4K Linker
User Manual 4K Linker Rev 0.20
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4K Linker – User Manual
Disclaimer: 3rd party and/or custom firmware providing extra features are not covered in this manual.
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4K Linker – User Manual
Table of Contents
Overview …...................................................................................................... 4
Connecting Cables …........................................................................................ 5
Power Status/LED …......................................................................................... 6
Reset HPD/Factory Default…...........................................................................7
EDID Mode Selection .......................................................................................8
Input Switching ……………………………................................................................. 9
Scaling Mode Selection………..……………………………………………………………………. 10
Combo RST + INP to select Preset Mode......................................................... 11
List of Custom EDID available.......................................................................... 12
Backside Sticker............................................................................................... 13
Selecting the Windows PC driver for USB GUI and Firmware Update......…… 14
Update the Linker Firmware with a Windows PC...................................…… 15
Linker USB GUI for Windows PC..............................................................…… 17
Frequently Asked Questions (FAQ) ................................................................ 29
Specifications................................................................................................... .31
Certifications.................................................................................................... 34
Disclaimer: 3rd party and/or custom firmware providing extra features are not covered in this manual.
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4K Linker – User Manual
Overview
The HDfury team would like to thank you personally for purchasing the 4K Linker!
HDfury Linker is a 4K60 4:4:4 600MHz 18Gbps HDMI2.0a Level A capable scaler built for system
integrators and advanced users that will please everyone else as well.
By supporting the max bandwidth and data transfer rate of the HDMI2.0a standard and by offering new
scaling modes, options and possibilities to convert and always fed optimum signal through all existing
HDMI and HDCP revision, Linker is set to cross all HDMI boundaries.
Disclaimer: 3rd party and/or custom firmware providing extra features are not covered in this manual.
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4K Linker – User Manual
Connecting Cables
To use your 4K Linker:
• Connect a HDMI input cable to the HDMI input.
• Connect a HDMI output cable to the HDMI output.
• Connect the Linker power supply.
• Connect any additional HDMI input cable (optional).
As shipped, the Linker defaults to HDCP1.4 on the output port. Make sure that you are using 600MHz
certified HDMI 4K cable if you plan to set up a 4K60 4:4:4 600MHz 18Gbps link in your setup.
Disclaimer: 3rd party and/or custom firmware providing extra features are not covered in this manual.
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4K Linker – User Manual
Power/Status LED
The Linker logo will glow Green when in use. When the Linker first receives an HDMI signal the logo will
quickly turn on, then off, and then on permanently to indicate that the HDCP handshake has been
completed.
The status of the green logo may be used for troubleshooting:
[Logo OFF]: Insufficient power or no incoming signals. Use the Linker power supply, make sure
the source and sink devices are correctly connected and ON.
[Logo BLINKING] (ON for split second, OFF for 5 seconds): The Linker is receiving power and is
ready to accept an HDMI signal.
[Logo ON]: The Linker is powered and receiving and decoding a HDMI signal.
Disclaimer: 3rd party and/or custom firmware providing extra features are not covered in this manual.
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4K Linker – User Manual
Reset HPD (Short Press) or Reset to factory default (Long Press)
The 4K Linker offers 2 functions per push button.
[Short Press] on Reset Button will generate Hot Plug Detection event. Soft reset.
[Long Press] (over 8s for security) will hard reset the Linker to factory default.
Note: You can also Reset the unit from the USB GUI for Windows PC or when you flash the Linker
firmware.
Disclaimer: 3rd party and/or custom firmware providing extra features are not covered in this manual.
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4K Linker – User Manual
EDID Mode Selection
EDID slide switch has 3 positions.
Switch should be set to middle position to allow control via Windows PC USB GUI.
[Sink EDID Mode]: Create EDID based on the capabilities of the connected sink.
[Custom/GUI use EDID]: Pick and use EDID from a selection of available EDID tables (see p.11) or load
any EDID bank of your choice. By default the selected EDID table is a 4K60 BT2020/HDR 600MHz with
Full Audio capabilities. Leave the slide in this position to allow control via USB or to pick and use any of
the 25 different EDID tables available (see p.11 for the full list).
[Fixed EDID with L/R Audio]: This mode is a 1080p60 2channel stereo basic table. It can be used as a
security EDID to ensure a picture in every setup/situation.
Note: You can also switch EDID mode and any others control from the USB GUI for Windows PC.
Disclaimer: 3rd party and/or custom firmware providing extra features are not covered in this manual.
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4K Linker – User Manual
Input Switching
Input Switch Button allows you to switch between active inputs.
[Short Press] will switch the active input channel.
[Long Press] (over 2sec) is reserved for future use.
Disclaimer: 3rd party and/or custom firmware providing extra features are not covered in this manual.
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4K Linker – User Manual
Scaling Mode Selection
Scaling Mode slide switch has 3 positions.
The switch should be set to the middle position to allow control via USB.
[Upscaling Mode]: In this mode an incoming FHD 1080p signal will be upscaled to DCI/UHD 4K/2160p
up to 600MHz if the connected display is capable of receiving such signal.
