dHD40BT
·GID
HEAVY
DUTY
CARE
AND
MAINTENANCE
Keep the product dry.
If
it
does get wet
wipe
it
dry immediately. Liquids
m~ht
contain
minerals that can corrode
the
electronic circuits.
Keep the product
away
from dust and dirt which can cause premature
wear
of
parts.
Handle the product gently and carefully. Dropping it can damage circuit boards and
cases, and can cause
the
product
to
work improperly.
Wipe the product with a dampened cloth occasionally
to
keep It looking new. Do
not
use
harsh chemicals, cleaning solvents,
or
strong detergents to clean the
product
Use and store the product
only
In
normal temperature environments. High temperature
can
shorten the life
of
electronic devices, damage batteries, and distort
or
mell
plastic
parts.
Ignition
The
most
common
source
of
noise in reception
is
the ignition system, This is a result
of
the
radio being placed close to the ignition system (engine), This type
of
noise can be easily
detected because it will vary in intensity
of
pitch with the speed
of
the engine.
Usually, the ignition noise can be sLlppressed considerably by using aradio suppression type
high voltage ignition wire and suppressor resistor in the ignition system. (Most vessels employ
this
wire and resistor
but
it
may
be necessary to check them for correct operation.) Another
method
of
suppression is the
use
of
additional noise suppressors.
These
can
be
obtained from
most CBfA radio
or
electronic supply shops
Interference
Radio reception in a moving environment is very different from reception in a stationary
environment (home). It is
very
important
to
understand the difference.
AM
reception
will
deteriorate
when
passing
under
a bridge
or
when
paSSing under high voltage
lines. Although
AM
is SLlbject
to
environmental noise.
it
has the ability
to
be received at great
distance. This is because broadcasting signals
follow
the curvature
of
the
earth and
are
reflected back by
Ihe
LIpper atmosphere.
TROUBLESHOOTING
..
-~,
Wiring
is
not property con-
Check wiring connections,
nected
The operation keys
do
Built--in microcomputer
is
Press
the
reset button (19).
not work
not operating property due
to
noise
Cannot tune to radio sta- Antenna cable
is
not Insert the antenna
cable
firmly_
tion. auto-seek
does
not connected
work
~
__
~
__________
-LS_i::gn
__
als are too
w_e_a_k
____
--'--S_e_'e_ct
__
a
_st_at_io_n_m_a_n_u_a'..:'y_.
____
...1
Volume IS
too
low
Adjust
VOlUme
to audible level.
.~.
dHD40BT
NUYY~
--------------------------------------------------------------------------------------------------------------
SPECIFICATIONS
FAlR.dlo
Ffequency
Coverage (USA)
....
87.5 to 107.9 MHz
Frequency
Coverage (Europe) . .
............
87.5 to 108 MHz
Sensitivity (S/N=30dB)
...........
4~V
Image Rejection
..................
>45dB
Stereo Separation
..........................
>
25
dB
AM/MW
Frequency Range (USA).
530-1710 kHz
Frequency
Range
(Europe)
..
522-1620 kHz
Sensitivity (SIN=2OdB)
................
30 dB
G<>_al
Operating Voltage .
.
..........
DC
12 Volts
Grounding System
.........
Negative Ground
Speaker Impedance .
.
...
4-8
ohms
per
roannel
Tone Contrrns:
Bass (at 100 Hz)
..............
.
.
±14dB
Treble (at
10
kHz).
..
±13d6
Power
Output .
.40Wx4
Fuse Rating
....
.
...........
15
Ampere (max.)
Chassis Dimensions
182(l)
x 52.2(W) x 173(H)
Front Panel Dimensions .
• 188(L) x 58(W) x 21(H)
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