LAMP ADJUSTMENT
The position of the lamp-holder is correctly adjusted at the factory but to insure
optimum performance fine adjustment will be necessary when the projector is
inst-
alled in its permanent site. Procedure is as follows:
IMPORTANT !
WHILST ADJUSTING THE POSITION OF THE 1220 LAMP YOU MAY BE EXPOSED TO
EXTREME HEAT AND BRIGHT LIGHT THEREFORE CAUTION SHOULD BE TAKEN
BY COVERING SKIN AND BY WEARING EYE PROTECTION
Before you begin to adjust the lamp, you will have to remove the top cover plate, (as
explained in ’HOW TO INSTALL THE ROBOSCAN PRO 1220’).
Once you have
removed the cover you will see a black switch positioned on the left hand side at the
mirror end just inside the casing. This switch is actually designed so that the lamp will c
u
t
off if, for any reason, the cover is removed, which means that while you are
adjusting the
position of the lamp this switch needs to be fixed down constantly.
A Point the beam at a flat surface. Using the controller set the Roboscan PRO 1220 to
produce a full power, full size white image (that is without gobos, filters and prisms and
with iris fully open and the dimmer on 100%). Focus to produce as sharp an image as
possible.
B Loosen screws 4 & 5 (see Figure 2) and move the lamp from side to side until the
brightest part of the image is in the centre. Tighten the screws.
C Loosen screws 2 & 3 (see Figure 2) and move the lamp forwards and backwards until
the image is evenly illuminated. Tighten the screws.
A correctly adjusted projector produces an evenly illuminated image with a sharp edge.
N.B. If you switch off the lamp allow it to cool for at least 10 minutes before switching on
again.
1 : Lamp-holder retaining screw
2-3: Screws for forwards/backwards adjustment
4-5: Screws for sideways adjustment
Figure 2
