why does my rotel 855 not respond to any rotel cd remote

[harlen]

my rotel 855 does not respond to remote control

 

[KrisBlueNZ]

Have you tried THIS?

 

[harlen]

Have you tried THIS?

have several working rotel remotes for this model unit works great but not with remote

 

[pyromaniac4382]

Is the receiver blocked?

Maybe a piece of black tape over the area highlighted below?