I have a 17" LCD and it does not have a display even when the light is green. When I shine a light directly onto the screen, I am able to view it very faintly. I read on the forums here that the possible problem may be the inverter board (sorry if misspelled). Could it be? And if so how easily are those changed? Does anyone know a monitor repair company in Chicago?
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Re: 17" Acer LCD does not display.
It?s not terribly difficult but you do need some experience handling and working on electronics, tools, a good mechanical aptitude, attention to detail and the willingness to risk doing more harm than good if you make a mistake. The other thing to realize is that you are going to have to invest a couple hours of your time researching, purchasing and installing the components. So if you are willing to spend a couple of hours to save about $100 then it?s worth it.
As far as a contractor in Chicago you might try searching this site, but if that fails just look in the phone book for computer repair. I suspect the hard part will be figuring out which one to go to.
Let us know how it turns out and if you find a good repair shop you might pass this site on to them so that they can register their services here.
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You say black display. Not sure what you mean. Either the monitor is working or it is not. If you see nothing on the monitor and the power light is yellow, then it is not getting a signal. If the power light is green and you see nothing, look really closely. You might even shine a flashlight at the monitor to see if there is actually a dim display. If so, the backlight has gone out and needs to be replaced. I'm assuming that you have tried to brighten the display with the monitor controls.
From what you say there is probably not much you can do with it, the parts inside are SMD, to small to work on. If you could still see txt on the screen when you shine your torch, it could be fixed by replacing the back lighting PCB.
IF there is no display even with a flashlight, the P/S board is malfunctioning. Bad capacitors or LCD driver board circuit. Mine did this and it was bad caps, 4 of 8 were bad and a burned out chip on the P/S board.
I picked up a FPD1730 monitor for free which was just sitting out in my apartment hallway. I suspected something was wrong and sure e**ugh there was ** backlight, but I could see faint video when I shined a flashlight on it.
A quick Google search of the inverter model # led me to a German forum which suggested replacing the fuse labeled "F1" on the inverter board. I don't have a matching fuse on hand but I bridged the connection with a wire and sure e**ugh the backlight came back on. Short-circuiting like this is definitely **t 100% safe but if you can find a 4A fuse then it's a really cheap and quick fix.
It's a very common problem.
LCD's use four small Cold Compact Fluorescent bulbs to back light the display. (thats what gives the LCD it's brightness allowing you to see it)
The inverter board runs these lights and when they go bad they will typically show symptoms like you have or the monitor power light comes on and you have either no display or a very dim display.
If you ever have one that has no display but the power light is on you can check by shining a flashlight directly into the LCD from the front (right into the screen) if you can see an image then it's either the inverter board (most likely) or the CCFL bulbs have gone bad.
The inverter board and CCFL's are replaceable.
you need to replace switching transistor 2SC5707 in the Power Inverter Board.
This parts is used to fix Some dell and hp lcd monitor.
DELL E172FPb, E173FPb. HP Pavilion F1703, Pavilion F1503.
If you can't get this item to work let me know, I can help
I have fixed a lot of these monitor with no problem.