1. Inngangur
Welcome to the user manual for your new LTC NB681 Nimbleback Wired 65% Mechanical Keyboard. This guide provides detailed instructions on setting up, operating, maintaining, and troubleshooting your keyboard to ensure optimal performance and longevity. Please read this manual thoroughly before using the product.

Figure 1: LTC NB681 Nimbleback Wired 65% Mechanical Keyboard
Video 1: LTC NB681 65% Hot Swappable Keyboard OverviewÞetta myndband veitir almenna yfirsýnview of the keyboard's features and design.
Video 2: LTC Nimbleback NB681 Keyboard. This video showcases the keyboard's aesthetics and some functionalities.
2. Helstu eiginleikar
The LTC NB681 Nimbleback Keyboard is designed with a range of features to enhance your typing and gaming experience:
- Compact but Practical 65% Layout: Ultra-compact design with 68 keys, balancing functionality with space-saving. Includes practical arrow, navigation, and control keys.
- Skiptihnappar sem hægt er að skipta um heitt: Features a hot-swap PCB, allowing free replacement of 3-pin/5-pin MX-style switches (e.g., Gateron, Kailh). Equipped with quiet linear red switches for nimble reactions and quiet typing.
- 2 USB 2.0 Ports and Type-C Wired Connection: Two built-in USB passthrough ports for connecting peripheral devices like a mouse or flash drive, or for charging mobile devices. The Type-C wired connection ensures high-speed and stable data transmission.
- Dynamísk RGB baklýsing: Offers 18 preset backlight modes with 5 adjustable brightness and flowing speed levels, providing gorgeous color schemes and reactive effects.
- Professional Software Support: Customize keypress combinations, assign macros, and personalize RGB lighting effects using the powerful LTC drive software. Compatible with Windows 7/8/10, iOS, and Mac systems.

Figure 2: Visual representation of key features including 68-keys, 2 USB ports, detachable Type-C cable, hot-swappable switch, ergonomic angle, RGB backlit, stand-alone arrow keys, and anti-ghosting.
3. Uppsetning
Follow these steps to set up your LTC NB681 keyboard:
- Unbox: Carefully remove the keyboard and all accessories from the packaging. Ensure you have the keyboard, USB-C cable, and any included tools (e.g., keycap puller, switch puller).
- Tengdu USB-C snúruna: Plug the USB-C end of the provided cable into the Type-C port on the keyboard. Connect the other end (USB-A) to an available USB port on your computer.
- Upphafleg viðurkenning: Tölvan þín ætti sjálfkrafa að greina og setja upp nauðsynlega rekla. Þetta gæti tekið smá stund.
- Staðsetning: Place the keyboard on a stable, flat surface. You can adjust the typing angle using the foldable feet on the underside of the keyboard for ergonomic comfort.
- Uppsetning hugbúnaðar (valfrjálst en mælt með): For advanced customization, download the LTC drive software from the official LTC website. Install it on your Windows or Mac system to remap keys, assign macros, and customize RGB lighting.
Video 3: LTC NB681 Keyboard Unboxing! This video demonstrates the unboxing process and shows the included accessories.

Figure 3: Close-up of the keyboard's 2 built-in USB 2.0 passthrough ports and the detachable Type-C wired connection port.
4. Notkun lyklaborðsins
4.1 Grunnaðgerðir
- Staðlað vélritun: The keyboard functions as a standard QWERTY keyboard.
- Arrow, Navigation, and Control Keys: Despite its compact size, the NB681 includes dedicated arrow keys and essential navigation/control keys for convenience.
4.2 RGB baklýsingarstýring
The NB681 features dynamic RGB backlighting with multiple customization options:
- Skipt um hátt: Ýttu á Fn + \| (pipe key) to cycle through 18 preset backlight modes.
- Stilla birtustig: Notaðu Fn + ör upp til að auka birtustig og Fn + ör niður til að minnka birtustig (5 stig).
- Aðlögun hraða: Notaðu Fn + Vinstri ör to decrease flowing speed and Fn + Hægri ör to increase flowing speed (5 levels).

