I've acquired an older Sears brand VCR. Model 934.53520650 The
cassette door says LXI series. There's a silver "Digital" badge on the
L side of the front.

http://www.fileden.com/files/2008/3/...9238/front.JPG
http://www.fileden.com/files/2008/3/11/1809238/L side.JPG
http://www.fileden.com/files/2008/3/11/1809238/R side.JPG
http://www.fileden.com/files/2008/3/11/1809238/Rear.JPG

I'm guessing it's 15 - 20 years old or so.

What I'm running into is that thought there are RCA connections for In/
Out L/R audo & Video - in addition to coax In/Out, I can't see to get
it to pick up devices such as another VCR, A digital converter box,
DVD player into the RCA jacks, only through the coax connector. It
will output through the Out-RCA's but so far haven't gotten it to
receive anything through the IN RCA's.

I've fiddled with the Std/CATV switch on the back, the VCR/TV switch
on the front, nothing seems to have an effect. On newer VCR's I've
had, going in to the RCA's is accomplished by selecting "Line" on the
channel selector, but this old Sears doesn't have a "Line" channel,
only 2 - 13.

What I want to be able to do is select between these other devices -
Converter box, DVD, Other VCR via a switch and run the output through
this Sears VCR to the TV so I view a/or record what's going through
the VCR, which I've accomplished with newer VCR's.

The RCA in's must be there for a reason, any suggestions as to what I
need to do?

Thanks for all input.