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

Download driver from Samsung:
http://product.samsung.com/cgi-bin/nabc/support/b2c_downloadcenter_detail.jsp?eUser=&mobile=N&oid=71250&cntType=DR&cntId=181761&lang=ST

the "flyback" is the VERY high voltage transformer that powers the CRT through a cable that plugs into the CRT inside the monitor case. Don't try unplugging, even with power off, as it has to be discharged to ground to remove risidual voltage, like a capasitor. This voltage is about 35,000 vdc.

This is usually caused by windows display properties is operating incorrectly. One of the options is to default everything under your display options using control panel. If it still is blurred then try using the optimized screen resolution and enable the cleartype in Windows. If after doing that.. it remain blurred, try to use the Cleartype Tuner by Microsoft at http://www.microsoft.com/typography/...ePowerToy.mspx
See also http://www.microsoft.com/typography/...ner/Step1.aspx

Hope this helps. Let me know.

https://www.google.com/search?q=vga+connector&client=firefox-a&hs=JJS&rls=org.mozilla:en-US:official&channel=np&tbm=isch&imgil=yflFkK5RsTaSDM%253A%253Bhttps%253A%252F%252Fencrypted-tbn1.gstatic.com%252Fimages%253Fq%253Dtbn%253AANd9GcQzjpXc_B8UJGgKmEQf5YVRLwVRhyzuYKZQ5xRr0KYuxQDKy18S%253B533%253B338%253BfSNqtY6mmrcChM%253Bhttp%25253A%25252F%25252Fwww.theavguide.co.uk%25252Fview_page.php%25253Fpage%2525253D18&source=iu&usg=__PgPxDkfgCvjc7ykTkFG6ct488KU%3D&sa=X&ei=Dr7oUoXqN6S6yAPqooHQCA&ved=0CDgQ9QEwAw&biw=1280&bih=861#facrc=_&imgdii=_&imgrc=yflFkK5RsTaSDM%253A%3BfSNqtY6mmrcChM%3Bhttp%253A%252F%252Fwww.theavguide.co.uk%252FAdvHTML_Upload%252Fvgaplug3.jpg%3Bhttp%253A%252F%252Fwww.theavguide.co.uk%252Fview_page.php%253Fpage%253D18%3B533%3B338 vvga connector http://servicemanuals.pro/servicemanuals/samsung/service_manual/monitor/ctr/793df/details.html service manual

A flyback transformer (FBT), also called a line output transformer (LOPT), is a special type of electrical transformer. It was initially designed to generate high voltage sawtooth signals at a relatively high frequency. In modern applications it is used extensively in switched-mode power supplies for both low (3V) and high voltage (over 10 kV) supplies. this is use only on monitor the old one that used CRT TUBE.

what particular part in the crt monitor?. if the horizontal transistor in the board which mean somewhere in the board getting bad. if just only a heat which emit by the whole unit it was normal since it was a CRT type unit. just let me know what part did you asking so i can give you further solution good luck.

Time and aging of the machine and it hardware components.When it is winter or rainning seasons tries to keep the computer on and running every two a day even u are not using it,too it is not to putting to much more pressure and stress on the the computer components to have start up cold and put on much more stress of the season of that year stress for hardware of the computer to do the powering of the computer to restart booting sequences again.

pls find attachment

Hello, Would suggest you get a new one,since monitor are not that expensive, note that the monitor has a large capacitor which stores charge in high voltage,it will not be good for somebody without the required skills to open this monitor.It can lead to serious injury,better still if you cannot buy a new one,please give it to a technician to do it for you. Regards

Possibilities:

* bad connection of video-cable to monitor
* bad connection of video-cable to computer
* bad video-cable
* bad monitor -- connect to a different computer to see if it works, or displays the same symptom
* bad video-card -- connect a different monitor to see if the symptoms persist

It's probably time to responsibly-recycle that CRT, and spend $100 to buy a new 19-inch LCD monitor.

For a copy of the user manual you can go to:

http://online.manualspace.com/computer-monitors-free-ebooks/samsung-monitor-service-manual/4207/samsung-syncmaster-793mb-793df-crt-monitor-service-manual-91.html

Scroll down this page and you will see a red link entitled "Download Samsung SyncMaster 793MB 793DF CRT Monitor Service Manual".

Right click on this link and select the menu option "Save Link As".

Save the file to your computer then you can simply use Winrar to extract the file.

Would you kindly rate my answer please if this has helped resolve the problem - thanks :)

Here is the service manual; http://elektrotanya.com/?q=showresult&megnev=Samsung%20&megnev2=SyncMaster%20793DF&kategoria=monitor&kat2=all

http://www.fixya.com/support/r6150077-basic_lcd_monitors_troubleshooting

Failed TV and Monitors: http://s807.photobucket.com/home/budm/allalbums http://en.wikipedia.org/wiki/Capacitor_plague

try C5804 or J6812 instead of bu2527..replace IRF630 in 50 volt supply line.it may b faulty...bt if problem after that then flyback transformer may b faulty. repalce it with same one.

With a piece of wood or plastic hit the flyback with the monitor turned on. If you note some change in the noise. Replace the flyback.
Normally, it is the cause of the noise.

Warning: High Voltage!! Do at your own risk!!!!!!

Best regards,

Hello,

The picture board on your monitor is bad, since it turns black atimes, it means the picture board of your monitor has developed fault.

The best thing for you to do now is to take the monitor to a local repairer within your vicinity or any service center to help with the replacement of the picture board because the fault is not something you can fix yourself. in order not to complicate issues.

Take care.

there is a diode near E.H.T.which is double and connected in series internally replace it. if persist then there is transistor near E.H.T. check it .it may faulty replace it

try to wiggle the vga cable/dvi cable and see if the brown lines disapear, if not.there is a problem with the monitor