Question about ViewSonic VG1930WM LCD Monitor

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Monitor will not display picture, but the power like blinks on and off. What is causing this? Bad caps?

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That will be the first suspect just like all the failed moniotrs as shown here:
Failed TV and Monitors: http://s807.photobucket.com/home/budm/allalbums
http://en.wikipedia.org/wiki/Capacitor_plague
Capacitors kit: http://lcdalternatives.auctivacommerce.com/ he can make you a set of caps for you.
Please post back what you find.

Posted on Sep 10, 2010

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2 Answers

HP L 17" Moniter display


You should check the VGA cable and also try this monitor with another PC first. This model is known for having bad caps and bad lamp assemblies as shown here:
http://s807.photobucket.com/albums/yy352/budm/HP/HP%20L1706/

Basic LCD monitor and TV troubleshooting guide:
http://www.fixya.com/support/r6150077-basic_lcd_monitors_troubleshooting
http://www.fixya.com/support/r5093881-lcd_flat_panel_tv_troubleshooting_guide
http://www.fixya.com/support/r7406380-tv_training_manuals
Failed TV and Monitors pictures: 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.

Sep 08, 2011 | HP L1706 17" LCD Monitor

2 Answers

I have a gateway FPD1975W monitor with a Gateway GT5482E computer. The monitor does not display the computer output - the blue power light blinks off and on steadily and every so often the monitor says...


From your description you have a power supply problem, usually caused by defective capacitors, sometimes they will bulge at the top indicating an open condition. If you decide to repair check the inverter board that powers the back lights behind the screen, because they are also prone to bad caps.

Feb 17, 2011 | Gateway FPD1975 19" LCD Monitor

1 Answer

No display - green power light blinking


Common problem for monitors are failed capacitors in the power supply, that will be the first place to look. See pictures of failed VIEWSONIC and other monitors due to bad caps and other causes:
http://s807.photobucket.com/home/budm/allalbums
Please post back what you find so we can guide you further and will also help other people with the same problem.

Apr 05, 2010 | ViewSonic VP920b 19" LCD Monitor

2 Answers

My Dell 1905FP LCD monitor Power light blink on startup


Hello,

This is a classic symptom of filter capacitor failure on the power supply board. The Dell 1905FP and 1907FP both use the same power supply and this type of failure is very common. You can repair the unit by replacing the filter capacitors on the power supply board. Here is a picture of the board with the problem capacitors circled and below is a link to a repair guide for this series monitor.


9_24_2012_8_40_16_pm.jpg

http://www.ccl-la.com/blog/index.php/repairing-a-dell-1905fp-1907fp-lcd-monitor/

I hope this helps,
BuddyMc

Nov 14, 2009 | Dell UltraSharp 1905FP 19" LCD Monitor

1 Answer

THE BLUE LIGHT ON MY MONITOR IS BLINKING BUT THE SCREEN IS BLACK ANYTHING I CAN DO


Hello,

The blinking power light is a sure sign of a power supply failure. The heat buildup in the case causes parts called capacitors to blow and short out the power supply making the power light blink. Go to our web site at:
www.ccl-la.com/badcaps.htm we have pictures of what blown capacitors look like. Now open up your monitor and ook at the power supply. Replace all of the caps that look like the pictures and you should have a working monitor again. The replacement caps will need to be high temp which is marked 105c. The values that you need to get will be marked on the sides of the bad caps you take out such as 220uf, 470uf or 1000uf plus a voltage rating. The caps can be ordered from several places on the internet or we can supply them for you. Do not use caps from Radio Shack they are not rated for this type of use and will blow out in a few weeks of use. When you replace the bad ones be sure to insert them with the polarity stripe on the side going the same direction as the old ones come out. If you have any questions just ask. If you don't want to do the repair yourself we do offer a repair service for $30 + return shipping.

I hope this helps, if so please rate our solution.

