STC SmartScanIS, User Manual

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EUD-2016026-00 Rev.2, SmartScanIS User’s Guide for Union Pacific, 14 January 2021
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8 Gently remove the Scanner Interface board from the System Interface board.
The Talker board is the board with the components in view.
9 Store the Scanner Interface board in a safe place until you replace it.
If you're replacing all the speech data chips, start with the chip in U14, replacing
one chip at a time, until you replace the chip in U29.
(On top of the chip that goes
into U14 is the wording "SPEECH #01," on top of the chip that goes into U15 is the
wording "SPEECH #02," and so on.)
10 Using a chip removal tool or small slotted screwdriver, lift the EPROM from its socket
by prying gently, one end at a time, until the pins are free of the socket.
11 To insert the new EPROM in its socket:
a Orient the notch on the chip to the notch on the socket.
Putting the chip in backward or bending one or more of the pins may damage
the SmartScanIS.
b Line up the pins with the socket contacts.
c With a firm rocking motion, press the EPROM into the socket.
12 Repeat steps 10 and 11 until all the speech data chips that are to be replaced are
replaced.
13 Gently replace the Scanner Interface board onto the System Interface board.
14 Using a #2 Phillips head screwdriver, replace the six screws that hold the Scanner
Interface board to the System Interface board.
Speech Data Chips (U14-U29) Speech Data Chips (U14-U29)