GAI-Tronics 12550-102 User Manual
Pub. 42003-149
GAI-TRONICS® CORPORATION
A HUBBELL COMPANY
Receiver/Amplifier Replacement Kit
MODEL 12550-102
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 which is conf idential and propriet ary to GAI-Tronics. GAI - Tronic s
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 used on the following model sta tions:
• 10450-003 • 10450-102 • 472-001 • 473-001 • 476-001 • 477-001 • 478-002
• 10450-101 • 10450-202 • 472-002 • 473-002 • 476-002 • 477-002
The Model 12550-102 kit includes the following components:
Description
Qty
1 Handset SMT PCBA
1 Headset receiver
2 Screw
2 Brass eyelet
Installation
Removing the Old Receiver
1. Unscrew the microphone cap , and remove the
microphone ass embly and nylon was her.
2. Loosen t he t wo screws on the micr ophone
assembly, and remove the three blac k wires a nd
brown wire. L oc ate the s plice connection of the
two white wir es . Remove the vinyl electrical tap e
fr o m the splice, a n d remove t h e l arger wh i te wire
(r eceiver wir e) fr o m the ju mper c lip. See Figure
1.
OTE: On older stations, the brown wire is
N
replaced by a green wir e.
Figure 1. J umper Clip Installation
GAI-Tronics Corporation P.O. Box 1060, Reading, PA 19607-1060 USA
610-777-1374 800-492-1212 Fax : 610-796-5954
ISIT WWW.GAI-TRONICS.COM FOR PRODUCT LITERATURE AND MANUALS
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Pub. 42003-149
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ODEL 12550-102 RECEIVER AMPLIFIER REPLACEMENT KIT Page: 2 of 3
3. Remove the two sc rews that s ec ure the handset page swit ch to the handset. Ca refully remove the page
switch c over plate, actuat or cover, retur n spri ng, ac tua tor, and contact enclosure fr om t he handset
handle. See Figure 3.
4. Unscrew the receiver ca p , and c arefu lly remove the receiver/amplifier assembly.
5. Discard t he old receiver and amplifier assembly.
Installing the New Receiver and Amplifier PCBA
1. Place the new r eceiver element o n a fl at surface, and i n stall the a mplifier pri n ted circuit boa rd assembly
(PCBA) on the receiver using the brass eyelets and screws provided as shown in Fi gure 2.
Figure 2. Receiver/Amplifier I ns tallation Diagra m
2. Carefully ins ert t he wires fr om t he amplifier P CBA into t he handset handle (bla c k and br own wires go
to the microphone ca vity, and the white wir e goes to the page switch c utout midway on the handle).
3. Ins ert the a mplif i er P CBA in to t h e recei v er cavity of the handset handle u n til the r eceiver is pro per l y
seated i n the handset.
4. Rep l ace the receiver cap.
5. Insert the sp ade termina l f rom the receiver white wire into t he ju mper clip, along with the white wire
from the coil cord. See Figure 1. Tape the jumper clip with vinyl electrical tape.
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