Ashly PowerFlex 670 Panduan Pengoperasian - Halaman 9

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P o w e r f l e x

670 shown -

P o w e r f l e x

470 only has

channels 1-4

5.) Replace the fuse with the appropriate size (see

#6 below), and press the fuseholder back into the AC inlet

until it latches.

6.) Using a power cord of the appropriate size

and with the appropriate terminations, plug the cord into

the rear of the amplifier and then into the wall. The

Powerflex amplifier is now ready for use at the new mains

voltage.

If the mains voltage is 110-125VAC, the required

fuse is MDA 12, 250V, and the required power cord is 3-

wire grounded, 13 Amp (16AWG) minimum.

If the mains voltage is 220-250VAC, the required

fuse is MDA 10, 250V, and the required power cord is 3-

wire grounded, 10 Amp (18AWG) minimum.

7.8

Speaker Outputs

The Speaker outputs are provided on screw ter-

minal barrier strips with security covers. The output screw

terminals will accept spade lugs or stripped wire for wire

sizes 10 to 22 gauge.

: T

AUTION

ERS CAN PRODUCE DANGEROUS VOLTAGE LEVELS AT

THE OUTPUT SCREW TERMINALS

SHOULD ALWAYS BE OPERATED WITH THE SCREW TER

MINAL SAFETY COVER SECURELY IN PLACE

NECT OR DISCONNECT

UNPLUG THE AMPLIFIER BEFORE REMOVING THE OUT

PUT SCREW TERMINAL SAFETY COVER

Operating Manual - Powerflex Multi-Channel 70V Power Amplifier

70V

OWERFLEX

AMPLIFI

. T

HE AMPLIFIER

. T

O CON

70V

OUTPUT WIRES

ALWAYS

In bridge mode, the speaker output con-

nections are taken from the two (+) screw terminals where

the odd-numbered channel (+) output is the positive con-

nection and the even-numbered channel (+) output is the

negative connection.

CAUTION: NEVER CONNECT THE TWO (+)

SCREW TERMINALS TOGETHER OR CONNECT A (+)

SCREW TERMINAL TO A (-) SCREW TERMINAL.

SELF-PROTECTION FEATURES

Powerflex 70V amplifiers contain circuitry to self-

protect during extreme fault conditions. These fault con-

ditions are:

1.) Power supply undervoltage

2.) Power supply overvoltage

3.) Output overcurrent

4.) Heat sink overtemperature

5.) Unacceptable DC or high frequency output content

6.) AC power interruption

Except for AC power interruption, the detection

of any fault will result in the activation of protection cir-

cuitry on a particular module, which consists of two chan-

nels. That is, a short circuit on the output of channel 1

will result in both channel 1 and channel 2 entering pro-

tect mode. This is because the signal processing module,

which processes both channels simultaneously, does not

distinguish between the two channels within a channel pair

when processing a fault.