Motorola solutions ST7500 User manual

ST7500 Basic Service
Manual
*MN004528A01*
MN004528A01-AF
NOVEMBER 2019
© 2019 Motorola Solutions, Inc. All rights reserved

Contents
List of Figures..............................................................................................................6
List of Tables............................................................................................................... 8
List of Procedures.....................................................................................................10
Copyrights................................................................................................................. 12
Document History..................................................................................................... 13
Scope of this Manual................................................................................................ 14
Notations Used in This Manual................................................................................15
Safety Information.....................................................................................................16
Compliance with RF Exposure Standards................................................................................... 16
Federal Communication Commission (FCC) Regulations................................................ 16
RF Energy Exposure Awareness, Control Information, and Operational Instructions
for Occupational Use................................................................................................... 17
RF Exposure Compliance and Control Guidelines........................................................... 17
Operating Instructions............................................................................................ 17
Approved Accessories...................................................................................................... 18
Additional Information....................................................................................................... 18
Intrinsically Safe Radio Information............................................................................................. 18
Operational Cautions for Intrinsic Safe Equipment........................................................... 18
Repair............................................................................................................................... 19
Do Not Substitute Options or Accessories........................................................................19
Electromagnetic Interference/Compatibility................................................................................. 20
European Union Directives Conformance Statement.......................................................20
Use of Communication Devices While Driving............................................................................ 20
Operational Warnings....................................................................................................... 21
Operational Cautions........................................................................................................ 21
Warranty and Service Support.................................................................................22
Warranty Period and Return Instructions.....................................................................................22
After Warranty Period.................................................................................................................. 22
Related Publications.................................................................................................23
Chapter 1: Model Information.................................................................................. 25
1.1 ST7500 Model Specifications................................................................................................ 25
1.2 Sales Model Nomenclature....................................................................................................27
Chapter 2: Overview................................................................................................. 29
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2.1 Digital Modulation Technology...............................................................................................29
2.2 Voice Compression Technology............................................................................................ 29
2.3 Transceiver............................................................................................................................ 29
2.3.1 Digital Section.......................................................................................................... 30
2.3.2 Transmitter Path...................................................................................................... 30
2.3.3 Receiver Path.......................................................................................................... 30
2.3.4 Frequency Generating Section................................................................................ 31
2.4 Bluetooth Section...................................................................................................................31
2.5 Global Navigation Satellite System Section...........................................................................31
Chapter 3: Programming the Radio........................................................................32
Chapter 4: Test Setup and Testing..........................................................................33
4.1 Typical Test Setup................................................................................................................. 33
4.1.1 Assembly Procedures.............................................................................................. 35
4.1.2 Disassembly Procedures......................................................................................... 37
4.2 Flashing Mode....................................................................................................................... 39
4.2.1 Connecting the Radio in Blank Flash Mode.............................................................39
4.2.2 Connecting the Radio in Normal Mode.................................................................... 41
4.2.3 Connecting the Radio in UART Mode......................................................................42
4.3 Test Check List...................................................................................................................... 43
4.3.1 Transmitter Tests..................................................................................................... 44
4.3.2 Call Processing Tests.............................................................................................. 44
4.3.3 Duplex Test..............................................................................................................45
4.4 Configuring IFR 3901/IFR 3902/IFR 3920 Setup...................................................................45
4.5 Configuring IFR 2968 Setup.................................................................................................. 46
4.6 Configuring IFR 3901/IFR 3902/IFR 3920 Manual Screen Test............................................47
4.7 Configuring IFR 2968 Manual Screen Test........................................................................... 48
4.8 RF Tests................................................................................................................................ 48
4.8.1 Testing Receiver using IFR 3901/IFR 3902/IFR 3920............................................. 48
4.8.2 Testing Receiver using IFR 2968.............................................................................49
4.8.3 Testing Transmitter using IFR 3901/IFR 3902/IFR 3920......................................... 49
4.8.4 Testing Transmitter using IFR 2968.........................................................................49
4.9 Call Processing Tests............................................................................................................ 50
