9
This lead maintains the memories within the GR968 and
is the main power source for the unit.
2. Connect the Red wire labelled ‘IGNITION SWITCH (ACC)’
to the v12 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 GR968 switched ON and OFF using it’s own controls.
3. Connect the Black wire labelled ‘NEGATIVE (-)’ to the
battery’s negative terminal or to the common negative
bus in the electrical system.
Important:
Your GR968 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
12 V+’ lead. Although the memory backup current is very
small (about 6 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 12 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. 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 GR968’s output circuit and may result with the radio
overheating.
Caution:
The GR968 is a four-speaker system that requires
2 separate wires for each speaker.
A range of GME Electrophone speakers are available from
your local GME Dealer.
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 vessels 12 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 GR968. For information
on a suitable antenna, contact your nearest GME branch or
marine Dealer.
Reset Button
When the installation is complete, remove the front panel
and press the Reset button using a ballpoint pen or similar
(see PRECAUTIONS on page 3). This will ensure the GR968
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 GR968.
GR968
YELLOW
NEG
Antenna
15 AMP
Optional Master
Switch
External Aux. Switch
(Optional)
IGN Switch
ACC
Memory 12 V+
RE D
BLACK
1 AMP
•
DO NOT
connect the negative (-ve) terminals of the
speaker wires together or connect them to any part
of the negative electrical Bus.
•
DO NOT
short the +ve and –ve speaker
wires together.
Damage caused by the above
will not be covered
under warranty.
(REAR - LEFT SPKR)
(REAR + LEFT SPKR) (FRONT - LEFT SPKR)
(FRONT + LEFT SPKR)
+
–
+
–
+
–
+
–
(REAR - RIGHT SPKR)
(REAR + RIGHT SPKR)
(FRONT - RIGHT SPKR)
(FRONT + RIGHT SPKR)
GR968
LEFT
FRONT
LEFT
REAR
RIGHT
REAR
RIGHT
FRONT
Содержание GR968
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