Troubleshooting

Introduction

Figure 6-3: Troubleshooting Guide - TTL Inputs

Start

Power Up meter

POST

No

Pass?

Yes

Investigate Power

Meter Failure

Connect Sensor to Channel A

Connect Sensor to Channel B (if applicable)

Any Sensor

Errors?Yes

No

Select

System/Inputs

More

Service

Self Test

Instrument Self Test

Yes

 

Self Test

 

Errors?

 

 

 

 

 

 

 

 

 

 

 

No

Select

Done

Zero/Cal

More

TTL Inputs On

Apply TTL logic 0 pulse to RJ45 connector pin 5

 

Investigate

wrt pin 8. Apply TTL logic 1 pulse to RJ45 connector

 

 

Sensor Failure

pin 6 wrt pin 8. See User’s Guide Ch. 2 for timing.

 

 

 

 

 

 

 

 

 

 

 

 

 

A

End

Agilent E4418B/E4419B Service Guide

6-7

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Image 115
Agilent Technologies e4419b, e4418b manual Troubleshooting Guide TTL Inputs