Service manual
Table Of Contents
- ul-68P81076C25-C_AT_DS_ASPlus-Part1_astro_d.pdf
- ASTRO Digital Spectra and Spectra Plus UHF/VHF/800 MHz Mobile Radios Detailed Service Manual
- File 1 (Front cover to pg. 6-14)
- Foreword
- Table of Contents
- List of Figures
- List of Tables
- Related Publications
- Commercial Warranty
- Model Numbering, Charts, and Specifications
- Mobile Radio Model Numbering Scheme
- ASTRO Digital Spectra Motorcycle 15 Watt (Ranges 1 and 2) Model Chart
- ASTRO Digital Spectra Motorcycle 15 Watt (Ranges 3 and 3.5) Model Chart
- ASTRO Digital Spectra VHF 10–25 Watt Model Chart
- ASTRO Digital Spectra VHF 10–25 and 50–110 Watt Model Chart
- ASTRO Digital Spectra VHF 10–25 and 50–110 Watt Model Chart (cont.)
- ASTRO Digital Spectra UHF 10–25 Watt Model Chart
- ASTRO Digital Spectra UHF 20–40 Watt Model Chart
- ASTRO Digital Spectra UHF 20–40 Watt Model Chart (cont.)
- ASTRO Digital Spectra UHF 50–110 Watt Model Chart
- ASTRO Digital Spectra UHF 50–110 Watt Model Chart (cont.)
- ASTRO Digital Spectra 800 MHz Model Chart
- ASTRO Digital Spectra Plus VHF 25–50 and 50–110 Watt Model Chart
- ASTRO Digital Spectra Plus VHF 25–50 and 50–110 Watt Model Chart (cont.)
- ASTRO Digital Spectra Plus 800 MHz Model Chart
- ASTRO Digital Spectra Plus 800 MHz Model Chart (cont.)
- VHF Radio Specifications
- UHF Radio Specifications
- 800 MHz Radio Specifications
- Chapter 1 Introduction
- Chapter 2 General Overview
- 2.1 Introduction
- 2.2 Analog Mode of Operation
- 2.3 ASTRO Mode of Operation
- 2.4 Control Head Assembly
- 2.4.1 Display (W3 Model)
- 2.4.2 Display (W4, W5, and W7 Models)
- 2.4.3 Display (W9 Model)
- 2.4.4 Vacuum Fluorescent Display Driver
- 2.4.5 Vacuum Fluorescent Voltage Source (W9 Model)
- 2.4.6 Controls and Indicators
- 2.4.7 Status LEDs
- 2.4.8 Backlight LEDs
- 2.4.9 Vehicle Interface Ports
- 2.4.10 Power Supplies
- 2.4.11 Ignition Sense Circuits
- 2.5 Power Amplifier
- 2.6 Front-End Receiver Assembly
- 2.7 RF Board Basic
- 2.8 Voltage-Controlled Oscillator
- 2.9 Command Board
- 2.10 ASTRO Spectra Vocoder/Controller Board
- 2.11 Radio Power
- Chapter 3 Theory of Operation
- 3.1 RF Board
- 3.2 Command Board
- 3.2.1 Microcontroller and Support ICs
- 3.2.2 Serial Input/Output IC
- 3.2.3 Power-Up/-Down Sequence
- 3.2.4 Regulators
- 3.2.5 Reset Circuits
- 3.2.6 Serial Communications on the External Bus
- 3.2.7 Synchronous Serial Bus (MOSI)
- 3.2.8 Received Audio
- 3.2.9 Microphone Audio
- 3.2.10 Transmit Deviation
- 3.2.11 RS-232 Line Driver
- 3.2.12 Flash Programming
- 3.2.13 Encryption Voltages
- 3.2.14 Regulator and Power-Control IC
- 3.3 ASTRO Spectra VOCON Board
- 3.3.1 General
- 3.3.2 Controller Section
- 3.3.3 Vocoder Section
- 3.3.4 RX Signal Path
- 3.3.5 TX Signal Path
- 3.3.6 Controller Bootstrap and Asynchronous Buses
- 3.3.7 Vocoder Bootstrap
- 3.3.8 Serial Peripheral Interface (SPI) Bus
- 3.3.9 Controller Memory Map
- 3.3.10 Vocoder Memory Map
- 3.3.11 MCU System Clock
- 3.3.12 DSP System Clock
- 3.3.13 Radio Power-Up/Power-Down Sequence
- 3.3.14 VOCON BOARD Signals
- 3.4 ASTRO Spectra Plus VOCON Board
- 3.4.1 General
- 3.4.2 ASTRO Spectra Plus Controller Section
- 3.4.3 ASTRO Spectra Plus Vocoder Section
- 3.4.4 ASTRO Spectra Plus RX Signal Path
- 3.4.5 ASTRO Spectra Plus TX Signal Path
