1. Introduction
The JN-821T2 DVB-T2 HD TV Box is a digital terrestrial television receiver designed for high-definition channels. It supports the latest European DVB-T2 standards, including H.265/HEVC video decoding with 10-bit color depth, making it compatible with new digital TV standards in regions like Spain, Italy, and Poland. This device allows you to receive and enjoy free-to-air digital TV channels, offering features such as PVR (Personal Video Recorder), time-shifting, and multimedia playback.
2. Safety Information
- Ensure the device is connected to a power source within the specified voltage range (100-240V, 50/60Hz).
- Do not expose the device to rain or moisture to prevent fire or electric shock.
- Avoid placing the device near heat sources such as radiators, heat registers, stoves, or other heat-producing appliances.
- Do not block ventilation openings. Ensure proper airflow around the device.
- Use only attachments/accessories specified by the manufacturer.
- Unplug the device during lightning storms or when unused for long periods.
- Refer all servicing to qualified service personnel.
3. Package Contents
Please check the box for the following items:
- 1 x JN-821T2 TV Box
- 1 x Remote Control
- 1 x User Manual (this document)
- 1 x HDMI Cable
Note: A USB Wi-Fi Dongle (MT7601) is required for network features and is purchased separately.
4. Product Overview
4.1. Front and Rear Panel Interfaces
Rear Panel:
- RF IN: Connect to your terrestrial antenna.
- RF LOOP THROUGH: Output for connecting to another TV or DVB-T2 receiver.
- COAXIAL: Digital audio output.
- HD (HDMI): High-Definition Multimedia Interface output for connecting to your TV.
- SCART: SCART output for older TVs.
- AC: Power input (100-240V, 50/60Hz).
Front Panel:
- POWER: Power button.
- MENU: Access the main menu.
- USB 2.0: USB port for connecting external storage (USB flash drive, hard disk) or a Wi-Fi dongle.
- CH+/CH-: Channel up/down buttons.
- V+/V-: Volume up/down buttons.
- OK: Confirm selection.
4.2. Remote Control
The remote control provides full functionality for navigating menus, changing channels, adjusting volume, and accessing advanced features. Familiarize yourself with the button layout for optimal use.
5. Setup
- Connect Antenna: Connect your terrestrial antenna cable to the RF IN port on the rear panel of the TV Box.
- Connect to TV:
- For High-Definition TVs: Connect one end of the provided HDMI cable to the HD (HDMI) port on the TV Box and the other end to an available HDMI input on your TV.
- For Standard-Definition TVs: Connect a SCART cable (not included) to the SCART port on the TV Box and to the SCART input on your TV.
- Connect Power: Plug the power cable into the AC port on the TV Box and then into a wall outlet.
- Power On: Turn on your TV Box and your television. Select the correct HDMI or SCART input on your TV using your TV's remote control.
- Initial Scan: Upon first power-on, the TV Box will typically guide you through an initial setup process, including language selection and an automatic channel scan. Follow the on-screen instructions to scan for available DVB-T2 channels.
6. Operating Instructions
6.1. Basic Operation
- Power On/Off: Press the POWER button on the remote control or front panel.
- Channel Selection: Use the CH+/CH- buttons to navigate through channels. You can also enter channel numbers directly using the numeric keypad on the remote.
- Volume Control: Use the V+/V- buttons to adjust the volume.
- Mute: Press the MUTE button on the remote to temporarily silence the audio.
- Menu Access: Press the MENU button to open the main menu for settings and features. Use the arrow keys and OK button to navigate.
- Exit Menu: Press the EXIT button to return to the previous screen or live TV.
6.2. Language Settings
To change the On-Screen Display (OSD) language:
- Press the MENU button on the remote.
- Navigate to 'System Settings' or 'Language'.
- Select your desired language from the list (e.g., English, Italian, Czech, Croatian, Nederlands, French, Spanish, German).
- Press OK to confirm and EXIT to leave the menu.
7. Advanced Features
7.1. PVR (Personal Video Recorder) and Time-shifting
The JN-821T2 supports recording live TV and time-shifting (pausing live TV). To use these features, you need to connect a USB flash drive or external hard disk to the USB 2.0 port.
- Recording: While watching a channel, press the 'Record' button on the remote (often a red circle icon) to start recording. Press 'Stop' to end.
- Time-shifting: Press the 'Pause' button during live TV to pause. Press 'Play' to resume from where you left off.
- Recorded content can be accessed via the 'PVR' or 'Media' menu.
7.2. Electronic Program Guide (EPG)
The device supports a 7-day Electronic Program Guide, allowing you to view upcoming program schedules. You can also set reminders for programs.
- Press the EPG button on the remote to access the program guide.
- Navigate through channels and times to see program information.
- Select a program and press OK to view details or set a reminder/recording.
7.3. Multimedia Playback
Connect a USB storage device to the USB 2.0 port to play various multimedia files.
- Supported Video Formats: mov, avi, ts, mkv, trp, etc.
- Supported Picture Formats: JPEG, BMP, PNG.
