Symmetricom 58502A Introduction, Determining 58502A Fault Status

Chapter 6 Service

Introduction

Introduction

This chapter provides the information required to determine if the 58502A Broadband Distribution Amplifier is faulty.

Determining 58502A Fault Status

Use the following procedure to determine fault status of the 58502A Distribution Amplifier.

1Perform the Power-on Self test as described in Chapter 1, “Getting Started,” of this guide.

If self test passes, go to step 2. If the test fails, go to step 5.

2Verify RS-232 serial-port setup and operation as described in Chapter 1, “Getting Started,” of this guide.

If the test passes, go to step 3. If the test fails, go to step 5.

3Verify the Alarm/Status output operation as described in the “ALARM/STATUS Verification” subsection in Chapter 2, “Performance Test.”

If pass, go to step 4.

If the test fails twice, go to step 5.

4If steps 1 through 3 pass successfully, performance the procedures in the section titled “58502A Performance Tests” in Chapter 2, “Performance Test,” of this guide.

If the performance tests pass, Re-check all system input signals and output loads connected to the 58502A and troubleshoot them as required.

If performance tests fail, go to step 5.

5If any combination of steps 1 through 4 fail, return the instrument for service.

6-2 User’s Guide