When I turn on my televison I get a blue screen and it says no rgb signal. I have no picture and no audio.

Do you mean No RGB signal RGP is a single name by the real girls project. RGB is a source setting, just change the setting to hdmi or freeview.

A blue screen indicates no video signal.

RGB means Red,Green,Blue it is an old system for supplying video signal to a screen..

Purple Panasonic PC>TV Problem:
The VGA cable uses three primary color RGB channels.
Red, Green, and Blue.
The picture is made up of pixels or dots arranged in a grid along the "X" horizontal axis and "Y" vertical axis.
The computer mixes the intensity of each color channel to create a unique color per pixel.
All RGB at 100% creates white.
R+G creates yellow.
R+B creates magenta, ie purplish.
G+B creates cyan.
So a purplish tint sounds as if your Green wire has no signal, which may indicate a faulty VGA cable or VGA socket.
Put another way, (R+G+B)-G=R+B=magenta.
So try another VGA cable, spray all socket pins with "Servisol " or similar contact cleaner.
0%<--------->100%
Cyan<------->Red
Magenta<--->Green
Yellow<------>Blue
All 0%=Black; All 50%=Grey; All 100%=White.

Televisions covered: all Projection with yellow picture, but not Projection TVs with a yellowish tint surrounding objects in a nearly normal picture.

Yellow = red + green
normal picture = red + blue + green (RGB). See illustration.



Fig. 1 Additive color mixing in an RGB monitor, or RGB Projection TV.

The circuitry powering your blue output, or the blue light engine itself is starting to fail.

Operating Theory:

The lamp module shines a bright light into the optical unit; there are a series of lens and baffles, and at the top of the light engine, a lens puts the picture into a mirror which is reflected onto the screen; All video and color is processed thru the light engine. Blue most commonly fails first, leaving a yellow picture.

Hi my name is Roety,
I can help you with your issue ,
First of all lower the blue and any other screen controls or service menu settings back to where they were or lower.
Then see if it powers on again with a picture.
If it still shuts off, unplug the Blue CRT circuit board and see if it works.
If it does work the blue CRT may be shorted .
Your problem may have been corroded CRT pins.　
　
　
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Thanks

I’m happy to help further over the phone at https://www.6ya.com/expert/eric_ab7c09ec01841771

motherboard needs replaced, to test take a flashlight TV on and shine on screen from above at an angle, do you see a faint image, replace MB

If all connections and the tuner have the same issue, you either have a power supply issue or a bad digital board.

My panasonic Tv pic suddenly turned into a blue color I can't see the pic any more just can hear the audio.....any solutions????