Motorola MCS 2000 Operating instructions

MCS 2000 Mobile Radio
Service Instructions
Volume 1
Non-Frequency Range Specific
68P81083C20-A, Issued: 02.97.

ii
Computer Software Copyrights
The Motorola products described in this manual may
include copyrighted Motorola computer programs
stored in semiconductor memories or other media. Laws
in the United States and other countries preserve for
Motorola certain exclusive rights for copyrighted
computer programs, including the exclusive right to
copy or reproduce in any form the copyrighted
computer program. Accordingly, any copyrighted
MotorolacomputerprogramscontainedintheMotorola
products described in this manual may not be copied or
reproduced in any manner without the express written
permission of Motorola. Furthermore, the purchase of
Motorola products shall not be deemed to grant either
directly or by implication, estoppel, or otherwise, any
license under the copyrights, patents or patent
applications of Motorola, except for the normal non-
exclusive royalty free license to use that arises by
operation of law in the sale of a product.
Notes, Cautions, Warnings, Danger
Throughout this guide, you will notice the use of
NOTES, CAUTIONS, WARNINGS, and DANGERS. Their
use is explained below.
NOTE: A clarifying statement that
expands on the text that follows.
CAUTION indicates a potentially
hazardous situation which, if not
avoided, may result in equipment
damage.
WARNING indicates a potentially
hazardous situation which, if not
avoided, could result in death or injury.
DANGER indicates an imminently
hazardoussituation which,ifnot avoided,
will result in death or serious injury.
Safety Information
Every radio, when transmitting, radiates
energy into the atmosphere which may,
under certain conditions, cause the
generation of a spark. All users of vehicles
fitted with radios should be aware of the
following warnings (see also “Important
Electromagnetic Emission Information”
below).
• Do not operate radio near flammable liquids or in
the vicinity of explosive devices.
During normal use, the radio will subject you to radio
energy substantially below the level where any kind of
harm is reported. To ensure personal safety, please
observe the following simple rules:
• Do not transmit when the antenna is very close to,
or touching, exposed parts of the body, especially the
face and eyes.
• Do not hold the transmit (PTT) key in when not
desiring to transmit.
• Check the laws and regulations on the use of two-
way mobile radios in the areas where you drive.
Always obey them. Also, when using your phone
while driving, please:
- give full attention to driving,
- use hands-free operation, if available, and
- pull off the road and park before making or
answering a call if driving conditions so require.
Airbag Warning
An air bag inflates with great force.
Do not place objects, including
communication equipment, in the area
over the air bag or in the air bag
deployment area. If the communication
equipment is improperly installed and
the air bag inflates, this could cause
serious injury.
Installation of vehicle communication equipment
should be performed by a professional installer/
technician qualified in the requirements for such
installations.
An air bag’s size, shape and deployment area can vary by
vehicle make, model and front compartment
configuration (e.g., bench seat vs. bucket seats). Contact
the vehicle manufacturer’s corporate headquarters, if
necessary, for specific air bag information for the vehicle
make, model and front compartment configuration
involved in your communication equipment
installation.
Note
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Operational Safety Warnings
For vehicles equipped with Electronic
Ignition Systems, check the vehicle
service manual for warnings about the
use of two-way radio equipment in the
vehicle.
The radio may switch into transmit mode, immediately
upon being connected to power, if an open circuit exists
between pins 4 and 9 of the Accessory Connector. To
avoid personal injury and/or damage to the radio,
ensure that a jumper wire or an emergency switch that
has normally closed contacts is connected between pins
4 and 9 of the accessory connector before the radio is
connected to vehicle battery power or any other power
supply.
Radio Care / Handling Cautions
• Avoid physical abuse; do not pound, drop, or throw
the radio. It may damage exposed parts such as
controls and connectors.
• Do not connect accessories other than Motorola
compatible equipment, as it may damage the radio.
For a list of available compatible accessories consult
the Mobius Accessories Guide part number
68P02058U52, or the MCS 2000 Accessories Guide
part number 68P81080C47, or check with your local
Motorola representative.
• The use of a Mini UHF Adaptor can damage the RF
Antenna Connector and lead to radio failure, and is
grounds for voiding warranty.
• Operating the radio without an antenna cable
attached may lead to radio failure and is grounds for
voiding warranty.
Important Electromagnetic
Emission Information
In August, 1996, The Federal Communications
Commission (FCC) adopted an updated safety standard
for human exposure to radio frequency electromagnetic
energy emitted by FCC regulated equipment. Motorola
subscribes to this same updated safety standard for the
use of its products.
In keeping with sound installation practice and to
maximize radiation efficiency, a one-quarter (1/4) wave
length antenna should be installed at the center of the
vehicle roof. If it is necessary to mount the antenna on
the vehicle's trunk lid, an appropriate 3db gain antenna
should be used. This installation procedure will assure
that vehicle occupants will be exposed to radio
frequencyenergylevelslowerthanthelimitsspecifiedin
the standard adopted by the FCC in General Docket
79144.
To assure that radio frequency (RF) energy exposure to
bystanders external to a vehicle is lower than that
recommended by FCC adopted standard, transmit with
any mobile radio only when bystanders are at least two
(2) feet/60 cm away from a properly installed externally
mounted antenna for radios with less than 50 watts of
output power, or three (3) feet/90 cm away for radios
with 50 watts or greater power.
Control Station Operation
In the event of Control Station operation, to assure
operators and bystanders are exposed to radio frequency
(RF) energy levels lower than the limits specified in the
FCC adopted standard, the antenna should be installed
outside of any building, but in no instance shall the
antenna be within two feet/60 cm (less than 50 watts
power output) or within three feet/90 cm (50 watts or
higher power output) of station operators or bystanders.
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LP Gas Warning
It is mandatory that radios installed in
vehicles fuelled by liquefied petroleum
gas conform to the National Fire
Protection Association standard NFPA 58,
which applies to vehicles with a liquid
propane(LP) gas container inthe trunk or
other sealed off space within the interior
of the vehicle. The NFPA58 requires the
following:
• Any space containing radio equipment shall be
isolated by a seal from the space in which the LP gas
container and its fittings are located.
• Removable (outside) filling connections shall be
used.
• The container space shall be vented to the outside.
Anti-Lock Braking System (ABS)
and Anti-Skid Braking System
Precautions
Disruption of the anti-skid/anti-lock
braking system by the radio transmitter
may result in unexpected vehicle motion.
Motorola recommends the following radio installation
precautions and vehicle braking system test procedures
to ensure that the radio, when transmitting, does not
interfere with operation of the vehicle braking system.
Installation Precautions
Always provide as much distance as possible between
braking modulator unit and radio, and between braking
modulator unit and radio antenna and associated
antenna transmission line. Before installing radio,
determinelocationofbrakingmodulatorunitinvehicle.
Depending on make and model of vehicle, braking
modulator unit may be located in trunk, under
dashboard, in engine compartment, or in some other
cargo area. If you cannot determine location of braking
modulator unit, refer to vehicle service manual or
contact a dealer for the particular make of vehicle.
If braking modulator unit is located on left side of the
vehicle, install radio on right side of vehicle, and
conversely.
Route all radio wiring including antenna transmission
line as far away as possible from braking modulator unit
and associated braking system wiring.
Never activate radio transmitter while vehicle is in
motion and vehicle trunk lid is open.
Braking System Tests
The following procedure checks for the most common
types of interference that may be caused to vehicle
braking system by a radio transmitter.
1. Run vehicle engine at idle speed and set vehicle
transmission selector to PARK. Release brake pedal
completely and key radio transmitter. Verify that
there are no unusual effects (visual or audible) to
vehicle lights or other electrical equipment and
accessories while microphone is NOT being
spoken into.
2. Repeat Step 1. except do so while microphone IS
being spoken into.
3. Press vehicle brake pedal slightly just enough to
light vehicle brake light(s). Then repeat Step 1.
and Step 2.
4. Press the vehicle brake pedal firmly and repeat
Step 1. and Step 2.
5. Ensure that there is a minimum of two vehicle
lengths between front of vehicle and any object in
vehicle’s forward path. Then, set vehicle
transmission selector to DRIVE. Press brake pedal
just far enough to stop vehicle motion completely.
Key radio transmitter. Verify that vehicle does not
start to move while microphone is NOT being
spoken into.
6. Repeat Step 5. except do so while microphone IS
being spoken into.
7. Release brake pedal completely and accelerate
vehicle to a speed between 15 and 25 miles/25 and
40 kilometers per hour. Ensure that a minimum of
two vehicle lengths is maintained between front of
vehicle and any object in vehicle’s forward path.
Have another person key radio transmitter and
verify that vehicle can be braked normally to a
moderate stop while microphone is NOT being
spoken into.
8. Repeat Step 7. except do so while microphone IS
being spoken into.
9. Release brake pedal completely and accelerate
vehicle to a speed of 20 miles/30 kilometers per
hour. Ensure that a minimum of two vehicle
lengths is maintained between front of vehicle and
any object in vehicle’s forward path. Have another
person key radio transmitter and verify that
vehicle can be braked properly to a sudden (panic)
stop while microphone is NOT being spoken into.
10. Repeat Step 9. except do so while microphone IS
being spoken into.
11. Repeat Step 9. and Step 10. except use a vehicle
speed of 30 miles/50 kilometers per hour.
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Table of Contents
1 - Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
Scope of this Manual. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-1
Related Publications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-1
Manual Revisions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-1
Model Numbering System. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-2
List of Models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-3
Kit-To-Model Structure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-5
Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-6
2 - Basic Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-1
Preventive Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-1
Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-1
Cleaning. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-1
Safe Handling of CMOS Devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-2
Precautions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-2
Parts Replacement and Substitution . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-3
Rigid Circuit Boards. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-3
Specific. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-3
Audio PA Component Replacement Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-4
For High Power Models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-4
Antenna/Power Connector Replacement Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-5
For Low, Mid, and High Power Models. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-5
3 - Test Equipment, Service Aids, and Tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
Recommended Test Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-1
Service Aids and Recommended Tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-2
Field Programming . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-2
Connection of Control Head Extender Cable. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-4
Mid Power Chassis. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-4
High Power Chassis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-4
4 - Test Mode and Error Codes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1
Test Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-1
General. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-1
Test Mode Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-1
Test Mode Entry and Exit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-1
Error Code Displays. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-3
Power-up Display Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-3
Operational Display Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-4
5 - Disassembly & Reassembly and Replacement Procedures . . . . . . . . . . . . . . . . . . . . . . . 5-1
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-1
Disassembly to Transceiver Board Level Low and Mid Power Models . . . . . . . . . . . . . . . . . . . . . . . .5-1
Remove the Control Head. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-1
Remove Front Housing R
EMOTE
M
OUNT
V
ERSION
M
ODELS
O
NLY
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2
Remove the Top Cover L
OW
P
OWER
M
ODELS
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2
M
ID
P
OWER
M
ODELS
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2
Remove the Cavity Shield L
OW
P
OWER
M
ODELS
O
NLY
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3

