My camera turns on but it cannot take picture, I don't know why? the last time I took a picture the screen just went black and now it just been like that .

A CCD problem would explain the lines on your pictures and the lines on the LCD (since the CCD is used to feed the live image). CCD (Charge Coupled Device) is one of the two main types of image sensors used in digital cameras.

When a picture is taken, the CCD is struck by light coming through the camera's lens. Each of the thousands or millions of tiny pixels that make up the CCD convert this light into electrons. The number of electrons, usually described as the pixel's accumulated charge, is measured, then converted to a digital value. This last step occurs outside the CCD, in a camera component called an analog-to-digital converter.

Some symptoms of a defective CCD 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.

In order to correct this issue, the repair facility needs to replace the CCD. This is not something you may do on your own; check this article for additional details: Bad CCDs. This, isn't a good new, but hope helps to solve it.

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