Acer Aspire C27-1800 - Computer Manual

Self-Repair

This chapter highlights the limited self-repair capabilities of the product.
Prior to performing self-repair, familiarize yourself with the Safety Guidelines and Recommended Equipment sections first as described in the chapter "Disassembly Procedures".
Depending on model, the following key components are eligible for self-repair (if applicable):

• PSU module
• HDD / SSD module
• DIMM module(s)
• WLAN module
• ODD module

If a particular key component is listed and thus would be eligible for self-repair, but is not described in the "Disassembly Procedures" section, then this component is either not present on the respective model, or it is present but embedded on the motherboard and therefore not eligible for self-repair.
NOTE:
Do not attempt to replace other components than those listed above.
NOTE:
For replacement parts, always use only Acer certified components in order to safeguard quality, optimum system performance, stability and reliability of the product.
NOTE:
Any damage to the product that occur during self-repair, or which has occurred as a result of a careless or unsuccessful self-repair attempt, is not covered by the standard product warranty.

Disassembly Procedures
Please refer to the "Disassembly Procedures" chapter for step by step disassembly instructions.

System BIOS & Driver Updates
Visit http://www.acer.com/supportto discover the available system BIOS and Drivers for this product. After selecting the desired country/language, either enter the model name or product serial number, or select the product from the list of suggested models in order to get access to product-specific software and documentation.

Updating the System BIOS:

• Download the desired system BIOS version from the website.
• Unzip the downloaded file to your computer.
• Double-click the extracted file in order to initiate the update process.
• The update process itself is fully automated and its progress is visualized by means of a progress indicator.
• A visual notification is shown when the update is complete.

NOTE:
Upgrading the system BIOS incorrectly, or intermittence of the system BIOS update process could harm the product.
NOTE:
System BIOS upgrades or downgrades, if not performed by an Acer Service Center or authorized Service Partner, are at own risk.

Updating the Drivers:
Run Windows Update in order to get the latest drivers from Acer:

• Select theStart button.
• Go toSettings > Update & Security > Windows Update .
• Available Drivers will be automatically listed on the screen.
• PressDownload to start the download of the respective driver.
• Installation of the driver will start automatically once the download is completed.

Disassembly Procedures

Safety Guidelines
This chapter contains step by step procedures on how to remove and de-install components from the computer. Use the following safety guidelines to ensure your personal safety. Each procedure included in this chapter assumes that you are preparing your computer for recycling and disposal. By performing any of these procedures you acknowledge that any remaining warranty applicable to your computer will be voided. Before you start any of the procedures in this chapter, make sure to read the following safety guidelines and the respective instructions within the chapter.

• Turn off your computer and disconnect all power sources before opening the computer cover or panels.
• To avoid electrostatic discharge, ground yourself by using a wrist grounding strap or by periodically touching an unpainted metal surface at the same time as touching a connector on the back of the computer.
• Take off any metal objects on your arms or fingers such as bracelets, rings or watches and make sure your hands are completely dry. Even if your unit is unplugged, there may still be some remaining electric charge.
• If a component does not come out easily, do not forcefully remove it. Instead, check that you are removing it correctly and that no wires or other parts are in the way.
• When you disconnect a cable, pull on its connector or on its pull-tab, not on the cable itself. Some cables have connectors with locking tabs; if you are disconnecting this type of cable, press in on the locking tabs before you disconnect the cable.

Recommended Equipment
The following equipment are recommended to do the following maintenance procedures:

• Wrist grounding strap and conductive mat
• Flat screwdriver
• Philips screwdriver
• Polydrive screwdriver
• Plastic tweezers
• Flat plastic pry

WEEE Annex VII Component
These components are classified as requiring selective treatment.

Pre-disassembly Instructions
Do the following prior to starting any maintenance procedures:

1. Place the system on a stable work surface.
2. Remove AC power cord from the system and peripherals
3. Remove all cables from the system.

NOTE:
Make sure the system is completely powered off.

Computer Stand Removal
Remove the Computer Stand

1. Detach the stand cover from the main cover assembly.
   
2. Remove the two screws and loosen the two captive screws securing the computer stand to the main chassis assembly.
   
3. Detach the computer stand from the main chassis assembly.
   

Main Cover Assembly Removal
Remove the Main Cover Assembly

1. Use a non-marring plastic tool to disengage the latches securing the rear cover assembly to the main chassis assembly.
   
2. Detach the rear cover assembly from the main chassis assembly.
   

HDD Removal
Remove the HDD

1. Remove the two screws securing the HDD bracket to the main chassis assembly.
   
2. Slide to disengage the HDD module from the main chassis assembly then lift it away.
   
3. Remove the four screws securing the HDD module to the bracket.
   
4. Gently remove the HDD bracket from the HDD module.
   

Mainboard Bracket/Cover Removal
Remove the Mainboard Bracket/Cover

1. Remove the eight screws securing the mainboard bracket/cover to the main chassis assembly.
   
2. Detach the mainboard bracket/cover from the main chassis assembly.
   

Memory Module Removal
Remove the Memory modules

1. Release the latch on both sides of the DIMM slot (1) and remove the DIMM module from the slot (2).
   Note: WEEE Annex VII component. A circuit board >10 cm2 has been highlighted with the yellow rectangle as shown above. Please follow local regulations for disposal of detached circuit boards.
   