vi
Remove the PA Shield L
OW AND
M
ID
P
OWER
M
ODELS
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-4
Remove the Transceiver Board E
XCEPT
800 MH
Z AND
900 MH
Z
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-4
Remove the Transceiver Board 800 MH
Z AND
900 MH
Z
M
ODELS
O
NLY
. . . . . . . . . . . . . . . . . . . . . . . . . . .5-6
Disassembly to Transceiver Board Level High Power Models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-7
Remove the Bottom Cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-7
Remove the RF Shield . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-8
Remove the PA Shield . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-9
Remove the PA Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-9
Remove the RF Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-10
Disassembly of the Control Head. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-11
Remote Mount Versions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-11
Model I . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-11
Models II & III S
TANDARD
K
EYPAD
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-11
Models II & III K
EYPAD WITH
R
EPLACEABLE
P
USH
B
UTTONS
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-11
Reassembly of the Control Head . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-13
Model I . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-13
Models II and III . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-13
Transceiver Reassembly Low and Mid Power Models. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-14
Transceiver Reassembly. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-14
Assembly of Control Head to Transceiver D
ASH
M
OUNT
M
ODELS
. . . . . . . . . . . . . . . . . . . . . . . . . . . .5-15
R
EMOTE
M
OUNT
M
ODELS
. . . . . . . . . . . . . . . . . . . . . . . . . .5-15
Transceiver Reassembly High Power Models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-16
Replaceable Pushbuttons Replacement Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-20
Models II & III K
EYPAD WITH
R
EPLACEABLE
P
USHBUTTONS
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-20
6 - Radio Tuning Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1
Tuning Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-3
Reference Oscillator Alignment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-3
Transmitter Power. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-4
Transmit Current Limit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-5
Transmit Deviation Balance (Compensation) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-5
Transmit Deviation Limit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-6
Transmit Deviation Limit Reference. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-7
Signaling Deviation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-7
Squelch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-9
Rated Audio. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-10
Front-End Pre-Selector. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-10
7 - Controller Section Theory of Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-1
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-1
Theory Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-1
Voltage Regulation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-2
Voltage Regulators. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-2
Electronic On/Off . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-3
Emergency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-3
Mechanical On/Off . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-4
Ignition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-4
Power Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-6
Protection features. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-8
Interfacing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-9
Microprocessor Clock Synthesizer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-9
Serial Peripheral Interface (SPI). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-9
SB9600 Serial Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-11
General Purpose Input/Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-12
Microprocessor Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-12
Normal (=Expanded) Microprocessor Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-13

