Question about Xerox XG-91D 19" LCD Monitor
Hello, recently my Xerox 19-inch LCD Monitor screen just went black. When I power it up the blue power light will be solid for approx. 5 secs and the screen will light up greyish-black, then the screen loses all light and the power LED flashes. I think it's a communication problem or something? I'm trying to remove the rear case to check the inside, but I actually can't figure out how to remove the case! I removed the base and took out two screws from the back of the unit, but don't know where to go from here. I notice 4 female screw ends into the rear center of the monitor, but I'm not sure if they're a part of the removal or not. Thanks for any help you can give me! Problem not resolved
Hey rg213 I had a similar problem with my screen over the past week. This is "solution" is annoying but has been 100% effective every time I wish to use the monitor.
After your computer has started to boot and the Xerox logo flashes continually, reach around to the back of the monitor where your power supply plugs in. Slowly, and carefully start to pull out the power cord from the monitor until the screen lights up a bright white. Let it sit there for approximately 4 seconds then completely unplug, and replug the power cord back into the screen.
I should note that when you're pulling out the plug from the back of the monitor the screen will not light up until the plug is about 3/4 of the way out of it's socket. You should also be very quick when plugging the cord back into the monitor. If you wait anymore than 5 seconds (In my experience) the monitor won't power on.
This leads me to believe that it's actually our power supplies that are going bad and that maybe by buying new ones it will completely resolve our issue. Alas, a new power supply is not in a college students budget. I hope my unorthodox solution works for you :)
Posted on Aug 26, 2009
I concur replacing the bulging 470uf's and 220uf's on the psu pcb does the trick, when your xa7-19i 's blue power led flashes intermittantly on powerup, you can imagine can't u the psu feedback circuit going u good? no! ok! u good? no! ok! etc
The caps in the output of a smpsu have to have a high ERS rating or something ie they are dealing with pulses of power and it wears them out :-) They get hot and sweat......
Posted on Jul 02, 2009
Yes the problem is in the capacitors, you need to replace all the 470uF, 220uF and the 100uF capacitors, unless you have a cap testers then test each and find the bad ones, 25v or 35v are fine.
Posted on Jun 22, 2009
What do you do after you open it up? anything to look for? how can the problem be fixed after opening up the monitor?
Posted on Jan 13, 2007
Just tore mine apart so here is some help. You need to remove the two screws on the back of the case on the bottom. Then you remove the front cover it slides toward the top of the screen then lifts off. You can pry it off if that doesn't work. If you want to seperate the screen from the back cover you then need to remove the swivel mount and the other two screws from the back cover.
Posted on Jan 04, 2007
SOURCE: Screen goes blank also.
The thing with removing the power from the back of the monitor and holding the Down Button down whilst plugging back in the power does work. My 19inch Monitor was having the same sort of problem. White lines would appear as I turned on the monitor. I did the hard reset on the monitor and it works! I was awed and amazed.
Posted on Nov 26, 2007
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