Alpine 3402 Manual De Instalación Y Operación página 14

WIRING CONNECTIONS:
Please refer to the diagrams on pages 3 and 4 for wiring connections.
To reduce chances of vehicle-induced noise generated by radiation from other electrical
equipment entering your sound system, use audiophile quality RCA extension cables
whenever possible. We recommend Alpine's gold-plated, triple-shielded wires &
accessories for best results. These accessories feature a second independent shield that
will block any radiated noise from entering the audio signal.
A great deal of time and labor will be saved if you invest in high quality signal
cables before the system is installed, rather than upgrading after a noise problem
surfaces.
Route the sound system's audio cables & power cables separately, as far away from
each other as possible, in order to minimize chances of interference from high current
power wires (such as power amp battery leads) being picked up by the audio cables.
To insure a low impedance path from the vehicle's battery to the 3402, 12-gauge or
larger wire should be used to extend the battery (+) or ground wires. A 5 A in-line fuse
should be used as close as possible to the battery's (+) terminal to protect the vehicle &
the system (see page 15).
All audio components should be grounded to a common point on the chassis. This
grounding point must be verified as a true ground point by checking its continuity with the
battery's (—) terminal, using an ohmmeter. It should also be free of paint and
contaminants.
MOUNTING:
Refer to Fig. 1 — 5 on page 3.
The 3402 has no user adjustable controls.
It is adjusted by the system engineer at the time of installation. Therefore, it can be
mounted at any location that will allow reasonable access for future adjustment changes,
should they become necessary due to system expansion or modification.
This unit can be placed inside the trunk, under the seat, or underdash.
If the permanent mounting location will not allow changes in the adjustment of the
controls, the rest of the sound system must be completely installed, and all the
adjustments to the 3402 should be made before it is permanently mounted in its location.
Input & output wires may be temporarily extended in order to have the unit in a more
accessible position for adjustment. Choosing a readily accessible location will save having
to remove the unit in order to revise any of its adjustments.
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