Motorola HT750-LS, MTX450, MTX150, MTX1500, MTX4500 Supplement To Basic Service Manual

Supplement to
Basic Service Manual

(Canada Only)

Professional Portable Radio Basic Service Manual 68P80906Z54

quality

versatility

Professional Radio

As Dedicated As You Are

™

HT750•LS
MTX150
MTX450
MTX1500
MTX4500

Portable Radios

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, but not limited to, the
exclusive right to copy or reproduce in any form the copyrighted computer program. Accordingly, any copy­righted Motorola computer programs contained in the Motorola products described in this manual may not
be copied, reproduced, modiÞed, reverse-engineered, or distributed 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 license to use that arises by operation
of law in the sale of a product.

This document supplements the information in the
Basic Service Manual Part Number 68P80906Z54-B.

Supplement Basic Service Manual 68P80906Z54-B contains
VHF information for the following portable radio models:
¥ HT750¥LS
¥ MTX150
¥ MTX450
¥ MTX1500
¥ MTX4500

.

© 2001 by Motorola, Inc.
8000 W. Sunrise Blvd.
Ft. Lauderdale, FL 33322, U.S.A.
All rights reserved. Printed in U.S.A.

i

SAFETY AND GENERAL INFORMATION

IMPORTANT INFORMATION ON SAFE AND EFFICIENT OPERATION
READ THIS INFORMATION BEFORE USING YOUR MOTOROLA TWO-WAY RADIO

The information provided in this document supersedes the general safety inf ormation contained in user guides
published prior to October 2000. For information regarding radio use in a hazardous atmosphere refer to the
Factory Mutual (FM) manual supplement included with radio models that offer this capability and/or the
intrinsic safety radio information section of this user manual.

RADIO FREQUENCY (RF) OPERATIONAL CHARACTERISTICS

To transmit (talk) you must push the Push-To-Talk button; to receive (listen) you must release the
Push-To-Talk button. When the radio is transmitting, it generates radio frequency (RF) energy; when it is

receiving, or when it is off, it does not generate RF energy.

PORTABLE RADIO OPERATION AND EME EXPOSURE

Your Motorola radio is designed to comply with the following national and international standards and
guidelines regarding exposure of human beings to radio frequency electromagnetic energy (EME):

• United States Federal Communications Commission, Code of Federal
Regulations; 47 CFR part 2 sub-part J

• American National Standards Institute (ANSI) / Institute of Electrical and
Electronic Engineers (IEEE) C95. 1-1992

• Institute of Electrical and Electronic Engineers (IEEE) C95.1-1999 Edition

• National Council on Radiation
Protection and Measurements (NCRP) of the United States, Report 86, 1986

• International Commission on Non-Ionizing Radiation Protection (ICNIRP) 1998

• Ministry of Health (Canada) Safety Code 6. Limits of Human Exposure to Radio Frequency Electromag­netic Fields in the Frequency Range from 3 kHz to 300 GHz, 1999

• Australian Communications Authority Radiocommunications (Electromagnetic Radiation - Human Expo­sure) Standard 1999 (applicable to wireless phones only)

To assure optimal radio performance and make sure human exposure to radio frequency
electromagnetic energy is within the guidelines set forth in the above standards, al wa ys adhere to the
following procedures:

Two-way Radio Operation

When using your radio, hold the radio in a vertical position with the microphone one to

two inches (2.5 to 5 centimeters) away from the lips.
Body-worn Operation

To maintain compliance with FCC RF exposure guidelines, if you wear a radio on your body
when transmitting, always place the radio in a Motorola approved clip, holder, holster,

case, or body harness for this product . Use of non-Motorola-approved accessories may exceed FCC RF

exposure guidelines. If you do not use a Motorola appro ved bod y-w orn accessory and are not using the

radio in the intended use positions along side of the head in the phone mode or in front of the face in
the two-way radio mode, then ensure the antenna and radio is kept the following minimum distances
from the body when transmitting:

• Phone or Two-way radio mode: one inch (2.5 centimeters)

• Data operation using any data feature with or without an accessory cable: one inch (2.5 centimeters)

MAN WITH RADIO

ii Safety and General Information

Antenna Care
Use only the supplied or an approved replacement antenna. Unauthorized antennas, modifications, or

attachments could damage the radio and may violate FCC regulations.

DO NOT hold the antenna when the radio is “IN USE”. Holding the antenna affects call quality and may

cause the radio to operate at a higher power level than needed.

Approved Accessories

For a list of approved Motorola accessories look in the appendix or accessory section of your radio’s User
Guide.

ELECTROMAGNETIC INTERFERENCE/COMPATIBILITY

Note: Nearly every electronic device is susceptible to electromagnetic interference (EMI) if inadequately

shielded, designed or otherwise configured for electromagnetic compatibility.

Facilities

To avoid electromagnetic interference and/or compatibility conflicts, turn off your radio in any facility where
posted notices instruct you to do so. Hospitals or health care facilities may be using equipment that is
sensitive to external RF energy.

Aircraft

When instructed to do so, turn off your radio when on board an aircraft. Any use of a radio must be in
accordance with applicable regulations per airline crew instructions.

Medical Devices

• Pacemakers

The Health Industry Manufacturers Association recommends that a minimum separation of 6 inches (15
centimeters) be maintained between a handheld wireless radio and a pacemaker.These recommenda­tions are consistent with those of the U.S. Food and Drug Administration.

Persons with pacemakers should:

• ALWAYS keep the radio more than 6 inches (15 centimeters) from their pacemaker when the radio is
turned ON.

• Not carry the radio in the breast pocket.

• Use the ear opposite the pacemaker to minimize the potential for interference.

• Turn the radio OFF immediately if you have any reason to suspect that interference is taking place.

• Hearing Aids

Some digital wireless radios may interfere with some hearing aids. In the event of such interference, you
may want to consult your hearing aid manufacturer to discuss alternatives.

• Other Medical Devices

If you use any other personal medical device, consult the manufacturer of your device to determine if it is
adequately shielded from RF energy. Your physician may be able to assist you in obtaining this information.

Safety and General Information iii

SAFETY AND GENERAL

Use While Driving

Check the laws and regulations on the use of radios in the area where you drive. Always obey them.
When using your radio while driving, please:

• Give full attention to driving and to the road.

• Use hands-free operation, if available.

• Pull off the road and park before making or answering a call if driving conditions so require.

OPERATIONAL WARNINGS

FOR VEHICLES WITH AN AIR BAG

!

!

W A R N I N G

Do not place a portable radio in the area over an air bag or in the air bag deployment area. Air
bags inflate with great force. If a portable radio is placed in the air bag deployment area and the
air bag inflates, the radio may be propelled with great force and cause serious injury to
occupants of the vehicle.

POTENTIALLY EXPLOSIVE ATMOSPHERES

Turn off your radio prior to entering any area with a potentially explosive atmosphere, unless it is a radio type
especially qualified for use in such areas as "Intrinsically Safe" (for example, Factory Mutual, CSA, UL, or
CENELEC). Do not remove, install, or charge batteries in such areas. Sparks in a potentially explosive
atmosphere can cause an explosion or fire resulting in bodily injury or even death.

Note: The areas with potentially explosive atmospheres referred to above include fueling areas such as

below decks on boats, fuel or chemical transfer or storage facilities, areas where the air contains
chemicals or particles, such as grain, dust or metal powders, and any other area where you would
normally be advised to turn off your vehicle engine. Areas with potentially explosive atmospheres are
often but not always posted.

BLASTING CAPS AND AREAS

To avoid possible interference with blasting operations, turn off your radio when you are near electrical
blasting caps, in a blasting area, or in areas posted: "Turn off two-way radio.” Obey all signs and instructions.

OPERATIONAL CAUTIONS

ANTENNAS

!

C a u t i o n

All batteries can cause property damage and/or bodily injury such as burns if a conductive material such as
jewelry, keys, or beaded chains touch exposed terminals. The conductive material may complete an electrical
circuit (short circuit) and become quite hot. Exercise care in handling any charged battery, particularly when
placing it inside a pocket, purse, or other container with metal objects.

