Question about Samsung SyncMaster 740N 17" LCD Monitor

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HI..I HAVE A SAMSUNG SYNCMASTER 225MW TV MONITOR BUT HAVING A WHITE LINES AT THE MIDDLE OF THE SCREEN AND POWER "ON PROBLEM". ANOTHER THING IS WHEN I PLUG IN THE POWER CORD THE POWER LIGHT JUST BLIND THEN SIMULTANEOUSLY OFF I "ON THE POWER" BUT NO RESPONSE AT ALL SOMETHING LIKE NO POWER. I JUST UNPLUG AND PLUG AGAIN THE POWER CORD AND THE POWER IS "ON" THE POWER BUTTONS AND ALL THE FUNCTIONS BUTTON ARE NOT FUNCTIONING. I JUST PLUG AND UNPLUG THE POWER CORD WHEN I OFF THE POWER.

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Posted on Jan 02, 2017

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SOURCE: power button lights, doesnt blink, but no other

Hello,

It sounds like you have a monitor with a common problem. After a few years some LCD monitors will blow a power supply. The problem is caused by parts called capacitors overheating in the confined space of the monitor. If you are good at electronics repair/soldering you can usually fix the problem. Check out a few pictures on my web site www.ccl-la.com/badcaps.htm You can take the back cover off your monitor and look for the bad parts,replace any that look like the pictures and your monitor should work fine. The capacitors do need to be installed with the correct + and - connections, note the stripe on the old one and insert the new one the same way.

I hope this helps, if so please rate my solution.

Buddy
Corporate Computer
www.ccl-la.com
Over 21 years of computer and printer support/repair

Posted on Aug 08, 2009

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budmrtn
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SOURCE: Describe your samsung syncmaster 204bw Problem: I

Check the power supply DC filter cpas first.
If you are going to DIY and have proper tools and know safety precaution then please read on:
Most common failures in the LCD monitors are bad capacitors (bulging top/seal or leaking) in the power supply (they should be replaced in a set), blown fuses; poor solder joints, failed inverter circuits (blown fuse, shorted transistors, shorted/open transformers), bad lamps (poor solder connections or worn out lamps). You will need to open it up and inspect the inside, see example of failed SAMSUNG monitors to get some ideas what to look for: http://s807.photobucket.com/home/budm/allalbums
Post back what you see inside so we can guide you further and it will help out other people in the future also.

Basic LCD monitor troubleshooting guide:
http://www.fixya.com/support/r6150077-basic_lcd_monitors_troubleshooting

Learn about bad caps: http://en.wikipedia.org/wiki/Capacitor_plague

Capacitors kit: http://lcdalternatives.auctivacommerce.com/ he can make you a set of caps for you.

Posted on Nov 08, 2010

  • 1684 Answers

SOURCE: Hi, i have Samsung SyncMaster 225BW monitor and

A blinking power light on the Samsung 225BW usually indicates a failure in the power supply board. There are parts called capacitors that start to fail and this causes the power supply to keep restarting trying to stabilize the output voltages. If you can do a little soldering then you should be able to repair the unit yourself. Here is a link to a repair guide for the 225BW with pictures and a video showing how to dis-assemble the unit and repair the power supply board.
http://www.ccl-la.com/blog/index.php/repairing-the-samsung-225bw-22-monitor/
There is also a parts list of the capacitors you need to get for the repair.

I hope this helps, if so please rate my solution.

BuddyMc

Posted on Dec 27, 2011

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