Question about Dell UltraSharp 1901FP 19" Flat Panel LCD Monitor
...they come on for only a few seconds, then go dark with the indicator light still green. Restarting them causes this to repeat. One actually stayed on for 6 hours before it went dark, then it would only come on for about 15 seconds. (Some dark flickering of the screen was seen just before it went out). I have disassembled one of these monitors and inspected the inverter board for bad caps and bad solder connections without finding any. I am capable of making component level repairs (I was a TV service technician for 20 years) but I no longer have the test equipment needed to do troubleshooting. I'm assuming that since all 3 have the same problem, and it's also been mentioned here several times, that someone would have an idea what the likely defect would be. If that's not possible, then I need to know where I can find 3 replacement boards. PIctures of the inverter board: http://img4.imageshack.us/img4/6665/dscf1317fa.jpg http://img593.imageshack.us/img593/3912/dscf1318ev.jpg
Since you are a TV repair tech, you would know the problem of the monitors. You didn't mention anything about you computer or what you are connecting them to.
I am assuming you are having problem connecting to the desktop tower. If so try with a friend's laptop. The laptop should have a VGA port to connect to external monitor. Find out how your monitors react on the laptop. As a tech you should be able to narrow down the problem.
I have this problem with my computer. It was not the monitor problem. It was the VGA card problem on my desktop. I changed the VGA card (15$) and everything works normal again.
Don't leave out the VGA cable also.
I have my monitor (CRT) for 7+ years and still in good condition.
Good luck with yours.
Posted on Dec 07, 2014
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Posted on Jan 02, 2017
E173FPf Mfg December 2004
This E173FPF has changed much inside from the November 2003 E172fpb which had the famous 4 identical transistors 5707 that would tend to fail in pairs. If your newer E173FPF displays a green power light and fails to display a picture try replacing the 220uf25v capacitors at C6 and C26. Test them with a volt ohm meter and they will test Ok, replace them anyway. Radio Shack did not have the 25v so I used the 35v, display works fine now. There is an E173FPF repair kit with directions available on Ebay if you don't have a parts store in your area and would prefer delivery.
i'm not an expert at anything...x'cept maybe dumpster diving. God Bless
Posted on Jan 06, 2009
I would like to agree to the diagnosis that you have done on the monitor . Thanks for a well complied solution. You can try the following website
dell generally sources the monitors from NEC,Hitachi or LG.
Posted on Mar 23, 2009
You can get repair instructions for the Dell E172/E151FP at ezinearticles.com and order transistors at AnBparts on ebay.
Posted on Sep 05, 2009
You could have a faulty inverter board. The inverter supplies high voltage to the CCFL lamp/s, these lamps are mini fluro tubes approx 1,5mm dia. and the length of the screen.
Check the inverter output and you maybe able to get parts from
or from DELL
Posted on Dec 13, 2009
Testimonial: "Thank you, I can't imagine what it would take to get a replacement part from DELL , but I will check on third party sources like the one you mentione"
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Basic LCD monitor and TV troubleshooting guide:
Failed TV and Monitors: 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.
Please leave rating if it helps.
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