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"no sync" when I plug my large optiquest monitor into my lap top

I have been using an Optiquest 20" monitor plugged into my lap top, for a couple years now. One evening I unplugged the monitor so I could use my laptop in another room. When I plug the monitor back into my laptop it is dark, power is on and then says "no sync"

any idea?

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6 Suggested Answers

6ya6ya
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Posted on Jan 02, 2017

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  • 1 Answer

SOURCE: Optiquest Q9

My monitor, sure enough, had the dreaded 3 bloated capacitors. After soldering the new capacitors in, the monitor worked like new. Thank you Madbob for the suggestion.

Posted on Dec 09, 2008

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SOURCE: optiquest q9 turns off

read the solution I have wrote on th Q7
display goes blank after few second
the fix is about 5 $ the supply is almost dead

Posted on Feb 01, 2009

  • 340 Answers

SOURCE: Viewsonic Optiquest Q19 blanks out - just a year old

sounds like the inverter / but you can check the caps on the power supply to see if you are loosing one / could cause the same problem

Posted on Feb 25, 2010

budmrtn
  • 11361 Answers

SOURCE: ViewSonic Optiquest Q19wb LCD Monitor goes blank

Look here for guide: http://s807.photobucket.com/home/budm/allalbums

Posted on Mar 31, 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

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1 Answer

Viewsonic optiquest flat panel lcd monitor power light flashes on and off with a popping niose


Look for bad caps with bulging/leaking tops as shown here:
http://s807.photobucket.com/albums/yy352/budm/OPTIQUEST/Optiquest%20Q9B/

Very common problem in all LCD monitors as you can see in my albums.

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.

Oct 26, 2011 | ViewSonic Optiquest Q9b 19" Flat Panel LCD...

1 Answer

Modle VS11443 the monitor will only stay on for 30 seconds and then the screen goes off


Look for bad caps with domed tops as shown in my Optiquest Q19WB (VS11443) here: http://s807.photobucket.com/albums/yy352/budm/Optiquest%20Q19WB/

Please read my guide before DIY repair.

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: 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.
Please leave rating if it helps.

Jan 24, 2011 | ViewSonic OptiQuest 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 Computers & Internet

1 Answer

Viewsonic Optiquest Q19wb lcd Monitor goes blank after 2 secs. A couple of posts say replace the 1000uf 16v Cap My problem is i can't find them on the pcb (where are they?)


Look at the board where the AC power connector comes in that is the power supply board, there are more than one versions so it nay not have the same caps value.
Most common failures 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/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.
http://en.wikipedia.org/wiki/Capacitor_plague

http://www.badcaps.net

Post pictures or send them to me budmrtn@aol.com

May 15, 2010 | ViewSonic Optiquest Q19wb LCD Monitor

1 Answer

Barely used work fine and then no power nothing Optiquest 19" lcd


You can take the unit apart, in there you will see the power supply, check the fuses(small) and check the caps to see if the tops are bluging...

Feb 25, 2010 | ViewSonic Optiquest Q19wb LCD Monitor

1 Answer

I have a Optiquest Monitor Q9. The Monitor had a cract line from top to the bottom in the middle of the screen, but it still working, I would like to find out if Optiquest would replace just the screen....


On most lcd monitors the cost of the screen is usually close to the cost of the whole monitor, my feeling is if your monitor is under warranty then they will send you another monitor. If not then your going to need to search on Ebay, Google etc to see if you can find a damaged monitor with a good screen and have it cost less then the cost of a new one.

Jul 06, 2009 | Optiquest Computers & Internet

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 V655 Monitor no power


Have you tried another power cable? It could be a power supply problem. Too be honest, being a 15" crt monitor it would prob be cheaper to replace the whole unit than have it diagnosed and repaired

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