Replacing The Lamps - NJD Electronics SPECTRE User Manual

User Guide Spectre
The Spectre must not be connected to the output of a Dimming
pack. This is not necessary, as the Spectre contains its own
dimming circuitry.
If you wish to use more than one Spectre, where there is a
possibility of all three lamps being switched on at the same
time (i.e. if selecting "white"), then make sure that you have
a mains supply and connectors capable of handling this
amount of current. (6.5A for ONE Spectre, 13A for TWO
Spectres)

Replacing the lamps

In order to replace a lamp, disconnect from the mains supply, and
unscrew the two fixing knobs at either side of the colour filter
plate. Then remove the colour filter plate and reflector assembly
by pulling forwards (this may be quite a tight fit). The lamps are
now accessible, and the faulty lamp may be replaced by a new
lamp type A1/244. This type of lamp has a GY9.5 base, with one
large and one small pin. This is to ensure that it is inserted the
correct way round. Do not touch the glass bulb. Hold the lamp by
its ceramic base, or with the paper packet in which it is supplied.
If the bulb is accidentally touched, clean it before use with
methylated spirit, otherwise lamp life may be reduced or the lamp
could shatter due the deposits of grease from the skin reacting
with the quartz at high temperature.
Replace the colour filter and reflector assembly.
Lamp life
Lamp life can be extended by the following techniques:
1) Use the high brightness/extended life switch. This extends the
lamp life by reducing the power to the lamps. This slightly reduces
the brightness, but extends the life by up to 10 times.
2) Operate at less than full brightness.
3) If flashing or chasing the lamps, use a soft-fade type chase.
4) If flashing or chasing the Spectre, leave the filament slightly
illuminated so that it just glows red-hot similar in appearance
appearance to the element of an electric fire when the Spectre is
off, by setting the "Brightness" slider to about 3% instead of
completely off.
(When changing colour rapidly, setting the saturation slider to
about 3% will have the same effect. It will have negligible effect on
© N.J.D. Electronics 1998 -Page 3-