ViewSonic VX922 monitor - black screen - green power light flashes

[beef682]

Yay! thanx to the folks on this page, my monitor works now. I replaced the six caps with the ones in the instructions of:

2 1000mF 10v
3 470mF 25v
1 470 mF 10v

But the store I got my caps from ony had 35 V for the 3 25v caps but they work too.
This is mine that I bought for $8.39 total (about $1 each):

2 1000mF 10v
3 470mF 35v
1 470 mF 10v

Strangely enough the 2 1000Uf caps were the smallest of all of them and the 470uF 10v was the largest, about twice the size of the original but it works, tight fit for the 470uF 10V though.

Took 1Hour of soldering and assembly and poof it works just like that.
I highly recommend this to anyone with broken Viewsonic VX922 LCD rather that sending them the damn thing and waiting a long while, just do it your self in an afternoon, Just remember which way the + and - of the caps go, dont mess up.

 

[heikosch]

Just replaced the caps and repaired my Viewsonic VX922. 🙂

Thank you all very much for the repair guide.

Heiko

 

[Guest]

I also was successful!!!!

My VX-922 has been working for about 10 days now. I had to order via digikey http://www.digikey.com/ , but the capacitors were here in about three days. It took me awhile longer than the others to do the soldering; took me about 4 hours to open the case,do all six capacitors and put everything back together. Guess my big hands just go slow.

As I said I ordered from digikey, but had to take part numbers from two different previous posts.

[fixed]
Qty Part Number Manufacturer Part Number
4 565-1905-ND ELXZ100ELL102MJ16S
2 565-1902-ND ELXZ100ELL471MH12D
6 P13124-ND EEU-EB1E471
[/fixed]

I ordered twice as many as I needed--- just in case. Everything cost less than $10, including shipping.

Thanks everyone!

 

[sainty1969]

Hi
Just like to say thanks to those who made the effort to find a fix and also for sharing the info. I have just replaced 5 out of 6 of these capacitors and it all went well and was easier than I thought.

cheers saint

 

[Guest]

just finished to replace the capacitors of my VX922, and now it works like a new
thanks

 

[howie_60]

I noticed people mentioning their refresh rates. On an LCD it should never go above 60hz unless otherwise specified. If you do, you get problems like that. Most of you probably know this though 😉

Hi To All,
Im new to all this, so thanks to all for the help and advise. I have a Viewsonic VA912b (over 3 years old) and have only had the problem (for last two months) if I turn the monitor or computer off, the Green Light would flash and a clicking sound from the monitor and blank screen, I to had to pug and unplug monitor to get it to work, if I left the computer on for days no problem, but as soon as computer or monitor got swicthed off it would start to play up.

I have now changed my refresh rate from 75hz to 60hz and have been able to turn monitor on and off at will with no problem. Fingers crossed that it, will write again if something new happens, big thanks to leo2kp and all. Cheers Howie.

 

[jogex]

I have my VX922 since 2006, and 3 years later the problems starded. the blinking lights and those problems, I bought another, a samsung monitor and the problem happened too (2 months worked good and it died too, blinking lights), and I bought another monitor a samsung. But this time I worked a little more, because I had video problems too; something was going on my computer. Guess what? I had to take out my X-Fi Fatality and now I used the 3rd monitor 4 months and everything is ok.
And I have to say THANKS because I was thinking to kick my viewsonic to the trash and I found this forum. i readed it tuesday and I got the CAPS yerterday
half hour and I have 2 monitors I'm so happy!!!!!!!!!!!

Sorry, I dont speak english :S

P.D. I spend $ 2.00 PANAMA 😛

 

[lilome31]

Hi. I have the VX910. Recently started having the blinking light problem. Tried all the basic fixes. Then discovered this forum. Tried the cap fix. Intermittent results. The monitor now randomly displays then goes black. Same blinking light. Also, if it is up and you power won using the power button. Same result. Display goes black, then blinking light.
Was wondering or asking if my fix might be to replace the whole power supply board. Mybe some othe componant on it is bad. The forum/thread replies direct me to Viewsonic websit. PSU board #B-00002481 for $31.50. Like so many forums I have noticed that sometimes the htreads wander. In this case started out VX910 then wandered to other models. The Viewsonic site does not list the B-00002481 as compatable with the VX910 display. Well I am willing to drop the coin if it will resolve my issue. I only have about $50 bucks into it so far. Original purchase, used $40, the the replacement caps. Thoughts?

