20 Most Recent Samsung 793S 17" CRT Monitor Questions & Answers

Answer here: http://www.fixya.com/search/p395439-samsung_syncmaster_753s_ivory_17_crt/vga_pinouts

The default resulution is 1024 x 768, you can keep the Screen Refresh list at 75 Mhz

If you have been at "Out of Range" then you need to reboot and press F8 before windows load up, then choose VGA Mode. When windows finished loading you can fix the resolution again as you like. Hope this fix your problem

Best Regard!

look in MDM electronics for cross reference.

On these older CRT monitors when you have that type of problem it indicated that the high voltage power supply is not putting out the right voltage to charge the picture tube. As the power supply gets weaker the time to show a picture will take longer and longer. It is not worth repairing the unit because parts will run much more than a replacement monitor.

Check the service manual and it will give the detailed drawing and info. relevant to your subjecthttp://www.eserviceinfo.com/download.php?fileid=21596By the way, the fuse has a rating written on fuse even on the bottom of its circuit board in printed form. Always replace the fuse with the same capacity/rating for safety purpose.best of luck!

There's a good chance you have failing electrolytic capacitors either in the power section or the inverter section or both.
Any caps in these sections (or any) that look bulged at the top, or bulged/leaking at the bottom need to be replaced.
If you repeatedly turn it off and on, eventually it'll probably stay on, but every time you turn it off, the TV will get harder and harder to start up until one day it just won't.
Sometimes you have to do the opposite to start it up and unplug it for some time and then try again.

If you aren't tech savvy, don't worry, read the rest of this solution and watch the videos.

If you are handy with a soldering iron and can identify the power supply and inverter / FM section for the backlights, an inexpensive handful of capacitors will likely fix you right up.
Match the capacitance on the capacitors. Go over voltage if you can, and still have them fit.
IE - it's not a bad idea to replace a 10V cap with a 16V or 25V or even a 50V, but don't replace a 680uF cap with a 500uF or a 1000uF (unless you are positive it's only doing ripple filtering, and even then, you should go OVER, not under the uF rating).

Most of the caps that go are 10V 1000uF or 3300uF.

I found some great videos of the procedure (for many Samsungs with the same issue) on youtube.

http://www.youtube.com/watch?v=Mm51C_RDIZE
http://www.youtube.com/watch?v=BNHHrgX_6cs&feature=related
http://www.youtube.com/watch?v=8l0AUj8QUkg&NR=1&feature=fvwp
http://www.youtube.com/watch?v=Y7b_nTaZYcU&feature=related

As you can see, this issue spans plasma TVs, as well as large and small LCD TVs and monitors.
The parts are cheap, and skill required is minimal.

in he control pannel

Hello and welcome to FixYa!
As a first course of action, please check the connector of the monitor at the back. If it's loosen there will be no signal to the monitor.
Hope this helps and thank you for using FixYa! Have a good one!