I have a Puma 23FB, with the iRV AM/FM/CD and DVD player. I did not get instructions when I bought the unit.
I put a DVD in and I can hear the sound, but no picture. The unit has HDMI and other inputs, but no outputs. My digital TV is connected to the 75 ohm antenna connection with the amplifier off. Nothing. No picture or sound on the TV.
On your tv remote there is a button called "input" - press it and select HDMI 1 - it should come up on tv, then press the button on top right of tv remote, "SCREEN SIZE" - pic THEATRE #2. Hope this helps.