Device Connections - NORAUTO PRF-750 Manual De Instrucciones

Notes of connection
• This unit is designed to be used in a
vehicle with a 12-volt battery and negative
grounding. Before installing this unit to a
recreational vehicle, a bus, or a truck, make
sure the battery voltage is appropriate for
this unit to be used, otherwise, install a
transformer by professional to convert the
output voltage to 12V.
• To avoid short circuit in the electrical
system, ensure that the negative battery
cable is disconnected before installation.
• To prevent short circuit in the wiring and
damaging to this unit, secure all wirings
with cable clamp or adhesive tape. Route
the wirings in a secured, out of heating
place without touching any moving parts
such as gear shift, handbrake, and seat
rails to prevent the wiring insulation being
melted / wore off.
• Never pass the yellow power cord through
the installation hole into the engine
compartment and connect to the car
battery. Otherwise, a high possibility of
serious short circuit to the electrical system
may be occurred.
• Replacing a new fuse with 15A rating when
the old one is broken, using no fuse or fuse
with improper rating may cause damage
to this unit or even fires. If a proper fuse is
installed and electrical problems still occur,
please contact with any professional car
shops for inquiry.
• DO NOT connect other equipments with
the car battery to avoid battery overheating.
• Please make sure all the wiring connections
& the cables of the Speakers are well-
insulated. Otherwise, this unit may be
damaged by short circuit.

Device Connections

• If there is no ACC available, please connect
ACC lead to the power supply with a switch.
• If an external power amplifier is connected,
please don't connect P.CONT lead to the
power lead of the external power amplifier,
otherwise, electric spark or other damage
may be resulted.
• Never ground the speaker output to prevent
the damage to the built-in power amplifier.
• The minimum rating of the speakers
connected to this unit is 45W with 4 to 8Ω
impedance.
EN-19