Do not use any portable radio that has a damaged antenna. If a damaged antenna comes

into contact with your skin, a minor burn can result.

BATTERIES

iv Safety and General Information

This page intentionally left blank

Table of Contents

SAFETY AND GENERAL INFORMATION........................................................................... i

• RADIO FREQUENCY (RF) OPERATIONAL CHARACTERISTICS .......................... i

• PORTABLE RADIO OPERATION AND EME EXPOSURE....................................... i

• ELECTROMAGNETIC INTERFERENCE/COMPATIBILITY......................................ii

• SAFETY AND GENERAL .........................................................................................iii

• OPERATIONAL WARNINGS....................................................................................iii

• OPERATIONAL CAUTIONS.....................................................................................iii

v

Chapter 1

1.1 Scope of Manual....................................................................................................1-1

1.2 Warranty and Service Support............................................................................... 1-1

1.2.1 Warranty Period and Return Instructions

1.2.2 After Warranty Period

1.2.3 Piece Parts Availability

1.2.4 Technical Support

1.3 Radio Model Information........................................................................................ 1-4

Chapter 2

2.1 FMRC Approved Equipment..................................................................................2-1

2.2 Repair of FMRC Approved Products......................................................................2-2

2.2.1 Repair

2.2.2 Relabeling

2.2.3 Do Not Substitute Options or Accessories

Chapter 3

Introduction

.......................................................1-1

..................................................................................1-1

................................................................................1-2

.......................................................................................1-3

Intrinsically Safe Radio Information

........................................................................................................2-2

..................................................................................................2-2

.....................................................2-2

Maintenance

3.1 HT750•LS Radio Exploded Mechanical View and Parts List.................................3-1

3.2 MTX450 Radio Exploded Mechanical View and Parts List....................................3-2

3.3 MTX4500 Radio Exploded Mechanical View and Parts List..................................3-3

3.4 MTX150 Radio Exploded Mechanical View and Parts List....................................3-4

3.5 MTX1500 Radio Exploded Mechanical View and Parts List..................................3-5

Chapter 4

4.1 RF Test Mode ........................................................................................................4-1

Transceiver Performance Testing

vi

Chapter 5

Radio Tuning, Programming, and Cloning

5.1 Cloning (Conventional and LTR)............................................................................5-1

5.1.1 Error Codes (Display Radios Only)

...............................................................5-2

5.2 Cloning (Privacy Plus)............................................................................................5-2

Chapter 6

Power Up Self-Test

6.1 Error Codes - Conventional and LTR Radios.........................................................6-1

6.2 Error Codes - Privacy Plus.....................................................................................6-2

Chapter 7

Accessories

7.1 HT750•LS/MTX450/MTX4500/MTX150/MTX1500 Accessories ............................7-1

7.1.1 Antennas

7.1.2 Carrying Accessories

7.1.3 Carry Cases

7.1.4 Chargers

7.1.5 Batteries

7.1.6 Adaptors

7.1.7 Miscellaneous

7.1.8 Service Aids

7.1.9 Audio Accessories

7.1.10 Option Boards (HT750•LS only)

7.1.11 Remote Speaker Microphones

7.1.12 Manuals

7.1.13 Retrofit Front Cover Kits

....................................................................................................7-1

...................................................................................7-1

................................................................................................7-1

....................................................................................................7-2

....................................................................................................7-2

.....................................................................................................7-2

.............................................................................................7-2

................................................................................................7-2

......................................................................................7-3

...................................................................7-3

......................................................................7-3

.....................................................................................................7-4

..............................................................................7-4

Chapter 8

Model Chart and Test Specifications

8.1 UHF 403-470 MHz (HT Series)..............................................................................8-1

8.2 UHF 403-470 MHz (MTX Series) ...........................................................................8-1

8.3 VHF 136-174 MHz (MTX Series)............................................................................8-2

8.4 Specifications - HT750•LS/MTX450/MTX4500/MTX150/MTX1500 Radios...........8-3

vii

List of Figures

Figure 3-1 HT750•LS Radio Exploded Mechanical View and Parts List......................3-3

Figure 3-2 MTX450 Radio Exploded Mechanical View and Parts List.........................3-4

Figure 3-3 MTX4500 Radio Exploded Mechanical View and Parts List.......................3-5

Figure 3-4 MTX150 Radio Exploded Mechanical View and Parts List.........................3-6

Figure 3-5 MTX1500 Radio Exploded Mechanical View and Parts List.......................3-7

Figure 4-1 Radio Side Button Locations ......................................................................4-3

Figure 4-2 Two-Line Display........................................................................................4-3

Figure 5-1 Radio Side Button Locations ......................................................................5-1

List of Tables

Table 1-1 Radio Model Number (Example: AAH25RDC9GB3AN) ...............................1-4

Table 4-1 Receiver Performance Checks .....................................................................4-4

Table 4-2 Transmitter Performance Checks .................................................................4-5

Table 6-1 Power-up Display Codes - (Conventional Radios) ........................................6-1

Table 6-2 Power-up Display Codes ..............................................................................6-2

viii

Chapter 1
Introduction

1.1 Scope of Manual

This manual is intended for use by service technicians familiar with similar types of equipment. It
contains service information required for the equipment described and is current as of the printing
date. Changes which occur after the printing date may be incorporated by a complete Man ual revision
or alternatively as additions.

NOTE Before operating or testing these units, please read the Safety Information Section in the

front of this manual.

1.2 Warranty and Service Support

Motorola offers support which includes: full e xchange and/or repair of the product during the warranty
period; and service/repair or spare parts support out of warranty. Any “return for exchange” or “return
for repair” to an authorized Motorola Dealer must be accompanied by a Warranty Claim Form.
Warranty Claim Forms are obtained by contacting an Authorized Motorola Dealer. (See section 1.2.4
on page 1-3.)

1-1

1.2.1 Warranty Period and Return Instructions

The terms and conditions of warranty are defined fully in the Motorola Dealer or Distributor or Reseller
contract. These conditions may change from time to time, and the following subsections are for
guidance purposes only.

In instances where the product is covered under a “return for replacement” or “return for repair”
warranty, a check of the product should be performed prior to shipping the unit back to Motorola. This
is to ensure that the product has been correctly programmed or has not been subjected to damage
outside the terms of the warranty.

Prior to shipping any radio back to the appropriate Motorola warranty depot, please contact Customer
Resources (Please see page 2 and page 3 in this chapter.). All returns must be accompanied by a
Warranty Claim Form, available from y our Customer Resources representative. Products should be

shipped back in the original packaging , or correctly packaged to ensure that no damage occurs in

transit.

1.2.2 After Warranty Period

After the Warranty period, Motorola continues to support its products in two ways:

1. Motorola's Radio Parts and Service Group offers repair service to users and dealers at competi­tive prices.

2. AAD supplies individual parts and modules that can be purchased by Dealers who are capable of
performing fault analysis and repair.

1-2 Introduction

1.2.3 Piece Parts Availability

Some replacement parts, spare parts, and/or product information can be ordered directly. If a
complete Motorola part number is assigned to the part, and it is not identified as Depot ONLY, it is
available from the Accessories and Aftermarket Division (AAD). If no part number is assigned, the
part is not normally available from Motorola. If the part number is appended with an asterisk, the part
is serviceable by a Motorola Depot only. If a parts list is not included, this generally means that no
user-serviceable parts are available for that kit or assembly.

Parts Order Entry

7:00 A.M. to 7:00 P.M. (Central Standard Time)
Monday through Friday (Chicago, U.S.A.)

To Order Parts:

1-800-422-4210, or 847-538-8023 (Voice)
1-847-538-8198 (Fax)
After hours or weekends:
1-800-925-4357

Motorola Parts

Accessories and Aftermarket Division
(United States and Canada)

Attention: Order Processing
1313 E. Algonquin Road
Schaumburg, IL 60196

Parts Identification

1-847-538-0021 or 1-800-422-4210 (Voice)
1-847-538-8194 (Fax)

Introduction 1-3

1.2.4 Technical Support

Technical support is available to assist the dealer/distributor in resolving any malfunction which may
be encountered. Initial contact should be by telephone to Customer Resources wherever possible.
When contacting Motorola Technical Support, be prepared to provide the product
and the unit’s

For service you can contact the following Depot. Please call and confirm your return prior to sending
the unit to the depot for service.