- Access the 'Media' or 'USB' menu from the main menu to browse and play your files.
7.4. Network Connection (Optional)
If you have a compatible USB Wi-Fi Dongle (MT7601, purchased separately), you can connect the TV Box to your home network to access certain internet services.
- Plug the USB Wi-Fi Dongle into the USB 2.0 port.
- Go to 'Network Settings' in the main menu.
- Select your Wi-Fi network and enter the password.
8. User Tips
- Additional Features: The primary function of this TV Box is to receive DVB digital TV channels. While some units may include additional features like YouTube or IPTV (requiring a separate Wi-Fi dongle), their availability and functionality are not guaranteed and may vary. If these additional features are critical for you, consider this limitation.
- Software Upgrades: If upgrading the STB's software via a USB flash drive, it is recommended to restore factory defaults after the update to ensure stable operation.
- Optimal Picture Quality: For the best viewing experience, ensure your TV is set to the correct aspect ratio (16:9 for widescreen content, 4:3 for standard definition).
9. Troubleshooting
| Problem | Possible Solution |
|---|---|
| No Power | Check if the power cable is securely connected to the TV Box and the wall outlet. Ensure the outlet has power. |
| No Picture/Sound | Ensure the HDMI or SCART cable is correctly connected to both the TV Box and the TV. Select the correct input source on your TV. |
| No Signal/No Channels | Check antenna connection. Ensure the antenna is properly positioned and receiving a strong signal. Perform a channel scan from the menu. |
| Remote Control Not Working | Check batteries and replace if necessary. Ensure there are no obstructions between the remote and the TV Box. |
| PVR/Multimedia Playback Issues | Ensure the USB storage device is properly formatted (FAT32 or NTFS recommended) and has sufficient free space. Check if the file format is supported. |
10. Specifications
Hardware
- Main Chipset: GX6702S5 (High performance SoC)
- DDR Memory: Embedded 512Mb DDR2
- Flash Memory: 4M Byte
- Tuner: Rafael R836
- Input RF Frequency: 48~866MHz
- Input Level: -83 to -5dBm
- Ethernet: 100M
- Wireless: Yes (via optional USB Wi-Fi Dongle MT7601)
- Bluetooth: No
- Power Source: Other (Inbox adaptor included)
DVB-T/T2 Demodulator
- Compliance: DVB-T (ETSI EN 300 744) and DVB-T2 (ETSI EN 302 755)
- IF Inputs: 1.7/5/6/7/8MHz bandwidths
- Guard Intervals: DVB-T (1/32 to 1/4), DVB-T2 (1/128 to 1/4)
- FFT Modes: 1K to 32K
- Constellations: QPSK, 16-QAM, 64QAM, 256-QAM
- Code Rates: 1/2, 3/5, 2/3, 3/4, 4/5, 5/6, 2/5, 1/3
- Scan: Ultra fast automatic blind UHF/VHF
Video & Audio
- Video Decoder: H.265 (up to 1920x1080, 8/10-bit color depth, Main/Main-10 profile, level 4.1), H.264 (MVC 3D up to 1080p), VC-1, MPEG-1/2/4
- Audio Decoder: MPEG-1/2 (LayerⅠ/Ⅱ), MP3, ACⅢ, EACⅢ, AAC-LC, HE-AAC WMA, RA8-LBR
- Audio Output: ACⅢ stream via SPDIF, Stereo DAC for line-out
- Video Output Resolution: 480i/576i/480p/576p/720p/1080i/1080P
- Video Output Interfaces: HDMI-Compatible 1.4, SCART, CVBS composite (480i, 576i)
- TV Standard Support: NTSC/PAL/SECAM
- Aspect Ratio: 16:9 (Pillar Box/Pan G Scan/Wide Screen), 4:3 (Letter Box/Pan G Scan/Full)
- Color Depth: HDTV output supports deep color 8/10/12-bit
- Video Formats: mov, avi, ts, mkv, trp, etc.
- Picture Formats: JPEG, BMP, PNG
- Display Engine: Built-in contrast and brightness control
Software Features
- OS: Linux
- Supported Internet Services: YouTube (functionality may vary)
- Software Update: Via USB flash drive (restore factory default after update), Online update (Vmade brand only)
- PVR: Yes (requires USB storage)
- Time-shifting: Yes (requires USB storage)
- EPG: 7 days Electronic Guide, EPG Schedule reminder
- OSD Languages: English, Italian, Czech, Croatian, Nederlands, French, Spanish, German
- Teletext/Subtitle: TTX/CC/WSS/CGMS-A support
- Sleep Timer: Yes
11. Maintenance
- Cleaning: Use a soft, dry cloth to clean the exterior of the device. Do not use liquid or aerosol cleaners.
- Ventilation: Ensure the ventilation slots are clear of dust and debris to prevent overheating.
- Software Updates: Periodically check for software updates (if available) to improve performance and add new features. Follow the instructions provided for safe updating.
12. Warranty and Support
For warranty information and technical support, please refer to the seller or manufacturer's official channels. Keep your purchase receipt as proof of purchase.