Motorola XTS 2250 Manuals

Manuals and User Guides for Motorola XTS 2250. We have 1 Motorola XTS 2250 manual available for free PDF download: Service Manual

Motorola XTS 2250 Service Manual

Motorola XTS 2250 Service Manual (914 pages)

Brand: Motorola | Category: Two-Way Radio | Size: 51.78 MB

Table of Contents

Foreword
2
- Safety Information
  2
- Manual Revisions
  2
- Computer Software Copyrights
  2
- Documentation Copyrights
  2
- Disclaimer
  2
- Trademarks
  2
Document History

3
- Table of Contents
  5
Chapter 1 Introduction

27
- General
  27
- Notations Used in this Manual
  27
Chapter 2.1 VHF Overall Characteristics

29
Chapter 3.1 VHF Radio Power

49
Chapter 4.1 VHF Detailed Theories of Operation

69
- Introduction
  69
- Frequency Synthesis
  69
- Antenna Switch
  70
- Receiver
  70
  - Front End
    71
  - Back End
    71
- Transmitter
  72
- VOCON Functional Blocks
  73
  - Controller and Memory Section
    73
    
    Patriot IC (U800)
    73
    
    Flash Memory (U803)
    76
    
    Sram (U804)
    76
    
    Figure 4.1-1. Controller Memory Interface
    77
  - Audio and Power Section
    78
    
    Mako IC (U701)
    78
    
    Audio Power Amplifier
    79
    
    Audio Pre-Amplifier
    79
    
    Regulator
    79
  - Interface Support Section
    80
    
    Mako IC U701
    80
    
    ESD Protection Circuitry
    81
    
    Universal Connector (Side Connector) Interface Circuitry
    81
    
    Figure 4.1-2. Universal (Side) Connector
    82
    
    Figure 4.1-3. VOCON Connector J650
    82
    
    Table 4.1-1. Option Select Functions
    82
    
    The Option Board
    83
    
    Encryption Module
    84
    
    Table 4.1-2. Encryption Module Software Kits and Algorithms
    84
    
    System Clocks
    85
  - Transmit Audio Path
    85
  - Figure 4.1-4. VOCON Transmit Audio Path
    85
  - Receive Audio Path
    86
  - Figure 4.1-5. VOCON Receive Audio Path
    86
- Chapter 4.2 UHF1 Detailed Theories of Operation
  87
  - Introduction
    87
  - Frequency Synthesis
    87
  - Antenna Switch
    88
  - Receiver
    89
    
    Front End
    89
    
    Back End
    90
  - Transmitter
    90
  - VOCON Functional Blocks
    91
    
    Controller and Memory Section
    91
    
    Patriot IC (U800)
    91
    
    Sram (U804)
    94
    
    Figure 4.2-1. Controller Memory Interface
    95
    
    Flash Memory (U803)
    95
    
    Audio and Power Section
    96
    
    Mako IC (U701)
    96
    
    Audio Power Amplifier
    97
    
    Audio Pre-Amplifier
    97
    
    Regulator
    97
    
    Interface Support Section
    98
    
    Mako IC U701
    98
    
    ESD Protection Circuitry
    99
    
    Universal Connector (Side Connector) Interface Circuitry
    99
    
    Figure 4.2-2. Universal (Side) Connector
    100
    
    Figure 4.2-3. VOCON Connector J650
    100
    
    Table 4.2-1. Option Select Functions
    100
    
    The Option Board
    101
    
    Encryption Module
    102
    
    Table 4.2-2. Encryption Module Software Kits and Algorithms
    102
    
    Figure 4.2-4. VOCON Transmit Audio Path
    103
    
    System Clocks
    103
    
    Transmit Audio Path
    103
    
    Figure 4.2-5. VOCON Receive Audio Path
    104
    
    Receive Audio Path
    104
- Chapter 4.3 UHF2 Detailed Theories of Operation
  105
  - Introduction
    105
  - Frequency Synthesis
    105
  - Antenna Switch
    106
  - Receiver
    107
    
    Front End
    107
    
    Back End
    108
  - Transmitter
    108
  - VOCON Functional Blocks
    109
    
    Controller and Memory Section
    109
    
    Patriot IC (U800)
    109
    
    Flash Memory (U803)
    112
    
    Sram (U804)
    112
    
    Figure 4.3-1. Controller Memory Interface
    113
    
    Audio and Power Section
    114
    
    Mako IC (U701)
    114
    
    Audio Power Amplifier
    115
    
    Audio Pre-Amplifier
    115
    
    Regulator
    115
    
    Interface Support Section
    116
    
    Mako IC U701
    116
    
    ESD Protection Circuitry
    117
    
    Universal Connector (Side Connector) Interface Circuitry
    117
    
    Figure 4.3-2. Universal (Side) Connector
    118
    
    Figure 4.3-3. VOCON Connector J650
    118
    
    Table 4.3-1. Option Select Functions
    118
    
    The Option Board
    119
    
    Encryption Module
    120
    
    Table 4.3-2. Encryption Module Software Kits and Algorithms
    120
    
    Figure 4.3-4. VOCON Transmit Audio Path
    121
    
    System Clocks
    121
    
    Transmit Audio Path
    121
    
    Figure 4.3-5. VOCON Receive Audio Path
    122
    
    Receive Audio Path
    122
- Chapter 4.4 700/800 Mhz Detailed Theories of Operation
  123
  - Introduction
    123
  - Frequency Synthesis
    123
  - Antenna Switch
    124
  - Receiver
    125
    
