O speaker terminals (for each channel), Ground lift switch (for each channel), Input connectors (xlr-3-31) – Yamaha PC4002M User Manual

Page 6: Input connectors (xlr-3-32), O phone input connectors, Mode selector switch (btl)

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REAR PANEL

Cord Reel

O SPEAKER TERMINALS (FOR EACH CHANNEL)

The red speaker terminal should be connected to the "+"

terminal of the speaker system, and the black terminal to

the channel. (In the above illustration, terminal covers

are not shown. See page 5)

©GROUND LIFT SWITCH (FOR EACH CHANNEL)

Connects or isolates the ground of XLR-pin 1. Usually left

ON. However, in some cases where ground loops are

causing hum, "lifting" the ground by turning this switch

OFF can interrupt the loop, thereby reducing hum.

©INPUT CONNECTORS (XLR-3-31)

These female input connectors are usually used as inputs.

They are wired: Pini =ground, Pin2 = hot, Pin3=cold.

Compatible

connectors

include

ITT-Cannon

XLR-3-12C,

Switchcraft 5C-1055A and Neutric NC3MX.

©INPUT CONNECTORS (XLR-3-32)

These male inputs duplicate the female input connectors

(same wiring), but are usually used for retransmitting the

input signal to other amplifiers. Compatible connectors

include

ITT-Cannon

XLR-3-11C,

Switchcraft

5C-1056A

and Neutric NC3FX.

O PHONE INPUT CONNECTORS

These 1 /4-inch balanced TRS connectors accept balanced

and

unblanced

input

signals.

Tip=hot,

Ring=cold,

Sleeve=ground.

When set to MONO, this switch allows bridged (mono)

operation of the amplifier. The speaker terminals should

be connected to the" + " terminals of both channels (CH-A

to the speaker "+" and CH-B to the speaker "-"). When

using the PC4002/4002M in BTL (MONO) mode, con

nection should be made to CH-A input only.

This manual is related to the following products:

PC4002