Revision History Refer to the table below for the updates made to this Aspire S7-391 Service Guide. Date Version Chapter Updates 09-14-2012 FIRST DRAFT 09-19-2012 Rev 01 09-20-2012 Rev 02 Service guide files and updates are available on the ACER/CSD website. For more information, go to http://csd.acer.com.tw.The information in this guide is subject to change...
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Conventions The following conventions are used in this manual: WARNING: Indicates a potential for personal injury. CAUTION: Indicates a potential loss of data or damage to equipment. IMPORTANT: Indicates information that is important to know for the proper completion of a procedure, choice of an option, or completing a task.
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Acer-authorized Service Providers: Your Acer office may have a different part number code than those given in the FRU list in this service guide. You must use the list provided by your regional Acer office to order FRU parts for repair and service of customer machines.
4 cell 2500 mAh 4S1P Second Battery (Optional Accessory) 12 hours (total includes main battery life) Up to 180 days using Acer Green Instant On technology (total includes main battery life) Charging period: 1.5 to 2 hours for 0–80% capacity ...
Keyboard and Pointing Device Keyboard 68-/69-/73-key Acer S7 keyboard with international language support EL Backlight Inverted “T” cursor keys Hotkeys for volume and brightness level, keyboard backlight, wireless and sleep functions, and display and touchpad toggle ®...
Notebook Tour This section provides an overview of the features and functions of the notebook. Open Front View Figure 1-1. Open Front View Table 1-1. Open Front View Icon Item Description Ambient Light Sensor Controls the keyboard and monitor backlights. Webcam LED Camera status indicator.
Left View Figure 1-2. Left View Table 1-2. Left View Icon Item Description DC-in jack Connects to the AC adapter. Micro HDMI port Supports high definition digital video connections. Headphone/Mic in Connects to combo Headphone/Mic in devices combo jack Power button Turns the computer on and off.
Right View Figure 1-3. Right View Table 1-3. Right View Icon Item Description Multi-in-1 card reader Supports MMC, MMCplus, and SD cards. Note: Only one card can operate at any given time. 2 - 3 USB 3.0 port Connects to USB devices (e.g., USB mouse, USB camera).
Base View Figure 1-4. Base View Table 1-4. Base View Icon Item Description Battery reset pinhole Insert a paperclip into the hole and press for four seconds to reset the computer (simulates removing and reinstalling the battery) Speakers Deliver stereo audio output. Integrated Internal microphone for sound recording and video microphone...
Touchpad Basics Figure 1-5. Touchpad Move finger across the multi-touchpad (1) to move the cursor. Tapping on the multi-touchpad is the same as clicking the left button of a mouse. Press the lower left (2) and lower right (3) part of the multi-touchpad to perform selection and execution functions.
Keyboard The keyboard contains an inverted “T” cursor key, Windows® key, Application key, function lock keys and hotkeys controlling various computer features. Figure 1-6. Keyboard Lock Key The keyboard has one lock key which the user can toggle on and off. Figure 1-7.
Windows Keys The keyboard has two keys that perform Windows-specific functions. Figure 1-8. Windows-specific Keys Table 1-8. Windows-specific Keys Description Windows Pressed alone, this key toggles the screen between the desktop and the Start screen. It can also be used with other keys to provide a variety of Logo key functions.
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Hotkeys The computer uses hotkeys or key combinations to access most computer controls. To activate hotkeys, press and hold the Fn key before pressing the key in the combination. Figure 1-9. Hotkeys Table 1-9. Hotkeys Hotkey Icon Function Description Fn+Q Communication Toggles the WiFi, 3G and/or Bluetooth functions device toggle...
Specification Tables Computer Specifications Item Metric Imperial Dimensions Width 32.3 cm 12.73 in Depth 22.3 cm 8.80 in Height 1.2 cm 0.47 in Weight (equipped with 4-cell 1.26 kg 2.78 lbs battery pack) Weight (equipped with 4-cell 1.57 kg 3.46 lbs battery pack + 4-cell second battery) Input power...
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System Board Item Specification Core logic ® Mobile Intel HM77 Express Chipset Graphics ® Integrated in the Mobile Intel HM77 Express Chipset USB 3.0 ® Integrated in the Mobile Intel HM77 Express Chipset Wireless LAN + MD222 Bluetooth Audio codec Realtek 271X VB6 Card reader Built-in...
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CPU Temperature Fan Speed (RPM) SPL Spec (dBA) 7680/12288 8777/13653 9637/16384 Throttling 50%: On= 100°C; OFF= 94°C OS shuts down at 103°C; Hardware shuts down at 77°C System Memory Item Specification Memory controller ® Integrated in the Mobile Intel HM77 Express Chipset Memory size 4 GB onboard Maximum system memory...