vii
Bootstrap Microprocessor Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-16
Audio and Signalling Circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-17
Audio Signalling Filter IC (ASFIC). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-17
Audio Ground . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-17
Transmit Audio Circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-17
Transmit Signalling Circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-19
Receive Audio Circuits. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-21
Receive Signalling Circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-25
8 - Control Heads . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-1
Model I. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-1
Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-1
Power supplies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-1
Audio configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-1
Volume Control/On-Off . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-1
Micro-controller. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-1
Xtal Oscillator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-1
LCD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-1
Keypad . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-2
Mode Select . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-2
Multiplexer Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-2
Models II and III . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-3
Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-3
Power Supplies. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-3
Audio Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-3
Volume Control/On-Off . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-3
Micro-controller. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-4
Xtal Oscillator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-4
LCD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-4
Keypad . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-4
Rotary Switch. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-5
Mode Select . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-5
9 - Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-1
Troubleshooting Chart 1-1, Overall Radio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9-2
Troubleshooting Chart 1-2 (1 of 3), Failure Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9-3
Troubleshooting Chart 1-2 (2 of 3), Failure Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9-4
Troubleshooting Chart 1-2 (3 of 3), Failure Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9-5
Troubleshooting Chart 1-3, On/Off Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9-6
Troubleshooting Chart 1-4, TX Audio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9-7
TX Audio Routing, Simplified Schematic for Chart 1-4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9-7
Troubleshooting Chart 1-5, RX Audio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9-8
RX Audio Routing, Simplified Schematic for Chart 1-5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9-9
Troubleshooting Chart 1-6, Signalling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9-10
Troubleshooting Chart 1-7, DC Distribution . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9-11
Radio Voltage, Simplified Schematic For Chart 1-7 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9-12
Troubleshooting Chart 1-8A, Control Head Model I . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9-13
Numbers in brackets refer to accompanying troubleshooting procedure overleaf. . . . . . . . . . .9-13
Control Head I Troubleshooting Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9-14
Troubleshooting Chart 1-8B, Control Head Models II & III . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9-18
Numbers in brackets refer to accompanying troubleshooting procedure overleaf . . . . . . . . . . .9-18
Control Heads II and III Troubleshooting Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9-19
Troubleshooting Chart 1-9, Clock Distribution . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9-24
Troubleshooting Chart 1-10, SB9600 BUS RX . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9-25
Troubleshooting Chart 1-11, SB9600 BUS RX . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9-26
SB9600 Voltage Table for Charts 1-10 & 1-11 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9-26
SB9600 BUSY, Simplified Schematic for Charts 1-10 & 1-11 . . . . . . . . . . . . . . . . . . . . . . . . . . . .9-27

viii
SB9600, Simplified Schematic for Charts 1-10 & 1-11 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-27
Troubleshooting Chart 1-12, GPIO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9-28
Troubleshooting Chart 1-13 (1 of 2), Power Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9-29
Troubleshooting Chart 1-13 (2 of 2), Power Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9-30
10 - Diagrams and Parts Lists. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-1
Notes on Sheet Port Connections, Circuit Block Port Connections and Physical Connectors. . . .10-2
Schematic Hierarchy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-2
Low Power Radios Exploded View Diagram and Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10-4
Mid Power Radios Exploded View Diagram and Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-5
High Power Radios Exploded View Diagram and Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10-6
Control Head Model I Exploded View Diagram and Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . .10-7
Control Head Model II Exploded View Diagram and Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-8
Control Head Model III Exploded View Diagram and Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-9
Control Head Model I Component Locations and Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-10
Control Head Model I Schematic Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10-11
Control Head Model II Component Locations and Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . .10-12
Control Head Model II Schematic Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10-13
Control Head Model III Component Locations and Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . .10-14
Control Head Model III Schematic Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-15
Main Controller and Audio Power Amplifier and Voltage Regulators Component Locations . .10-16
Controller Hierarchy Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-17
Main Controller Blocks Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10-18
Controller, Microprocessor Schematic Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-19
Controller, Power Control Schematic Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10-20
Controller, Audio Blocks Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-21
Controller, Hear Clear Schematic Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10-22
Controller, ASFIC Schematic Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10-23
Controller, Interface Blocks Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10-24
Controller, IO RSSI Buffers Schematic Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10-25
Controller, Emergency Ignition Schematic Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-26
Controller, SCI Drivers Schematic Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10-27
Controller, IO Buffers Schematic Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10-28
Controller, Audio Power Amplifier and Voltage Regulators, Low and Mid Power Schematic Diagram .10-29
Controller, Audio Power Amplifier and Voltage Regulators, High Power Schematic Diagram . . 10-30
Controller Parts List, Common Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10-31
Controller Parts List, Common Parts, Continued . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10-33
Controller Parts List, 800 MHz 15W Unique . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-34
Controller Parts List, 800 MHz 35W Unique . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-35
Controller Parts List, 900 MHz 12W Unique . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-36
Controller Parts List, VHF 110W Unique . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10-37
Controller Parts List, UHF1 110 W Unique . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-38
Controller Parts List, Non-Common Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10-39
Over Molded Pad Array Carriers (OMPACs). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10-40
Integrated Circuits with Pin-Out Names . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10-40
A - Glossary of Terms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-1

ix
List of Figures
RF and Power Connector Openings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5
Install Connector Retaining Clip . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5
Replace PA Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5
Dedicated Test Mode Keys on Models I, II and III . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2
Removing the Control Head . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1
Removing the Top Cover - Low Power Models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2
Removing the Top Cover - Mid Power Models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3
Removing the Cavity Shield . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3
Removing the PA Shield (Low and Mid Power Models) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-4
Removing the Transceiver Board - Low Power Models (except 800 MHz and 900 MHz) . . . . . . 5-4
Removing the Transceiver Board - Mid Power Models (except 800 MHz and 900 MHz) . . . . . . . 5-5
Removing the Transceiver Board (800 MHz and 900 MHz only) . . . . . . . . . . . . . . . . . . . . . . . . . 5-6
Direction Conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-7
Removing the Accessory Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-7
Removing the Bottom Cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-8
Removing the RF Shield . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-8
Removing the PA Shield . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-9
Removing the PA Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-9
Removing the RF Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-10
Reassembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-14
Wakefield / Thermal Compound Application Area . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-16
Inserting Transceiver Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-16
Reassembly Screw Down Sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-17
Inserting Audio PA Clip . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-18
Installing Cover Gasket . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-19
Model I Replaceable Pushbuttons . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-20
Model II Replaceable Pushbuttons . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-20
Model III Replaceable Pushbuttons . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-20
Grasping Pushbutton with Flat End Pliers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-22
Pulling Pushbutton Away from Control Head . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-22
Radio Alignment Test Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1
Service Menu Structure for RVN4113 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-2
Softpot Concept . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-3
Clock Distribution Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-10
Transmit Audio Paths . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-18
Transmit Signalling Paths . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-20
Receive Audio Paths . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-22
Receive Signalling Paths . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-25
Troubleshooting Charts Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-1
Schematic Diagram Hierarchy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-2
Example of Transceiver Board Block Connection Diagram (110 Watt Radio) . . . . . . . . . . . . . . 10-3

