Dark PIP almost covers screen

Your TV is in Picture in Picture (PiP) mode. The small picture is the previous live input. The bigger dark area is the current input where there's no live source.

Find the PiP button on the TV remote or via the TV's menus. Press PiP a number of times to cycle through the options. Stop when the picture is the size you want.

Have a read of your TV manual. Stuff like this is detailed in there.

PIP is probably set to an input with nothing connected.

sounds like you might have PIP turned one (picture in picture) .. if there is no input hooked up for the PIP . you will just get a black screen ... you should be able to move that PIP around and change its size .. indeed turn it off .. look for a menu item called PIP .. select PIP off ..

Sounds more like closed caption is on go into the menu and if it is on turn it off.

PIP uses the signal from a second tuner to insert a small or split-screen image on the main image. Some TVs have two tuners but most PIP applications need a signal from a VCR tape or tuner (tuner must be digital since 6/12), a DTV box, or a cable box for TV programs. A DVD player can also provide a signal for PIP if a DVD is playing. However some TVs will not allow PIP if the signal inputs are through the HDMI ports.

I know that on my Protron the pip does not work for different TV channels, only for vcr or dvd. I can get pip from those sources.

There is a quick test you can do to determine if the problem is in your PIP module, using two 4.7uf/50v electrolytic capacitors. The PIP module plugs into two connectors on the main board. Remove the PIP module, and on connector VP on the main board (the 11 pin connector), use one cap to jumper from pin 7 to 9 (negative lead on pin 9); and use the other cap to jumper from pin 5 to 11 (negative lead on pin 11). If the PIP module is bad, you will now have video. The PIP module has surface mount capacitors that go bad. Just make sure you solder a small lentgh of wire to the capacitor leads to prevent them from shorting as they cross over each other. Just plug the wires into the socket no need to solder them.

Symptom: NO PICTURE
Cause: DEFECTIVE 3D/YC COMB FILTER
Symptom: DARK PICTURE
Cause: DEFECTIVE 3D/YC COMB FILTER
Symptom: DARK PICTURE
Cause: DEFECTIVE C724

Try hard reset first==Unplug ac cord overnight, then try again.Possible signal board trouble-- Practice visual acuity technique==look for CRT coolant leak on circuit board. Also suspect PIP PCB==can be by-passed by a knowledgible tech.

ok nimrod they have many types of settings about pip viewer,will you please give the brand and model?