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Microsoft SLP 1.0 support Microsoft OA 2.0 and 2.1 support Keyboard Item Specification Type Acer S7 keyboard Total number of keys 68-/69-/73-key Windows logo key Internal and external USB keyboard work simultaneously? Features Inverted “T” cursor keys ...
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Item Specification Performance Max. Read Speed 550MB / s 550MB / s Max. Read Speed 510MB / s 520MB / s Power Requirement 5 VDC Card Reader Item Specification Controller RTS 5138 Cards supported MultiMediaCard™ (MMC) MultiMediaCard Plus (MMCplus™) ...
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System LED Indicators Item Specification Power status Solid blue: The computer is turned on. Blinking amber: The computer is in power-saving mode. Indicator off: The computer is turned off. Battery status AC adapter connected: Solid blue: The battery charge is at full capacity. ...
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System Power Management Item Specification Power management system ACPI 3.0-compliant Power global states G3 Mechanical Off - This off state is entered through a mechanical means; no electrical current is running through the circuitry and it can be worked on without damaging the hardware or endangering service personnel.
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System DMA Specification Legacy Mode Power Management DMA0 Free DMA1 Free DMA2 Free DMA3 Free DMA4 Direct memory access controller DMA5 Free DMA6 Free DMA7 Free System Interrupt Specification Hardware IRQ System Function IRQ0 System timer IRQ1 Radio Controller IRQ8 System CMOS/real time clock IRQ12 ELAN PS/2 Port Smart-Pad...
System Utilities BIOS Setup Utility This utility is a hardware configuration program built into a computer’s BIOS (Basic Input/Output System). The utility is pre-configured and optimized so most users do not need to run it. If configuration problems occur, the setup utility may need to be run. Refer to Chapter 4, Troubleshooting when a problem arises.
BIOS Menus This section describes the InsydeH2O BIOS Setup Utility menu tabs. NOTE: NOTE: The screenshots used in this chapter are for reference only. Actual values can vary depending on the computer model. Information This tab shows a summary of the computer‘s hardware information. Figure 2-1.
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Table 2-1. Hardware Information (Continued) Parameter Description Product Name Model name of the computer. Manufacturer Name Computer manufacturer. UUID The universally unique identifier tag assigned to the computer. System Utilities...
Main Use this tab to set the system time and date, enable or disable boot options, and enable or disable the D2D recovery feature. Figure 2-2. BIOS Main Table 2-2. BIOS Main Parameter Description Format/Option System Time System time expressed in 24-hour format. Format: HH:MM:SS (hour:minute:second) System Date...
Security Use this tab to safeguard and protect the computer from unauthorized use. Figure 2-3. BIOS Security Table 2-3. BIOS Security Parameter Description Option Supervisor Password Is Supervisor password setting. or Set Clear User Password Is User password setting. or Set Clear HDD0 Password Is Primary hard drive password setting.
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Table 2-3. BIOS Security (Continued) Parameter Description Option Erase all Secure Boot Option to clear all Secure Boot signature – Setting databases (PK, KEK, db, dbx). Note: An administrator password is required to configure this parameter. Select an UEFI file as Option to launch an UEFI application from the –...
Setting a Password Follow the succeeding instructions to set the user or supervisor passwords. 1. Press to highlight a Set _______ Password parameter and press Enter. The Set _______ Password dialog box appears. Set Supervisor Password Enter New Password Confirm New Password [ Figure 2-4.
Changing a Password 1. Press to highlight a Set _______ Password parameter and press Enter. The Set _______ Password dialog box appears. Set Supervisor Password Enter Current Password [ Enter New Password [ Confirm New Password [ Figure 2-6. Set Supervisor Password 2.
Boot Use this tab to set the preferred drive sequence in which the Setup Utility attempts to boot the operating system. By default, the computer searches for boot devices in the following order: 1. Windows Boot Manager 2. Primary Hard Disk Drive 3.
Exit Use the Exit tab to save or discard changes and close the BIOS Setup Utility. Figure 2-9. BIOS Exit Table 2-9. Exit Parameters Parameter Description Exit Saving Changes Close the BIOS Setup Utility and save the setup changes. Exit Discarding Changes Close the BIOS Setup Utility without saving the setup changes.
BIOS Flash Utilities BIOS Flash memory updates are required for the following conditions: New versions of system programs New features or options Restore a BIOS when it becomes corrupted. Use the Flash utility to update the system BIOS Flash ROM. NOTE: NOTE: If a Crisis Recovery Disc is not available, create one before Flash utility is used.
Remove HDD/BIOS Password Utilities This section explains how to remove the HDD and BIOS passwords. Removing the HDD Password NOTE: NOTE: If the incorrect HDD password is entered three times in succession, an error is generated. (Figure 2-10) Password Error Status HDD password error code Figure 2-10.
