Motorola ASTRO XTS 2250 Manuals

Manuals and User Guides for Motorola ASTRO XTS 2250. We have 2 Motorola ASTRO XTS 2250 manuals available for free PDF download: Service Manual, Basic Service Manual

Motorola ASTRO XTS 2250 Service Manual

Motorola ASTRO XTS 2250 Service Manual (817 pages)

Brand: Motorola | Category: Portable Radio | Size: 44.21 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

25
- General
  25
- Notations Used in this Manual
  25
Chapter 2.1 VHF Overall Characteristics

27
Chapter 3.1 VHF Radio Power

47
Chapter 4.1 VHF Detailed Theories of Operation

67
- Introduction
  67
- Frequency Synthesis
  67
- Antenna Switch
  68
- Receiver
  68
  - Front End
    69
  - Back End
    69
- Transmitter
  70
- VOCON Functional Blocks
  71
  - Controller and Memory Section
    71
    
    Patriot IC (U800)
    71
    
    Flash Memory (U803)
    74
    
    Sram (U804)
    74
    
    Figure 4.1-1.Controller Memory Interface
    75
  - Audio and Power Section
    76
    
    Mako IC (U701)
    76
    
    Audio Power Amplifier
    77
    
    Audio Pre-Amplifier
    77
    
    Regulator
    77
  - Interface Support Section
    78
    
    Mako IC U701
    78
    
    ESD Protection Circuitry
    79
    
    Universal Connector (Side Connector) Interface Circuitry
    79
    
    Figure 4.1-2.Universal (Side) Connector
    80
    
    Figure 4.1-3.VOCON Connector J650
    80
    
    Table 4.1-1. Option Select Functions
    80
    
    The Option Board
    81
    
    Encryption Module
    82
    
    Table 4.1-2. Encryption Module Software Kits and Algorithms
    82
    
    System Clocks
    83
  - Transmit Audio Path
    83
  - Figure 4.1-4.VOCON Transmit Audio Path
    83
  - Receive Audio Path
    84
  - Figure 4.1-5.VOCON Receive Audio Path
    84
- Chapter 4.2 UHF1 Detailed Theories of Operation
  85
  - Introduction
    85
  - Frequency Synthesis
    85
  - Antenna Switch
    86
  - Receiver
    87
    
    Front End
    87
    
    Back End
    88
  - Transmitter
    88
  - VOCON Functional Blocks
    89
    
    Controller and Memory Section
    89
    
    Patriot IC (U800)
    89
    
    Sram (U804)
    92
    
    Figure 4.2-1.Controller Memory Interface
    93
    
    Flash Memory (U803)
    93
    
    Audio and Power Section
    94
    
    Mako IC (U701)
    94
    
    Audio Power Amplifier
    95
    
    Audio Pre-Amplifier
    95
    
    Regulator
    95
    
    Interface Support Section
    96
    
    Mako IC U701
    96
    
    ESD Protection Circuitry
    97
    
    Universal Connector (Side Connector) Interface Circuitry
    97
    
    Figure 4.2-2.Universal (Side) Connector
    98
    
    Figure 4.2-3.VOCON Connector J650
    98
    
    Table 4.2-1. Option Select Functions
    98
    
    The Option Board
    99
    
    Encryption Module
    100
    
    Table 4.2-2. Encryption Module Software Kits and Algorithms
    100
    
    Figure 4.2-4.VOCON Transmit Audio Path
    101
    
    System Clocks
    101
    
    Transmit Audio Path
    101
    
    Figure 4.2-5.VOCON Receive Audio Path
    102
    
    Receive Audio Path
    102
- Chapter 4.3 UHF2 Detailed Theories of Operation
  103
  - Introduction
    103
  - Frequency Synthesis
    103
  - Antenna Switch
    104
  - Receiver
    105
    
