Lexicon RX-7 User Manual download pdf (Page 18)

Basic Operation Lexicon

2-8

restore AC power. If the circuit breaker immediately trips to the OFF

position, unplug the amplifier from the AC power source and

contact Lexicon Customer Service.

Note:

The Class 2 Wiring label is required for any unit in which the audio output

power exceeds 10W per channel under normal operating conditions or if

the unit is intended to be installed or connected by a skilled person.

CAUTION!

When the ZX-7/RX-7 master power switch is switched off

or there is a power outage, the state of the unit remains

the same when power is restored. If in standby mode (red

LED) when the power is removed, it will remain in standby

mode when power is restored. If the unit is in active mode

(blue LED) and power is removed, it will remain activated

when power is restored. It is recommended that the

ZX-7/RX-7 be set to standby mode before being powered

off to prevent potential damage to the unit or your

speakers. If the ZX-7/RX-7 is not trigger-connected to a

controlling device, such as the MC-12HD/MC-8 which

comes out of power loss and recovery in standby mode

with a known volume setting, there is a potential for

damage to the speakers if power is lost and restored with

the ZX-7/RX-7 in active mode.

6 AC POWER CONNECTOR

The AC input connector provides power to the unit with the

supplied power cord. The 120 VAC version of the RX-7 is supplied

with a 20 Amp power cord with a NEMA-5-20P plug on one end.

The 120 VAC version of the ZX-7 is supplied with a two 15 Amp

power cords with standard NEMA-5-15P plugs on one end. The

NEMA 5-20P power cord has a different prong configuration than

the average typical 15A household plug.

The 120 VAC version of the RX-7 requires a dedicated

circuit with a single 20 Amp outlet installed. The 20 Amp

outlet has a different prong configuration from the 15

Amp outlet. Dedicated circuits typically are connected

directly to the service entrance of the building.

The 120 VAC version of the ZX-7 has two power cords.

Each power cord must be plugged in to a separate 15 Amp

circuit. Separate circuits typically are connected to

different circuit breakers at the service entrance of the

building.

Do not attempt these wiring changes by yourself, instead

hire a licensed qualified electrician.

CAUTION!

Never make or break connections to the ZX-7/RX-7 unless

the ZX-7/RX-7 and all associated components are

powered off.

7 SPEAKER OUTPUT CONNECTORS

Provide audio output for the speakers. Output connectors can

accept bare speaker wires, or most spade connectors. When using

bare speaker wires, loosen the connector, insert the wire into the

top of the receptacle, then tighten the connector. The same

procedure should be used for spade connectors.

Use heavy gauge speaker cable to ensure low-impedance

connections between the amplifier and the speakers. Observe

correct speaker polarity.

WARNING

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Lexicon RX-7 User Manual Page 18

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