Chapter 6 Troubleshooting Waveforms; Introduction; Table 6-1. List Of Troubleshooting Waveforms - Motorola ASTRO XTL 1500 Detailed Service Manual

Chapter 6 Troubleshooting Waveforms

6.1

Introduction

This chapter contains images of waveforms that might be useful in verifying operation of certain parts
of the circuitry. These waveforms are for reference only; the actual data depicted will vary depending
upon the operating conditions.
Power-On Reset Timing
Power-On to Soft Turn-On Timing
Power-Down Reset
16.8 MHz Clock Waveform
32 kHz Clock Waveform
DSP SSI Port RX Mode
DSP SSI Port TX Mode CSQ
SPI Bus Waveform
SB9600 Waveform
SB9600 BUS+ and BUS- Waveforms
SB9600 BUS+ and RESET Waveforms
SB9600 BUSY and BUS- Waveforms
RS-232 RX Waveforms
RS-232 TX Waveforms
RS-232 RX/TX Waveforms
USB Waveforms
Serial Audio Port Waveforms
Secure Interface Waveforms
8 kHz Frame Sync Waveform
RX Audio Waveforms
TX Audio Waveforms
TX and RX 1 kHz Audio Path Sinewave and Chart

Table 6-1. List of Troubleshooting Waveforms

Waveform Page
6-2
6-2
6-3
6-3
6-4
6-4
6-5
6-5
6-6
6-6
6-7
6-7
6-8
6-8
6-9
6-9
6-10
6-10
6-11
6-11
6-12
6-12