Motorola APX 3000

viii Table of Contents
4.5 Power-Up Self-Check Diagnostics and Repair (Not for Field Use)................................................ 4-5
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 Side Button Error ......................................................................................................................... 5-22
5.6 RX Audio Error............................................................................................................................. 5-23
5.7 TX Audio Error ............................................................................................................................. 5-24
5.8 Keyload Failure ............................................................................................................................ 5-25
5.9 Secure Hardware Failure ............................................................................................................. 5-26
5.10 RX RF Failure .............................................................................................................................. 5-27
5.11 FGU Failure ................................................................................................................................. 5-37
5.12 VCO Failure ................................................................................................................................. 5-38
5.13 GPS Failure ................................................................................................................................. 5-43
5.14 Bluetooth Failure – Pairing Issue ................................................................................................. 5-44
5.15 PA Failure .................................................................................................................................... 5-50
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
6.14 GPS ............................................................................................................................................. 6-35
6.15 Bluetooth Troubleshooting Waveforms........................................................................................ 6-38
6.16 Bluetooth Steady-State ................................................................................................................ 6-58
6.17 LF CW on Spectrum Analyzer ..................................................................................................... 6-63
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 Main Board Block: UHF1 (84012513001_A).................................................................................. 8-3
8.3 Main Board Block: 700–800 MHz (84012501002) ....................................................................... 8-61
8.4 Main Board Block: VHF (84012512001_A)................................................................................ 8-117
8.5 Main Board Block: UHF2 (84012616001) .................................................................................. 8-169