HDTV Supply HD-EDID-4K

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Summary

Product Features

15 Preset EDID Data

Provides 15 preset EDID data for common resolutions and refresh rates.

Learn EDID from Display

Allows learning EDID data directly from a connected HDMI display.

Bi-directional Simulation

Supports bi-directional simulation, connectable to source or display.

HDMI Version and HDCP Compliance

Compatible with HDMI 2.0, 1.4, and earlier versions, HDCP compliant.

High Resolution Support

Supports resolutions up to 4Kx2K at 60Hz refresh rate.

Advanced Feature Support

Supports 3D, Deep Color, and CEC functionalities.

Audio Format Support

Supports Dolby True HD and DTS HD Master Audio formats.

EDID Status Indicator

Features a two-color LED indicator for EDID status.

HDMI Powered Operation

Powered directly by the HDMI source connection.

Connection and Operation

Learn External EDID

Procedure for learning external EDID from an HDMI display for Channel 0.

Reset to Default EDID

Instructions for resetting the EDID to its default settings for Channel 0.

This document describes the HD-EDID-4K, an HDMI EDID learner/simulator designed to address display issues caused by incorrect EDID (Extended Display Identification Data). It functions as a problem-solver for scenarios where a display might show no image or an incorrect resolution due to EDID discrepancies.

Function Description

The HD-EDID-4K acts as an intermediary device in an HDMI connection, capable of simulating or learning EDID data. Its primary function is to store and provide EDID information to a source device, ensuring that the source outputs a signal compatible with the connected display. This is particularly useful in complex setups or when dealing with displays that have problematic EDID implementations. The device can be connected either on the source side or the display side of an HDMI chain, offering bi-directional simulation capabilities.

At its core, the HD-EDID-4K is designed to study the display model and save its EDID. This learned EDID can then be used to simulate the display's capabilities to a source device, effectively "tricking" the source into sending the correct video and audio formats. This process helps resolve common issues like a blank screen or an incorrect resolution being displayed, which are often rooted in the source device receiving inaccurate or incomplete EDID from the display.

The device features a two-color LED indicator (Green/Blue) that provides visual feedback on its operational status, including learning mode, EDID status, and reset processes. This simplifies troubleshooting and confirms successful operations. Power for the device is conveniently supplied directly from the HDMI source, eliminating the need for an external power adapter.

Usage Features

The HD-EDID-4K comes with a robust set of features designed for ease of use and broad compatibility:

Preset EDID Data: The device includes 15 preset EDID data configurations for commonly used resolutions and refresh rates. These presets cover a wide range of display scenarios, from standard definition (480p) up to 4Kx2K resolutions at various refresh rates (e.g., 60Hz, 30Hz, 24Hz). This allows users to quickly select a suitable EDID profile without needing to learn from a physical display, making it ideal for testing or for situations where the display's EDID is corrupted or unavailable. The preset channels include configurations for resolutions like 720p, 1080i, 1080p, 1024x768, 1280x1024, 1366x768, 1400x1050, 1680x1050, 1600x1200, 1920x1080, 1920x1200, 3840x2160, and 4096x2160, with various refresh rates to match common PC and BD (Blu-ray Disc) references.

EDID Learning Capability: Beyond presets, the HD-EDID-4K can learn EDID data directly from an indicated HDMI display. This is a crucial feature for ensuring perfect compatibility with specific, unique displays. The learning process is straightforward:

Plug the HDMI input of the HD-EDID-4K into your HDMI source. The LED will light green for 2 seconds, indicating the start of the initial learning mode.
The LED will then flash blue for 5 seconds, signifying the active learning mode.
Within this 5-second window, connect the HDMI cable from your monitor to the HDMI output of the HD-EDID-4K. The LED will flash blue once to confirm the completion of the learning process. This learned EDID is stored in Channel 0 and can then be used to simulate the display's capabilities.

Broad HDMI Support: The device supports a wide range of HDMI versions, including HDMI 2.0, HDMI 1.4, and earlier versions. It is also HDCP compliant, ensuring compatibility with protected content. This broad support makes it versatile for use with both older and newer HDMI equipment.

Advanced Video and Audio Features: The HD-EDID-4K supports advanced video features such as resolutions up to 4Kx2K@60Hz, 3D content, and Deep Color. For audio, it supports high-definition formats like Dolby True HD and DTS HD Master Audio, ensuring that not only video but also high-quality audio signals are correctly transmitted and recognized. It also supports CEC (Consumer Electronics Control), allowing for integrated control functionalities between connected devices.

Bi-direction Simulation: The flexibility to connect the device in either the source or display side of an HDMI connection enhances its utility. This means it can simulate a display's EDID to a source, or it can simulate a source's EDID to a display, depending on the specific troubleshooting or setup requirements.

Maintenance Features

The HD-EDID-4K includes a simple yet effective maintenance feature:

EDID Reset Functionality: For situations where the learned EDID in Channel 0 might become corrupted or needs to be cleared, the device offers a reset function to revert to the default EDID. This process is also user-friendly:

Connect an HDMI cable to an HDMI display and the HDMI output of the HD-EDID-4K.
Then, plug the HDMI input of the HD-EDID-4K into your HDMI source.
The LED will light green for 2 seconds, followed by flashing green for another 2 seconds.
During this flashing green period, unplug the HDMI cable from the display. The LED will flash green once to confirm the completion of the EDID reset process. This ensures that the device can always be returned to a known good state, preventing permanent issues from incorrect learned EDID data.

The HD-EDID-4K is a compact and self-powered device, making it a convenient tool for professionals and enthusiasts dealing with HDMI EDID-related challenges. Its intuitive LED indicators and straightforward operation for both learning and resetting EDID data contribute to its ease of maintenance and overall reliability.