1. Úvod
This manual provides detailed instructions for the installation, operation, and maintenance of your YL91F-V LCD Display Bicycle Computer. This intelligent display is designed to enhance your riding experience on Lankeleisi electric bicycles by providing essential information at a glance.
2. Důležitá poznámka ke kompatibilitě
Please read this section carefully before proceeding with installation or use.
The LCD display for electric bicycles is not universal. It is crucial that your original meter is YL91F or YL91F-V. If your current display does not match these models, this product is not compatible with your e-bike. Furthermore, the wire interface of this display must be exactly the same as your existing connection for proper functionality.
If you require a different type of LCD meter for Lankeleisi or Dukawey e-bikes, please contact the manufacturer or seller for assistance.
3. Konec produktuview
The YL91F-V LCD Display Bicycle Computer consists of the main display unit and a separate control unit, connected by a cable. It provides real-time data such as speed, distance, battery level, and error codes.

Obrázek 3.1: Přední strana view of the YL91F-V LCD Display Bicycle Computer, showing the screen interface with battery, speed, error, and odometer readings. The display is mounted on a handlebar bracket.

Figure 3.2: The YL91F-V LCD Display unit and its separate control unit, connected by a cable. The control unit features buttons for power, mode, and navigation.

Obrázek 3.3: Zadní view of the YL91F-V LCD Display, showing the mounting bracket and cable connection point. The control unit is also visible, highlighting its ergonomic design.
4. Nastavení a instalace
Before installation, ensure your e-bike is powered off and the battery is disconnected for safety.
- Montáž displeje: Securely attach the YL91F-V LCD display unit to your e-bike's handlebar using the integrated mounting bracket. Ensure it is positioned for optimal visibility and does not obstruct steering or other controls.
- Namontujte řídicí jednotku: Attach the separate control unit to a convenient location on your handlebar, typically near your thumb for easy access to buttons.
- Připojit kabely: Carefully connect the display unit's cable to the corresponding port on your e-bike's wiring harness. Ensure the connection is firm and secure. Verify that the wire interface matches exactly as per the compatibility note.
- Bezpečné zapojení: Veďte a zajistěte všechny kabely tak, aby se nezachytávaly nebo nepřekážely pohyblivým částem. V případě potřeby použijte kabelové stahovací pásky.
- Zapnutí: Reconnect your e-bike's battery and power on the system. The display should illuminate and show initial readings.

Obrázek 4.1: Shora dolů view illustrating the mounting points on the YL91F-V LCD Display and the control unit, showing how they attach to the handlebar.
5. Návod k obsluze
The YL91F-V display provides various functions and data. Familiarize yourself with the control unit buttons:
- Vypínač: Press and hold to turn the display on/off.
- Tlačítko režimu: Short press to cycle through different display modes (e.g., ODO, TRIP, MAX, AVG).
- Tlačítko nahoru (+): Increase assistance level or navigate menu options.
- Tlačítko dolů (-): Decrease assistance level or navigate menu options.
- Světelné tlačítko: Turn the e-bike's lights on/off (if connected and supported).
Informace o displeji:
- Úroveň baterie: Zobrazuje zbývající nabití baterie.
- Aktuální rychlost: Shows your real-time riding speed (KM/H or MPH).
- Assistance Level (PAS): Displays the current pedal assistance level.
- Počítadlo kilometrů (ODO): Total distance traveled by the e-bike.
- Trip Distance (TRIP): Ujetá vzdálenost během aktuální jízdy.
- Maximální rychlost (MAX): Highest speed reached during the current ride.
- Průměrná rychlost (AVG): Average speed during the current ride.
- Kódy chyb: Displays specific codes if a system error occurs. Refer to the troubleshooting section for common codes.
6. Údržba
Proper maintenance ensures the longevity and optimal performance of your YL91F-V display.
- Čištění: Otřete displej a tělo měkkým hadříkemamp tkanina. Nepoužívejte abrazivní čisticí prostředky nebo rozpouštědla.
- Vystavení vodě: While the display is designed to be splash-resistant, avoid submerging it in water or exposing it to heavy rain for prolonged periods.
- Kontrola kabelů: Periodically check all cables and connections for signs of wear, damage, or looseness. Ensure connections remain secure.
- Skladování: When not in use for extended periods, store the e-bike and display in a dry, temperate environment.
7. Řešení problémů
This section addresses common issues you might encounter with your YL91F-V display.
| Problém | Možná příčina | Řešení |
|---|---|---|
| Displej se nezapne. |
|
|
| Žádné rychlé čtení. |
|
|
| Zobrazený chybový kód. |
| Error codes indicate specific issues. Consult your e-bike's main manual for a list of error codes and their meanings. If the code is not listed or you cannot resolve it, contact customer support. |
8. Specifikace
| Číslo modelu | YL91F-V (For dual motor bike) |
| Typ zobrazení | LCD |
| Velikost obrazovky | 4.5 palce (105x55 mm) |
| Barva | Černý |
| Materiál | Plast |
| Zahrnuté komponenty | Zobrazovací jednotka LCD |
| Typ snímače | Speed Sensor (integrated/compatible) |
| Výrobce | Yolin |
9. Záruka a podpora
For warranty information and technical support, please refer to the documentation provided with your e-bike or contact the seller/manufacturer directly. Ensure you have your purchase details and the product's model number (YL91F-V) ready when seeking support.
If you need to return the product, please ensure it is packaged in a strong box to prevent damage during transit.