the C=1084 came in different version's but I would guess yours has composite in on the back so all you need to do is get some composite cables and connected your VCR to the 1084. Then theres a little round button (well 2) on the back press it (i forget which one exactly so just play) until the monitor switches to the composite in and you'll then get your VCR on your 1084...
I do know one button switched the input and the other switches between colour and greyscale, so if everything goes black and white you know youve pressed the wrong button :-)