Ericsson PCS User manual

LBI-38957A
Table of Contents
Front Assembly (Front Cap Assembly &
Audio Logic Board) . . . . . . . . . . . . . . . . . . . . . LBI-38975
Rear Assembly (RF Board) . . . . . . . . . . . . . . . . . LBI-38276
Service Section . . . . . . . . . . . . . . . . . . . . . . . LBI-38661
Maintenace Manual
PCS
403-512 MHz
Synthesized Portable Radio
ericssonz

Copyright © April 1994, Ericsson GE Mobile Communications Inc.
This manual covers Ericsson and General Electric products manufactured and sold by Ericsson Inc.
NOTICE!
Repairs to this equipment should be made only by an authorized service technician or facility designated by the sup-
plier. Any repairs, alterations or substitution of recommended parts made by the user to this equipment not approved
by the manufacturer could void the user’s authority to operate the equipment in addition to the manufacturer’s war-
ranty.
NOTICE!
This manual is published by Ericsson Inc., without any warranty. Improvements and changes to this manual necessi-
tated by typographical errors, inaccuracies of current information, or improvements to programs and/or equipment,
may be made by Ericsson Inc., at any time and without notice. Such changes will be incorporated into new editions of
this manual. No part of this manual may be reproduced or transmitted in any form or by any means, electronic or me-
chanical, including photocopying and recording, for any purpose, without the express written permission of Ericsson
Inc.
The software contained in this device is copyrighted by the Ericsson Inc. Unpublished rights are reserved under the
copyright laws of the United States.
NOTICE!
LBI-38957
2

TABLE OF CONTENTS
Page
SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
FCC Filing Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Transmitter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Receiver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
OPTIONSANDACCESSORIES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Radio Programming . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Standard Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
CONTROLS AND INDICATORS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Transmit Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Receive Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Alert Tones . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
RADIO OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
To Receive AMessage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
To Send A Message . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
To Place ADTMF Call . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
OPERATIONALFEATURES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Automatic Number Identification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Type 99 Tone . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Channel Busy Lock-Out . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
SCAN OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Scan Vocabulary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Pre-Scan Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Scan Operating Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Simple SCAN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Priority SCAN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Scanning for Channel Guard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
TONE PROGRAMMING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
GE Type 99 Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Motorola Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Individual Call . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Group Call (Quick Call Format) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Channel Guard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Replacement Of Battery Pack . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
To Remove the Battery Pack from the Radio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
To Re-Connect the Battery Pack to the Radio . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
RECHARGING THE BATTERY PACKS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
INTRINSICALLY SAFE USAGE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Reduced Capacity in Nickel/Cadmium Batteries . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Disposal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
MECHANICAL PARTS BREAKDOWN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
MECHANICAL PARTS LIST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
LBI-38957
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SPECIFICATIONS*
FCC FILING DATA
Transmitter/Receiver
FCC Identifier
403-440 MHz AXA9MZ-PCSU1
440-470 MHz AXA9MZ-PCSU2
470-512 MHz AXA9MZ-PCSU3
FCC Part Numbers 22, 74, 80, 90, 95
GENERAL
Frequency Range 403-512 MHz
RF Power Range 1-4 Watts
Input Voltage 6.0 to 9.0 Volts
Channel Capacity 2, 8, or 16 Channels
Frequency Spread (Full Performance)
TX Full Split
RX 20 MHz of Split
Frequency Stability ±5 PPM
Channel Spacing 25 kHz
Dimensions (less antenna) H x W x D
with 1200 mAh Battery 7.4 x 2.8 x 1.57 inches (18.8 x 7.11 x 4.0 cm)
with 1700 mAh Battery 8.8 x 2.8 x 1.57 inches (22.35 x 7.11 x 4.0 cm)
Weight
Radio (less battery) 11 ounces
1200 mAh Battery 9 ounces
1700 mAh Battery 13.5 ounces
Ambient Temperature Range -30° to +60°C (-22° to +140°F)
Battery Drain (7.5 VDC)
Receiver Standby 70 milliamperes
Receiver Full Audio 250 milliamperes
Transmit (@4 watts) 1.7 amperes
Transmit (@2 watts) 1.3 amperes
Battery Life (between charges) High Capacity Extra High Capacity
Hi Power (5-5-90% duty cycle) 8.0 hours 11.0 hours
Lo Power (5-5-90% duty cycle) 9.0 hours 13.0 hours
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TRANSMITTER
Power Output
Hi Power 4 watts
Lo Power 2 watts (adjustable to 1 watt)
Conducted Spurious -66 dB (-30 dBm)
Modulation Deviation ±5.0 kHz (maximum)
FM Noise (companion receiver method) -45 dB
Power Adjust Range 1 to 4 Watts
Distortion 5% (maximum)
Deviation Symmetry 0.1 kHz
RF Load Impedance 50 Ohms
Carrier Attach Time 35 milliseconds
Audio Attach Time 35 milliseconds
RECEIVER
Audio Output (EIA) 0.5 Watts (<5% distortion)
Sensitivity
12 dB SINAD (EIA) -119 dBm (0.25 µV)
Selectivity
(EIA 2-signal method) -65 dBm @ ±25 kHz
Spurious Response -70 dB
Intermodulation -65 dB
Hum and Noise
Squelched -80 dB
Unsquelched -48 dB
ModulationAcceptance ±7 kHz
Frequency Response Within +2 dB and -8 dB of a standard 6 dB/octave
de-emphasis curve from 300 to 3000 Hz (EIA).
