Are you having any issues with digital output from the HDMI output?
Have you tested a Windows* based operating system such as Microsoft* Windows* 7 or Microsoft* Windows* 8 in order to isolate the issue?
No, no issues with the digital output. I believe now that the problem has to do with inadequate electrical grounding in our house which is very old. I gave up for now the idea of digital-analog signal conversion. Thanks.
You are welcome. Anything else on this, please let us know.