4.
Insert the lamp
The lamp used is manufactured from quartz glass and should be handled with care; always adhere to the instructions supplied in the
lamp’s packaging. Never touch the glass directly, use the tissue provided in the lamp’s packaging. The GX 9,5 lampbase is symmetrical in
construction. DO NOT USE UNDUE FORCE. In case of difficulty, re-read the instructions and repeat the procedure.
5.
Replace the lampholder assembly in its original position and refasten the two screws “
A
” which were previously removed.
9.2. Aligning the lamp in the optical path
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 maximise output, 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 by the 3 adjusters
A
,
B
and
C
located on the lampholder assembly. The lamp should be on, black-out and dimmer
fully open, and no colours or gobos selected. If the lamp is not correctly aligned, a hot-spot will be readily noticeable. Using the 3 adju-
sters in unison, you will need to bring the hot-spot to the centre of the beam (adjusters
B
and
C
) and then flatten the beam to maxi-
mum uniformity (adjuster
A
).
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 correct
positioning is achieved.
Horizontal adjustment
Adjsuter “
B
“ acts on a lever and spring assembly to position the lamp via a horizontal movement within the reflector; rotate it until cor-
rect 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.
A
B
C
Adjust lamp position
by turning screws
A
,
B
and
C
lamp
lamp
Caution hot lamp
Isolate electrically
before re-lamping
LO
OS
EN
T
O
R
E
-LA
MP
LOOSE
N
T
O
R
E
-LA
MP
ATTENTION!!
Each time you change the lamp, we recommend the following be carried out:
• realign the lamp in the optical path to avoid overheating dichroics and/or gobos .
• reset the lamp life counter (as described in section 8.7. Resetting the counter).
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English