The loss of power was do to a blown fuse. could not access it through the small opening near where the power cord went in at the back of set.. carefully took the back of just far enough to access the fuse and replaced it. Working fine.
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Press the TV button on the remote, make sure the TV is plugged in, check the electrical outlet to make sure it is live if the TV does not turn on. If these actions do not solve the problem, press the Power button on the front of the TV. If the TV turns on, replace the batteries in the remote control and reset it by pressing the number 1 button for 60 seconds. If necessary, reprogram the remote.
Unplug the TV for two minutes, then plug it back in if the buttons on the remote don't work. Make sure the remote is in TV mode.
Change the settings on the sleep timer if the TV turns off unexpectedly. Unplug the TV and wait five minutes before plugging it back in if necessary.
Check your antenna connections and cables if the sound is okay but the picture is poor. If all the connections are good, adjust the sharpness function.
no remote but tv was working with front power key? unplug from ac outlet and plug back and listen for any type of indication (noise or chirp) that something energizes inside if theres nothing then suspect a power supply problem, main fuse blown, shorted low volt rectifiers other components could be at fault.
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.
The high pitched sound is probably comming from the power supply, possibly due to its trying to drive voltage into a shorted component in the high voltage deflection circuits. You may be lookng at about a $250 repair. If it has been used a lot and its picture quality didn't knock your socks off, I would replace it with a HDTV set. A 37 inch LCD from Toshiba might be a good place to start and should do nicely for you.
Should unplug the unit from the outlet first then after 5 minutes plug it back in,if this does not work it most likely needs service specially if you lost complete power in the house or if it was raining with lightning.