Originally Posted by NTN1
Kept getting the "Mode Not Supported" error. Thanks.
That error is reported by the TV not the PS3. As long as you are wired correctly the PS3 to the 3dc-100S to the Samsung then the video setup link will work. My 61a750 and your 67a750 use the same chips as far as I know.
If you don't even see the PS3 signin screen, I suspect you have something set up wrong. Make sure you don't have the in/out on the 100S box backwards. Check the port on the TV to see if it will play direct from the PS3 (it won't do 3d, but it should display the 2d PS3 screen fine). If it doesn't work there, plug it into HDMI 1 on the tv and switch to that input. If you see the PS3 on port 1 you may have a bad port 3.
If you don't see it, make sure the PS3 output is set for HDMI. If that is OK, then you may have a bad cable. Although some folks have said the type of HDMI cable doesn't matter, if you are using the cable that came with the PS3, then eliminate that as a problem by getting a new high speed cable.
It is a bit difficult doing troubleshooting via emails but you have to be very methodical on tracing steps in the setup routine. If I've mentioned stuff you already tried then just ignore. All I could tell is that you jumped from A to Z and you have to eliminate everything in between.