[Superscope]

I am looking to add a Composite Video Input to an old B/W Sharp 5T-20H TV.

Now, I'm not overly familiar with TV circuitry and this is all new territory
for me, so I'm treating this as an educational project.

I thought I would ask advice from those far more knowledgeable than myself on the subject.

The TV works perfectly. I just wish to Mod it to make it useful again.

Now, I am guessing, that an external Composite Video Signal, would need to be injected
in somewhere before the TV's Sync separator circuit?

But, not being familiar with TV circuits, I am struggling to find this point.

Could anybody with good TV Circuit knowledge point me in the right direction?

I have attached a copy of the Schematic, which I hope somebody can help me with.


Any help gratefully received.

Ian