- 3.4.6 ASTRO Spectra Plus Controller Bootstrap and Asynchronous Busses
- 3.4.7 ASTRO Spectra Plus Serial Peripheral Interface Bus
- 3.4.8 ASTRO Spectra Plus MCU and DSP System Clocks
- 3.4.9 ASTRO Spectra Plus Voltage Regulators
- 3.4.10 ASTRO Spectra Plus Radio Power-Up/Power-Down Sequence
- 3.5 Voltage Control Oscillator
- 3.6 Receiver Front-End
- 3.7 Power Amplifiers
- Chapter 4 Troubleshooting Procedures
- 4.1 ASTRO Spectra Procedures
- 4.2 ASTRO Spectra Plus Procedures
- 4.3 VCO Procedures
- 4.4 Receiver Front-End (RXFE)
- 4.5 Power Amplifier Procedures
- Chapter 5 Troubleshooting Charts
- Chapter 6 Troubleshooting Waveforms
- File 2 (pgs. 7-1 to 7-25)
- File 3 (pgs. 7-26 to 7-48)
- File 4 (pg. 7-49 to back cover)
- File 1 (Front cover to pg. 6-14)
- ASTRO Digital Spectra and Spectra Plus UHF/VHF/800 MHz Mobile Radios Detailed Service Manual
- ul-68P81076C25-C_AT_DS_ASPlus-Part2_astro_d
- ASTRO Digital Spectra and Spectra Plus UHF/VHF/800 MHz Mobile Radios Detailed Service Manual
- File 1 (Front cover to pg. 6-14)
- File 2 (pgs. 7-1 to 7-25)
- Chapter 7 Schematics, Component Location Diagrams, and Parts Lists
- 7.1 RF Section
- Table 7-1: J500 Command Board to RF Board Interconnect Board
- Table 7-2: P502 Command Board to Control Head Interconnect Board
- Table 7-2: P502 Command Board to Control Head Interconnect Board
- Table 7-3: P503 Command Board to RF Power Amplifier Board
- Table 7-4: Configuring Command Board Jumpers for Non-RS232 Operation
- Table 7-5: J501 Command Board to VOCON Board
- Table 7-5: J501 Command Board to VOCON Board
- Table 7-6: J801 VOCON Board to Encryption Board
- Table 7-6: J801 VOCON Board to Encryption Board
- Table 7-7: J601 RF Board to VCO Board
- ASTRO Spectra Radio Interconnection
- HRN4009B/HRN6014A VHF RF Board; HRN4010B/HRN6020A UHF RF Board; and HRN6019A 800 MHz RF Board Schematic
- HRN4009B/HRN6014A VHF RF Board, HRN4010B/HRN6020A UHF RF Board, and HRN6019A 800 MHz RF Board Component Location Diagrams
- HRN4009B, HRN6014A VHF RF Board HRN4010B, HRN6020A UHF RF Board HRN6019A 800 MHz RF Board Electrical Parts List
- HRN4009C/HRN6014C VHF RF Board Schematic Diagram
- HRN4009C/HRN6014C VHF RF Board Component Location Diagrams
- HRN4009C/HRN6014C VHF RF Board Electrical Parts List
- HRN4009E and HRN6014D VHF RF Board; HRN4010D and HRN6020C UHF RF Board; and HRN6019C 800 MHz RF Board Schematic Diagram (Sheet 1 of 2)
- HRN4009E and HRN6014D VHF RF Board; HRN4010D and HRN6020C UHF RF Board; and HRN6019C 800 MHz RF Board Schematic Diagram (Sheet 2 of 2)
- HRN4009E and HRN6014D VHF RF Board; HRN4010D and HRN6020C UHF RF Board; and HRN6019C 800 MHz RF Component Location Diagram
- HRN4009E and HRN6014D VHF RF Board, HRN6010D and HRN6020C UHF RF Board, and HRN6019C 800 MHz RF Board Parts Lists
- 7.2 Command Board Section
- HLN5558E/F/G, HLN6529C/D/E/F/G, HLN6560C/D/E/F/G/H and HLN6562C/D/E/F/G/H Command Board Schematic Diagram
- HLN5558E/F/G, HLN6529C/D/E, HLN6560C/D/E/F/G/H, and HLN6562C/D/E/F/G/H Command Board Component Location Diagrams
- Command Boards Reference Designator and Part Number Comparison Chart
- HLN5558E/F/G, HLN6529C/D/E, HLN6560C/D/E/F/G/H, and HLN6562C/D/E/F/G/H Parts List
- HLN5558H/J, HLN6529H, HLN6560J and HLN6562J Command Board Schematic Diagram
