Question about ViewSonic Optiquest Q19wb LCD Monitor

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Optiquest Q20WB backlight replacement?

I have the mentioned 20" lcd monitor and it will display an image for a second when you first turn it on but then it goes black. The power button stays green and if I have a web page open and hold the monitor sideways I can faintly see the image. I have been told to replace the backlight and was wondering if anyone has done this or maybe has the instructions on how to get the backlight out of this monitor or to even get to it? I see a couple of screws behind the stand I removed from it but does the bezel/case just snap open or am I missing something? TIA for any advice, this will be the first time I fixed one of these

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  • daron_uk May 11, 2010

    Hi I have the same monitor as you with the same symptoms. I have been swapping a few capacitors on the power board with no joy. Did you resolve your issue and if so how? Thanks

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6 Suggested Answers

MrDallasIT
  • 91 Answers

SOURCE: I have a viewsonic optiquest monitor Q20WB and buttons not workin

Sounds like that monitor has reached the end of the road. I would recommend purchasing another monitor, other than view sonic. Purchase a Dell..they are great!

Posted on May 14, 2009

budmrtn
  • 11361 Answers

SOURCE: optiquest q20wb goes to black screen after 2

First to check will be the power supply, look for bad caps with bulging tops first then report back so we can guide you further, see example of failed monitors due to bad caps: http://s807.photobucket.com/home/budm/allalbums

Posted on Feb 04, 2010

hbushi
  • 7 Answers

SOURCE: Optiquest q20wb LCD has black screen & green power light flashing

Hi Rickyknows2,
If you are not hearing any beep I assume you are having problem with your video so, please ...
- open your PC and check whether your video card is well placed (sometimes it looks fine but you never know) remove it and put it back.
- If you used to remove often the cable from the PC, it might be that the pins from the monitor cable are even broke... please check.
- try to find another video card and replace it just to make sure its the video ...
- last... reset the bios (but I doubt that this is your problem)
chsers ..

Posted on May 03, 2010

Fenriswolfe
  • 26 Answers

SOURCE: Viewsonic Optiquest Q20wb green blink light

It's an issue with the power supply, most likely the Capacitors (one or more) may be shot. Open it up if it is out of warrenty, look at the capacitors (they look like cans), if they are bulging at the top or even sides they are bad. This is a common problem with this monitor. Crappy Caps used in manufacturing. Replace all the caps with same rated caps and you should be good. Do your research on how to desolder the old ones off and proper installation of the new ones.

Posted on Oct 06, 2010

budmrtn
  • 11361 Answers

SOURCE: i have a optiquest Q20WB

More likley to have bad caps like other Optiquest monitors as shown in my albums.
If you are going to DIY and have proper tools and know safety precaution then please read on:
Most common failures in the LCD monitors are bad capacitors (bulging top/seal or leaking) in the power supply (they should be replaced in a set), 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 OPTIQUEST 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.

Basic LCD monitor troubleshooting guide:
http://www.fixya.com/support/r6150077-basic_lcd_monitors_troubleshooting

http://en.wikipedia.org/wiki/Capacitor_plague
Capacitors kit: http://lcdalternatives.auctivacommerce.com/ he can make you a set of caps for you.

Posted on Oct 23, 2010

  • 1684 Answers

SOURCE: How do I open a

Hello,

We have a repair guide for the Q19WB model posted on our web site at: http://www.ccl-la.com/blog/index.php/how-to-repair-a-optiquest-q19wb-monitor/
This model is basically the same instructions to open it as on your model. If you need the parts for your repair we also carry them in a kit at: http://www.ccl-la.com/catalog/product_info.php?products_id=115
If you have any questions just let us know.

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

CCL Tech
Corporate Computer
www.ccl-la.com

Posted on Oct 24, 2010

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1 Answer

Please help me my optiquest q19wb model #vs11443 is shuting off aftre 1 second i opened it and no capacier were damadged what is wrong... the unit is not old 2 years i am not rich and want to save...


The usual problem with this symptom is an CCFL power supply failure. The inverter is the board that powers the backlights so you can see what is on the screen. If you look really close and with a flashlight, you may be able to see the dark shadow of the image on the screen. Without the backlight, the LCD is useless.

