Motorola Two Way Portable Radio Ht750 Ht1250 Mtx850 Mtx1250 Mtx8250 Mtx9250 Basic 68p80906z54 D Manual

							xi
LIST OF TABLES
Table 1-1: Radio Model Number (Example: AAH25KDC9AA3AN) ...........................  1-4
Table 3-11: Service Aids ...........................................................................................  3-35
Table 3-12: Recommended Test Equipment ............................................................  3-36
Table 4-1: Test Environments (Side Button 1) ..........................................................  4-4
Table 4-2: Test Environments (Models with “G” in location 10 of model number EX: 
AAH25RCH6GB6AN) ..............................................................................  4-5
Table 4-3: Test Channel Spacing (Side Button 2).....................................................  4-5
Table 4-4: Test Frequencies (Using the Channel Selector Switch) ..........................  4-6
Table 4-5: Receiver Performance Checks ................................................................  4-7
Table 4-6: Transmitter Performance Checks ............................................................  4-8
Table 5-1: Software Installation Kits Radio Tuning Setup .........................................  5-1
Table 5-2: Initial Equipment Control Settings ............................................................  5-2
Table 6-1: Power-up Display Codes - (Conventional Radios)...................................  6-1
Table 6-2: Power-up Display Codes .........................................................................  6-2
Table 6-3: Power-up Display Codes (PassPort Trunking Controller Board) .............  6-3
Table 6-4: Operational Display Codes ......................................................................  6-3 
						

							xii
Notes 
						

							1-1
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 Manual revision 
or alternatively as additions.
1.2 Warranty and Service Support
Motorola offers support which includes: full exchange 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.)
1.2.1 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 your 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. Motorolas Radio Parts and Service Group offers repair service to users and dealers at competi-
tive prices. 
2. The Motorola Customer Care and Services Division (CCSD) supplies individual parts and mod-
ules that can be purchased by dealers who are capable of performing fault analysis and repair. 
						

							1-2Introduction
1.2.3 Piece Parts Availability
Some replacement parts, spare parts, and/or product information can be ordered directly.
Motorola Online:
Motorola Online users can access our online catalog at
https://www.motorola.com/businessonline
To register for online access, please call 800-814-0601.
Mail Orders:
Send written orders to the following addresses:
Telephone Orders
Customer Care and Services Division*
7:00 AM to 7:00 PM (Central Standard Time)
Monday through Friday (Chicago, U.S.A.)
1-800-422-4210
1-847-538-8023 (International Orders)
U.S. Federal Government Markets Division (USFGMD)
1-800-826-1913 Federal Government Parts - Credit Cards Only
8:30 AM to 5:00 PM (Eastern Standard Time)If... It Means That...
A complete Motorola part number is 
assigned to the part, and it is not identified 
as Depot ONLYThe part is available from the Customer Care 
and Services Division (CCSD).*
No part number is assigned The part is not normally available from 
Motorola.
The part number is appended with an 
asteriskThe part is serviceable by a Motorola Depot 
only.
A parts list is not included Generally, no user-serviceable parts are 
available for that kit or assembly.
*The Customer Care and Services Division 
(CCSD) was formerly known as the Accesso-
ries and Aftermarket Division (AAD).
Replacement Parts/
Test Equipment/Manuals/
Crystal Service Items:
Motorola Inc.
Customer Care and Services 
Division*
(United States and Canada)
Attention: Order Processing
1307 E. Algonquin Road
Schaumburg, IL 60196Federal Government Orders:
Motorola Inc.
U.S. Federal Government 
Markets Division
Attention: Order Processing
7230 Parkway Drive
Landover, MD 21076International Orders:
Motorola Inc.
Customer Care and Services 
Division*
(United States and Canada)
Attention: Order Processing
1307 E. Algonquin Road
Schaumburg, IL 60196 
						

							Introduction1-3
Fax Orders
Customer Care and Services Division*
1-800-622-6210
847-576-3023 (International)
USFGMD
(Federal Government Orders)
1-800-526-8641 (For Parts and Equipment Purchase Orders)
Parts Identification
Customer Care and Services Division*
(United States and Canada)
1-800-422-4210, menu 3
Product Customer Service
Customer Response Center
(Non-technical Issues)
1-800-247-2346
FAX:1-800-247-2347
*The Customer Care and Services Division (CCSD) was formerly known as the Accessories and 
Aftermarket Division (AAD).
1.2.4 Technical Support
Technical support is available to assist the dealer/distributor in resolving any malfunction which may 
be encountered. For service, contact the Service Depot in your area. If your area does not have a 
depot, please contact your Business Development Manager, Distributor, or contact Motorola 
Technical Support. When contacting Motorola Technical Support, keep the product model number 
and the unit’s serial number handy.
For service, contact one of the following Depots. Please call and confirm your return before sending 
the unit to the depot for service.
Motorola Radio Support Center
2200 Galvin Dr.
Elgin, IL 60123
1-800-227-6772
Motorola Toronto Service Center
3900 Victoria Avenue
North York, Ontario, Canada M2H 3H7
1-800-543-3222 
1-416-756-5841
1-888-331-9872 (Fax)
Motorola U.S. Federal Government Depot
4395 Nicole Drive
Lanham, MD 20706
1-800-969-6680
1-301-731-6676 
						

