Introduction
Welcome to the user manual for your Logitech ALTO KEYS K75M Wireless Mechanical Keyboard. This guide provides detailed instructions on setting up, operating, and maintaining your keyboard to ensure optimal performance and a personalized typing experience. Please read this manual thoroughly before using your new keyboard.
Image: Logitech K75M Customized Wireless Mechanical Keyboard highlighting hot plugging, shock absorption, and compact design.
Key Features
- Customized Wireless Mechanical Keyboard: Designed for a personalized and efficient typing experience.
- UniCushion Gasket Structure: Integrated shock relief large midsole for pure sound and comfortable touch.
- Hot-Plug Marble Shaft: High-precision tuning for linear, smooth, stable, and sensitive typing with a melodious keypad tone. Supports unlimited DIY customization.
- Translucent Shell & PBT Keycaps: Visually appealing design that showcases internal technology and allows pure white light to create an immersive working atmosphere.
- Long-lasting Wireless Freedom: Equipped with a USB-C charging port, offering up to 12 months of usage in backlight-off mode.
- 75-Column Layout: Small and compact design optimized for various desktop spaces.
- Adjustable Tilt Angle: Natural tilt of 4° (without foot brace) and 8° (with foot brace) to suit different typing habits.
- Multi-Device & Multi-System Compatibility: Secure and stable connection via Bluetooth or Logi Bolt receiver. Easy-Switch button allows pairing with up to 3 devices across Windows, macOS, Linux, Chrome OS, iPadOS, iOS, and Android.
- AI Smart Key: One-click activation of an intelligent dispatching console via the Logi Options+ application for enhanced productivity.
- Customizable F-Keys: 12 customizable F keys for efficient office mode, with a dedicated 'Fun game mode' activated by Fn + Esc.
Image: Exploded view diagram illustrating the internal components of the keyboard, including the translucent upper cover, PBT PC keycap, hot plug marble shaft, silencer cotton, PCB, UniCushion gasket, and PCR bottom cover.
Package Contents
Ensure all items are present in the package:
- Wireless mechanical keyboard
- USB-C charging cable
- Logi Bolt USB receiver
- User documentation
Image: The retail packaging for the ALTO KEYS K75M, showing the keyboard and its included accessories.
Specifications
| Feature | Detail |
|---|---|
| Model | K75M |
| Keyboard Standard | 82 Key |
| Operation Style | Mechanical |
| Keycup Material | PBT plastic |
| Switches Hot Swap | Yes |
| Interface Type | USB (for charging/wired mode), Bluetooth Wireless |
| Connectivity | Bluetooth TM low power consumption (Bluetooth 5.1), Logi Bolt USB receiver |
| Wireless Range | About 10 meters (varies depending on usage environment) |
| Compatibility | Windows 10, 11, or later; macOS 11 or later; Linux®; Chrome OS; iPadOS 14 or later; iOS 14 or later; Android TM 9.0 or later |
| Battery Included | Yes |
| Battery Life | Up to 12 months in backlight off mode (estimated) |
| Depth | About 147mm |
| Weight | About 950g |
| Certification | CE |
Setup
- Charge the Keyboard: Connect the provided USB-C charging cable to the keyboard's USB-C port and the other end to a power source (e.g., computer USB port, USB wall adapter). The charging indicator will show the charging status.
- Choose Your Connection Method:
- Logi Bolt USB Receiver: Plug the Logi Bolt USB receiver into an available USB port on your computer. The keyboard should automatically connect.
- Bluetooth Wireless:
- Turn on the keyboard's Bluetooth.
- On your device (computer, tablet, phone), go to Bluetooth settings and search for new devices.
- Select 'Logitech K75M' from the list of available devices to pair.
- Pair Multiple Devices (Easy-Switch): Your keyboard can be paired with up to three devices. Use the Easy-Switch buttons (usually labeled 1, 2, 3) to switch between paired devices. To pair a new device, press and hold an unassigned Easy-Switch button until the indicator light blinks rapidly, then follow the Bluetooth pairing steps above.
