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My viewsonic VP930b-3 LCD monitor went too dark
Based on the specs it looks like this monitor is a CFL type and not a LED type. That means it uses a inverter to power the CFL tubes in the LCD. Usually these go bad after awhile.. usually the capacitors on the board run dry or go bad and need to be replaced. If your not good with soldering you might be able to find a board to replace it with.. more then likely given the monitor size "small" the inverter board is usually built-in on to the power supply board or mainboard and will need to be replaced together but some times comes seperate as it's own board. You might just consider replacing the monitor, LED monitors are pretty cheap now a days and more energy efficient.. and should last longer then most CFL type monitors because they don't use as much current and don't produce as much heat and LEDs tend to last longer with out the yellowing effect of CFLs. However it really comes down to build quality & component quality. While the most likely cause is a bad inverter other things can cause this too..like a bad mainboard sending voltage signal lower then normal to the inverter board.
on Nov 06, 2013
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