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Are you talking about spots you see on the pictures? Are these spots you see in the same place on all the pictures? If you really want to see if your sensor is dirty pick a clear day with a great blue sky focus to infinity and then shift the lens to manual focus and the program to "P" take a pitch of the blue sky. Then down load this picture to the computer and open it up to 100% and look it over if there are spots then the sensor should be cleaned. Even if you take the lens off and look into the camera body you still can't see the sensor all you are looking at is the mirror inside the prism box. To clean the sensor you need to put the camera into "clean" mode which locks the mirror up. It may be possible you just have a dirty lens or UV filter.
It can be a piece of sticky dust or dirt on sensor surface which can't be removed with a blower or canned air. You can try to remove it by yourself with special cleaning swab and cleaning liquid. But this process requires some experience, so the safer way is to bring camera to service center where sensor can be cleaned fast and risk free.
Hi cutesaying, if it is on all you photos in the same location it is one of two things, worse case is a bad sensor location (unlikely), most likely is there is crud on the sensor. You can perform a sensor cleaning if you fee up to it with specialized tools. Search the web for sensor cleaners there are many. Changing our lens is the most likely way dirt, and the like, gets on the camera sensor.
Hi, if you need to clean your camera from the inside, I´d strongly advice you take it to a shop where they do it for you. It is not easy to disassemble and cleaning is more difficult than one would think. Even a small dust particle can scratch your lenses and the´re then gone. I advice you against a home cleaning of your camera.
If this white spot is always exactly the same, but moves off the picture when you start to digital zoom and not optical zoom, there is probably something on the sensor. You mentioned that when zooming, eventually it moves. Are you in digital zoom mode at that time? (The switchover from optical to digital zoom is automatic, but you can disable it). Is this white spot blurry or sharp? Can you see fringes of the image at the edges? (This would suggest something on the lens).
If there is a piece of dust inside the lens ,you may be able to see it looking down the lens. How big is this spot?
Either way, if the camera is new, can you still return it?
The problem you have with the picture is a problem with the video circuit. Most likely a coupling capacitor or the Y/C Video Jungle IC. the half mood on the picture could be a seriuos problem though. You will need to take off the front screen and while the set is on, look down all three picture tubes. Is there what looks like a spot on one of the pictubes surfaces? If there is, that tube is going to have to be replaced. If it looks like something floating around inside the tube, maybe the tube can be disassembled and cleaned.. Also check the mirrors inside the set and on the surface of the three lens, maybe there is a spot on one of those. Good Luck.
It probably has a broken mirror or somethings inside the set blocking part of the pic. Now for ther picture all red. If your not a tech I highly advise you going insidew this . Unless you know about the saftey issues and the HI voltage issues. Your problem could be a shorted Picture tube all the way to na bad distribution block . Good Luck