Toshiba 1550 Service Handbook page 21

1.5 Light Distribution Adjustment
(1) Remove the glass holder (2 screws) and then
the original glass.
(2) Move light-distribution adjustment plate 1 -
3 in the direction of the arrow (@), depend-
ing on the amount of uneven light distribution.
Adjustment should be made so that the im-
age becomes darker evenly.
(3) Move light-distribution adjustment plates 1
and 2 in the direction of the arrow.
(When the rear side is darker)
(4) Move light-distribution adjustment plates 2
and 3 in the direction of the arrow.
(When the front side is darker)
As a result of the above adjustment, there is a possibility that under-exposure or over-exposure may
occur; make exposure adjustment if necessary.
1550 ADJUSTMENT
Light-distribution adjustment plate 1
Light-distribution
2
adjustment
plate 2
Light-distribution
3
adjustment
plate 3
1 - 18
1
Direction of movement
Direction of movement
Oct. 1995 © TOSHIBA CORP.