 

[nmcclell]

I have a Viewsonic VG930M flat screen monitor that I bought in February 2007. I never had any problems with it until last week when I started my computer and turned on the monitor, all I could get from the monitor was the flashing blue light. If I leave it for about 15 minutes, it will finally come up. I called Viewsonic tech support 4 times (what a waste). The first time I was to unplug the monitor from the computer, which I did. That didn't help. I called them back and then they told me that my monitor cable was probably bad and I needed to buy a new one, which I did. That didn't work either. I called them back again and this time they told me I needed to plug the monitor in to another computer and see if it had the same problem. They act like I have more than one computer in my house. I told them that was not possible. Then they told me I should take it to one of the computer stores and ask them to check it on one of their computers. I did, and the same thing happened with them. Office Depot tech told me it was probably a short in the monitor. I called Viewsonic and told them and their only solution for me was to send it back for repair. No idea when it would be fixed or come back. I asked what I should do in order to use my computer in the meantime. They said to borrow a monitor from one of my friends. My friends don't have monitors they loan out. At this point, I told him he didn't know what he was talking about and I asked to speak to a supervisor, but of course, a supervisor was not available. I have purchased 3 monitors from Viewsonic in the past, but I will never, ever, buy from them again and will discourage anyone I know that is thinking about buying from them not to because of their complete lack of customer support. By the way, they said their policy was not to replace the monitor with a new one, but a reconditioned one because the monitor was over 30 days old. Again, I told them their customer support "sucked". I am not a person who is familiar with hardware and would be afraid to try to take the monitor apart as was suggested by some people here. I wish I was. Anyway, IO have vented my frustration.
Thanks for reading.

 

[Amirgrey]

I have an Advueu Product Number: ADV190WDT. Same Problems as you all have had.

Went researching it. and asking fellow techies what my issue might be. Some have said Oh the powersupply in your monitor(didn't Check). or you cable is damaged(never touch my cables), or blown Back light(use a Flashlight to see if you have a picture just no light).... no to all of these.

Even though all of you are saying V**** models i think it's a bit wider then this. I will be trying to prying open my monitor cause wife doesn't want to shell out the dough(nor do i) I use to Solder for a living so i will be doing my own work 😀!!! But will also use the insight from fellow Electrical Engineers from my work.

Praying all goes well. God bless you all for your help!

 

[telefunk 9]

Thanks to all who added info to this thread. I too had a Viewsonic vx922 monitor with a flashing power light. A trip to hack shack and $5.00 in electrolytic caps cured my problem. I do have electronics experience so the soldering was not an issue, but to those that do not it may present a problem. A good 30 watt soldering iron, desolder braid, and solder and maybe ( like in my case ) a magnifing glass is all thats needed. Good luck to all who attempt this repair. Do it, It'll make you feel

 

[Gumby_08]

Fixed another one of my VX922 this morning

3 of the caps were bulging instead of just doing the 3, I replaced all of them.

 

[Lubidius]

I greatly appreciate all of you posting not only the fix involved, but also the component website part references and such. I especially appreciate the photo links. They helped a lot to find what the original fix poster was pointing out step wise. I was able to fix my vx922 by using the following parts from DigiKey (who by the way were EXTREMELY good as far as speed and quality of service)

1 x P13457-ND
CAP 470UF 10V ELECT EB RADIAL

3 x P13124-ND
CAP 470UF 25V ELECT EB RADIAL

2 x P12353-ND
CAP 1000UF 10V ELECT FM RADIAL

The total for the 6 capacitors was $8.03 (with $4.80 shipping and .58 cents Sales Tax included.)

You all saved me a lot of grief trying to ship the monitor to Viewsonic for an RMA that likely would have just ended up with the same blown capacitor issue!

Thanks again.

 

[Caine]

There is a very simple fix and you guys will slap urselves in the face when you hear it. I am useing that moniter right now. If you have another display, plug it into the computerand find the controller for the graphics card. usualy in the control pannel. go to the Viewsonic website and get the manual for the display if you dont have it. under specifcations, find the supported reulutions, and change you graphics card to out put at that rate. ive used mine without struggles for about a week now.

