Last time I used it was working fine..but all of a sudden when I switched on the camera the display board is not bright enough and the screen remain black
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Re:
This suggests the back light has failed.
Depends on the age of the camera -if recent purchase and under warranty send it back to the seller.
A reapir I would think for an older camera would be expensive - a new camers is a better bet
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TRY SEARCING THROUGH ALL YOUR MENU MODES. MY CAMERA IS DIFFERENT THAN YOURS BUT MOST CAMERAS IT HAVE AN ADJUSMENT MODE TO BRIGHTEN OR DARKEN YOUR DISPLAY ...
JUST A SUGGESTION NOT A SOLUTION
Hello, Please connect your laptop to an external monitor and see if the output is the same. If it displays fine on the monitor, then we are looking at either a screen cable problem or a screen problem. If the display is the same as on the laptop, then it is a problem with the display adapter on the mother board.
Your have a "Display" button that toggles thru different display modes .. one of the modes turns off the LCD backlight .. that useful if you are in bright light and dont need the backlight .. you have a very nice "transflective" display that works great in bright light without the backlight ... you can get more shots with the backlight turned off on each battery charge .(about 25% more) .
so each time you operate the display mode button you will get a different display .. one shows a hystogram .. one turns off the backlight and one puts the camera in a normal mode ..
if everything is working right then even with the backlight turned off you should be able to go outside or any brightly lighted area and see the picture on the screen ..
Disconnect the monitor signal cable from PC and switch on your monitor. It should show some logo with Red, Green and Blue colors with a message similar to "No signal". If so, your monitor is working fine. Sometimes if the brightness and contrast is set to zero using controls present in the monitor, it will not show up anything. check wheather somebody set your monitor brightness and contrast to zero. If so incease them. As a last try connect to different PC and check before approaching a service center. I hope this will help you out. :)
there is a small very delicate ribbon cable that connects the screen to the circuit board that has probally broken. it is a common problem on phones that flip like yours does.
have you tried either switching between external and internal monitor usally Fn + F5 on toshiba or try plugging a monitor into the back and see if it displays.
if you get a display on the external monitor then its probably a screen or inverter fault if you donot get a display to an external screen then it is likley t be the graphics on the board itself.
hope this helps
just had same problem latest 3g phone black screen scared me waiting for important text,hold power and front button simultaneously worked as you all have been discussing ,reboots after a min, had dropped mine last week recommend getting hard back that clips on ebay five pounds n screen cover in included
Fixed it, at least temporarily
I had the side off my trv250 examining it, especially the CCD connection. I had read the post about soldering a capacitor to pins 1 and 3 (from the left) on the bottom row. I didn't have the specific capacitor on hand, but I started touching some of the small ones I did have to those pins. I found that after I touched a 100uF, 10V cap to pins 1 and 3 the picture suddenly came back to life and stayed that way after removing the cap. I have no idea how long this will last, and I've set up the cam on a tripod in the livingroom with the LCD display facing me so I can monitor it. If you, like me, figure you have nothing else to lose, you might want to give this a try. Note: my camera was suffering from the green smeary horizontal lines problem, and wasn't completely black. I'm not sure if this makes a difference or not.
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