    Front End
    105
    
    Back End
    106
  - Transmitter
    106
  - VOCON Functional Blocks
    107
    
    Controller and Memory Section
    107
    
    Patriot IC (U800)
    107
    
    Flash Memory (U803)
    110
    
    Sram (U804)
    110
    
    Figure 4.3-1.Controller Memory Interface
    111
    
    Audio and Power Section
    112
    
    Mako IC (U701)
    112
    
    Audio Power Amplifier
    113
    
    Audio Pre-Amplifier
    113
    
    Regulator
    113
    
    Interface Support Section
    114
    
    Mako IC U701
    114
    
    ESD Protection Circuitry
    115
    
    Universal Connector (Side Connector) Interface Circuitry
    115
    
    Figure 4.3-2.Universal (Side) Connector
    116
    
    Figure 4.3-3.VOCON Connector J650
    116
    
    Table 4.3-1. Option Select Functions
    116
    
    The Option Board
    117
    
    Encryption Module
    118
    
    Table 4.3-2. Encryption Module Software Kits and Algorithms
    118
    
    Figure 4.3-4.VOCON Transmit Audio Path
    119
    
    System Clocks
    119
    
    Transmit Audio Path
    119
    
    Figure 4.3-5.VOCON Receive Audio Path
    120
    
    Receive Audio Path
    120
- Chapter 4.4 700/800 Mhz Detailed Theories of Operation
  121
  - Introduction
    121
  - Frequency Synthesis
    121
  - Antenna Switch
    122
  - Receiver
    123
    
    Front End
    123
    
    Back End
    124
  - Transmitter
    124
  - VOCON Functional Blocks
    125
    
    Controller and Memory Section
    125
    
    Patriot IC (U800)
    125
    
    Flash Memory (U803)
    128
    
    Sram (U804)
    128
    
    Figure 4.4-1.Controller Memory Interface
    129
    
    Audio and Power Section
    130
    
    Mako IC (U701)
    130
    
    Audio Power Amplifier
    131
    
    Audio Pre-Amplifier
    131
    
    Regulator
    131
    
    Interface Support Section
    132
    
    Mako IC U701
    132
    
    ESD Protection Circuitry
    133
    
    Universal Connector (Side Connector) Interface Circuitry
    133
    
    Figure 4.4-2.Universal (Side) Connector
    134
    
    Figure 4.4-3.VOCON Connector J650
    134
    
    Table 4.4-1. Option Select Functions
    134
    
    The Option Board
    135
    
    Encryption Module
    136
    
    Table 4.4-2. Encryption Module Software Kits and Algorithms
    136
    
    System Clocks
    137
    
    Transmit Audio Path
    137
    
    Figure 4.4-4.VOCON Transmit Audio Path
    138
    
    Receive Audio Path
    138
    
    Figure 4.4-5.VOCON Receive Audio Path
    139
- Chapter 4.5 900 Mhz Detailed Theories of Operation
  141
  - Introduction
    141
  - Frequency Synthesis
    141
  - Antenna Switch
    142
  - Receiver
    143
    