x
List of Tables
Kit-to-Model Structure for VHF and UHF Radios . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-5
Kit-to-Model Structure for 800 and 900 MHz Radios . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-6
Recommended Test Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-1
Service Aids . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-2
Recommended Service Tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-3
Control Head Connector Pin Signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-4
Power Up Display Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-4
Operational Display Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-4
Replaceable Pushbutton Graphics and Part Numbers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-23
Reference Oscillator Alignment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-3
Transmit Power Setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-4
Current Limit Step Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-5
Signaling Deviation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-7
Conventional/MDC/SmartNet/SmartZone Ignition Sense Function -
. . . . . . . . . . . Operator Action vs Resultant Radio States . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-5
Secondary I/O Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-12
Hear Clear Enable Lines Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-26

Introduction 1-1
Introduction
1
Scope of this
Manual
This manual includes model/kit information, specifications, fundamental
disassembly/reassembly procedures, maintenance, alignment,
troubleshooting; and all theory, schematic diagrams, printed circuit board
details and parts lists for all Non-Frequency Range Specific parts in the
equipment listed.
This manual is NOT a stand-alone manual, but requires the companionship of
an appropriate Volume 2 manual in order to have all service information for a
particular model of the radio. For every frequency band a band specific
Volume 2 manual will be available.
By ordering the Complete Service Instructions, Motorola Publication Number
68P81080C40, you will receive Volume 1 as well as all Volume 2 band specific
manuals available at the time of ordering. In addition, for radios that are
equipped with the Motorola SECURENET option, the SECURENET Service
manual, Motorola Publication Number 68P81083C25, is required.
Related
Publications
• 68P02058U20: Installation Instructions covering mobile series 900 / 1200
/ 2000 / 2100.
• 68P81080C40: MCS 2000 Mobile Radio Complete Service Instructions. All
Frequency Ranges, includes all volume 2s.
• 68P81083C20: MCS 2000 Mobile Radio Service Instructions - Volume 1.
Non-Frequency Range Specific (this publication).
• 68P81080C43: MCS 2000 Mobile Radio Service Instructions - Volume 2a.
800 MHz Frequency Range Specific.
• 68P81080C41: MCS 2000 Mobile Radio Service Instructions - Volume 2b.
VHF Frequency Range Specific.
• 68P81080C42: MCS 2000 Mobile Radio Service Instructions - Volume 2c.
UHF Frequency Range Specific.
• 68P81080C44: MCS 2000 Mobile Radio Service Instructions - Volume 2d.
900 MHz Frequency Range Specific.
• 68P81083C25: MCS 2000 Mobile Radio SECURENET Service Instructions.
• 68P81080C47: MCS 2000 Accessory Guide.
• 68P81080C35: MCS 2000 Mobile Radio Detailed User Reference Guide full
operating instruction covering models I, II and III.
• 68P81080C05: MCS 2000 Short Form User Guide for Model I.
• 68P81080C10: MCS 2000 Short Form User Guide for Models II and III.
• 68P81077C65: FlashPort User’s Guide.
• 68P81077C15: SmartZone RSS Manual.
Manual Revisions
Changes which occur after this manual is printed are described in Manual
Revisions. These Manual Revisions provide complete information on changes
including pertinent parts listing data.

1-2 Introduction
Model Numbering System
Position 1 - Type of Unit
M = Mobile Radio
Positions 2 & 3 - Model Series
Position 4 - Frequency Band
66 to 88MHz
136 to 174MHz
146 to 174MHz
403 to 470MHz
450 to 512MHz
806 to 870MHz
896 to 941MHz
Values given represent range only; they are
not absolute.
Position 5 - Power Level
1 to 10 Watts
10 to 15 Watts
25 Watts
30 to 35 Watts
40 to 50 Watts
100 to 110 Watts
Position 6 - Control Head
Duplex
Hand-Held Control
Limited Control; Limited Display
Rotary Knob; Standard Display
Keypad; Standard Display
Position 7 - Channel Spacing
1 = 5kHz
2 = 6.25kHz
3 = 10kHz
4 = 12.5kHz
5 = 15kHz
6 = 20/25kHz
7 = 30kHz
9 = Variable/Programmable
Typical Model Number:
Position:
Position 8 - Primary Operation
Conventinal/Simplex
Conventional/Duplex
Trunked Twin Type
Dual Mode Trunked
Dual Mode Trunked/Duplex
Trunked Type I
Trunked Type II
FDMA* Digital Dual Mode
TDMA** Digital Dual Mode
Single Sideband
Global Positioning Satellite Capable
Amplitude Companded Sideband (ACSB)
Programmable
* FDMA = Frequency Division Multiple Access
** TDMA = Time Division Multiple Access
Position 9 - Primary System Type
Conventional
Privacy Plus®
Clear SMARTNET™
Advanced Conventional Stat-Alert™
Enhanced Privacy Plus®
Nauganet 888 Series
Japan Specialized Mobile Radio (JSMR)
Multi-Channel Access (MCA)
CoveragePLUS™
MPT1327* - Public
MPT1327* - Private
Radiocom
Tone Signalling
Binary Signalling
Phonenet®
Programmable
Secure Conventional
Secure SMARTNET™
* MPT = Ministry of Posts and Telecommunications
Position 10 - Specification Level
4 = Standard Specifications (Model I)
5 = Standard Specifications (Models II & III)
6 = High Specifications
Position 11 - Version
Version Letter (Alpha) - Major Change
Position 12 -
Unique Model Variations
N = Standard Package
Positions 13 - 16
“SP” Model Suffix
123 4 5 6 7 8 9 1011 1213141516
M01 K LM 9 P W 6 A N S P 0 1
F
J
K
R
S
U
W
=
=
=
=
=
=
=
F
G
H
J
K
L
=
=
=
=
=
=
D
H
L
M
N
=
=
=
=
=
A
B
C
D
E
F
G
H
J
K
L
M
P
=
=
=
=
=
=
=
=
=
=
=
=
=
A
B
C
D
E
F
G
H
J
K
L
M
N
P
Q
W
X
Y
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
(Mid Band)
(VHF1)
(VHF2)
(UHF1)
(UHF2)*
(800MHz))
(900MHz)
(Model I)
(Model II)
(Model III)
* 450 to 520 on some models
MEPC-95040-B/GB

