Black Lcd and pictures.

hi,
it sounds like the tinny switch that detects the rotation of the LCD is blocked on the 180 degrees mode. it can be fixed but you need to disassemble the cam ! or may be try a little shock near the hinge... sometimes machines need a little kick !

Take it to a repair facility

Might be a case of the backlight giving up. If this is the case, you have two options, replace the backlight (expensive and pretty difficult to do a good job of) or replace the whole thing. I'd go with the second option, as LCD monitors are pretty cheap at the moment! Stick with Samsung SyncMasters though, they do good price monitors that are reasonably reliable too. Either that or a Dell monitor.

Thanks
Moza805

This is usually caused by capacitors in the monitor power supply that go bad. This site shows the procedure to open the monitor and get to the parts that are the most common failure. (They want you to pay to join to see the full-size pictures in all the steps, but there's enough detail so you can work with the small ones.) When you see the guilty parts they usually have tops that are bulging (should be flat) or even split.

It's not difficult to remove and replace the capacitors, but it does require some experience with soldering on electronic circuit boards. It's possible to do more damage if the removal isn't done correctly.

When you purchase replacement capacitors, use parts with the same value (in microfarads, abbreviated ufd or mf on the part) but the next higher standard voltage. The original parts are 25-volt rated, and you can use 50-volt parts which are only a little larger. The low voltage rating is usually why these go bad in the first place. (The manufacturers save a little by using the lower rated part.)

Good luck with the repair!

You can look on eBay for BACKLIGHT FLUORESCENT BULB for your model.

They're around $20.00.

The problem is the lens is not opening, If you look into the lens you can see it is closed. This will require a trip to the repair shop.

I had the same problem and it was quite difficult to open the case. So now I want to share my experience on how to open it and also publish some helpfull pictures (of course these also works for the 2007 screen):

1. I made a tool from the top of a aluminium can. It's quite thin and bendable but still strong enough (make sure there are no sharp edges).

2. You have to understand how the parts of case are joined together and hold by snaps. Here a piture of a snap. The front frame has bails(?) hitching on the snaps (see picture 3).


Move the tool between the bails and the snaps so they will let go. The first snap is always difficult. Start at the top or bottom, because the sides have a "double" wall (see picture 1 black and grey) and it is difficult to find the right way.

There are five snaps on each side. Always one in the middle, one on each corner and one between. Start with the middle one. Use a screwdriver to get a little gap between the two parts of the case. Push the tool inside til the snap will let go and the case opens a little. Continue with the next snap.

When the case is open be carefull there are same cables soldered to the front part.

If you have a problem with the power button. Usually there is a thin bolt missing like the other buttons have. I glued a very small screw into the button. One like used to fix the small circuit board. Make sure the length is appropriate.

Hope this helps anybody.

Clibo

Sounds like a temperature problem if it takes a while for the problem to happen there are several things u can try and figure it out yourself. 1. Remove the back cover of the tv and turn the tv on. 2. use a hair dryer and apply heat to various boards of the lcd (inverters, power supply and scaler) while applying heat to see what board reacts and makes the tv go dark. More than likely its a defective LCD panel and its just as easy to send it back and get a replacement TV.

First try the obvious, and press your DISP button once with the camera turned on. If that doesn't work, next thing to try would be to reseat the LCD ribbon cable into its connector. This is not too difficult, but it does require opening up your camera. But before proceeding, note that the camera still takes pictures at this moment. There is a possibility that something might go wrong, and the camera will no longer be operational after the repair. Please remember that it's ultimately your decision to proceed with a repair.

The following webpage describes disassembly of the A520/540. If you decide to repair it, only proceed as far as the first two pictures to remove and then reseat the cable. Follow the LCD ribbon cable to where it connects to the circuit board. There should be a connector with little hinge points that you lift with your fingernail to unseat the cable. Clean and dry the exposed end of the cable with a Qtip with a single drop of rubbing alcohol. After thoroughly drying, reinsert the cable into its connector and push down on the hinge points to reseat it. Then reassemble the camera:

http://photography-on-the.net/forum/showthread.php?t=251630

Also please note that there is a risk of electrical shock. Please read the following to learn how to mitigate this risk:

http://camerarepair.blogspot.com/2007/11/important-warning-camera-flash.html

Just had the same problem (black display). I moved my hand in front of it and took pictures of things but nothing happened. Then my girlfriend tried to point it to a lamp, and all-of-a-sudden it kinda woke up from a screensaver or something. So weird, but it worked. Perhaps it needs enough light in order to start using the display and lens. I couldn't take any pictures when the LCD was black. So, try pointing it towards a strong light source before you break your camera.