I have an extremely similar model,
Sony CVM-920U.
Unfortunately my model doesn't have the UHF/VHF screw inputs. So I made an adapter for COAX from the large diameter on this set to common small diameter, but when I input my analog cable, or RF modulator, there is always very grainy images. I can only get any image at all when I don't contact the outer coax shielding, only the middle signal wire can touch to produce an image.
Not trying to hijack this thread, I was just wondering, is there something about these coax inputs that are different from modern coax signal? Can someone reference me to the specs.
Also, what is the pinout to the strange I/O port with 8 little pins?