Input Connections; Power Connections - US Blaster USB 1380 Bedienungsanleitung

Input Connections

This amplifier will accept low level inputs. Low level is the same as line level or preempt level.
Low level signal is carried through RCA cables. It is preferred to use low level inputs to the
amplifier if the head unit is equipped with the low level outputs.
Low level/line input-connect RCA cables from head unit, or other signal processor, to the line
level input on the amplifier. See Fig.2 system wiring diagrams.

Power Connections

It is important to have good quality power and ground connections. Remember, to complete
an electrical circuit, the ground connection is just as important as the positive power connection.
Before any power connections are made, disconnect the ground cable at the battery.
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When the power supply lead. Memory backup lead or ground lead are extended, use a 5mm
(AWG5) or larger automotive grade cable which will withstand friction and heat to safe guard
against fires occurring as a result of short-circuiting.
Ground-Connect the proper gauge ground wire to the amplifier"GND" terminal. Locate the
position on the chassis of the car to which the amplifier is to be ground. The surface must be
free from any paint or dir. This can be accomplished with a small grinding bit or wire wheel.
NOTE: Do not ground amplifier to the "frame" of the car, the frame on most cars and trucks
is not grounded to the chassis(body). Solder or clamp ring terminal to ground wire.
Pretrial the prepped chassis metal to bolt the ground ring terminal with nut, bolt and lock
washers. Insulate mental and connector with paint or silicon to prevent rust and oxidation.
Silicon also works great to prevent nuts and bolts from working loose in a harsh environment
of an automobile. Upon completion of ground connection, grab wire or connector and confirm
that it is a solid connection. To prevent engine noise, it is recommended to ground the head
unit and other audio electronics in the same location.
Remote Turn-on-Connect smaller light gauge wire to "REMOTE" terminal of amplifier and to
remote/antenna turn-on output or "remote amplifier" of head unit. If head unit is not equipped
with a remote/antenna output, locate a wire that is controlled by the accessory position of the
key. It is important to have the amplifier turn off with the radio or key. If the amplifier remains
on, the result will most likely be a dead battery.
Positive-Connect the proper size wire to the amplifier "B+" terminal of amplifier. Run wire to
wards the fuse holder that is no greater then 0.5meters from the battery. Remember, the fuse
is to protect the safety of the car in the case of a short. Connect fuse holder to battery, however,
do not install fuse at this time.
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