try not to mix areas in the tv chasing
- Lets get back: i hope the tv was doing fine before to start digging into it ( was it?) Was the tv complete tested before to make sure the buttons were working all and the audio was there. I mean each part of your tv has different solutions:
Think you have an animal with several heads now:
- the buttons in the panel (some working is good! some others can be replace and there it go all panel works)
- audio mute (maybe no signal and automatic mute is there. or maybe really audio is damaged. Leave it at the end is another area.
- Touch focus is the the program controlling convergence digitally talking. If the tv is not yet fix with the amplifiers then the problem still landed in another area not in the digital control.
Finally Start over! Get into de convergence and get your three tubes at least close to convergence (forget auto focus
now) three screens together or almost but three rectangules with white noise. No having GUI you mean OSD (i gess) (on screen display) channels appearing when you push that button or audio level line or menu letters (several buttons have to be touch to make sure of there is not OSD.
if the tv has not white noise the screens are without convergence. you are digging in a set with maybe 5 problems the three you told me plus the other posibilities im gessing and i hope you don't have. So slow down with the repair and try step by step. bye now.