2. Repeat Step 5.1 to remove the remaining memory module.

SSD Module Removal
Remove the SSD module

1. Detach the thermal pad from the SSD1 module.
   
2. Remove the screw securing the SSD module to the mainboard.
   
3. Remove the SSD module from the mainboard.
   

Note: WEEE Annex VII component. A circuit board >10 cm2 has been highlighted with the yellow rectangle as shown above. Please follow local regulations for disposal of detached circuit boards.

WLAN Module Removal
Remove the WLAN module

1. Disconnect the WLAN antenna cables from the WLAN module.
   NOTE: For reference during machine reassembly, note which cable color corresponds to the main and auxiliary connectors.
   
2. Remove the screw securing the WLAN module to the mainboard.
   
3. Remove the WLAN module from the mainboard.
   

Note: WEEE Annex VII component. A circuit board >10 cm2 has been highlighted with the yellow rectangle as shown above. Please follow local regulations for disposal of detached circuit boards.

Heatsink Fan Removal
Remove the Heatsink Fan

1. Disconnect the heatsink fan cable from the mainboard.
   
2. Release the heatsink fan cable from the latch securing it to the main chassis assembly.
   
3. Remove the adhesive tape securing the heatsink fan to the thermal module.
   
4. Remove the two screws securing the heatsink fan to the main chassis assembly.
   
5. Detach the heatsink fan from the main chassis assembly.
   

Thermal Module Removal

The heatsink becomes very hot when the system is on. Wait for the heatsink to cool off before proceeding with below steps.
Remove the Thermal Module

1. Loosen the three screws (1~3) and remove one screw (4) securing the thermal module to the mainboard.
   
2. Remove the thermal module from the mainboard.
   

Mainboard Removal
Remove the Mainboard

1. Disconnect the LVDS cable from the mainboard.
   
2. Disconnect the webcam cable from the mainboard.
   
3. Disconnect the LCD backlight cable from the mainboard.
   
4. Disconnect the speaker cable from the mainboard.
   
5. Remove the five screws securing the mainboard to the main chassis assembly.
   
6. Detach the mainboard from the main chassis assembly.
   

Note: WEEE Annex VII component. A circuit board >10 cm2 has been highlighted with the yellow rectangle as shown above. Please follow local regulations for disposal of detached circuit boards.

RTC Battery Removal
Remove the RTC battery

1. Gently push the RTC battery sideways (1), then lift it off the mainboard (2).
   

Note: WEEE Annex VII component. The RTC battery has been highlighted with the yellow circle as shown above. Please follow local regulations for disposal of used batteries.

Risk of explosion if battery is replaced by an incorrect type. Dispose of used batteries according to the instructions.

Speaker Removal
Remove the Speakers

1. Release the speaker cable from the latches securing it to the main chassis assembly.
   
2. Detach the speakers from the main chassis assembly.
   

WLAN Antenna Removal
Remove the WLAN Antenna

1. Release the WLAN antenna cables from the latches and adhesive tape securing them to the main chassis assembly.
   
2. Detach the WLAN antenna from the main chassis assembly.
   

Troubleshooting

This chapter provides troubleshooting information for the Aspire C27-1800 AIO Computer Service Guide.

• Power-On Self-Test (POST)
• POST Error Messages List

Power-On Self-Test (POST)
Each time you turn on the system, the Power-on Self Test (POST) is initiated. Several items are tested during POST, but for the most part transparent to the user.
The Power-On Self Test (POST) is a BIOS procedure that boots the system, initializes and diagnoses the system components, and controls the operation of the power-on password option. If POST discovers errors in system operations at power-on, it displays error messages on screen, generates a check point code at port 80h or even halts the system if the error is fatal.
The main components on the main board that must be diagnosed and/or initialized by POST to ensure system functionality are as follows:

• Microprocessor with built-in numeric co-processor and cache memory subsystem
• Direct Memory Access (DMA) controller
• Interrupt system
• Three programmable timers
• ROM subsystem
• RAM subsystem
• CMOS RAM subsystem and real time clock/calendar with battery backup
• Onboard parallel interface controller
• Embedded hard disk interface and one diskette drive interface
• Keyboard and auxiliary device controllers
• I/O ports
  • One parallel port
  • One PS/2-compatible mouse port
  • One PS/2-compatible keyboard port

POST Error Messages List
If you cannot run the diagnostics program tests but did receive a POST error message, use "POST Error
Messages List "to diagnose system problems. If you did not receive any error message, look for a description of your error symptoms in "Error Symptoms List".
If you are unable to correct the problem by using the "BIOS Messages List" table and "Error Symptoms List" table, go to "Undetermined Problems".
To diagnose a problem, first find the BIOS error messages in the left column. If directed to a check procedure, replace the FRU indicated in the check procedure. If no check procedure is indicated, the first Action/FRU listed in right column is the most likely cause.

Exploded Diagrams

FRU (Field Replaceable Unit) List

Please contact your local service center to find out how to obtain the part or replace your device

To remove your personal data

• Option 1: SelectStart > Settings >Update & Security > Recovery. Under Reset this PC, select Get started. Open Recovery settings.
• Option 2: Restart your PC to get to the sign-in screen, then press and hold down theShift key while you select the Power icon > Restart in the lower-right corner of the screen. After your computer restarts, select Troubleshoot > Reset this PC.
• Option 3: SelectStart , then press and hold down the Shift key while you select the Power icon > Restart to restart your computer into Recovery Mode. After your computer restarts, select Troubleshoot > Reset this PC.