Category
Cables & Connections issues
10 guides
HDMI, eARC/ARC, optical, and power cabling problems that affect picture and sound.
Fix General HDMI no-signal and handshake problems
Fix Multiple Brands HDMI no-signal and handshake problems
HDMI "No Signal" checklist for 4K TVs and receivers
Fix HDMI-CEC and eARC power control not working between TV and receiver
HDMI "No Signal": step-by-step fixes that actually work
Samsung TV: “No Signal” on HDMI – step-by-step fixes
Sony Bravia: HDMI “No Signal” or missing input – what actually works
LG C2/C3 shows "No Signal": fixes that stick
HDMI switch for 4K/120: what actually works
ARC vs eARC: which do you need (and which cables)?