Motorola APX 2000 Detailed Service Manual

viii Table of Contents
Chapter 5 Troubleshooting Charts ..................................................... 5-1
5.1 List of Troubleshooting Charts ....................................................................................................... 5-1
5.2 Main Troubleshooting Flowchart.................................................................................................... 5-3
5.3 Power-Up Failure ........................................................................................................................... 5-4
5.4 DC Supply Failure........................................................................................................................ 5-15
5.5 Main Display Failure .................................................................................................................... 5-22
5.6 Volume/Channel Error ................................................................................................................. 5-23
5.7 Keypad Error................................................................................................................................ 5-24
5.8 Side Button Error ......................................................................................................................... 5-25
5.9 RX Audio Error............................................................................................................................. 5-26
5.10 TX Audio Error ............................................................................................................................. 5-28
5.11 RX RF Failure .............................................................................................................................. 5-30
5.12 FGU Failure ................................................................................................................................. 5-41
5.13 VCO Failure ................................................................................................................................. 5-42
5.14 PA Failure .................................................................................................................................... 5-45
Chapter 6 Troubleshooting Waveforms ............................................. 6-1
6.1 List of Waveforms .......................................................................................................................... 6-1
6.2 Clocks ............................................................................................................................................ 6-2
6.3 Audio SSI ....................................................................................................................................... 6-7
6.4 RX SSI ......................................................................................................................................... 6-11
6.5 TX SSI.......................................................................................................................................... 6-14
6.6 SPI ............................................................................................................................................... 6-17
6.7 I2C BUS ....................................................................................................................................... 6-19
6.8 One Wire...................................................................................................................................... 6-22
6.9 GCAI ............................................................................................................................................ 6-23
6.10 USB.............................................................................................................................................. 6-25
6.11 SDRAM ........................................................................................................................................ 6-27
6.12 FLASH CONTROL....................................................................................................................... 6-29
6.13 Receive Baseband Signals .......................................................................................................... 6-34
Chapter 7 Troubleshooting Tables ..................................................... 7-1
7.1 List of Board and IC Signals .......................................................................................................... 7-1
Chapter 8 Schematics, Boards Overlays, and Parts Lists................ 8-1
8.1 List of Transceiver Schematics and Board Overlays ..................................................................... 8-1
8.2 Transceiver (RF) Boards: VHF (84012312001) ........................................................................... 8-29
8.3 Transceiver (RF) Boards: UHF1 (84012313001)......................................................................... 8-90
8.4 Transceiver (RF) Boards: UHF2 (84012313001)....................................................................... 8-137
8.5 Transceiver (RF) Boards: 700 – 800 MHz (84012266001)........................................................ 8-179
8.6 Keypad Board M1.5 (84012686002).......................................................................................... 8-225
8.7 Keypad Board M2 and M3 (PC000261A01) .............................................................................. 8-229

Motorola APX 2000 Specifications

General

IP Rating	IP67
Operating Temperature	-30°C to +60°C
GPS	Optional
Bluetooth	No
Frequency Range	700/800 MHz
Power Output	1-5 W (VHF), 1-3 W (700/800 MHz)
Channels	Up to 1, 000
Battery Life	Up to 10 hours (digital)
Digital Protocol	APCO P25
Frequency	VHF: 136-174 MHz, UHF: 380-470 MHz, 700/800 MHz: 764-870 MHz
Power	1-3W (700/800 MHz), 1-5W (VHF)