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within the Gr9000 and is the main power source for
the unit.
. connect the rED wire to the vessels +1 V supply via
an appropriate isolating switch or circuit breaker. this
lead enables the radio to be switched on and oFF.
Alternatively, this wire can be connected directly to the
battery's positive terminal and the Gr9000 switched on
and oFF using it's own controls.
. connect the BlAcK wire to the battery's negative terminal
or to the common negative bus in the electrical system.
important: Your Gr9000 is able to maintain it's
memories when it is switched off using the PWR button by
drawing power directly from your battery via the YElloW
'mEmorY 1 V+' lead. Although the memory backup
current is very small (about 10 mA) it may eventually
discharge your battery if left connected indefinitely. the
time taken to completely discharge your battery could vary
depending on its Amp-hour rating and battery condition.
if you do not run your boat's motor regularly or your battery
is not kept charged between outings (e.g. solar or wind
charger), we recommend you disconnect the YElloW lead
each time you secure or trail your boat. this is easily done
by connecting the YElloW 'mEmorY 1 V+' lead via a
master switch, which can be switched off after each outing.
this will mean you will lose all your preset station memories
and clock settings.
speaker connections
When connecting the speakers, observe the correct polarity as
shown in the diagram above right. incorrect polarity will result in a
reduction of Bass response and stereo effect. the use of speakers
with an impedance of less that 4 ohms is not recommended, as
they will cause excessive loading of the Gr9000's output circuit
and may result with the radio overheating.
PA G E 6
i n s t r u c t i o n m A n u A l
caution: the Gr9000 is a four-speaker system that
requires separate wires for each speaker.
A range of GmE speakers are available from your local
GmE retailer.
connect all four speakers as shown in the diagram above.
Adjust the Fader control for the required front/rear balance.
if you wish to connect only two speakers, connect these to
the rear speaker wires. the remaining speaker wires should
be insulated to ensure they cannot short circuit together or
to the vessel's 1 Volt or negative electrical Bus. if using only
two speakers, adjust the Fader control to the rear speakers.
antenna connections
connect an Am/Fm marine antenna to the antenna
socket which extends from the rear of the Gr9000. For
information on a suitable antenna, contact your nearest
GmE branch or marine retailer.
reset Button
When the installation is complete, remove the front panel
and press the reset button using a paper clip or similar
object (see PrEcAutions on page 4). this will ensure
the Gr9000 is ready to operate for the first time. if at any
time the controls do not seem to work (after replacing the
vessel's battery for example), press the reset button to
reset the microcomputer inside the Gr9000.
fuse replacement
if any of the fuses blow, replace them with a standard
0 mm AG type of the same rating, if the fuse blows a
second time contact your retailer.
G r 9 0 0 0 s E r i E s
the following fuse ratings are used:
- Yellow 'memory 1 V +' lead: 15 Amp.
- red 'ignition switch Acc' lead: 0.5 Amp.
opEratIon
general functions
power on/off
1
to turn the Gr9000 on, press the pWr Button. the unit
will resume the mode and settings that were selected when
last turned oFF.
to turn the Gr9000 off, press the pWr button again,
note that when the Gr9000 is turned oFF the clock is
displayed without the backlight.
audio controls
2
the Volume, Bass, treble, Balance and Fader controls are
selected electronically. the default setting is the
Volume control.
to select an alternative control, press the sel
3
button
until the desired function is displayed on the lcD. Each
press cycles to the next function in sequence. Adjustment of
the selected control function is made by the large
rotary knob
2
.
loudness
4
Pressing the lou button will provide a low frequency
(bass lift) boost to the audio output. to indicate selection
a 'louD' flag will be illuminated on the lcD. Pressing the
lou button again will de-select the loudness function.
mute
5
Pressing the mut button will temporarily silence the audio
output. 'mutE on' is displayed on the lcD to indicate the
Gr9000 has been muted. Pressing the mut button again
will restore the previously selected audio level.
clock
6
to display the current time, press the dsp button, after 5
seconds the display will return to it's original status.
the time is shown in the 4 hour format.
to set the clock, press and hold the dsp button until the
time display begins to flash. the time can then be adjusted
by rotating the volume knob. to adjust hours, rotate the
knob clockwise, to adjust the minutes, rotate ant-clockwise.
mode
7
Pressing the mod button will select the Gr9000 operating
mode. tunEr, cD or AuX modes are sequentially selected
as the mod is pressed. When the Gr9000 is switched
on it will automatically return to the mode it was in when
switched oFF.
G r 9 0 0 0 s E r i E s
i n s t r u c t i o n m A n u A l
local/distance control
8
Pressing the loc button selects an internal attenuator
which will help to reduce the interference and distortion
often associated with very strong local radio transmissions.
the loc flag on the lcD is illuminated when the Gr9000 is
in the local mode.
stereo/mono selector
9
Pressing the st button selects either mono or stereo
reception. the unit will momentarily display 'mono' or
'stErEo' when toggling the st switch. the st flag is
displayed when the Gr9000 is in the stereo mode.
selecting mono improves reception when Fm signals are
weak or noisy, by disabling stereo detection.
select stereo for normal listening on Fm radio bands, a
symbol is displayed when stereo signals are
being received.
radio operation
Band selector
10
to select the required radio band (Am1, Am Fm1 Fm or
Fm), sequentially press the Bnd button until the required
band is selected.
tuning/selecting tracks
11
manual tuning
to tune the radio manually, momentarily press the
or
button to select the desired frequency. Each press will
step the frequency by 50 kHz.
automatic tuning (seek)
Press and hold either the
or
buttons for seconds.
the Gr9000 will stop seeking when a strong, clear station
is detected.
storing of stations in memory
once the desired station has been selected, press and hold
one of the six pre-set station memory locations on the front
panel for seconds. the corresponding button number will
appear on the lcD indicating that the selected station is
now programmed into the Gr9000 memory.
auto programming of radio stations (ams)
13
select the required band
Press and hold the ams button for seconds; the Gr9000
will now commence searching the band for radio stations.
As each station is located it is automatically stored in the
next available pre-set memory location. the new stations
will replace any stations previously stored in that band.
PA G E 7
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