Motorola Toronto Service Centre

3900 Victoria Park Avenue
North York, Ontario, Canada M2H 3H7
1-800-543-3222
1-416-756-5841
1-888-331-9872 (Fax)

serial number

.

model number

1-4 Introduction

1.3 Radio Model Information

The model number and serial number are located on a label attached to the back of your radio. You
can determine the RF output power, frequency band, protocols, and physical packages. The example
below shows one portable radio model number and its specific characteristics.

Table 1-1: Radio Model Number (Example: AAH25RDC9GB3)

9

D

C

DU

3

AA

or

LA

A or LA = Motorola Internal Use

Type

of Unit

Model

Series

H25 R

Freq.
Band

UHF1

(403-470

MHz)

H = Portable

K

(136 -174

MHz)

Power

Level

4-5W

Physical

Packages

HT750•LS

MTX450
MTX150

MTX850
MTX950

H

MTX4500
MTX1500
MTX8250
MTX9250

Channel
Spacing

Program-

mable

Protocol

LTR

GB

Privacy

Plus

GE

Privacy

Plus

w/Roaming

Feature

Level

HT750•LS

MTX450
MTX150

MTX850
MTX950

6

MTX4500
MTX1500
MTX8250
MTX9250

Model

Revision

AN

Model

Package

Chapter 2
Intrinsically Safe Radio Information

2.1 FMRC Approved Equipment

Anyone intending to use a radio in a location where hazardous concentrations of flammable material
exist (hazardous atmosphere) is advised to become familiar with the subject of intrinsic safety and
with the National Electric Code NFP A 70 (National Fire Protection Association) Article 500 (hazardous
[classified] locations).

An Approval Guide, issued b y F actory Mutual Research Corporation (FMRC), lists manufacturers and
the products approved by FMRC for use in such locations. FMRC has also issued a voluntary
approval standard for repair service (“Class Number 3605”).

FMRC Approval labels are attached to the radio to identify the unit as being FM Approved for
specified hazardous atmospheres. This label specifies the hazardous Class/Division/Group along
with the part number of the battery that must be used. Depending on the design of the portable unit,
this FM label can be found on the back of the radio housing or the bottom of the radio housing. Their
Approval mark is shown below.

2-1

FM

APPROVED

WARNING: Do not operate radio communications equipment in a hazardous atmosphere
unless it is a type especially qualified (e.g. FMRC Approved) for such use. An explosion or

!

fire may result.
WARNING: Do not operate the FMRC Approved Product in a hazardous atmosphere if it has

been physically damaged (e.g. cracked housing). An explosion or fire may result.
WARNING: Do not replace or charge batteries in a hazardous atmosphere. Contact sparking

may occur while installing or removing batteries and cause an explosion or fire.
WARNING: Do not replace or change accessories in a hazardous atmosphere. Contact

sparking may occur while installing or removing accessories and cause an explosion or fire.
WARNING: Do not operate the FMRC Approved Product unit in a hazardous location with the

accessory contacts exposed. Keep the connector cover in place when accessories are not
used.

WARNING: Turn radio off before removing or installing a battery or accessory.
WARNING: Do not disassemble the FMRC Approved Product unit in any way that exposes

the internal electrical circuits of the unit.

Radios must ship from the Motorola manufacturing facility with the hazardous atmosphere capability
and FM Approval labeling. Radios will not be “upgraded” to this capability and labeled in the

field.
A modification changes the unit’s hardware from its original design configuration. Modifications can

only be done by the original product manufacturer at one of its FMRC audited manufacturing
facilities.

2-2 Intrinsically Safe Radio Information

WARNING: Failure to use an FMRC Approved Product unit with an FMRC Approved battery
or FMRC Approved accessories specifically approved for that product may result in the dan-

!

gerously unsafe condition of an unapproved radio combination being used in a hazardous
location.

Unauthorized or incorrect modification of an FMRC Approved Product unit will negate the Approval
rating of the product.

2.2 Repair of FMRC Approved Products

REPAIRS FOR MOTOROLA FMRC APPROVED PRODUCTS ARE THE RESPONSIBILITY OF THE
USER.

You should not repair or relabel any Motorola manufactured communication equipment bearing the
FMRC Approval label (“FMRC Approved Product”) unless you are familiar with the current FMRC
Approval standard for repairs and service (“Class Number 3605”).

You may want to consider using a repair facility that operates under 3605 repair service approval.

WARNING: Incorrect repair or relabeling of any FMRC Approved Product unit could
adversely affect the Approval rating of the unit.

!

WARNING: Use of a radio that is not intrinsically safe in a hazardous atmosphere could
result in serious injury or death.

FMRC’s Approval Standard Class Number 3605 is subject to change at any time without notice to
you, so you may want to obtain a current copy of 3605 from FMRC. Per the December, 1994
publication of 3605, some key definitions and service requirements are as follows:

2.2.1 Repair

A repair constitutes something done internally to the unit that would bring it back to its original
condition Approved by FMRC. A repair should be done in an FMRC Approved facility.

Items not considered as repairs are those in which an action is performed on a unit which does not
require the outer casing of the unit to be opened in a manner which exposes the internal electrical
circuits of the unit. You do not have to be an FMRC Approved Repair Facility to perform these actions.

2.2.2 Relabeling

The repair facility shall have a method by which the replacement of FMRC Approval labels are
controlled to ensure that any relabeling is limited to units that were originally shipped from the
Manufacturer with an FM Approval label in place. FMRC Approval labels shall not be stocked by the
repair facility. An FMRC Approval label shall be ordered from the original manufacturer as needed to
repair a specific unit. Replacement labels may be obtained and applied by the repair f acility providing
satisfactory evidence that the unit being relabeled was originally an FMRC Approv ed unit. Verification
may include, but is not limited to: a unit with a damaged Approval label, a unit with a defective housing
displaying an Approval label, or a customer invoice indicating the serial number of the unit and
purchase of an FMRC Approved model.

2.2.3 Do Not Substitute Options or Accessories

The Motorola communications equipment certified by Factory Mutual is tested as a system and
consists of the FM Approved portable, FM Approved battery, and FM Approved accessories or
options, or both. This Approved portable and battery combination must be strictly observed. There
must be no substitution of items, even if the substitute has been previously Approved with a different
Motorola communications equipment unit. Approved configurations are listed in the FM Approval
guide published by FMRC , or in the product FM Supplement. This FM Supplement is shipped with FM

Intrinsically Safe Radio Information 2-3

Approved radio and battery combination from the manufacturer. The Approval guide, or the Approval
standard Class Number 3605 document for repairs and service, can be ordered directly through
Factory Mutual Research Corporation located in Norwood, Massachusetts.

