20 Most Recent ViewSonic VP930b 19" LCD Monitor Questions & Answers


Yes this is a very common problem on the VP930b. The fault is with the crappy CapXon capacitors (worst in the industry). As mentioned above, replace the 220uF@25V and 1000uF@16V capacitors. The other two never go bad. Make sure you replace the four above even if they look good. I would recommend using 35V and 25V respectively.

Note, if your monitor serial number starts with Q8H you may have a bad IC on the main board. Q8 often goes bad a few months after the capacitors do. If they are warranty they will have to be sent to Viewsonic or a local authorized service center.
If not warranty, you can solder a wire from the 3 pins on the left side of the IC to the four pins on the right side. One pin on the left side is the on/off pin for this IC and should be left alone. This will bypass the IC allowing +5V to the LCD all the time. However, if the monitor ever shows scrambled graphics after turning it on then turn it off using the main power switch in the back and turn it back on, it should be fine.

ViewSonic VP930b... | Answered on Aug 31, 2014


check video cable

ViewSonic VP930b... | Answered on Apr 17, 2013


A red/pink streaks or tint is a indication that the CCFL lamp about to fail. The CCFL lamp is a mini fluro tube. The wires on existing CCFL lamp requires unsoldering and the new CCFL lamp soldered back on to these wires.
Replacement CCFL lamps for your model monitor are available from this WEB site.
www.lcdparts.net

ViewSonic VP930b... | Answered on Jul 11, 2011


You can still have bad backlights lamps, that is why the transformer is squealing due to poor connection on the wire at the lamp connection, the output of the inverter voltage will try to go up to keep the lamp firing and draws too much current and cause the inverter circuits to shutdown. The inverter has two detection circuits: over current and open lamp sensing (it will sense if the lamp will fire up and stay on).
Look for burnt/harden wires on the lamp assemblies.
http://s807.photobucket.com/albums/yy352/budm/Bad%20backlight%20lamp/

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.

ViewSonic VP930b... | Answered on Apr 03, 2011


Go to the setup menu on the LCD panel by pressing button 1 on the front. See if there is an option to reset the lcd to factory settings. Reset it and report if it helps not.

ViewSonic VP930b... | Answered on Mar 20, 2011


If your ViewSonic LCD monitor has stopped working with a blinking green power button, It typically means that there is one or more failed capacitors in the monitor. It would be best to send the monitor in to Viewsonic for service or to purchase a new monitor.

ViewSonic VP930b... | Answered on Mar 12, 2011


Sound slike it is getting no video from your graphics card. Check the graphics card in device manager, and check the card is seated properly, the connections are good and that the drivers for your graphics card are there.

ViewSonic VP930b... | Answered on Jul 16, 2010


This can be fixed by changing the settings from the MENU.In menu there will be a option known as picture clarity.there will be option like increase the resolution.

ViewSonic VP930b... | Answered on Jul 09, 2010


Most common failures in the LCD monitors are bad capacitors (bulging top/seal or leaking) in the power supply, blown fuses, poor solder joints, 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 VIEWSONIC 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

ViewSonic VP930b... | Answered on Jun 17, 2010


i m sure its somthing wrong with ur monitor cable(wire) try to claim warranty or giv to a monitor repair center to fix a new cable

ViewSonic VP930b... | Answered on May 13, 2010


I will assume that you have already tried it on another PC, just want to narrow down the problem before taking the monitor apart.
Most common failure in the LCD monitors are bad capacitors (bulging top/seal or leaking) in the power supply, 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 VIEWSONIC and other monitors to get some ideas what goes wrong: 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://www.badcaps.net
http://en.wikipedia.org/wiki/Capacitor_plague

ViewSonic VP930b... | Answered on Apr 06, 2010


Hello,

Blinking power lights usually indicate a failure in the power supply. What is happening is the power supply tries to start up and then shorts and turns off then it repeats. The most likely cause of the power supply failure is blown capacitors. We have an article posted on our web site at: http://www.ccl-la.com/blog/index.php/capacitors/ that explains what capacitors are and what to look for when repairing your monitor. If you don't want to do the repair yourself we do offer a repair service, more information about this service can be found here: http://www.ccl-la.com/blog/index.php/service-request-form/

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

Buddy
Corporate Computer
www.ccl-la.com

ViewSonic VP930b... | Answered on Mar 22, 2010


Hello,

This is a very common problem with LCD monitors after a few years of use and if you can solder you should be able to repair the monitor yourself. The problem is caused by blown capacitors on the power board. Go to our web site at : www.ccl-la.com/badcaps.htm We have pictures of what to look for. Open your monitor and look at the power supply board for any blown capacitors, replace all that you find. The replacement parts can be ordered from several places on the internet or we can supply them for you. The replacement parts will need to be high temp and will be marked 105c. The values you need to get will be marked on the sides of the ones you take out but will be something like 220uf, 470uf, or 1000uf etc. and then a voltage rating. When you install the new ones be sure to insert them with the polarity stripe going the same direction as the old ones come out. If you don't want to do the repair yourself we do offer a repair service for $35 plus return shipping. If you have any questions just let us know

I hope this helps if so please rate our solution.

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

ViewSonic VP930b... | Answered on Oct 24, 2009

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