Guys!
For an 8500 or 9500, locate R704, R804 and R904 on the vertical board, it is the board on the rear heat sink with green/yellow wire pairs plugged in. Replace those three resistors with 56kohm, 1/4 watt, 5% or better, and then match raster heights in the service menu; UTIL, 9, 0901, 3; reconverge if needed.
For an 8500 or 9500, locate R704, R804 and R904 on the vertical board, it is the board on the rear heat sink with green/yellow wire pairs plugged in. Replace those three resistors with 56kohm, 1/4 watt, 5% or better, and then match raster heights in the service menu; UTIL, 9, 0901, 3; reconverge if needed.