User's Manual

9-2 68P81093C75-A
Many of the troubleshooting procedures require the use of the
Motorola-supplied Radio Service Software (RSS) since the PDR
3500 is computer-controlled, employing state-of-the-art signal
processing. The RSS operates on a PC (or compatible), with RS-232
communication port capability. The RSS allows the technician to
access alarm logs, run diagnostics, and set up the equipment for
various audio and RF tests. Complete details on the operation of the
RSS are provided in the RSS User’s Guide (manual number
68P81085E35).
Troubleshooting
Overview
Introduction Two procedures are provided for troubleshooting the PDR 3500 and
ancillary equipment. Each procedure is designed to quickly identify
faulty modules, and replace them with known working modules.
Procedure 1: Routine
Maintenance Functional
Checkout
Procedure 1 is a series of non-intrusive tests, performed during a
routine maintenance. The technician verifies proper station
operation. An overview of the procedure is shown in the flowchart
(Figure 3).
Procedure 2:
Troubleshooting A
Reported/Suspected
Problem
Procedure 2 should be used when an equipment problem has been
either reported or is suspected. The procedure includes tests that
allow the technician to troubleshoot reported or suspected
equipment malfunctions. An overview of the procedure is shown in
the flow chart (Figure 4).
How to Use These
Troubleshooting
Procedures
Perform the following basic steps in order to efficiently troubleshoot
the PDR 3500 equipment.
Step 1. Select the appropriate troubleshooting procedure flow
chart (Procedure 1 or Procedure 2).
Step 2. Perform the selected flow chart tasks. Tasks requiring
additional explanation are marked with page
references.
• Locate the additional information
• Perform the tasks (if any)
• Return to the flow chart
Step 3. Once the faulty module has been identified, proceed to
Module Replacement Procedures , beginning on
page 9-25.