Section 5. Installation
5-6
INSTALLING THE SELCALL OPTION
The upgrade kit for the Selcall option (950-9957) consists of two ICs and can be
installed in the field. The Selcall option also includes all of what would be the
APO extensions in a normal Model 30 as well.
Note: As part of this installation, all programming in the Model 30 will be reset
to factory default values. For this reason it is necessary that all of the
unit’s current programming be documented prior to installing the Selcall
option so it may be re-entered after the installation is complete.
1.
Document all current programmable parameters.
2.
Remove the Model 30 from service. Disconnect all cables to the unit.
3.
Remove the top cover of the unit. Locate the large, 40-pin IC designated
U12. With the front of the unit facing you it will be in the front, right
corner, right behind the TRANSMIT and POWER LEDs. Make a note of
which way it is oriented.
4.
Gently remove the IC U12 from its socket. Use caution not to damage the
IC or its socket. Set this IC aside.
5.
Remove the upgrade IC from its package. This is a static sensitive part, so
use appropriate precautions. Locate the orientation marks on the IC that
identify the end with pin 1 (these will most likely take the form of a notch in
the end or large dot in one corner, DO NOT use the printed label as a
reference). Carefully insert the IC in socket U12 with pin-1 facing the rear
of the unit.
6.
Locate IC socket U8, near U12. If it is empty, fill this socket (or replace the
existing IC) with the 8-pin IC from the update kit. Its orientation notch
should face the left-hand side of the unit.
7.
After confirming that all the pins on the IC are correctly placed, press the IC
firmly in place. Replace the top cover on the unit. No other adjustments are
necessary.
8.
Reconnect the cabling to the unit. Before applying power, press and hold the
CONNECT button. Apply power to the unit and continue to hold the
CONNECT button in until the PHONE LED begins blinking rapidly. This
indicates that all programmable memory has been reset to factory default
values.
9.
Reprogram the unit, set up the paging formats, and place the system back in
service.
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