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Re: Monitor went black completely dead
A simple way to check your AC Adapter, plugged into a socket and see if it lite green... If you don't see a green light lite on the AC Adapter, then it's DEAD... You can order the AC Adapter @ www.3rd-rocks.com but sometime you need to replaced both. Have a nice day!
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Go check the backlight inverter lamp, replace if busted. This can be found when you open the back of your lcd and manage to get access to it. The backlight inverter lamp is located at the upper and lower part of the screen. Go check also the inverter board, the one that suppply high voltage to inverter lamp, see if this ballast transformer are not burnt out. The
input voltage of the inverter board is 24vdc the output is 250v ac..The
voltage input terminal of the inverter board usually creates a loose
solder. Use a soldering iron to resolder them....
This lamps are
available online to order at shoppejimmy.com
There are three possible cause why your monitor went black and start working..
1. If your monitor is dead set.. no reaction or lights turn on after power on.. then it needs to check if there is blown capacitor in its power supply section..
2. The high voltage ballast transformer of the backlight inverter is burned - it needs to be replaced so that it will not have a direct effect on the power supply section of the monitor.
3. The backlight inverters are all busted - the backlight was located at the upper and lower back edge of the monitor.. If these lights are busted then all that will be seen in your monitor is black screen.. It will need to be replaced so that image display will come out from your screen..
These 3 reason and its solutions can only be done by yourself if you have the knowledge, proper skills and the right tools to open the back cover of the monitor and replace the problem parts....
Otherwise, bring your monitor to a credible technician and if there is warranty,, avail of this...
pdshapiro, Learn flashlight test in my fixya profile to determine current state of shutdown of units "switch-mode-power-supply"... Then do more reading and visit some of the web links mentioned in my many responses to other owners of Black or Blank n Black screen monitors. You will find out all you need to know and all options if you read my older (late 09 posts) responses to other owners of same or similar sympton ccfl back-lit lcd monitors. JUST DO SOME READING FIRST. Then come back to this post and give it a rating if it steered you in the right direction. Bye for now. 12fixlouie
diva_5, You will need to use warranty first. If warranty not option, You or qualified electronics technician will need to repair the "switch-mode-power-supply"/"CCFL inverter supply" so that the CCFL tubes will stay lighted for another 2000 hours. That's my best guess. Do some reading in my and other fixya lcd monitor tech's profiles for lots more info on this very common CCFL back-lit lcd monitor problem. If reading and DIY repair isn't your thing, then skip it and trade-in unit for new. DIY repair can sometimes cost less than $10 if you have tools and know how to solder. Contracting out the work will cost upwards of $40-$70. Read before you do anything about your "black" or "blank n black" screen monitor!!! Good kuck with repair. 12fixlouie
jcleary916, You or qualified electronics technician will need to find out why "cold-cathode-fluorescent-lamps" fail to sustain output of white light that enables you to see what is on the LCD panel. CCFL inverter supply probably needs work on it. Do some reading in my and other fixya lcd monitor tech'e profiles. You will be amazed that so many other owners of ALL brands of CCFL back-lit monitors have YOUR exact same symptom as your's does. And then think about all the other owners who don't find their way to fixya for an answer!!! Keep in touch by doing another comment to this one after you do some reading. Then let me know what you are willing to do about your BLACK or BLANK n BLACK CCFL back-lit LCD monitor and how old it is!!! 12fixlouie
ainamat, Did you do the FLASHLIGHT TEST to evaluate the status of the "switch-mode-power-supply"??? Every owner of a lcd display with "cold-cathode-fluorescent-lamps" backlighting should know how to perform AND interpret the results!!!! It's a very easy test to do! FYI Your monitor has a backlighting sysem very similar to the NEW curlie-Q CFL energy-saving screw-in light bulbs!! They have an ELECTRONIC BALLAST (converter) circuit (ac to ac) to light them. Monitors have a INVERTER circuit (dc to ac) ballast circuit that generates 600-1100vac to light your CCFL's. If the SMPS detects a FAULT with itself or a circuit that it is supplying power to, It will go into SHUTDOWN mode to try and save the unit from a catastrophic, nonrecoverable failure. e.g. worst case sparks,smoke,fire!! Anna, you should READ and follow the threads in my other responses if you can get to my FIXYA profile pages under 12fixlouie, aka louie12fix and read what I have already written about the BLACK SCREEN of DEATH and YOUR options. If after doing some surfing of the net, you determine that this response has steered you to a solution to your BSOD problem, please rate this response on fixya. Good luck in your quest. 12fixlouie
if the monitor green led is blinking continuosly
the follow the steps
remove the cable of the monitor which is connected to the CPU and watch the monitor it should show a message ( no input signal or cable disconnected, that means your monitor is OK the problem is with your CPU . try this and let me know