1. Einleitung
The iSinbox JY821 Smart Projector is designed to provide a comprehensive entertainment experience. It features 4K decoding, 2500 ANSI lumens brightness, Dolby Audio, and a liquid cooling system. This manual provides instructions for setting up, operating, and maintaining your projector.
2. Lieferumfang
- Netzkabel
- HDMI-Kabel
- AV-Kabel
- Fernbedienung
- Bedienungsanleitung
3. Produktüberschreitungview
The iSinbox JY821 projector integrates advanced features for optimal performance and user convenience.
3.1 Hauptmerkmale
- Anzeige: Native 1080P resolution with full 4K decoding support, 2500 ANSI Lumens, 25,000:1 contrast ratio, HDR10+, and 120% NTSC color coverage.
- Audio: Integrated 36W speakers with Dolby Audio Plus technology for immersive sound.
- Intelligentes System: Linux operating system with built-in licensed apps (Netflix, Prime Video, YouTube, Disney+, Apple TV).
- Konnektivität: Ultra-fast WiFi 6 and Dual-Mode Bluetooth 5.3. Includes 2 HDMI ports, 2 USB ports, and 1 LAN Port.
- Intelligent Adjustments: AI Movin System mit Autofokus, automatischer Trapezkorrektur, automatischer Bildschirmerkennung und Hindernisvermeidung.
- Haltbarkeit: Fully sealed optical engine and liquid cooling system for enhanced dust protection and efficient heat dissipation.

Abbildung 1: Vorderseite view of the iSinbox JY821 Smart Projector.

Abbildung 2: Rückseite view showing connectivity ports (HDMI, USB, LAN).

Abbildung 3: Intern view illustrating the 36W immersive stereo sound system.

Figure 4: Visual representation of the projector's Dolby Audio and 36W speaker system.

Figure 5: Depiction of the projector's 4K decoding capability and 2500 ANSI lumens brightness.

Figure 6: Illustration of the automatic focus and 6D keystone correction features.

Figure 7: Diagram showing the fully sealed optical engine for dust defense.

Figure 8: Visual of the liquid thermal cooling system for efficient heat management.

Figure 9: Illustration of the projector's WiFi 6 and Bluetooth 5.3 capabilities.
4. Einrichtungsanweisungen
4.1 Erstplatzierung
Place the projector on a stable, flat surface. Ensure there is adequate ventilation around the device. The projector supports flexible installation options including ceiling mount, desktop, or wall mount (M4x3.88mm screw holes are available).
4.2 Stromanschluss
- Schließen Sie das Netzkabel an den Stromeingang des Projektors an.
- Stecken Sie das andere Ende des Netzkabels in eine geeignete Steckdose.
4.3 Geräte anschließen
The projector is fully compatible with various devices. Use the appropriate cables for connection:
- HDMI-Anschlüsse (x2): For connecting devices like Fire TV Stick, Roku, laptops, and PS5.
- USB-Anschlüsse (x2): For connecting USB drives or other USB accessories.
- LAN-Anschluss (x1): Für kabelgebundene Internetverbindungen.
- AV-Kabel: Zum Anschluss älterer Audio-/Videogeräte.
4.4 Netzwerkverbindung
The projector supports both wired and wireless network connections.
- WLAN 6: Navigate to the network settings on the projector, select your Wi-Fi network, and enter the password.
- LAN: Connect an Ethernet cable from your router to the projector's LAN port.
5. Bedienungsanleitung
5.1 Ein-/Ausschalten
Drücken Sie den Netzschalter am Projektor oder an der Fernbedienung, um das Gerät ein- oder auszuschalten.
5.2 AI Movin System (Automatic Adjustments)
The projector features an AI Movin System for automatic image adjustments:
- Autofokus: Der Projektor passt die Bildschärfe automatisch an.
- Automatische Trapezkorrektur: Corrects distorted images for a rectangular display.
- Automatische Bildschirmerkennung: Identifiziert die Projektionsfläche.
- Hindernisvermeidung: Passt das Bild so an, dass Hindernisse auf der Projektionsfläche vermieden werden.
These features activate automatically upon startup or when the projector is moved.

