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Picture appears for 2 seconds and goes black

I have a dozen of these 1725L monitors in use. I have had power supply and inverter problems that I have fixed with new caps or boards. I have 3 now that come on just fine but go off in a few seconds. I can not see lcd picture with a flashlight either. I replaced the invertor the power supply and the main control board with known working boards and all still have the same issue.

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  • Elo Master
  • 3,320 Answers

If your LCD TV or monitor has stopped working, or is displaying one of the following symptoms, then it's a candidate for some new capacitors
- Flickering screen
- Screen image disappears after several seconds
- Dim screen
- Slow start
- Power LED on, but no picture
- Unusual colors and/or lines
The primary cause of LCD TV and monitor failure is caused by faulty capacitors. You can examine the capacitors in your LCD TV or monitor and actually see if they are bad.
If they appear bulged on top, then they need to be replaced.
New capacitors will solve a host of problems in LCD monitors and TV's and will extend the life of your monitor or TV by several years.
Check the cables, connectors and connections.
Take it to a repair shop.

Posted on Apr 23, 2014

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Posted on Jan 02, 2017

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SOURCE: Replacing Inverter Board

I did some poking around and only found a few places that sold inverter boards for this monitor. Ebay has one that sells for about $80: http://cgi.ebay.com/Backlight-Inverter-for-Gateway-FPD1930-LCD-Monitor_W0QQitemZ160070918225QQcategoryZ174QQrdZ1QQssPageNameZWINQ3aPOST0Q3aRECOQ3aBINQQcmdZViewItem I wasn't able to find any specific instructions posted, however, taking a typical LCD panel apart and replacing the board shouldn't be too difficult. The only hard part is not getting shocked, which is why this is not a job for the typical user. Anyway to disassemble the typical LCD you remove the pedestal from the back of the LCD then remove the screws around the back of the LCD, remove the back and look for the inverter board. Typically it is covered with a metal shield; again the hard part is knowing how to correctly handle the parts. Considering you can buy a new 17" LCD for $120 to $150 (and has a 1 year warranty) you might want to consider investing in a new monitor instead. If you have any other questions let us know, otherwise please don?t forget to rate this posting.

Posted on Feb 06, 2007

SOURCE: ccfl inverter board

where can I buy a new transformer

Posted on Jun 08, 2008

  • 1 Answer

SOURCE: BenQ FP51g LCD monitor

Dear Friend:
There is a Switch transistor to power on -off the hi voltaje for lights. Check 15V from power source go to this transistor colector, Using soldering Iron, make a juntion between colector and emiter, to short 15V to Hi voltaje power. I´m fixing 10 monitor the same trouble. I will remove a liter transistor.
Late I will post here the driver transistor number, and the replace number transistor I will use.
Pictures , etc. Best Regard

Posted on Oct 25, 2008

  • 152 Answers

SOURCE: lcd monitor will turn on for about 2 seconds then go blank.

butterx99, First thing you should do is surf the net for pics of swollen electrolytic filter capacitors. You will find many, many examples. You will also need to inspect both the switch-mode-power-supply and the inverter boards for failed thermally cracked (fractured) solder joints. I will try to attach a pic of what you would be looking for. You hav failed to mention how many printed circuit boards are in your monitor. Some have only 2, others have 3. If only 2, then the "inverter circuit is part of the SMPS board. Did you take pics so that you can remember where everything goes when you need to reassemble? Let me know by email if you don't get a the pic through fixya. Bye for now. I'm louie12fix on fixya or lmistyrel@aim.com
aa9bf5e.jpg

Posted on May 14, 2009

  • 38 Answers

SOURCE: HP 1940 goes blank After 3 Seconds. after turning on

Run a monitor aelf test.... Remove the monitor cable from the back of the tower... and see if it run self test.... also a install the driver for the monitor

Posted on Aug 03, 2009

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Hi there, My problem is the same as many other people. I have this ViewSonic VX2255W MB-2. When I turn the screen on, it goes black after 1 second. I read on few answers to check for bulgy capacitors. The...


OK, on the left side of the LARGE HEATSINK, you can see 5 Electrolytic caps for the DC secondary side power supplies.
You need to load the power supply for the inverter circuits with TWO 12v car bulbs in series (equal to 24v) to see if the inverter power supply can handle the load (make sure NOT to turn on the front panel power switch, that way the inverter circuits will not be activated, the power supply will stay on the minute the power cord is plugged into the outlet, it will be running 24/7 even when the monitor power switch is in the OFF mode. If the power supply check out OK, then you may have bad lamp assemblies, you will need lamp tester or inverter tester (I use spare lamp assemblies from broken LCD panel) to isolate the problem.

