I have purchased a new onkyo TX-SR-313 Avr. and i have a Benq W750 Projector.
I have tried Onkyo with my LG LED tv, and it works fine..
now other way round i have tried Benq W750 Projector with other inputs also works fine.
But the problem is when i connect Onkyo with Benq, it says detecting source, and after sometime, says no signal,
Sorry to hear about that Rajat! How long is the cable running from the AVR to the projector, and have you already tried another cable?