Vidikron Model 85 Projection Television User Manual


 
Maintenance and Troubleshooting
Vidikron Vision 85 Owner’s Operating Manual 75
PRE
L
IMINAR
Y
Image geometry is incorrect. Incorrect aspect ratio
selection.
Image height may need
adjusting (Vision
85/CineWide only).
Select the aspect ratio that
best matches the source
image and screen size (refer
to
Table 4-1).
Adjust displayed image
height (refer to Display
Device on page 61).
The projected image is
trapezoidal in shape.
The projector is not
perpendicular to the
screen.
Adjust the projection angle.
The projector will not turn
back on after it was powered
down, or the image disappears
during operation.
The projector will not turn
on for two minutes after
power-down, to protect the
lamp.
The lamp has failed or
reached its usage limit of
2000 hours.
Wait two minutes until the
LED at the front of the VHD
Controller turns red.
Replace the lamp.
Table 5-1. Troubleshooting Chart (continued)
Symptom Possible Cause(s) Solution