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Acer Aspire one 521 Series Service Manual

Also see for Aspire one 521 Series: User guide

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Contents
  1. revision history
  2. Table Of Contents
  3. Table Of Contents
  4. Table Of Contents
  5. System Specifications
  6. storage subsystem
  7. dimensions and weight
  8. System Block Diagram
  9. Notebook Tour
  10. Closed Front View
  11. Right View
  12. Base View
  13. TouchPad Basics
  14. Using the Keyboard
  15. Windows Keys
  16. Hot Keys
  17. Special Keys
  18. Hardware Specifications and Configurations
  19. System Utilities
  20. Information
  21. Main
  22. Security
  23. removing a password
  24. changing a password
  25. Boot
  26. Exit
  27. BIOS Flash Utility
  28. DOS Flash Utility
  29. WinFlash Utility
  30. Remove HDD/BIOS Password Utilities
  31. Removing BIOS Passwords
  32. Miscellaneous Utilities
  33. Machine Disassembly and Replacement
  34. Pre-disassembly Instructions
  35. Disassembly Process
  36. External Module Disassembly Process
  37. Removing the Battery Pack
  38. Removing the Dummy Card
  39. Removing the Base Door
  40. Removing the DIMM Module
  41. Removing the Hard Disk Drive Module
  42. Removing the WLAN Module
  43. Removing the 3G Module
  44. Main Unit Disassembly Process
  45. Removing the Keyboard
  46. Removing the Upper Cover
  47. Removing the Touchpad Board
  48. Removing the Bluetooth Module
  49. Removing the LCD Module
  50. Removing the Mainboard
  51. Removing the Thermal Module
  52. Removing the Speakers
  53. LCD Module Disassembly Process
  54. Removing the LCD Bezel
  55. Removing the Camera Board
  56. Removing the LCD Panel
  57. Removing the LCD Cover Hinges
  58. LCD Reassembly Procedure
  59. Replacing the LCD FPC Cable
  60. Replacing the LCD Panel
  61. Replacing the Camera Board
  62. Replacing the LCD Bezel
  63. Main Unit Reassembly Process
  64. Replacing the Thermal Module
  65. Replacing the Mainboard
  66. Replacing the LCD Module
  67. Replacing the Bluetooth Module
  68. Replacing the Touchpad Board
  69. Replacing the Upper Cover
  70. Replacing the Keyboard
  71. Replacing the Hard Disk Drive
  72. Replacing the DIMM Module
  73. Replacing the 3G Module
  74. Replacing the Wireless LAN Module
  75. Replacing the Base Door
  76. Replacing the Battery
  77. Troubleshooting
  78. Power On Issue
  79. No Display Issue
  80. Random Loss of BIOS Settings
  81. LCD Failure
  82. Built-In Keyboard Failure
  83. TouchPad Failure
  84. Internal Speaker Failure
  85. Internal Microphone Failure
  86. HDD Not Operating Correctly
  87. Intermittent Problems
  88. POST Code Reference Tables
  89. Jumper and Connector Locations
  90. Mainboard Bottom View
  91. BIOS Recovery
  92. FRU (Field Replaceable Unit) List
  93. Main Assembly
  94. LCD Assembly
  95. FRU List
  96. Screw List
  97. Model Definition and Configuration
  98. AO521
  99. Test Compatible Components
  100. Online Support Information
Acer Aspire one 521 Series Service Manual Manual pdf 68 page image
58 Chapter 3Removing the 3G Module1. See “Removing the Battery Pack” on page 49.2. See “Removing the Base Door” on page 51.3. Detach the two (2) cables from the 3G module.NOTE: Take note of the Main (blue) and Auxiliary (yellow) connectors.4. Remove the two (2) screws. Ensure the cables are well clear of the module.Step Screw Quantity Screw Type3G ModuleDisassembly2
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Aspire one 521 Series
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