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4. Select option 2 (upper case ASCII code) and press Enter. 5. Write down the generated master password. 6. Reboot the computer. 7. In the HDD password prompt, type the master password generated in step 5, then press Enter. System Utilities 2-15...
Removing the BIOS Passwords To clear a lost BIOS password (user or supervisor password), you need to short the clear password hardware gap (G2201) located on the mainboard. Figure 2-13. G2201 Hardware Gap 1. Shut down the computer and disconnect the AC adapter and all other peripherals from the computer.
Using DMI Utility The DMI (Desktop Management Interface) Tool generates a standard framework for managing and tracking system components. The DMI utility supports DOS, Window 7 and Windows 8 with WMI interface installation. Using DMI Utility in DOS Mode Perform the following steps to use the DMI Utility in DOS mode: 1.
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5. Set Boot Mode to Legacy. Figure 2-15. BIOS Boot Mode 6. Connect the USB HDD and reboot the computer. 7. At the command prompt, navigate to the DMI folder. 8. Execute the < DMI.EXE> file. NOTE: NOTE: Refer to Table 2-16 on page 18 below for a list of DMI tool command usage.
Using DMI Utility in Windows Mode Perform the following steps to use the DMI Utility in 32- or 64-bit Windows OS mode: 1. Navigate to the correct DMI folder (DMI\Windows\x86 for 32-bit Windows OS or DMI\WIndows\x64 for 64-bit Windows OS). 2.
Machine Maintenance Machine Disassembly and Replacement This chapter contains step-by-step procedures on how to disassemble the notebook computer for maintenance and troubleshooting. Cable paths and positioning may not represent the actual model. During the removal and installation of the components, ensure all available cable channels and clips are used and that the cables are replaced in the same position.
Pre-disassembly Instructions Before proceeding with the disassembly procedure, make sure that you do the following: 1. Turn off the power to the system and all peripherals. 2. Unplug the AC adapter and all power and signal cables from the system. Figure 3-1.
KEYBOARD CASE ANTENNA HOLDER MODULE Figure 3-2. Disassembly Flowchart Table 3-2. Screw List Step Screw Quantity Acer Part Number Lower Case Disassembly M2 x L3.5 86.9A162.3R5 M2 x L5 86.00S66.525 Battery Pack Disassembly M2 x L2 86.9A162.2R0 Speaker Module Disassembly M2 x L2 86.9A162.2R0...
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Table 3-2. Screw List Step Screw Quantity Acer Part Number Touchpad Module Disassembly M1.2 x L1 86.9A56R.1R0 Mainboard Disassembly M2 x L3 86.9A562.3R0 Thermal Module Disassembly Thermal Screw Upper Case Disassembly M2 x L4 86.9AR62.4R0 WLAN Antenna Holder Disassembly M2 x L3 86.9A562.3R0...
Removing the Lower Case 1. Remove the eleven screws securing the lower case to the upper case assembly. Figure 3-3. Lower Case Screws Table 3-3. Screws Step Screw Quantity Screw Type Lower Case Disassembly M2 x L3.5 M2 x L5 2.
Removing the Battery Pack 1. Perform the “Removing the Lower Case” procedure described on page 3-7. 2. Remove the screw securing the battery pack to the upper case. Figure 3-5. Battery Pack Screw Table 3-5. Screw Step Screw Quantity Screw Type Battery Pack Disassembly M2 x L2 3.
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4. Disconnect the battery pack cable from the mainboard. Figure 3-7. Battery Pack Cable 5. Detach the battery pack from the upper case assembly. Figure 3-8. Battery Pack NOTE: NOTE: The battery pack has been highlighted with the yellow border in Figure 3-8.
Removing the Left and Right Speakers 1. Perform the “Removing the Lower Case” procedure described on page 3-7. 2. Perform the “Removing the Battery Pack” procedure described on page 3-8. 3. Disconnect the speaker’s cable from the mainboard. Figure 3-9. Speaker Cable 4.
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5. Remove the four screws securing the left and right speakers to the upper case assembly. Figure 3-11. Left and Right Speaker Screws Table 3-11. Screws Step Screw Quantity Screw Type Speaker Module Disassembly M2 x L2 6. Detach the left and right speakers from the upper case assembly. Figure 3-12.
Removing the RTC Battery 1. Perform the “Removing the Lower Case” procedure described on page 3-7. 2. Perform the “Removing the Battery Pack” procedure described on page 3-8. 3. Disconnect the RTC battery cable from the mainboard. Figure 3-13. RTC Battery Cable 4.
Removing the Hold Sensor Board 1. Perform the “Removing the Lower Case” procedure described on page 3-7. 2. Perform the “Removing the Battery Pack” procedure described on page 3-8. 3. Release the connector latch (1) from the mainboard, then disconnect the hold sensor cable (2).