- HLN5558H/J, HLN6529H, HLN6560J and HLN6562J Component Location Diagram
- Command Boards Reference Designator and Part Number Comparison Chart
- HLN5558H/J, HLN6529H, HLN6560J and HLN6562J Parts List
- 7.1 RF Section
- Chapter 7 Schematics, Component Location Diagrams, and Parts Lists
- File 3 (pgs. 7-26 to 7-48)
- File 4 (pg. 7-48 to back cover)
- ASTRO Digital Spectra and Spectra Plus UHF/VHF/800 MHz Mobile Radios Detailed Service Manual
- ul-68P81076C25-C_AT_DS_ASPlus-Part3_astro_d
- ASTRO Digital Spectra and Spectra Plus UHF/VHF/800 MHz Mobile Radios Detailed Service Manual
- File 1 (Front cover to pg. 6-14)
- File 2 (pgs. 7-1 to 7-25)
- File 3 (pgs. 7-26 to 7-48)
- 7.3 VOCON Section
- HLN6458D VOCON Board Schematic (Sheet 1 of 2)
- HLN6458D VOCON Board Component Location Diagrams (Sheet 1 of 2)
- HLN6458D VOCON Board Component Location Diagrams (Sheet 2 of 2)
- HLN6458D VOCON Board Parts List
- HLN6458E VOCON Board Schematic (Sheet 1 of 2)
- HLN6458E VOCON Board Schematic (Sheet 2 of 2)
- HLN6458E VOCON Board Component Location Diagrams (Sheet 1 of 2)
- HLN6458E VOCON Board Component Location Diagrams (Sheet 2 of 2)
- HLN6458E VOCON Board Electrical Parts List
- HLN6458F/G VOCON Board Schematic (Sheet 1 of 2)
- HLN6458F/G VOCON Board Schematic (Sheet 2 of 2)
- HLN6458F/G VOCON Board Component Location Diagrams (Sheet 1 of 2)
- HLN6458F/G VOCON Board Component Location Diagrams (Sheet 2 of 2)
- HLN6458F/G VOCON Board Parts List
- HLN6458H VOCON Board Schematic (Sheet 1 of 2)
- HLN6458H VOCON Board Schematic (Sheet 2 of 2)
- HLN6458H VOCON Board Component Location Diagrams
- HLN6458H VOCON Board Electrical Parts List
- 7.3 VOCON Section
- File 4 (pg. 7-48 to back cover)
- ASTRO Digital Spectra and Spectra Plus UHF/VHF/800 MHz Mobile Radios Detailed Service Manual
- ul-68P81076C25-C_AT_DS_ASPlus-Part4_astro_d
- ASTRO Digital Spectra and Spectra Plus UHF/VHF/800 MHz Mobile Radios Detailed Service Manual
- File 1 (Front cover to pg. 6-14)
- File 2 (pgs. 7-1 to 7-25)
- File 3 (pgs. 7-26 to 7-48)
- File 4 (pg. 7-49 to back cover)
- Chapter 7: Schematics, Component Location Diagrams, and Parts Lists: ASTRO Spectra Plus VOCON Section
- 7.4 ASTRO Spectra Plus VOCON Section
- ASTRO Spectra Plus Top Level Schematic (Sheet 1 of 2)
- ASTRO Spectra Plus Top Level Schematic (Sheet 2 of 2)
- ASTRO Spectra Plus RF Interface Schematic (Sheet 1 of 2)
- ASTRO Spectra Plus RF Interface Schematic (Sheet 2 of 2)
- ASTRO Spectra Plus Digital/USB Schematic (Sheet 1 of 2)
- ASTRO Spectra Plus Digital/USB Schematic (Sheet 2 of 2)
- ASTRO Spectra Plus Audio/DC Schematic
- ASTRO Spectra Plus Voltage Conversion Schematic
- ASTRO Spectra Plus Secure Interface Schematic
- ASTRO Spectra Plus VOCON Component Location Diagram, Top View
- ASTRO Spectra Plus VOCON Component Location Diagram, Bottom View
- HLN6837A ASTRO Spectra Plus VOCON Electrical Parts List
- 7.5 VCO Section
- HLD6061D and HLD6062D VHF VCO Hybrid Schematic
- HLD6061D and HLD6062D VHF VCO Hybrid Component Location Diagram
- HLD6061D and HLD6062D Parts List
- HLD4342B and HLD4343B VHF VCO Carrier Schematic Diagram
- HLD4342D and HLD4343D VHF VCO Carrier Schematic Diagram
- HLD4342B/HLD4343B VHF VCO Carrier Component Location Diagram
