Having problems with your ViewSonic VG800 18" LCD Monitor ?

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


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.

6f08b093-ac4d-4146-bfa7-440b0a683458.jpgdf2efd27-00c9-4e68-a4c5-31ba1cdd65e2.jpg
If you can solder and are acquainted with electronic parts (or if you have a friend who does), go to this website:
\015\012 http://www.instructables.com/id/S21Z9IFFE3IPVKP/
\015\012
\015\012I spent just an hour doing this and it worked. Hope this helps.
Repair Help & Product Troubleshooting for ViewSonic VG800 18" LCD Monitor

Tips for a great answer:

- Provide details, support with references or personal experience .
- If you need clarification, ask it in the comment box .
- It's 100% free, no registration required.

Suggested Questions/Answers :

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


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 ... ViewSonic VG800 18" LCD Monitor

Blingking light on my motherboard, no power.


Chances are your power supply and computer is fine! From other forums on this problem (which I also had), I've learned the following:1. If you unplug the computer for a half hour or so (the blinking green light will gradually slow down and qu ... Sony VAIO VGC-RB42G PC Desktop

I have the same problem, and almost the exact same story as above


If you bought the battery off eBay, there is a STRONG probability that it was used. A used battery (if it is more than a year old - look at the manufacturing date) is GOING to fail soon. Order ea new battery that comes with a guarantee - from Dell ... Dell Latitude D600 Notebook

Monitor stays on for a few seconds then goes out


This problem is very often caused by dry electrolytic capacitors on the inverter board. If you have some skill with soldering you could try to change them. When buying new ones ask for LOW-ESR capacitors for switching mode power supplies (SMPS) and 1 ... Acer AL1711 17" Flat Panel LCD Monitor

Hp pavillion a350n green light on back blinks. after a power failure of three days my pc will not start. the pc was off before the power failure.


The green light blinking, is that near a network cable? It sounds as though the PSU has hung or had an issue. It might be worth trying to hold down the power button for around 20 seconds even 30 seconds. Then unplug the power and reconnect it. Tr ... PC Game Controllers

Dell Inspiron 1000 notebook won't turn on


The motherboard is bad. This model had a fault where after a while the North Bidge heatsink would break off and short the motherboard distroying it. This problem is something to not fix, it is not worth it, cost more than it is worth. ... Dell Inspiron 1000 Notebook

Power problem My XPS 200 wont power on checked all the obvious the pilot light inside is on and blinking green so its getting power.. just won't turn on


Hi, Sorry for the delay, my own system was downand full of gremlins with matches, so I had to re-build it.Most power supplies have a dedicated wire in the mainmother-board connector, I believe it is green. When thiswire ... Dell XPS 200 PC Desktop

My ViewSonic VX924 flashes the green power light off and on when I try to turn it back on after it has been off for a while. I can get it to work again by disconnecting the power in the back then reconnecting. Ideas?


I had several monitors do this. They start blinking on and off for a while until they warm up. It takes longer and longer for them to warm up, then eventually they never stay on and blink forever. In my experience, it has been the capacitors on the p ... ViewSonic VX924 19" LCD Monitor

I need help with power problem


You are correct about the DC plug on the 1100, they are well known for the problem you posted. It could be one of two things, the solder points where the DC jack is soldered to the motherboard could have "cold solder joints" and re flowing the solder ... Dell Inspiron 1100 Notebook

Monitor is busted!


If your pc works on another monitor. I would recommend you buy a new LCD monitor or a used CRT.\015\012\015\012The best solution if your computer works is to buy a LCD screen, I've thrown out my 17" crt screens they aren't worth anything ... Gateway FPD2275W LCD Monitor

Sony Vaio PCG-Z505 Notebook won't turn on


... Sony VAIO VGN-AR350E PC Notebook

I bought a used Samsung Syncmaster 151v and had it for only a few hours before a thunderstorm knocked the power out. When I went to turn the monitor back on, all I got was a blinking green light and no picture. I tested out a different monitor, which worked fine; thus ruling out my PC. Is there a way I can fix this myself? or is it just not worth the effort?


Lowell_43, Read my fixya profile for some ideas. Then make decision on what to do about your 151v CCFL back-lit lcd monitor that now has black screen failure and possible DIY repair or other options open to you. 12fixlouie ... Computer Monitors

Dark display about 1h. when swicth on.help me pls.........


