Thanks RuggedCircuits
I thought so, but when I hooked it up with the other pins, it works but very unstable and flickers the LED display, unless I put my finger across the output pins , then its fine !
I was going to waste a bit of time on it, but as soon as I connected the scope ground to the -ve supply, the display went off anyway, so 5 minutes connecting three jumpers looks the logical way to go !