HDMI Female Dock Test Board to test HDMI port's (cable, Switch, adapter ) | eBay
HDMI Kabel und Display Port Kabel testen | Advanced Cable Tester v2
Amazon.com: Pyle Home HDMI High Definition Cable Tester - Battery Operated HDMI Connector Line Finder, Wire Tracker w/ LED Light Indicator - Test Up to 19 Type A HDMI Cables - Pyle
SIIG HDMI Port Signal Tester with Digital Meter Indicator - Plug-in To Test and Verify HDMI Display/Monitor Resolution, Frame Rate, and Color Depth/Space
There's no picture on my TV when using an HDMI connection | Sony UK