I am currently using Yamaha RX-V673. I have been using this machine for 6 months now and I am very happy with it. It deliveres fantastic sound!!! However, last night after i reached home and tried to watch TV (cable TV), unfortunately, I can only hear the sound but no video. The TV showing "NO SIGNAL" and I started to panic. Then I switched to other sources, PS3, Blue-Ray Player and it is still the same, No Signal. Then I noticed the HDMI output light indicator keep on blinking. Could someone really help me to solve this problem.