HT750¥LS Radio Exploded Mechanical View and Parts List

3

-1

3.1 HT750¥LS Radio Exploded Mechanical View and Parts List

8

9

10

11

12

13

14

15

16

18

19

20

21

22

24

23

25

26

27

28

29

30

31

33

34

35

7

5

6

2

3

4

1

32

17

Item

Motorola

Part Number

Description

1 See Accesso-

ries Chapter

Antenna

2 3680529Z01 Knob, Volume
3 3680530Z01 Knob, Channel Selector
4 1380525Z01 Escutcheon, Top
5 3380644Z01 Escutcheon, Label
6 3280533Z01 Seal, Control Top
7 6180527Z01 Litepipe, Tx
8 HHLN4059

HHLN4071

Nameplate, HT750¥LS

Nameplate, HT750¥LS DTMF
9 1586059A01 Dust Cover, Universal Connector
10 1386058A01 Escutcheon, Universal Flex
11 1580666Z03

1580666Z04

Front Cover, Basic

Front Cover with Keypad (DTMF)

12 Not Field

Replaceable

Escutcheon, FM

13 7580532Z01 Keypad, Side Control
14 1380528Z01 Bezel, Side Control
15 7580620Z03

7580620Z04

Keypad, Blank

Keypad, Full
16 0104007J99 Keypad Board Assembly
17 4280498Z01 Retainer, Keypad PCB
18 3586057A01 Felt Speaker
19 1480577C01 Boot, Microphone
20 5085962A02 Speaker
21 5013920A04 Microphone
22 8480549Z01 Flex Speaker-Microphone
23 2113740A41 Capacitor, 33pF

Item

Motorola

Part Number

Description

24 4280504Z01 Retainer, Speaker
25 0304726J04 Screw
26 See section 8.1 Ctrl/RF Board Assembly
27 8480475Z02 Flex, Keypad/Controller
28 1480652Z01 Insulator, Antenna
29 7580556Z01 Pad, Thermal
30 3280534Z01 Seal, Contact
31 3280536Z01 Gasket, O-Ring
32 3980698Z01 Contact, Ground, Compliant, UHF
33 2780518Z01 Chassis
34 See Accesso-

ries Chapter

Battery

35 HLN9714 Beltclip

Item

Motorola

Part Number

Description

3

-2 MTX450 Radio Exploded Mechanical View and Parts List

3.2 MTX450 Radio Exploded Mechanical View and Parts List

8

9

10

11

12

13

14

15

16

18

19

20

21

22

24

23

25

26

27

28

29

30

31

33

34

35

7

5

6

2

3

4

1

32

17

Item

Motorola

Part Number

Description

1 See Accesso-

ries Chapter

Antenna

2 3680529Z01 Knob, Volume
3 3680530Z01 Knob, Channel Selector
4 1380525Z01 Escutcheon, Top
5 3380644Z01 Escutcheon, Label
6 3280533Z01 Seal, Control Top
7 6180527Z01 Litepipe, Tx
8 HHLN4212 Nameplate, MTX450
9 1586059A01 Dust Cover, Universal Connector
10 1386058A01 Escutcheon, Universal Flex
11 1580666Z03

1580666Z04

Front Cover, Basic
Front Cover with Keypad (DTMF)

12 Not Field

Replaceable

Escutcheon, FM

13 7580532Z01 Keypad, Side Control
14 1380528Z01 Bezel, Side Control
15 7580620Z03

7580620Z04

Keypad, Blank
Keypad, Full

16 0104007J99 Keypad Board Assembly
17 4280498Z01 Retainer, Keypad PCB
18 3586057A01 Felt Speaker
19 1480577C01 Boot, Microphone
20 5085962A02 Speaker
21 5013920A04 Microphone
22 8480549Z01 Flex Speaker-Microphone
23 2113740A41 Capacitor, 33pF

Item

Motorola

Part Number

Description

24 4280504Z01 Retainer, Speaker
25 0304726J04 Screw
26 See section 8.1 Ctrl/RF Board Assembly
27 8480475Z02 Flex, Keypad/Controller
28 1480652Z01 Insulator, Antenna
29 7580556Z01 Pad, Thermal
30 3280534Z01 Seal, Contact
31 3280536Z01 Gasket, O-Ring
32 3980698Z01 Contact, Ground, Compliant, UHF
33 2780518Z01 Chassis
34 See Accesso-

ries Chapter

Battery

35 HLN9714 Beltclip

Item

Motorola

Part Number

Description

MTX4500 Radio Exploded Mechanical View and Parts List

3

-3

3.3 MTX4500 Radio Exploded Mechanical View and Parts List

8

9

10

11

12

13

14

15

16

17

18

19

21

22

23

24

25

27

26

28

29

30

31

32

33

34

35

36

37

39

40

41

7

5

6

2

3

4

1

38

20

Item

Motorola

Part Number

Description

1 See Accesso-

ries Chapter

Antenna

2 3280529Z01 Knob, Volume
3 3280530Z01 Knob, Frequency
4 1380525Z01

1380525Z03

Escutcheon, Top (16CH)

Escutcheon, Top (Dotted)
5 3380644Z01 Escutcheon, Label
6 3280533Z01 Seal, Control Top
7 6180527Z01 Litepipe, Tx
8 HHLN4213 Nameplate, MTX4500
9 1586059A01 Dust Cover, Univ Conn
10 1386058A01 Escutcheon, Univ Flex
11 1580666Z05 Front Cover
12 Non Field

Replaceable

*

Escutcheon, FM

13 7580532Z01 Keypad, Side Control
14 1380528Z01 Bezel, Side Control

15 7586065A01

7586065A02
758568OZ07

Keypad, Basic
Keypad, Full,

Keypad, Full, Privacy Plus
16 0104010J09 Keypad Board Assembly
17 7580540Z01 Pad Display
18 5104949J05 LCD Module
19 7580637Z01 Pad, LCD Back
20 4280498Z01 Retainer, Keypad PCB
21 3586057A01 Felt, Speaker
22 1480577C01 Boot, Microphone
23 5085962A02 Speaker
24 5013920A04 Microphone
25 8480549Z01 Flex Speaker-Microphone
26 2113740A41 Cap, 33pF
27 4280504Z01 Retainer, Speaker
28 1480503Z01 Boot, Backup Battery
29 6062884G01 Backup Battery

Item

Motorola

Part Number

Description

30 0304726J04 Screw
31 3980667Z01 Contact, Finger
32 See section 8.1 Ctr l/RF Board Assembly

33 8485615Z02 Flex, Keypad/Controller
34 1480652Z01 Insulator, Antenna
35 7580556Z01 Pad, Thermal
36 3280534Z01 Seal, Contact
37 3280536Z02 Gasket, O-Ring
38 3980698Z01 Contact, Ground (For UHF)
39 2780518Z01 Chassis
40 See Accesso-

ries Chapter

Battery

41 HLN9714 Beltclip

Item

Motorola

Part Number

Description

3

-4 MTX150 Radio Exploded Mechanical View and Parts List

3.4 MTX150 Radio Exploded Mechanical View and Parts List

8

9

10

11

12

13

14

15

16

18

19

20

21

22

24

23

25

26

27

28

29

30

31

33

34

35

7

5

6

2

3

4

1

32

17

Item

Motorola

Part Number

Description

1 Please refer to

section 7.1.1 on
page 7-1

Antenna

2 3680529Z01 Knob, Volume
3 3680530Z02 Knob, Channel Selector
3a 4285611Z01 Stop, Mechanical (4-Channel)
4 1380525Z01 Escutcheon, Top
4a 1380525Z04 Escutcheon, Top (4-Channel)
5 3380644Z01 Escutcheon, Label
6 3280533Z01 Seal, Control Top
7 HHLN4214 Litepipe, Tx
8 Nameplate, MTX150 DTMF

Nameplate, MTX150
9 1586059A01 Dust Cover, Universal Connector
10 1386058A01 Escutcheon, Universal Flex

11 1580666Z03

1580666Z04

Front Cover, Basic
Front Cover with Keypad (DTMF)

12 Not Field

Replaceable

Escutcheon, FM

13 7580532Z01 Keypad, Side Control
14 1380528Z01 Bezel, Side Control
15 7580620Z03

7580620Z04

Keypad, Blank

Keypad, Full
16 0104007J99 Keypad Board Assembly
17 4280498Z01 Retainer, Keypad PCB
18 3586057A01 Felt Speaker
19 1480577C01 Boot, Microphone
20 5085962A02 Speaker
21 5013920A04 Microphone
22 8480549Z01 Flex, Speaker-Microphone
2 2113740A41 Capacitor, 33pF

Item

Motorola

Part Number

Description

24 4280504Z01 Retainer, Speaker
25 0304726J04 Screw
26 See detailed

service manual

Ctrl/RF Board Assembly

27 8480475Z02 Flex, Keypad/Controller
28 1480652Z01 Insulator, Antenna
29 7580556Z01 Pad, Thermal
30 3280534Z01 Seal, Contact
31 3280536Z01 Gasket, O-Ring
32 3980698Z01 Contact, Ground, Compliant, VHF
33a 2780518Z01 Chassis
33b 2780518Z03 Chassis
34 See section

