Teradyne Z1800 Series, Руководство оператора

Страница: 104 / 118

3-11
Z1800-Series Operator’s Guide
Testing Digital
Connectivity
Digital Tracer is a digital testing tool which allows you to test the connectivity of digital
component leads to the board-under-test via a hand held probe. Once Digital Tracer has
been enabled in the software, it stops a test when it locates a failing device and shows a
representation of the device on the screen.
During the tracer process, you orient the device if it is not oriented properly, probe the
component pins of the device (Initial Pass), and probe each tied pin individually (Second
Pass—optional).
At the end of the probing, pin graphics which remain the same color in the
monitor’sgraphic display show the location of opens. That information is sent to output
devices specified in the program.
For information on enabling Digital Tracer in the software, see the “Digital Tracer” section
in Chapter 9 “Test and Debug Tools” in the Z1800-Series Programmer’s Guidebook.
Important:
Digital Tracer is not available for the Z1805.
Digital Tracer Graphic Display
If the test detects a failure when Digital Tracer is enabled, a graphic display similar to the
following appears.
The Digital Tracer graphic display consists of the following elements.
• Pin contact indicator
•
IC graphic
• Message field
•
Legend
• Pin number indicator
C:/TPD/TSTTRCR - ICT
Files Edit Run Pgen Setup Utiility Templates GFI Convert
Pin contact
Indicator
[ ]—[ ]
START CANCEL SOF HLD RPT CRT
Tracer——cancel to terminate
High: 5.2500 Measure: 4.9713 Low: 4.7500 V Node: 1
Tracer -
Pin Check Utility
Please orient
device -
U15 - 741s241s
PASS
S/s
P/p
O/o
+/-
</>
D/d =
=
=
=
=
= start
package
orient
pin1
top
default
000
000
010 010
Pin Contact Indicator
IC Graphic
Legend
Pin Number
Indicator
Message Field