Question about Standard (CRT) Televisions
1. The TV screen is fine until it warms up. 2. After a minute or so, the screen goes blank or there is a thin picture line that goes across the middle of the screen. 3. The screen will pop up occasionally after vibrations or pounding on it. 4. I thought it was the antenna connection in the back of the T.V. Wiggling it tends to make the screen come back for a while. 5. I wiggled the back of this too many times. It is now broken, but I can put it back with glue, but it still continues to black out. 6. I have tried taking the T.V. apart & blowing it out with compressed air. This seemed to help for a day or 2. The problem kept coming back. 7. It seems like there is a loose connection. 8. I do not want to buy a new T.V., due to the digital signal becoming standard in the next few years, but I also do not want to spend a lot of money on a repair. Any suggestions, Ginty
Hi, Very often, the vertical IC is the culprit. What happens is due to excessive heat, the solder joints of the IC's pins gets undone. More often than not, re-applying heat through a soldering iron would solve the problem. It may also be a wise move to re-solder surrounding components and to check for any loose connections. Pls be reminded of safety precautions when working inside a TV unit. Hope this be of help. Post back how things turned up or should you need additional information. Good luck and kind regards.
Posted on Sep 28, 2007
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