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SECTION 3
INSTALLATION AND OPERATION
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3.1 Unpacking
As soon as you receive the unit, please inspect for any
d a m a g e incurred in transit. S i n c e the unit w a s
carefully inspected and tested at the factory, it left
u n m a r r e d . If d a m a g e i s f o u n d , n o t i f y t h e
t r a n s p o r t a t i o n c o m p a n y i m m e d i a t e l y . Only t h e
consignee may institute a claim with the carrier for
d a m a g e d u r i n g s h i p m e n t . H o w e v e r , C r o w n w i l l
cooperate fully in such an event. Be sure to save the
c a r t o n a s e v i d e n c e of d a m a g e for t h e c a r r i e r ' s
inspection.
Even if the unit arrived in perfect condition, a s most do,
it is advantageous to save the packing materials. They
will help prevent damage if you ever need to transport
or ship the unit. Note the carton and internal pack.
Each is designed for protection during transit.
Do not
ship the unit without this factory pack!
3.2 Mounting
T h e Micro-Tech is designed for standard 1 9 " rack
mounting a s well a s " s t a c k " mounting without a
cabinet. T h e feet c a n be removed if n e c e s s a r y .
Mounting dimensions are shown in Fig. 3 . 1 .
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3.5
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!9"
17"
Fig. 3 . 1 Micro-Tech 1000 Mounting Dimensions
For mobile installations, screw the rear panel onto the
rear of the rack cabinet.
If the air supply is unusually dusty, you may want to
pre-filter the air supply using commercial furnace
filters, etc., to prevent rapid loading of the unit's own air
filter. If the unit's filter becomes plugged, it can be
c l e a n e d w i t h m i l d d i s h d e t e r g e n t a n d w a t e r ;
replacement is not necessary.
3.3 Operating Precautions
Although your Micro-Tech amplifier is well protected
f r o m a n y e x t e r n a l f a u l t s , we r e c o m m e n d t h e s e
precautions for safe operation:
1. There are two modes of mono operation (parallel
mono and bridge mono). Read Section 3.5 to
determine which mode you need.
2. After wiring the unit for PARALLEL MONO, do not
operate the amplifier in stereo mode. Check the
position of the parallel-mono switch on the back
panel.
3. Use care in making connections, selecting signal
sources, and controlling the output level. The load
you save may be your own.
4. Do not short the ground lead of an output cable to
the input signal grouond. This may form a ground
loop and cause oscillations.
5. Operate the amplifier from AC mains of not more
than 10% above the selected line voltage,and only
the line frequency specified. Failure to comply
with these voltage and frequency limits will inval-
idate the warranty.
6. Never connect the output to a power-supply out-
put, battery, or power main. Damage incurred by
such a hookup is not covered by the warranty.
7. Tampering in the circuit by unqualified personnel,
or making unauthorized curcuit changes inval-
idates the warranty.
3.4 Connecting Output Lines
It is always wise to remove power from the unit and
turn the input level controls off (CCW) while making
connections, especially if the load is a loudspeaker
system. This will eliminate any chance of loud blasts or
damage to the loudspeaker.
The Micro-Tech output connectors are on the rear of
the amplifier, a s shown in Fig. 3 . 2 . A preferred
speaker-cable connector is a "dual b a n a n a " (MDP)
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