Question about ViewSonic VG800 18" LCD Monitor

3 Answers

Viewsonic vx800 blinking green light..no picture.....live in los angeles.....who can repair.....is it $ worth it.thanks

Posted by on

3 Answers

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    MVP:

    An expert that got 5 achievements.

    Filmmaker:

    Uploaded 5 video answers.

    Scholar:

    An expert who has written 20 answers of more than 400 characters.

  • Expert
  • 63 Answers

I have repaired several Viewsonic VX800 monitors. The symptoms include a power light that flickers or flashed on and off or a screen that flashes on briefly or stays off. The problem is bad electrolytic capacitors on the power supply board. These bad capacitors do not look bad and do not swell but they do develop a high ESR (Equivalent Series Resistance). You need a ESR meter to check them. But if you have these problems, you should assume the capacitors are bad and just go ahead and replace them.
First you must open the monitor and gain access to the power supply board.
1. Remove the stand: It is held with 6 screws on the back. Also on the back are 2 black screws that must also be removed.
2. Remove the button bar from the front, bottom: It is pried off. This will expose the 2 screws holding the front plastic bezel.
3. Remove the silver plastic bezel from the front: First remove the 2 screws holding it, then you can pry the rest off. This will expose the 2 screws holding the screen to the plastic back.
4. Remove the screen and electronics from the plastic back: Remove the 2 screws holding it. The 2 speakers are glued to the plastic case. Cut the glue with a knife. The screen and electronics and speakers should lift out of the plastic back.
5. Remove the metal cover to expose the electronics: There are 2 screws holding the VGA connector and 2 screws holding the DMI connector. There are 9 screws holding the cover. These must all be removed. There is a black plastic sheet glued to the lower edge of the cover. It must be lifted. The cover should now come off.
6. Replace the bad capacitors. The power supply and signal processor are on the same board. It is marked VG800-2. The bad capacitors are surfaced mounted 100UF 25V. The bad capacitors are CM16, CM17, CM2 and CM165. The two most critical are CM16 and CM17, but they all read high ESR, so I just replace them all as long as I have them exposed.
Reassemble in reverse order.

viewsonic vx800 - 6f08b093-ac4d-4146-bfa7-440b0a683458.jpg

Posted on Apr 17, 2013

  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 1 Answer

If you can solder and are acquainted with electronic parts (or if you have a friend who does), go to this website:
http://www.instructables.com/id/S21Z9IFFE3IPVKP/

I spent just an hour doing this and it worked. Hope this helps.

Posted on Mar 09, 2009

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

  • Master
  • 2,404 Answers

Its a problem with bad caps on the power board, problem is that it would cost you more to fix it then to buy another monitor cause your looking at the cost of either capacitors or a whole board if it can't be repaired component level and labor.

My suggestion is to get a new monitor. The repair cost would exceed the cost of a new monitor.

Posted on Feb 10, 2009

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

Will not power on, the power light flashes


Hi

If the power light is flashing its mean the monitor data cable is not fix properly, or the cable is not transmit the data. change you cable and try again


Cheer


Jun 21, 2011 | ViewSonic VX800 18" Flat Panel LCD Monitor

1 Answer

Viewsonic monitor vx2035wm goes black with a steady blue light on power button when the monitor is turned off or computer is restarted. Disconnecting it and letting it sit for a minimum of 24 hours makes...


I've been having the same problems with my Viewsonic.I plug it in and the blue light blinks but there's no picture it's just a black screen.I do know if Viewsonic doesn't repair my monitor I'll never buy anything from them again.I have the LCD Viewsonic 22' Vx2235wm monitor.
Does anyone have any idea what could be wrong with mine?I've bought a new video cable & video card but the monitor still does the same thing?Thanks

Oct 29, 2010 | ViewSonic VX2035WM LCD Monitor

1 Answer

I have a vx922, green light blinks but there is no picture.


Blinking about once a second? Switchmode power supply fault in the monitor.

May 19, 2009 | ViewSonic VX922 19" Monitor Flat Panel

1 Answer

My viewsonic monitor is not working


Considering the price of monitors versus the cost of repair. It would cost less to replace the monitor.

