Experiencing image dropouts or HDMI signal loss after upgrading to a 4K projector?

This video explains what’s really happening and how to resolve it properly.
In this technical breakdown, we explore HDMI bandwidth, 18Gbps vs 48Gbps, long cable runs, EDID negotiation, and why modern projection systems demand more from your connectivity than ever before.

We explain why we specify Kordz HDMI cables in our cinema installations - not for image "improvements", but for certified bandwidth performance, long-run stability, and reliable 48Gbps capability where required.

Using the Epson EH-QB1000 4K PRO-UHD Laser Projector as a real-world example, we demonstrate how HDMI bandwidth negotiation can trigger signal dropouts after an upgrade - and how to resolve it within the projector menu.


Why We Use Kordz HDMI Cables
Modern projection systems often require:
• 18Gbps for 4K HDR at 60Hz
• Up to 40-48Gbps for 4K 120Hz
• Stable performance over longer runs
• Immunity to interference in rack-to-projector installations

Kordz HDMI cables are certified for full bandwidth performance and designed specifically for professional AV environments.
In this video we explain:
• When 18Gbps is sufficient
• When 48Gbps is the safer specification
• Why Active Optical HDMI is essential for longer runs
• How bandwidth headroom prevents future signal instability


Epson EH-QB1000 HDMI Dropout Explained
Using the Epson EH-QB1000 4K PRO-UHD Laser Projector, we show how HDMI signal dropouts can occur when the system negotiates a higher bandwidth than the installed cable can reliably support. If you are searching for an Epson EH-QB1000 signal dropout fix, this section walks through the practical solution.
We walk through:
• The projector’s EDID behaviour
• How it requests higher bandwidth signals
• Where to adjust HDMI bandwidth in the projector menu
• When reducing to 18Gbps can stabilise the system
• Why upgrading to a certified 48Gbps cable is the long-term solution
This section includes on-screen menu walkthroughs, making it practical and installer-focused rather than theoretical.


Topics Covered
• Kordz HDMI cable performance
• 18Gbps vs 48Gbps explained
• 4K HDR bandwidth requirements
• Active Optical HDMI for long runs
• EDID and signal negotiation
• Epson EH-QB1000 HDMI menu settings
• How to fix HDMI dropouts in projector systems
• Avoiding "No Signal" errors

Chapters
00:00 - Real-world signal failure example
01:05 - How HDMI bandwidth has evolved
02:01 - HDMI Data Rate Chart Explained (720p to 4K 120Hz - 2.2Gbps to 48Gbps)
02:15 - Long runs and Active Optical HDMI
03:07 - EDID and signal negotiation
03:33 - Epson EH-QB1000 HDMI settings walkthrough
03:54 - Can a cable improve image quality?
05:11 - Installer takeaway


Kordz HDMI cables are available to UK installers through AWE Europe Ltd.
www.awe-europe.com/Brands/Kordz