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Standard Horizon QUEST - GX1256S Manual

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GX1256SPage 58
10.3 TROUBLESHOOTING CHART
PROBABLE CAUSE
No DC voltage to the
transceiver, or blown
fuse.
Reversed power
wires.
Engine noise.
External cable.
Antenna.
The power supply volt-
age is too high or too
low.
External cable.
Setting of the GPS
navigation receiver.
REMEDY
a. Check the 12 VDC battery con-
nections and the fuse.
b. The VOL/PWR knob needs to be
pressed and held to turn the ra-
dio on.
Check the power cable for DC volt-
age, or replace the fuse (6A 250V).
Make sure the red wire is con-
nected to the positive (+) battery
post, and the black wire is con-
nected to the negative (-) battery
post. If the fuse still blows, con-
tact your Dealer.
Reroute the DC power cables
away from the engine. Add noise
suppressor on power cable.
Change to resistive spark plug
wires and/or add an alternator
whine filter.
Check the polarity of the con-
nected external cable.
Have the antenna checked or test
the transceiver with another an-
tenna. If the problem persists, con-
tact your Dealer for servicing.
Confirm that the connected power
supply voltage is not 17 volts or
lower than 10 volts. Confirm that
the generator has not malfunc-
tioned.
Check the polarity of the con-
nected external cable.
Some GPS use the battery ground
line for NMEA connection.
Check the output signal format of
the GPS navigation receiver. This
radio requires NMEA0183 format
with GLL sentence as an output
signal. If the GPS has a baud rate
setting make sure to select 4800
and parity to NONE.
TROBLESHOOTING CHART
SYMPTON
Transceiver fails to
power up.
Transceiver blows
fuse when connected
to power supply.
Popping or whining
noise from the
speaker while engine
runs.
Sound is not emitted
from the external
speaker.
Receiving station re-
port low transmit
power, even with
transceiver set to HI
power.
“HI BATTERY” or
“LOW BATTERY”
message is scrolled
when the power is
turned on.
Your position is not
displayed.
… 58 …


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