Spi Bus Waveform; Tx 1 Khz Tone Waveform - Motorola ASTRO Digital Spectra Service Manual
Uhf/vhf/800 mhz mobile radios
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Also See for ASTRO Digital Spectra:
- Service manual (176 pages) ,
- Instruction manual (114 pages) ,
- Parts list (13 pages)
Table of Contents
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6-10
SPI Bus Waveform
TX 1 kHz Tone Waveform
July 1, 2002
Troubleshooting Waveforms: ASTRO Spectra Digital Plus VOCON Board Waveforms
Radio Power Up
Trace 1 — U201 — 41 - Data
Trace 2 — U201 — 43 - Chip Select
Trace 3 — U201 — 42 - Clock
Transmitting
1 kHz tone at 85mVrms into microphone
Trace 1 — U402 — 17
68P81076C25-C
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Troubleshooting
