Motorola HT750 Service Manual

Supplement toBasic Service Manual (Canada Only)Professional Portable Radio Basic Service Manual 68P80906Z54qualityversatilityProfessional RadioAs Dedi

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1-1 Chapter 1Introduction 1.1 Scope of Manual This manual is intended for use by service technicians familiar with similar types of equipment. It con

1-2 Introduction 1.2.3 Piece Parts Availability Some replacement parts, spare parts, and/or product information can be ordered directly. If a complet

Introduction 1-3 1.2.4 Technical Support Technical support is available to assist the dealer/distributor in resolving any malfunction which may be en

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 de

2-1Chapter 2Intrinsically Safe Radio Information2.1 FMRC Approved EquipmentAnyone intending to use a radio in a location where hazardous concentration

2-2 Intrinsically Safe Radio InformationUnauthorized or incorrect modification of an FMRC Approved Product unit will negate the Approval rating of the

Intrinsically Safe Radio Information 2-3Approved radio and battery combination from the manufacturer. The Approval guide, or the Approval standard Cla

HT750¥LS Radio Exploded Mechanical View and Parts List 3 -1 3.1 HT750¥LS Radio Exploded Mechanical View and Parts List891011121314151618192021222423

COMPUTER SOFTWARE COPYRIGHTS The Motorola products described in this manual may include copyrighted Motorola computer programs stored in semiconducto

3 -2 MTX450 Radio Exploded Mechanical View and Parts List 3.2 MTX450 Radio Exploded Mechanical View and Parts List89101112131415161819202122242325262

MTX4500 Radio Exploded Mechanical View and Parts List 3 -3 3.3 MTX4500 Radio Exploded Mechanical View and Parts List891011121314151617181921222324252

3 -4 MTX150 Radio Exploded Mechanical View and Parts List 3.4 MTX150 Radio Exploded Mechanical View and Parts List89101112131415161819202122242325262

MTX1500 Radio Exploded Mechanical View and Parts List 3 -5 3.5 MTX1500 Radio Exploded Mechanical View and Parts List891011121314151617181921222324252

3 -6

4-1Chapter 4Transceiver Performance TestingFor the missing sub-sections in this chapter, please refer to Basic Service Manual 68P80906Z54.4.1 RF Test

4-2 Transceiver Performance TestingTo enter the test mode for a non-display radio:Button Test (For models with ”G” in location 10 of model number Exam

Transceiver Performance Testing 4-317. Press Option Select2, view “136/1”; release, view “136/0”.18. Press Option Select3, view “137/1”; release, view

4-4 Transceiver Performance TestingTable 4-1. Receiver Performance Checks* See Table 4-4 of Basic Service Manual 68P80906Z54 for Test Frequencies.Tes

Transceiver Performance Testing 4-5***MDC* See Table 4-4 of Basic Service Manual 68P80906Z54 for Test Frequencies.Table 4-2. Transmitter Performance

i SAFETY AND GENERAL INFORMATION IMPORTANT INFORMATION ON SAFE AND EFFICIENT OPERATIONREAD THIS INFORMATION BEFORE USING YOUR MOTOROLA TWO-WAY RADIO

4-6 Transceiver Performance TestingThis page intentionally left blank.

5-1Chapter 5Radio Tuning, Programming, and Cloning5.1 Cloning (Conventional and LTR)Cloning is the same for both the Conventional and LTR radio. Cloni

5-2 Radio Tuning, Programming, and Cloning5.1.1 Error Codes (Display Radios Only)● “ERR: Mismatch” - The model numbers or the code plug versions are n

6-1Chapter 6Power Up Self-Test6.1 Error Codes - Conventional and LTR RadiosTurning on the radio starts a self-test routine that checks the RAM, ROM ch

6-2 Power Up-Self-Test6.2 Error Codes - Privacy PlusAt power-up, the radio performs cursory tests to determine if its basic electronics and software a

7-1Chapter 7Accessories7.1 HT750•LS/MTX450/MTX4500/MTX150/MTX1500 Accessories7.1.1 Antennas7.1.2 Carrying AccessoriesAll Models/All Battery Chemistrie

7-2 Accessories7.1.4 Chargers 7.1.5 Batteries 7.1.6 Adapters7.1.7 Miscellaneous7.1.8 Service AidsHLN9670 Standard Leather Case, Swive, Thin BatterylMT

Accessories 7-37.1.9 Audio Accessories 7.1.10 Option Boards (HT750•LS only)7.1.11 Remote Speaker MicrophonesRLN4510 7.5 Volt Universal Battery Elimina

7-4 Accessories7.1.12 Manuals 7.1.13 Retrofit Front Cover Kits 6881088C41 HT750•LS User Guide (French, and English)6881093C96 MTX150/MTX450 User Guide

8-1Chapter 8Model Chart and Test Specifications8.1 UHF 403-470 MHz (HT Series) 8.2 UHF 403-470 MHz (MTX Series) HT Series, UHF, 403-470 MHzModel Descri

ii Safety and General Information Antenna CareUse only the supplied or an approved replacement antenna. Unauthorized antennas, modifications, or att

8-2 Model Chart and Test Specifications8.3 VHF 136-174 MHz (MTX Series) MTX Series, 136-174 MHzModel DescriptionAAH25KDC9GE3AN MTX150, 136-174 MHz, 5W

Model Chart and Test Specifications 8-38.4 Specifications - HT750•LS/MTX450/MTX4500/MTX150/MTX1500 RadiosGeneralSpecification UHF VHFModel Numbers:HT750

8-4 Model Chart and Test SpecificationsTransmitterSpecification UHF VHFPower Output NiMH @ 7.5V: 1W/4W 1W/5WSpurs/Harmonics: -36 dBm < 1GHz -30 dBm

Supplement toBasic Service Manual (Canada Only)Professional Portable Radio Basic Service Manual 68P80906Z54qualityversatilityProfessional RadioAs Dedi

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 dri

iv Safety and General Information This page intentionally left blank

v Table of Contents SAFETY AND GENERAL INFORMATION ... i• RADIO FREQUENCY (RF

vi Chapter 5 Radio Tuning, Programming, and Cloning 5.1 Cloning (Conventional and LTR) .....

vii List of Figures Figure 3-1 HT750•LS Radio Exploded Mechanical View and Parts List...... 3-3Figure 3-2 MTX450 Radio Exploded Mecha