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Interface Unit CS-120A Self Test
1. Open the cover of the interface unit.
2. Find DIP switch DP-1 on the lone circuit board. Turn switch
#6 on to start the self test. The results of the check appear on
the digital display beside the DIP switch.
3. Turn the DIP switch off after completion of the test.
If the readout shows "0" the unit
is functioning properly. If it is
not working properly any of the
following nine numerals or six
alphabets appear.
,
,
,
,
,
,
Figure 14-8 Interface unit CS-120A, cover opened
Digital
Turn #6 on.
display
,
,
,
,
,
,
.
,
,
,
14-5
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