Pub. 42003-160A
GAI-Tronics Corporation 400 East Wyomissing Avenue, Mohnton, PA 19540 USA
610-777-1374
n
800-492-1212
n
Fax: 610-775-6540
G A I - T R O N I C S C O R P O R A T I O N
PCBA Replacement Kit
M
ODEL
12556-001
Confidentiality Notice
This manual is provided solely as an operational, installation, and maintenance guide and contains
sensitive business and technical information which 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.
Instructions
The Model 12556-001 PCBA Replacement Kit contains one Model 69228 handset amplifier PCBA for
use in GAI-Tronics SmartHandset™ stations and SmartAmplifier™ stations.
Remove the power from the station prior to servicing
.
Removing the Old PCBA
1.
Loosen the 4 screws at the corners of the front panel, and pull the plug-in the amplifier from the
enclosure. All maintenance work from this point on should be performed at a work bench with the
operator properly grounded to avoid static discharge.
2.
Loosen the 4 chassis screws (Phillips) on the top and bottom of the unit.
3.
Carefully slide the chassis to the left, and separate it from the front panel.
The power supply harness inside is short; do not pull it apart abruptly.
4.
Remove the power supply wire harness from J6 on the Model 69241 PCBA by pressing the tab on
the locking connector.
5.
Remove the aux/subset connector at J2 from the Model 69228 PCBA (for Model 701-804 only).
6.
Disconnect the spade terminals at E1 through E7. Needlenose pliers may be required.
7.
Remove the 4 screws that secure the Model 69228 PCBA. DO NOT DISCARD THE HARDWARE.
Disconnect the assembly by grabbing the PCBA at the sides near the J1 connector. Unplug it from
the PCBA below it.
