GAI-Tronics 12552-001 Rotary Switch Harness Assembly - Manual

Pub. 42003-122A
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
G A I - T R O N I C S ® C O R P O R A T I O N
A H U B B E L L C O M P A N Y
Rotary Switch Harness Assembly
Replacement Kit
M
ODEL
61504-053
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.
General Information
The Model 61504-053 Rotary Switch Harness Assembly Replacement Kit is intended for use on the
Model 478-002 Centra-Page II/Electro-Sound II (CPII/ESII) Desktop Subset.
Installation
Removing the Old Harness Assembly
1. Locate the party-line selector switch on the front panel of the subset. Use flat blade screwdriver to
pop out the cap in the center of the knob.
2. Using long-nosed pliers or a wrench, loosen, but do not remove, the hex nut inside the party-line
selector knob.
3. Remove the party-line selector knob.
4. Use the long-nose pliers or a wrench to remove and discard the collar nut securing the party-line
selector switch to the front panel.
5. Remove and save the four screws securing the housing to the bottom panel.
6. Hinge the housing forward to access the interior of the telephone. Locate the post header on the
printed circuit board marked J3 , PARTY LINE SELECT . Disengage the connector from this post
header.
7. Pull the party-line selector switch through the rear of the front panel, and discard the old harness
assembly.
8. Remove and discard the two-party line label.