Figure 10: The AI Auto Screen Setting in action, showing automatic focus and keystone correction.
5.3 Verwendung integrierter Apps
The projector runs on a Linux operating system with pre-installed streaming applications. Use the remote control to navigate the home screen and select apps like Netflix, Prime Video, YouTube, Disney+, and Apple TV. A Netflix streaming membership is required for Netflix content.

Figure 11: Projector displaying the home screen with various streaming applications.
5.4 Bluetooth-Konnektivität
The projector supports Dual-Mode Bluetooth 5.3 for audio input and output.
- Bluetooth-Lautsprechermodus: Use the projector as a Bluetooth speaker by pairing your mobile device.
- Externe Audiogeräte: Schließen Sie externe Bluetooth-Lautsprecher oder Kopfhörer für ein besseres Klangerlebnis an.
5.5 Bildschirmspiegelung
Seamlessly mirror content from your Android or iOS device to the projector without delay. Refer to your device's screen mirroring instructions for specific steps.
5.6 Zoomfunktion
Adjust the image size from 50% to 100% using the zoom flexibility feature, allowing for easy placement and multi-angle projection.
6. Wartung
6.1 Staubschutz
The projector features a fully sealed optical engine to minimize dust buildup. Regularly wipe the exterior with a soft, dry cloth. Avoid using abrasive cleaners or solvents.
6.2-Kühlsystem
The liquid cooling system automatically adjusts fan speed and coolant for optimal temperature. Ensure ventilation vents are not blocked to maintain efficient cooling and prolong the projector's lifespan.
7. Fehlerbehebung
| Problem | Mögliche Ursache | Lösung |
|---|---|---|
| Kein Bild angezeigt | Netzkabel nicht angeschlossen, falsche Eingangsquelle, Gerät nicht eingeschaltet. | Check power connections, select correct input source (HDMI 1/2, AV), ensure connected device is on. |
| Unscharfes Bild | Unscharf, Projektor bewegt. | The AI Movin System should auto-focus. If not, check for obstructions or manually adjust focus if available in settings. |
| Verzerrtes Bild (Trapezform) | Incorrect projection angle. | The AI Movin System should auto-correct keystone. Ensure the projector is placed as squarely as possible to the screen. |
| Kein Ton | Lautstärke zu niedrig, externes Audiogerät nicht angeschlossen/gekoppelt, falscher Audioausgang ausgewählt. | Increase volume, check Bluetooth connection for external speakers, ensure internal speakers are selected if no external audio is desired. |
| Keine Verbindung zum WLAN möglich | Falsches Passwort, außerhalb des zulässigen Bereichs, Netzwerkproblem. | Verify Wi-Fi password, move projector closer to router, try a wired LAN connection. |
8. Spezifikationen
| Besonderheit | Detail |
|---|---|
| Marke | iSinbox |
| Modellnummer | JY821 |
| Artikelgewicht | 4.97 Pfund |
| Technische Daten | 7.7 x 8.6 x 5.5 Zoll |
| Farbe | Rotguss |
| Bildschirmauflösung | 1920 x 1080 (Native 1080P, unterstützt 4K-Dekodierung) |
| Helligkeit | 2500 ANSI-Lumen |
| Kontrastverhältnis | 25,000:1 |
| Konnektivitätstechnologie | Bluetooth 5.3, HDMI, Wi-Fi 6, Drahtlos |
| Besondere Merkmale | 3D Dolby Audio & 36W Speakers, 4K Projector with Movin Smart Operating System, AI Image Enhance & Eye Protect Mode, Auto Focus and 6D Keystone Correction, Bi-directional Bluetooth 5.3, Ultra-fast Wi-Fi 6, Handheld Compact Design, Compatible with Netflix / Prime Video / YouTube / Disney+ / Apple TV |
| Empfohlene Verwendung | Wirtschaft, Bildung, Spiele, Indoor/Outdoor |
9. Garantie und Support
iSinbox offers lifetime technical support for the JY821 Smart Projector. For any questions or assistance, please contact customer service at service-us@isinbox.com.
Für das Produkt gilt eine 30-tägige Rückgabefrist mit Rückerstattung oder Umtausch.
10. Offizielles Produktvideo
Video 1: Endeview of the iSinbox JY821 Smart Projector's features and capabilities, including auto-focus, built-in apps, and Dolby Audio. Provided by iSinbox Direct US.