[Scaling Justified + GU]: When coupled with EDID in Automix mode, the Linker unit makes sure that the
conversion will always output a working signal. It will ensure that if a display does not support 4K then
an incoming FHD 1080p signal won’t be upscaled and an incoming UHD 4K signal will be downscaled.
Such automation is cancelled when unit is running with EDID in Custom mode.
[Downscaling Mode]: In this mode a 4K/2160p DCI/UHD signal will always be downscaled to FHD 1080p.
Note on HDCP:
Both inputs accept HDCP1.4/2.2. Output can work with HDCP1.4/2.2 devices.
Disclaimer: 3rd party and/or custom firmware providing extra features are not covered in this manual.
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4K Linker – User Manual
Combo Hold RST + Press INP to select Preset Mode
For users without access to GUI for Windows PC, we added a dual-button combo, when RESET is pressed
down and INPUT is clicked the CS (Color Space) and DC (Deep Color) mode presets cycle between
1. Normal operation, clear all 4k30/4k60 presets, clear all deepcolor/colorspace to defaults.
2. Set 4k30/4k60 presets for a 4K30 deepcolor PJ > 300MHz (e.g Wireless UB/TW Espon)
[4K30 all -> 4K30 all, 4k60 600MHz -> 4k60 420 300MHz]
3. Set 4k30/4k60 presets for a 4K30 deepcolor PJ at 300MHz (e.g Wired UB/TW Epson)
[4k30 8/10/12 -> 4k30 422 12 300, 4k60 600MHz -> 4k60 420 300MHz]
4. Set 4k30/4k60 presets for a 4k60 420 300MHz TV
[4k30 8/10/12 -> 4k30 8, 4k60 600 -> 4k60 420 300]
5. Set 4k30/4k60 presets for a 4k30 8-bit 300MHz TV
[4k30 8/10/12 -> 4k30 8, 4k60 all-> 1080p60 444 8/10/12]
6. Set 4k30/4k60 presets for a 1080p60 TV
[4k30 8/10/12 -> 1080p30 8/10/12, 4k60 all-> 1080p60 444 8/10/12]
7. CS follow / DC follow
8. CS 4:4:4 / DC follow
9. CS 4:2:0 / DC follow
10. CS 4:4:4 / DC 8 bit
11. CS 4:2:0 / DC 8-bit
HOLD RST button + press INP button X number of times to select any of the above preset modes
Ex: Hold RST and press 8 times INP button to select Color Space: 4:4:4 / Deep Color: follow
Note: More advanced options are available via the GUI for Windows PC. Follow means Follow Input.
If any of the other quick presets is selected, the current/last mode in use is disabled automatically
Disclaimer: 3rd party and/or custom firmware providing extra features are not covered in this manual.
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4K Linker – User Manual
List of Custom EDID available.
User can select an EDID from all below EDID tables or force the unit to use Sink EDID or Fixed EDID
mode.
[SINK MODE EDID]
Use connected display EDID capabilities.
[CUSTOM/GUI USE EDID]
1 – Custom Uploaded/Default EDID
2 – 4k60-444 600MHz HDR BT.2020 All Sound
3 – 4k60-444 600MHz HDR BT.2020 Stereo
4 – 4k60-444 600MHz All Sound
5 – 4k60-444 600MHz Stereo
6 – 4k50-444 600MHz HDR BT.2020 All Sound
7 – 4k50-444 600MHz HDR BT.2020 Stereo
8 – 4k60-420 12-bit HDR BT.2020 All Sound
9 – 4k60-420 12-bit HDR BT.2020 Stereo
10 – 4k60-420 12-bit BT.2020 All Sound
11 – 4k60-420 12-bit BT.2020 Stereo
12 – 4k60-420 8-bit 300MHz All Sound
13 – 4k60-420 8-bit 300MHz Stereo
14 – 4k30-444 300MHz All Sound
15 – 4k30-444 300MHz Stereo
16 – 4k30-RGB 300MHz All Sound
17 – 4k30-RGB 300MHz Stereo
18 – 4k24-422 12-bit BT.2020 All Sound
19 – 4k24-422 12-bit BT.2020 Stereo
20 – 1080p-444 148MHz All Sound
21 – 1080p-444 148MHz HDR Stereo
22 – 1080p24-444 All Sound
23 – 1080p24-444 HDR Stereo
24 – 1080I-444 All Sound
25 – 1080I-444 Stereo
26 – 4k60-444 600MHz HDR BT.2020 5.1 Sound
27 – 4k60-420 12-bit BT.2020 5.1 Sound
28 – 4k60-420 8-bit 300MHz 5.1 Sound
[FIXED EDID MODE]
1080p-444 148MHz Stereo
Note: All options are available via USB GUI.
To upload a custom EDID or Sniff EDID from sink device, please refer to GUI section p.17
Disclaimer: 3rd party and/or custom firmware providing extra features are not covered in this manual.
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