GAI-Tronics 751-002 User Manual

Pub. 42004-258B

GAI-TRONICS® CORPORATION

A HUBBELL COMPANY

Model 751-002 24 V DC

Speaker Amplifier

Confidentiality Notice

This manual is provided solely as an operation, installation, and maintenance guide and contains
sensitive business and technical information that is confidential and proprietary to GAI-Tronics.
GAI-Tronics retains all intellectual property and other rights in or to the information contained herein,
and such information may only be used in connection with the operation of your GAI-Tronics product or
system. This manual may not be disclosed in any form, in whole or in part, directly or indirectly, to any
third party.

General Information

The Model 751-002 24 V dc Speaker Amplifier
is an important component of the 700 Series
Page/Party
701 and 751 Series Enclosures and broadcasts
page announcements over the Page/Party
system speakers.

®

system. It mates directly with the

®

The Model 751-002 is constructed of 16-gauge
cold-rolled steel and is suitable for either indoor
or outdoor use.

Installation

CAUTION

equipment in hazardous areas or areas other
than those on the equipment approval list in
the “Specifications” section. Such installation
may cause a safety hazard and consequent
injury or property damage.

To install, plug the Model 751-002 Speaker Amplifier into the appropriate enclosure, and tighten the four
screws in the corners of the front panel. Refer to Figure 1 for typical installation details.

Do not install this

Figure 1. Model 751-002 Speaker Amplifier

(shown with an indoor enclosure)

GAI-Tronics Corporation 400 E. Wyomissing Ave. Mohnton, PA 19540 USA

610-777-1374  800-492-1212  Fax: [phone]

ISIT WWW.GAI-TRONICS.COM FOR PRODUCT LITERATURE AND MANUALS

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Pub. 42004-258B

Model 751-002 24 V DC Speaker Amplifier Page:

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Adjustment

Model 751-002 Speaker Amplifier mates with an enclosure wired directly to a speaker. The speaker
volume adjustment is located under the GAI-Tronics nameplate on the front panel. Refer to Figure 1.
Use a small flat-blade screwdriver to adjust the speaker sound volume.

Maintenance

The following table lists some hints to aid technicians in troubleshooting:

Troubleshooting

Problem Solution

Feedback/distortion (a hum or
buzz on the line) occurs during
all Page/Party

®

station operation.

Associated speaker level requires
adjustment.

The line may be improperly terminated. Inspect the system cable

for loose connections, shorts, and grounds. Line balance assembly
connections are critical.

Adjust the speaker volume control located on the amplifier front

panel, behind the nameplate. Refer to Figure 1. Use a small
standard screwdriver to perform these adjustments.

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