The power light comes on, red then when you push the butten the green light comes on, and you can hear a click when you do this
This model has a history of power supply problems. Depending on your level of expertise on electronic repair, you can repair the power supply or replace it. The most common repair is to replace the bulging power supply capacitors.
SOURCE: Viewsonic N3250W no power light ?
check out this website, it's got everything you need. I have to give all the credit to Alain, a brilliant guy in France who dug in and solved the problems. he gives instructions for the professional to fix the problem, but he also gives the sources for the power supply board to be purchased and for the little chip that causes most of the problems. I decided to take a risk and save some money and bought just the chip for $20 and very carefully soldered it in after removing the old one. The tv is fine a month later. The board comes out with no soldering, just some quick connectors and the back of the tv will come apart after you remove all the screws and the base by gently prying the back case from the front bezel along the sides of the tv. if you look closely, you will see the small cavities to pry from.
here's the website:
http://pagesperso-orange.fr/alain.mionnet/enii3210j.htm
SOURCE: No picture, sound works, but along with high-pitched noise
My guess is that you might have the yellow (video) cable plugged into an audio input on the TV. Make sure that the yellow cable is plugged into both the video out on the DVD player and the video in on the TV. Most of these connections are color coded.
As a diagnosis, try changing the TV input (using the remote) and let me know if you still get the buzzing on the other inputs. If no, then, it's most likely your RCA connections. If yes, it's another problem.
SOURCE: ViewSonic TV sound but no picture
If an LCD TV has sound but no picture do the following:
Use the source button to ensure that source is not set to the wrong input.
Try unplugging power cord for ten minutes, to ensure it is not a setting problem.
Check all the video cables at the back of TV.
Check Light /Color settings.
If problem persist and does not depend on external receiver or settings, then it is likely an internal fault.
If it has sound but no picture then one of the following parts is faulty, and must be tested and replaced:
Theinverter is the high voltage board that provides variable power to thebacklight lamp. This is the most common. When inverter is faulty youcan get no picture, or a very dim picture that can only be seen bypointing a torch light with a 45 degree angle on the LCD surface fromvery near distance.
The inverter must be tested by reading voltages with a multimeter.
The LCD ribbon cable/LCD display and connectors.
Thisis quite uncommon, but happens. If the TV had been hit or moved the LCDcable may have slipped out, or the LCD connector may be damaged.
The LCD controller board.
Thisis the board that controls the video signal, it is difficult to test,as there is need to read determined values on IC pins. To test thisboard you need to purchase a service manual and follow thetroubleshooting diagrams on service manual.
Input/Output Signal boards.
This are the boards where youconnect the video and audio cables, if a signal board is defective,then you may get no picture on particular inputs located on faultyboard.
If under warranty contact the manufacturer ringing the number on the user manual.
If you want to repair at your own expenses, just locate any good qualified repairer.
If you want to DIY you find parts here,
All: Appliance parts, electronics parts & more from PartStore.com
Encompass Parts Distribution
LCD/Plasma Electronic Replacement Parts: Plasma & LCD TVs, Appliances |
SOURCE: My Viewsonic N4060W 40
Look at the power supply first since it is easier to get to, look for burnt parts, bad capacitors, etc.
http://en.wikipedia.org/wiki/Capacitor_plague
Please post back what you find. If the tech installed a used power supply, it may be bad also. 3 years are typical for capacitors to go bad.
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