17
Aligning the lamp in the optical system is achieved via the 3 adjusters at the rear of the projector. This procedure should be
undertaken to properly align the lamp in the optical system and to avoid the possible overheating of the internal compo-
nents due to the incorrect focusing of the beam onto components not intended to be exposed to this.
alignment procedure
Alignment is effected via the 3 adjusters
A
,
B
and
C
operating in conjunction with each other. The lamp should be on,
black-out and dimmer fully open, and no colour filters inserted.
If the lamp is not correctly aligned, a hot-spot will be noticeable. This is a function of the lamp’s positioning. Use the two
adjusters (
A
and
B
) to bring the hot-spot to the centre of the beam. Use the third adjuster (
C
) to flatten the beam to maxi-
mum uniformity.
vertical adjustment
Adjuster (
B
) acts on a lever and spring assembly to position the lamp via a vertical movement within the reflector; rotate it
until correct positioning is achieved.
horizontal adjustment
Adjuster (
A
) acts on a lever and spring assembly to position the lamp via a horizontal movement within the reflector; rotate it
until correct positioning is achieved.
axial adjustment
Adjuster (
C
) moves the entire lamp assembly axially within the unit; rotate it until correct positioning is achieved, resulting in
a flat, even beam.
lamp
C
lamp
lamp
LOOSEN
TO
RE-LAMP
A
d
ju
st
la
m
p
po
siti
on b
y turning sc
rew
s
A
,
B
an
d
C
C
a
u
ti
o
n
: h
ot
lam
p. I
solate
electrically
befo
re
re
-la
m
p
in
g
LOOSEN
TO
RE-LAMP
LOOSEN
TO
RE-LAMP
13. Aligning the lamp in the optical system
English