Failed TV and Monitors: http://s807.photobucket.com/albums/yy352/budm

Feb 11, 2011 | ViewSonic VX2255 Monitor

2 Answers

When switched on screen is live for about 1 second then goes black


My flat screen monitor does not light up. Could it be a burned bulb>

Oct 18, 2010 | Acer V193w LCD Monitor

1 Answer

No picture


Power supply section will be the first place to check, find out if you do hav 12~18vdc feeding the inverter circuits.
Most common failures in the LCD monitors are bad capacitors (bulging top/seal or leaking) in the power supply, blown fuses, failed inverter circuits (blown fuse, shorted transistors, shorted/open transformers), bad lamps (poor solder connections or worn out lamps). You will need to open it up and inspect the inside, see example of failed monitors to get some ideas what to look for: http://s807.photobucket.com/home/budm/allalbums
Post back what you see inside so we can guide you further and it will help out other people in the future also.
http://en.wikipedia.org/wiki/Capacitor_plague
http://www.badcaps.net

May 31, 2010 | Planar PL1910M (Black) 19 in. Flat Panel...

1 Answer

The montier turns on then turns right off


Hi!
When a monitor display image for a second and then goes to black screen... there are possible reasons why this problem occur..

1. You need to check if the high voltage ballast transformer of your backlight inverter is about to be burned... the transformer is overheating..that's why you experience the monitor working for a couple of seconds and then it will shut off until the transformer cool down again and then it will be ready to work again...

2. Check also the backlight inverter if it is busted...the backlight inverter is the light source responsible for the image display you seen on your screen. If this are busted then all that you will be seeing is black screen

3. You need to check the power supply section for possible loose connections and possible blown and bad capacitors..

the ballast transformer has direct effect on power supply section.. when there is overheating transformer,,, the supply current from the power supply section becomes unstable.. and will not be able to supply the remaining good working ballast transformer.

In case you do not know, the ballast transformer generates high voltage for the backlight inverter to work....

Please be advise that if you don't have the knowledge, the proper skills and the right tools to open the back cover of your monitor and replace its part...don't risk it...

Otherwise, bring your unit to a credible technician and avail of warranty if there is any.....


Much appreciated if you rate this help...thanks...

May 25, 2010 | HP f2105 21" LCD Monitor

2 Answers

My dell monitor turns on for 2 seconds then goes black and the green light blinks orange


I assume that you already try this monitor on another PC to verify that the problem is in the monitor, in this case you need to open it up and inspect the fuse, transitors, solder connections on the power/inverter board, see failed Dell monitors here for guide: http://s807.photobucket.com/home/budm/allalbums
Post back what you see inside so we can guide you further.

Mar 23, 2010 | Dell E173FP 17" LCD Monitor

1 Answer

Xerox XG-19D LCD monitor goes black in 5 seconds


You may also have to check the IC/Transistors Inverter transfomer drivers, also should Ohm out the resistance of the transformers.

Mar 18, 2010 | Xerox XG-91D 19" LCD Monitor

1 Answer

I turn it on and it comes on for a second then the goes black


You need to open it up and inspect the capacitors (look for bulging top/seal), burnt inverter transformers, resistors, etc. in the power supply/Inverter board first, post back what you find so we can guide you further. See example of failed Viewsonic monitors: http://s807.photobucket.com/home/budm/allalbums

Mar 16, 2010 | ViewSonic VX910 19" LCD Monitor

1 Answer

When I turn on my monitor it flashes on for a second then the screen goes black, why is it doing this?


its the problem of back light supporting inverter board.if its a LCD monitor then only its inverter board problem.but if its a normal monitor not lcd one then its the problem of power supply board.
you can get the inverter as well as power supply board at www.radioshack.com
or at local computer part store in your area.
the cost of power supply board is near to $65 and cost of inverter board is $35.
thanks.

Nov 11, 2009 | Westinghouse Computers & Internet

2 Answers

Samsung monitor picture clicks off after 2-5 seconds...


Yes, It sounds like the backlight inverter circuit is shutting down. No inverter power, no backlight. On some monitors the inverter circuit will shot circuit the power power supply which makes the power light flash on some it just kills the backlight. You can usually check with a flashlight. Hold the flashlight pointed at the screen and see if you can see any of the icons or background picture. If you can then it is the backlight circuit or backlight tubes, usually the circuit.

Buddy


Jul 24, 2009 | Samsung SyncMaster 204B (Silver, Black)...

2 Answers

RE:monitor goes black


Monitor going black after a few seconds can be causd by a faulty power supply or inverter. Some monitors have both as one unit.
Sometimes it is basic failed capacitors, After that then I would look at transistors.
The average monitor from 17 to 20 and sometimes the 22s have usually 4 bulbs in them. One bad bulb will also cause the inverter to not fire up.
Bad bulbs usually show pinkish tint, or flickering or are dark at center top or bottom of the display.
ebays bammbammfran

Sep 21, 2007 | Acer AL2017 20" LCD Monitor

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