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5. Detach the hold sensor board from the upper case assembly. Figure 3-17. Hold Sensor Board NOTE: NOTE: A circuit board that is > 10cm has been highlighted with a yellow rectangle in Figure 3-17. Follow the local regulations for disposing this type of circuit board. 6.
Removing the M-SATA Board 1. Perform the “Removing the Lower Case” procedure described on page 3-7. 2. Perform the “Removing the Battery Pack” procedure described on page 3-8. 3. Release the camera and touch screen cable from the adhesive tape securing it. Figure 3-19.
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5. Remove the screw securing the M-SATA board to the upper case assembly. Figure 3-21. M-SATA Board Screw Table 3-21. Screw Step Screw Quantity Screw Type M-SATA Board Disassembly M2 x L3 6. Detach the M-SATA board from the upper case assembly. Figure 3-22.
Removing the Small Fan 1. Perform the “Removing the Lower Case” procedure described on page 3-7. 2. Perform the “Removing the Battery Pack” procedure described on page 3-8. 3. Perform the “Removing the M-SATA Board” procedure described on page 3-15. 4.
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6. Detach the small fan from the upper case assembly. Figure 3-25. Small Fan 3-18 Machine Maintenance...
Removing the Big Fan 1. Perform the “Removing the Lower Case” procedure described on page 3-7. 2. Perform the “Removing the Battery Pack” procedure described on page 3-8. 3. Release the LCD cable from the adhesive tape securing it. Figure 3-26. LCD Cable Adhesive Tape 4.
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5. Release the connector latch (1) from the mainboard, then disconnect the big fan cable (2). Figure 3-28. Big Fan Cable 6. Remove the two screws securing the big fan to the upper case assembly. Figure 3-29. Big Fan Screws Table 3-29.
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7. Detach the big fan from the upper case assembly. Figure 3-30. Big Fan 3-21 Machine Maintenance...
Removing the Touchpad Module 1. Perform the “Removing the Lower Case” procedure described on page 3-7. 2. Perform the “Removing the Battery Pack” procedure described on page 3-8. 3. Release the connector latch (1) from the mainboard, then disconnect the touchpad cable (2). Figure 3-31.
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5. Remove the five screws securing the touchpad module to the upper case assembly. Figure 3-33. Touchpad Module Screws Table 3-33. Screws Step Screw Quantity Screw Type Touchpad Module Disassembly M1.2 × L1 6. Release the touchpad module from the adhesive tape and spacer securing it. Figure 3-34.
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7. Detach the touchpad module from the upper case assembly. Figure 3-35. Touchpad Module NOTE: NOTE: A circuit board that is > 10cm has been highlighted with a yellow rectangle in Figure 3-35. Follow the local regulations for disposing this type of circuit board. 3-24 Machine Maintenance...
Removing the EL Small Board 1. Perform the “Removing the Lower Case” procedure described on page 3-7. 2. Perform the “Removing the Battery Pack” procedure described on page 3-8. 3. Release the connector latch (1) from the mainboard, then disconnect the EL small board cable (2).
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5. Detach the EL small board from the upper case assembly. Figure 3-38. EL Small Board NOTE: NOTE: A circuit board that is > 10cm has been highlighted with a yellow rectangle in Figure 3-38. Follow the local regulations for disposing this type of circuit board. 3-26 Machine Maintenance...
Removing the Mainboard 1. Perform the “Removing the Lower Case” procedure described on page 3-7. 2. Perform the “Removing the Battery Pack” procedure described on page 3-8. 3. Perform the “Removing the Left and Right Speakers” procedure described on page 3-10. 4.
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12. Release the connector latch (1) from the mainboard, then disconnect the keyboard cable (2). Figure 3-40. Keyboard Cable 13. Remove the six screws securing the mainboard to the upper case. Figure 3-41. Mainboard Screws Table 3-41. Screws Step Screw Quantity Screw Type Mainboard Disassembly...
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14. Detach the DC-In bracket from the upper case. Figure 3-42. DC-In Bracket 15. Gently turn the mainboard over to access the bottom side of the mainboard. Figure 3-43. Mainboard NOTE: NOTE: A circuit board that is > 10cm has been highlighted with a yellow rectangle in Figure 3-43.
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16. Disconnect the DC-In cable from the mainboard. Figure 3-44. DC-In Cable 17. Detach the DC-In cable from the mainboard. Figure 3-45. DC-In Cable Layout 3-30 Machine Maintenance...
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18. Detach the DC-In module from the mainboard. Figure 3-46. DC-In Module 19. Release the WLAN antenna cables from the adhesive tape securing it. Figure 3-47. WLAN Antenna Cables Adhesive Tape 3-31 Machine Maintenance...
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20. Unplug the two antenna cables from the WLAN module. Figure 3-48. WLAN Module Antennas IMPORTANT: For reference during machine reassembly, note that the auxiliary cable have a white spot marking on it and should be reconnected to the auxiliary connector. 3-32 Machine Maintenance...