I've been having the same problems so after reading a few of the suggestions on this page, I decided to do some investigation of my own on my puter. I thought I was truly buggered when you guys spoke of this problem only occurring with a particular monitor make. Mine's a generic boring non known 17 incher!!.... I've sorted my problems out so if this helps anyone else then my time here is worth it. I went into the display properties then into the settings tab. You need to crank up the resolution to 1024 by 600px as this is mostly the set for the LCD TFT monitors but the do vary at times so best to check your manual or the back of the monitor as its usually there too. Then click on the advanced button. Then click on the 'Monitor' tab. You'll see the MHz settings, should be between 60 and 75. Just beneath that there should be a box that's checked. Make sure is checked as this stops other MHz being displayed and if you've already got a different MHz than the one in your manual or rear of the monitor, then this could be whats contributing to your problems. Using a different MHz not recommended by your manual or rear monitor can cause unstable display and/or damage hardware. Then click on the 'troubleshooting' tab and uncheck the box 'Enable Write Combining' if its checked. If checked it causes screen corrupt if display speed is increased so make sure you've unchecked. Click 'Apply' at the bottom of the box. Restart your computer get down on your knees and pray!!! This should have sorted out your problem. Its worth a try, it worked for my generic TFT monitor.
Good luck,
Caine

 

[Caine]

Tried it on another PC. Every time the green blinks, the screen flashes, and there is a dim view of the OS. Almost like the contrast is turned way down. Anyhow, I put it back together and put it away until I find a solution...



Mark

I've been having the same problems so after reading a few of the suggestions on this page, I decided to do some investigation of my own on my puter. I thought I was truly buggered when you guys spoke of this problem only occurring with a particular monitor make. Mine's a generic boring non known 17 incher!!.... I've sorted my problems out so if this helps anyone else then my time here is worth it. I went into the display properties then into the settings tab. You need to crank up the resolution to 1024 by 600px as this is mostly the set for the LCD TFT monitors but the do vary at times so best to check your manual or the back of the monitor as its usually there too. Then click on the advanced button. Then click on the 'Monitor' tab. You'll see the MHz settings, should be between 60 and 75. Just beneath that there should be a box that's checked. Make sure is checked as this stops other MHz being displayed and if you've already got a different MHz than the one in your manual or rear of the monitor, then this could be whats contributing to your problems. Using a different MHz not recommended by your manual or rear monitor can cause unstable display and/or damage hardware. Then click on the 'troubleshooting' tab and uncheck the box 'Enable Write Combining' if its checked. If checked it causes screen corrupt if display speed is increased so make sure you've unchecked. Click 'Apply' at the bottom of the box. Restart your computer get down on your knees and pray!!! This should have sorted out your problem. Its worth a try, it worked for my generic TFT monitor.
Good luck,
Caine

 

[Caine]

I've been having the same problems so after reading a few of the suggestions on this page, I decided to do some investigation of my own on my puter. I thought I was truly buggered when you guys spoke of this problem only occurring with a particular monitor make. Mine's a generic boring non known 17 incher!!.... I've sorted my problems out so if this helps anyone else then my time here is worth it. I went into the display properties then into the settings tab. You need to crank up the resolution to 1024 by 600px as this is mostly the set for the LCD TFT monitors but the do vary at times so best to check your manual or the back of the monitor as its usually there too. Then click on the advanced button. Then click on the 'Monitor' tab. You'll see the MHz settings, should be between 60 and 75. Just beneath that there should be a box that's checked. Make sure is checked as this stops other MHz being displayed and if you've already got a different MHz than the one in your manual or rear of the monitor, then this could be whats contributing to your problems. Using a different MHz not recommended by your manual or rear monitor can cause unstable display and/or damage hardware. Then click on the 'troubleshooting' tab and uncheck the box 'Enable Write Combining' if its checked. If checked it causes screen corrupt if display speed is increased so make sure you've unchecked. Click 'Apply' at the bottom of the box. Restart your computer get down on your knees and pray!!! This should have sorted out your problem. Its worth a try, it worked for my generic TFT monitor.
Good luck,
Caine

 

[Guest]

😀 just fixed my VX922 monitor ! woot... well at first my monitor was having the same problems as everyone else's here, it would work great then just occasionally poof no longer display, i run this monitor as an extension to my 24" so it wasn't a huge deal, i could get it working again if disable the monitor, shut down, waited and tried again, but then one day it just would not come back, no error message like no source connected just sit there blinking a green light and displaying nothing.. was pretty disappointing but thought I'd google around to see if it is fixable...

