QUOTE(robinlim @ Aug 19 2009, 09:56 AM)
All my HDMI connected devices are working flawlessly (BDP and WDTV)
only those non-HDMI connected devices have problems (DVDP - Components, Astro - S-video, CDP - Analogue RCA)
Is it because I'm using HDMI out causing the non-HDMI connected devices to have problems?
Nope, that will not cause your problem. I also using 2 HDMI player (DVD and WDTV).
How your AVR change the input? Got dedicated button for each input or only 1 button will switch one by one. There a lots of different setting between those 2 methods.
Some modern (i mean newest) AVR will have input signal autodetect, that might cause the problem. Say like you watching on WDTV, then someone switch on the BD, the AVR will autoswitch to BD input.
My suggestion is to customise the remote and let AVR be the last to be ON so any device ON will not cause the AVR to autoswitch (if yours have this function).
ps;- all 3 AVR I have belong to classic categories.