RF Input Impedance 50 Ohms
* These specifications are intended primarily for use by service personnel. Refer to the appropriate Specification Sheet for
complete specifications.
LBI-38957
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OPTIONSANDACCESSORIES
BATTERY PACKS
DESK CHARGERS
PCPA1J
High Capacity
(19A705293P1)
PCPA1K
Extra High Capacity
(19A705293P2)
PCPA1L
Extra High Capacity
(19A705293P3)
Factory Mutual Approved
Standard
CHISS1 (120 VAC)
CHISS2 (230 VAC)
ANTENNA (Helical)
PCNC3C 19B801620P1 (403-440 MHz)
PCNC3D 19B801620P2 (440-470 MHz) Factory Mutual Approved
PCNC3F 19B801620P3 (470-512 MHz)
Rapid
CHIRS1 (120 VAC)
CHIRS2 (230 VAC)
LBI-38957
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OPTIONSANDACCESSORIES
(continued)
CARRYINGACCESSORIES
(Factory Mutual Approved)
Belt Clip
PCHC1C
(Option Package 19B233241G1)
(Modification Kit 19A144704G1)
Swivel Plate
PCHC1D
(Belt Loop 19B226627G2)
(Swivel Option 19B233243G1)
Earpiece Kit
PCZM1A
Incudes PCPA1C
Accessories Connector
PCAC1C (19C851752P7)
Speaker/Microphone
PCAE1X
ANTENNA(Flexible Whip)
PCNC3A19B801621P1 (403-470 MHz) Factory Mutual Approved
PCNC3B 19B801621P2 (470-512 MHz) Factory Mutual Approved
LBI-38957
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OPTIONSANDACCESSORIES
(continued)
CARRYING CASES
(Factory Mutual Approved)
PCHC5S
High Capacity Battery Pack
Full Cover 19D902456P15
PCHC5T
High Capacity Battery Pack
Retaining Strap 19D902456P7
PCHC5U
Extra High Capacity Battery Pack
Full Cover 19D902456P18
PCHC5V
Extra High Capacity Battery Pack
Retaining Strap 19D902456P7
LBI-38957
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DESCRIPTION
The PCS Portable radio is a small, ruggedly constructed,
two-way FM radio, housed in an aluminum and Lexan case.
The UHF synthesized radios operate in the 403-512 MHz
range and they can be purchased with 2-, 4-, 8-, or 16-chan-
nel operation.
Operating controls for the radio are provided through a
rubber keypad on the side and front (a three-button keypad
on the Standard version). All keypad switches have a good
tactile feel and are sealed to provide weather protection.
When turned "ON," the radio powers-up on the last channel
used and at the last volume setting. The operating controls,
UDC, and battery pack are shown in Figure 1.
All the PCS radios are equipped with a Universal De-
vice Connector (UDC) for connecting external options and
for programming the radios. The radios are programmed
using a personal computer and programming interface box
that connects to the UDC. The UDC is covered with a rub-
ber cover for improved weather protection.
The PCS uses a BNC antenna connector. The antenna
base is overmolded to fit flush against the housing for added
weather protection.
The radio battery pack securely latches in place at the
bottom of the radio. The radio ON/OFF switch is located
on the battery pack.
A Liquid Crystal Display (LCD) on the front of the ra-
dio shows the selected channel, volume level, SCAN mode
(SCN)*, and priority level (P1, P2, or S). The 2-channel ra-
dio uses the "P1" and "P2" pixels for high and low transmit
power indicators, respectively. In addition, the "S" pixel is
used to indicate "Talkaround" mode. The LCD also has a
transmit (TX) indicator, a low battery voltage indicator
(BAT), and a Type 99 paging (PG) indicator. There are
eight (8) levels of volume represented by the four (4) bars in
the LCD. Each bar represents two (2) volume levels. The
LCD module is backlit for night viewing and is mounted in
a rubber seal for weather protection.
The radio is shipped from the factory with the high
power level set to 4 watts and the low power level set to 2
watts.
*SCAN applies to the 4-, 8- and 16-channel PCS radios.
RADIO PROGRAMMING
Each of the 4-, 8- or 16-channel radios can be pro-
grammed for SCAN operation, and HOME Channel or
Emergency Channel, in addition to the Tone or Digital
Channel Guard, Squelch Tail Elimination (STE), Type 99
Tone Decoding, Automatic Number Identification (ANI),
Channel Busy Lock-Out, and HI/LO transmit power level
available on the conventional 2-channel radio. These op-
tions can be programmed on a channel-to-channel basis.
