GAI-Tronics 12250-004 User Manual

Pub. 42003-204A

GAI-TRONICS® CORPORATION

A HUBBELL COMPANY

Volume Level Control Receiver Assembly

(24 V DC) Replacement Ki t

MODEL 12250-004

Confidentiality Notice

This manual is pr ovided s olely as a n op erat ional, installation, and maintenance guide and contains sens itive
bus ines s and t echnic al infor ma tion tha t is confident i al and p roprietary to G AI-Tronics. GAI-Tronics
retains a ll intellectual pr operty and other rights in or to t he inf ormation c ontained herein, and s uch
informa tion may only be used in connection wit h the operation of you r GAI- Tronic s pr oduct or system.
This ma nual may not be disclosed in any form, in whole or in p art, dir ec tly or indirectly, to any t hird pa rty.

General Information

This kit is for use on t he following 24 V dc ha ndset/speaker amplifiers and s peaker amplifiers with the
corresponding p rinted circuit boa rd assembly (P CBA):

24 V DC
Amplifiers
Model No.

701-103 69701-102
701-203 69701-005
701-207 69701-011
701-307 69701-015
713-102 69713-202
723-003 69723-202
751-002 69701-012

OTES:

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1. This volume level control (VLC) kit can be us ed on older G AI - Tronic s amplifiers (not listed); however ,

it is not recommended. Amplifier models not inc l u ded on t he lis t on pa ge 1 have been obsolet e s inc e
the 1987–1989 time period, and replacement parts for them are available on a limited basis. If the
VLC is to be installed in a stat ion with an older amplifier, replace amplifier with a listed model
(possibly switching amplif iers from a location that does not requ ire a VLC and has a newer , list ed
amplifier).

PCBA No.

GAI-Tronics Corporation P.O. Box 1060, Reading, PA 19607-1060 USA

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

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

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2. All agency ap provals are nullified with the addition of VL C as sembly, if not f actory installed.

This kit includes the following components:

Qty Description

1 Volume Level Control Receiver Assembly (for 24 V dc app lic ations only)
2

Screw, 6-32 × ¼-inch PHMS
1 Resistor, ¼-watt, 5%
1 Templa te (for loc ating drilling holes)
1 Tie Wrap

OTE: All items contained in t his kit may not b e required in a ll insta llations .

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Installation

Models 701-103, 701-203, 701-207, 701-307, 713-102, 723-003 and 751-002

Figure 1. VLC Assembly

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Figure 2. VLC PCBA Component Loc ation

Disassemb ly

1. Loosen the four front p anel screws, and remove the a mplif ier fr om the enclosur e.

2. Loosen the f our s c rews on the s i de, and s lide t he chass is to remove the front panel. I f the unit does not

conta i n a handset, immediat ely s et the front pa nel aside.

3. If the u nit contains a hands et , disconnect the wir es at t he p rinted circui t boa rd assembly (P CBA), and

set t he front p anel aside. Note the wire color and location prior to removal to a llow f or eas ier re­assembly.

OTE: Skip Step 4 if the amplifier does not have a c hassis-mounted transformer.

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4. Pla ce the chassis on the bench with the connector toward you. Dis c onnec t the transformer by removing

the two mount ing screws. Disconnect the 6-pin Molex connector from the PC BA, and s et it a side.

CAUTION

Removal of the PCBA befor e dr illing is advisable.

5. Loosen the two screws holding the a mp henol connector to the cha ssis .

6. Using pliers, press the plastic standoffs through the back of the chassis to remove the PCBA. Set the

PCB A aside. B e careful not to brea k the standoffs when p ushing them through.

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7. Tu rn the chassis over. W i th the connect or opening at the top of the chassi s, place the t emplate a long

the right edge of the chassi s as shown on the diagram. Refer to Figu re 3 below.

Figure 3. Template 25354

8. With the t emplate in pla c e, carefully center punch t he holes. Dr ill two

5

/32-inch holes, and debu rr the

opposite side.

9. Orient the PCB A with the connector at the top.

OTE: Step 10 is applicab le for models tha t have R14 installed in the off - hook det ection cir c u i try.

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See applicable models and as sociated boards in F igures 4 A, 4B, and 4C f or list ing.

