Motorola Professional GP640 Información de servicio - Página 3

Navegue en línea o descargue pdf Información de servicio para Radio Motorola Professional GP640. Motorola Professional GP640 28 páginas. Professional radio, power distribution and controller
También para Motorola Professional GP640: Manual del usuario (32 páginas), Hoja de especificaciones (2 páginas), Información de servicio (32 páginas), Información de servicio (30 páginas), Información de servicio (26 páginas), Información de servicio (43 páginas), Información de servicio (30 páginas)

Chapter 1

1.0 GP640/GP680 Model Chart .................................................................................1-1

2.0 GP1280 Model Chart ...........................................................................................1-1

3.0 Technical Specifications ......................................................................................1-2

Chapter 2

1.0 Introduction ..........................................................................................................2-1

2.0 UHF2 Transmitter ................................................................................................2-1

2.1 Power Amplifier ..............................................................................................2-1

2.2 Antenna Switch...............................................................................................2-2

2.3 Harmonic Filter ...............................................................................................2-2

2.4 Antenna Matching Network ............................................................................2-2

2.5 Power Control Integrated Circuit (PCIC) ........................................................2-2

3.0 UHF2 Receiver ....................................................................................................2-3

3.1 Receiver Front-End ........................................................................................2-3

3.2 Receiver Back-End.........................................................................................2-4

3.3 Automatic Gain Control (AGC) .......................................................................2-5

4.0 Frequency Generation Circuit ..............................................................................2-6

4.1 Synthesizer.....................................................................................................2-7

4.2 Voltage Control Oscillator (VCO)....................................................................2-8

5.0 Voice Storage (GP1280 Only) ...........................................................................2-10

Chapter 3

3.0 Troubleshooting Flow Chart for Transmitter ........................................................3-3

4.0 Troubleshooting Flow Chart for Synthesizer........................................................3-4

5.0 Troubleshooting Flow Chart for VCO...................................................................3-5

Chapter 4

UHF2 PCB/SCHEMATICS/PARTS LISTS

1.0 Allocation of Schematics and Circuit Boards .......................................................4-1

1.1 Controller Circuits ...........................................................................................4-1

1.2 Voice Storage Facility.....................................................................................4-1

2.0 UHF2 PCB 8485641Z02 / Schematics ................................................................4-3

3.0 UHF2 PCB 8485641Z02 / PCB 8485677Z01 Parts List ...................................4-11

4.0 UHF2 PCB 8485677Z01 (GP1280) ...................................................................4-15

3.0 UHF2 PCB 8485677Z01 / PCB 8485641Z02 Parts List ..................................4-11

5.0 UHF2 PCB 8485677Z01 Voice Storage Parts List (GP1280)............................4-18

iii

Table of Contents