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I believe you have a shorted transistor on the crt board on the back of the picture tube which should be Q5104. Let me tell you my experience with these Zenith's The original problem is the picture tube shorting out and caused this problem. If you replace the transistor the same problem could arise again because of the tube and it could even knock out the main board power supply. I have seen this happen. And I have put in the transistor and no problem. You can get one at the Radio Shack by taking the bad one out and get them to cross reference it for you. All Zenith transistors have a prefix number (not on the transistor) which is 121- (with the dash!) and the number on the transistor The new one must go back in the way it came out! I recommend someone with electronic soldering and desoldering experience. Hope this helps
go into menu turn color off see if you have a black and white picture if not adjust red,green, and blue screen drive on controls in back of tv you have red, green, blue it will have focus /screen controls cover each tube do one at a time blue focus and screen drive adjust to clear blue picture do all 3 tubes, then adjust them to where you have a black&white picture once this is done turn color controll back on.Thank You for using FixYa and Have a Nice Day.
I SPECIALIZE IN ATARI AND CAN NOT FIGURE WHAT COULD BE WRONG. I WOULD ONLY GUESS IT TO BE THE T.V OR ON THE WRONG CHANNEL. THERE IS A CHANNEL SWITCH ON THE BACK OF THE ATARI DECK.
IT COULD BE SOMETHING ELECTRONIC INSIDE THE DECK, AND I AM NO ELECTRICIAN. MY BEST GUESS WOULD BE TO FIND ANOTHER DECK. THE A/C ON 9 VOLT SHOULD WORK. THE FACT THAT YOU GET A PICTURE IS WHAT CONCERNS ME. AUDIO/VIDEO ARE ON THE SAME WIRE. IT MUST BE INTERNAL. IF YOU HAVE ANY OTHER SYSTEM TO TEST WITH THOSE ADAPTERS, WOULD PROVE THEY ARE GOOD. OLD NES?
I think you had an arc in the high voltage circuit which zapped the blue drive circuit to the picture tube. This could have been caused by the high temperatures the your set was subjected to.
You didn't mention if you saw fine white diagonal lines running through the screen from top to bottom. If so, you likely have a shorted Picture Tube which is not usually fixable. If there are no lines seen running through the screen, then it is possible the High voltage transformer which also has a screen voltage and focus control built in that could be bad. I would expect the cost of that part to be about $100, so the repair cost total could approach that of a new set I would guess.
Nope Not unless you replace the tubes with the burn in them You have to take off ther front screen and look into the lens while tvs on and you will see what tube is burned worse. Sorry!!! but I have heard of folks equilizing the burned tubes by taking a solid color one at a time (red,green and blue) and keeping on only one color on for 4 to 6 hours one at a time and them all on at a time for a solid white and have seen some pretty good results.. Good Luck