User`s guide

Hot Issues Black Screen, Distortion, or Misconvergence Caused by CRT Arc-
Black Screen, Distortion, or
Misconvergence Caused by CRT
Arcing (6/97)
Issue: On a limited number of AppleVision 1710 monitors,
an internal arcing within the cathode ray tube (CRT) may
reset some control values in the monitor's internal
microcontroller chip. This can cause the screen to go blank,
cause some geometry distortion, or cause the convergence to
become intolerable.
The monitor is most likely to experience this problem
within the first few hours or days after installation.
However, it is possible to have this problem anytime during
the life of the product. CRT arcing is normal and expected on
all CRT-type monitors.