- HLD4342D/HLD4343D VHF VCO Carrier Component Location Diagram
- HLD4342B and HLD4343B VHF VCO Parts List
- HLD4342D and HLD4343D VHF VCO Parts List
- UHF VCO Ranges 1, 2, 3, and 4 Hybrid Schematic
- HLE6101A UHF VCO Range 1 Hybrid and HLE6102A Range 2 Hybrid Component Location Diagram
- HLE6101A UHF VCO Range 1 Hybrid and HLE6102A UHF VCO Range 2 Hybrid Parts List
- HLE6103B UHF VCO Range 3 Hybrid and HLE6104B Range 4 Hybrid Component Location Diagram
- HLE6103B UHF VCO Range 3 Hybrid and HLE6104B UHF VCO Range 4 Hybrid Parts List
- UHF VCO Ranges 1, 2, 3, and 4 Schematic Diagram
- HLE6045B Range 1 and HLE6046B Range 2 UHF VCO Component Location Diagram
- HLE6000D Range 3 and HLE6041D Range 4 UHF VCO Component Location Diagrams
- HLE6000D and HLE6041D UHF VCO Parts List
- HLF6080B 800 MHz VCO Schematic Diagram
- HLF6080B 800 MHz VCO Component Location Diagram
- HLF6080B 800 MHz VCO Parts List
- 7.6 RX Front-End Section
- HRD6001E/6002E/6011E/6012E VHF Receiver Front-End Schematic
- HRD6001E/6002E/6011E/6012E VHF Component Location Diagram
- HRD6001E VHF RXFE Parts List
- HRD6002E Parts List
- HRD6011E Parts List
- HRD6012E Parts List
- HRD6001G/6002G/6011G/6012G VHF Receiver Front-End Schematic
- HRD6001G/6002G/6011G/6012G VHF Receiver Front-End Component Location Diagram
- HRD6001G/HRD6002G/HRD6011G/HRD6012G VHF RXFE Parts List
- HRE6001B/6002C/6003B/6004B/6011B/6012B/6014B UHF Receiver Front-End Preamp and Standard Schematics
- HRE6001B/6002C/6003B/6004B/6011B/6012B/6014B UHF Receiver Front-End Hybrid Component Location Diagram
- HRE6011B UHF RXFE Pre-Amp Parts List
- HRE6012B UHF RXFE Pre-Amp Parts List
- HRE6014B UHF RXFE Pre-Amp Parts List
- HRE6001B and HRE6002C UHF RXFE Standard Parts List
- HRE6003B and HRE6004B UHF RXFE Standard Parts List
- HRF6004B/C 800 MHz Receiver Front-End Schematic Diagram
- HRF6004B/C 800 MHz Receiver Front-End Component Location Diagram
- HRF6004B/C 800 MHz RXFE Parts List
- 7.7 Power Amplifier Section
- HLD6022C VHF 50 Watt PA Schematic
- HLD6022C VHF 50-Watt PA Component Location Diagram, Side 1
- HLD6022C VHF 50-Watt PA Component Location Diagram, Side 2
- HLD6022C VHF 50-Watt PA Parts List
- HLD6064C VHF 100-Watt PA Schematic
- HLD6064C VHF 100-Watt PA Component Location Diagram, Side 1
- HLD6064C VHF 100-Watt PA Component Location Diagram, Side 2
- HLD6064C VHF R1 100-Watt PA Parts List
- HLD6032B/HLD6066B VHF 25-Watt PA Schematic
- HLD6032B/HLD6066B VHF 25-Watt PA Component Location Diagram, Side 1
- HLD6032B/HLD6066B VHF 25-Watt PA Component Location Diagram, Side 2
- HLD6032B VHF R2 25-Watt PA Parts List
- HLD6066B VHF R1 25-Watt PA Parts List
- HLE6062B and HLE6071B UHF 25-Watt PA Schematic
- HLE6062B UHF 25-Watt PA Component Location Diagram, Side 1
- HLE6062B UHF 25-Watt PA Component Location Diagram, Side 2
- HLE6062B VHF R2 25-Watt PA Parts List
- HLE6043C, HLE6044C, and HLE6049B UHF 40-Watt PA Schematic
- HLE6043C, HLE6044C, and HLE6049B UHF 40-Watt PA Component Location Diagram, Side 1
- HLE6043C, HLE6044C, and HLE6049B UHF 40-Watt PA Component Location Diagram, Side 2
- HLE6043C UHF R3 40-Watt Parts List
- HLE6044C UHF R4 40-Watt PA Parts List
- HLE6049B UHF R1 40-Watt PA Parts List
- HLE6039C, HLE6040C, and HLE6051C UHF 100-Watt PA Schematic