Introduction 1-3
List of Models
PRIVATE SYSTEMS RADIOS
MCS 2000 Model Family
Model Number Frequency Range Power Level Control Head Model Channel Spacing No. of Modes
M01JLM9PW6_N 136 - 162 MHz 50-110 Watts Model II, 1x14 digits 25/20/12.5 kHz 160
M01JLN9PW6A_N 136 - 162 MHz 50-110 Watts Model III, 2x14 digits 25/20/12.5 kHz 160
M01JLH9PW6A_N 136 - 162 MHz 50-110 Watts Hand-held Control Head 25/20/12.5 kHz 160
M01KHL9PW4_N 136 - 174 MHz 1-25 Watts Model I, 8 digits 25/20/12.5 kHz 48
M01KHM9PW5_N 136 - 174 MHz 1-25 Watts Model II, 1x14 digits 25/20/12.5 kHz 160
M01KHN9PW5_N 136 - 174 MHz 1-25 Watts Model III, 2x14 digits 25/20/12.5 kHz 160
M01KHH9PW5_N 136 - 174 MHz 1-25 Watts Hand-held Control Head 25/20/12.5 kHz 160
M01KKM9PW6_N 136 - 174 MHz 25-50 Watts Model II, 1x14 digits 25/20/12.5 kHz 160
M01KKN9PW6_N 136 - 174 MHz 25-50 Watts Model III, 2x14 digits 25/20/12.5 kHz 160
M01KKH9PW6_N 136 - 174 MHz 25-50 Watts Hand-held Control Head 25/20/12.5 kHz 160
M01KLM9PW6_N 146 - 174 MHz 50-110 Watts Model II, 1x14 digits 25/20/12.5 kHz 160
M01KLN9PW6_N 146 - 174 MHz 50-110 Watts Model III, 2x14 digits 25/20/12.5 kHz 160
M01KLH9PW6_N 146 - 174 MHz 50-110 Watts Hand-held Control Head 25/20/12.5 kHz 160
M01RFL9PW4_N 403 - 470 MHz 1-10 Watts Model I, 8 digits 25/20/12.5 kHz 48
M01RFM9PW5_N 403 - 470 MHz 1-10 Watts Model II, 1x14 digits 25/20/12.5 kHz 160
M01RFN9PW5_N 403 - 470 MHz 1-10 Watts Model III, 2x14 digits 25/20/12.5 kHz 160
M01RFH9PW5_N 403 - 470 MHz 1-10 Watts Hand-held Control Head 25/20/12.5 kHz 160
M01RHL9PW4_N 403 - 470 MHz 10-25 Watts Model I, 8 digits 25/20/12.5 kHz 48
M01RHM9PW5_N 403 - 470 MHz 10-25 Watts Model II, 1x14 digits 25/20/12.5 kHz 160
M01RHN9PW5_N 403 - 470 MHz 10-25 Watts Model III, 2x14 digits 25/20/12.5 kHz 160
M01RHH9PW5_N 403 - 470 MHz 10-25 Watts Hand-held Control Head 25/20/12.5 kHz 160
M01RKM9PW6_N 403 - 470 MHz
*
25-50 Watts Model II, 1x14 digits 25/20/12.5 kHz 160
M01RKN9PW6_N 403 - 470 MHz* 25-50 Watts Model III, 2x14 digits 25/20/12.5 kHz 160
M01RKH9PW6_N 403 - 470 MHz* 25-50 Watts Hand-held Control Head 25/20/12.5 kHz 160
M01RLM9PW6_N 403 - 470 MHz* 50-110 Watts Model II, 1x14 digits 25/20/12.5 kHz 160
M01RLN9PW6_N 403 - 470 MHz* 50-110 Watts Model III, 2x14 digits 25/20/12.5 kHz 160
M01RLH9PW6_N 403 - 470 MHz* 50-110 Watts Hand-held Control Head 25/20/12.5 kHz 160
M01SHM9PW5_N 450 - 512 MHz 10-25 Watts Model I, 8 digits 25/20/12.5 kHz 48
M01SHM9PW5_N 450 - 512 MHz 10-25 Watts Model II, 1x14 digits 25/20/12.5 kHz 160
M01SHM9PW5_N 450 - 512 MHz 10-25 Watts Model III, 2x14 digits 25/20/12.5 kHz 160
M01SLM9PW6_N 450 - 512 MHz 50-110 Watts Model II, 1x14 digits 25/20/12.5 kHz 160
M01SLN9PW6_N 450 - 512 MHz 50-110 Watts Model III, 2x14 digits 25/20/12.5 kHz 160
M01SLH9PW6_N 450 - 512 MHz 50-110 Watts Hand-held Control Head 25/20/12.5 kHz 160
M01UGL6PW4_N 806 - 870 MHz 15 Watts Model I, 8 digits 20/25 kHz 48
M01UGM6PW5_N 806 - 870 MHz 15 Watts Model II, 1x14 digits 20/25 kHz 160
M01UGM6PW6_N 806 - 870 MHz 15 Watts Model II, 1x14 digits 20/25 kHz 160

1-4 Introduction
* The radio will operate with some degradation in receiver performance in 433-438 MHz frequencies.
M01UGN6PW6_N 806 - 870 MHz 15 Watts Model III, 2X14 digits 20/25 kHz 160
M01UGH6PW6_N 806 - 870 MHz 15 Watts Hand-held Control Head 20/25 kHz 160
M01UJL6PW4_N 806 - 870 MHz 30-35 Watts Model I, 8 digits 20/25 kHz 48
M01UJM6PW6_N 806 - 870 MHz 30-35 Watts Model II, 1x14 digits 20/25 kHz 160
M01UJN6PW6_N 806 - 870 MHz 30-35 Watts Model III, 2X14 digits 20/25 kHz 160
M01UJH6PW6_N 806 - 870 MHz 30-35 Watts Hand-held Control Head 20/25 kHz 160
M01WGL4PW4_N 896-941 MHz 12 Watts Model I, 8 digits 12.5 kHz 48
M01WGM4PW6_N 896-941 MHz 12 Watts Model II, 1x14 digits 12.5 kHz 160
M01WGN4PW6_N 896-941 MHz 12 Watts Model III, 2X14 digits 12.5 kHz 160
M01WGH4PW6_N 896-941 MHz 12 Watts Hand-held Control Head 12.5 kHz 160
M01WJL4PW4_N 896-941 MHz 30 Watts Model I, 8 digits 12.5 kHz 48
M01WJM4PW6_N 896-941 MHz 30 Watts Model II, 1x14 digits 12.5 kHz 160
M01WJN4PW6_N 896-941 MHz 30 Watts Model III, 2X14 digits 12.5 kHz 160
M01WJH4PW6_N 896-941 MHz 30 Watts Hand-held Control Head 12.5 kHz 160
PRIVATE SYSTEMS RADIOS
MCS 2000 Model Family
Model Number Frequency Range Power Level Control Head Model Channel Spacing No. of Modes

