Question about Envision G22LWK 22" LCD Monitor
My Envision monitor screens turns gray once it is powered on. I have changed monitor to make sure its not the computer and I have also tried changing the contrast? Is there any way I can fix this problem?
When it have this kind of error is a problem of the powerboard.
Anyway you must open it and look at the all capacitors and if are them inflated, if them are inflated must change them.
But can be a problem with inverters... control the transistors - MOSFET on the powerboard.
Posted on Apr 04, 2014
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Posted on Jan 02, 2017
The problem was the resolution setup on the old crt monitor was not compatible with the new lcd monitor. I changed the resolution to one suggested/recommended by envision and the problem was solved.
Posted on Apr 24, 2008
Seems the N-Channel MOSFET switch in the power supply is the culprit. NTE does not list a replacement part for this, so a sub is necessary (any N-Channel 600V MOSFET in same TO220F case should suffice). I have to look one up for mine.
Posted on Mar 25, 2009
catamount309, This is only a guess, but unit may have internal "switch-mode-power-supply"/"CCFL inverter" board problem. When screen goes BLACK, is it also BLANK? If you can see WIN-desktop with aid of bright flashlight 1 inch from screen, then SMPS is in partial shutdown mode. If you see nothing, then SMPS is in full shutdown. In either case, Technician will need to repair the SMPS/CCFL inverter board. If KNOWN GOOD monitor works with PC, then you know 7100e is bad. Do you know and understand how the new energy efficient screw-in curlie-Q light bulbs work? If the "electronic ballast circuit" not working, then it can't light-up the CCFL tubes on the reverse side of LCD panel then you see black. Do more reading in my fixya profile for more options open to you. Do your research first!! Hey, reading is free!!!
Will you fix or trade for new? 12fixlouie
Posted on Mar 08, 2010
Testimonial: "very helpful, seems to be right on. quick response. thank you very much"
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