Rockford Fosgate RFX9900, Instruction Manual

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TROUBLESHOOTING
PROBLEM CAUSE CORRECTIVE ACTION
No power Blown fuse, power wires
disconnected Check the fuse and power
wire or ground wire
connection
No sound Mute is on, Volume set at
minimum, wiring is not
properly connected Turn Mute to off, adjust
volume to a desired level,
check the speaker wire
Cannot read some USB
devices This unit is not 100%
compatible with all USB
devices or the USB devices
has special format. Try to format the USB device
in FAT 16/32 standard
Unit powers off The battery may be too low
(the unit operating voltage is
10.8v to 15.6v).
Unit takes about 45 seconds
to recognize some USB
device This is normal. The unit
sometimes takes longer time
to read all the files inside the
USB device. Try to remove the USB
device and insert it again.
Operations keys does not
work Completely disconnect the
power for 1 minute or 2 then
plug it back in again
The unit picks up the engine
noise. Check the ground wire.
The PRESET Station
memory is gone after battery
change or discharge This is normal. User has to
re-program.
The radio does not work. The
radio station automatic
selection does not work The antenna cable is not
connected or the signals are
too weak Insert the antenna cable
firmly or select a station
manually
Check Tuner
（
Display
message in SiriusXM mode
）
Check the SiriusXM tuner
connection on the back of the
unit to ensure that it’s
correctly connected.
Check Antenna
（
Display
message in SiriusXM mode
）
Ensure the SiriusXM antenna
cable is connected to the
SiriusXM tuner correctly.
Check the SiriusXM antenna
wire for breaks or sharp
bends. Replace the antenna if