Introduction 1-5
Kit-To-Model
Structure
The cross-reference charts below show the kit breakdown for each of the
MCS 2000 models. Table 1-1 covers the VHF and UHF models and Table 1-2
covers the 800 MHz and 900 MHz models.
Table 1-1 Kit-to-Model Structure for VHF and UHF Radios
Item Description HUD4012D RF/Ctrl Bd, VHF, 1-25W HUD4006A RF/Ctrl Bd, VHF, 25-50W HUD4015A RF/Ctrl Bd, VHF1/VHF2, 110W HUD4021A PA VHF1, 110W HUD4016A PA VHF2,110W HUE4021B RF/Ctrl Bd, UHF1, 1-10W HUE4012C1 RF/Ctrl Bd, UHF1, 10-25W HUE4011B2 RF/Ctrl Bd, UHF2, 10-25W HUE4020A PA, UHF2, 110W HUE4019A RF/Ctrl Bd, UHF2, 110W NLE4248A RF/Ctrl Bd, UHF, 50 W HUE4018A PA, UHF, 110W HUE4017A RF/Ctrl Bd, UHF, 110W HCN1092B Ctrl Hd II HCN1091B Ctrl Hd I HCN1093B Ctrl Hd III HLN6544A Housing, LP (
≥
25W), VHF/UHF
HHN4041A Housing, MP (25-50W) HHN4042A Housing, HP (110W) HLN6354A Trstr Hw kit V/U 25W HLN6357A Trstr Hw kit VHF 50W HLN6572A Trstr Hw kit VHF 100W HLN6353A Trstr Hw kit U2 25W
Model Description
••••
M01KHM9PW5_N, VHF1, 25W, Mod. II
•• • •
M01KHN9PW5_N, VHF1, 25W, Mod. III
•••
M01KHH9PW5_N, VHF1, 25W, Hand held
• • • •
M01KKM9PW6_N, VHF1, 50W, Mod. II
••••
M01KKN9PW6_N, VHF1, 50W, Mod. III
•• •
M01KKH9PW6_N, VHF1, 50W, Hand held
•• • • •
M01JLM9PW6_N, VHF1, 110W, Mod. II
•• • • •
M01JLN9PW6_N, VHF1, 110W, Mod. III
•• •••
M01JLH9PW6_N, VHF1, 110W, Hand held
•• • • •
M01KLM9PW6_N, VHF2, 110W, Mod. II
•• •••
M01KLN9PW6_N, VHF2, 110W, Mod. III
•• • • •
M01KLH9PW6_N, VHF2, 110W, Hand held
• •••
M01RFM9PW5_N, UHF1, 10W, Mod. II
•• • •
M01RFN9PW5_N, UHF1, 10W, Mod. III
•••
M01RFH9PW5_N, UHF1, 10W, Hand held
•• • •
M01RHL9PW4_N, UHF1, 10-25W, Mod. I
• •••
M01RHM9PW5_N, UHF1, 10-25W, Mod. II
• • • •
M01RHN9PW5_N, UHF1, 10-25W, Mod. III
•••
M01RHH9PW5_N, UHF1, 10-25W, Hand
•• •
M01RKM9PW6_N, UHF1, 50W, Mod. II
•••
M01KHN9PW6_N, UHF1, 50W, Mod. III
••
M01RKH9PW6_N, UHF1, 50W, Hand held
••• •
M01RLM9PW6_N, UHF1, 110W, Mod. II
•• • •
M01RLN9PW6_N, UHF1, 110W, Mod. III
•• •
M01RLH9PW6_N, UHF1, 110W, Hand held
M01SHM9PW5_N, UHF2, 25W, Mod. II
•• • •
M01SLM9PW5_N, UHF2, 110W, Mod. II
•• • •
M01SLN9PW5_N, UHF2, 110W, Mod. III
•• •
M01SLH9PW5_N, UHF2, 110W, Hand held

1-6 Introduction
Table 1-2 Kit-to-Model Structure for 800 and 900 MHz Radios
Item Description FLF5579C RF/Ctrl Bd, 800 MHz, 15W FLF5574C RF/Ctrl Bd, 800 MHz, 35W HUF4006A RF/Ctrl Bd, 900 MHz, 12W FLF5592A RF/Ctrl Bd, 900 MHz, 30W HCN1092B Ctrl Hd II HCN1091B Ctrl Hd I HCN1093B Ctrl Hd III HHN4037A Housing, LP (
≥
25W), 8/900 MHz
HLN6544A Housing, LP (
≥
25W), VHF/UHF
HHN4041A Housing, MP (25-50W) HHN4042A Housing, HP (110W) HLN6354A Trstr Hw kit V/U 25W HLN6357A Trstr Hw kit VHF 50W HLN6572A Trstr Hw kit VHF 100W FLN8182A Trstr Hw kit 8/900MHz 15/12W
Model Description
••• •
M01UGL6PW4_N, 800MHz, 15W, Mod. I
•• • •
M01UGM6PW6_N, 800MHz, 15W, Mod. II
••• •
M01UGN6PW6_N, 800MHz, 15W, Mod. III
M01UGH6PW6_N, 800MHz, 15W,Hand hld
•••
M01UJL6PW4_N, 800MHz, 35W, Mod. I
•• •
M01UJM6PW6_N, 800MHz, 35W, Mod. II
•••
M01UJN6PW6_N, 800MHz, 35W, Mod. III
•• • •
M01UGM6PW5_N, 800MHz, 15W, Mod. II
•••
M01UGH6PW6_N, 800MHz, 35W, Hand hld
•• • •
M01WGL4PW4_N, 900MHz, 12W, Mod. I
•• • •
M01WGM4PW6_N, 900MHz, 12W, Mod. II
•• • •
M01WGN4PW6_N, 900MHz, 12W, Mod. III
••• •
M01WGH4PW6_N, 900MHz, 12W, Hand hld
•• •
M01WJL4PW6_N, 900MHz, 30W, Mod. I
•• •
M01WJM4PW6_N, 900MHz, 30W, Mod. II
•• •
M01WJN4PW6_N, 900MHz, 30W, Mod. III
••
M01WJH4PW6_N, 900MHz, 30W, Hand hld