4.9.1 Talk Back using IFR 3901/IFR 3902/IFR 3920........................................................ 50
4.9.2 Talk Back using IFR 2968........................................................................................50
4.9.3 Call to Mobile........................................................................................................... 51
4.10 Digital Duplex Test (Tx) using IFR 3901/IFR 3902/IFR 3920.............................................. 51
4.11 Digital Duplex Test (Tx) using IFR 2968..............................................................................52
4.12 Manual Mode Testing.......................................................................................................... 53
4.12.1 Testing in DALT Mode........................................................................................... 53
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4.12.2 Testing Charger Recognition................................................................................. 61
4.13 Service Flowchart................................................................................................................ 62
4.14 Man Down Calibration Data.................................................................................................63
4.14.1 Testing for Man Down Calibration Data................................................................. 63
Chapter 5: Maintenance............................................................................................65
5.1 Preventive Maintenance........................................................................................................ 65
5.2 Safe Handling of CMOS and LDMOS Devices......................................................................67
5.3 General Repair Procedures and Techniques........................................................................ 67
5.4 Pre-baking of Integrated Circuits........................................................................................... 69
5.5 Level 1 and Level 2 Maintenance.......................................................................................... 70
5.6 Replacement Parts................................................................................................................ 70
5.6.1 Radio Replacement Parts List................................................................................. 70
5.6.2 Accessories Replacement Parts List....................................................................... 73
5.7 Radio Disassembly and Reassembly.................................................................................... 75
5.7.1 Torque Specification Chart...................................................................................... 75
5.7.2 Disassembling the Radio......................................................................................... 75
5.7.2.1 Removing the Antenna...............................................................................76
5.7.2.2 Removing the Battery Cover...................................................................... 76
5.7.2.3 Removing the Battery.................................................................................77
5.7.2.4 Removing the Back Cover......................................................................... 77
5.7.2.5 Removing the Main Board .........................................................................78
5.7.2.6 Removing the Internal Antenna Module Assembly.................................... 79
5.7.2.7 Removing the OLED Display Module Assembly........................................ 79
5.7.2.8 Removing the Vibrator............................................................................... 80
5.7.2.9 Removing the Front Keypad...................................................................... 80
5.7.3 Reassembling the Radio..........................................................................................82
5.7.3.1 Installing the Front Keypad........................................................................ 82
5.7.3.2 Installing the Vibrator................................................................................. 83
5.7.3.3 Installing the OLED Display Module Assembly.......................................... 84
5.7.3.4 Installing the Internal Antenna Module Assembly...................................... 84
5.7.3.5 Installing the Main Board............................................................................85
5.7.3.6 Installing the Back Cover........................................................................... 86
5.7.3.7 Inserting the Battery................................................................................... 88
5.7.3.8 Attaching the Battery Cover....................................................................... 88
5.7.3.9 Installing the Antenna.................................................................................89
5.8 Radio Leak Test.....................................................................................................................90
5.8.1 Vacuum Leak Test................................................................................................... 90
5.8.1.1 Performing Vacuum Leak Test ..................................................................91
5.8.2 Performing Leak Area Troubleshooting................................................................... 92
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5.8.2.1 Performing Front Housing Kit Troubleshooting.......................................... 93
5.8.2.2 Performing Battery Cover Kit Troubleshooting...........................................94
5.8.2.3 Performing Miscellaneous Troubleshooting............................................... 94
Appendix A: Service Information.............................................................................95
A.1 Service Information............................................................................................................... 95
A.2 Service Information – APAC..................................................................................................96
A.3 Recommended Programming Equipment............................................................................. 98
A.4 Service Replacement Kit Matrix............................................................................................ 99
Appendix B: Service Aids...................................................................................... 101
Glossary...................................................................................................................102
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List of Figures
Figure 1: Battery Eliminator Overview.................................................................................................... 34
Figure 2: Typical Test Setup...................................................................................................................35
Figure 3: Battery Eliminator Insertion..................................................................................................... 36
Figure 4: RF cable kit insertion...............................................................................................................37
Figure 5: Removing RF Cable Kit...........................................................................................................38
Figure 6: Battery eliminator removal.......................................................................................................39
Figure 7: Connecting the Radio in Blank Flash Mode (1 of 2)................................................................40
Figure 8: Connecting the Radio in Blank Flash Mode (2 of 2)................................................................41
Figure 9: Connecting the radio in Normal mode.....................................................................................42
Figure 10: Connecting the radio in UART mode.....................................................................................43
Figure 11: Service Flowchart..................................................................................................................62
