My screen appears to be zooming in while watching it. it cuts off the top and bottom of the screen. then it will go back to normal it is an older tv but would like to get it fixed if for nothing else for kids to play video games on. Thanks for any help with cause or how to fix this i do have experience with some electronics if it needs a board or something replaced i could do it myself if i can get the circuit board.
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 100 times.
Re: panasonic projection tv 51"
The problem you're describing is what we refer to in the industry as blooming.
It's usually caused by a capacitor problem and not something you can test without a cap analyser. It's probably in the voltage regulation circuit or SMPS (switch mode power supply). In those circuits you'll have a number of caps and will need to test their equivilent series resistence (ESR). Replace those with a high or open value and it should solve the problem...
It's also not that expensive for a qualified shop. I'd strongly suggest that over spending several hundred for a could cap analyser.
- 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.
Press the "Aspect" button on the remote until the picture looks appropriate. You are probably trying to display a 4:3 ratio channel on your 16:9 ratio TV. You are probably viewing it in "zoom" mode, which does not stretch the 4:3 ratio video, but enlarges it until it fits the width of the screen, which zooms part of the video off the top and bottom of the screen.
When TVs first appeared, they had an picture ratio of 4:3, which matched that of most movie screens at the time. Terrified of losing their business, movie studios struck back with "widescreen" films using 1.85:1 or 2.35:1 ratios. When widescreen TVs started appearing, they emulated those same ratios, but many TV shows (and some movies) were still in 4:3---and we were eventually left with a bit of a mess. Canny manufacturers, including LG, have solved the problem by allowing you to adjust the picture ratio on the TV to fit the program you're watching. If it's not set properly, however, your image will look distorted or cut off. A quick bit of troubleshooting can fix the problem easily.
Press the "Menu" button on the remote and scroll down to the "Option" title (it should be second from the bottom ). Then select "Aspect Ratio." You should see a list of ratio options. You simply need to pick the one which fits the show you're watching.
Choose the 4:3 ratio for older movies and TV programs. You should see a pair of bars on the left and right side of the screen. (That's okay: the bars keep the program in the same proportion in which it was filmed.)
Select the 16:9 ratio for widescreen movies and for more recent shows to match their longer width. For some movies, you may see black bars and the top and bottom of the screen. Again, that allows the movie to be shown in the manner it was filmed.
Pick "Set By Program" to automatically switch the LG TV between 4:3 and 16:9 to match whatever show is on at the time.
Select "Horizon" to horizontally expand the image onscreen. It will fill the whole screen---eliminating the black bars to the left and the right---but it may look distorted.
Use the "Zoom 1" option to zoom the image forward. That will eliminate the black bars at the top or the bottom of the screen, though you will cut off the edges of the image.
Pick the "Zoom 2" button to select a midway point between "Horizon" and "Zoom 1." The picture is stretched, but not as much as with "Horizon," and fills the screen, but doesn't cut off as much as "Zoom 1."
Use the "Cinema Zoom" button to enlarge the picture to fit the screen. This option allows you to adjust the proportion to your liking, rather than use the set proportions of the other aspect options.
Exit the menu when you are done and watch your programming normally.
Convergence it dead.Convergence ICS and all of it resistors must replaced to solved this problems.Know how to solders?Buy a convergence kit at Tv repair World.com,Tvrepairkits.com.Shop well cost u $300 for parts and labors.
Look up your user manual, it sounds like your zoom feature has been activated to the max. I have a Zenith backlit LCD TV and it has a zoom feature you control from your remote. You could open up your on screen menu and find the place to reset the TV to factory settings that should clear up the problem.