Introduction 1-7
GENERAL RECEIVER TRANSMITTER
Specifications subject to change without notice.
Frequency Range: 136-174MHz
RF Power: 1 - 25 Watts variable
Deviation, Maximum:
12.5 kHz channel spacing: ± 2.5 kHz
20 kHz channel spacing: ± 4.0 kHz
25 kHz channel spacing: ± 5.0 kHz
Spurious & Harmonics: <0.25 uW
Audio Response:
6 dB/octave +1/-3 dB at 300-3000 Hz
Distortion:
<3% @ 60% of maximum deviation
Adjacent Channel Power (CEPT):
12.5 kHz: <60 dB
20/25 kHz: <-70 dB
Frequency Range: 136-174MHz
Maximum Frequency Separation: 38 MHz
Sensitivity:
20dB SINAD:
12.5 kHz: 0.45 uV
20/25 kHz: 0.35 uV
12dB SINAD: 0.30 uV
Adjacent Channel Selectivity:
12.5 kHz: >70 dB
20 kHz: >75 dB
25 kHz: >80 dB
Spurious / Image Rejection: >80 dB
Intermodulation: (uVemf)>70 dB
Conducted Spurious Emission: <2 nW
Audio Output:
12.5 kHz: 4 W (internal, 16 Ω )
20/25 kHz: 7.5/13 W (external, 8 Ω /3.2 Ω )
Audio Response:
6 dB/octave +1/-3 dB at 300-3000 Hz
Distortion:
EIA: <3%
CEPT: <5%
Temperature Range:
Operating: -25 to +55 ° C
Storage: -40 to +85 ° C
Power Supply:
NominalVoltage: 13.6 V
OperatingVoltage: 10.8-15.6 V
Current Drain, maximum values:
Stand-by: 0.45 A
Receive:
1.7 A with 7.5 W speaker
2.5 A with 13 W speaker
1.5 A with 4 W speaker
Transmit: 8.75 A
Off 35 mA
Number of Modes:
Model I: Standard 48, optional 150
Model II, III: Standard 160, optional 250
Channel Spacing: 12.5, 20, 25 kHz
Mode of Operation: Simplex/Half-Duplex
Modulation: FM/PM
Antenna Impedance: 50 Ω
Frequency Stability: ±5.0 ppm
Dimensions (H/W/D):
1-25WattTransceiver:
44x168x180 mm / 1.73”x6.61”x7.09”
Control Head I, Dash Mt.:
44x168x30 mm / 1.73”x6.61”x1.18”
Control Head II, III, Dash Mt.:
60x190x30 mm / 2.36”x7.48”x1.18”
Control Head II, III, Remote Mt.:
60x190x71 mm / 2.36”x7.48”x2.80”
Weight:
1-25WattTransceivers: 1.6 kg / 3.53 lbs
Control Head I, Dash Mt.: 152 g / 0.33 lbs
Control Head II, Dash Mt.: 233 g / 0.51 lbs
Control Head III, Dash Mt.:229 g / 0.50 lbs
SPECIFICATIONS FORVHF, 1-25WATT RADIOS
All specifications are per EuropeanTelecommunication Standard (ETS) 300-086 unless otherwise noted.

1-8 Introduction
GENERAL RECEIVER TRANSMITTER
Specifications subject to change without notice.
All specifications are per Electronic Industries Association (EIA) 603 unless otherwise noted.
(FCC Designation:
136-174 MHz, 110W AZ492FT3781)
Temperature Range:
Operating: -30 to +60°C
Storage: -40 to +85°C
Power Supply:
NominalVoltage: 13.6 V
OperatingVoltage: 10.8-16.3 V
Current Drain, maximum values:
Stand-by: 0.45 A
Receive: 1.7 A with 7.5 W speaker
2.5 A with 13 W speaker
1.5 A with 4 W speaker
Transmit (25-50W): 15 A
Transmit (110W): 27 A
Off: 35 mA
Number of Modes:
Model I: Standard 48, optional 150
Model II, III: Standard 160, optional 250
Channel Spacing: 12.5/30 kHz
Mode of Operation: Semi-Duplex
Modulation: FM
Antenna Impedance: 50 Ω
Frequency Stability: ±2.0 ppm
Dimensions (H/W/D):
25-50WTransceivers:
44x168x230 mm / 1.97”x6.61”x7.76”
50-110WattTransceivers:
56x168x360 mm / 2.30”x6.61”x11.66”
Control Head I, Dash Mt.:
44x168x30 mm / 1.75”x6.61”x1.81”
Control Head II, III, Dash Mt.:
60x186x30 mm / 2.35”x7.33”x1.83”
Control Head II, III, Remote Mt.:
60x186x71 mm / 2.35”x7.33”x2.78”
Weight:
25-50WattTransceivers: 1.8 kg / 4.04 lbs
50-110WattTransceivers:2.5 kg / 5.50 lbs
Control Head I, Dash Mt.: 152 g / 0.33 lbs
Control Head II, Dash Mt.: 233 g / 0.51 lbs
Control Head III, Dash Mt.:229 g / 0.50 lbs
Frequency Range: (50-110W)136-162MHz
(50-110 W) 136-174 MHz
(25-50W) 146-174MHz
Maximum Frequency Separation:
25-50W 38 MHz
50-110W 136-162 MHz 26 MHz
146-174 MHz 28 MHz
Sensitivity:
20dB SINAD:0.50 uV or 0.30 uV w/ preamp
12dB SINAD:0.35 uV 0r 0.20 uV w/ preamp
Adjacent Channel Selectivity:
@12.5 kHz: -65 dB
@30 kHz: -95 dB
Image Rejection: -90 dB
Spurious Rejection: -100*dB
or with preamp -90 dB
Intermodulation: -85 dB
or with preamp -80 dB
Conducted Spurious Emission:
per FCC part 90
Audio Output: 4 W (internal, 16 Ω)
7.5 W or 13 W (external, 8 Ω/3.2 Ω)
Audio Response:
6 dB/octave +1/-3 dB at 300-3000 Hz
Distortion: 7.5W @: <3%
(optional spkr) 13 W @ <5%
*. -100 dB is not applicable to all
spurious frequencies.
Frequency Range: (50-110 W) 136-162MHz
(50-110 W) 136-174 MHz
(25-50W) 146-174MHz
Maximum Frequency Separation:
25-50W 38 MHz
50-110W 136-162 MHz 26 MHz
146-174 MHz 28 MHz
RF Power: 136-174MHz:25-50 Watts
136-162 MHz: 50-110 Watts
146-174MHz: 50-110 Watts
Deviation, Maximum:
12.5 kHz channel spacing: ±2.5 kHz
25 kHz channel spacing: ±5.0 kHz
Spurious & Harmonics: -85 dBc
Audio Response:
6 dB/octave +1/-3 dB at 300-3000 Hz
Distortion: <3% @ 60% of maximum deviation
Adjacent Channel Power (CEPT):
12.5 kHz: -60 dBc
20/25/30 kHz: -70 dBc
SPECIFICATIONS FORVHF, 25-50WATT AND 50-110 WATT RADIOS

