Question about ViewSonic VA1912wb 19" LCD Monitor
Hi i have two LCD monitors and they both went blank, no light LED at all.
Are these fixable, they worked fine for about one year +.
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Posted on Jan 02, 2017
An all too common problem with lcd's, you would think they would be more reliable after being on the market for years, alas they are not. See if it does the same thing on a friends PC if you are able; if so the you will know the lcd is faulty.
Posted on Nov 12, 2006
SOURCE: LCD Monitor has no video
Sounds your monitor has either blown a backlight or the inverter board is bad. Either way they can both be replaced, but tracking down the parts will be a bit difficult. But your LCD Monitor is in trouble! Sorry!
Posted on Nov 26, 2007
while the monitor is still powered on, but with the LED flashing, unplug the monitor from the PC. press the power button, and the monitor should go off, now plug the pc back into the monitor. Turn the monitor back on and it should work.
Occasionally this will not work for me, but if I repeat it it normally works
Hope this helps - my problem is intermitant so it may be different to what u guys have
Posted on May 06, 2008
kauffman014, As far as opening the monitor up you may want to visit YOUTUBE and search for lcd monitor repair/ disassembling monitor/ or something like that. I did see a 9-11 min video there that was fairly good on un-snapping the rear cover from the front bezel of what I think was a DELL unit. Also visit electronicrepairguide.com run by a jestine yong. don't pay any attention to his ad to purchase repair course in lcd/fpd servicing!! only look at the pic's of the insides of lcd monitors and the power supply boards/inverter boards. On gateway's, and dell monitors the pedestal must be unscrewed from the rear cover first. The pedestal is really screwed down to the steel FPD chassis that covers the circuit boards and provides a ridgid mounting surface for the unit as a whole. Work on a flat surface with screen facing down on a blanket or lots of newspaper to prevent maring of the FPD!
There should be some phillips screws that fasten the steel shield to the left/right sides of the FPD frame. Once you get down to looking at the Switch-Mode-Power-Supply (smps) board look for large filter capacitors (electrolytic polarized aluminum can) that have the tops of them bulging upward as compared to normal ones that are flat. You will also need to inspect the bottom (solder side) of the board where all the leads of the components from the top side are soldered. You are looking for very thin hairline 'thermal' and or 'vibration' circular FRACTURES around the leads of the larger and bulkier (heavy) components. Yeah...use a big magnifying glass or better yet a 10x or 20x inspection microscope. One last thing, I highly recomend taking digital pic's as you disassemble the unit so it can be put together again without leftover parts. hope this info helps you out. Get back to me if you find out anything. I'm louie12fix on fixya or lmistyrel@ aol.com BYE for now.
Posted on Mar 28, 2009
Tips for a great answer:
Basic LCD monitor and TV troubleshooting guide:
Failed TV and Monitors pictures: http://s807.photobucket.com/albums/yy352/budm/
Learn about bad caps: http://en.wikipedia.org/wiki/Capacitor_plague
Capacitors kit: http://lcdalternatives.auctivacommerce.com/ he can make you a set of caps for you.
Or www.digikey.com just make sure to use caps with low ESR, 105c, high ripple current, long life rating such as PANASONIC FM or FC series.
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I am using this great LCD for about an year. But few times in the past my LCD didnt show up the display though the Green light was still ON, turning off the LCD and opening it again always solved the problem. But now My LCD completely went blank. Turning off/on didnt work at all now. I've tried couple of other tweaks mentioned on this site but they didnt work. I am just seeing a blank screen with green light ON. and ya theres a very low hissing sound coming from the LCD.
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