Features of the Micro-4
• Totally self-contained lighting system
• Built-in microphone
• Jack socket for hand-held microphone
• Fixed-speed or sound-activated chase
• Flash to sound
• Three chase patterns
• 7 Programs
• 2 "Run" sequences
MICRO-4
Mk.3
IMPORTANT
Installer and Users please note:
These instructions should be read carefully and left
with the user of the product for future reference.
Installation
Fix the Micro-4 with the hanging bracket provided, or
stand on a flat surface by rotating the hanging bracket
around the product, and using it as a foot, allowing it to be
tilted to any angle. If suspended, then a safety chain must
also be employed to conform to Health & Safety
Regulations.
The Micro-4 must be installed by a competent
electrician in accordance with the current IEE wiring
regulations.
Connect the Micro-4 to the mains supply using the built-
in mains lead.
• Brown = Live (phase)
• Blue = Neutral.
• Green/yellow = Earth.
• The Micro-4 must be earthed.
If connecting via a mains plug, fit a 3 Amp fuse in the
plug. If installing permanently, connect to a fuse or circuit
breaker of no more than 5 Amp rating. The Micro-4 should
not be connected to the output of a dimmer.
This symbol means that the Micro-4 should be
mounted more than 0.3 metres from any object
that it is illuminating.
User Guide Micro-4
© N.J.D. Electronics 1997 -Page 2-
0.3m
The Micro-4 has a built-in microphone; a jack socket is
also provided on the rear panel for the connection of a low-
impedance microphone. This is useful for voice operation
where the Micro-4 is some distance from the user.
DO NOT CONNECT THE LOUDSPEAKER OUTPUT
FROM A POWER AMPLIFIER TO THE MICROPHONE
JACK SOCKET.
Always leave the Micro-4 for 5 minutes for the lamps to
cool before moving. (Lamps can fail if moved suddenly when
illuminated) When transporting the Micro-4, move the
handle in front of the lamps so that they are protected from
damage.
The Micro-4 must only be operated indoors. Do not
expose to moisture.
Do not stand the Micro-4 on top of a loudspeaker
cabinet. The vibrations may reduce lamp life.
Changing lamps
Disconnect from the mains supply. Unscrew the faulty
lamp, and replace with a new lamp type R80 60 Watt "silver
spot", with an E27 (Edison Screw) base. The colours
supplied with the Micro-4 are (from left to right) Blue,
Amber, Green, Red. It is not recommended that amber be
replaced by yellow, as it is noticeably brighter. Do not use
lamps rated at more than 60W.
Warning: Do not operate the Micro-4 with a lamp
removed, as this makes it possible to touch the live contacts
of the lamp holder.
Changing the Fuse.
Occasionally, when a lamp fails, the fuse may also fail. If
this happens, disconnect the power and remove the lid. The
fuse is located on the circuit board, between the lamp
holders for the red and green lamps. Replace the fuse by a
User Guide Micro-4
© N.J.D. Electronics 1997 -Page 3-
new fuse, type 1.6A Quick-blow, high breaking capacity,
5×20mm. This fuse will have a ceramic case, and be
labelled F1.6A. Do not replace by any other type of fuse. If
the new fuse blows, consult a dealer.
Cleaning.
The Micro-4 should be cleaned regularly by wiping with a
damp cloth. This should only be done when the lamps have
cooled down, and with the power disconnected.
© N.J.D. Electronics 1997 -Page 4-
User Guide Micro-4
Operating.
The three controls on the rear panel of the Micro-4 are
labelled Sound, Chase and Program.
Select the required operating mode on the program
switch:
The options are:
A. Single chase
Chase with each lamp illuminated in
sequence.
B. Pairs chase
Chase with two lamps illuminated
together in sequence.
C. Triples chase
Chase with three lamps illuminated
together in sequence.
D. All flash to sound
All four lamps flash to the beat of
the music.
E. Single chase and flash to sound
asA, but flashing
to the beat of the music
F. Pairs chase and flash to sound
asB, but flashing to
the beat of the music
G. Triples chase and flash to sound
asC, but flashing
to the beat of the music
Run all chase patterns
runs through patterns A, B and
C.
Run all chase and flash patterns
runs through
patterns E, F and G.
In the "Flash to Sound" modes, when there is no sound,
all four lamps will switch off. It is not possible to switch off
sound activation by rotation the sound control fully
anticlockwise in "Flash to Sound" modes.
Sound Chase
Turn the Sound control until the lamps are responding
© N.J.D. Electronics 1997 -Page 5-
User Guide Micro-4
satisfactorily to the bass beat of the music. The Micro-4 has
a built-in microphone so it needs no electrical connection to
the sound source, but it may also be used with a hand-held
microphone.
If sound activation is not required, rotate the sound
control fully anticlockwise.
In "Flash to sound" modes, selecting sound chase, will
make the lamps chase AND flash to sound.
Fixed speed chase
To make the Micro-4 chase at a fixed speed, turn the
Sound control fully anticlockwise, then turn the Chase
control clockwise until the lamps are chasing at the required
speed.
© N.J.D. Electronics 1997 -Page 6-
User Guide Micro-4
© N.J.D. Electronics 1997 -Page 7-
User Guide Micro-4
Technical Specification.
Power supply: 230V AC 1 Amp 240 W
Fuse: F1.6A 5×20mm HBC to IEC127
A HBC fuse has a ceramic case.
Lamps: R80 60W "Silver Spot"
with E27 Edison Screw Base
Red, Amber, Green and Blue
Dimensions: 370 × 135 ×100 mm
excluding handle
Weight: 2.25kg
Safety Standards
The Micro-4 complies with: BS EN60598 (Electrical
Safety Standard for Luminaires), and BS EN55015
(Electromagnetic Compatibility)
©CopyrightN.J.D.Electronics.Neitherthewholenor
anypartoftheinformationcontainedin,northeproduct
describedinthisUserGuidemaybeadapted,copied,or
reproducedinanyformexceptwiththepriorwritten
approvalofN.J.D.Electronics.
Allcorrespondenceshouldbeaddressedto:
CustomerSupport,
N.J.D.Electronics,
10-11,AscotIndustrialEstate,
Sandiacre,
Nottingham,
England.
NG105DJ.
Telephone:+44(0)1159394122
Facsimile:+44(0)1159490453
TechnicalHelpline:+44(0)1159490038
e-mail : technical@njd-electronics.demon.co.uk Web: www.premier-solutions.biz
©N.J.D.Electronics1997
-Page8-
User Guide Micro-4
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