Re: New success: Banging TV brings picture back. Any insight?

Brian wrote:
I made a post on the 6th about a new to me panasonic TV having a picture problem, with the picture fading out and back in. Thanks to all who replied. It's black video for the most part but I believe I found a way to bring the video back. If I bang moderately on the top of the TV (from above the glass to the back) I was able to successfully get the picture back three times within two minutes. Two times the picture faded right back out after a few seconds and the third time it's been on and perfect for about 10 minutes now. When it works then fades out, it fades out without being touched at all so it's not due to a physical problem like a loose item.

Does anyone have any thoughts? Does the banging on the top offer any new insight to the problem along with my other post? Again, there were no apaprent problems I could see inside regarding solder joints. I ensured that all the wiring connectors were securely plugged in.

What is my bloody problem with this! I can't throw it out because it clearly does work still! I just want to be able to get it to stay working!

Aloha
Brian




It is probably a cold solder joint, tiny crack in a board or similar loose connection in the filament circuit. There should be 2 pins on the CRT marked "heater" or "filament"
Follow these from the CRT to the board. Follow the traces on the boards to their source and all associated components.
You may have to search with a magnifying glass or gently flex the board or tap components with an insulated prod such as a screwdriver handle with the power on.
Be careful, be safe, and good luck
.

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