover" on page 63. 9. Disconnect the fingerprint cable. 12. Disconnect the touchpad cable. Removing the LCD Module 1.
TravelMate 4320/4720 and Extensa 4220/4620 Service Guide
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Disconnect the cover switch cable from the mainboard. 18. Disconnect the LCD coaxial cable from the mainboard. 19. Turn the system over and remove the two screws (D) from the LCD coaxial cable. 17. Step 1~2 Chapter 3 Size (Quantity) M2.5 x L6 (2) Color Black Torque 3.0 kgf-cm 69 Detach the mylar tape from the base of the unit. 16.
Disconnect the cover switch cable from the mainboard. 18. Disconnect the LCD coaxial cable from the mainboard. 19. Turn the system over and remove the two screws (D) from the LCD coaxial cable. 17. Step 1~2 Chapter 3 Size (Quantity) M2.5 x L6 (2) Color Black Torque 3.0 kgf-cm 69 Detach the mylar tape from the base of the unit. 16.
TravelMate 4320/4720 and Extensa 4220/4620 Service Guide
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...from the left and right hinge of the LCD module. Color Black Torque 3.0 kgf-cm NOTE: Make sure the cables are routed well before connecting the cables back to the unit. See "Removing the SD Dummy Card" on page 53. 5. See "Removing the Lower Cover" on page 51. 3. See "Removing ... the Battery Pack" on page 64. 10. See "Removing the Express Dummy Card" on page 67. 70 Chapter 3 See "Removing the LCD Module" on page 52. 4. See "Removing the Middle Cover" on page 60. 6. Step 1~2 Size (Quantity) M2.5 x L6 (2) 21. 20. Separating the Upper Case from the Lower Case 1. See "...
...from the left and right hinge of the LCD module. Color Black Torque 3.0 kgf-cm NOTE: Make sure the cables are routed well before connecting the cables back to the unit. See "Removing the SD Dummy Card" on page 53. 5. See "Removing the Lower Cover" on page 51. 3. See "Removing ... the Battery Pack" on page 64. 10. See "Removing the Express Dummy Card" on page 67. 70 Chapter 3 See "Removing the LCD Module" on page 52. 4. See "Removing the Middle Cover" on page 60. 6. Step 1~2 Size (Quantity) M2.5 x L6 (2) 21. 20. Separating the Upper Case from the Lower Case 1. See "...
TravelMate 4320/4720 and Extensa 4220/4620 Service Guide
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...flat screwdriver under the side of the touchpad board and gently pry up the board. 17. See "Removing the Middle Cover" on page 52. 4. See "Removing the SD Dummy Card" on page 60. 6. See "Removing the Fan ...Module" on page 51. 3. See "Removing the Battery Pack" on page 53. 5. See "Removing the Lower Cover" on page 51. 2. See "Removing the CPU Heatsink Module" on page 64. 10. See "Removing the Keyboard" ...releases from the Lower Case" on page 67. 11. See "Removing the LCD Module" on page 70. 12. 16. See "Separating the Upper Case from the upper case, then remove ...
...flat screwdriver under the side of the touchpad board and gently pry up the board. 17. See "Removing the Middle Cover" on page 52. 4. See "Removing the SD Dummy Card" on page 60. 6. See "Removing the Fan ...Module" on page 51. 3. See "Removing the Battery Pack" on page 53. 5. See "Removing the Lower Cover" on page 51. 2. See "Removing the CPU Heatsink Module" on page 64. 10. See "Removing the Keyboard" ...releases from the Lower Case" on page 67. 11. See "Removing the LCD Module" on page 70. 12. 16. See "Separating the Upper Case from the upper case, then remove ...
TravelMate 4320/4720 and Extensa 4220/4620 Service Guide
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13. Detach the fingerprint board. See "Removing the CPU" on page 67. 11. See "Removing the LCD Module" on page 62. 8. Color Silver Torque 1.6 kgf-cm Removing the LED Indicators Board 1. See "Removing the Express Dummy Card" on page 64. 10. See "..." on page 52. 4. Remove the two screws (C) securing the fingerprint board to the bracket. See "Removing the Middle Cover" on page 51. 2. See "Removing the Battery Pack" on page 63. 9. See "Removing the Lower Cover" on page 60. 6. See "Removing the Fan Module" on page 53. 5. Step 1~2 Size (Quantity) M2 x L3 (2) 14...
13. Detach the fingerprint board. See "Removing the CPU" on page 67. 11. See "Removing the LCD Module" on page 62. 8. Color Silver Torque 1.6 kgf-cm Removing the LED Indicators Board 1. See "Removing the Express Dummy Card" on page 64. 10. See "..." on page 52. 4. Remove the two screws (C) securing the fingerprint board to the bracket. See "Removing the Middle Cover" on page 51. 2. See "Removing the Battery Pack" on page 63. 9. See "Removing the Lower Cover" on page 60. 6. See "Removing the Fan Module" on page 53. 5. Step 1~2 Size (Quantity) M2 x L3 (2) 14...
