The J-TECH DIGITAL 8K HDMI Audio Extractor (Model: JTD-302 / JTECH-AE8K) is a device designed to extract audio signals from an incoming HDMI signal and output them to an external audio system. It supports high-resolution video and advanced audio formats, making it suitable for modern home theater and professional audiovisual setups.

Function Description:

The primary function of the JTECH-AE8K is to separate the audio component from an HDMI video signal. This extracted audio can then be routed to various audio output options, including HDMI (out), Optical (SPDIF), and RCA (L/R). This allows users to connect their video source (e.g., a gaming console, Blu-ray player, or streaming device) to a display while simultaneously sending the audio to a dedicated sound system, soundbar, or amplifier that might not have HDMI ARC/eARC capabilities or for situations where specific audio formats are preferred through different outputs. The device is plug-and-play, aiming for easy integration into existing setups.

Important Technical Specifications:

Video Resolution: Supports up to 8K@60Hz and 4K@120Hz.
Refresh Rate: Highest refresh rate supported is 120Hz.
HDMI Compliance: HDMI 2.1 compliant.
HDCP Compliance: HDCP 2.3 compliant.
Deep Color: Supports 12-bit Deep Color.
HDR Support: Yes.
Maximum Bandwidth: 40Gbps.
HDMI Input/Output Distance: Up to 3 meters using 8K HDMI cable.
Operating Temperature Range: -10 to +55°C.
Operating Humidity Range: 10 to 90%RH (No Condensation).
Storage Temperature Range: -20 to +60°C.
Storage Humidity Range: 10 to 95%RH (No Condensation).
Input Video Signal: 0.5-1.5 Volt P-P.
Input DDC Signal: 5 volts p-p(TTL).
Supported HDMI Resolutions: 8K/4K/1080p/1080i/720p/576p/576i/480p/480i.
Video Color Format: 24/30/36 bit deep color.
Power Consumption: DC5V2A; 12V/1A.
Audio Output: L/R + SPDIF + HDMI Out Only Audio.
Dimensions (LxWxH): 96x66x22mm.
Net Weight: 180g.

Usage Features:

Audio Extraction: Extracts audio from an HDMI signal to provide separate L/R (RCA), SPDIF (Optical), and HDMI Out Only Audio outputs.
ARC (Audio Return Channel) Support: The device includes an ARC indicator and an ARC key, suggesting it can manage audio return from a connected display. The ARC indicator status shows different colors for different audio formats: 2.0 (Red), 5.1 (Blue), 7.1 (Purple), and Bypass (Off).
Input/Output Ports:
- Power Input Port: For connecting the DC 12V/1A power adapter.
- HDMI IN: Connects to the HDMI source device.
- HDMI OUT: Connects to the display device (e.g., TV, monitor).
- HDMI OUT Only Audio: An additional HDMI output specifically for audio, allowing connection to an audio receiver or amplifier.
- SPDIF Out: Optical digital audio output for connecting to soundbars or audio systems.
- L/R Out: Analog stereo audio output (RCA) for connecting to older audio systems or headphones.
Indicators:
- Power Input Indicator: Shows the power status.
- HDMI Input Indicator: Shows the status of the HDMI input.
- HDMI Output Indicator: Shows the status of the HDMI output.
- ARC Indicator: Displays the current ARC audio format (2.0, 5.1, 7.1, or Bypass).
- Status Indicators: LEDs for ARC, OUT, IN, and PWR.
Controls:
- ARC Key: Likely used to toggle or select ARC modes/formats.
- P/2.0/5.1/7.1 Switch: A switch to select the desired audio output format (2.0, 5.1, 7.1, or Pass-through).
Package Contents: Includes the JTECH-AE8K audio extractor unit, a DC 12V/1A power adapter, a 3.5mm to RCA cable, and a user manual.
Compliance: HDMI, RoHS, and CE/FC compliant, ensuring adherence to environmental and safety standards.

Maintenance Features:

Cleaning: The unit should be cleaned with a soft, dry cloth. Avoid using alcohol, paint thinner, or benzine, as these can damage the device.
Safety Precautions:
- Do not open the product to prevent electric shock; repairs should only be performed by qualified personnel.
- Place the product on a stable, flat surface to prevent falling.
- Avoid exposing the product to water, moisture, or high-humidity environments.
- Protect from direct sunlight and high temperatures.
- Do not place near heat sources (radiators, stoves, etc.).
- Do not place objects on top of the product.
- Use only manufacturer-specified attachments and accessories.
- Unplug the power supply during lightning storms or prolonged periods of disuse to prevent damage.

Warranty and Service:

Limited Warranty: One-year "Parts and Labor" warranty from the original purchase date.
Coverage: Covers failures due to defects in material or workmanship.
Exclusions: Does not cover normal wear and tear, cosmetic damage, shipping damage, failures caused by non-warrantor supplied products, accidents, misuse, abuse, neglect, mishandling, misapplication, alteration, faulty installation, incorrect setup, improper maintenance, power line surge, lightning damage, unauthorized modification or service, or acts of God.
Mail-In Service: For warranty service, the product must be carefully packed, prepaid, adequately insured, and sent in the original carton, including a letter detailing the complaint and contact information.

J-Tech Digital JTD-302 - Table of Contents

Table of Contents