Aligning the lamp in the optical system is achieved via the 3 adjusters at the rear of the projector. This procedure should be under-
taken to properly align the lamp in the optical system and to avoid the possible overheating of the internal components 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 (
B
and
C
) to bring the hot spot to the centre of the beam. Use the third adjuster
(
A
) to flatten the beam to maximum uniformity.
vertical adjustment
Adjuster (
C
) acts on a lever and spring assembly to position the lamp via a vertical movement within the reflector; rotate it until cor-
rect positioning is achieved.
horizontal adjustment
Adjuster (
B
) 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 (
A
) moves the entire lamp assembly axially within the unit; rotate it until correct positioning is achieved, resulting in a flat,
even beam.
NB: It is extremely important that a uniform beam spread is achieved. Avoid creating a hot-spot in the beam
as this may cause overheating of internal components, in particular the glass gobos.
D
D
D
D
12. Aligning the lamp in the optical path
15
Summary of Contents for ISPOT 1200 EB
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