Problems with ARC and Blu Ray Player

feelfix

器材：Sony W800A TV, Pioneer 1123K Amp, Pioneer BDP450 player

連接方法：Amp HDMI Out to TV HDMI1, BDP HDMI1 to TV HDMI4, BDP HDMI2 to AMP BD IN

問題一： ARC not working between TV and Amp.

問題二：TV keeps flashing when 開始播BR。持續大概五至十分鐘之後正想番。還有TV無端端自己由HDMI4跳去HDMI1 channel.

問題三：嘗試拔出條HDMI線 between TV and AMP 問題二即解決。是什麼原因？

先謝各高手師兄指導一下。^_^