Figure 12: Exploded View.......................................................................................................................71
Figure 13: Removing the Antenna..........................................................................................................76
Figure 14: Unlocking the Battery Cover..................................................................................................76
Figure 15: Removing the Battery Cover................................................................................................. 77
Figure 16: Removing the Battery............................................................................................................77
Figure 17: Removing the Tamper Label................................................................................................. 77
Figure 18: Removing the Main Screws...................................................................................................78
Figure 19: Removing the Back Cover.....................................................................................................78
Figure 20: Detaching the Top Flex Connector........................................................................................78
Figure 21: Detaching the Bottom Connector Flex Connector.................................................................79
Figure 22: Removing the Main Board.....................................................................................................79
Figure 23: Detaching the Internal Antenna Module Assembly............................................................... 79
Figure 24: Detaching the Front Keypad Board Connector..................................................................... 80
Figure 25: Removing the OLED Display Module Assembly................................................................... 80
Figure 26: Removing the Vibrator...........................................................................................................80
Figure 27: Removing the Front Keypad Screw.......................................................................................81
Figure 28: Inserting the Front Housing Kit Into the ST7500 Front Keypad Service Removal Fixture.... 81
Figure 29: Detaching the Front Keypad..................................................................................................81
Figure 30: Removing the Front Keypad..................................................................................................81
Figure 31: Inserting the Front Keypad ................................................................................................... 82
Figure 32: Inserting the Front Housing Kit Into the ST7500 Front Keypad Service Assembly Fixture... 83
Figure 33: Installing the Front Keypad....................................................................................................83
Figure 34: Attaching the Front Keypad Screw........................................................................................83
Figure 35: Installing the Vibrator.............................................................................................................83
Figure 36: Replacing the OLED Flex Adhesive...................................................................................... 84
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Figure 37: Inserting the OLED Display Jacket........................................................................................84
Figure 38: Attaching the Front Keypad Board Connector.......................................................................84
Figure 39: Installing the Internal Antenna Module Assembly................................................................. 85
Figure 40: Checking the Vibrator Spring, Internal Antenna Spring, Speaker/Bottom Mic Spring,
Earpiece Flex Spring, PTT and Side Buttons Spring.........................................................................85
Figure 41: Inserting the OLED Flex Connector...................................................................................... 86
Figure 42: Insert the Main Board............................................................................................................ 86
Figure 43: Inserting the Top Flex and the Bottom Connector Flex Connector....................................... 86
Figure 44: Checking the Thermal Pad and Butterfly Clips......................................................................87
Figure 45: Installing the Back Housing................................................................................................... 87
Figure 46: Attaching the Main Screws....................................................................................................87
Figure 47: Placing a New Tamper Label................................................................................................ 88
Figure 48: Inserting the Battery.............................................................................................................. 88
Figure 49: Unlock State.......................................................................................................................... 88
Figure 50: Attaching the Battery Cover.................................................................................................. 89
Figure 51: Locking the Battery Cover..................................................................................................... 89
Figure 52: Installing the Antenna............................................................................................................89
Figure 53: Vacuum Leak Test Setup...................................................................................................... 91
Figure 54: Radio in Leak Test Fixture.................................................................................................... 92
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List of Figures
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List of Tables
Table 1: Document History..................................................................................................................... 13
Table 2: Quick Start Guides................................................................................................................... 23
Table 3: User Manuals........................................................................................................................... 23
Table 4: Other Related Manuals.............................................................................................................24
Table 5: ST7500 Sales Models.............................................................................................................. 25
Table 6: General Specifications for 380–430 MHz Sales Models.......................................................... 25
Table 7: Receiver Specifications for 380–430 MHz Sales Models......................................................... 26
Table 8: Transmitter Specifications for 380–430 MHz Sales Models..................................................... 26
Table 9: Model Numbering Scheme....................................................................................................... 27
Table 10: Sales Models – Description of Positions................................................................................ 27
Table 11: Battery Eliminator Overview................................................................................................... 34
Table 12: Test Setup for 380–430 MHz Radio Models...........................................................................43
Table 13: Man Down Icon Display..........................................................................................................63
Table 14: Lead Free Solder Wire Part Number List............................................................................... 68
Table 15: Lead Free Solder Paste Part Number List..............................................................................68
Table 16: Moisture Sensitivity Levels (MSL).......................................................................................... 69