Removing the Thermal Module 1. Perform the “Removing the Mainboard” procedure described on page 3-27. 2. Loosen the spring-loaded captive screws securing the thermal module. Follow the screw sequence indicated on Figure 3-49. Figure 3-49. Thermal Module Screws Table 3-49. Screws Step Screw Quantity...
Removing the LED Indicator 1. Perform the “Removing the Mainboard” procedure described on page 3-27. 2. Disengage the latches on the middle cover from the upper case assembly in the sequence shown on Figure 3-51, then detach the middle cover. Figure 3-51.
Removing the Upper Case Assembly 1. Perform the “Removing the Mainboard” procedure described on page 3-27. 2. Perform the “Removing the LED Indicator” procedure described on page 3-34. 3. Tilt the upper case until it is approximately at a 45° angle with the LCD assembly. Figure 3-53.
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5. Gently lift the upper case assembly away from the LCD module. Figure 3-55. Upper Case Assembly 3-36 Machine Maintenance...
Removing the Keyboard NOTE: NOTE: The keyboard is easily warped or damaged during the removal process. Take care not to use excessive force when removing. 1. Perform the “Removing the Upper Case Assembly” procedure described on page 3-35. 2. Release the keyboard from the adhesive tape securing it to the upper case assembly. Figure 3-56.
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4. Detach the keyboard from the upper case. Figure 3-58. Keyboard 3-38 Machine Maintenance...
Reassembly Process Reinstalling the Keyboard 1. Place the keyboard in its slot in the upper case assembly. Figure 3-59. Keyboard 2. Secure the keyboard to the upper case assembly using fifty three screws. Figure 3-60. Keyboard Screws Table 3-60. Screws Step Screw Quantity...
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3. Secure the keyboard to the upper case assembly using adhesive tape. Figure 3-61. Keyboard Adhesive Tape 3-40 Machine Maintenance...
Reinstalling the Upper Case Assembly 1. Gently insert the upper case assembly into the LCD module. Figure 3-62. Upper Case Assembly 2. Secure the upper case assembly to the LCD hinges using four screws. Figure 3-63. Upper Case Screws – LCD Hinges Table 3-63.
Reinstalling the LED Indicator 1. Insert the LED indicator into the upper case assembly. Figure 3-64. LED Indicator 2. Insert the middle cover into the upper case assembly until it latch into place. Figure 3-65. Middle Cover 3-42 Machine Maintenance...
Reinstalling the Thermal Module 1. Place the thermal module into the mainboard. Figure 3-66. Thermal Module 2. Tighten the spring-loaded captive screws to secure the thermal module to the mainboard. Follow the screw sequence indicated on Figure 3-67. Figure 3-67. Thermal Module Screws Table 3-67.
Reinstalling the Mainboard 1. Connect the two antenna cables to the WLAN module. Figure 3-68. WLAN Module Antennas IMPORTANT: Note that the auxiliary cable have a white spot marking on it and should be reconnected to the auxiliary connector. 2. Secure the WLAN antenna cables to the mainboard using adhesive tape. Figure 3-69.
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3. Insert the DC-In module into its socket in the upper case assembly. Figure 3-70. DC-In Module 4. Insert the DC-In cable into the mainboard. Figure 3-71. DC-In Cable Layout 3-45 Machine Maintenance...
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5. Connect the DC-In cable to the mainboard. Figure 3-72. DC-In Cable 6. Gently turn the mainboard over and place it into its socket in the upper case assembly. Figure 3-73. Mainboard 3-46 Machine Maintenance...
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7. Place the DC-In bracket into the upper case. Figure 3-74. DC-In Bracket 8. Secure the mainboard to the upper case using six screws. Figure 3-75. Mainboard Screws Table 3-75. Screws Step Screw Quantity Screw Type Mainboard Reassembly M2 × L3 3-47 Machine Maintenance...
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9. Connect the keyboard cable to the mainboard (1), then press the connector latch (2) until it locks into place. Figure 3-76. Keyboard Cable 10. Connect the LED indicator cable to the mainboard (1), then press the connector latch (2) until it locks into place.
Reinstalling the EL Small Board 1. Place the EL small board into the upper case assembly. Figure 3-78. EL Small Board 2. Place the cable into the upper case assembly (1). Connect the EL small board cable to the EL small board (2), then press the connector latch (3) until it locks into place. Figure 3-79.
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3. Connect the EL small board cable to the mainboard (1), then press the connector latch (2) until it locks into place. Figure 3-80. EL Small Board Cable 3-50 Machine Maintenance...
Reinstalling the Touchpad Module 1. Place the touchpad bracket into the upper case assembly. Figure 3-81. Touchpad Bracket 2. Secure the touchpad bracket to the upper case assembly using adhesive tape with spacer. Figure 3-82. Touchpad Bracket Self Adhesive Tape and Spacer 3-51 Machine Maintenance...
