Question about Canon PowerShot A70 Digital Camera

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View screen on back of camera blank,ie dark. No picture follows despite looking thru manual view-finder.

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  • Canon Master
  • 17,970 Answers

Hi there:
CCD problem would explain the black or 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.

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.

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.

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.

Hope this helps; also keep in mind that your feedback is important and I`ll appreciate your time and consideration if you leave some testimonial comment about this answer.

Thank you for using FixYa, have a nice day

Posted on Jan 04, 2012

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