I have a 10 year old 36" (Diag) Panasonic TV, model CT-36G22 or CT-36G22U. Over the past 4 years I have occasionaly seen the following problem. The picture changes from the nornal view to centered horizontal bar. Over the years I have learned that this only seems to happen within the first 10 minutes after I turn it on, meaning that once it warms up, the problem seems to go away. I have also noticed that when this problem happens, if I hit the front left corner of the stand that the TV is setting on, the problem goes away. Sometimes this requires multiple hits before it stops completely. I have also noticed that by wiggling the TV Cable where it enters the TV sometimes corrects this problem.
Do you think I have a cold solder joint on one of the circuit boards, or, am I trying to get too much life out of this TV, meaning, that it is simply time to replace it? Please e-mail me at email@example.com with your thoughts.
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To turn off the "stuck" pip on a Panasonic tv without a remote, turn off the tv. Then hold down the "Action" button on the front of the tv and press the power button. This will activate a reset and self check of the systems and voila! The pesky pip screen will be gone! This is on an approximately 10 year old regular crt "CT-xxxxx" series tv.