In my retirement I came across a lot of old Onkyo, Pioneer, and other home theater receivers I would like to keep
out of the e-waste stream. I would like to get them working in whole or part,
harvest for parts to make something else, or use as-is for whatever functionality remains. A lot of them suffer
the "HDMI No Sound" problem specific to Onkyo, Pioneer, and Marantz units.
I seem to have hit a dead end in searching for datasheets for the various Renesas VLSIC audio chips that are
commonly switch matrix arrays and volume controls. Some part numbers:
In general : R2A152XX where XX are two numbers.
I can't find a datasheet for an R2A152XX device anywhere online. Any help, information, or thoughts
greatly appreciated . Thanks.