The G92 can act as a DVD source to another M processor (such as a HD621/G68) via the HDMI output.
There isn’t any volume control on the HDMI output. In the example above, the volume is controlled by the G68.
Main: G65, MD600, MS600, 218, HD621, DSP5200SE, DSP5200HCSE, M6 & D1500.
System 2: G91A, MS200, DSP5000 (96/24v1), DSP3300.