My panasonic crt tv stuck on standby mode only

SOURCE: hi have recently bought secondhand panasonic CRT

power supply faulty

SOURCE: TV Stuck in Demo mode

No sorry your going to need to get an original replacement, or maybe you can borrow one from someone for a short time.. Please rate this answer

SOURCE: TV Stuck in Demo mode

I had the same problem and tried everything. Nothing worked, so I started randomly pushing and holding buttons ON the TV until one combination worked! My Panasonic has two buttons on the TV set for adjusting the picture. Hold down one of them and simultaneously hold down the Channel Up button. If that doesn't work, try the same procedure with the OTHER picture adjustment button. It worked for me. Good Luck!

SOURCE: TV off...cant get out of standby mode

Sounds like the connections on the CRT Socket or CRT circuit board. Remove back and check connections.
You could also have buildup on the cathodes of the electron gun (internally) to redimie you must have set in operation and viewing video. Tap the neck of the tube gently while watching for the colors to change until they Stabileize, this is best seen whith the color turned off.
Good Luck