    Front End
    125
    
    Back End
    126
  - Transmitter
    126
  - VOCON Functional Blocks
    127
    
    Controller and Memory Section
    127
    
    Patriot IC (U800)
    127
    
    Flash Memory (U803)
    130
    
    Sram (U804)
    130
    
    Figure 4.4-1. Controller Memory Interface
    131
    
    Audio and Power Section
    132
    
    Mako IC (U701)
    132
    
    Audio Power Amplifier
    133
    
    Audio Pre-Amplifier
    133
    
    Regulator
    133
    
    Interface Support Section
    134
    
    Mako IC U701
    134
    
    ESD Protection Circuitry
    135
    
    Universal Connector (Side Connector) Interface Circuitry
    135
    
    Figure 4.4-2. Universal (Side) Connector
    136
    
    Figure 4.4-3. VOCON Connector J650
    136
    
    Table 4.4-1. Option Select Functions
    136
    
    The Option Board
    137
    
    Encryption Module
    138
    
    Table 4.4-2. Encryption Module Software Kits and Algorithms
    138
    
    System Clocks
    139
    
    Transmit Audio Path
    139
    
    Figure 4.4-4. VOCON Transmit Audio Path
    140
    
    Receive Audio Path
    140
    
    Figure 4.4-5. VOCON Receive Audio Path
    141
- Chapter 4.5 900 Mhz Detailed Theories of Operation
  143
  - Introduction
    143
  - Frequency Synthesis
    143
  - Antenna Switch
    144
  - Receiver
    145
    
