Instruction manual

Appendix H – EDID Programming
139
Instruction Manual – DXLink™ Twisted Pair Transmitters/Receiver
Reading and Saving EDID Data from a DXLink TX’s HD-15 (VGA) Input Connector
The DGX Configuration Software reads the EDID data from the USER EDID 1 EEPROM location, regardless of the
VIDIN_EDID setting.
Important: Unless a custom EDID has been previously written to the input, attempting to read the EDID will
result in a Read Error message.
The EDID data can be read to confirm the correct EDID has been programmed.
To read and save EDID data from a DXLink Transmitter:
1.
On the PC, open the DGX Configuration Software and select the EDID Programmer tab.
2. Under Inputs/Outputs on the left, expand the device tree, and select the HD-15 input.
3. Click Read to read the VGA EDID information currently on the HD-15 input.
The EDID data appears in the EDID read-only field on the right.
Tip: In the EDID Programmer view, the Save to File option under the File menu can be used to save the EDID
information as an .edid file. The saved file can be opened as a text file (from the File menu, select Open File)
and edited or opened and written to an input (click the Write button).
Read Error Message
A Read Error message will appear if the Multi-Format Transmitter has never been programmed with a valid/custom
EDID or if the unit has been programmed with a corrupted EDID. A Read Error message will also appear when
attempting to read the EDID after sending a FACTORYAV SEND_COMMAND, which re-initializes the VGA USER
EDID 1 EEPROM and resets the VIDIN_EDID setting to ALL RESOLUTIONS (which is AMX_0500_003).
Writing EDID Data to a DXLink Transmitter’s HD-15 (VGA) Input Connector
The instructions that follow tell how to use the EDID Programmer view to write user defined VGA EDID information
to the HD-15 input connector on a DXLink Transmitter. User defined VGA EDIDs are currently available from technical
support.
AMX EDID Library
A library of VGA EDID files are available at www.amx.com (search for EDID Library). This library provides EDID
files that can be used with AMX products. A report is provided for each EDID file, which describes the EDID features
in detail, in order to assist you in selecting the most appropriate EDID for your system needs.
Check the Library to determine if one of the custom EDID files meets your needs. (The custom EDID files
are variants of base/standard EDIDs.)
DGX Configuration Software can be used to reprogram the EDID on the input port with one of the .edid files
provided in the EDID Library.