7.1.5 on page 7­2

Battery

35 HLN9714 Beltclip

Item

Motorola

Part Number

Description

MTX1500 Radio Exploded Mechanical View and Parts List

3

-5

3.5 MTX1500 Radio Exploded Mechanical View and Parts List

8

9

10

11

12

13

14

15

16

17

18

19

21

22

23

24

25

27

26

28

29

30

31

32

33

34

35

36

37

39

40

41

7

5

6

2

3

4

1

38

20

Item

Motorola

Part Number

Description

1 Please refer to

section 7.1.1 on
page 7-1

Antenna

2 3680529Z01 Knob, Volume
3 3680530Z01 Knob, Channel Selector
4 1380525Z01 Escutcheon, Top
5 3380644Z01 Escutcheon, Label
6 3280533Z01 Seal, Control Top
7 6180527Z01 Litepipe, Tx
8 HHLN4215 Nameplate, MTX1500
9 1586059A01 Dust Cover, Universal Connector
10 1386058A01 Escutcheon, Universal Flex
11 1580666Z01

1580666Z02

Front Cover with DTMF

Front Cover without DTMF
12 Escutcheon, FM
13 7580532Z01 Keypad, Side Control

14 1380528Z01 Bezel, Side Control
15 7580620Z02 Keypad, Full
16 0104007J99 Keypad Board Assembly
17 7580540Z01 Pad Display
18 5104949J05 LCD Module
19 7580637Z01 Pad, LCD Back
20 4280498Z01 Retainer, Keypad PCB
21 3586057A01 Felt Speaker
22 1480577C01 Boot, Microphone
23 5085962A02 Speaker
24 5013920A04 Microphone
25 8480549Z01 Flex, Speaker-Microphone
26 2113740A41 Capacitor, 33pF
27 4280504Z01 Retainer, Speaker
28 1480503Z01 Boot, Backup Battery
29 6062884G01 Backup Battery

Item

Motorola

Part Number

Description

30 0304726J04 Screw
31 3980667Z01 Contact, Finger
32 See detailed

manual

Ctrl/RF Board Assembly

33 8480475Z02 Flex, Keypad/Controller
34 1480652Z01 Insulator, Antenna
35 7580556Z01 Pad, Thermal
36 3280534Z01 Seal, Contact
37 3280536Z01 Gasket, O-Ring
38 3980698Z01 Contact, Ground, Compliant
39 2780518Z01 Chassis
40 See section

7.1.5 on page 7­2

Battery

41 HLN9714 Beltclip

Item

Motorola

Part Number

Description

3

-6

Chapter 4
Transceiver Performance Testing

For the missing sub-sections in this chapter, please refer to Basic Service Manual 68P80906Z54.

4.1 RF T est Mode

When the radio is operating in its normal environment, the radio’s microcontroller controls the RF
channel selection, transmitter key-up , and receiv er muting. However , when the unit is on the bench f or
testing, alignment, or repair, it is remov ed from its normal environment and cannot receiv e commands
from its system. Therefore, the internal microcontroller does not key the transmitter or unmute the
receiver. This prevents the use of a normal tuning procedure. To solve this problem, a special “test
mode” is incorporated into the radio.

Note 1: On UHF, LTR models, the radio must be in either conventional or LTR mode.
Note 2: The test mode procedure that follows assumes that the Customer Programming Software

Front Panel Access screen has both the FPA and RF TEST boxes selected. Select from the
programming screen to enable or disable certain features of the radio RF test mode.

● FPA entry not selected blocks all test modes.

● FPA entry selected and RF TEST not selected blocks RF test mode.

● FPA entry selected and RF TEST selected enables all test modes.

4-1

To enter the test mode for a display radio:

1. Turn the radio on.

2. Within ten seconds after the self test is complete, press ‘side button 2’, sho wn in Figure
4-1, five times in succession.

3. After “CSQ CHXX SP25” appears on the display, the radio is on channel XX (see Note
on following page), carrier squelch mode, 25 kHz channel spacing. Each additional
press of ‘side button 2’ (see Table 4-2) scrolls to the next channel spacing, and a corre­sponding set of tones are sounded. Refer to Figure 4-2 for test mode information for a
two-line display radio.

4. Press ‘side button 1’ to scroll through the test environments listed in Table 4-1 in Basic
Service Manual 68P80906Z54.

5. Press ‘side button 2’ for 3 seconds to switch the radio to the control head test mode.
‘LCD Test’ appears on the display.

6. Press ‘side button 1’ to turn on all the dots of the first character. Another ‘side button 1’
press turns on all the dots of the next character, continuing until the last character is
reached.

7. Press ‘side button 1’ at the end of the LCD test to activate the ‘Icon Test’. The next ‘side
button 1’ press turns on the first icon.

8. Press ‘side button 1’ at the end of the Icon Test to activate the button test. Pressing any
side button (except ‘side button 1’), or any keypad button during the LCD test or Icon
test immediately activates this test. A good button press is verified by a chirp.

9. Press ‘side button 2’ for 3 seconds in the control head test mode to return the radio to
the RF Test mode.

4-2 Transceiver Performance Testing

10. Turn radio off to exit test mode.

Note: XX = channel number (01 - 14)

To enter the test mode for a non-display radio:

1. Turn the radio on.

2. Within ten seconds after the self test is complete, press ‘side button 2’ (Figure 4-1) five
times in succession.

3. Press ‘side button 1’ the number of times listed in Table 4-1 to get the number of corre­sponding beeps.

4. Turn radio off to exit test mode.

5. To access all 14 test modes on a 4-channel radio, the frequency knob and mechanical
stop sleeve must be removed (see paragraph 3-8 exploded view diagram).

Button Test (For models with ”G” in location 10 of model number Example: AAH25RCH6GB6AN)

1. Press the orange button; “3/1” appears which indicates that switch 3 is in the closed condition.

2. Release the orange button; “3/0” appears which indicates that switch 3 is in the open condition.

3. Rotate the mode selector knob; “4/0”through “4/15” appears which indicates that knob 4 is in
mode position 1 through 15.

4. Rotate the volume control; “2/0” through “2/255” appears.

5. Press SB1, view “96/1”; release, view “96/0”.

6. Press SB2, view “97/1”; release, view “97/0”.

7. Press SB3, view “98/1”; release view “98/0”.

8. Press PTT button, view “1/1”; release view “1/0”.

Keypad (For models with ”G” in location 10 of model number Example: AAH25RCH6GB6AN)

1. Press 0, view “48/1”; release, view “48/0”.

2. Press 1, view “49/1”; release, view “49/0”.

3. Press 2, view “50/1”; release, view “50/0”.

4. Press 3, view “51/1”; release, view “51/0”.

5. Press 4, view “52/1”; release, view “52/0”.

6. Press 5, view “53/1”; release, view “53/0”.

7. Press 6, view “54/1”; release, view “54/0”.

8. Press 7, view “55/1”; release, view “55/0”.

9. Press 8, view “56/1”; release, view “56/0”.

10. Press 9, view “57/1”; release, view “57/0”.

11. Press *, view “58/1”; release, view “58/0”.

12. Press #, view “59/1”; release, view “59/0”.

13. Press <, view “128/1”; release, view “128/0”.

14. Press HOME, view “129/1”; release, view “129/0”.

15. Press >, view “130/1”; release, view “130/0”.

16. Press Option Select1, view “135/1”; release, view “135/0”.

Transceiver Performance Testing 4-3

17. Press Option Select2, view “136/1”; release, view “136/0”.

18. Press Option Select3, view “137/1”; release, view “137/0”.

19. Pressing SB2 for 3 seconds in the Control Head Test mode will cause the radio to return to the RF
Test mode.

Channel
Selector
Knob

On/Off
Knob

Side Button 1

(programmable)

Side Button 2

(programmable)

Side Button 3

(programmable)

Annunciators

Figure 4-1. Radio Side Button Locations

Phone Call

Figure 4-2. Two-Line Display

4-4 Transceiver Performance Testing

Table 4-1. Receiver Performance Checks

Test Name Service Monitor Radio Test Set Comments

Reference
Frequency

Rated Audio Mode: GEN

Distortion As above, except to distor-

Sensitivity
(SINAD)

Noise
Squelch
Threshold
(only radios
with conven­tional sys­tem need to
be tested)

Mode: PWR MON
4th channel test frequency*
Monitor: Frequency error
Input at RF In/Out

Output level: 1.0mV RF
4th channel test frequency*
Mod: 1kHz tone at
3kHz deviation
Monitor: DVM: AC Volts

tion
As above, except SINAD,

lower the RF level for 12dB
SINAD.