I found some sites for different monitors claiming that LCD's with these symptoms (no connection error but a active light) can be because of faulty capacitor(s), which would explain why the problem is so intermediate and frustratingly hard to pinpoint, until one of the bad cap's just completely fails and then the monitor won't come back. (if you care the problem is accelerated when ever the monitor has to change its resolution, this puts the caps through a cycle which may or may not succeed with swelled capacitors, if you have a monitor that is still in the in between stage try manually changing the res, your monitor will not want to come back until it resets after it loses power.)

** fix worked for me**
Anyway to fix it you gota crack open you monitor and replace your swallon capacitors (I had 6)
What I did ~
remove the black screws on the outside, pull the back plastic panel off use knife or something it has latches, now you have 4 metal screws that hold the main board that drives the LCD, take out those screws, unplug the connections (take pictures or something to remember orientation/place to plug them back!), flip the metal thingy over to revel the bottom of 2 PCB boards, unscrew both of them but the one you want is the bigger one, this one is the power board and it has a right angle connection to the smaller PCB board, you need to wiggle it out before you can free the power board. The smaller board has the connections to your dvi vga ports so it will not come out all the way, but you only need to move it to pull out the connectors to the bigger board. (try not to touch the board just the edges), now that the boards free look at your cap's, your looking for the tops of them to be bent outwards like they are gonna explode, if they look like this they are swollen and will not longer work correctly or sometimes at all... De-solder them carefully and solder in brand new matching cap's, make sure the polarization is correct, (long leg should go to the unshaded region, short leg with - marking goes to the shaded region on the PCB board). Put it all back and power it on! Worked for me and it cost less than $5 granted i already have solder and a soldering iron. Its very likely we have similarly failed caps so the ones that failed me were:
2 - 1000uF @ 10V
3 - 470uF @ 25V
1 - 470uF @ 10V

again this worked flawlessly for me, i can change the res to w/e and it just works, so hope it works for you! good luck
(oh ya my monitor was obviously out of warranty, if yours is still good have them fix it)
~David

Thanks a lot Mister drumerman, that work perfectly with the news capacitors.
I have to change 5 of them :


1 - 470uF @ 10V
2 - 1000uF @ 10V
1 - 470uF @ 10V

Take care to take 105 ° C capacitors.

I will need probably to change in the future an other 2 :
2 - 100F @ 25V (they wasn't have a very good aspect...)


You are a respectable man !


Martial LOPEZ

 

[Guest]

Thanks drumerman. Followed your instructions and the monitor is working great now.

 

[mrfixit]

My VX922 was working great for about a year...well...warranty period + a month 🙁
I sent Viewsonic C/S a couple emails, but they did not even reply...
I did not feel 100% confident about taking the monitor apart, but it was actually failrly easy.
I found 6 caps that the tops had "bulged" or were "swollen", a good cap is flat on top.
Finding replacement caps was not an easy task, but I did eventually find an online supplier which I highly recommend.
I placed an order online with digi-key, link below:

http://www.digikey.com/

I used their LIVE CHAT support (very cool) to ensure I had the proper replacements.
If you use the LIVE CHAT, take the time to measure the size of the caps width, height and the space between the "leads", because size does matter...and the tech will likely ask you for those measurements..I am guessing that the caps even with identical specs come in different sizes and you could run into height or width problems.

My caps were identical to drumerman, I am including the measurements and item numbers to hopefully save you the effort if you choose to ordrer from them:

2 - 1000uF @ 10V measured 0.394" Dia x 0.630" H (10.00mm x 16.00mm) lead spacing 0.197" (5.00mm) item #493-1497-ND cost 48 cents/unit
3 - 470uF @ 25V measured 0.394" Dia x 0.630" H (10.00mm x 16.00mm) lead spacing 0.197" (5.00mm) item #P13124-ND cost 39 cents / unit
1 - 470uF @ 10V measured 0.394" Dia x 0.512" H (10.00mm x 13.00mm) lead spacing 0.197" (5.00mm) item #493-3017-ND cost 1.39 / unit

If you enter the item # in the "part search" on the website it will take you directly to the item, you will see the photo and all the specs...(there are so many kinds, it was reassuring to see I had the right type)
Note: the 470uF 10V that I purchased is slightly larger than the original (size wise) but it is identical spec wise. It fit on my board, however, there was a bit of...well it looked like that foam insulation stuff...I had to slice away a tiny bit of it with an olfa knife (utility knife) so that it would fit, but it was no big deal.