Table 17: Radio Replacement Parts List................................................................................................ 71
Table 18: Antennas................................................................................................................................ 73
Table 19: Antenna Rings........................................................................................................................ 73
Table 20: Audio Accessories.................................................................................................................. 73
Table 21: Operations Critical Wireless Accessories...............................................................................73
Table 22: Batteries and Chargers...........................................................................................................74
Table 23: Carry Accessories.................................................................................................................. 74
Table 24: Power Cords...........................................................................................................................74
Table 25: Power Supply......................................................................................................................... 74
Table 26: Programming Cable................................................................................................................74
Table 27: Miscellaneous.........................................................................................................................75
Table 28: Torque Specification Chart..................................................................................................... 75
Table 29: Other Vacuum Leak Test Parts.............................................................................................. 90
Table 30: Service Information – Telephone Numbers and Addresses of the Asia and Pacific
Motorola Solutions Centers............................................................................................................... 96
Table 31: Recommended Programming Equipment.............................................................................. 98
Table 32: Service Replacement Kit Matrix (for APAC)........................................................................... 99
Table 33: Service Replacement Kit Matrix (for EMEA)...........................................................................99
Table 34: Service Replacement Kit Matrix for Mainboard (for APAC)....................................................99
Table 35: Service Replacement Kit Matrix for Mainboard (for EMEA)................................................. 100
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Table 36: Service Aids List................................................................................................................... 101
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List of Procedures
Assembly Procedures ............................................................................................................................35
Disassembly Procedures .......................................................................................................................37
Connecting the Radio in Blank Flash Mode .......................................................................................... 39
Connecting the Radio in Normal Mode ..................................................................................................41
Connecting the Radio in UART Mode ................................................................................................... 42
Configuring IFR 3901/IFR 3902/IFR 3920 Setup .................................................................................. 45
Configuring IFR 2968 Setup .................................................................................................................. 46
Configuring IFR 3901/IFR 3902/IFR 3920 Manual Screen Test ............................................................47
Configuring IFR 2968 Manual Screen Test ........................................................................................... 48
Testing Receiver using IFR 3901/IFR 3902/IFR 3920 ...........................................................................48
Testing Receiver using IFR 2968 .......................................................................................................... 49
Testing Transmitter using IFR 3901/IFR 3902/IFR 3920 .......................................................................49
Testing Transmitter using IFR 2968 ...................................................................................................... 49
Talk Back using IFR 3901/IFR 3902/IFR 3920 ......................................................................................50
Talk Back using IFR 2968 ..................................................................................................................... 50
Call to Mobile .........................................................................................................................................51
Digital Duplex Test (Tx) using IFR 3901/IFR 3902/IFR 3920 ................................................................ 51
Digital Duplex Test (Tx) using IFR 2968 ................................................................................................52
Manual Mode Testing ............................................................................................................................ 53
Testing in DALT Mode ...........................................................................................................................53
Testing Charger Recognition .................................................................................................................61
Testing for Man Down Calibration Data .................................................................................................63
Disassembling the Radio .......................................................................................................................75
Removing the Antenna .......................................................................................................................... 76
Removing the Battery Cover ................................................................................................................. 76
Removing the Battery ............................................................................................................................ 77
Removing the Back Cover .....................................................................................................................77
Removing the Main Board ..................................................................................................................... 78
Removing the Internal Antenna Module Assembly ................................................................................79
Removing the OLED Display Module Assembly ................................................................................... 79
Removing the Vibrator ...........................................................................................................................80
Removing the Front Keypad ..................................................................................................................80
Reassembling the Radio ....................................................................................................................... 82
Installing the Front Keypad ....................................................................................................................82
Installing the Vibrator .............................................................................................................................83
Installing the OLED Display Module Assembly ..................................................................................... 84
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List of Procedures
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