I'm going through the same thing with a Dell 1905FP - it has 3 bulging capacitors on the Power Supply/Inverter board, and I suspect they are the culprits. At first it delayed a few seconds to start (green power light flashing in all situation), then ... LG Flatron 775FT 17" CRT Monitor

Acer X241W LCD Monitor - Screen blinks then no picture


Check the settings on the monitor using the menu with the monitor powered up and not connected to a PC. In the menu, check that no setting which refers to "sleep" is set to a ridiculously low number.The most likely diagnosis is that the m ... Acer Computer Monitors

Black screen with a flicker'


Hello,\015\012\015\012I sounds like you have a power supply that is going out. If you are able to open the unit and feel comfortable enough to solder parts I may be able to talk you thru a repair. May type of monitors have issues with pow ... LG Flatron L1951S 19" LCD Flat Panel Monitor

Should the light be flashing off and on why its charging


If the light goes from Green to Yellow constantly you have a bad battery most likely. Try an old trick! Put the battery in a ziplock bag and put in the freezer for 2 days. Remove from freezer and let it come to room temp. then put it back in the lapt ... Acer TravelMate 4150LCi Notebook

My monitor takes forever to load. It only started to happen recently, no more then a week or 2. Every time I turn on the monitor, the green light blinks several times. After it stops, the monitor just keeps repeating the ACER logo about 6 times, maybe more. Don't know what to do.


Most likely caused by defective capacitors in the power supply. This is quite a common problem.If you have some electronics skills, you may be able to change them yourself - look for bloated, otherwise deformed or leaking capacitors, typically ... Acer AL1912 19" LCD Monitor

Sony VAIO VGC-RB42G - No Power; Blinking green light on power


Try a different known working power supply on that computer, the green light on the power supply should be constant and not blinking. The green light on the motherboard shouldn't be blinking either but if its not getting the right voltage from the m ... Sony VAIO VGC-RB42G PC Desktop

Laptop crashes shortly after boot, power light rapidly blinks red.


Its late, so just to make sure I'm not brain-dead basically your laptop runs fine as long as its powered by the AC adaptor but dies fairly quickly while running via battery. \015\012\015\012This is very typical of a battery that will no longer hold a ... Medion (40010998)

Computer wont start up. Blinking green light in the back of tower


I've had that happen twice to my Vaio desktop and there was a very easy fix. I'm not a techie, but I found a recommended solution online when this first happened six months ago. I couldn't find the solution again, but I fortunately remembered the s ... Sony VAIO VGC-RB42G PC Desktop

D530s will not power up, odd blinking green LED on mobo


Ok, this is acting as if your MB is getting power but doing nothing with it. This very well could be a MB problem where something (unknown without looking at it) is fried. Just for grins, take the cmos battery out and let the pc sit for 1/2 to 1 hr ... HP Compaq Business d530 Small Form Factor PC Desktop

My d530 minitower powers off unexpectedly and red lights starts to blink on System's LED//


Hi Kindly let me know how many times the red light blinks \015\012\015\012\015\012\015\012Condition\015\012\015\012Code\015\012\015\012Service Actions\015\012\015\012\015\012\015\012\015\012\015\012Process ... HP Compaq d530 Convertible Minitower PC Desktop

Battery indicator? The third light bar, that I think indicates battery life is blinking red, but then briefly blinks green. I have my laptop plugged in, but it is still blinking red. Does the red blinking indicate the need for something else?


Hi there.Sounds like the battery could be faulty.The diagnostic procedures from the Dell User Guide are as follows: Total Power Failure When Using a Battery If an AC adapter is not connected to your computer, the compute ... Dell Latitude D600 Notebook

GREEN LIGHT KEEPS BLINKING PRINTER DON'T PRINT


Hi rudy, thank you for using fixya.when you said a green light was blinking was it the power light or another green light on the printer? i strongly suggest that you refer to these links to have it fixed if it is a blinking po ... PC Desktops

Power Green Light Flashing HP Desk Top PC m7250n


During a power outage their is a surge when power come back on the grid (surge can be caused by lighting strikes akso). This surge trips the internal procters inside the power supply to protect the Mother Board, hard drive, processor and fans and any ... HP Media Center m7250n (ED842AA) PC Desktop
  • Start your question with What, Why, How, When, etc. and end with a "?"
  • Be clear and specific
  • Use proper spelling and grammar
all rights reserved to the respective owners || www.electronic-servicing.com || Terms of Use || Contact || Privacy Policy
Load time: 0.1304 seconds