- HLE6039C, HLE6040C, and HLE6051C UHF 100-Watt PA Component Location Diagram, Side 1
- HLE6039C, HLE6040C, and HLE6051C UHF 100-Watt PA Component Location Diagram, Side 2
- HLE6039C UHF R3 100-Watt PA Parts List
- HLE6040C UHF R4 100-Watt PA Parts List
- HLE6051 UHF R1 100-Watt PA Parts List
- HLF6078B 800 MHz 15-Watt PA Schematic
- HLF6078B 800 MHz 15-Watt PA Component Location Diagram, Side 1
- HLF6078B 800 MHz 15-Watt PA Component Location Diagram, Side 2
- HLF6078C 800MHz 15-Watt PA Parts List
- HLF6077D 800 MHz 35-Watt PA Schematic
- HLF6077D 800 MHz 35-Watt PA Component Location Diagram, Side 1
- HLF6077D 800 MHz 35-Watt PA Component Location Diagram, Side 2
- HLF6077D 800MHz 35-Watt PA Parts List
- 7.4 ASTRO Spectra Plus VOCON Section
- Appendix A Secure Modules
- Appendix B Replacement Parts Ordering
- Glossary
- Back cover
- Chapter 7: Schematics, Component Location Diagrams, and Parts Lists: ASTRO Spectra Plus VOCON Section
- ASTRO Digital Spectra and Spectra Plus UHF/VHF/800 MHz Mobile Radios Detailed Service Manual
July 1, 2002 68P81076C25-C
3-10 Theory of Operation: Command Board
3.2.4 Regulators
The regulator circuits include an unswitched +5 V (UNSW5V) discrete circuit, and the regulator/
power-control IC (RPCIC) that produces switched +5 V (U500, pin 14) and 9.6 V (U500, pin 17). The
UNSW+5-V source is used by the RPCIC as a reference (U500, pin 20) for its switched + 5-V
source. This regulated voltage is produced from the A+ voltage and is present when the battery is
connected. The regulators within the RPCIC are controlled by the input to pin 24 via a digital
transistor, Q538. This device is controlled from an output (9.6/5-V enable) of the SIOIC (U522, pin
15).
The various voltages used by the ICs on the command board are shown in Table 3-1.
3.2.5 Reset Circuits
The reset circuits consist of the power-on reset (POR), high-/low- battery voltage reset, and the
external bus system reset. The reset circuits allow the microcontroller to recover from an unstable
condition, such as no battery on the radio, battery voltage too high or too low, and remote devices on
the external bus not communicating.
When the battery (A+) is first applied to the radio, the unregulated voltage source powers the
unswitched +5-V regulator and the SIOIC internal regulator. The voltage is also sent to the control
head, where it is switched on/off by a series FET transistor. The transistor returns the voltage to the
command board, via connector P502-31, as switched B+. The switched B+ voltage is sensed by the
SIOIC on pin 28, and changes the state of the 9.6-V enable output gate (RPCIC_EN*) to an active
“low.” The low state turns on the 9.6-V regulator (U500-24), and its regulated output is fed back to the
input of the voltage comparator on the SIOIC (U522-14). The comparator output switches to a logic
low upon exceeding the 5.6-V threshold (see Figure 3-5).
Table 3-1. Integrated Circuits Voltages
Integrated Circuit UNSW5V SW +5V SW +9.6V
Serial Input/ Output (SIOIC)
U522-6, -24 U522-3, -12 U522-14
Regulator/ Power Control
(RPCIC)
U500-20 U500-14 U500-17
Digital/ Analog IC (DAIC)
U502-1, -28
Analog Switch
U523-16, U524-14
RS232 Driver (IC)
U526-19
555 Timer (IC)
U501-8
8-Bit Shift Register
U530-16
Differential Amplifiers
U401-4, U402-4