TravelMate 4320/4720 and Extensa 4220/4620 Service Guide
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..." on the LED indicators board. Turn the LED board over, then detach the LED cable from the board, then remove the board. See "Removing the LCD Module" on page 51. 3. See "Removing the SD Dummy Card" on page 67. See "Removing the Keyboard" on page 62. 8. Disconnect the LED board ...cable from the board. See "Removing the CPU" on page 64. 10. See "Removing the Middle Cover" on page 53. 5. Chapter 3 75 Torque 1.6 kgf-cm 14. See "Removing the Lower Cover" on page 63. 9. See "Removing the Fan Module" on page 61. 7. See "Removing the CPU Heatsink Module" ...
..." on the LED indicators board. Turn the LED board over, then detach the LED cable from the board, then remove the board. See "Removing the LCD Module" on page 51. 3. See "Removing the SD Dummy Card" on page 67. See "Removing the Keyboard" on page 62. 8. Disconnect the LED board ...cable from the board. See "Removing the CPU" on page 64. 10. See "Removing the Middle Cover" on page 53. 5. Chapter 3 75 Torque 1.6 kgf-cm 14. See "Removing the Lower Cover" on page 63. 9. See "Removing the Fan Module" on page 61. 7. See "Removing the CPU Heatsink Module" ...
TravelMate 4320/4720 and Extensa 4220/4620 Service Guide
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... page 63. 9. Step 1 Size (Quantity) M2 x L4 14. See "Removing the Middle Cover" on page 53. 5. Color Black Torque 1.6 kgf-cm Chapter 3 77 See "Removing the Fan Module" on page 62. 8. See "Removing the CPU" on page 60. 6. ... Card" on page 75. 13. See "Separating the Upper Case from the lower case. See "Removing the Keyboard" on page 70. 12. See "Removing the LCD Module" on page 61. 7. Remove the screw (A) holding the mainboard. See "Removing the CPU Heatsink Module" on page 67. 11. See "Removing the Express Dummy...
... page 63. 9. Step 1 Size (Quantity) M2 x L4 14. See "Removing the Middle Cover" on page 53. 5. Color Black Torque 1.6 kgf-cm Chapter 3 77 See "Removing the Fan Module" on page 62. 8. See "Removing the CPU" on page 60. 6. ... Card" on page 75. 13. See "Separating the Upper Case from the lower case. See "Removing the Keyboard" on page 70. 12. See "Removing the LCD Module" on page 61. 7. Remove the screw (A) holding the mainboard. See "Removing the CPU Heatsink Module" on page 67. 11. See "Removing the Express Dummy...
TravelMate 4320/4720 and Extensa 4220/4620 Service Guide
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... "Removing the CPU Heatsink Module" on page 51. 2. See "Removing the LCD Module" on page 53. 5. Disconnect the modem board cable from the Lower Case" on page 70. 12. See "Removing the Lower Cover" on page 67. 11. See "Removing the Middle Cover" on page 62. 8. See "Removing the CPU" on page 63...
... "Removing the CPU Heatsink Module" on page 51. 2. See "Removing the LCD Module" on page 53. 5. Disconnect the modem board cable from the Lower Case" on page 70. 12. See "Removing the Lower Cover" on page 67. 11. See "Removing the Middle Cover" on page 62. 8. See "Removing the CPU" on page 63...
TravelMate 4320/4720 and Extensa 4220/4620 Service Guide
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... the SD Dummy Card" on page 60. 6. See "Removing the Fan Module" on page 51. 3. See "Removing the LCD Module" on page 63. 9. Chapter 3 79 14. See "Removing the Middle Cover" on page 67. 11. Remove the two screws (C) on page 70. 12. See "Separating the Upper Case from the mainboard.... See "Removing the Mainboard" on page 53. 5. See "Removing the Lower Cover" on page 77. See "Remove the Daughter Board" on page 62. 8. Detach the modem board from the Lower Case" on the modem board. See "Removing...
... the SD Dummy Card" on page 60. 6. See "Removing the Fan Module" on page 51. 3. See "Removing the LCD Module" on page 63. 9. Chapter 3 79 14. See "Removing the Middle Cover" on page 67. 11. Remove the two screws (C) on page 70. 12. See "Separating the Upper Case from the mainboard.... See "Removing the Mainboard" on page 53. 5. See "Removing the Lower Cover" on page 77. See "Remove the Daughter Board" on page 62. 8. Detach the modem board from the Lower Case" on the modem board. See "Removing...
