I’ve got a puzzling HDMI/I2S audio problem to figure out. I had my Oppo 203’s power supply replaced with a modified one by Ric Schultz of EVS (tweakaudio.com). He’s got a lot of experience with 205’s and some 203’s and is knowledgeable and has a great reputation among audiophiles. Before I sent the 203 to him, I had been using two methods of feeding audio from the 203 to a DirectStream: coax cable, and through an external HDMI/I2S conversion card some of us got off eBay (discussed in “Getting Oppo DSD Output to the Direct Stream Dac” thread). Both worked fine. Before sending the unit, I also tested Oppomod’s internal HDMI/I2S conversion card, which has its own HDMI port, and it worked ok. Today I got the Oppo back and while the coax connection delivers sound, neither of the HDMI/I2S methods does (I disconnected the internal card’s ribbon cable to check the Oppo’s HDMI audio out port via the external box). Occasionally, I get momentary static with the external box method, but that’s it. The HDMI video output (Main) to the TV is good; i.e., there’s a picture). Ric says he didn’t touch the HDMI set up, except to physically mount the Oppomod card and connect a ribbon cable to it. Just to check, I reinstalled the latest firmware (June 2018 version) and reset the factory defaults, but neither of those solved it. I’ve also tried other HDMI cables.
So I have two questions:
Any idea what might be going on?
How do I test the Oppo’s HDMI Audio out port independent of the dac?
My set up is as follows:
- cable box to Oppo HDMI In
- Oppo Audio via Coax and HDMI/I2S to DirectStream
- Oppo Video out (Main) to HDTV
- DS to powered speakers