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3980xpi Users Manual - Data I/O Corporation

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Figure A-2. Removing the Top Cover Screws<br />

SCREWS<br />

Figure A-3. Waveform Board<br />

Performance Verification<br />

9. Locate the 78-pin connector block on the waveform board (see Figure A-3).<br />

10. Refer to Figure A-4 for the location of the pins on the connector (pin<br />

numbers are not silk-screened on the board) and mark the following pins<br />

on the connector block using small pieces of tape:<br />

� Pin 72<br />

� Pin 1 (ground)<br />

� Pin 78 (+10V)<br />

� Pin 24 (+15V)<br />

� Pin 28 (8 MHz)<br />

Note: Testing the wrong pins on the connector block will yield<br />

invalid calibration readings.<br />

<strong>3980xpi</strong>/3980/3900/2900 User <strong>Manual</strong> A-3<br />

0727-3<br />

WAVEFORM<br />

BOARD<br />

78-PIN<br />

CONNECTOR<br />

BLOCK<br />

1548-2

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