Motorola ASTRO SPECTRA Service Manual

Table of Contents vii
6881076C20-E February 3, 2003
8.2.8.1 Low-/Mid-Power Radio .......................................................................................... 8-13
8.2.8.2 High-Power Radio.................................................................................................. 8-13
8.2.9 VCO Board ..................................................................................................................... 8-14
8.2.9.1 Low-/Mid-Power Radio .......................................................................................... 8-14
8.2.9.2 High-Power Radio.................................................................................................. 8-15
8.2.10 RF Board ........................................................................................................................ 8-15
8.2.10.1 Low-/Mid-Power Radio .......................................................................................... 8-15
8.2.10.2 High-Power Radio.................................................................................................. 8-16
8.3 Final Reassembly ........................................................................................................................ 8-16
8.3.1 Power Amplifiers............................................................................................................. 8-16
8.3.2 Command Board............................................................................................................. 8-17
8.3.3 Dash Control Head Board............................................................................................... 8-17
8.3.4 Model W3 Hand-Held Control Head ............................................................................... 8-17
8.4 Fastener Torque Chart ................................................................................................................ 8-18
Chapter 9 Basic Troubleshooting ....................................................... 9-1
9.1 Introduction.................................................................................................................................... 9-1
9.2 Replacement Board Procedures.................................................................................................... 9-1
9.3 Power-Up Error Codes .................................................................................................................. 9-1
9.3.1 ASTRO Digital Spectra..................................................................................................... 9-2
9.3.2 ASTRO Digital Spectra Plus............................................................................................. 9-3
9.4 Operational Error Codes................................................................................................................ 9-4
9.4.1 ASTRO Digital Spectra..................................................................................................... 9-4
9.4.2 ASTRO Digital Spectra Plus............................................................................................. 9-5
9.5 Transmitter Troubleshooting.......................................................................................................... 9-5
9.6 Receiver Troubleshooting.............................................................................................................. 9-9
9.7 Synthesizer Troubleshooting ....................................................................................................... 9-12
Chapter 10 Functional Block Diagrams and Connectors ................. 10-1
10.1 Digital Spectra Functional Block Diagram (Models W3, W4, W5, W7, and W9) ......................... 10-2
10.2 Digital Spectra Plus Functional Block Diagram (Models W3, W4, W5, W7, and W9) ................. 10-3
10.3 Radio Connectors........................................................................................................................ 10-4
10.4 Radio Connector Locations ......................................................................................................... 10-5
10.5 Radio Connector Locations (cont.) .............................................................................................. 10-5
10.6 Extender Cable (P501) ................................................................................................................ 10-6
10.7 Control Head Cabling Diagram.................................................................................................... 10-6
Chapter 11 Exploded Views and Parts Lists...................................... 11-1
11.1 Model W3 Hand-Held Control Head Exploded View ................................................................... 11-2
11.2 Model W4 Rotary Control Head Exploded View.......................................................................... 11-3
11.3 Models W5 and W7 Pushbutton Control Head Exploded View ................................................... 11-4
11.4 Model W9 Pushbutton Control Head Exploded View .................................................................. 11-5
11.5 Low-Power (15W) Radio Exploded View..................................................................................... 11-6
11.6 Mid-Power (20-40/25-50/35W) Radio Exploded View ................................................................. 11-7
11.7 High-Power (50-110W) Radio Exploded View............................................................................. 11-8
11.8 Motorcycle Interconnect Board and Assembly ............................................................................ 11-9
11.9 Low- and Mid-Power Interconnect Board and Assembly............................................................. 11-9
11.10 Small Pushbutton Parts ............................................................................................................. 11-10

Motorola ASTRO SPECTRA Specifications

General

Frequency Range	136-174 MHz, 403-470 MHz
Number of Channels	Up to 255
Channel Spacing	12.5 kHz, 20 kHz, 25 kHz
Modulation	FM
Operating Temperature	-22°F to +140°F (-30°C to +60°C)