Clarion APA2103 - Setting Gain

• When making connections, be sure that eac h co nnection is clean and
secure . Insulate final connections with electrical tape or shrink tubing .
Failure
to do so may damage your equipment.
+ A secure, clean ground connection is critical to the performance of your
Clarion car audio amplifier. Use the shortest ground wire possible to
minimize resistance and avoid noise problems.
+ Refer to Figure 7 when making electrical connections. Connect the
amplifier's positive (+)power lead via a fuse directly to the positive ( +)
terminal on the battery . Do not connect this wire to the car's fu se panel.
Use the power cable calculator chart (see Figure 8 on page 12 ) to
determine the appropriate wire size for the amplifier 's positive ( +)
power lead and the same-gauge black-insulated wire for the ground.
Source Unit
0 5 Amp Remote
J g; al l==l· :n: Fu =se===T=ur=n=-O=n,;7
OR
Chassis Ground
(Ba re Metal)
r - - - - - - - - - - - - - - - - - - -:- - - - - ..., Fuse
• +12V I
I Source Umt 87
I I
0
ol 0.5 Amp · 85 To Remote I
I
-~ B Fuse 1N4 009 - 30 Turn - On I
I or equal AMP 1 I
I
86 AMP 2 I
I
_
Bosch AMP
3
I
- Reloy I
I *·
L-----------------------J
Caution: Clarion's Antenna/Amp output is restricted to 500 mA (MAXIMUM).
Do not replace the 0.5 A
fuse with a higher value or you will damage
the unit. ff more current is required when installing multiple amplifiers,
use this relay circuit.
Figure 7. Electrical connections for an APA2103 amplifier.
10 • Installation
+ Add an external fu se on the positive ( +) power lead and connect it as
close as possible to the vehicle's (+)battery terminal. Use a rating th at
equals the total cune nt consumption at full outp ut of a ll amplifie rs in
the syste m. Adding an external fu se will protect the elect rical sys tem
from s hort circuits that can cause a fire.
+ When replacing the a mpl ifier's fuse, al ways u se one h av ing the same
cmTent rating . Substit ut ing a higher-rated fuse can reduce protection
and may result in se riou s damage to the amplifier.
+ Never gro und the speakers to the vehicle cha ss is or body.
+ Make sure that yo ur ve hicle 's electrical system (i . e., alternator, battery,
etc.) is capable of handlin g the additional l oad. If you are planning a
multi-amplifier
sys tem , you may need to add a second battery and
po ssibly upg rade the a lt ernato r with a hi gh er -output -rated model.
Consult your aut horized Clarion dealer for recommendation s.
+ To avoid po ssi ble noise problems , run the amplifier's positive ( +)
power lead along one side of the vehicle to the battery . Run th e re mote
turn-on wire and RCA a udi o cables down the center, and route the
s peak er w ir es along the remaining side. If wires mu st cross, run th em
perpendicular to each other.
+ When creating passage hol es for the power wire, use gro mm ets to
eliminate any s harp edges created during diilling. This will protect the
w ir e from being nicked and cau s ing a short circuit.
+ Extra ca ble can cause signa l lo ss and act as an "antenna" for noise. Use
only high-quality RCA ca ble s that are no lon ger than necessary to make
a di rect connection with the source unit or eq u alizer.
+ Depending on the type of sys t em being installed, refer to the examples
in Figures 4 through 6 (s t arting on page 6) for information on wiring
and setting the operation mode.
Installation • 11