    Front End
    143
    
    Back End
    144
  - Transmitter
    144
  - VOCON Functional Blocks
    145
    
    Controller and Memory Section
    145
    
    Patriot IC (U800)
    145
    
    Flash Memory (U803)
    148
    
    Sram (U804)
    148
    
    Figure 4.5-1.Controller Memory Interface
    149
    
    Audio and Power Section
    150
    
    Mako IC (U701)
    150
    
    Audio Power Amplifier
    151
    
    Audio Pre-Amplifier
    151
    
    Interface Support Section
    151
    
    Regulator
    151
    
    Mako IC U701
    152
    
    ESD Protection Circuitry
    153
    
    Universal Connector (Side Connector) Interface Circuitry
    153
    
    Figure 4.5-2.Universal (Side) Connector
    154
    
    Figure 4.5-3.VOCON Connector J650
    154
    
    Table 4.5-1. Option Select Functions
    154
    
    The Option Board
    154
    
    Encryption Module
    156
    
    Table 4.5-2. Encryption Module Software Kits and Algorithms
    156
    
    Figure 4.5-4.VOCON Transmit Audio Path
    157
    
    System Clocks
    157
    
    Transmit Audio Path
    157
    
    Figure 4.5-5.VOCON Receive Audio Path
    158
    
    Receive Audio Path
    158
Chapter 5 Troubleshooting Procedures

159
Chapter 6.1 VHF Troubleshooting Charts

165
Chapter 7.1 VHF Troubleshooting Waveforms

285
- Introduction
  285
- List of Waveforms
  285
- Table 7.1-1. List of Waveforms
  285
- RF Test Points
  286
- Figure 7.1-1.RF Block Diagram Test Points
  286
- Table 7.1-2. RF Block Diagram Probe/Test Points
  287
- Main Circuit Board RF Shield Locations
  288
- Table 7.1-3. Main Circuit Board Side 1 RF Shields
  288
- Table 7.1-4. Main Circuit Board Side 2 RF Shields
  289
- PP1 Antenna Input
  290
- PP2 TX Signal at Harmonic Filter Input
  291
- PP3 Coupler RF out
  292
- PP4 TX Signal at PA
  293
- TP5 Coupler RF Feedback to PCIC
  294
- TP6 PCIC Control Voltage
  295
- Pp7 Tx lo
  296
- PP8 Higher Level Voltage Multiplier
  297
- PP9 Superfilter Output
  298
- PP11 Prescalar Input to Fracn Synthesizer
  299
- PP12 Reference Crystal Output
  300
- TP13 Mod in
  301
- TP14 1St lo Control Voltage
  302
- PP15 VCO Output
  303
- PP17 Frequency out (16.8 Mhz)
  304
- PP18 RX RF Input at Antenna Switch
  305
- PP19 Antenna Switch Bias
  306
- PP20 Preselector Tuning Voltage
  307
- PP22 Analog 5V
  308
- PP23 Preselector 1 Output
  309
- PP24 Low-Noise Amplifier Output
  310
- PP25 Preselector 2 Output
  311
- PP26 Mixer out (IF)
  312
- PP27 Crystal Filter out
  313
- PP28 Abacus Analog 3V
  314
- PP29 2Nd lo Control Voltage
  315
- PP30 2Nd lo VCO Buffer Output
  316
- PP31 Analog 5V DC
  317
- PP32 Abacus Digital 3V
  318
- TX Audio 1 Khz Tone
  331
- Mhz Buffer Input and Output
  331
- Khz Clock Outputs
  331
- SPI B Data
  331
- RX Serial Audio Port (SAP)
  331
- List of Waveforms
  331
- Table 7.2-1. List of Waveforms
  331
- RF Test Points
  332
- Figure 7.2-1.RF Block Diagram Test Points
  332
- Table 7.2-2. RF Block Diagram Probe/Test Points
  333
- Main Circuit Board RF Shield Locations
  334
- Table 7.2-3. Main Circuit Board Side 1 RF Shields
  334
- Table 7.2-4. Main Circuit Board Side 2 RF Shields
  335
- PP1 Antenna Input
  336
- PP2 TX Signal at Harmonic Filter Input
  337
- PP3 Coupler RF out
  338
- PP4 TX Signal at PA
  339
- TP5 Coupler RF Feedback to PCIC