TravelMate 4320/4720 and Extensa 4220/4620 Service Guide
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... on page 60. 6. See "Removing the Fan Module" on page 51. 3. See "Removing the CPU Heatsink Module" on page 67. 11. See "Removing the LCD Module" on page 61. 7. See "Removing the Battery Pack" on page 62. 8. See "Removing the CPU" on page 51. 2. See "Remove the Daughter Board... page 53. 5. Remove the two screws (A) holding the left and right speaker modules to the lower case. See "Removing the Lower Cover" on page 75. 13. See "Removing the Middle Cover" on page 64. 10. See "Removing the Keyboard" on page 63. 9. Step 1~2 Size (Quantity) M2xL4 (2) Color Black Torque 1.6 ...
... on page 60. 6. See "Removing the Fan Module" on page 51. 3. See "Removing the CPU Heatsink Module" on page 67. 11. See "Removing the LCD Module" on page 61. 7. See "Removing the Battery Pack" on page 62. 8. See "Removing the CPU" on page 51. 2. See "Remove the Daughter Board... page 53. 5. Remove the two screws (A) holding the left and right speaker modules to the lower case. See "Removing the Lower Cover" on page 75. 13. See "Removing the Middle Cover" on page 64. 10. See "Removing the Keyboard" on page 63. 9. Step 1~2 Size (Quantity) M2xL4 (2) Color Black Torque 1.6 ...
TravelMate 4320/4720 and Extensa 4220/4620 Service Guide
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...Module" on page 60. 6. See "Removing the CPU" on page 53. 5. See "Removing the Lower Cover" on page 62. 8. See "Removing the LCD Module" on page 51. 3. Remove the six screws (Ix4, Ex2) on the LCD module in the order as shown. 12. Remove the six rounded screw caps as shown. See... "Removing the SD Dummy Card" on page 67. 11. Step 1~4 5~6 Size (Quantity) M2.5 x L5 (4) M2.5 x L6 (2) Color Black Black Torque 3.0 kgf-cm 3.0 kgf-cm Chapter 3 83 See "Removing the Middle Cover" on ...
...Module" on page 60. 6. See "Removing the CPU" on page 53. 5. See "Removing the Lower Cover" on page 62. 8. See "Removing the LCD Module" on page 51. 3. Remove the six screws (Ix4, Ex2) on the LCD module in the order as shown. 12. Remove the six rounded screw caps as shown. See... "Removing the SD Dummy Card" on page 67. 11. Step 1~4 5~6 Size (Quantity) M2.5 x L5 (4) M2.5 x L6 (2) Color Black Black Torque 3.0 kgf-cm 3.0 kgf-cm Chapter 3 83 See "Removing the Middle Cover" on ...
TravelMate 4320/4720 and Extensa 4220/4620 Service Guide
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... 61. 7. See "Removing the CPU Heatsink Module" on page 53. 5. See "Removing the Keyboard" on page 63. 9. See "Removing the Middle Cover" on page 64. 10. See "Removing the LCD Bezel" on page 51. 3. See "Removing the SD Dummy Card" on page 83. 12. See "Removing the Fan Module" on page 67.... 11. See "Removing the LCD Module" on page 60. 6. Remove the screw (I) that hold the board to the panel. See "Removing the CPU" on page 52. 4. Step 1 Size (Quantity) M2...
... 61. 7. See "Removing the CPU Heatsink Module" on page 53. 5. See "Removing the Keyboard" on page 63. 9. See "Removing the Middle Cover" on page 64. 10. See "Removing the LCD Bezel" on page 51. 3. See "Removing the SD Dummy Card" on page 83. 12. See "Removing the Fan Module" on page 67.... 11. See "Removing the LCD Module" on page 60. 6. Remove the screw (I) that hold the board to the panel. See "Removing the CPU" on page 52. 4. Step 1 Size (Quantity) M2...
TravelMate 4320/4720 and Extensa 4220/4620 Service Guide
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...the Fan Module" on page 51. 3. Disconnect the inverter board cable from its connector, then disconnect the 2P cable on page 61. 7. Removing the LCD with Brackets 1. Remove the inverter board. See "Removing the CPU Heatsink Module" on the inverter board. 15. See "Removing the Battery Pack" on ...page 67. 11. See "Removing the LCD Module" on page 51. 2. See "Removing the LCD Bezel" on page 53. 5. Turn the inverter board over. 14. See "Removing the Lower Cover" on page 83. See "Removing the CPU" on page 63. 9. See "Removing the...
...the Fan Module" on page 51. 3. Disconnect the inverter board cable from its connector, then disconnect the 2P cable on page 61. 7. Removing the LCD with Brackets 1. Remove the inverter board. See "Removing the CPU Heatsink Module" on the inverter board. 15. See "Removing the Battery Pack" on ...page 67. 11. See "Removing the LCD Module" on page 51. 2. See "Removing the LCD Bezel" on page 53. 5. Turn the inverter board over. 14. See "Removing the Lower Cover" on page 83. See "Removing the CPU" on page 63. 9. See "Removing the...
