Re: No display, green light on ViewSonic VP201b 20.1 LCD
I have two broken VP201 monitors with different symptoms. One was black screen green light - like yours. The other was purple speks flying all over the screen., purple tint.
I swapped the power supplies and display boards, both monitors had original problems. I swap the inverters and the monitor which was black screen now appeared to work okay - but slightly pink and the monitor which was purple speks is now black screen.
I would therefore assume that both my inverters gone, one being on it's way out. You probably have the black-screen case.
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hramirez, Retevo. com says time to retire this old monitor. Its that or you will need to do some extensive reading here on fixya on how and what to look for inside the unit that could be causing your black screen condition!!! Then you will go to YOUTUBE and view some of the many video clips that deal with "lcd monitor repair" and lcd monitor disassembly". Have you noticed any bad, swollen top, elcetrolytic filter capacitors on the units "switch-mode-power-supply/CCFL inverter printed circuit board?? How about any "cold" frosty looking solder joints around the component leads of the power transistors and ferrite inverter transformers? May need to get large magnifying glass to find those pesky little cold solder joints. 12fixlouie
this might be the problem of backlight which is used to give away light for viewing of color watch carefully u might see the picture without color if it is though then change the backlight byy contacting ur nearest service center
it sounds as if you may have a backlight problem..i have two of them that the wire going to the backlight had burnt off at the bulb..I had to take the lcd screen apart to solder the wire back on the blub.. be carefull the lcd screen and bulb are frigile... ther is 4 lights two on the top and two on the bottom..good luck