Mar 12, 2009 | MPC Computers Viewsonic E771 17 in.CRT...

1 Answer

Viewsonic vp930b-3


MY VP930b has the same problem.
It takes a very long time (5-10 minutes) before it becomes normal.

Aug 04, 2008 | ViewSonic VP920b 19" LCD Monitor

4 Answers

Viewsonic VX724 LCD Monitor


I contacted ViewSonic and they agreed to fix the problem as a warranty repair. Evidentially they're experiencing the same issue on many of these monitors. I had to pay for shipping to their Walnut, CA facility, they'll fix it and pay return shipping. Since it is considered a warranty repair, I think they should've paid for a round trip ticket. I don't want to sound like a cheapskate but it is a warranty repair and the shipping charge was $98.00. Ouch! Cheaper than a new monitor I spose, so I'm thankful for that. So those of you with this problem might consider contacting ViewSonic to see if they will repair this on a recall "like" basis if your warranty is up. If it isn't up yet, by all means send it back to them and make them fix it!

Jul 30, 2008 | ViewSonic VX924 19" LCD Monitor

7 Answers

Viewsonic VX922 19" Green Light Blinks when booted, no picture


I have the same problem with my VX922 as do MANY others. The problem seems to be caused by leaking/bulging capacitors on the circuit board. The only solution is to replace the faulty capacitors either on your own (which is fairly easy if you're good with a soldering iron) or send it to Viewsonic and have them fix it.

May 21, 2008 | ViewSonic VX922 19" Monitor Flat Panel

1 Answer

Vx800 flickers when cold


I have repaired several Viewsonic VX800 monitors. The symptoms include a power light that flickers or flashed on and off or a screen that flashes on briefly or stays off. The problem is bad electrolytic capacitors on the power supply board. These bad capacitors do not look bad and do not swell but they do develop a high ESR (Equivalent Series Resistance). You need a ESR meter to check them. But if you have these problems, you should assume the capacitors are bad and just go ahead and replace them.
First you must open the monitor and gain access to the power supply board.
1. Remove the stand: It is held with 6 screws on the back. Also on the back are 2 black screws that must also be removed.
2. Remove the button bar from the front, bottom: It is pried off. This will expose the 2 screws holding the front plastic bezel.
3. Remove the silver plastic bezel from the front: First remove the 2 screws holding it, then you can pry the rest off. This will expose the 2 screws holding the screen to the plastic back.
4. Remove the screen and electronics from the plastic back: Remove the 2 screws holding it. The 2 speakers are glued to the plastic case. Cut the glue with a knife. The screen and electronics and speakers should lift out of the plastic back.
5. Remove the metal cover to expose the electronics: There are 2 screws holding the VGA connector and 2 screws holding the DMI connector. There are 9 screws holding the cover. These must all be removed. There is a black plastic sheet glued to the lower edge of the cover. It must be lifted. The cover should now come off.
6. Replace the bad capacitors. The power supply and signal processor are on the same board. It is marked VG800-2. The bad capacitors are surfaced mounted 100UF 25V. The bad capacitors are CM16, CM17, CM2 and CM165. The two most critical are CM16 and CM17, but they all read high ESR, so I just replace them all as long as I have them exposed.
Reassemble in reverse order.


dcc852a4-9a14-4b0d-9886-ab2efc735bb2.jpgaaf05adc-0a5c-46f3-a18f-3d81aad3e070.jpg

Oct 18, 2007 | ViewSonic VX800 18" Flat Panel LCD Monitor

Not finding what you are looking for?
ViewSonic VG800 18" LCD Monitor Logo

375 people viewed this question

Ask a Question

Usually answered in minutes!

Top ViewSonic Computer Monitors Experts

Les Dickinson
Les Dickinson

Level 3 Expert

18298 Answers

Brian Sullivan
Brian Sullivan

Level 3 Expert

27725 Answers

Donald DCruz
Donald DCruz

Level 3 Expert

17129 Answers

Are you a ViewSonic Computer Monitor Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...