TravelMate 4320/4720 and Extensa 4220/4620 Service Guide
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Detach the CCD board cable from the back cover. 86 Chapter 3 12. Step 1~2 Size (Quantity) M2.5 x L5 (2) Color Silver 15. Detach the LCD with the brackets from the CCD board, then remove the board. 14. Carefully detach the cables from the latches on page 84. 13. Remove the two screws (J) securing the left and right LCD brackets. See "Removing the Inverter Board" on the LCD bracket as shown. Torque 2.5 kgf-cm 16.
Detach the CCD board cable from the back cover. 86 Chapter 3 12. Step 1~2 Size (Quantity) M2.5 x L5 (2) Color Silver 15. Detach the LCD with the brackets from the CCD board, then remove the board. 14. Carefully detach the cables from the latches on page 84. 13. Remove the two screws (J) securing the left and right LCD brackets. See "Removing the Inverter Board" on the LCD bracket as shown. Torque 2.5 kgf-cm 16.
TravelMate 4320/4720 and Extensa 4220/4620 Service Guide
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... Brackets" on page 67. 11. See "Removing the CPU Heatsink Module" on page 83. 12. Removing the LCD Brackets 1. See "Removing the LCD Bezel" on page 61. 7. See "Removing the Middle Cover" on page 60. 6. See "Removing the Fan Module" on page 63. 9. See "Removing the SD Dummy Card" on page 51.... 3. 17. Turn the LCD panel over, then detach the acetic tapes holding the FPC cable to the edge of the LCD panel and detach the acetic ...
... Brackets" on page 67. 11. See "Removing the CPU Heatsink Module" on page 83. 12. Removing the LCD Brackets 1. See "Removing the LCD Bezel" on page 61. 7. See "Removing the Middle Cover" on page 60. 6. See "Removing the Fan Module" on page 63. 9. See "Removing the SD Dummy Card" on page 51.... 3. 17. Turn the LCD panel over, then detach the acetic tapes holding the FPC cable to the edge of the LCD panel and detach the acetic ...
TravelMate 4320/4720 and Extensa 4220/4620 Service Guide
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...doesn't power-off. Mainboard See "Check the Battery Pack" on page 95. Enter BIOS Setup Utility to Disk (S4)" on page 44. LCD cover switch Mainboard Chapter 4 105 Battery pack Mainboard PCMCIA-Related Symptoms Symptom / Error System cannot detect the PC Card (PCMCIA) PCMCIA slot pin ... computer enters hibernation mode. Touchpad Keyboard Hard disk connection board Hard disk drive Mainboard The system doesn't enter standby mode after closing the LCD See "Save to Disk (S4)" on page 44. DIMM Mainboard Speaker-Related Symptoms Symptom / Error In Windows, multimedia programs, no ...
...doesn't power-off. Mainboard See "Check the Battery Pack" on page 95. Enter BIOS Setup Utility to Disk (S4)" on page 44. LCD cover switch Mainboard Chapter 4 105 Battery pack Mainboard PCMCIA-Related Symptoms Symptom / Error System cannot detect the PC Card (PCMCIA) PCMCIA slot pin ... computer enters hibernation mode. Touchpad Keyboard Hard disk connection board Hard disk drive Mainboard The system doesn't enter standby mode after closing the LCD See "Save to Disk (S4)" on page 44. DIMM Mainboard Speaker-Related Symptoms Symptom / Error In Windows, multimedia programs, no ...
TravelMate 4320/4720 and Extensa 4220/4620 Service Guide
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...problems. Action in the Devices Configuration" of BIOS Setup Utility is set to Disk (S4)" on page 44. Press Fn+F5, LCD/CRT/Both display switching Mainboard Mainboard Ensure the "Parallel Port" in Windows doesn't go higher than 90%. Device driver Device cable ...Device Mainboard Keyboard/Touchpad-Related Symptoms Symptom / Error Keyboard (one or more keys) does not work. System hangs intermittently. LCD cover switch Mainboard Remove battery pack and let it cool for 2 hours. Refresh battery (continue use battery until power off, then charge battery...
...problems. Action in the Devices Configuration" of BIOS Setup Utility is set to Disk (S4)" on page 44. Press Fn+F5, LCD/CRT/Both display switching Mainboard Mainboard Ensure the "Parallel Port" in Windows doesn't go higher than 90%. Device driver Device cable ...Device Mainboard Keyboard/Touchpad-Related Symptoms Symptom / Error Keyboard (one or more keys) does not work. System hangs intermittently. LCD cover switch Mainboard Remove battery pack and let it cool for 2 hours. Refresh battery (continue use battery until power off, then charge battery...