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A boot chime means the Mac has passed POST, that the screen remains black initially suggests there is a problem getting image to screen which could mean a bad cable to the LCD or the LCD display its self is having problems.
By connecting to an external display you verify the graphics on the logic board is functional, and it could get you up and running till the display problem is fixed.
Also try powering up and when you hear the chime, hold down the COMMAND+OPTION+P+R keys, and keep holding them till the machine has chimed 3 times, this will reset the 'BIOS' in case there is a glitch there stopping the display from showing up.
Can you more clearly what you mean "while taking photo"?If lcd not display image...is that any text or symbol in the lcd?If you can still see the symbol or text in the lcd, I think you have trouble in your lens or ccd. Trouble in the lens usually make the lcd display white screen. And, if ccd trouble the lcd display white horisontal line and if so hard broken the lcd display black screen, but the symbol or text is shown.
hello basicly the the liquid is the lcd that lays between the screen that gives you the display if this fluid escapes it will no longer display properly and as it leaks more display will be lost ,to solve you will need to replace the screen
Normally when this type of problem happens, the first suspect would be the inverter board, then the filter capacitors and lastly the mainboard.
A defect in one of the lamps and faulty inverter IC may cause the display to shutdown as well. If the lamp is defective, it will send a feedback and cause it to stop producing output signal thus the display just shut off once you switch in ON.
CCD malfunction, common with Sony manufactured CCD chips. You are in luck, its a free repair regardless of warranty date. http://www.usa.canon.com/consumer/controller?act=ModelInfoAct&tabact=SupportDetailTabAct&fcategoryid=223&modelid=8044#
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