i got a call yesterday of a mitsubishi that had convergence gittering that goes away when tapping the TV, and eventually but intermittently, the picture will go, but the sound stays working. Well, i went out there yesterday to service it, and it was reeked with bad solderjoints, so i resoldered the main board. the convergence gittering went away, and had a nice picture. it stayed on for a good 30 minutes or so.
but i got a return call again today, saying the picture is still going black. she said the picture wont come back on unless the TV sits for awhile. She also mentioned that if the TV is left on with the sound playing, eventually maybe an hour or so, the picture will come back by itself.
See that sounds like bad solder, but i already got most of that.
the convergence has been fixed, but the picture still goes dead at random intervals, it could last an hour, sometimes 2, sometimes all day, then other times maybe 10 minutes.
I went over the board with solder, so i know that cant be the issue. unless there is another board i missed somewhere. I did see a couple of riser boards on the mainboard, but i didnt get to those.
Any ideas? anyone had this issue with this chassis before?