Trouble shoot your crt

Helpful tips

Find you screen problem below click on image to see larger picture

horiz lines No sync no vertical sync

vertical roll vertical linearity

dark screen screen burned


Does your crt look like this slide mouse across right image to see what a new tube can do

  1. horiz lines ----diagonal lines on screen adj horiz hold or horiz frequency
  2. vertical roll----pix scrolls from top to bottom or bottom to top -- adj vertical hold
  3. Screen burn---- replace crt VDM stocks most sizes of monochrome tubes and some color