Pioneer GM-4200 Service Manual - Page 9
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5. CONNECTING THE UNITS {EW MODEL)
Connect the components as shown in the diagram.
• Before finalizing installation, turn everything on, and make sure
everything works correctly and that no noise is getting into the
system.
• When routing leads and cords, secure them with cable retainers
and electrician's adhesive tape. Also, to prevent any damage to
the insulation on the leads and cords, protect them with electrician's
adhesive tape wherever they may touch sharp edges.
• Keep all wiring away from hot surfaces or heater outlets to prevent
short circuits,
• It is recommended that the speakers connected to the amplifier
have the ratings shown below, or higher. If a speaker has a rating
below that recommended, it may be damaged when the volume
is turned up. The speaker impedance must be 2 to 8 ohms.
Mode
Speaker ratings
Two-channel
Maximum
240 W
Nominal
120 W
One-channel
Maximum
640 W
Nominal
320 W
In the case of a full-range speaker, use one whose maximum rating is
higher than the maximum rating shown. In the case of a sub-woofer,
use one whose nominal rating is higher than the nominal rating shown.
Never connect a speaker lead to ground or to other speaker grounds.
The protection circuitry will operate instantaneously, turning off
the amplifier.
To prevent noise problems, keep the power leads to the amplifier
away from the signal cords and speaker leads. Also, keep the power
leads away from any antenna cords.
Amplifier ground leads (blackl should be connected to a solid
metal part of the vehicle body. If using multiple amplifiers, connect all
amplifier ground leads to the same point to prevent noise problems.
To get good contact when grounding, you may have to sand
away the paint to expose the metal underneath.
To operate the amplifier and car stereo properly, connect the
battery lead and the accessory power lead (red/black) correctly.
If the leads are not connected correctly or are not connected at
all, the amplifier and car stereo will not work.
To connect the amplifier to the RCA pin jacks of a car stereo
component, use an audio cord with RCA pin plugs. To connect
the amplifier to the DIN socket of a car stereo component, use a
DIN connection cord. Both kinds of cord are available from your
dealer.
Connecting the battery lead (red)
Route the positives) battery lead (red) from the engine compartment
to the passenger compartment before connecting it to the amplifier.
To prevent a short circuit, only connect the lead after connecting all
the other leads. Connect the two wires of the battery lead securely. If
either of them comes loose because of vibration while the car is
moving, a short circuit may occur and a fire may break out.
Connect
these
terminals securely
to the two battery
terminals.
After all the other
leads have been
connected, connect
both terminals to the
positrve (+) terminal
of the battery.
B