Mynd 4: Lyklaborðssýninginasing its dynamic 16.8 million RGB backlight with 19 modes and 5 brightness/speed levels.
4.3 Skiptihnappar sem hægt er að skipta um án hita
The hot-swappable design allows you to easily change switches without soldering:
- Fjarlægðu lyklakippuna: Notaðu meðfylgjandi lyklakipputrekkjara til að fjarlægja varlega viðkomandi lyklakippu.
- Fjarlægja rofa: Use the included switch puller to carefully grip the switch and pull it straight up.
- Setja inn nýjan rofa: Align the pins of the new 3-pin or 5-pin MX-style switch with the holes on the PCB. Press firmly until it clicks into place.
- Skipta um lyklakippu: Settu lyklakippuna aftur á nýja rofann.

Figure 5: Close-up demonstrating the hot-swappable switch feature, allowing easy replacement of 3-pin or 5-pin mechanical switches.
Video 4: LTC NB681 Red Switch Keyboard Sound Test. This video provides an audio demonstration of the keyboard's red switches.
4.4 Professional Software Customization
The dedicated software allows for in-depth customization:
- Endurmöppun lykla: Change the function of any key to suit your preferences.
- Macro Assignment: Create and assign complex macros for gaming or productivity tasks.
- RGB lýsingaraðlögun: Design your own lighting effects, colors, and patterns beyond the preset modes.

Figure 6: Screenshot showing the professional software interface for customizing RGB backlight, remapping keys, and assigning macros.
5. Viðhald
Rétt viðhald tryggir langlífi og afköst lyklaborðsins:
- Regluleg þrif: Use a soft brush or compressed air to remove dust and debris from between the keycaps. For deeper cleaning, remove keycaps and wipe the surface with a slightly damp cloth. Ensure the keyboard is disconnected before cleaning.
- Umhirða rofa: The hot-swappable design makes switch replacement easy if a switch becomes faulty or if you wish to try different switch types. Avoid excessive force when inserting or removing switches to prevent damage to the PCB sockets.
- Kapalstjórnun: Keep the USB-C cable untangled and avoid sharp bends to prevent internal wire damage.
6. Bilanagreining
If you encounter issues with your LTC NB681 keyboard, try the following steps:
- Lyklaborðið svarar ekki:
- Gakktu úr skugga um að USB-C snúran sé vel tengd bæði við lyklaborðið og tölvuna.
- Prófaðu að tengja lyklaborðið við aðra USB tengi á tölvunni þinni.
- Prófaðu lyklaborðið á annarri tölvu til að ákvarða hvort vandamálið sé í lyklaborðinu eða upprunalegu tölvunni.
- RGB ljós virka ekki/rangt:
- Check the brightness settings using Fn + Upp/Niður ör.
- Fletta á milli mismunandi lýsingarstillinga með því að nota Fn + \|.
- If using the software, ensure the lighting profiles are correctly applied and the software is up to date.
- Keys Not Registering/Double Typing:
- This could indicate a faulty switch. Use the switch puller to remove the problematic switch and replace it with a spare or a known good switch.
- Gakktu úr skugga um að rofinn sé alveg settur í innstunguna sína.
- Hugbúnaður þekkir ekki lyklaborðið:
- Ensure the keyboard is connected directly to the computer (avoiding USB hubs if possible).
- Endurræstu tölvuna þína og hugbúnaðinn.
- Reinstall the LTC drive software.
If these steps do not resolve the issue, please contact LTC customer support for further assistance.
7. Tæknilýsing
| Eiginleiki | Lýsing |
|---|---|
| Gerðarnúmer | NB681 |
| Skipulag | 65% (68 lyklar) |
| Tengingar | USB Type-C snúru |
| Rofar | Hot-Swappable (3-pin/5-pin MX-style compatible) |
| Baklýsing | RGB (18 preset modes, 5 brightness/speed levels) |
| USB gegnumganga | 2 x USB 2.0 tengi |
| Samhæfni | Windows 7/8/10, iOS, Mac |
| Þyngd hlutar | 2 pund |
| Mál | 14.96 x 6.14 x 1.92 tommur |
| Framleiðandi | LTC |

Figure 7: Comparison of the ultra-compact 68-key design with a full-size keyboard, highlighting its space-saving benefits.

Figure 8: Illustration of the ergonomic design with foldable feet for 10-degree and 5-degree typing angles, and anti-slip pads.
8. Ábyrgð og stuðningur
For detailed warranty information and customer support, please refer to the official LTC websíðunni eða kaupskjölunum þínum.
You can also find additional resources and a downloadable PDF user manual here: Opinber notendahandbók (PDF)
For more products and support, visit the LTC Store on Amazon.





