Problem with digital out on OPPO 981 for DVD BUT CD is OK - help please! - AVS Forum | Home Theater Discussions And Reviews
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Old 05-17-2014, 12:34 AM - Thread Starter
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I have a problem the the 981 HD with its RCA digital out when playing DVDs - it motorboats in synch with the platter motor.

Oddly the audio via external DAC is OK with CDs but not with DVD (Although the video is fine).

Audio out of the L/R analog (using the internal DAC) is fine for DVD audio, but not using an external DAC.

We have not tried it with Toslink but suspect that is the same.

I contacted OPPO for a service manual or circuit diagram but they refused, although offered to help if we posed questions. So far they are not responding.

Any suggestions or ideas where I might find an answer on the net would be appreciated.



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Old 05-17-2014, 05:30 AM
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It doesn't have much activity these days, but try posting in this thread:


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Old 06-08-2014, 12:40 PM
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What external DAC are you using? Not all DACs can handle all digital formats, and the digital audio on a DVD is typically a different format from the digital audio on a CD.

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Old 06-09-2014, 11:04 AM
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DVD uses Dolby AC3 or DTS digital audio. This is a compressed 5.1stream and cannot be input to a basic audio DAC. When you play a CD in a DVD player, it outputs standard 2 channel PCM which any DAC can use.

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