KEYCOOL K21 Mechanical Number Keypad User Manual

1. Johdanto

This manual provides instructions for the KEYCOOL K21 Mechanical Number Keypad. The K21 is a versatile 21-key numeric keypad designed for enhanced productivity across various operating systems. It features triple-mode connectivity, hot-swappable switches, customizable RGB lighting, and programmable keys.

Kuva 1: Etuosa view of the KEYCOOL K21 Mechanical Number Keypad showcasinsen RGB-valaistus.

2. Asennus

2.1 Pakkauksen sisältö

Ennen kuin jatkat, varmista, että kaikki esineet ovat mukana:

• KEYCOOL K21 Mechanical Number Keypad
• USB-kaapeli
• 2.4 GHz: n USB-vastaanotin
• Näppäimistön vetäjä
• Kytkimen vedin
• Spare Switches (if included)
• Käyttöopas (tämä asiakirja)

Figure 2: Standard accessories included with the K21 keypad.

2.2 Charging the Keypad

The K21 keypad is equipped with a 1500mAh battery. For optimal performance, fully charge the keypad before first use.

1. Locate the USB-C port on the keypad.
2. Connect the provided USB-C cable to the keypad and to a power source (e.g., computer USB port, USB wall adapter).
3. Latauksen merkkivalo syttyy. Se muuttuu tai sammuu, kun akku on täysin latautunut.

2.3 Yhteystilat

The K21 supports three connection modes: Wired, 2.4GHz Wireless, and Bluetooth 5.0.

Figure 3: Location of connectivity components on the K21 keypad.

Figure 4: Detailed diagram of the keypad's connection points.

2.3.1 Langallinen tila

1. Ensure the keypad's ON/OFF switch is in the "OFF" position.
2. Connect the USB-C cable to the keypad's Type-C port and to your computer.
3. The keypad will be automatically recognized by your system.

2.3.2 2.4 GHz:n langaton tila

1. Locate the 2.4GHz USB receiver, usually stored in a dedicated slot on the keypad.
2. Liitä 2.4 GHz:n USB-vastaanotin tietokoneesi vapaaseen USB-porttiin.
3. Turn the keypad's ON/OFF switch to the "ON" position.
4. The keypad should connect automatically.

2.3.3 Bluetooth 5.0 -tila

K21 voi muodostaa yhteyden jopa kolmeen Bluetooth-laitteeseen.

1. Turn the keypad's ON/OFF switch to the "ON" position.
2. Press and hold the Bluetooth pairing key (refer to the keypad layout for specific key, often indicated by a Bluetooth icon or a combination with Fn).
3. The indicator light will flash, indicating pairing mode.
4. On your device (Laptop, Mac, Win, iOS, Android), go to Bluetooth settings and search for "KEYCOOL K21" or similar.
5. Select the keypad to pair. Repeat for other Bluetooth profiles haluttaessa.

2.4 Ergonominen muotoilu

The K21 wireless numeric keypad features a sloped design for comfortable use and includes silicone bottom cushions for stability.

Figure 5: Ergonomic design and dimensions of the K21 keypad.

3. Käyttö

3.1 Perusnäppäintoiminnot

The K21 is a 21-key numeric keypad. Standard numeric and arithmetic functions are available. Some keys may have secondary functions accessible via the Function (Fn) key.

Kuva 6: Päättynytview of the K21 keypad's features.

3.2 RGB-valaistuksen ohjaus

The K21 features adjustable RGB lighting effects.

• Fn + Takaisin: Turn ON/OFF the backlight.
• fn+6: Switch between different lighting effects.
• fn+7: Switch between different lighting colors.

Figure 7: Key combinations for controlling RGB lighting and hot-swappable switch design.

3.3-tilavuusrulla

The integrated volume roller allows for quick adjustment of system audio. Rotate the roller to increase or decrease volume. The roller may also have a press function for mute/unmute.

4. Räätälöinti

4.1 Käytön aikana vaihdettavat kytkimet

The K21 keypad supports hot-swappable 3-pin/5-pin mechanical switches, allowing users to change switches without soldering. This enables customization of typing feel and sound.

1. Using the provided switch puller, carefully remove the desired switch by gripping it firmly and pulling upwards.
2. Kohdista uuden kytkimen nastat piirilevyn reikiin.
3. Gently press the new switch into place until it clicks. Ensure it is seated properly and not bent.

Figure 8: Illustration of a hot-swappable switch being installed.

Figure 9: Components and characteristics of a typical mechanical switch.

4.2 Programmable Keys and Software

The K21 keypad features programmable keys, allowing users to customize key functions, macros, and lighting effects via dedicated software.

1. Download the official KEYCOOL K21 software from the manufacturer's websivusto: www.kc-keycool.com.
2. Install the software on your Windows or Mac computer.
3. Connect the K21 keypad to your computer via wired mode.
4. Launch the software to access customization options for key remapping, macro creation, and RGB lighting adjustments.

Figure 10: Software interface for personalizing key functions and lighting.

Figure 11: Further views of the customization software.

5. Huolto

5.1 Puhdistus

To maintain the keypad's appearance and functionality:

• Disconnect the keypad from all power sources and devices.
• Käytä pehmeää, nukkaamatonta liinaa dampened with a small amount of water or a mild cleaning solution to wipe the keycaps and casing.
• Poista pöly ja roskat näppäinten välistä paineilmalla tai pienellä harjalla.
• Vältä kovien kemikaalien tai hankaavien materiaalien käyttöä.

5.2 Kytkimen ja näppäinhatun hoito

The PBT keycaps are durable. If removing keycaps or switches for cleaning or replacement, use the provided tools to prevent damage.

6. Vianmääritys

6.1 Näppäimistö ei vastaa

• Langallinen tila: Ensure the USB-C cable is securely connected to both the keypad and the computer. Try a different USB port or cable.
• 2.4 GHz:n langaton tila: Verify the 2.4GHz USB receiver is properly inserted into a USB port. Ensure the keypad's ON/OFF switch is in the "ON" position.
• Bluetooth-tila: Check if the keypad is paired correctly in your device's Bluetooth settings. Ensure the keypad's ON/OFF switch is in the "ON" position. If the keypad goes to sleep, the first key press might not register; press a key twice to wake it up and ensure connection.
• Akku: Ensure the keypad is sufficiently charged. Connect it via USB-C to charge.

6.2 RGB-valaistusongelmat

• If RGB lighting is not working, ensure it is turned on using Fn + Takaisin.
• If specific keys are not lighting up, check if the switches are properly seated or if there's a software configuration issue.

6.3 Software Not Detecting Keypad

• Ensure the keypad is connected via wired mode when using the software.
• Verify that you have downloaded the correct software version for the K21 model from the official KEYCOOL websivusto.
• Try restarting your computer and the software.
• If the device is listed as "Unknown Device" in Device Manager (Windows), try reinstalling the driver or checking for driver updates.

6.4 Huono akunkesto

• High RGB brightness and continuous wireless usage can reduce battery life. Consider adjusting brightness or using wired mode when possible.
• Ensure the keypad is fully charged before use.

7. Tekniset tiedot

Table 1: Technical specifications of the KEYCOOL K21 Mechanical Number Keypad.

Figure 12: Visual representation of KEYCOOL K21 specifications and multi-device compatibility.

8. Videoesittely