11. LAMPING THE FOLLOWSPOT
• Plug the follow spot to the electronic PSU. Please note that each followspot has been
factory tested with relevant PSU. Both units are recognized by a serial number (on the
outer box, on the units and on the front cover of the instruction manual). Make sure you
match each followspot to the relevant PSU.
• Connect the PSU to your power supply (90V – 260V)
• Turn to the right (1/4 turn) the on/off selector on the PSU (fans will start working).
• A RED LIGHT comes up from inside the ballast (visible from the ventilation slots beside the
on/off selector
• WAIT UNTIL THE RED LIGHT TURNS GREEN (3/5 seconds – BUT NO LONGER
• Turn to the right (1/4 turn) the on/off selector positioned at the back of the luminaire
(lamp is on).
The lamp will only switch on once the green light in the ballast is on. Should you have waited too
long the PSU will not have found the lamp when trying to strike it. The ballast will try for 10 times
and then stop, assuming no lamp is inserted after which the lamp will not go on. In this case
please switch the PSU off and start again
12. LAMP ALIGNMENT
For an optimum performance of the followspot, lamp alignment must be checked and performed
each time a new lamp is fitted or an old lamp is replaced. Please proceed as follows:
• Switch on the unit and project the beam on a flat surface (a wall, for example) at a short
distance (0,5m approximately).
• Completely de‐focus the zoom so that you can see the lamp or its filaments projected on
the surface.
• Close the dowser to a slightly bigger size than the height of the lamp. You should obtain a
circle of light including the projection of the lamp.
• If the lamp is not exactly centered in the circle, set the alignment by loosening/tightening
each one of the chrome M4 screws positioned on the left‐hand side of the lamp‐house
near the lamp‐holder panel.
CAUTION: adjust the screws very slowly in order not to cause the lamp bulb to touch any
of the components of the optical system as this would cause both the lamp and the lenses
to explode.
Tel. +39 0376 771 777 – fax +39 0376 772 140 – email info@ldr.it – web www.ldr.it
LDR TANGO 1500msr FF User's manual – 1.1
BEFORE OPENING THE FIXTURE, WAIT FOR 10 MINUTES
AFTER THE LAMP HAS BEEN SWITCHED OFF
Luci della Ribalta srl, Via Berna 14, 46042 Castel Goffredo (MN) Italy
CAUTION
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