10. Replace R14 by de-soldering and removing the old resistor (10,000 ohm, ¼ watt, 5%

[brown-black-orange-gold]). Insert the 4,700-ohm, ¼-watt, 5% (yellow-violet-red-gold] resistor
provided in t his kit into the PCBA, and re-solder it. Trim the resist or leads to avoid possible s horts
after re-assembly. See Figure 4.

11. De-solder and remove the W-3 jump er (0-ohm r es istor ) between E25 and E26. S ee a pplica ble model in

Figure 4.

12. Remove solder f rom the following pads wit h a solder remover tool. If a s older remover tool is not

available, use a solder wick to remove the solder: E23, E24, E25, E26, E28, and E31.

OTE: P1 connections do not requ ire removing the solder. Heat the p in with the soldering iron, and

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push the wire in.

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Re-assemb ly

13. Wire connections from the VLC are t o be soldered to the PCBA. See applica ble model and PC boar d

in Figure 4.

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OTE: “E” locations may vary slightly f rom what is shown in Figure 4; however, the connections

re main the same.
Black E28

Red E31
Brown E24
White E26
Green E23
Yellow E25

Red/Blu e P1 ( L 1) Refer to applica ble model and PC boar d in Figure 4.
Blue/Red P1 (L2) Refer to applicable model and PC board in Figure 4.

Figure 4. W iring Details

14. Replace the PCBA by inserting the amphenol connector in the chas sis opening and pr es sing it int o

place. Push the s tandof f s through the chass is, and reti ghten the two screws holding the amphenol
connector to t he chass is.

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15. Connect the pur ple wire fr om t he front p anel to E7 on the PCBA, if applica ble. On PCBA assembly

69701-015, connect one of the ma gnet i c reed hookswitc h wires from the front pa nel to E7 on the
PCB A. Connect the other wire to E5 on the PCB A. On PCBA as semblies, (69701-011 a nd
69701-015) ensure that the clip is bent inward to the board to prevent shorting any adjacent
component.

16. Pla c e the VLC mount i ng f lange between the chass is and t he PCBA, and align it with t he holes. Insert

two 6-32 × 1/4-inch screws, and tighten them. Recheck the purple wire at E7 of the PCBA for
clear ance fr om a djacent component s, if applicable.

17. If the u nit has a hands et, pick up t he front p anel, and position it so the remaining handset wires ca n be

hooked up to the PCB A. For ease of insta llation, the handset wires are color coded as follows:
White E1

Black E2
Green E3
Red E4
Yellow E5
Blue E6

18. Reinsta ll the transformer on the chass i s using the 2 screws r emoved previously. The blu e and br own

wires on the transformer shou ld be facing up, or the chassi s will not close.

19. Rec onnect the 6-pin Molex connec tor t o the PCB A.

20. Dress the VLC wires, and secure them with the tie wrap included in this kit.

21. Mount the front panel to the chassis, and tighten the 4 screws.

22. P lug the amplifi er into t h e enclos ure, a n d tighten th e 4 sc rews .

OTES:

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1. Speaker a djustment f or norma l opera tion remains under the nameplate on the fr ont pa nel and does not

change wit h the additi on of the VLC. The s peaker adjustment for the VLC is fac tory s et and can be
var i ed by adjus ting the level potentiometer on the VLC ass embly.

2. When an a larm is broadcas t and is accompanied by a VL C (50 kH z ) signal on the page line, it tr iggers

®

the volume on the Page/P arty

VLC amplifier to increase. GAI-Tronics Model 800 and 1200 Series
cone spea ker as semblies are normally u sed for indoor ap plicat ions with low a mbi ent noise, su c h as
offices, cor ridor s, a nd c ontrol rooms. These sp eakers have a manual, wall-mounted remote volume
level control.

®

When these speaker s are p owered by a Pa g e/Party

VLC amplif ier, and the volume level is manually
turned down using t he wall-mounted r emote volume level control, t he s ignal that increases the volume
on the VLC amplifier will not bypass the manual setting. These s peakers remain “turned down,”
regardless of the outp ut signal of the amplifier, and the alarm broadcast level does NOT incr ease on the
cone speaker assemblies.

The Model 800 and 1200 Series speakers can be used in emergency notification systems; however, we
suggest tha t the cus tomer NOT inst all the wall- mounted remote volume level control f or this type of
application.

3. DO NO T READJUST the frequ ency potentiometer on the VLC assembly.

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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)