Buddy
Corporate Computer
www.ccl-la.com
tech@ccl-la.com

Oct 16, 2009 | Gateway FPD1975W 19" LCD Monitor

1 Answer

Monitor will not go on black screen, blue power button keeps flashing, tried pushing power button nothing happens, wont turn off


Hello,

The blinking power light is a sure sign of a power supply failure but you should be able to repair it if you can solder. The heat buildup in the case causes parts called capacitors to blow and short out the power supply making the power light blink. Go to our web site at:
www.ccl-la.com/badcaps.htm we have pictures of what blown capacitors look like. Now open up your monitor and ook at the power supply. Replace all of the caps that look like the pictures and you should have a working monitor again. The replacement caps will need to be high temp which is marked 105c. The values that you need to get will be marked on the sides of the bad caps you take out such as 220uf, 470uf or 1000uf plus a voltage rating. The caps can be ordered from several places on the internet or we can supply them for you. Do not use caps from Radio Shack they are not rated for this type of use and will blow out in a few weeks of use. When you replace the bad ones be sure to insert them with the polarity stripe on the side going the same direction as the old ones come out. If you have any questions just ask. If you don't want to do the repair yourself we do offer a repair service for $30 + return shipping.

I hope this helps, if so please rate our solution.

Buddy
Corporate Computer
www.ccl-la.com
tech@ccl-la.com

Oct 16, 2009 | Gateway FPD2275W LCD Monitor

1 Answer

My L70N monitor won't turn on it powers up so that the power button flashes but it won't do anything else


Hello,

The blinking power light is a sure sign of a power supply failure. The heat buildup in the case causes parts called capacitors to blow and short out the power supply making the power light blink. If you can solder then you should be able to do the repair yourself. Go to our web site at:
www.ccl-la.com/badcaps.htm we have pictures of what blown capacitors look like. Now open up your monitor and look at the power supply. Replace all of the caps that look like the pictures and you should have a working monitor again. The replacement caps will need to be high temp which is marked 105c. The values that you need to get will be marked on the sides of the bad caps you take out such as 220uf, 470uf or 1000uf plus a voltage rating. The caps can be ordered from several places on the internet or we can supply them for you. Do not use caps from Radio Shack they are not rated for this type of use and will blow out in a few weeks of use. When you replace the bad ones be sure to insert them with the polarity stripe on the side going the same direction as the old ones come out. If you have any questions just ask. If you don't want to do the repair yourself we do offer a repair service for $30 + return shipping.

I hope this helps, if so please rate our solution.

Buddy
Corporate Computer
www.ccl-la.com
tech@ccl-la.com

Oct 16, 2009 | Hyundai ImageQuest L70N 17" LCD Monitor

2 Answers

My Dell Monitor on/off switch blinks green all of the time.


You need to open the monitor and check to se eif any of the capacitors on the power board are bad. Common problem for LCD monitors. The bad caps usually vent at the top (they will look bad compaired to a good capacitor).

If they look bad then they will need to be replaced. I've seen this in Dell monitors, so there's a good chance this will fix the monitor.
Take it apart, get the values on the sides of the bad caps in the power supply pcb. Buy new caps, and de-solder the old ones and replace them with the new ones. Don't forget to trim the leads afterwords.

Jan 01, 2009 | Dell E172FP 17" LCD Flat Panel Monitor

2 Answers

Monitor light blinking


Some monitors blink 2 different collers and that means that their is no video signal and some monitors will blink real fast.This is caused by a power cap going bad.If this is happening you need to take appart the monitor and look for a power cap that has stuff leaking out of it or one that has a loose connection to the board or one that is bubeling on the top the power cap.The top of the power cap should be extremly flat.(here is the problem their could be a bad power cap and it might not be showing any signs of going bad).You will need to replace the cap.You can go to radio shack or fry's and they will usually have the parts for cheep.You will need to know the voltage and the pecofarrets.The voltage and the pecofarrets are usually listed on the cap.For example 350 voltage and Fu 4.5 (Fu standing for pecofarrets).You will need to remove the old power caps by applying heat with a soder gun to the under side of the board.Make sure you know which prong on the power cap is positive and which is negitive as the cap is polarity concious.(usually on the doard under the cap it will say + or -.The longest prong on the new cap will be positive).Once you have identified the bad cap or just replaced and removed them all you will need to use a soder gun and soder to atach the new power caps to the board.After sodering cut any acess langth of the prongs off and reasemble the monitor.Now hopfully the monitor works.

Oct 11, 2007 | LG Flatron 563LE 15.1" LCD Monitor

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