RF level set to 1mV RF As above PTT to OFF

As above, e xcept change fre­quency to a conventional
system. Raise RF level from
zero until radio unsquelches.

TEST MODE,
Test Channel
4 carrier
squelch out­put at
antenna

TEST MODE
Test Channel
4 carrier
squelch

As above As above Distortion 3.0%

As above PTT to OFF

out of TEST
MODE; select
a conven­tional system

PTT to continu­ous (during the
performance
check)

PTT to OFF
(center), meter
selector to
Audio PA

(center)

(center), meter
selection to
Audio PA,
speaker/load to
speaker

As above Unsquelch to occur at

Frequency error to be
±600 Hz UHF

Set volume control to

3.16Vrms

Typical
RF input to be

0.25µV

Set volume control to

3.16Vrms

<0.25µV.
Preferred SINAD =
8dB

* See Table 4-4 of Basic Service Manual 68P80906Z54 for Test Frequencies.

Transceiver Performance Testing 4-5

Table 4-2. Transmitter Performance Checks

Test

Name

Reference
Frequency

Power RF As above As above As above Refer to Specifications
Voice

Modulation

Voice
Modulation
(internal)

Service Monitor Radio Test Set Comments

Mode: PWR MON
4th channel test frequency*
Monitor: Frequency error
Input at RF In/Out

Mode: PWR MON
4th channel test frequency*
atten to -70dB, input to RF
In/Out
Monitor: DVM, AC Volts
Set 1kHz Mod Out level for

0.025Vrms at test set,
80mVrms at AC/DC test set
jack

Mode: PWR MON
4th channel test frequency*
atten to -70dB, input to RF
In/Out

TEST MODE,
Test Channel
4 carrier
squelch

As above As above, meter

TEST MODE,
Test Channel
4 carrier
squelch out­put at
antenna

PTT to continu­ous (during the
performance
check)

selector to mic

Remove modu­lation input

Frequency error
±600 Hz UHF

Deviation:
UHF:
≥ 4.0 KHz but ≤ 5.0
kHz (25 KHz Ch Sp)
Global.
4KHz (20 kHz Ch Sp)
U.S. and Canada.

Press PTT switch on
radio. Say “four” loudly
into the radio mic.
Measure deviation:
UHF:
≥ 4.0 kHz but ≤ 5.0
KHz (25 kHz Ch Sp)

High-Speed
Data Modu­lation***

Low-Speed
Data Modu­lation UHF

DTMF
Modulation

PL/DPL
Modulation

***MDC
* See Table 4-4 of Basic Service Manual 68P80906Z54 for Test Frequencies.

As above TEST MODE,

Test Channel
4 high speed
output at
antenna

As above TEST MODE,

Test Channel
4 TLS output
at antenna

As above,
4th channel test frequency*

As above
4th channel test frequency*
BW to narrow

TEST MODE,
Test Channel
4 DTMF out­put at
antenna

TEST MODE,
Test Channel
4
TPL
DPL

PTT to continu­ous (during the
performance
check)

PTT to continu­ous (during the
performance
check)

As above Deviation:

As above Deviation:

Deviation:
UHF: ≥ 2.5 kHz but ≤

3.5 KHz (25 kHz Ch
Sp)

Deviation:
UHF: ≥500Hz but ≤
1000Hz (25 kHz Ch
Sp)

UHF: ≥ 3.05 kHz but ≤

3.45 kHz (25 kHz Ch
Sp)

UHF: ≥500Hz but ≤
1000Hz (25 kHz Ch
Sp)

4-6 Transceiver Performance Testing

This page intentionally left blank.

Chapter 5
Radio Tuning, Programming, and Cloning

5.1 Cloning (Conventional and LTR)

Cloning is the same for both the Conventional and LTR radio. Cloning is the process of copying the
content of one radio (source radio) into another radio (target radio). Radio content refers to system­type features such as frequency, squelch type options, trunking, etc.

Note: Cloning can be performed only on radios with identical model numbers and software options.
Radio functionality inherent in one radio cannot be cloned to another radio that does not contain the

same functionality. Tuning and alignment information are not transferable and are not affected by
cloning.

Signaling Identification Numbers (IDs) are duplicated in the cloning process. Unique IDs may be
assigned with the CPS.

Note: Unsuccessful cloning attempts will not damage the radio.
Procedure:

5-1

1. Turn source and target radios off.

2. Connect cloning cable to side connector of both radios.

3. Turn on target radio.

4. On source radio, simultaneously press ‘side b uttons 1 and 2’, sho wn in Figure 5-3, then turn radio
on. Both radios produce a “clone-entry” tone and turn on their green LEDs. Display radios show
“Cloning T o” (source radio) and “Program” (target radio).

5. Release both side buttons. The electronic transfer process begins and will take approximately one
to three minutes.

6. When cloning is completed, both radios reset themselves and turn their green LEDs off. The
source radio produces a “clone-exit” tone and displays “Clone Complete”.

7. Turn both radios off.

8. Disconnect the cloning cable from both radios and turn them on for normal operation.

On/Off

Knob

Side Button 1

(programmable)

Side Button 2

(programmable)

Side Button 3

(programmable)

Figure 5-1. Radio Side Button Locations

5-2 Radio Tuning, Programming, and Cloning

5.1.1 Error Codes (Display Radios Only)

● “ERR: Mismatch” - The model numbers or the code plug versions are not the same for both radios.

Cloning cannot be performed.

● “ERR: Timeout” - Communication between the two radios was not established or was disrupted

during the cloning process. If this occurs, check the cloning cable and all connections. Repeat the
cloning procedure.

5.2 Cloning (Privacy Plus)

This function is used to copy codeplug information from one radio to another one. A radio and RIB
must be properly connected to the computer and power turned on before you attempt the PROGRAM
function. The time required to PROGRAM a codeplug will depend on the computer and the size of the
codeplug you are programming. Only radios with the same model number, protocol option and
codeplug version may be cloned. Trunked radios may not be cloned unless System Keys have been
loaded for each trunking system ID . Tuning and alignment information are not transferable and are not
affected by cloning. Signalling Identification are duplicated in the cloning process. Unique IDs may be
assigned with the CPS.

WARNING: Do NOT turn off the radio or disconnect it from the computer while attempting to
PROGRAM the codeplug. Interrupting the programming process WILL DESTROY the code-

!

plug contents and completely DISABLE the radio.

Procedure:

1. Use the READ RADIO function to read the radio codeplug to be cloned. i.e. the “Source” code­plug.

2. If required, enter the Individual ID’s for the new radio. Trunking system keys (or FTR Key) are
required for cloning the Trunking System Data.

3. If required, go to the SDF merge screen, to merge SDF Trunking System Data.

4. Connect “Target” radio to the computer and press READ SERIAL NUMBER button to read the
“Target” radio’s serial number. This number must be different from the “Source” codeplug, or the
cloning progress will fail.

5. Connect “Target” radio to the computer, and press the PR OGRAM b utton to program the “Source”
codeplug into the “Target” radio.

6. The CPS will validate the code plug.

7. If it fails a warning screen will be displayed informing of the incompatibility between the CPS and
code plug, otherwise the information is written into the radio’s code plug.

