Chapter 9 Basic Troubleshooting; Introduction; Replacement Board Procedures; Power-Up Error Codes - Motorola ASTRO SPECTRA Service Manual

Chapter 9 Basic Troubleshooting

9.1

Introduction

This section of the manual contains troubleshooting charts, error codes, a functional block diagram,
interconnect diagrams, and flexible circuit information. This section can help you isolate a problem to
the board level. Board-level troubleshooting does not attempt to isolate problems to the component
level. Component-level service information can be found in the ASTRO Digital Spectra and Digital
Spectra Plus Mobile Radios Detailed Service Manual. (Refer to the "Related Publications" section of
this manual on page xii for the specific manual number.)
NOTE: To access the various connector pins, use the housing eliminator/test fixture along with the
diagrams found in this section of the manual. (Refer to the section, "Service Aids and
Recommended Tools," on
numbers.)
9.2

Replacement Board Procedures

Once a problem has been isolated to a specific board, use one of the following recommended repair
procedures:
• Install a good board from your inventory into the radio.
• Order a replacement board from Customer Care and Services Division at 1-800-422-4210.
• Troubleshoot the defective board using the ASTRO Digital Spectra and Digital Spectra Plus
Mobile Radios Detailed Service Manual. (Refer to the "Related Publications" section of this
manual on page xii for the specific manual number.)
9.3

Power-Up Error Codes

When the radio is turned on (power-up), the radio performs cursory tests to determine if its basic
electronics and software are in working order. Problems detected during these tests are presented
as error codes on the radio's display. The presence of an error should prompt the user that a
problem exists and that a service technician should be contacted.
Self-test errors are classified as either fatal or non-fatal. Fatal errors inhibit user operation; non-fatal
errors do not. Use the following tables to aid in understanding particular power-up error code
displays.
page 4-2 for the appropriate Motorola service aids and tools parts