One more watch out...if you do not do a lot of this...the soldering iron you use should not be a 300W version...they can damage your board...reading online will advise you to use a lower watt version to avoid damaging your components. I bought a fine tipped one at a local hardware store for 14.95...25W - 40W was recommended...so I went with a 35W soldering iron.

As for any other advise, I suggest you read Drumerman's post, it is bang on and is everything you need to fix this problem yourself. Shipping cost was $8 and my part cost is listed above...dirt cheap VS sending to a tech out of warranty. My total cost was around $26.47 (inculding the soldering iron)
I would like to thank everyone for posting their problems and solutions, it enabled me to accomplish this on my own and is also the reason I am posting my comments. Special thanks to Drumerman.
If I can help you further, just reply to my post and I would be glad to help if I can.

 

[Aisi]

Hi!

I've replaced the capacitors yesterday.
When i now turn on my VX922 the display is shining completely white.

I used DC capacitors, may i had to use AC capacitors?
Does anybody know?

Thanks a lot!

Best regards,
Tony

Hello,

I have exact same problem with VX922 than doul1010. So there is no green blinking anymore and monitor responses connecting and changing resolution and everything. The problem being that the screen is completely white when it's getting a signal otherwise it's dark in stand by mode.

I've reassembled few times with no luck. All cables seems to be connected and connected right according to Gumby_08's photos.

So is there anything I could do to try fix that problem or should I just dump the screen? Do you think the problem is in PS board or have I managed to broken something else.

Thank you already!

Regards Aisi

 

[mrfixit]

Hello,

I have exact same problem with VX922 than doul1010. So there is no green blinking anymore and monitor responses connecting and changing resolution and everything. The problem being that the screen is completely white when it's getting a signal otherwise it's dark in stand by mode.

I've reassembled few times with no luck. All cables seems to be connected and connected right according to Gumby_08's photos.

So is there anything I could do to try fix that problem or should I just dump the screen? Do you think the problem is in PS board or have I managed to broken something else.

Thank you already!

Regards Aisi

The capacitors I listed and used are DC caps. The first thing I would check is that they were installed with the correct POLARITY, if they are backwards it could be your problem. Then I would carefully check that you have the proper replacement caps, again the uF rating has to match perfectly, althought I have been told that the voltage can be higher as long as the cap still fits (physically). Many higher voltage caps are too tall or too wide. Another watch out may be the temperature, my caps are 105 degrees C, make sure your not replacing yours with a lower temperature rating...Again, I highly recommend the online Chat at Digikey for Capacitor related tech support, they are very knowledgeable.

 

[mrfixit]

The capacitors I listed and used are DC caps.
The first thing I would check is that they were installed with the correct POLARITY, if they are backwards it could be your problem.
Then I would carefully check that you have the proper replacement caps, again the uF rating has to match perfectly, althought I have been told that the voltage can be higher as long as the cap still fits (physically). Many higher voltage caps are too tall or too wide.
Another watch out may be the temperature, my caps are 105 degrees C, make sure your not replacing yours with a lower temperature rating...although I am not sure if this would cause the "white out"...peding on how hot it gets, I would still replace with the exact specs temperature wise.
Another plug for digikey....I highly recommend the online Chat at Digikey for Capacitor related tech support, they are very knowledgeable.

 

[Guest]

matthew maher 09/12/09 IT DOES WORK!!!!!


thanks for help, i'd been running a duel setup, they failed over about a month (sometimes manage to get them working by turning the monitor on and off). I followed instruction above and fixed them both!

thank you so much!!

thanks to my step dad for the soldering.

 

[jskirwin]

I had the same blinking green light problem with my Viewsonic Optiquest Q20WB, a monitor that I picked up 2 1/2 years ago from Newegg. I called Viewsonic after two emails to their tech support were ignored and was told that since the monitor was out of warranty I would have to ship it in for repairs on my own dime. All I wanted to know from the tech person was how to determine whether the problem was a power supply problem or a backlight problem. The genius said it could be either one.

