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We have a Viewsonic Optiquest Q9B-2 LCD monitor with built in speakers. Worked fine and all of a sudden wouldn't power on. We checked power cords and changed 3-470 caps, 1-330 cap, and 1-10 cap. Monitor still won't recieve any power. All caps look good. Checked fuse and it is fine...Now what?? Is it trash?

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Probably not yet. Check and replace the power transistor on the source board , it has been surely fried when the capacitors failed. If even after that the source doesn't start then the transformer has been fried.- you will have to replace the entire power board. This will cost you around $75. If you think your monitor is worth that much money then go ahead, replace the board.
If not...

Posted on Oct 05, 2010

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MANUAL


HERE YOU GO:
http://www.2shared.com/document/DvXLz7b2/q9b-3_ug_eng.html

Dec 17, 2011 | ViewSonic Optiquest Q9b 19" Flat Panel LCD...

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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

How do I get the audio speakers to work?


Hello
xedman_0.jpg

-Make sure that you plug in the audio out from you computer to the audio port at the back part of you monitor -the audio controller of this monitor will be the function button in front.
the link below will contain the full manual of the monitor "http://www.viewsonic.com/products/archive/q9b.htm"
cheers.

Feb 24, 2011 | ViewSonic Optiquest Q9b 19" Flat Panel LCD...

1 Answer

I recently bought a Windows 7 64 bit PC. I have Optiquest monitor with built-in speakers. The sound was working fine and then it stoppped. I tried stand-alone speakers, then anoither monitor with speakers-...


Go into control panel / sounds / sounds and audio / select audio blind / should see a driver listed in each device. Back to sounds blind /test sound, if you can see the black arrow but its greyed out then driver is faulty. If you can click on it and it changes baxk to th esquare all is OK, ensure the sound jack is plugged into the GREEN ones at rear PC. Also check in volume blind that speakers are selected.

Feb 24, 2010 | ViewSonic Optiquest Q9b 19" Flat Panel LCD...

1 Answer

Optiquest q9b-2 blank white screen (lights up when powered up) no video ??no problem with computer, video fine on another monitor, tried this monitor on several computers same problem, blank white...


Often problems with LCD monitors can be traced to bad capacitors. The following sites will help you identify if your monitor has bad capacitors, and how to replace them.

www.fixyourmonitor.com and http://www.youtube.com/watch?v=9Q6_TgNJvQw

Good Luck!

Feb 06, 2010 | ViewSonic Optiquest Q19wb LCD Monitor

1 Answer

The monitor is all blue.


please check your "v.g.a" port and "link cord" it might be loose also check your ram it might be loose press it or else remove it and rub it with eraser the down part of ram and then insert again your work is done

Jan 18, 2010 | ViewSonic Optiquest Q9b 19" Flat Panel LCD...

1 Answer

Arcing sound when on then goes dark. Repeats when restarted


your ribbon cable to your LCD panel has a broken spot in it need to replace the LCD

Jan 13, 2010 | ViewSonic Optiquest Q9b 19" Flat Panel LCD...

1 Answer

LCD doesn't power up, light just blinks


Look at the power supply first; look for burnt parts, bad capacitors, etc.
http://en.wikipedia.org/wiki/Capacitor_plague
Please post back what you find

Nov 27, 2009 | ViewSonic Optiquest Q9b 19" Flat Panel LCD...

1 Answer

Monitor turns off and is dim


replace pwr inverter board...
replace the video/keyboard as well...

Feb 08, 2009 | ViewSonic Optiquest Q9b 19" Flat Panel LCD...

1 Answer

Not on


try eBay ressurectek for repairing you inverter/power supply board. If you have the one transformer (q9b-2) version, he says he can fix it.
tom

Sep 26, 2008 | ViewSonic Optiquest Q9b 19" Flat Panel LCD...

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