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3. Secure the touchpad bracket to the upper case assembly using five screws. Figure 3-83. Touchpad Bracket Screws Table 3-83. Screws Step Screw Quantity Screw Type Touchpad Bracket Reassembly M1.2 × L1 4. Turn the computer over and open the LCD panel. 5.
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6. Press the upper edges of the touchpad module until the latches lock into place. Figure 3-85. Touchpad Latches 7. Close the LCD panel and turn the computer over. 8. Place the cable into the upper case assembly (1). Connect the touchpad cable to the touchpad board (2), then press the connector latch (3) until it locks into place.
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9. Connect the touchpad cable to the mainboard (1), then press the connector latch (2) until it locks into place. Figure 3-87. Touchpad Cable 3-54 Machine Maintenance...
Reinstalling the Big Fan 1. Place the big fan into the upper case assembly. Figure 3-88. Big Fan 2. Secure the big fan to the upper case assembly using two screws. Figure 3-89. Big Fan Screws Table 3-89. Screws Step Screw Quantity Screw Type...
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3. Connect the big fan cable to the mainboard (1), then press the connector latch (2) until it locks into place. Figure 3-90. Big Fan Cable 4. Connect the LCD cable to the mainboard. Figure 3-91. LCD Cable 3-56 Machine Maintenance...
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5. Secure the LCD cable to the mainboard using adhesive tape. Figure 3-92. LCD Cable Adhesive Tape 3-57 Machine Maintenance...
Reinstalling the Small Fan 1. Place the small fan into the upper case assembly. Figure 3-93. Small Fan 2. Secure the small fan to the upper case assembly using two screws. Figure 3-94. Small Fan Screws Table 3-94. Screws Step Screw Quantity Screw Type...
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3. Connect the small fan cable to the mainboard (1), then press the connector latch (2) until it locks into place. Figure 3-95. Small Fan Cable 3-59 Machine Maintenance...
Reinstalling the M-SATA Board 1. Insert the M-SATA board into the upper case assembly. Figure 3-96. M-SATA Board 2. Secure the M-SATA board to the upper case assembly using one screw. Figure 3-97. M-SATA Board Screw Table 3-97. Screw Step Screw Quantity Screw Type...
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3. Connect the camera and touch screen cable to the mainboard. Figure 3-98. Camera and Touch Screen Cable 4. Secure the camera and touch screen cable to the mainboard using adhesive tape. Figure 3-99. Camera and Touch Screen Cable Adhesive Tape 3-61 Machine Maintenance...
Reinstalling the Hold Sensor Board 1. Connect the hold sensor cable to the hold sensor board (1), then press the connector latch (2) until it locks into place. Figure 3-100. Hold Sensor Cable 2. Place the hold sensor board into the upper case assembly. Figure 3-101.
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3. Secure the hold sensor board to the upper case assembly using one screw. Figure 3-102. Hold Sensor Board Screw Table 3-102. Screw Step Screw Quantity Screw Type Hold Sensor Board Reassembly M2 x L2 4. Connect the hold sensor cable to the mainboard (1), then press the connector latch (2) until it locks into place.
Reinstalling the RTC Battery 1. Place the RTC battery into the upper case assembly. Figure 3-104. RTC Battery 2. Connect the RTC battery cable to the mainboard. Figure 3-105. RTC Battery Cable 3-64 Machine Maintenance...
Reinstalling the Left and Right Speakers 1. Place the left and right speakers into the upper case assembly. Figure 3-106. Left and Right Speakers 2. Secure the left and right speakers to the upper case assembly using four screws. Figure 3-107. Left and Right Speaker Screws Table 3-107.
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3. Insert the speaker cable into the latches in the upper case assembly. Figure 3-108. Upper Case Assembly Latches 4. Connect the speaker’s cable to the mainboard. Figure 3-109. Speaker Cable 3-66 Machine Maintenance...
Reinstalling the Battery Pack 1. Place the battery pack into the upper case assembly. Figure 3-110. Battery Pack 2. Connect the battery pack cable to the mainboard. Figure 3-111. Battery Pack Cable 3-67 Machine Maintenance...
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3. Slide the battery pack into its slot in the upper case assembly. Figure 3-112. Battery Cable 4. Secure the battery pack to the upper case using one screw. Figure 3-113. Battery Pack Screw Table 3-113. Screw Step Screw Quantity Screw Type Battery Pack Reassembly M2 x L2...
Reinstalling the Lower Case 1. Gently place the lower case into the upper case assembly then press on all sides until the lower case latches into place. Figure 3-114. Lower Case 2. Secure the lower case to the upper case assembly using eleven screws. Figure 3-115.
