Screen shows no image with initial start up and screen power on. Turn off, turn on (screen flashes), turn off, turn on (screen flashes and stays on a little longer), turn off, turn on and then finally it stops flashing and displays an image. Is this an issue with the back-light? What type of servicing is required?
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Re: Screen flashes - samsung 215tw LCD monitor
Walkstex, I will answer the last ? first. All LCD monitors WILL NEED to have their "cold-cathode-fluorescent-tubes" replaced!!! As long as your display had a Bright, Crisp image displayed on it before this "FLASHING" symptom occured, then you don't need new CCF tubes. Your problem seems to be occuring in the electronic ballast circuit called an INVERTER. It Takes 12-15v DC and turns it into 800-1200v ac to light up the CCF tubes. This is the same technology used in the new style curlieQ screw-in light bulbs called CFL's. Only difference is they use what is known as a CONVERTER circuit----AC to AC!!!! And the tubes hung horizontally on the rear of your LCD panel are thin and straight. So, to answer your first ? Yes, it is an issue of getting the CCF tubes to light up. (backlighting) Now, I should also mention that there could possibly be a problem with the main power supply in the monitor. It is called a "switch-mode-power-supply" (smps) that supplies DC for the digital signal processing board (typ +5v) and 12-15v for the inverter. Well, This typical type of symptom could be as simple as a thermally fractured solder joint on the power supply board or some bad Filter capacitors could also need replacing. I suggest that you search web to find out more about the things I have mentioned in the above text. Do search for things like "swollen capacitors", "Bulging Capacitors" and checkout www.badcaps.net for some pictures of typical failures. Get back to me if you want to carry this any further on your own. Bye for now. I'm louie12fix on fixya or lmistyrel @aol.com
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Check for a failure of the capacitors on the power supply board. This is a common problem with these units and its a very easy repair. Here is a link to a repair guide for the SyncMaster 214T which uses the ame power supply board so the repair information would be the same for the 2 units. http://www.ccl-la.com/blog/index.php/samsung-214t-repair/
You could be dealing with two different problems, bad monitor, or a bad videocard/pc.
I'd swap the monitor out to verify that the computer is working as it should first. Once you determine that the PC is in fact fine, my suggestion would be to change the resolution on the PC to a lower setting then normal. Once that is done Plug the Samsung SyncMaster 215tw back into the pc and see if it powers on.
If it does not, i'd check the cables and swap them with something else to make sure thats not the problem. If you have another PC available, i'd test the monitor on that PC to make sure that it is not the issue.
After all that you'll come to the determination on what the problem is. Sadly, if the LCD is bad you'll have to replace it as they are extremely expensive to repair and generally not worth it.
However, i'd verify if it is under warranty or not, you never know! you might be able to get it fixed for free :D
When the monitor starts up you should be able to see the Samsung screen logo, if not it does point to the monitor. But lets be sure! hook a spare monitor to the computer, if it is okay! the Samsung Monitor is the problem and is not cost effective to repair, cheaper to replace. Now if both screens show the same problem, this indicates the Video Graphics Card in the computer is the culprit.
Symptom : No images on the screen. I cannot turn on the monitor.
Checklist 1 : Is the power cord connecte properly.
Action : Check the power cord connection and supply.
Checklist 2 : Can you see "Check Signal Cable" on the screen ?
Action : (Connected using the D-sub cable)
Check the signal cable connection.
Checklist 3 : If the power is on, reboot the computer to see the initial screen (login screen), which can be seen.
Action : If the initial screen( the login screen) appears, boot the computer in the applicable mode (the safe mode for Windows ME/XP?2000) and then change the frequency of the video card.
Note : If the initial screen does not appear, contact the Service Center or your dealer.
Checklist 4 : Can you see "Not OPtimum Mode", "Recommended Mode 1440 X 900 60 Hz" on the screen.
Action : You can see this message when the signal from the video card exceeds the maximum resolution and frequency that the monitor can handle properly.
Adjust the maximum resolution and frequency that the monitor can handle properly.
Checklist 5 : There is no image on the screen. Is the power indicator on the monitor blinking at 1 second intervals ?
Action : The monitor is in Powersafe mode.
Press a key on the keyboard activate the monitor and restore the image on the screen.
If there is still no image on the screen, press the On button. Then press any key on the keyboard again to activate the monitor and restore the image on the screen.
I have the same problem its defenitly a problem with the lcd monitor not with the graphics card nor the pc. I hooked up the digital and afterwards the vga connection both had the same result. 1 s perfect screen all visible but than black. pushing the on/off or standby button again shortly 1s the display works than it blanks. Did the same test while connected to a dvd player via the composite video... same problem . Since the previous posts are that old and without a solution I guess there is no hope in getting it fixed.
If it is not
still covered under warranty, start by opening the case. Once you
remove the power board, you will probably notice several capacitors
(the round, can shaped parts) that have tops that are not flat. If you
see any that have bubbled tops instead of being completely flat, they
need replaced. Once they are replaced, the monitor should turn right
back on. Hope this helps.