- If you need clarification, ask it in the comment box above.
- Better answers use proper spelling and grammar.
- Provide details, support with references or personal experience.
Tell us some more! Your answer needs to include more details to help people.You can't post answers that contain an email address.Please enter a valid email address.The email address entered is already associated to an account.Login to postPlease use English characters only.
Tip: The max point reward for answering a question is 15.
Look for bad caps first and main AC fuse, yours is very similar to VA702. If you are going to DIY 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 VIEWSONIC monitors to get some ideas what to look for: http://s807.photobucket.com/home/budm/allalbums Post back what you see inside so we can guide you further and it will help out other people in the future also.
(Please be advise that if
you don't have the knowledge, the proper skills and the right tools to
open the back cover of your monitor and replace its part...don't risk
Otherwise, bring your unit to a credible technician and avail of warranty if there is any.....) If you have guts.. then do the following steps..
You said your monitor will blink but no picture display... well, there are possible reasons why this problem
Open the back cover of your monitor..Check the power supply section for possible loose
connections and blown capacitors.. Resolder any loose terminal connection on the pcb. Check for any blown capacitor, replace the capacitor with exact value, and also replace any bulging capacitor..If you have successfully replace the parts you can try to turn it on and connect the vga cable in it to the video card of your computer. Turn on also the cpu, if the monitor led turn green and the display came out..that fixed it.
2. In case you have successfully repaired the power supply section and the led of the monitor stays green.. then the problem will be in the inverter board section....Turn off your monitor... open the back cover...on the inverter board section.. check and replaced burnt or overheating high voltage transformer..if one or more of this overheats, it is enough to affect the supply current from the power supply section and that may cause to blow your capacitor...If the ballast transformer is working fine the last thing to check is the backlight inverter (the light that illuminate causing display in your monitor) Replace any busted lamp.. that should fix the black screen on your monitor. ..
If you find this information very useful..please be kind to rate this solution and vote for this on the help below...thanks..
Much appreciated if you rate this help...thanks...
Hi! The reason why the button of your monitor flickers is because the 12 volts output supply for your inverter board is not stable.. If you have the skills and the right tools for this, Here's what you need to do 1. If your monitor comes with a power supply adapter, open it..check and replace blown capacitor with same value.. 2. If your monitor is using a cable power cord..open the back cover of your lcd..on the power supply section.. check and replace blown capacitor. 3. Check and resolder the terminals for fixing possible loose connections. 4. On the inverter board section...check and resolder the terminals for fixing possible loose connections, the high voltage inverter usually loose connections when overheat. 5. Other things to check if step 1 to 4 did not resolve your problem. Check and replace burnt high voltage transformer.. Check and replace busted backlight inverter..
It is usually the Large Value Caps around any heatsinks etc. in the Power Supply.. I usually simply replace ALL Large Value Electrolytic Capacitors, with same or better temperature ratings. This often fixes any problems.