Question about Televison & Video
First I had a problem with the vertical deflection. There was a single thin line on the screen. I replaced U4501 but there was no change in the picture. I replaced R4511 the picture returned but I had thin lines across the top and the on-screen display is rolling. I replaced C4505 now the lines are gone and the on-screen is still rolling. I am using Photofact 3802. Any pointers on how to resolve the on-screen display rolling?
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Posted on Jan 02, 2017
SOURCE: help problem with picture
This sounds like theres a capacitor somewhere in the vertical sweep circuit. You can replace the capacitor if you have a soldering iron and some electronic experience on trouble shooting tv sets. It is most likely from what you described the capacitor off the high voltage transformer that supplys the b+ to the vertical output IC. A repair person should be able to give ya a ball park on the cost as Im thinking somewhere from 85 to 135 Bucks depending on if theres only one cap goiung bad or could be a couple or more starting to dry up. So its your ball now .. Do you wanna spend that much to repair the set Do you like the set? is the set over 3 to 5 years old? Its up to you. Good Luck
Posted on Jun 03, 2006
If the double image is in a differant color, then its your convergence IC's that need replacement. This is not a job for the unexperienced person. If you have no electronic repair experience, please seek out a pro to assist you in this repair. There are two IC's, about 3"X5" that are black in color and have STK with several numbers following them. Good Luck PS please dont forget to rate this thread.
Posted on Nov 03, 2006
SOURCE: thin vertical line
What you have described is definitely some form of Electrical Interference. Interference can come from a variety of causes. Is the Cable Inputting the Cable Box close to some High Voltage Electrical Lines? Or Are you located near some Electrical Power Station? Or A Police station, where the Radio Transmitter of the Police Station causing the Interference? As I said, there are a variety of reasons. Also, Try to check if the connector is loose at the rear of the Cable Box, or at the rear of the TV. You will have to eliminate every possibility reason. Wish i could help further.
Posted on Jan 25, 2007
Since Intermitant always inspect the vert ckt for bad solder connections. If not replace the output IC they're cheap and most likely the problem If you still have lines on the top or bottom I would replace all of the electrolytic capacitors in the vert ckt also. Without much test equipment rebuilding the whole little ckt is the best way to go.
Posted on Apr 24, 2007
This set should be taken back for exchange under warrantee
Posted on Oct 06, 2007
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