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Re: The screen keeps going blank
Hi there Guys,
It's seems all of you has a busted backlight inverter problems, Need to replaced a new inverter or repaired. You guys wanna saved $$$, try to repaired yourself. Then you will need to tested all the capacitors, find the busted caps and replaced it. Good lucks, Have a nice days!
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You may need to reset it. Just search google for "how to reset MODEL NUMBER monitor" and find your answer. Usually it consists of unplugging the monitor, holding a button or a combination of buttons, the plugging the monitor back in.
dpelrod727, Yes, the "switch-mode-power-supply" is in "partial" or "full" SHUTDOWN mode. Reconnect E172FP to a fully booted KNOWN good PC with the win-desktop as the displayed screen. Check with flashlight to see if your LCD panel is both BLACK and BLANK, or just BLACK by holding a bright flashlight 1" from screen at different angles even though the screen appears to be blank. If very faint image of desktop is seen then your SMPS is still half alive. Here are your options in either case. 1. Trade in for new. 2. Try Dell for a cash+old swapout for a Refurbed unit. 3. Check out www.ccl-la.com/badcaps, www.badcaps.net, www.lcdparts.net, and YOUTUBE long video clips dealing with LCD monitor disassembly and LCD repair. could be helpful in making decision on what to do. I'm 12fixlouie If this was helpful rate on fixya.
The high pitch sound is coming from the inverter. It is faulty and needs to be repaired or replaced. The inverter supplies high voltage to the CCFL lamp, this lamp gives the backlight to the LCD so you can see the LCD images.
Check out LCD parts for parts, service and DIY info. use this link :- www.lcdparts.net
My issue is similar.. however after trying a couple of times it will work. (yes everything is plugged in) It will function for a good 10 minutes before just powering off (blackout) screen. If you attempt to turn it on after it blacking out, the blue led for the power button will blink a couple of times and it will remain off. However if you wait 5-10 minutes and turn it back on, it will repeat itself...
I have it hooked up to a radeon X1650 graphics controller as a secondary digital controller, and its hooked up by VGA cable.
I also have two other displays besides this one (one primary and extended that dont have any issues whatsoever.. they continue to function while the syncmaster 193p takes its time snoozing.... please help.
usually this problem is caused by a faulty inverter circuit. transistors might been running too hot or a leaky capacitors also.not an easy task but try looking down for any defects on high voltage sections.