The lower channels 2-7 have wavy sort of static like lines that go across the entire screen. The picture is still visible, but annoying. The rest of my cable channels (8-65) are fine and clear. I looked through your database, but didn't seem to find anything, in the 10 pages I went through, relating to this problem. I was told it may be the cable box (don't know the correct name) inside the TV. Is there a website, that has good diagrams, I can buy this part from? My tv is a GE Model 25GT538.
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It sounds that the main power supply section to your TV has the fault. The horizontal thik lines that appears crawling down across the screen should be of video 'HUM'. Have you replaced the main filter capacitor at the power supply section? If not, replace it along with the main rectifier. The AC power is rectifed by a bridge and applied ot this main filter capcitor. It will have a capacitance value between 120 to 350MFD 450VDC. Check this section. Measure the rectifed DC voltage acorss this main filter capacitor. It should be around 350VDC, if your home power supply line is 220VAC. If it is 110AC, this DC voltage will be around 165VDC; and it should be. If rectified DC voltage found lower than the input AC voltage, replace the rectifier bridge. In some sets, this bridge section have four diodes. Some other circuits, a bridge rectifier stalk may be used.
Picture problems are surely among the most common technical issues experienced by home TV viewers. Such problems may manifest themselves as pixelization or frozen pictures, intermittently flashing pictures on one or more channels, static or audio degradation, or channels that are missing altogether. To address these problems, you can always contact the technical support department of your cable TV provider and have them walk you through troubleshooting steps, but it is wise to learn how to fix problems like this on your own without consulting any outside help. Doing so can save you lots of valuable time and money in the long run.
1.Reset your cable TV equipment by unplugging the power cords of any digital cable boxes/DVRs you use in the home. Count a full 30 seconds and plug the equipment back in. After allowing the device enough time to complete its boot cycle, check the picture again for any improvement. A cable box in need of a reset is by far one of the most common causes of many different picture degradations, so this is a necessary first step. 2.Check the audio/video connection cable or cables that attach your cable service equipment to your TV. Loose or malfunctioning cables are also a very common cause of picture degradation. Secure any cables that may have come loose and replace any visibly damaged cables. If you think the cables may be failing, you can temporarily test them by plugging another audio/video connection cable from the cable equipment to the TV and checking for any improvement. 3.Scan through your entire channel lineup as well as all the input channels on your TV. This will help determine the scope of the problem and how to most effectively troubleshoot the issue further. If you see the vertical lines on only one or a few cable channels, the issue is much more likely with the broadcaster or your cable provider, and you will need to report the issue to your provider. If you see the vertical lines on all channels and all video inputs, it is more likely that the TV's picture components are beginning to fail, and you will need to have the TV serviced or replaced altogether.Thanks for using FixYa, hope this will help your problem. josie
some type of electrical feedback try upgrading your cables or tightening the ones you have. what might work best is a line conditioner i filters out any feedback you may be getting and cleans your power supply they cost from 50.00 and up best buy or circiut city both carry them or online as well
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.
Did the TV get pink with the wavy lines all at once, or did it start out gradual? If all of a sudden, then a defective part on the CRT control board or the picture tube itself could be going bad along with some components in the video section of the set. Probably not a cheap and easy fix I'm afraid.