NOTE: NOTE: The diagnostic tests are intended for Acer products only. Non-Acer products, prototype cards, or modified options can give false errors and invalid system responses. 1. Obtain as much detailed information as possible about the problem.
Power On Issues If the system does not power on, perform the following, one at a time, to correct the problem. Do not replace a non-defective FRU. Figure 4-1. Power On Issue Computer Shuts Down Intermittently If the system powers off at intervals, perform the following. 1.
No Display Issues If the Display does not work, perform the following, one at a time. Do not replace a non-defective FRU: Figure 4-2. No Display Issue No POST or Video If the POST or video does not appear, perform the following one at a time. 1.
3. Drain stored power by removing the power cable and the battery pack. Hold the power button for 10 seconds. 4. Connect the power cable and reboot the computer. 5. Connect an external monitor to the computer and switch between the internal display and the external display by pressing Fn+F5.
Keyboard Failure If the Keyboard fails, perform the following, one at a time. Do not replace a non-defective FRU: Figure 4-4. Keyboard Failure Troubleshooting...
Touchpad Failure If the Touchpad fails, perform the following, one at a time. Do not replace a non-defective FRU: Figure 4-5. Touchpad Failure Troubleshooting...
Internal Speaker Failure If internal Speakers fail, perform the following, one at a time. Do not replace a non-defective FRU: Figure 4-6. Internal Speaker Failure Sound Problems Perform the following, one at a time. 1. Boot the computer. 2. Navigate to Start Control Panel System and Maintenance System Device Manager.
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Drag the slider to 50. Confirm that the volume is not muted. Click Mixer to verify that other audio applications are set to 50 and not muted. 6. Navigate to Start Control Panel Hardware and Sound Sound. Confirm that Speakers are selected as the default audio device (green check mark).
Microphone Failure If internal or external Microphones fail, perform the following, one at a time. Figure 4-7. Microphone Failure 1. Check that the microphone is enabled. Navigate to Start Control Panel Hardware and Sound Sound and select the Recording tab. 2.
USB Failure If the USB fails, perform the following, one at a time. Do not replace a non-defective FRU: Figure 4-8. USB Failure 4-13 Troubleshooting...
WLAN Failure If the WLAN fails, perform the following, one at a time. Do not replace a non-defective FRU: Figure 4-9. WLAN Failure 4-14 Troubleshooting...
Card Reader Failure If the Card Reader fails, perform the following, one at a time. Do not replace a non-defective FRU: Figure 4-10. Card Reader Failure 4-15 Troubleshooting...
Thermal Unit Failure If the Thermal Unit fails, perform the following, one at a time. Do not replace a non-defective FRU: Figure 4-11. Thermal Unit Failure 4-16 Troubleshooting...
Other Functions Failure 1. Check if drives are functioning correctly. 2. Check if external modules are functioning correctly. 3. Change mainboard to check if current one is defective. 4-17 Troubleshooting...
1. Remove power from the computer. 2. Visually check the components for damage. If any problems are found, replace the FRU. 3. Remove or disconnect all of the following devices: Non-Acer devices Printer, mouse, and other external devices ...
BIOS Beep Codes Table 4-3. BIOS Beep Codes Code Beeps POST Routine Description Verify Real Mode Disable Non-Maskable Interrupt (NMI) Get CPU type Initialize system hardware Initialize chipset with initial POST values Set IN POST flag Initialize CPU registers Enable CPU cache Initialize caches to initial POST values Initialize I/O component Initialize the local bus IDE...
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Table 4-3. BIOS Beep Codes Code Beeps POST Routine Description Enable cache before system BIOS shadow 1-4-1-1 RAM failure on data bits xxxx of high byte of memory bus Test CPU bus-clock frequency Initialize Phoenix Dispatch Manager Warm start shut down Shadow system BIOS ROM Autosize cache Advanced configuration of chipset registers...
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Table 4-3. BIOS Beep Codes Code Beeps POST Routine Description Setup System Management Mode (SMM) area Display external L2 cache size Load custom defaults (optional) Display shadow-area message Display possible high address for UMB recovery Display error messages Check for configuration errors Check for keyboard errors Set up hardware interrupt vectors Initialize coprocessor if present...
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Table 4-3. BIOS Beep Codes Code Beeps POST Routine Description Check for SMART drive (optional) Shadow option ROMs Set up Power Management Initialize security engine (optional) Enable hardware interrupts Determine number of ATA and SCSI drives Set time of day Check key lock Initialize Typematic rate Erase F2 prompt...
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Table 4-3. BIOS Beep Codes Code Beeps POST Routine Description Force check (optional) Extended checksum (optional) Unknown interrupt Initialize the chipset Initialize the bridge Initialize the CPU Initialize the system timer Initialize system I/O Check force recovery boot Checksum BIOS ROM Go to BIOS Set Huge Segment Initialize Multi Processor...
