Hi, thank you for contacting JustAnswer.com. My name is Russell. I will do my best to provide the right answer to your question.
Do you require a hard-copy, or paper, manual? or would an online copy be good enough?
Given that it is an RCA product, have you tried contacting RCA themselves?
Their contact info is:
North America Home & Portable Audio products
(Remotes, Antennas, Clock Radio, Headphones, MP3)
North America Sound Bar Systems
Their 800 number might provide help, or might just refer you to another co. I'm not sure.
That manual for that model # ***** ***** very hard to locate. I have searched for a while without finding any source among my usual sources for manuals.
This co. might find a source for you, if you put in a request with them: