Not to worry, no hijacking.......
The original adapters were small 300-75 ohm matching xformers.
IIRC it used a 3.5 mm mono. The outer is ground & the tip is
75 ohm unbalanced, what every VHF tuner uses even if it has
twin lead terminals. If there are no separate UHF terminals there
is also a splitter in the set.
The connector is standard composite video & audio for use with
a camera, U-Matic or reel to reel VTR. Very common in the day.
The consumer model is a TV920U. It does not have the extra inputs
& switch.
73 Zeno
Quote:
Originally Posted by tmart
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? |