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J-Tech Digital Guides
Articles
Explore practical guides, setup advice, and product insights from the J-Tech Digital team.
Featured Guide
ARC
Start here
Can ARC or eARC Pass Through an HDMI Switch or Matrix?ARC and eARC pass through an HDMI switch or matrix only when the device documents that return path. Check port, output, and CEC settings before buying.
Latest Articles
78 articles
HDBaseT
How to Select a KVM Extender for Remote Computer AccessSelecting a KVM extender for remote PC access means matching the full signal path. Check run length, USB devices, 4K displays, local...
4K-HDMI-Problems
How to Select a 4K HDMI Splitter for HDR, HDCP, and Surround SoundAvoid black screens and lost surround sound. Match your source's HDR, chroma, HDCP, and audio needs to the spec sheet before buying...
4k 120hz
Can an HDMI Splitter Preserve VRR, ALLM, and 120Hz Gaming?Two displays on one HDMI splitter often cost you 120Hz, VRR, or ALLM. This guide shows which link in the chain breaks...
Audio-Solutions
HDMI Matrix EDID and Audio Routing: How to Prevent Display Compatibility ProblemsMap every source, display, and audio path before changing EDID settings. Choose profiles, handle mixed resolutions, separate audio routes, and check HDCP.
HDMI-Cable
Active HDMI Splitter vs. Passive Splitter Cable: Which One Actually Works?Compare active HDMI splitters with passive splitter cables for dual-display setups, including signal stability, HDCP/EDID support, and power requirements.
General HDMI Troubleshooting: Fix No Signal, Sound, and Display IssuesHDMI issues often stem from input selection, loose connections, or audio routing. Covers signal checks, cable testing, and display detection steps.
HDMI Extender Downscaling: How to Connect 4K and 1080p Displays in One SystemMixed 4K and 1080p displays need an HDMI extender or splitter with independent downscaling. Verify per-output conversion, EDID modes, and test HDR...
HDMI Switch Control Options: Front-Panel, IR Remote, RS-232, and IP ControlFront-panel buttons suit reachable units, IR remotes work for nearby seats, RS-232 fits wired AV automation, and IP control enables network management.
EDID-Switch
Why Does an HDMI Switch Keep Changing Inputs? Auto-Switching Problems ExplainedHDMI switch auto-switching is typically triggered by source activity or CEC commands. Isolate devices, test CEC controls, and use manual mode to...
How Much Latency Does AV over IP Add? Compression, Switching, and Network FactorsMeasure AV over IP latency correctly: define endpoints, record configuration, and test under real traffic. A practical guide to compression and network...
Why Does an HDMI Audio Extractor Have Video but No Sound?Video works but no sound from an HDMI audio extractor? Confirm the output, switch to PCM, review EDID and downmix, verify ARC...
Can an HDMI Splitter Extend a Desktop? Mirrored vs. Independent Displays ExplainedA conventional HDMI splitter mirrors one image and cannot extend a desktop. Use graphics outputs, USB-C, a USB adapter, or a dock...
What Is HDMI Loop-Out on an Extender, and When Is It Useful?HDMI loop-out on an extender gives a local monitor plus a remote display from one source. Learn loop-out uses, splitter differences, and...
Solid Copper vs. CCA Ethernet Cable for HDMI Extenders: Why Conductor Material MattersSolid copper is the safe default for long or powered HDMI-over-Cat6 runs. CCA needs explicit approval. Verify resistance, power, and cable specs...
hdbaset-hdmi-extender
HDMI Booster vs. HDMI Extender vs. Fiber Cable: Which Solves Your Distance Problem?An HDMI signal dying between source and screen is usually fixed by one of three things: a booster, an extender, or fiber—matched...