HR21-100 HDMI failure after boot-up

[rob5819]

I've had an HR21-100 (currently running 0x29b) for almost a year and it just started failing using the HDMI interface. It has worked correctly before, but now the HDMI connection has no audio/video. The component and composite connections work with no problems.

I have swapped the HDMI cables with the cables off my working HR20-700 with no change. I've done several reboots (both from the menu and red button resets) to see if it changed anything and the screen works until after the "Almost there . . . A few more moments" screen and then goes black. I've changed the connection from going through my receiver to straight into the tv. I've also tried a different tv and the HDMI connection continues with no audio/video after the initial boot up screen. Since it consistently shows something on boot-up I am hopeful that it is not completely failed and won't need to be replaced (this would be the second replacement HR21 since the first one stopped responding to remote control signals). Again, the component and composite connections work without problem, but I need this DVR to be connected via HDMI.

Any thoughts or suggestions are welcome.

[cdizzy]

Hmmm...Maybe a resolution issue?

What is the model of the TV you are connecting it to? What resolution light is lit after it goes blank?

I thought I read somewhere that certain TV's won't allow a 480i signal through HDMI. I'm sure someone will correct me on that if I'm wrong.

[rob5819]

That's a good idea, but I've had it on several different resolutions since this started happening earlier today. I currently have it connected to a few different TVs with all the different connection types (composite, component, hdmi) so that I can see what it is doing. I've viewed 480i, 480p, 720p, and 1080i programming via the component connection, while the HDMI stayed black. This is with two different TVs that have worked correctly with this HR21 for the last year, and my HR20 works fine on both TVs via HDMI at this time as well.