  340
- TP6 PCIC Control Voltage
  341
- Pp7 Tx lo
  342
- TP14 1St lo Control Voltage
  348
- PP15 VCO Output
  349
- PP17 Frequency out (19.2 Mhz)
  351
- PP26 Mixer out (IF)
  359
- PP31 Analog 5V DC
  364
- PP32 Abacus Digital 3V
  365
- TX Audio 1 Khz Tone
  379
- Mhz Buffer Input and Output
  379
- Khz Clock Outputs
  379
- SPI B Data
  379
- RX Serial Audio Port (SAP)
  379
- Introduction
  379
- List of Waveforms
  379
- Table 7.3-1. List of Waveforms
  379
- RF Test Points
  380
- Figure 7.3-1.RF Block Diagram Test Points
  380
- Table 7.3-2. RF Block Diagram Probe/Test Points
  381
- Main Circuit Board RF Shield Locations
  382
- Table 7.3-3. Main Circuit Board Side 1 RF Shields
  382
- Table 7.3-4. Main Circuit Board Side 2 RF Shields
  383
- PP1 Antenna Input
  384
- PP2 TX Signal at Harmonic Filter Input
  385
- PP3 Coupler RF out
  386
- PP4 TX Signal at PA
  387
- TP5 Coupler RF Feedback to PCIC
  388
- Pp7 Tx lo
  390
- PP32 Abacus Digital 3V
  412
- TX Audio 1 Khz Tone
  425
- Mhz Buffer Input and Output
  425
- Khz Clock Outputs
  425
- SPI B Data
  425
- RX Serial Audio Port (SAP)
  425
- Introduction
  425
- List of Waveforms
  425
- Table 7.4-1. List of Waveforms
  425
- RF Test Points
  426
- Figure 7.4-1.RF Block Diagram Test Points
  426
- Table 7.4-2. RF Block Diagram Probe/Test Points
  427
- Main Circuit Board RF Shield Locations
  428
- Table 7.4-3. Main Circuit Board Side 1 RF Shields
  428
- Table 7.4-4. Main Circuit Board Side 2 RF Shields
  429
- PP1 Antenna Input
  430
- PP2 TX Signal at Harmonic Filter Input
  431
- PP3 Coupler RF out
  432
- PP4 TX Signal at PA
  433
- TP5 Coupler RF Feedback to PCIC
  434
- Pp7 Tx lo
  436
- Tp10 Trb
  439
- PP32 Abacus Digital 3V
  461
- TX Audio 1 Khz Tone
  475
- Mhz Buffer Input and Output
  475
- Khz Clock Outputs
  475
- SPI B Data
  475
- RX Serial Audio Port (SAP)
  475
- Introduction
  475
- List of Waveforms
  475
- Table 7.5-1. List of Waveforms
  475
- RF Test Points
  476
- Figure 7.5-1.RF Block Diagram Test Points
  476
- Table 7.5-2. RF Block Diagram Probe/Test Points
  477
- Main Circuit Board RF Shield Locations
  478
- Table 7.5-3. Main Circuit Board Side 1 RF Shields
  478
- Table 7.5-4. Main Circuit Board Side 2 RF Shields
  479
- PP1 Antenna Input
  480
- PP2 TX Signal at Harmonic Filter Input
  481
- PP3 Coupler RF out
  482
- PP4 TX Signal at PA
  483
- TP5 Coupler RF Feedback to PCIC
  484
- Pp7 Tx lo
  486
- Tp10 Trb
  489
  - SPI B Data
    515
  - PP33 SPI Data
    517
  - PP35 Universal Chip Select
    519
  - TP37 RX SSI Data
    521
  - TP39 RX SSI Frame Sync
    523
  - Introduction
    525
  - Tables
    525
  - Table 8.1-1. Main Board to Keypad Board Flex Assembly (J601)
    525
  - Table 8.1-2. Main Board to Universal (Side) Connector Flex Assembly (J650)
    527
  - Table 8.1-3. FLASH (U803) Pinout
    527
  - Table 8.1-4. SRAM (U804) Pinout
    530
  - Table 8.1-5. Patriot MCU/DSP (U800) Pinout
    531
  - Table 8.1-6. MAKO (U701) Pinout
    540
Chapter 8.2 UHF1 Troubleshooting Tables

547

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Motorola ASTRO XTS 2250 Basic Service Manual

Motorola ASTRO XTS 2250 Basic Service Manual (98 pages)

Brand: Motorola | Category: Portable Radio | Size: 14.03 MB

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