Two different T99 Tone tables can be programmed into the
PCS. Each channel is capable of Individual, Group, or Su-
per Group Decode.
Other programmable features include: Carrier Control
Timer (CCT), display backlighting, and alert beep options.
These features can be programmed, as desired, to meet sys-
tem requirements.
Refer to the programming manual (TQ3366) for com-
plete programming instructions.
ASSEMBLY
The PCS personal radio consists of an RF board
mounted in the rear assembly, an audio/logic board mounted
in the front assembly, and a control frame assembly.
The RF board contains all transmit, receive, and synthe-
sizer circuits. The audio/logic board contains all transmit
audio and receive audio circuits as well as all logic and con-
trol circuits. A microprocessor on the audio/logic board
generates and decodes all tones used in Channel Guard or
Type 99 tone signalling.
The control frame assembly mounts in the radio front
cover and provides the following functions:
•Audio/Logic board interface.
•Microphone and speaker connections.
•Houses the channel up/down, volume up/down,
monitor, and PTT switches.
When the battery is low, the low battery indicator
(BAT) is displayed on the LCD and an audio alert is
sounded every 7.5 minutes. When the battery is suf-
ficiently low to cause improper operation, the radio
microprocessor terminates all operation.
NOTE
LBI-38957
9

•UDC interface to the outside of the radio for external
options and customer programming.
•Houses the LCD module for status display.
Refer to the Interconnection Diagram (listed in the Table
of Contents of the Service Section of this manual) for all
circuit board and control frame connections.
STANDARD FEATURES
In addition to dual-priority SCAN (in 4-, 8- and 16-
channel operation), Channel Guard, Digital Channel Guard,
STE, ANI, Type 99 Decode, and transmitter power level set-
tings, the PCS radio includes the following standard fea-
tures:
1. Monitor Allows the operator to monitor channel
activity before transmitting by disabling
either Channel Guard or the squelch cir-
cuit.
2. Carrier
Control
Timer
The Carrier Control Timer is program-
mable from 15 to 225 seconds in 15 sec-
ond increments or it can be disabled.
3. Channel
Busy
Lock-Out
This feature prevents the operator from
transmitting a message on a busy chan-
nel.
4. Radio
Memory The radio memory recalls the last radio status such as the last volume level,
channel selected, and SCAN status.
These settings are stored in memory
while the radio is turned off.
5. Surveillance
Feature The earphone, external microphone in- put, and PTT options are available for
surveillance purposes.
6. TalkAround Each channel in the 2-channel radio can
be put into Talk Around mode. The 4-,
8- and 16-channel radios can be pro-
grammed for a Talk Around channel.
7. Power Set The TX power set on the 2-channel ra-
dio can be toggled between 2 and 4
watts. Power can be set by the PC pro-
grammer for all radios.
8. Audio Alert
Beep Usual alert beeps will not be sounded when this feature is disabled. However,
the T-99, P1 priority, and ANI end beeps
will be sounded.
9. LCD
Backlight On the 2-channel radio, the backlight can be turned on by pressing the ∧but-
ton. The backlight will remain illumi-
nated as long as the button is pressed
and will remain illuminated for 5 sec-
onds after the button has been released
(provided the button was pressed for at
least 1 second). Backlight will not be
turned on when this feature is disabled.
In the 4-, 8- and 16-channel radios,
LCD backlighting is turned on every
time a control button is pressed (channel
select, volume up/down, and monitor)
and remains on for another 5 seconds
after the control button is released (pro-
vided the control button was pressed for
at least one second). Backlighting is
turned off while transmitting and will il-
luminate again for 5 seconds after the
PTT is released.
10. Self-Test The PCS radio is equipped with a self-
test feature that is performed during
power-up of the unit. A good self-test is
indicated by a series of three (3) beeps,
if enabled, followed by the last radio
status on the LCD. All of the display
segments are turned on during the three
beeps. Abad self-test will cause all dis-
play segments to remain on and no
beeps will be sounded.
11. Battery
Voltage Level The BAT display is illuminated any time the battery voltage level drops be-
low the low level (6.3 volts). BAT is
displayed and continues to be displayed
on the LCD until the battery is charged
or a fresh battery pack is connected. An
audio alert is also sounded every 7.5
minutes while the BAT display is illu-
minated.
When the battery voltage goes low while transmitting,
BAT will be displayed and will continue to be displayed af-
ter returning to the receive mode. BAT will be turned off af-
ter 5 seconds unless the battery voltage level is also low in
the receive mode.
Below 6.3 volts, BAT will continue to be displayed.
End of battery is considered to be 5.8 volts. This level will
allow at least one hour of EIA operation. The radio will
continue to operate at reduced power levels below 5.8 volts.
Below 5 volts, radio operation is completely disabled to pre-
vent corruption of the radio personality.
LBI-38957
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