Pioneer GM-3000T Setting the Unit, Connecting the Unit, Gain Control, Connection Diagram

Models: GM-3000T

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Setting the Unit

Gain Control

Power Indicator

Connecting the Unit

CAUTION

• Disconnect the negative (–) terminal of the battery

• Make sure that wires will not interfere with mov-

Connection Diagram

Fuse (30 A)

If the sound level is too low, even when the volume of the car stereo used along with this power amplifier is turned up, turn gain control on the front of the power amplifier clockwise. If the sound distorts when the volume is turned up, turn the gain control counter-clockwise.

• When using with an RCA equipped car

stereo (standard output of 500 mV), set to

the NORMAL position. When using with

an RCA equipped Pioneer car stereo with

max. output of 4 V or more, adjust level to

match the car stereo output level.

• If you hear too much noise when using the

speaker input terminals, turn the gain

The power indicator lights when the power is switched on.

to avoid the risk of short-circuit and damage to

the unit.

• Secure the wiring with cable clamps or adhesive

tape. To protect the wiring, wrap adhesive tape

around it where they lie against metal parts.

• Do not route wires where they will get hot, for

example where the heater will blow over them. If

the insulation heats up, it may become damaged,

resulting in a short-circuit through the vehicle

body.

ing parts of the vehicle, such as the gearshift,

handbrake or seat sliding mechanism.

• Do not shorten any wires. Otherwise the protec-

tion circuit may fail to work when it should.

• Never feed power to other equipment by cutting

the insulation of the power supply wire to tap

from the wire. The current capacity of the wire

will be exceeded, causing overheating.

• Never replace the fuse with one of greater value

or rating than the original fuse. Use of an improp-

er fuse could result in overheating and smoke and

could cause damage to the product and injury

including burns.

Grommet

Fuse (30 A)

Special red battery wire [RD-223] (sold separately) After making all other connections at the amplifier, connect the battery wire terminal of the amplifier to the positive (+) terminal of the battery.

Ground wire (black) [RD-223] (sold separately) Connect to metal body or chassis.

control counter-clockwise.

CAUTION:

To prevent damage and/or injury

Do not ground the speaker wire directly or con- nect a negative (–) lead wire for several speakers.

This unit is for vehicles with a 12-volt battery and negative grounding. Before installing it in a recre- ational vehicle, truck or bus, check the battery voltage.

If the car stereo is kept on for a long time while the engine is at rest or idling, the battery may go dead. Turn the car stereo off when the engine is at rest or idling.

If the system remote control wire of the amplifier is connected to the power terminal through the ignition switch (12 V DC), the amplifier will always be on when the ignition is on— regardless of whether the car stereo is on or off. Because of this, the battery could go dead if the engine is at rest or idling.

Speakers to be connected to the amplifier should conform with the standards listed below. If they do not conform, they may catch fire, emit smoke or become damaged. The speaker impedance must be 2 to 8 ohms for stereo connection, and 4 to 8 ohms for monaural and other bridge connection.

Install and route the separately sold battery wire as far away as possible from the speaker wires. Install and route the separately sold battery wire, ground wire, speaker wires and the amplifier as far away as possible from the antenna, antenna cable and tuner.

Cords for this product and those for other prod- ucts may be different colors even if they have the same function. When connecting this product to another product, refer to the supplied Installation manuals of both products and connect cords that have the same function.

Front side

Connecting wires with RCA pin plugs (sold separately).

Car stereo with

RCA output jacks

External Output

RCA input jack

Speaker input terminal See the “Using the Speaker Input” section.

LPF (Low-Pass Filter) Select Switch

Set the LPF select switch as follows according to the type of speaker that is connected to the speaker output connector and the car stereo system:

LPF Select

Audio frequency range

Speaker

Remarks

Switch

to be output

Type

 

LPF (left)

Very Low Frequency range

Subwoofer

Connect a subwoofer.

 

 

 

 

OFF (right)

Full range

Full range

 

 

 

 

 

Speaker Channel

Speaker Type

Power

Two-channel

Subwoofer

Nominal input: Min. 55 W

 

 

Other than subwoofer

Max. input: Min. 80 W

 

 

 

 

One-channel

Subwoofer

Nominal input: Min. 125 W

 

 

Other than subwoofer

Max. input: Min. 200 W

 

 

 

 

Fuse (20 A)

Speaker output terminal See the “Connecting the Speaker wires” section for speaker connection instructions.

Back side

System remote control wire (sold separately)

Connect the male terminal of this wire to the system remote control terminal of the car stereo (SYSTEM REMOTE CONTROL). The female terminal can be connected to the auto-antenna relay control terminal. If the car stereo does not have a system remote control ter- minal, connect the male terminal to the power terminal through the ignition switch.

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Pioneer GM-3000T owner manual Setting the Unit, Connecting the Unit, Gain Control, Connection Diagram