Introduction 1-9
GENERAL RECEIVER TRANSMITTER
Specifications subject to change without notice.
Temperature Range:
Operating: -25 to +55°C
Storage: -40 to +85°C
Power Supply:
NominalVoltage: 13.6 V
OperatingVoltage: 10.8-15.6 V
Current Drain, maximum values:
Stand-by: 0.45 A
Receive: 1.7 A with 7.5 W speaker
2.5 A with 13 W speaker
1.5 A with 4 W speaker
Transmit (25W): 8.75 A
Off: 35 mA
Number of Modes:
Model I: Standard 48, optional 150
Model II, III: Standard 160, optional 250
Channel Spacing: 12.5, 20, 25 kHz
Mode of Operation: Simplex/Half-Duplex
Modulation: FM/PM
Antenna Impedance: 50 Ω
Frequency Stability: ±4.0 ppm
Dimensions (H/W/D):
1-25WattTransceiver:
44x168x180 mm / 1.73”x6.61”x7.09”
Control Head I, Dash Mt.:
44x168x30 mm / 1.73”x6.61”x1.18”
Control Head II, III, Dash Mt.:
60x190x30 mm / 2.36”x7.48”x1.18”
Control Head II, III, Remote Mt.:
60x190x71 mm / 2.36”x7.48”x2.80”
Weight:
1-25WattTransceivers: 1.6 kg / 3.53 lbs
Control Head I, Dash Mt.: 152 g / 0.33 lbs
Control Head II, Dash Mt.: 233 g / 0.51 lbs
Control Head III, Dash Mt.:229 g / 0.50 lbs
Frequency Range: 403-470 MHz
Maximum Frequency Separation: 67 MHz
Sensitivity:
20dB SINAD:
12.5 kHz: 0.45 uV
20/25 kHz: 0.35 uV
12dB SINAD:
12.5 kHz: 0.35 uV
20/25 kHz: 0.30 uV
Adjacent Channel Selectivity:
12.5 kHz: >65 dB
20 kHz: >70 dB
25 kHz: >75 dB
Spurious / Image Rejection: >80 dB
Intermodulation: (uVemf)>70 dB
Conducted Spurious Emission: <2 nW
Audio Output:
12.5 kHz: 4 W (internal, 16 Ω)
20/25 kHz: 7.5/13 W (external, 8 Ω/3.2 Ω)
Audio Response:
6 dB/octave +1/-3 dB at 300-3000 Hz
Distortion:
EIA: <3%
CEPT: <5%
Frequency Range: 403-470 MHz
RF Power: 1 - 10 Watts variable
10-25 Watts variable
Deviation, Maximum:
12.5 kHz channel spacing: ±2.5 kHz
20 kHz channel spacing: ±4.0 kHz
25 kHz channel spacing: ±5.0 kHz
Spurious & Harmonics: <0.25 uW
Audio Response:
6 dB/octave +1/-3 dB at 300-3000 Hz
Distortion: <3% @ 60% of maximum deviation
Adjacent Channel Power (CEPT):
12.5 kHz: <60 dB
20/25 kHz: <-70 dB
SPECIFICATIONS FOR UHF, 1-10 WATT AND 10-25 WATT RADIOS
All specifications are per EuropeanTelecommunication Standard (ETS) 300-086 unless otherwise noted.

1-10 Introduction
GENERAL RECEIVER TRANSMITTER
Specifications subject to change without notice.
All specifications are per Electronic Industries Association (EIA) 603 unless otherwise noted.
(FCC Designation:
403-470 MHz, 110W AZ492FT54797)
Temperature Range:
Operating: -30 to +60°C
Storage: -40 to +85°C
Power Supply:
NominalVoltage: 13.6 V
OperatingVoltage: 10.8-16.3 V
Current Drain, maximum values:
Stand-by: 0.5 A
Receive: 1.7 A with 7.5 W speaker
2.5 A with 13 W speaker
1.5 A with 4 W speaker
Transmit (25-40W): 13.0 A
Transmit (50-110W): 31.0 A
Off: 35 mA
Number of Modes:
Model I: Standard 48, optional 150
Model II, III: Standard 160, optional 250
Channel Spacing: 12.5/25 kHz
Mode of Operation: Semi-Duplex
Modulation: FM
Antenna Impedance: 50 Ω
Frequency Stability: ±2.0 ppm
Dimensions (H/W/D):
25-50WTransceivers:
44x168x230 mm / 1.97”x6.61”x7.76”
50-110WattTransceivers:
56x168x360 mm / 2.30”x6.61”x11.66”
Control Head I, Dash Mt.:
44x168x30 mm / 1.75”x6.61”x1.81”
Control Head II, III, Dash Mt.:
60x186x30 mm / 2.35”x7.33”x1.83”
Control Head II, III, Remote Mt.:
60x186x71 mm / 2.35”x7.33”x2.78”
Weight:
25-50WattTransceivers: 1.8 kg / 4.04 lbs
50-110WattTransceivers:2.5 kg / 5.50 lbs
Control Head I, Dash Mt.: 152 g / 0.33 lbs
Control Head II, Dash Mt.: 233 g / 0.51 lbs
Control Head III, Dash Mt.:229 g / 0.50 lbs
Frequency Range: 403-470*MHz
450-512MHz
Maximum Frequency Separation: 67 MHz
Sensitivity:
20dB SINAD:0.50 uV or 0.30 uV w/ preamp
12dB SINAD:0.35 uV 0r 0.20 uV w/ preamp
Adjacent Channel Selectivity:
@12.5 kHz: -65 dB
@25 kHz: -82 dB
Spurious / Image Rejection: -95 dB
or with preamp -90 dB
Intermodulation:(uVemf) -85 dB
or with preamp -80 dB
Conducted Spurious Emission:
per FCC part 90
Audio Output:
7.5 W or 13 W (external, 8 Ω/3.2 Ω)
Audio Response:
6 dB/octave +1/-3 dB at 300-3000 Hz
Distortion: 7.5W @: <3%
(optional spkr) 13 W @ <5%
*. The radio will operate with
some degradation in receiver
performance in 433-438 MHz
frequencies.
Frequency Range: 403-470*MHz
450-512MHz
RF Power:
403-470 MHz: 25-40 Watts
50-110 Watts
450-512 MHz 25-40 Watts
50-110 Watts*
Deviation, Maximum:
12.5 kHz channel spacing: ±2.5 kHz
25 kHz channel spacing: ±5.0 kHz
Spurious & Harmonics: -80 dBc
Audio Response:
6 dB/octave +1/-3 dB at 300-3000 Hz
Distortion: <3% @ 60% of maximum deviation
Adjacent Channel Power (CEPT):
12.5 kHz: -60 dBc
20/25/30 kHz: -70 dBc
*. Limited to 78 Watts above
470 MHz in the USA.
SPECIFICATIONS FOR UHF, 25-40 WATT, 50-110WATT RADIOS