Ремонт ноутбука Acer Aspire 5560g(Wistron JE50 SB). Неисправность дискретного видео.

Introduction

This tutorial provides a step-by-step guide on repairing the Acer Aspire 5560g laptop, specifically addressing issues related to discrete video malfunctions. The guide is designed for those who want to troubleshoot and fix their laptop problems, enhance their electronics repair skills, and gain insights into POST cards and LPC buses.

Step 1: Gather Necessary Tools and Equipment

Before starting the repair, ensure you have the following tools:

• Phillips screwdriver set
• Anti-static wrist strap
• Multimeter for testing components
• Soldering iron (if required)

Practical Tips

• Work in a well-lit area to clearly see the laptop's internal components.
• Keep a container handy for screws and small parts to avoid losing them.

Step 2: Disassemble the Laptop

Follow these steps to safely open your laptop:

1. Power Down the Laptop: Turn off the laptop and unplug it from the power source.
2. Remove the Battery: Take out the battery to prevent any electrical issues.
3. Unscrew the Back Panel: Use a Phillips screwdriver to remove the screws holding the back panel in place.
4. Gently Pry Open the Panel: Carefully use a plastic spudger to avoid damaging the casing.

Common Pitfalls

• Avoid using excessive force when prying open the panel to prevent breaking clips or damaging the casing.

Step 3: Inspect the Discrete Video Card

Once the laptop is open, locate the discrete video card. Conduct the following checks:

• Visual Inspection: Look for any burnt components, loose connections, or damaged solder joints.
• Test Connections: Use a multimeter to check continuity in the connections.

Practical Advice

• If you find any damaged solder joints, you may need to reflow the solder with a soldering iron.

Step 4: Check the POST Card and LPC Bus

Understanding the POST card and LPC bus can help diagnose issues:

• POST Card: This tool helps identify errors during the Power-On Self-Test phase. Connect it to the appropriate slot on the motherboard.
• LPC Bus: Check for any faults in the LPC bus connections, as they can affect communication with the discrete video card.

Tips for Troubleshooting

• If the POST card displays error codes, refer to the laptop’s manual or online resources to identify the issues.

Step 5: Reassemble the Laptop

After completing repairs and checks, reassemble the laptop:

1. Replace the Back Panel: Align it correctly and press it down gently.
2. Screw Back the Panel: Secure it with the screws you previously removed.
3. Reinstall the Battery: Place the battery back into its compartment.

Final Check

• Ensure that all screws are tight and the laptop is properly sealed before powering it on.

Conclusion

In this tutorial, you learned how to diagnose and repair discrete video issues on the Acer Aspire 5560g laptop. By following these steps, you can enhance your troubleshooting skills and gain a better understanding of laptop components. If problems persist after your repairs, consider seeking professional help or further educational resources in electronics repair.