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Question about Dell UltraSharp 1704FPT 17" Flat Panel LCD Monitor

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Dell 1703ft (17" UltraSharp LCD) powers on, but no picture

I have a Dell 1703ft 17" UltraSharp LCD with an *intermittant* problem. The monitor appears to be getting power, and the light on the power button correctly displays orange or green when it should. However, when it's turned on (to a computer with a video signal), or when it's woken from sleep (as in turning on the computer), the screen displays neither the video it should, nor any test pattern. Changing inputs also doesn't produce any text on the screen, or any test pattern. Rather, the screen flashes once very briefly, then goes completely black as if it's not on at all. I can't get any OSD to appear, or any other messages. This LCD has been plugged into several different computers, and repeated the same problem. It always flashes once, and then nothing. The same computers have been tested with other monitors, and work fine. The VGA and power cables have been swapped for different cables, and the same result occurs. The problem is most definitely in the LCD itself... I'm comfortable with all areas of repairing computers and other electronics, (including using DMMs and soldering), but I can't find a repair manual for this LCD, or any other troubleshooting guide that goes past determining whether the problem is in the monitor or elsewhere. The problem is in the monitor. Where do I go from here? Is this a common problem for which I can check just a couple of internal components, like a fuse or a capacitor? Also, I suspect that the problem shows up when the monitor goes into a sleep mode. It'll work for days on end without fail, then I'll come home one night and it's asleep and has this problem. Leaving it disconnected from everything for a while has allowed it to work again when reconnected, but I have no idea how long it has to be disconnected, or if I might just need to ground it or discharge something. Any suggestions would be greatly appreciated. Thanks in advance! :)

Posted by Raechel Smith on

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Anonymous

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Hi
I have dell E172FPb model LCD monitor , the first problem was it blink yellow led and the screen was blank . I open the monitor and i got the two transistors c5707 was shorted , then after i changed the failed component it worked good for a month and so , but after one month the same components have failed again , I tried to find the other components that might cause the failure of the transistors on the inverter board but i didn't get any, then I changed the failed transistors .now the new problem is the power button is blinks green but no image on the screen
is there any help
Abebe

Posted on Feb 15, 2008

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This is most probably cause by one or more Faulty Electrolytic Capacitors, I find these are the MOST commonest form of "Fault" in these LCD's TFT's units. I ususally simply replace "On Spec" all High Value Electros, in fact ALL Electro's are suspect and often I just "Shotgun" and replace 'em all. Usually fixes all problems. Always use High Temperature Caps. Try this and see if it helps. All too often it is these Electro's.. GL.

Posted on Jul 24, 2007

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I suggets you try your Monitor with another pc and see if its behaving the same if the same then the monitor is bad
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Old monitor not recognized by new computer, stuck in power save. I just bought a low-end machine from Ibuypower for my parents, to be used primarily for the internet, word processing, and work purposes,nothing complicated. But their old Dell UltraSharp 17'' monitor will not display anything. It's in its powersave mode while the computer boots up, but does not seem to begetting any kind of signal otherwise. I've used both the VGA and DVI hookups, neither have produced any change or response. The monitor was working just fine yesterday with the old Dell PC; there is no other monitor or PC available for me to test the monitor or new Ibuypower system with; I am writing this from a crappy ancient laptop I found in storage, circa 1998ish. I have also switched the monitor between digital and analog mode several times, but it remains in powersave. Wiggling the mouse or hitting any key like it says to bring it out of power save has not worked, although I know the keyboard and mouse are working because even blindly I have been able to click on and open things on the desktop of the new computer. I have respectable computer knowledge so you don't need to dumb-down responses for me too much - yes, the power's on and it's plugged in and all the usual stuff. I'm just perplexed because I've never had a problem with a monitor before, certainly not as silly as ''plugged it in and it doesn't work''.

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