Pub. 42004-360B
GAI-TRONICS® CORPORATION
A HUBBELL COMPANY
Volume Level Control Receiver Assembly
Instruction Sheet
Confidential ity Notice
This manual is provided solely as an operational, 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
This instruction sheet is for use with handset/speaker amplifiers and speaker amplifiers that have a
factory-installed Volume Level Control (VC option) printed circuit board assembly installed. The 120 V
ac models use 10464-002 VLC assembly. The 24 V dc models use 10464-001 VLC assembly:
120 V AC
Amplifier
Model No.
701-302VC 69701-008 701-307VC 69701-015
701-304VC 69701-014 713-102VC 69713-202
713-101VC 69713-201 723-003VC 69723-202
723-001VC 69723-201 751-002VC 69701-012
751-001VC 69701-010
PURPOSE: With the addition of the VLC assembly, remote control of the amplifier’s volume setting can
be achieved by means of an associated 50 kHz signal transmitted across the system page line.
PCBA No.
24 V DC
Amplifiers
Model No.
PCBA No.
GAI-Tronics Corporation 400 E. Wyomissing Ave. Mohnton, PA 19540 USA
610-777-1374 800-492-1212 Fax: 610-796-5954
V
ISIT WWW.GAI-TRONICS.COM FOR PRODUCT LITERATURE AND MANUALS
Pub. 42004-360B
Volume Level Control Receiver Assembly Instruction Sheet Page 2 of 4
NOTES:
1. W3 has been removed from the amplifier PCB during the installation of the VLC PCBA.
2. Speaker adjustment for normal operation remains under the nameplate on the front panel and does not
change with the addition of the VLC. The speaker adjustment for the VLC is factory set and can be
varied by adjusting the level potentiometer on the VLC assembly.
3. When an alarm is broadcast and is accompanied by a VLC (50 kHz) signal, it triggers the volume on
the Page/Party
®
VLC amplifier to change level depending on its volume level setting. GAI-Tronics
Model 800 and 1200 Series cone speaker assemblies are normally used for indoor applications with
low ambient noise, such as offices, corridors, and control rooms. These speakers have a manual,
wall-mounted remote volume level control.
®
4. When these speakers are powered by a Page/Party
VLC amplifier, and the volume level is manually
turned down using the wall-mounted remote volume level control, the signal that increases the
volume on the VLC amplifier will not bypass the manual setting. These speakers remain “turned
down,” regardless of the output signal of the amplifier, and the alarm broadcast level does NOT
increase on the cone speaker assemblies.
5. The Model 800 and 1200 Series speakers can be used in emergency notification systems; however,
we suggest that the customer NOT install the wall-mounted remote volume level control for this type
of application.
6. DO NOT READJUST the frequency potentiometer on the VLC assembly.
Figure 1. VLC assembly used in 24 V dc amplifiers
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Pub. 42004-360B
Volume Level Control Receiver Assembly Instruction Sheet Page 3 of 4
Figure 2. VLC assembly used in 120 V ac amplifiers
Figure 3. VLC PCBA Component Location
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Pub. 42004-360B
Volume Level Control Receiver Assembly Instruction Sheet Page 4 of 4
Specification s
Input voltage to VLC assembly (as applicable):
10464-001 for use in 24 V dc amplifier applications ................................... 21–28 V (25 V dc nominal)
10464-002 for use in 120 V ac amplifier applications ........................... 130–190 V (160 V dc nominal)
Input sensitivity @ 50 kHz rms +
Bandwidth capture range @ 300 mVrms in ........................................................... 50 kHz +
+
50 Hz in ........................................ must activate by 40 mVrms maximum
2 kHz minimum
5 kHz maximum
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Warranty
Equipment. GAI-Tronics warrants for a period of one (1) year from the date of shipment, that any
GAI-Tronics equipment supplied hereunder shall be free of defects in material and workmanship, shall
comply with the then-current product specifications and product literature, and if applicable, shall be fit
for the purpose specified in the agreed-upon quotation or proposal document. If (a) Seller’s goods prove
to be defective in workmanship and/or material under normal and proper usage, or unfit for the purpose
specified and agreed upon, and (b) Buyer’s claim is made within the warranty period set forth above,
Buyer may return such goods to GAI-Tronics’ nearest depot repair facility, freight prepaid, at which time
they will be repaired or replaced, at Seller’s option, without charge to Buyer. Repair or replacement shall
be Buyer’s sole and exclusive remedy. The warranty period on any repaired or replacement equipment
shall be the greater of the ninety (90) day repair warranty or one (1) year from the date the original
equipment was shipped. In no event shall GAI-Tronics warranty obligations with respect to equipment
exceed 100% of the total cost of the equipment supplied hereunder. Buyer may also be entitled to the
manufacturer’s warranty on any third-party goods supplied by GAI-Tronics hereunder. The applicability
of any such third-party warranty will be determined by GAI-Tronics.
Services. Any services GAI-Tronics provides hereunder, whether directly or through subcontractors,
shall be performed in accordance with the standard of care with which such services are normally
provided in the industry. If the services fail to meet the applicable industry standard, GAI-Tronics will
re-perform such services at no cost to buyer to correct said deficiency to Company's satisfaction provided
any and all issues are identified prior to the demobilization of the Contractor’s personnel from the work
site. Re-performance of services shall be Buyer’s sole and exclusive remedy, and in no event shall GAITronics warranty obligations with respect to services exceed 100% of the total cost of the services
provided hereunder.
Warranty Periods. Every claim by Buyer alleging a defect in the goods and/or services provided
hereunder shall be deemed waived unless such claim is made in writing within the applicable warranty
periods as set forth above. Provided, however, that if the defect complained of is latent and not
discoverable within the above warranty periods, every claim arising on account of such latent defect shall
be deemed waived unless it is made in writing within a reasonable time after such latent defect is or
should have been discovered by Buyer.
Limitations / Exclusions. The warranties herein shall not apply to, and GAI-Tronics shall not be
responsible for, any damage to the goods or failure of the services supplied hereunder, to the extent
caused by Buyer’s neglect, failure to follow operational and maintenance procedures provided with the
equipment, or the use of technicians not specifically authorized by GAI-Tronics to maintain or service the
equipment. THE WARRANTIES AND REMEDIES CONTAINED HEREIN ARE IN LIEU OF AND
EXCLUDE ALL OTHER WARRANTIES AND REMEDIES, WHETHER EXPRESS OR IMPLIED BY
OPERATION OF LAW OR OTHERWISE, INCLUDING ANY WARRANTIES OF
MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
Return Policy
If the equipment requires service, contact your Regional Service Center for a return authorization number
(RA#). Equipment should be shipped prepaid to GAI-Tronics with a return authorization number and a
purchase order number. If the equipment is under warranty, repairs or a replacement will be made in
accordance with the warranty policy set forth above. Please include a written explanation of all defects to
assist our technicians in their troubleshooting efforts.
Call 800-492-1212 (inside the USA) or 610-777-1374 (outside the USA) for help identifying the
Regional Service Center closest to you.
(Rev. 10/06)
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