    Front End
    145
    
    Back End
    146
  - Transmitter
    146
  - VOCON Functional Blocks
    147
    
    Controller and Memory Section
    147
    
    Patriot IC (U800)
    147
    
    Flash Memory (U803)
    150
    
    Sram (U804)
    150
    
    Figure 4.5-1. Controller Memory Interface
    151
    
    Audio and Power Section
    152
    
    Mako IC (U701)
    152
    
    Audio Power Amplifier
    153
    
    Audio Pre-Amplifier
    153
    
    Interface Support Section
    153
    
    Regulator
    153
    
    Mako IC U701
    154
    
    ESD Protection Circuitry
    155
    
    Universal Connector (Side Connector) Interface Circuitry
    155
    
    Figure 4.5-2. Universal (Side) Connector
    156
    
    Figure 4.5-3. VOCON Connector J650
    156
    
    Table 4.5-1. Option Select Functions
    156
    
    The Option Board
    156
    
    Encryption Module
    158
    
    Table 4.5-2. Encryption Module Software Kits and Algorithms
    158
    
    Figure 4.5-4. VOCON Transmit Audio Path
    159
    
    System Clocks
    159
    
    Transmit Audio Path
    159
    
    Figure 4.5-5. VOCON Receive Audio Path
    160
    
    Receive Audio Path
    160
Chapter 5 Troubleshooting Procedures

161
Chapter 6.1 VHF Troubleshooting Charts

167
Chapter 7.1 VHF Troubleshooting Waveforms

287
- Introduction
  287
- List of Waveforms
  287
- Table 7.1-1. List of Waveforms
  287
- RF Test Points
  288
- Figure 7.1-1. RF Block Diagram Test Points
  288
- Table 7.1-2. RF Block Diagram Probe/Test Points
  289
- Main Circuit Board RF Shield Locations
  290
- Table 7.1-3. Main Circuit Board Side 1 RF Shields
  290
- Table 7.1-4. Main Circuit Board Side 2 RF Shields
  291
- PP1 Antenna Input
  292
- PP2 TX Signal at Harmonic Filter Input
  293
- PP3 Coupler RF out
  294
- PP4 TX Signal at PA
  295
- TP5 Coupler RF Feedback to PCIC
  296
- TP6 PCIC Control Voltage
  297
- Pp7 Tx lo
  298
- PP8 Higher Level Voltage Multiplier
  299
- PP9 Superfilter Output
  300
- PP11 Prescalar Input to Fracn Synthesizer
  301
- PP12 Reference Crystal Output
  302
- TP13 Mod in
  303
- TP14 1St lo Control Voltage
  304
- PP15 VCO Output
  305
- PP17 Frequency out (16.8 Mhz)
  306
- PP18 RX RF Input at Antenna Switch
  307
- PP19 Antenna Switch Bias
  308
- PP20 Preselector Tuning Voltage
  309
- PP22 Analog 5V
  310
- PP23 Preselector 1 Output
  311
- PP24 Low-Noise Amplifier Output
  312
- PP25 Preselector 2 Output
  313
- PP26 Mixer out (IF)
  314
- PP27 Crystal Filter out
  315
- PP28 Abacus Analog 3V
  316
- PP29 2Nd lo Control Voltage
  317
- PP30 2Nd lo VCO Buffer Output
  318
- PP31 Analog 5V DC
  319
- PP32 Abacus Digital 3V
  320
- TX Audio 1 Khz Tone
  333
- Mhz Buffer Input and Output
  333
- Khz Clock Outputs
  333
- SPI B Data
  333
- RX Serial Audio Port (SAP)
  333
- List of Waveforms
  333
- Table 7.2-1. List of Waveforms
  333
- RF Test Points
  334
- Figure 7.2-1. RF Block Diagram Test Points
  334
- Table 7.2-2. RF Block Diagram Probe/Test Points
  335
- Main Circuit Board RF Shield Locations
  336
- Table 7.2-3. Main Circuit Board Side 1 RF Shields
  336
- Table 7.2-4. Main Circuit Board Side 2 RF Shields
  337
- PP1 Antenna Input
  338
- PP2 TX Signal at Harmonic Filter Input
  339
- PP3 Coupler RF out
  340
- PP4 TX Signal at PA
  341
- TP5 Coupler RF Feedback to PCIC
  342
- TP6 PCIC Control Voltage
  343
- Pp7 Tx lo
  344
- TP14 1St lo Control Voltage
  350
- PP15 VCO Output
  351
- PP17 Frequency out (19.2 Mhz)
  353
- PP26 Mixer out (IF)
  361
- PP31 Analog 5V DC
  366
- PP32 Abacus Digital 3V
  367
- TX Audio 1 Khz Tone
  381
- Mhz Buffer Input and Output
  381
- Khz Clock Outputs
  381
- SPI B Data
  381
- RX Serial Audio Port (SAP)
  381
- Introduction
  381
- List of Waveforms
  381
- Table 7.3-1. List of Waveforms
  381
- RF Test Points
  382
- Figure 7.3-1. RF Block Diagram Test Points
  382
- Table 7.3-2. RF Block Diagram Probe/Test Points
  383
- Main Circuit Board RF Shield Locations
  384
- Table 7.3-3. Main Circuit Board Side 1 RF Shields
  384
- Table 7.3-4. Main Circuit Board Side 2 RF Shields
  385
- PP1 Antenna Input
  386
- PP2 TX Signal at Harmonic Filter Input
  387
- PP3 Coupler RF out
  388
- PP4 TX Signal at PA
  389
- TP5 Coupler RF Feedback to PCIC
  390
- Pp7 Tx lo
  392
- PP32 Abacus Digital 3V
  414
- TX Audio 1 Khz Tone
  427
- Mhz Buffer Input and Output
  427
- Khz Clock Outputs
  427
- SPI B Data
  427
- RX Serial Audio Port (SAP)
  427
- List of Waveforms
  427
- Table 7.4-1. List of Waveforms
  427
- RF Test Points
  428
- Figure 7.4-1. RF Block Diagram Test Points
  428
- Table 7.4-2. RF Block Diagram Probe/Test Points
  429
- Main Circuit Board RF Shield Locations
  430
- Table 7.4-3. Main Circuit Board Side 1 RF Shields
  430
- Table 7.4-4. Main Circuit Board Side 2 RF Shields
  431
- PP1 Antenna Input
  432
- PP2 TX Signal at Harmonic Filter Input
  433
- PP3 Coupler RF out
  434
- PP4 TX Signal at PA
  435
- TP5 Coupler RF Feedback to PCIC
  436
- Pp7 Tx lo
  438
- Tp10 Trb
  441
- PP32 Abacus Digital 3V
  463
- TX Audio 1 Khz Tone
  477
- Mhz Buffer Input and Output
  477
- Khz Clock Outputs
  477
- SPI B Data
  477
- RX Serial Audio Port (SAP)
  477
- Introduction
  477
- List of Waveforms
  477
- Table 7.5-1. List of Waveforms
  477
- RF Test Points
  478
- Figure 7.5-1. RF Block Diagram Test Points
  478
- Table 7.5-2. RF Block Diagram Probe/Test Points
  479
- Main Circuit Board RF Shield Locations
  480
- Table 7.5-3. Main Circuit Board Side 1 RF Shields
  480
- Table 7.5-4. Main Circuit Board Side 2 RF Shields
  481
- PP1 Antenna Input
  482
- PP2 TX Signal at Harmonic Filter Input
  483
- PP3 Coupler RF out
  484
- PP4 TX Signal at PA
  485
- TP5 Coupler RF Feedback to PCIC
  486
- Pp7 Tx lo
  488
- Tp10 Trb
  491
  - SPI B Data
    517
  - PP33 SPI Data
    519
  - PP35 Universal Chip Select
    521
  - TP37 RX SSI Data
    523
  - TP39 RX SSI Frame Sync
    525
Chapter 8.1 VHF Troubleshooting Tables

527
Chapter 9.1 VHF Schematics, Board Overlays, and Parts Lists

637

Advertisement

Advertisement

Related Products

Motorola Categories

Cell Phone

Cell Phone Two-Way Radio Baby Monitor

Cordless Telephone

Cordless Telephone Radio

More Motorola Manuals