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I had this problem with my Q9 and I was glad to find the FixYa website with help. But I will offer more detailed info for novices to make sure you find the capacitors. First of all, it is not easy trying to find out how to open the monitor up! First, set it down flat on it's face, being careful not to scratch the screen. Pop off the cap that covers the stand mount to the screen. You might also want to remove the base by squeezing the bottom tabs to the middle and pushing them out. Once the base cover is removed, you will see the 6 screws holding the base arm to the screen. Remove those and the arm will come off. Now, on the bottom right, there is a beveled slot where you can fit a flat bladded screw driver to start to snap open the case. Move around the case separating it carefully until it is completely un-snapped. Unplug the speaker cable (mine gave me some trouble but I worked it side to side and it finally let go). You can push the videop cable through the the back case to get the case out of the way. Once you have removed the back half of the case you will not immediately see the offending capacitors. You will need to remove 4 phillips screws holding down a metal shield on the power board. You may also have to remove some metal tape covering 2 of the screws. When the screws and tape are removed, you will need to slide the metal shield to the right to release it from a 3 pin connector that the two boards. Be careful that you don't damage that connector. Lift up on it a little and slide it left until the connector is disconnected. Now you can see the capacitors. I only had to replace the 3 bulging ones and that fixed my problem as well. Thanks all for your helpful comments in saving me money on a new monitor!!
on Feb 21, 2013
How do I clean the monitor? my cat has put nose
The best way to clean an LCD monitor is to take a lint free cloth and spray it with Windex or vinegar and water solution, or in a severe case, summer windshield washer fluid (the kind meant to remove insect guts). Make sure the cloth is DAMP, not WET (we don't want anything dripping out of it) and wipe the screen thoroughly.
Dry with another lint free cloth while the screen is still damp.
on Jul 17, 2011
At start up my Q9 the power light turns green and
If you are going to DIY and already try the monitor with another PC, 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/albums/yy352/budm/
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 and TV troubleshooting guide:
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.
on Feb 25, 2011
DCAC40A4 power converter failure
I think this is a dipped .33 uf or 3300pf 250v cap. I thought tantalum, but none are available at 250v, so I think it is ceramic.
http://www.badcaps.net/ has a forum and a section for computer displays. There is a recent post on a viewsonic there.
digikey.com has low cost/order shipping fees, mouser.com has parts too.
on Apr 01, 2010
I recently bought a Windows 7 64 bit PC. I have
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.
on Feb 24, 2010
After turning the monitor on, it goes dark.
You have a monitor with a power supply that is failing. We have a article on our web site at: www.ccl-la.com
The article talks about what goes out in the power supply and what you need to get to do the repair. If you don't want to do the repair yourself we do offer a repair service for $30 plus return shipping. If you would like us to do he repair then please use the service request form
I hope this helps, if so please rate our solution.
on Feb 22, 2010
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
on Jan 18, 2010
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