AUSTRALIAN MONITOR CLIM Installation Manual

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Australian Monitor CLIM
Installation Guide
Preparation:
On early model PA
and
KA
Series
amplifiers, some wiring is in the
way, restricting
access
of the CLIM power limiter
card
to the
l0
Pin
Header pins on the main amplifier board. Whilst the
amplifier is
offand
disconnected from the mains supply, remove the top lid of
the amplifier.
A
cable tie holds 3 thermal sensor wires (red, purple
and
black) and
I
fault detect wire (yellow)
against
the heatsink
as
the wires come from the centrally located slow start and distribution PCB. Cut the cable
tie
and
form the wires around the
area
that
the
Clim Card
will
occupy. Try not
to disturb
the fan wiring
too
much
as
their location
has been set
during
test
to
minimize noise radiating into the amplifier.
PCB Mounting Screws
PCB
Standoffs
Heatsink
Threshold (RVl)
CLIM Card (LlM-2.PCB)
Header
Socket
10 Pin
Header
Main Amp PCB
lnstallation:
Starting with Channel-A;
l.
Remove the signal strapping link
on
the l0-Pin
header on the Main Amp
PCB.
2.
Push
the PCB standoffs into the CLIM
Card and ensure
it
"clicks / locks" into position. Important.
Make
sure the open
"gullet"
area
of the standoff
will
be
facing down towards the
header socket.
3.
Line up the
header socket on the
CLIM
Card
with
the header pins on the Main Amp PCB.
Do not
push in
just yet.
Check
that no components are in the way
and
that
no
wiring
will
be caught by the
CLIM
Card.
4.
Once
you
are sure that the header socket
and
pins do line up and all components are clear - push the
CLIM
Card onto the header pins
until
the mounting holes
in
the PCB standoffs line up
with
the
mounting screw
clearance holes in the heatsink.
5.
Screw the mounting screws into
the PCB standoffs adding nail polish
as a
locking "anti vibration"
agent.
6,
Repeat
for
Channel-B.
Set up:
The
CLIM
power limiter card is supplied preset for
the amplifier model
it
has been
ordered for.
There
are
no
further
adjustments that need to be made.
If(for
some reason) the threshold needs to
be
adjusted
1.
Turn
RVI
fully
anti-clockwise.
2.
Bdrg
the amplifier up
to clipping (approx' l% THD+N).
3.
Turn
RVI clockwise to the point the limiter just
starts
to
influence the waveform.
4.
Set
RVI
in position.
Do
a
final inspection
ofyour
installation checking that the card
is
located securely and wiring or components
are
not binding on
any adjacent suriaces. Replace lids.