So I went to Newegg and shelled out for another monitor (NOT made by Viewsonic and with a 3 year warranty), dug up my trusty old NEC - the first flat screen I ever bought 7 years ago - to use until my new monitor arrived, and set the Optiquest on my work bench.

While searching Google I found this thread. After rereading completely several times I took apart my monitor and sure enough, six of the caps had puffed up. I ordered their replacements from Digikey on Monday and received them today (Thurs). Although I am a terrible solderer and didn't have desoldering wick I was able to replace the caps and reassemble the monitor in under an hour. I am using it now to type this post, and my kid has already put it through its paces with Facebook and Left For Dead 2.

As for Viewsonic... I am disappointed with what I had believed was a decent brand. I don't expect electronics to last forever; I'd be happy if they lasted five years; but I expect them to last for two years. Viewsonic can buy all the ads it wants in magazines, but I will never, EVER buy from them again. If they won't be loyal to their customers, they can't expect their customers to be loyal to them. This is the kind of thing that inspires class action lawsuits. Lucky for them I hate lawyers more than shoddy computer product sellers.

This thread is why the Internet is so great. It reminds me of the old days when the Internet was young. For anyone stumbling upon this post who is hesitating, you can do it. Just take your time, take pictures and notes if you need to, and work in a cat free area (so they don't play with the screws and lose them). Buy the right capacitors checking the microfarads and voltage (microfarads must match, you can use caps with higher voltages). Oh, and get a desoldering wick. It makes things go much easier.

 

[mrfixit]

I had the same blinking green light problem with my Viewsonic Optiquest Q20WB, a monitor that I picked up 2 1/2 years ago from Newegg. I called Viewsonic after two emails to their tech support were ignored and was told that since the monitor was out of warranty I would have to ship it in for repairs on my own dime. All I wanted to know from the tech person was how to determine whether the problem was a power supply problem or a backlight problem. The genius said it could be either one.

So I went to Newegg and shelled out for another monitor (NOT made by Viewsonic and with a 3 year warranty), dug up my trusty old NEC - the first flat screen I ever bought 7 years ago - to use until my new monitor arrived, and set the Optiquest on my work bench.

While searching Google I found this thread. After rereading completely several times I took apart my monitor and sure enough, six of the caps had puffed up. I ordered their replacements from Digikey on Monday and received them today (Thurs). Although I am a terrible solderer and didn't have desoldering wick I was able to replace the caps and reassemble the monitor in under an hour. I am using it now to type this post, and my kid has already put it through its paces with Facebook and Left For Dead 2.

As for Viewsonic... I am disappointed with what I had believed was a decent brand. I don't expect electronics to last forever; I'd be happy if they lasted five years; but I expect them to last for two years. Viewsonic can buy all the ads it wants in magazines, but I will never, EVER buy from them again. If they won't be loyal to their customers, they can't expect their customers to be loyal to them. This is the kind of thing that inspires class action lawsuits. Lucky for them I hate lawyers more than shoddy computer product sellers.

This thread is why the Internet is so great. It reminds me of the old days when the Internet was young. For anyone stumbling upon this post who is hesitating, you can do it. Just take your time, take pictures and notes if you need to, and work in a cat free area (so they don't play with the screws and lose them). Buy the right capacitors checking the microfarads and voltage (microfarads must match, you can use caps with higher voltages). Oh, and get a desoldering wick. It makes things go much easier.

Great Post...I feel your pain. 🙁

I do feel however that I need to share a bit of information that I heard via the "rumour mill" and this I must stress is not "gospel".
A "person"(hope that is generic enough) told me a tail of a company that stole the "receipe" for producing caps (did anyone ever think there was such a thing for caps?) ....yadda yadda yadda...they were then able to sell same at a greatly reduced retail. They sold a ton of them and reputable companies took advantage of that cost savings....why wouldn't they...However, the reciepe happened to be flawed...and here we are....they last about a year and then pop their lids...(that is mine) I realize this is a completely useless bit of information...except for those of us who want answers.
Thanks "jskirwin" for the desoldering wick, I know I would have loved that info, lets hope it helps many others!!