Question about ViewSonic VP930b 19" LCD Monitor

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I would like to download the users manual for the vp930b.

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Go to folowing link you will find manual in PDF formate

Posted on May 12, 2010


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Hi My VP930b has ared tint on DVI and on D-sub 1 and 2 tried an other computer,cables,reset ect.

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.

Jul 11, 2011 | ViewSonic VP930b 19" LCD Monitor

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My monitor dont come on, and green light flashng, viewsonic vp930b.

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.

Mar 11, 2011 | ViewSonic VP930b 19" LCD Monitor

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I have a VP930b. Nothing on the screen. Power light blinks. Any ideas...


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: 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:

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

Corporate Computer

Mar 09, 2010 | ViewSonic VP930b 19" LCD Monitor

2 Answers

Viewsonic VP930b color problem - Red tint

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.

Jul 29, 2009 | ViewSonic VP930b 19" LCD Monitor

1 Answer

My VP930B monitor screen is so distorted that you can barely see what is there. Once in a great while the picture will suddenly be perfect! The monitor and tower both have a DVI-i dual connectors , but my...

Could be. You can try using the VGA port just for a test. Connect it to a friends computer or a laptop. also, there is the following solution for unusual problems on the VP930B:

It is caused by bad capacitors in the power supply circuit.

Open the monitor, and look at the power board. There are six capacitors. Replace the 220uF @ 25V and the 1000uF @ 16V capacitors. I would recommend replacing them with 35V and 25V capacitors respectively.

If the serial number on your monitor starts with Q8H you could also have a bad IC on the main board. Q8 on the main board is an FET in an IC package. If this problem persists solder a wire from the right side to the left side. There is one pin that turns the IC on and off. All the other pins (per side) are soldered together. Do not solder the pin on the left side that is by itself. Just leave it. Solder ALL the other pins on the left to ALL the other pins on the right.

Remember, do this ONLY if the problem persists after replacing the capacitors AND if your serial number starts with Q8H.

Jul 03, 2009 | ViewSonic VP930b 19" LCD Monitor

1 Answer

No true black appears to be available

Try this:

Turn the monitor on. Make a background picture of a black and white checkerboard pattern.

Press and hold the 1, up and down buttons. A small icon will eventually show on the display and the monitor will do a white ballance.

It can be hard to get the monitor to do this sometimes. Just keep trying until it works.

Note, you should open the monitor and look at the caps in the power circuit. They may need to be replaced. Better now than later.

Apr 11, 2009 | ViewSonic VP930b 19" LCD Monitor

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30 bad VP930B's may have green LED for an instant that's it. No display either.

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.

Sep 10, 2008 | ViewSonic VP930b 19" LCD Monitor

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Viewsonic vp930b-3

MY VP930b has the same problem.
It takes a very long time (5-10 minutes) before it becomes normal.

Aug 04, 2008 | ViewSonic VP920b 19" LCD Monitor

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