This sounds just like the old DRM, rights or HDCP issues. Here's the brutal truth. If it doesn't work it has to be called into the maker and you need to ask for a fix or refund. They hold all the cards but you have a warranty and if it doesn't work, can't be fixed, then you ask for the money back.
After rearranging my A/V system components my Optoma EP1690 (HDCP compliant) projector now refuses to recognize signal outputs from my Onkyo TX-SR607, DirecTV DVR or Panasonic DMP-BD606. I believe the connections are the same as before. Direct connection to the DVR or BD player does not work either.
HDMI outputs are adapted to accommodate the projectors DVI input requirement. Sometimes it acknowledges the connection and displays noise; usually it indicates "no signal".
The same HDMI/DVI source from the DVR drives a Dell 24inch monitor with no problems.
The projector works fine when fed a composite or VGA video signal. There are no component inputs available on the projector. Alternate HDMI cables have been tried eliminating the possibility of a bad cable but the same adaptor has always been used.
I suspect that this might have something to do with digital rights management when using the HDMI to DVI cable adaptor even though it worked ok like this before.
I would very much appreciate some ideas on this.