Teradyne Z1800 Series, Руководство оператора

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3-16 OPERATING THE TESTER
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Top—Increase or Decrease Pins
To decrease the number of pins on the top and bottom of a Quad device and redistribute
the pins to the sides, press the < key. To increase the number of pins on the top and
bottom of a Quad device and redistribute the pins to the sides, press the > key.
•
Default
Press the D key to cause the graphics to revert to the default, that is, to the package and
orientation specified by the global setting or worksheet description entry.
If you are using a valid C.1 compatible tracer.def file, the default key steps you through
each tracer.def entry with the same number of pins as the current device. However, the
worksheet description field entries override the C.1 tracer.def entries.
For more information about tracer.def, see the “Digital Tracer” section in Chapter 11
“Test and Debug Tools” in the Z1800-Series Programmer’s Guidebook.
Probing the Component Pins
After you have oriented the component device or pressed
the Start button, a message like the one below appears at the bottom of the screen,
prompting you to probe the component pins.
"Tracer -
Pin Check Utility
Please probe all
device leads on
<ID> - <NAME>"
Brush the probe across the pins.
Important: During the initial pass, contact is accepted when the Nodefinder probe touches a pin.
Digital Tracer displays the probing progress graphically on the computer monitor. As each
pin passes the test, the pin graphic changes color on a color monitor. If a graphic element
represents multiple pins, the graphic won't change until you contact all the pins
represented.
You can press Cancel to stop Digital Tracer.
After probing the component pins, press Start to continue to the Second Pass if the Second
Pass option is enabled, or press Cancel to stop Digital Tracer.
Important: You must press Cancel twice to exit the program: once to cancel Digital Tracer, and a
second time to cancel the program.
When Tracer has finished, due to you pressing either Start or Cancel, press Start to continue
testing or press Cancel to abort the program.
Standard
Location (Default)
of Pin 1 in Quad
Pin 1 Offset = 0
in Quad
Pin 1 Offset = 1
In Quad
Standard Corner