Got A Screen :(

I got a £10 14" colour TV from a car boot sale today. Also got a £1 19mm flat drill for the back door lock hole and some L brackets (for a bit of strength)

Got the TV and knocked up a quick and dirty switcher / harness / scart hack to test the screen and the boards I have.

Can't get a picture at all. not sure what is wrong. I tested the boards out on my cocktail cab. Only 1 board out of the 3 I have actually works - and it has colour / graphics issues :(

I tried the board out on a known working supergun I had lying around and it works thru scart on the tv fine.

I'm stumped as to why my setup doesn't work. I have followed the instructions to the line and it still won't display.

The really annoying thing is - The first thing I ever built using electronics was a home made supergun and it worked fine, first time!

On the good side - I took the back off the tv and the mounting holes will be absolutely fine for the machine - providing I can get it to display!

If I can't - I may have to go the dirty Mame route... Boo!