Chapter 6
Power Up Self-Test

6.1 Error Codes - Conventional and LTR Radios

Turning on the radio starts a self-test routine that checks the RAM, ROM checksum, EEPROM
hardware, and EEPROM checksum. If these checks are successful, the radio generates two high­pitched self-test pass tones, or a musical tone (selected in CPS). If the self-test is not successful, one
low-pitched tone is heard. Radios with displays are able to display the error codes. The displayed
error codes and related corrections are listed as follows:

Table 6-1: Power-up Display Codes - (Conventional Radios)

6-1

If the error code

displayed is...

“RAM TST ERROR” RAM test failure. Retest the radio by turning it off and turning it on

“ROM CS ERROR” Wrong ROM check-

“EEPRM HW ERROR” Codeplug structure

“EEPRM CS ERROR” Wrong codeplug

No Display Bad display module

then, there is

a...

sum.

mismatch or non
existence of
codeplug.

checksum.

connection or dam­aged display mod­ule.

To correct the problem...

again. If message reoccurs, replace RAM (U405).
Reprogram FLASH memory, then retest. If message

reoccurs, replace ROM (U406).
Reprogram codeplug with correct version and retest

radio. If message reoccurs, replace EEPROM
(U407).

Reprogram codeplug.

Check connection between main board and display
module or replace with new display module.

6-2 Power Up-Self-Test

6.2 Error Codes - Privacy Plus

At power-up, the radio performs cursory tests to determine if its basic electronics and software are in
working order. Problems detected during these tests are presented as error codes on the radio
display. The presence of an error code should prompt the user that a problem e xists and that a service
technician should be contacted. Self-test errors are classified as either fatal or non-fatal. Fatal errors
will inhibit user operation, non-fatal errors will not. Use Table 6-2: Power-up Display Codes to aid in
understanding particular power-up error code displays.

Table 6-2: Power-up Display Codes

Failure Display

FAIL 01/81 FATAL External ROM/Flash checksum error Bad ROM data, Defective ROM
FAIL 01/82 FATAL External EEPROM checksum error Bad external codeplug data,

ERROR 01/02 NON-FATAL External EEPROM checksum error Bad external codeplug data
FAIL 01/84 FATAL External EEPROM checksum blank Unprogrammed external code-

FAIL 01/88 FATAL External RAM error Defective RAM
FAIL 01/90 FATAL Hardware failure Defective IC
FAIL 01/92 FATAL Internal EEPROM checksum error Bad internal codeplug data,

ERROR 01/12 NON-FATAL Internal EEPROM checksum error Bad internal codeplug data
FAIL 01/94 FATAL Internal EEPROM checksum blank Unprogrammed internal code-

FAIL 01/98 FATAL Internal RAM error Defective microcontroller

Type of

Failure

Description Possible Source

Defective external EEPROM

plug data

Defective microcontroller

plug data

NOTE Due to the nature of fatal ROM & RAM error, it may not be possible to present an error

code on the display. In these cases the radio will attempt to display the appropriate
error code, generate an illegal mode tone for one second and then reset its micr ocon­troller .

Chapter 7
Accessories

7.1 HT750•LS/MTX450/MTX4500/MTX150/MTX1500 Accessories

7.1.1 Antennas

UHF 1 403-470 MHz, Ferrule Connector

PMAE4002 403-433 MHz Stubby
PMAE4003 433-470 MHz Stubby
NAE6483 403-520 MHz Whip

VHF 136-174 MHz, Ferrule Connector

PMAD4012 Stubby Antenna, 136-155 MHz

7-1

PMAD4013 Stubby Antenna, 155-174 MHz
PMAD4014 14 cm. Helical, Standard Length - 136-155 MHz (Red Code)
PMAD4015 14 cm. Helical, Standard Length - 155-174 MHz (Black Code)
PMAD4023 14 cm. Helical, Standard Length -150-161 MHz
PMAD4025 Stubby Antenna, 150-161 MHz

7.1.2 Carrying Accessories

All Models/All Battery Chemistries:
HLN9952 Carry Holder, Belt Clip
HLN9714 Spring 2-1/2” Belt Clip
HLN9701 Nylon Carry Case with Beltloop

7.1.3 Carry Cases

HT750•LS, MTX450 Ultra-High and High Capacity Battery Carry Cases

HLN9665 Standard Leather Case, Beltloop
HLN9676 Standard Leather Case, Swivel

MTX4500 Ultra-High and High Capacity Battery Carry Cases

HLN9689 Standard Leather Case, DTMF, Beltloop
HLN9694 Standard Leather Case, DTMF, Swivel

HT750•LS,MTX450 Lithium Ion Battery Carry Cases

HLN9652 Standard Leather Case, Beltloop, Thin Battery

7-2 Accessories

HLN9670 Standard Leather Case, Swive, Thin Batteryl

MTX4500 Lithium Ion Battery Carry Cases

HLN9677 Standard Leather Case, DTMF, Beltloop, Thin Battery
HLN9690 Standard Leather Case, DTMF, Swivel, Thin Battery

7.1.4 Chargers

AAHTN3000 120V Rapid Rate Single Unit Charger, U.S. 3-Prong Plug
HTN9000 Rapid Rate Single Unit (Pocket Only)
EPNN5751 120V Tr ansformer Only
AAHTN3003 120V Multi-Unit Rapid Rate Charger, U.S. 3-Prong Plug
NLN7967 Mount, Wall Kit for Multi-Unit Charger

7.1.5 Batteries

HNN9008 1200 mAH NiMH High Capacity Battery (Standard With Unit)
HNN9009 1900 mAH NiMH Ultra High Capacity Battery
HNN9010 1850 mAH NiMH Ultra High Capacity Battery Factory Mutual (FM)
HNN9011 1200 mAH NiCd High Capacity Battery Factory Mutual (FM)
HNN9012 1350 mAH NiCd High Capacity Battery
HNN9013 1200 mAH Lithium Ion High Capacity Battery

7.1.6 Adapters

AAHLN9716 GP300/P1225/P1225•LS Audio Accessory Adapter-FM Approved

7.1.7 Miscellaneous

HLN9820 Dust Cover for Accessory Connector
HLN9793 Charger Insert Spacer - Compatible with “A” version chargers only
HLN9794 Charger Insert Spacer - Compatible with “B” version chargers only

7.1.8 Service Aids

H5177 Customer Programming Software (CPS) - 3 Years Subscription

RKN4073 Cloning Cable, portable Professional Radio Only

(not compatible with BDN6706 or BDN6646)

Includes AARKN4074 Programming Test Cable

AARKN4074 Programming/Test Cable [(requires a Radio Interface Box (RIB)]
RKN4075 Ribless Programming Cable (provides interface between

A0180305G54 Battery Eliminator Cable. Requires RLN4510 (7.5 volt source)

computer and portable radio)

Accessories 7-3

RLN4510 7.5 Volt Universal Battery Eliminator
AA8180384F68 Bench test housing eliminator/test fixture. Requires RLN4510

7.5V
HHLN4134 Ferrule to BNC adapter
RLN4460 Test Box
HVN9025 Customer Programming Software -CD ROM (HT750•LS)
HVN9067 Customer Programming Software -CD ROM (MTX450 and

MTX4500)

7.1.9 Audio Accessories

AARMN4017 Ultra-Lightweight Headset with Boom Microphone -FM Approved
AARMN4018 Lightweight Headset with Boom Microphone and In Line PTT - FM

Approved

AARMN4019 Medium Weight Dual Muff Headset, Over the Head with Noise

Cancelling Mic and IN Line PTT - FM Approved

AARMN4020 Heavy Duty Behind the Head Headset with Noise Cancelling

Boom Microphone and PTT on Earcup - FM Approved

Note: NOT for use with MTX450 and MTX4500
AARMN4021 Ear Piece without Volume Control (Beige) - FM Approved
AARMN4022 2 Wire Ear Piece with Microphone and PTT (Beige) - FM

Approved
AARMN4028 Ear Piece without Volume Control (Black) - FM Approved
AARMN4029 2 Wire Ear Piece with Microphone and PTT (Black) - FM Approved

7.1.10 Option Boards (HT750•LS only)

AAHLN9729 DTMF Decode Option Board with Manual (Field Install only)
AAHLN9725 Voice Storage Option Board with Manual (Field Install only)

7.1.11 Remote Speaker Microphones

AAHMN9052 Remote Speaker Standard Microphone - FM Approved
AAHMN9053 Remote Speaker Noise Cancelling Microphone with 3.5 mm.

