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SECTION2
Operation
2.5.3
Shielded Cables
RF1 can be generated when high voltages are switched. Shielded cables
are one way to reduce the amplitude of the emissions. If a shielded cable
is used along with a Model 7169-KIT to connect to the Model 7169, the
shield should be connected to earth at one end of the cable. There are no
unused pins on JlOl, J102, and J103, so theshieldmustbe
connected ex-
ternal to the connectors.
Any cabling used with the Model 7169 should have a working voltage
specification
of at least 500V
2.6
CARD INSTALLATION AND REMOVAL
The following procedures
explain how to install and remove the Model
7169 scanner card with the Models 705 and 706 scanner mainframes.
WARNING
To prevent electrical shock which could result in injury or
death, turn off the scanner power and disconnect
the line
cord before installing
or removing
scanner cards. Also en-
sure no voltage is applied from user circuits.
CAUTION
Contamination
will degrade the performance
of the scan-
nercard.
To avoid contamination,
always grasp the card by
the side edges. Do not touch the board surfaces or compo-
nents.
2.6.1
Scanner Card Installation
Perform the following procedure
to install the Model 7169 scanner card
in either the Model 705 or 706 mainframe. Refer to Figure 2-7 to install
the card in the Model 705 and refer to Figure 2-8 to install the card in the
Model 706.
2-12
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