GAI-Tronics 12250-002 User Manual

Pub. 42003-203B

GAI-TRONICS® CORPORATION

A HUBBELL COMPANY

Volume Level Control Receiver Assembly

(120 V AC) Replacement Kit

MODEL 12250-002

Confidentiality 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. GAI­Tronics 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 kit is for use on the following 120 V ac handset/speaker amplifiers and speaker amplifiers with the
corresponding printed circuit board assembly (PCBA):

Table 1. 120 V AC Handset/Speaker Amplifier

and Speaker Amplifier PCBA List

Amplifier

Model No.

651-001 69650-101
701-101 69701-101, 69701-007
701-102 69701-101, 69701-007
701-201 69701-004, 69701-007
701-202 69701-004, 69701-007
701-204 69701-006, 69701-009
701-205 69701-006, 69701-009
701-302 69701-008
701-304 69701-014
713-101 69713-201
723-001 69723-101, 69723-201
751-001 69701-010

PCBA No.

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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NOTES:

1. This volume level control (VLC) kit can be used on older GAI-Tronics amplifiers (not listed);

however, it is not recommended. Amplifier models not included on the list on page 1 have been
obsolete since 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 station with an older amplifier, replace amplifier with a listed
model (possibly switching amplifiers from a location that does not require a VLC and has a newer,
listed amplifier).

2. All agency approvals are nullified with the addition of VLC assembly, if not factory installed.

This kit includes the following components:

Qty Description

1 Volume Level Control Receiver Assembly (for 120 V ac applications only)
2

Screw, 6-32  ¼-inch PHMS
1 Resistor, ¼-watt, 5%
1 Template (for locating drilling holes)
1 Tie wrap

N

OTES: All items contained in this kit may not be required in all installations.

Installation

Figure 1. VLC Assembly

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Figure 2. VLC PCBA Component Location

Disassembly

1. Loosen the four front panel screws, and remove the amplifier from the enclosure.

2. Loosen the four screws on the side, and slide the chassis to remove the front panel. If the unit does

not contain a handset, immediately set the front panel aside.

3. If the unit contains a handset, disconnect the wires at the printed circuit board assembly (PCBA), and

set the front panel aside. Note the wire color and location prior to removal to allow for easier re­assembly.

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

N

4. Place the chassis on the bench with the connector toward you. Disconnect the transformer by

removing the two mounting screws. Disconnect the 6-pin Molex connector from the PCBA, and set
it aside.

N

OTE: On Models 701-204, 701-205, and 701-304 also disconnect the two 6-pin Molex connectors

from the PCBAs associated with the auxiliary handset jack. Make note of the connector(s) position
when removing them, as the connector(s) will be reinstalled later. Remember to save the parts.

CAUTION

Removal of the PCBA before drilling is advisable.

5. Loosen the two screws holding the amphenol connector to the chassis. If the amplifier contains a

small PCBA (Model 69072-001) mounted to the chassis, detach this by removing the four screws,
and set them aside. Note the board’s orientation.

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

PCBA aside. Be careful not to break the standoffs when pushing them through.

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7. Turn the chassis over. With the connector opening at the top of the chassis, place the template along

the right edge of the chassis as shown in Figure 3 below.

Figure 3. Template 25354

5

8. With the template in place, carefully center punch the holes. Drill two

/32-inch holes, and de-burr the

opposite side.

9. Orient the PCBA with the connector at the top.

N

OTE: Step 10 is applicable for models that have R14 installed in the off-hook detection circuitry.

Refer to applicable models and associated boards in Figure 4’s Wiring Details “4A”, “4B”, and “4C”
on page 6 for listing.

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 this kit into the PCBA, and re-solder it. Trim the resistor leads to avoid possible shorts
after re-assembly. See Figure 4.

11. De-solder and remove the W-3 jumper (0-ohm resistor) between E25 and E26. See applicable model

in Figure 4 on page 6.

12. Remove solder from the following pads with a solder remover tool. If a solder remover tool is not

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

N

OTE: P1 connections do not require removing the solder. Heat the pin with the soldering iron, and

push the wire in.

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Re-assembly

13. Wire connections from the VLC are to be soldered to the PCBA. Refer to the applicable model and

PCBA in Figure 4.

N

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

remain the same.
Black E28
Red E31
Brown E24
White E26
Green E23
Yellow E25
Red/Blue P1 (L1) Refer to applicable model and PCBA in Figure 4.
Blue/Red P1 (L2) Refer to applicable model and PCBA in Figure 4.

14. Replace the PCBA by inserting the amphenol connector in the chassis opening and pressing it into

place. Push the standoffs through the chassis, and retighten the two screws holding the amphenol
connector to the chassis. Reinstall the Model 69072-001 PCBA, if applicable.

15. Connect the purple wire from the front panel to E7 on the PCBA, if applicable. On PCBA

assemblies 69701-008 and 69701-014 connect one of the magnetic reed hookswitch wires from the
front panel to E7 on the PCBA. Connect the other wire to E5 on the PCBA. On PCBA assemblies,
(new Model 69701-007, 69701-008, 69701-009, and 69701-014) ensure that the clip is bent inward to
the board to prevent shorting any adjacent component.

16. Place the VLC mounting flange between the chassis and the PCBA, and align it with the holes.

Insert two 6-32  ¼-inch screws, and tighten them. Recheck the purple wire at E7 of the PCBA for
clearance from adjacent components, if applicable.

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Figure 4. Wiring Details

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13. If the unit has a handset, pick up the front panel, and position it so the remaining handset wires can

be hooked up to the PCBA. For ease of installation, the handset wires are color coded as follows:
White See note below.

Black E2
Green E3
Red E4
Yellow E5
Blue E6

N

OTE: For the Model 69701-006 PCBA, connect the white wire to E18.

For the Model 69701-009 and 69701-014 PCBA, connect the white wire to E41.
For all others, connect the white wire to E1.

18. If the unit is a Model 701-204, 701-205, or 701-304, reconnect the two 6-pin Molex connectors from

the front panel to the PCBA at J102 of the amplifier and to J103 of the Model 69072-001 PCBA.

19. Reinstall the transformer on the chassis using the two screws removed previously. The blue and

brown wires on the transformer should be facing up, or the chassis will not close.

20. Reconnect the 6-pin Molex connector to the PCBA.

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

OTE: Ensure that the coil cord and the purple wire (if applicable) or hookswitch wires are routed

N

away from T1, which is located in the upper left corner of the PCBA.

22. Mount the front panel to the chassis, and tighten the four screws.

23. Plug the amplifier into the enclosure, and tighten the four screws.

OTES:

N

1. 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.

2. When an alarm is broadcast and is accompanied by a VLC (50 kHz) signal on the page line, it

triggers the volume on the Page/Party

®

VLC amplifier to increase. 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.

®

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.

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.

3. DO NOT READJUST the frequency 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)