Question about Samsung 225BW Monitor

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I have a Samsung 225BW. It turns on very dim then goes black. I know it's the backlight because I can see the screen if I shine a flashlight across the display. What do I need to repair it?

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  • SoCal_Scorpio Dec 01, 2012

    @Buddy Mcsaprrin You were correct. I pulled the monitor apart and 3 of the 5 Capacitors were blown.. Easy fix. Thank You.. I will be ordering them from your link.



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SOURCE: dim lcd screen samsung 732n

sorry its a defective unit

Posted on Oct 20, 2009

  • 1684 Answers

SOURCE: After you turned it on and the screen blacked out


It sounds like you just have a bad backlight power supply. Go to our web site at: We have repair guides for many models of LCD monitors and the 204B guide should also work for your unit.

I hope this helps, If so please rate our solution.

Corporate Computer

Posted on Nov 14, 2009

  • 732 Answers

SOURCE: Prior to this past week my Samsung SyncMaster

kmzwolski, NO, NO, NO!!!! Do NOT wait. Use your warranty NOW!!! Do not let them off the hook. Could be any of the things you mentioned, plus "cold", intermittant solder joint, thermally/vibration fracture of solder joint on printed circuit board (SMPS/inverter circuit) Let me know how you fair with SAMSUNG. lmistyrel on or 12fixlouie on fixya.

Posted on Dec 17, 2009

Testimonial: "Thanks for the advice. I wasn't sure if I had to wait for the monitor to fail completely. I called Samsung to get the process going."

  • 1684 Answers

SOURCE: I bought monitor in 2006 up until now the screen


You should be able to repair the backlight power supply. That model monitor uses 2 different versions of the power supply. If you can open the unit and take a few pictures of the power supply and send them to us at: also include any model numbers from the power supply. We will cross reference the board and get right back with you about what you need to do for the repair.You can also check out our web site at: If you need parts we carry them in stock.

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

Corporate Computer

Posted on Dec 31, 2009

  • 5 Answers

SOURCE: samsung B931 black screen, but blue lights turn on

This problem may be caused by defective capacitors on the power board. This fix requires techical skills and should not be attempted by anyone not familiar with such work. If you still want to attempt it, here are some instructions. You will need soldering skills and equipment. 1. Remove the back half of the case. It does not connect to anything inside the monitor, so it can be removed completely. Remove the pedestal by unscrewing the wing-screw on the bottom, This allows good access to the slots on the bottom of the case between the two halves. Use a screwdriver about the same size as the 2 slost, insert and twist at each. You may want to wrap some tape around the blade to protect the plastic. Work your way around the case using a second screwdriver to keep separation. Use the corners especially because the plastic is stronger there. Remove the back. 2. Unplug all cables for the metal pcb chassis. The 4 small ones have 2 plastic covers that unsnap. 3. Lift the metal chassis and flip it over. 4. Remove the 4 screws holding the main pcb and lift the board and flip it over on top of the smaller board so you can see the capacitors. 5. Examine the caps for bulges, replace any that do not look flat on the top. Try Radio Shack for replacements. 6. Reassemble by following these steps in reverse. Note: the metal chassis is resting on but not fastened to the panel, and is restrained by tabs in the back cover, so keep that in mind while snapping the cover back on. Some photos are attached here:


Posted on Jun 03, 2010

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Here's the test. With the TV on shine a flashlight on the screen. If you can see a dim picture the backlight circuits are bad. If you cannot see a picture the T-Con board is bad. You can get parts from here: TV Parts Universal TV Stands DLP Chips ShopJimmy

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