I have a sanyo camera 7.1 mega pink and everytime i try and take a picture my screen goes black and shuts off without the camera piece going back in! I have almost the same problem except when I take a picture and go into the mode to look at them it is completely black. My camera was doing great and then all of a sudden it did this when I had just been taking pictures with it. Any idea what to do?

In the first case, if the camera turns off by itself with lens not retracting, try fresh alkaline battery. If that does not work, then the ribbon cable from battery charger to mainboard inside the camera is probably causing the problem.
An internal contact can also cause same problem.

If instead pictures are completely black, then there are several possible reasons:

1 There is a setting problem, remove and put back batteries to fix the problem.
2 The camera curtain is stuck and it is not opening.
3 The CCD sensor is faulty, more likely the ccd sensor contacts are broken.
4 The lens assembly has an internal problem.

Apart situation 1 , in all the remaining cases the camera will need repair.

Regards.