Audio Accessory Jack - FM Approved
AAHKN9055 Replacement Cable for Standard and Noise Cancelling

Microphone

7-4 Accessories

7.1.12 Manuals

6881088C41 HT750•LS User Guide (French, and English)
6881093C96 MTX150/MTX450 User Guide (French, and English)
6881093C97 MTX1500/MTX4500 User Guide (French, and English)
6881093C57 HT750•LS/MTX150/MTX1500/MTX450/MTX4500 Service

Manual Supplement, Level 1 & 2 (English)

6880906Z54 Basic Service Manual Level 1 & 2 (English)

7.1.13 Retrofit Front Cover Kits

HLN4065A DTMF Retrofit Kit (HT750•LS Only)

Chapter 8
Model Chart and Test Specifications

8.1 UHF 403-470 MHz (HT Series)

HT Series, UHF, 403-470 MHz

Model Description

AAH25RDC9DU3AN HT750•LS, 403-470 MHz, 4W, 16-Ch

Item Description

X PMLE4148 HT750•LS Back Cover Kit
X PMLN4216 HT750•LS Front Housing Kit
X NAE6483 (Whip) antenna (403-512 MHz)
X 6881088C41 HT750•LS User Guide (French/English)
x = Indicates one of each is required.

8-1

8.2 UHF 403-470 MHz (MTX Series)

MTX Series, 403-470 MHz

Model Description

AAH25RDC9GB3AN MTX450, 403-470 MHz, 4W, 16-Ch

AAH25RDH9GB6AN MTX4500 403-470 MHz, 4W, 160-Ch

Item Description

X PMLE4192 MTX450 Back Cover Kit

X PMLE4193 MTX4500 Back Cover Kit

X PMLN4216 Front Housing Kit (Non-Keypad)

X PMLN4373 Front Housing Kit (Keypad)
X X PMAE4002 Antenna, Stubby, 403-433 MHz
X X PMAE4003 Antenna, Stubby, 433-470 MHz
X X NAE6483 Antenna, Whip, 403-520 MHz
X 6881093C96 MTX450 User Guide (French/English)

X 6881093C97 MTX4500 User Guide (French/English)
x = Indicates one of each is required.

8-2 Model Chart and Test Specifications

8.3 VHF 136-174 MHz (MTX Series)

MTX Series, 136-174 MHz

Model Description

AAH25KDC9GE3AN MTX150, 136-174 MHz, 5W, 16-Ch

AAH25KDH9GE6AN MTX1500 136-174 MHz, 5W, 160-Ch

Item Description

X PMLD4170 MTX150 Back Cover Kit

X PMLD4171 MTX1500 Back Cover Kit

X PMLN4216 Front Housing Kit (Non-Keypad)

X PMLN4373 Front Housing Kit (Keypad)
X X PMAD4012 VHF Stubby Antenna, 136-155 MHz
X X PMAD4013 VHF Stubby Antenna, 155-174 MHz
X X PMAD4014
X X PMAD4015
X X PMAD4023
X X PMAD4025 VHF Stubby Antenna, 150-161 MHz
X 6881093C96 MTX150 User Guide (French/English)

X 6881093C97 MTX1500 User Guide (French/English)
x = Indicates one of each is required.

14 cm. Helical, Standard Length - 136-155 MHz (Red Code)
14 cm. Helical, Standard Length - 155-174 MHz (Black Code)
14 cm. Helical, Standard Length -150-161 MHz

Model Chart and Test Specifications 8-3

8.4 Specifications - HT750•LS/MTX450/MTX4500/MTX150/MTX1500
Radios

General

Specification UHF VHF

Model Numbers:
HT750•LS/MTX450
MTX4500
MTX150
MTX1500

AAH25RDC9GB3AN
AAH25RDH9GB6AN

AAH25KDC9GE3AN
AAH25KDH9GE6AN

Frequency Range:
Frequency Stability:

(-30°C to +60°C, 25°C Ref.)
Channel Capacity:

HT750•LS/MTX450
MTX4500

Channel Spacing: 12.5/20/25 KHz
Power Supply: 7.5 volts rechargeable battery
Dimensions:

WithNiMH High Capacity Battery:
With NiMH Ultra-High Capacity Battery:
With NiCd Battery:
With LiIon Battery:

Weight:
With NiMH High Capacity Battery:
With NiMH Ultra-High Capacity Battery:
With NiCd Battery:
With LiIon Battery:

Average Battery Life @ 5-5-90 Duty Cycle*:
With NiMH High Capacity Battery:
With NiMH Ultra-High Capacity Battery:
With NiCd Battery:
With LiIon Battery:

Low Power
11 hours
14 hours
12 hours
11 hours

403-470 MHz 136-174 MHz

±5 PPM @ 25 KHz

±2.5 PPM @ 12.5 KHz

16 Channels

160 Channels

5.40 in. x 2.26 in. x 1.50 in. (137mm x 57.5 mm x 37.5mm)

5.40 in. x 2.26 in. x 1.60 in. (137mm x 57.5 mm x 40mm)

5.40 in. x 2.26 in. x 1.60 in. (137mm x 57.5 mm x 40mm)

5.40 in. x 2.26 in. x 1.30 in. (137mm x 57.5 mm x 33mm)

15.0 ounces (420 grams)

17.5 ounces (500 grams)

15.8 ounces (450 grams)

12.5 ounce (350 grams)
High Power

8 hours
11 hours
9 hours
8 hours

Sealing: Passes rain testing per IP54 and MIL-STD 810E
Shock: Meets MIL-STD-810-C,D & E and TIA/EIA 603
Vibration: Meets MIL-STD-810-C,D & E and TIA/EIA 603
Dust: Meets MIL-STD-810-C,D & E and IP54
Humidity: Meets MIL-STD-810-C,D & E and TIA/EIA 603

* 5% receive, 5% transmit, 90% standby

8-4 Model Chart and Test Specifications

Transmitter

Specification UHF VHF

Power Output NiMH @ 7.5V: 1W/4W 1W/5W
Spurs/Harmonics: -36 dBm < 1GHz

-30 dBm > 1 GHz

Audio Response:
(from 6 dB/oct. Pre-Emphasis, 300 to 3000
Hz)

Audio Distortion:
@ 1000 Hz, 60%
Rated Max. Dev.

Modulation Limiting: ±2.5 KHz @ 12.5 KHz

FM Hum and Noise: -40 dB Typical

+1 to -3 dB

< 5%

±4.0 KHz @ 20 KHz
±5.0 KHz @ 25 KHz

Receiver

Specification UHF VHF

Sensitivity (12 dB SINAD) EIA: 0.35 µV
Sensitivity (20 dB SINAD) ETS: 0.5 µV
Intermodulation: -65 dB
Adjacent Channel Selectivity ETS: -60 dB @ 12.5 KHz

-70 dB @ 20/25 KHz
Spurious Rejection: -70 dB
Rated Audio: 0.5 W
Audio Distortion @ Rated Audio: 3% T ypical
Hum and Noise: (With Low Level Expansion

Enabled)
Audio Response: (from 6 dB/oct. de-Emphasis, 300

to 3000 Hz)
Conducted Spurious Emission: -57 dBm <1 GHz

Specifications subject to change without notice. All electrical specifications and methods refer to EIA/TIA 603
standards. PRO Series radios meet or exceed requirements of MIL STD 810 C, D, E.

-45 dB @ 12.5 KHz/-50 dB @ 20/25 KHz

+1 to -3 dB

-47 dBm >1 GHz

C

A, Motorola, Professional Radio - As Dedicated As You Are, HT

Series, MTX Series, and Call Alert are trademarks of Motorola, Inc.
LTR is a registered trademark of E.F. Johnson Company.
© 2000, 2001 Motorola, Inc. All Rights Reserved. Printed In U.S.A.

*6881093C57*

68P81093C57-B

quality

versatility