Question about Samsung SyncMaster 204B 20.1" LCD Monitor
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Posted on Jan 02, 2017
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
SOURCE: Backlight going bad?
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.
Posted on Apr 28, 2010
Testimonial: "I know this has been quite some time ago, lol. I did since replace the capacitors and still had an issue. There was another component that went bad (can't remember what) which was too expensive to replace given the price reductions on newer bigger monitors. Thanks for your help!"
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
Posted on May 20, 2010
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