An expert who has achieved level 3 by getting 1000 points
An expert that got 10 achievements.
An expert that got 5 achievements.
An expert whose answer got voted for 500 times.
Sounds like you may have gotten a pwer surge and blew out the regulator in the set. If you know how to trouble shoot regulator curcuitds then it could be as simple as the str type regulator. If you dont then open the set and see what module the set has it would start with a 9-something as it should be inside the back cover and then contact http://www.tristatemodule.com and see what they charge to repair the entire pcb or the exchange of the module. As Zenith sets are made to be repaired in house by quilifyed repair stations IN hOUSE. Good luck to ya.
- 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.
Before you replace the power board, there are a few things you can try to troubleshoot the issue with your Westinghouse WD55UW4620 TV:
Adjust the picture settings: It's possible that the picture settings on your TV have been accidentally adjusted, resulting in a dark picture. Try going into the TV's menu and adjusting the brightness, contrast, and other picture settings to see if that helps.
Check the backlight: The backlight is responsible for illuminating the pixels on your TV screen, and if it's not working properly, it can result in a dark or dim picture. You can check the backlight by shining a flashlight on the screen and seeing if you can make out any images. If you can see images, then the backlight is likely the issue.
Check the cables: Make sure that all the cables connecting your TV to external devices are securely plugged in and not damaged.
If none of these troubleshooting steps work, then it's possible that the power board is the issue. In that case, replacing the power board may fix the problem.
Hello David It sounds that the back light inverter board, and back light CCFL lamps to your TV need to be checked. It will be best to contact any service technician, because to check its back light CCFL lamps, you must disassemble the display panel, a very skilled work indeed. If you are sound in electronics, you can check it. If you wish to know more http://electronicshelponline.blogspot.com/ check this link. It has details. Pull up older posts there by its left side bar, or see it in 'Timeslide' option.
The tv LED light on the tv front bazel frame face have the word "LAMP" light up or blinking?Yes.The tv projection lamp been inside this tv like 1 1/2 or 2 years already,tv used it everydays like 4 or 5 hrs daily?Yes.Than the tv projection lamp life are over,that why it dim picture tv now must have it tv projection lamp to be replaced.
You don't say anything about the brand, but most have a menu or setup button on the remote (and TV) which give an on-screen display of functions available. You should see one for picture adjustments. Perhaps the projection bulb is getting old and dim. This is another possibility.
There should be a setting in the menu of the TV to turn off the auto dim feature (used for adjusting the brightness of the picture depending on ambient room lighting) I don't have a Sony LCD here with me to walk you through the menu settings, but I am certain it is there somewhere. (Chased this issue for the wife who had the same displeasure you're having)
If this is a CRT-based TV and it's been played most of the time, you may have a bad picture tube, especially if strong red colors bleed to the right. CRT's dim with use, unlike LCD or plasma. But it could also be trouble in the video circuits - none of this falls into the DIY category, unfortunately. High voltage involved, unless you're comfortable around it and want to try turning up the screen controls inside the TV. If you do, let me know - but "no response at all" from the external adjustments points to a more serious problem.