If you promise not to touch the wrong thing, you can adjust the screen and focus knobs on the high-voltage transformer (what we call the flyback). Do you see the big red wire going to the CRT tube? That is the anode lead of the high voltage (around 25,000 volts). The thing that it goes to on the circuit board has 2 little knobs coming out the back of it. Try adjusting those (use a tool with insulated handle if you please) to increase the brightness and improve the focus. When the screen adjustment is all the way up and it is still too dark - then its time for a new TV.
100 views
Usually answered in minutes!
×