Testing The Duplex Ii Computer - Wayne Vista Series Service

B.4.

TESTING THE DUPLEX II COMPUTER

There are four functions of the Duplex II computer which can be readily field tested;
these four functions are as follows:
• AC output to the solenoid drive board
• Output to the pulsers and handle switches
• Power output to the displays
• Output to the annunciators
• Power output to the preset control board
In addition to these four functions the input power to the computer and the pico fuses
on the computer can be tested. The Duplex II computer is shown in Figure B-5 and
the pinouts of the various connectors on the computer are shown in Figures B-6
through B-10.
November 1992
FIGURE B-5. DUPLEX II COMPUTER
Part No. 917543 Rev. A
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