Question about Samsung SyncMaster 204B 20.1" LCD Monitor

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How to replace backlight in Samsung 204B. Monitor (3.1 yrs old) takes 10 min to warm up.

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Asachs493, First go to YOUTUBE and view the longer and more informative video clips of "lcd monitor disassembly" and "lcd monitor repair" to see if you really want to do that!!! Also visit all of these sites:-- www.ccl-la.com/badcaps.htm and www.badcaps.net , www.lcdparts.net Remember tihs!! Replacing "cold-cathode-fluorescent-lamps" may not be the problem!! Your problem may be in the circuit that generates the high voltage that starts and sustains running voltage for the lamps!!! It's called an "electronic ballast circuit" and because it is in a lcd CCFL monitor, it is refered to as the "inverter circuit" (dc to hi ac voltage) The new "curlieQ CFL energy efficient, screw-in light bulbs have "converter" electronic ballasts!! (ac line to hi ac voltage) Just FYI. 12fixlouie

Posted on Feb 02, 2010

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Related Questions:

1 Answer

204b backlight getting dim


change the inverter if it does not work ,you will have to change the backlight bulbs or you change the screen

Jun 22, 2013 | Samsung SyncMaster 204B 20.1" LCD Monitor

2 Answers

SyncMaster 204B screen appears in 5 min after turning monitor on. First 7-10min screen is dark and slowly increases brightness. The picture becomes normal in 15-20 min and all is OK until the monitor is...


How long have you had the monitor. It sounds like a defective backlight. Usually when the circuit driver for the backlight starts to go bad, the monitor will blink. If this is the case, eventually the monitor will not turn on at all.

Jan 12, 2011 | Samsung SyncMaster 204B 20.1" LCD Monitor

1 Answer

Can i get a copy of the power supply diagram for samsung 204B syncmaster ,i replaced the capacitors that were inflated in the power supply and in the inverter but the backlight not turn on. i want to know...


jose54tony, Schematics would only be available from Samsung. Rarely do they let them out of there tight grip!! You may need to look at the smps board and inverter board to find bad transistors that may have also died (muerto) when the electrolytic filter capacitors failed. 12fixlouie

May 20, 2010 | Samsung SyncMaster 204B 20.1" LCD Monitor

1 Answer

Backlight going bad?


Hello,

This is not the backlight its the power supply board. We have a repair guide posted on our web site at: http://www.ccl-la.com/blog/index.php/samsung-204b-lcd-monitor-repair/ The repair consists of replacing 5 capacitors on the power supply board. If you can solder then you can do this repair. If you don't want to do the repair we do offer a repair service, you can get this information here: http://www.ccl-la.com/blog/index.php/service-request-form/

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

CCL_Tech
Corporate Computer
www.ccl-la.com

Apr 28, 2010 | Samsung SyncMaster 216BW Monitor

2 Answers

My SyncMaster 204B Monitor just stopped working. It worked fine this morning before I left for work, but when I arrived home, it wouldn't power up. I've been Duel Screening for about 2 yrs with no problems...


Replace the screen with a known working one. If it shows display then it is the screen which is broken, if not, then it could be the port on which it is connected.

Feb 25, 2010 | Samsung SyncMaster 204B 20.1" LCD Monitor

1 Answer

Monitor flickers and turns off. samsung syncmaster 204B.


this is very frecuent in all monitors or tv's lcd .... turn on 3 seconds and off the capacitors need to be replaced y sugest a technician

Sep 16, 2009 | Samsung SyncMaster 204B 20.1" LCD Monitor

2 Answers

Samsung monitor picture clicks off after 2-5 seconds...


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.

Buddy


Jul 24, 2009 | Samsung SyncMaster 204B (Silver, Black)...

2 Answers

Samsung, same exact problem - flickers on power up for a few min


This sounds like a power supply problem, how old is the monitor? If it is not new in the last year and is used regularly it sonds like a faulty capacitor in the power supply. If you are aware of the precautions necessary when handling capacitors and a moderatly competent solderer then you can replace then yourself - a complete set of capacitors usually costs around £3 or $5

Jun 27, 2009 | Samsung SyncMaster 204B 20.1" LCD Monitor

1 Answer

I had this monitor Samsung SyncMaster204b, before it took me 10 mins to show up the display, now it took me 30 mins or more then its like waiting forever still no display, what can i do to solve this...


Hello,

Your backlight power supply is about to die. We have a repair guide posted on our web site at:
www.ccl-la.com/badcaps.htm The guide has full dis-assembly guide and parts list. I hope this helps, If so please rate our solution.

Buddy
Corporate Computer
www.ccl-la.com
tech@ccl-la.com

Apr 16, 2009 | Samsung SyncMaster 204B 20.1" LCD Monitor

2 Answers

No Display on my Samsung 204B monitor


If you know how to open it up and get to the power supply you will find three capacitors 2-820uf and 1-330 @ 25vdc 105o.they will have puffed up tops replace them. FYI the monitor has a 3 year warranty.

Dec 12, 2008 | Samsung SyncMaster 204B 20.1" LCD Monitor

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