							1-4Introduction
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: AAH25KDC9AA3AN)
Type of 
UnitModel 
SeriesFreq. 
BandPower 
LevelPhysical 
PackagesChannel 
SpacingProtocolFeature 
LevelModel
RevisionModel 
Package
AA or
LAH25 K
VHF
(136-174 
MHz)C
1-3.9WC
HT750
MTX850
MTX850•LS
MTX950
(no display)9
Programma-
bleAA
Conventional3
HT750
MTX850
MTX850•LS
MTX950
(non-keypad)AN
R
UHF1
(403-470 
MHz)D
4-5WH
HT1250
HT1250•LS
MTX8250
MTX8250•LS
MTX9250
(1-Line Display)6
25 kHzDU
LT R5
HT1250
HT1250•LS
+
Limited
Keypad
S
UHF2
(450-512 
MHz)E
5.1-6WN
HT1550•XLS
(4-Line Display)4
12.5 kHzDP
PassPort6
HT1250
HT1250•LS
+
MTX8250
MTX8250•LS
MTX9250
Full Keypad
B
Low Band, 
R1 (29.7-
42.0 MHz)CK
MPT7
HT1250•LS
+
Limited
Keypad
MDC on Conv.
C
Low Band, 
R2 (35.0-
50.0 MHz)GB
Privacy Plus8
HT1550•XLS
U
800 MHz 
(806-821) 
(851-866)9
HT1250•LS
+
Full Keypad
MDC on Conv.
W
900 MHz
(896-902)
(935-941)
A or LA = Motorola Internal Use
H = Portable 
						

							2-1
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 
materials exist (hazardous atmosphere) is advised to become familiar with the subject of intrinsic 
safety and with the National Electric Code NFPA 70 (National Fire Protection Association) Article 500 
(hazardous [classified] locations).
An Approval Guide, issued by Factory 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 or the bottom of the radio housing. The FM Approval mark is 
shown below.
Radios must ship from the Motorola manufacturing facility with the Intrinsically Safe, hazardous 
atmosphere capability and FM Approval labeling. Radios will not be “upgraded” or converted to 
Intrinsically safe, and or labeled in the field, after it has been shipped from the manufacturing 
location.
• Do not operate radio communications equipment in a hazardous 
atmosphere unless it is a type especially qualified (for example, 
FMRC Approved) for such use. An explosion or fire may result.
• Do not operate an FMRC Approved Product in a hazardous 
atmosphere if it has been physically damaged (for example, 
cracked housing). An explosion or fire may result.
• 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.
• 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.
• Turn a radio off before removing or installing a battery or 
accessory.
• Do not disassemble an FMRC Approved Product unit in any way 
that exposes the internal electrical circuits of the unit.
FM
APPROVED
!
W A R N I N G
! 
						

							2-2Intrinsically Safe Radio Information
Modifications can only be made by the original product manufacturer (Motorola) at one of its FM 
audited manufacturing facilities.
2.2 Repair of FMRC Approved Products
REPAIRS FOR MOTOROLA PRODUCTS WITH FMRC APPROVAL 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”). Repairs and service to be done 
FM audited locations.
The following are key definitions, from the FMRC’s Approval Standard Class Number 3605, 1994.
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 audited 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. You do not 
have to be an FMRC audited 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 facility, 
provided there is satisfactory evidence that the unit being relabeled was originally an FMRC 
Approved 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.
• Failure to use an FMRC Approved portable radio unit with an 
FMRC Approved battery or FMRC Approved accessories 
specifically Agency approved for that product may result in the 
dangerously 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.
• Incorrect repair or relabeling of any FMRC Approved Product unit 
could adversely affect the Approval rating of the unit.
• Use of a radio that is not intrinsically safe in a hazardous 
atmosphere could result in serious injury or death.
!
W A R N I N G
!
!
W A R N I N G
! 
						

							Intrinsically Safe Radio Information2-3
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 FM 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 product listing. This FM product listing is shipped 
from the manufacturer with the FM Approved radio and battery combination. 
						

							2-4Intrinsically Safe Radio Information
Notes