Lenovo G70-35, G70-70, G70-80 US English Keyboard Instruction Manual

1. Introduction

This document provides comprehensive instructions for the installation, operation, and maintenance of your new replacement US English keyboard for Lenovo IdeaPad G70-35, G70-70, and G70-80 series laptops. Please read this manual thoroughly before attempting any installation or use to ensure proper function and to avoid damage.

This keyboard features a US English layout, black keys, and an integrated black frame. It does not include a backlight function or a mouse point.

2. Compatibility and Verification

This replacement keyboard is compatible with the following Lenovo IdeaPad laptop models:

• Lenovo IdeaPad G70-35
• Lenovo IdeaPad G70-70
• Lenovo IdeaPad G70-80

Important: Before proceeding with installation, carefully compare your original keyboard with the images provided in this manual. Ensure that the layout, frame, and ribbon cable connector match exactly. If there are any discrepancies, contact your supplier to confirm compatibility before attempting installation.

Figure 2.1: Front view of the replacement keyboard, showing the US English layout with black keys and frame.

Figure 2.2: Back view of the replacement keyboard, highlighting the flexible ribbon cable connector used to interface with the laptop's motherboard.

3. Setup and Installation

Warning: Laptop keyboard replacement can be complex and may require specialized tools and knowledge. If you are not comfortable performing this procedure, it is highly recommended to seek assistance from a qualified technician to prevent damage to your laptop or the new keyboard.

3.1 Preparation

1. Power Off: Completely shut down your laptop.
2. Disconnect Power: Unplug the AC adapter from the laptop.
3. Remove Battery: If your laptop has a removable battery, remove it. For internal batteries, disconnect the battery cable from the motherboard if possible.
4. Static Discharge: Discharge any static electricity from your body by touching a grounded metal object.
5. Tools: Gather necessary tools, which may include a small Phillips head screwdriver, a plastic pry tool, and possibly tweezers.

3.2 Removal of Old Keyboard

The exact method for removing the old keyboard varies by laptop model. Consult your laptop's specific service manual for detailed instructions. General steps often include:

1. Locate Retention Mechanisms: Identify any screws on the bottom of the laptop that secure the keyboard, or clips/latches around the keyboard bezel.
2. Carefully Pry/Lift: Using a plastic pry tool, gently lift the keyboard from its housing. Be cautious not to damage the surrounding plastic.
3. Disconnect Ribbon Cable: Once the keyboard is partially lifted, locate the ribbon cable connecting it to the motherboard. Carefully unlock the ZIF (Zero Insertion Force) connector and gently pull out the ribbon cable.
4. Remove Old Keyboard: Set the old keyboard aside.

3.3 Installation of New Keyboard

1. Connect Ribbon Cable: Carefully insert the new keyboard's ribbon cable into the ZIF connector on the motherboard. Ensure it is fully seated and then lock the connector.
2. Position Keyboard: Align the new keyboard with its housing in the laptop.
3. Secure Keyboard: Gently press the keyboard into place, ensuring all clips engage or screws are re-inserted and tightened (if applicable).
4. Reconnect Components: Reconnect the battery cable (if disconnected) and re-insert the main battery.
5. Power On: Reconnect the AC adapter and power on your laptop to test the new keyboard.

4. Operating the Keyboard

This keyboard functions as a standard US English layout keyboard. All keys operate as labeled. Special function keys (F1-F12) typically require pressing the Fn key simultaneously to activate their secondary functions (e.g., volume control, brightness adjustment). Refer to your laptop's user manual for specific details on function key operations.

5. Maintenance

To ensure the longevity and proper function of your keyboard, follow these maintenance guidelines:

• Cleaning: Use a soft, lint-free cloth slightly dampened with water or a mild cleaning solution to wipe the keycaps. Avoid excessive moisture.
• Dust Removal: Use compressed air to remove dust and debris from between the keys.
• Avoid Spills: Keep liquids away from the keyboard to prevent damage.
• Gentle Use: Avoid excessive force when typing.

6. Troubleshooting

If you encounter issues with your new keyboard, consider the following troubleshooting steps:

• Keyboard Not Responding:
  • Ensure the ribbon cable is securely connected to the motherboard.
  • Restart your laptop.
  • Check device manager for keyboard drivers. Reinstall if necessary.
• Certain Keys Not Working:
  • Inspect for any debris lodged under the keys.
  • Verify the ribbon cable connection.
• Incorrect Key Output:
  • Check your operating system's keyboard language settings to ensure it is set to "US English".

If problems persist after attempting these steps, contact technical support or a qualified technician.

7. Specifications

8. Warranty and Support

This product comes with a 12-month warranty from the date of purchase. This warranty covers manufacturing defects. It does not cover damage caused by improper installation, misuse, accidents, or unauthorized modifications.

For warranty claims or technical support, please contact your original point of purchase or the seller directly. Provide your purchase details and a clear description of the issue.