Television and Home Theater

I have  a Sharp CD-DP2500 Mini Compact System that I am unable to use

When I turn it on it come up with a message "PROTECT" on the screen. Can someone help me. I am unable to play a cd or even listen to the radio.

What

do

I have a JVC Tv Model AV27-bm4 that is 12 years old.Problem is no picture only line accross center.Has sound.Set worked fine before this happened.I don't have a schematic and am not familiar with what the different parts are or where they can be found on circuit board.I have tried to do some research and i think it may by the IC or IF.Can anyone please help.Repair shop wants between $80-$120 to repair,(does not pay).I can buy a new one for $188.

I have a syncmaster 910MP and do hot have any instructions  to receive the upper channels (above channel 13).  Does anyone understand this problem and can give me advice on receiving above channel 13.