About a month ago, my Samsung SyncMaster 226BW began experiencing slight flickering with the screen. It became progressively worse and worse as the weeks went on, and finally it was at the point where it would take 5-10 minutes to ‘warm up’ and shake loose the flickering screen.

Not only was it concerning, but it was just plain annoying having the screen ‘seizure flash’ you. So, I started researching for a possible fix without buying a new monitor of course, I figured it must have been something cheap to fix. Well I uncovered that these monitors (as well as many other Samsung models + TVs) all suffered from the same woe. Bad Caps! Bad Capacitors were to blame for the flickering.

I started with the monitor, and laying it ‘face’ down on a towel to reduce the chance of damage to the LCD and opening it up to take a look:

  

and looked around the power board for bulging capacitors, and I found 2 of a possible 3 that I should replace:

Getting started here are all the tools you need:
Solder, soldering iron, 3 capacitors (2x 820UF 25V + 1x 330UF 25V)

You can purchase the needed capacitors at Mouser Electronics. Also I purchased my soldering iron and solder at my local Chicago Harbor Freight which ended up totaling me $25 bucks which is pretty cheap for a task that fixed an originally purchased ~$200 monitor that is 2 years out of warranty.

Anyway, after replacement, here is what the job looks like finished, and my monitor is now back in working condition!
 

In the end, this venture cost me less than $25 dollars, and only 30 minutes of actual hands on work. If you are saying to yourself “eh I can’t possibly do this”, well don’t worry this is VERY simple, just go step by step, detaching the old caps from the board is as easy as heating the points on the back of the board, and wiggling/pulling the caps loose. Its difficult to damage anything if you simply just pull the board out and work slowly watching not to clip anything.

Enjoy! If you have any questions or comments, post below.



  • Maciej

    Following soldering tips of new caps that were installed should be clipped to the same length as other elements to prevent electric arc particularly if board is installed in metal cage.

  • http://www.facebook.com/profile.php?id=615060580 Durin Brown

    OMG I’m totally going to try this out this weekend… if this is all I need to do then im hoping it will fix it. Thanks for this post! I knew there was something I could do but I wasn’t even sure where to start :D

  • Chris

    Worked like a dream for me…. used Panasonic FR series of caps from element 14

  • BOB

    Samsung tells me that enough of us complain, the item might go into recall status — which means they fix it

    THIS IS A HINT, FOLKS — CALL SAMSUNG!

  • Ronbrill

    Same – found 3x820uF and 1x330uF caps all with slight bulge at top. When checked with capacitance meter all were well below their spec. Replaced 820uFs with 1000uF and 25V (just what I had on hand) and 330uF with 470uF 25V. Its now working like a charm. thankyou for post. It was not difficult to pull apart 3 screws at bottom plus 3 holding the stand. It should then unclip, removed small lead from power supply and larger lead to monitor at top (just carefully wiggle free while pushing on the little releasing clips). Was then able to turn unit over to gain access to power board, removed 3 screws from board and removed four more little leads (just remember where they go) and had full access to power board. Replaced bulging caps as explained.

  • Jakub

    Bob, this issue has to do with bad capacitors from years ago, when the market was flooded by them (it wasn’t just Samsung, I’ve had bad power supplies & motherboards that suffered from this, a colleague of mine at work had this happen with his HP Laptop, the motherboard had to be replaced. You can call your manufacturer, but good luck getting it RMA’d after its warranty period.