Question about Samsung B2330 23 inch Monitor
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Posted on Jan 02, 2017
Yes, It sounds like the backlight inverter circuit is shutting down. No inverter power, no backlight. On some monitors the inverter circuit will shot circuit the power power supply which makes the power light flash on some it just kills the backlight. You can usually check with a flashlight. Hold the flashlight pointed at the screen and see if you can see any of the icons or background picture. If you can then it is the backlight circuit or backlight tubes, usually the circuit.
Posted on Jul 24, 2009
hello i have the same problem, there are 4 lamps (bulbs) inside the monitor when some of them falls the system turn off, cheks and good look
Posted on Oct 27, 2009
rcpips, You may need to replace one or possibly 5 -8 aluminum can "electrolytic filter capacitors" on the "switch-mode-power-supply/CCFL inverter board. If, as you say "works for 5 or 6 seconds" then that means that fuse is good. Another thing you will need to inspect SMPS board for is "cold" "frosty looking" solder joints where the components (surface mount or through hole) are soldered to the copper circuit traces. May need large magnifying glass or low power inspection microscope to locate them. Resolder any that look bad or loose. Some solder joints have thinner than "hair" thermal fractures that can also cause YOUR TYPE OF SYMPTOM!! PARTS: digikey. mouser. newark. and possibly Radio Shack. If buying filter capacitors, make sure they are rated 105 deg C only!! NOT 85 deg C!!! If caps need to be replaced (swollen, leaky) be sure to tell us the brand name you find installed on your unit! CAPXON, ELITE, JUN-FU are just 3 that you don"t want to find in your unit. BAD news if you do!! If DIY suits you, remember to document with "close-up" digital stills your unit tear-down, so you can reassemble unit without any "extra" parts laying on kitchen table!! Filter capacitors are polarized. You put them in + to +, - to -!!! if you put them in backwards they go BOOOOMMM!!! Hope this helps a little. lmistyrel on aim or 12fixlouie at fixya.
Posted on Jan 30, 2010
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The picture board on your monitor is bad, since it goes off after few seconds and the power led or button is on, it means the picture board of your monitor has developed fault and will need to be replace.
I advice you replace the picture board on the screen of your monitor to solve the problem of the blank screen.
Posted on Jul 18, 2010
nokerns, Internal ac to dc power supply problem might be cause of your "black screen of death" that plagues all brands of "cold-cathode-fluorescent-lamp" back-lit lcd monitors. If unit is covered by Samsung warranty, then contact Samsung and complain about "premature failure" of the unit's power supply and see if they will do a swapout for same model unit. As a side-note, you should also learn how to do the "black-screen-of-death" flashlight test that every owner of a ccfl backlit lcd monitor should know how to perform and understand the results of the test. Do some reading in the FIXYA profiles of "budmrtn" "buddymc" "12fixlouie" and other lcd monitor tech's here on fixya and also view some DIY repair video clips on YOUTUBE. You will truly be amazed to find out how prolific the BSOD problem is in the lcd monitor industry. Please let other know what you will do to solve your monitor's problem by doing a reply to this response. If this was of some use to you then please rate this response on fixya. Bye for now. 12fixlouie
Posted on Jul 21, 2010
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