My vivitar vivicam X327 only takes black pictures. Everything works but nothing shows up when I take a picture

If you transfer the pics at pc, is the same condition? Black pics in pc? If yes, then isnt the LCD viewer, sound like a malfunctioning CCD-image sensor. Rare, but possible problem with your LCD screenviewer... in both cases (LCD or CCD) this isn't a job that you could solve yourself; this wrong include distorted images or abnormal colors, scratchy purple lines, blank or black pictures, and/or black videos with good sound being recorded on the camera's flash card.

I suggest check THIS LINK for additional details in this previous solutions for an Defective CCD (Charge Coupled Device) and next contact your technical service. I strongly suggest (taking into consideration the age of your camera) to evaluate the cost of repair versus the cost of a new camera with similar features, before making a final desicion.

Hope this helps.