Image: Diagram illustrating multi-device connection capabilities via Bluetooth and Logi Bolt receiver, showing compatibility with various operating systems and the Easy-Switch button.
Operating Instructions
- Power On/Off: Locate the power switch on the keyboard (typically on the side or back) and slide it to the 'ON' or 'OFF' position.
- Adjust Backlight: Press the F4 key to adjust the brightness of the backlight. There are 7 levels of brightness. Pressing F4 an eighth time will turn the backlight off. The keyboard initially sets the default brightness to gear 4.
- AI Smart Key Functionality: The AI Smart Key can be customized using the Logi Options+ application. This allows for one-click activation of intelligent dispatching console features to enhance productivity.
- F-Key Customization & Game Mode: The 12 F keys (F1-F12) are customizable for efficient office use. To switch to 'Fun game mode', press Fn + Esc.
- Adjust Keyboard Tilt: The keyboard has a natural tilt of approximately 4° when the foot brace is not open. Open the foot brace to achieve a natural tilt of about 8°, meeting the needs of different typing habits for comfortable and relaxed use.
Image: The keyboard with its backlight on, showing the F4 key and a visual representation of the 7 brightness levels and the option to turn off the light.
Image: Diagram explaining the AI Smart Key and its integration with the Logi Options+ Application for customized intelligent dispatching.
Image: Diagram showing the 12 customizable F keys and the Fn + Esc combination for activating 'Fun game mode'.
Image: Side view of the keyboard demonstrating the 4° and 8° tilt angles, achieved by adjusting the integrated foot brace.
Video: A short demonstration of the Logitech K75M keyboard in use, showcasing its design and features.
Maintenance
- Cleaning: Use a soft, lint-free cloth to wipe the keyboard surface. For deeper cleaning, you can use a can of compressed air to remove dust and debris from between the keycaps. Avoid using harsh chemicals or abrasive materials.
- Battery Care: To prolong battery life, avoid fully discharging the keyboard frequently. Charge it when the battery indicator is low. If storing the keyboard for an extended period, charge it to about 50% before storage.
- Keycap Removal: The hot-swappable design allows for easy keycap and switch removal. Use a keycap puller and switch puller (if included or purchased separately) to carefully remove components for cleaning or customization.
Troubleshooting
- Keyboard Not Connecting:
- Ensure the keyboard is powered on and fully charged.
- For Bluetooth, check if Bluetooth is enabled on your device and the keyboard is in pairing mode. Try re-pairing the device.
- For Logi Bolt, ensure the receiver is securely plugged into a working USB port.
- Try connecting the keyboard via USB-C cable to see if it functions in wired mode.
- Backlight Not Working:
- Press F4 multiple times to cycle through brightness levels.
- Ensure the keyboard battery is not critically low.
- Keys Not Responding:
- Check the connection (Bluetooth or Logi Bolt).
- Restart the keyboard and your connected device.
- If specific keys are not responding, consider removing the keycap and switch (due to hot-swappable design) to check for debris or damage.
- Lag or Disconnections:
- Ensure the keyboard is within the 10-meter wireless range of your device.
- Minimize interference from other wireless devices.
- Ensure your device's Bluetooth drivers are up to date.
User Tips
- Customize with Logi Options+: Download and explore the Logi Options+ application to fully utilize the AI Smart Key and customize F-key functions to streamline your workflow.
- Leverage Multi-Device Switching: Use the Easy-Switch buttons to quickly transition between typing on your computer, tablet, or smartphone, enhancing productivity across all your devices.
- Experiment with Switches: Since the keyboard is hot-swappable, consider trying different compatible mechanical switches to find the typing feel that best suits your preference.
- Optimize Backlight: Adjust the backlight brightness to suit your environment. Turning off the backlight when not needed can significantly extend battery life.
Warranty and Support
For warranty information, technical support, or service inquiries, please refer to the official Logitech website or contact their customer support directly. Keep your proof of purchase for warranty claims.