You can get parts from places like http://www.lcdalternatives.com/ or eBay. Search for the model number and "repair" (e.g. "Optiquest Q19wb repair") on eBay.

Apr 12, 2011 | ViewSonic Optiquest Q19wb LCD Monitor

1 Answer

I have a optiquest Q20WB monitor when i push the power botton the green light flashes but the monitor doesnt come on.


More likley to have bad caps like other Optiquest monitors as shown in my albums.
If you are going to DIY and have proper tools and know safety precaution then please read on:
Most common failures in the LCD monitors are bad capacitors (bulging top/seal or leaking) in the power supply (they should be replaced in a set), 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 OPTIQUEST 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.

Basic LCD monitor troubleshooting guide:
http://www.fixya.com/support/r6150077-basic_lcd_monitors_troubleshooting

http://en.wikipedia.org/wiki/Capacitor_plague
Capacitors kit: http://lcdalternatives.auctivacommerce.com/ he can make you a set of caps for you.

Oct 23, 2010 | Optiquest Computer Monitors

1 Answer

I want to see my lcd monitor's waranty status from my serial no


Hi

you can call ViewSonic Customer Support: 800-688-6688 in the U.S. and 866-463-4775 in Canada, give them your product serial no and they would be able to give you the status on your product warranty.

In case you want to avail the warranty service they would also give you a RMA (Return Material Authorization number) number.

As mentioned on ViewSonic website "ViewSonic LCD computer display products carry a three (3) year limited warranty for parts, labor and LCD backlight. Optiquest products carry a limited warranty of one (1) year for parts, labor and backlight. In order to receive warranty service, proof of purchase of the ViewSonic product is required."

Hope this helps

Regards
KreativeGeek

Jun 23, 2010 | ViewSonic VA1912w 19" LCD Monitor

1 Answer

Optiquest q20wb LCD has black screen & green power light flashing


Hi Rickyknows2,
If you are not hearing any beep I assume you are having problem with your video so, please ...
- open your PC and check whether your video card is well placed (sometimes it looks fine but you never know) remove it and put it back.
- If you used to remove often the cable from the PC, it might be that the pins from the monitor cable are even broke... please check.
- try to find another video card and replace it just to make sure its the video ...
- last... reset the bios (but I doubt that this is your problem)
chsers ..

May 03, 2010 | ViewSonic OptiQuest Monitor

1 Answer

Optiquest q20wb goes to black screen after 2 secondsthen turn it off and back on stays on for about 2 seconds again goes black and if you leave it on the video will come back and then turn off almost right...


First to check will be the power supply, look for bad caps with bulging tops first then report back so we can guide you further, see example of failed monitors due to bad caps: http://s807.photobucket.com/home/budm/allalbums

Feb 04, 2010 | Computer Monitors

2 Answers

Viewsonic Optiquest Q20wb green blink light


It's an issue with the power supply, most likely the Capacitors (one or more) may be shot. Open it up if it is out of warrenty, look at the capacitors (they look like cans), if they are bulging at the top or even sides they are bad. This is a common problem with this monitor. Crappy Caps used in manufacturing. Replace all the caps with same rated caps and you should be good. Do your research on how to desolder the old ones off and proper installation of the new ones.

Aug 18, 2009 | Computer Monitors

4 Answers

Viewsonic Optiquest Q19 blanks out - just a year old


Sounds like the LCD panel inverter is going out, if not gone out completely.

Jul 18, 2009 | ViewSonic Optiquest Q19wb LCD Monitor

1 Answer

I have a viewsonic optiquest monitor Q20WB and buttons not workin


Sounds like that monitor has reached the end of the road. I would recommend purchasing another monitor, other than view sonic. Purchase a Dell..they are great!

May 13, 2009 | ViewSonic Optiquest Q19wb LCD Monitor

1 Answer

Optiquest q20wb Screen goes blank after powering on


I'd like to report a success story. I had this same problem with my Q20WB. It sat for over a year in my garage. I eventually bought replacement capacitors, soldered them in, and now it works. You can find kits with the right capacitors preselected, or if you feel like it you can also buy them individually.

good luck

Mar 02, 2009 | ViewSonic OptiQuest Monitor

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