– 61 –
Turn On “C”
does not work
Tuner cannot
“tune-in” any
radio stations
Tuner has poor
reception
Cassette will not
load into Source
Unit (also see
error codes)
Pulsed Output accessible
only through “Diamond
R” button on IR Remote
Blue/Red wire discon-
nected
IR Remote is not operat-
ing properly
External relay system not
operating properly or
draws more than 300mA
Antenna is disconnected
Antenna is disconnected
or not properly grounded
to vehicle
Antenna cable is inter-
mittent or damaged
Antenna is wrong type
for AM/FM frequencies
Voltage applied to Red
and Yellow wires is not
between 10.5 and 16
volts or there is no volt-
age present
Invest in the optional IR Re-
mote
Check connections and repair
wiring as necessary
Refer to the IR Remote
“Troubleshooting” section for
more information
Disconnect Blue/Red wire
from the system and connect
to voltmeter. Press the “Dia-
mond R” button to verify a
pulsed output of +12 volts for
500ms. Repair external wiring
as necessary
Check connections and repair
as necessary
Check connections and instal-
lation of antenna and repair or
replace as necessary
Disconnect antenna and test
with known working antenna.
If tuner works, check installa-
tion and repair antenna wiring
as necessary
Consult your local Authorized
Rockford Fosgate Dealer for
proper antenna selection
Check battery, fuses and con-
nections and repair or replace
as necessary. If voltage is above
+16 volts, have the electrical
system inspected by an autho-
rized car service center
Symptom
Diagnosis
Remedy
TROUBLE- S
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