Rockford Fosgate PUNCH Element Ready PMX-0 Mode D'emploi page 7

Troubleshooting
Symptom
Source unit does not turn on.
USB device cannot be inserted
USB device will not charge
No audio in MP3 mode
Diagnosis
Basic
Blown fuse
Vehicle's ignition is off
Voltage applied to Red wire is not
between 10.5 & 16 volts or there is no
voltage present
Unit is not properly grounded
USB Devices
The USB device has been inserted in
the wrong direction
The USB device connector is broken
Extension cable may not be plugged in
properly or bad
AUX
Extension cable may not be plugged in
properly or bad
6
Autogoods "130"
Remedy
Check fuse of the unit, replace with correct rating.
If connected following the instructions, the unit will not
operate with ignition off.
Check battery, connections and fuses and repair or replace
as necessary. If voltage is above +16 volts, have the
electrical system inspected by an authorized service center.
Check wiring and repair as necessary.
Reversing the connection direction of the USB device, try
reinserting.
Replace with a new USB device.
Check extension cable or replace if needed.
Check extension cable or replace if needed.