Thanks Cameron,
Didn't actually remove the drive, but I did go back in and went over everything in the optical disc removaI guide that I did before and couldn't see anything amiss. I shied away from going as far as the Airport / Bluetooth card replacement it looked quite complicated ,for this beginner. The only thing I could think of was in step 5, it says it's necessary to slide the small plastic cable retainer( boxed in red ) glued to the logic board, Well I certainly couldn't see it and proceeded to remove the camera connector as I had the others. This may have been my mistake and a possible result in damage of some sort. Anyway I took the laptop to my local Mac man this morning and he's looking at it some time this week. Fingers crossed .
Regards Peter.