POST Codes There are two types of POST codes: Progress Codes and Error Codes. Progress Codes are designed to show the execution point while booting or executing services. Error Codes are designed to halt on exceptional (fatal) error conditions. Component Codes The Component Code is an unsigned integer value that is assigned by the build process.
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Table 4-4. Component Codes Range Description 0xa0-0xaf These values are reserved for SecureCore Tiano™ platform components. POSTCODE_CC_PLATFORM_STAGE0 (0xa0) - Early PEI Platform Initialization. POSTCODE_CC_PLATFORM_STAGE1 (0xa1) -PEI Platform Initialization. POSTCODE_CC_PLATFORM_DXE (0xa1) - DXE Platform Initialization. POSTCODE_CC_PLATFORM_SMM (0xa1) - SMM Platform Initialization. POSTCODE_CC_PLATFORM_FLASH (0xa2) - Flash Platform Initialization.
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Table 4-4. Component Codes Range Description 0xe0-0xff These are not components, but rather represent Architectural Progress Codes or Error Codes detailing milestones in the system boot progress. The corresponding Progress Code value is always set to zero. POSTCODE_PC_SEC_ENTRY (0xe0) - Reset vector. POSTCODE_PC_SEC_EXIT (0xe1) - Leaving SEC/Going to PEI.
Progress Codes This section describes the progress code values. Table 4-5. Progress Codes Range Description 0x00-0x1f Standard progress Codes. All other values are reserved. POSTCODE_PC_COMP_PEI_BEGIN (0x01) - The component was loaded and the PEI entry point called. POSTCODE_PC_COMP_PEI_END (0x02) - The component returned from the PEI entry point.
Jumper and Connector Locations Mainboard Layout Figure 5-1. Mainboard Top Table 5-1. Mainboard Top Code Component Code Component MSATA1 mSATA Connector CARD1 Card reader connector PCH1 ® RAM1~8 Onboard memory Mobile Intel HM77 Chipset BTY1 Battery connector CPU1 SPK1 Speaker connector WLAN1 WLAN Power button...
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Figure 5-2. Mainboard Bottom Table 5-2. Mainboard Bottom Code Component EDP1 LCD connector L_DB1 LED connector CCD1 Camera and touch screen connector H_DB1 DMIC small board connector Touchpad connector Keyboard connector FAN2 Small fan connector FAN1 Big fan connector EL small board connector Jumper and Connector Locations...
Clearing Password Check and BIOS Recovery This section provides procedures for: Clearing the BIOS passwords Performing a BIOS recovery Clearing the BIOS Passwords To clear a lost BIOS password (user or supervisor password), you need to short the clear password hardware gap (G2201) located on the mainboard.
13. Turn on the computer and press F2 during bootup to access the Setup Utility. If no password prompt appears, the BIOS passwords have been cleared. If the prompt appears, repeat steps 2-13 until the BIOS passwords have been cleared. 14.
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FRU (Field Replaceable Unit) List This chapter provides users with a FRU (Field Replaceable Unit) listing in global configurations for the Aspire S7-391. Refer to this chapter whenever ordering for parts to repair or for RMA (Return Merchandise Authorization). NOTE:...
Test Compatible Components This computer’s compatibility is tested and verified by Acer’s internal testing department. All ® of its system functions are tested under Windows 7 environment. Refer to the following lists for components, adapter cards, and peripherals which have passed these tests.
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UMA (Intel) KI.23200.038 INTEL NB Chipset 10001067 HM77 NB Chipset Intel CS HM77 Chief KI.G7501.002 INTEL River Keyboard 10001044 AU2P_A10SL Keyboard CHICONY AU2P_A10SL NK.I1213.001 CHICONY AU2P Internal 12 Standard Silver NONE Y2010 Acer Legend Win 8 Backlit Test Compatible Components...
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EK embedded" Miscellaneous 10000981 Ambient Light Ambient Light Sensor_2 Capella NC.25311.002 Sensor_2 CM3218 MISC 10000981 Acer USB to Acer USB to Ethernet cable(White) NC.23811.00A Ethernet MISC cable(White) 10000981 Glass White A Cover Glass (White) NC.21011.00R MISC 10000981 Acer HDMI(D) to Acer HDMI(D) to VGA NC.23811.008...
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Mouse Mouse MS.20700.005 TIME VENDER 820123 Mouse_MT1BF Acer Mouse - Bluetooth Darfon NC.20711.004 DARFON MT1BF White Acer Logo White Acer Logo 10001012 Wiping KB Cloth Wiping KB Cloth Ultra Book 315 x 200 NC.23511.006 COMPAL 0.2mm White 006 10000981 MISC...
This section describes online technical support services available to help users repair their Acer Systems. For distributors, dealers, ASP or TPM, please refer the technical queries to a local Acer branch office. Acer Branch Offices and Regional Business Units may access our website.
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