
Diagnostics 7156 Owner’s Guide
October 199550
Adjust the MICR Reader
The procedures to adjust the MICR Reader involve setting the DIP switches and
adjusting the two MICR Reader potentiometers on the PC board. You will need
an insulated flathead screwdriver with a four-inch long shaft and 1/8 inch flat
tip.
Caution: Do not adjust the potentiometers if the green LED is not lit (indicating
the switches are incorrectly set). Doing so causes an incorrect noise sample.
Note: You may need to perform the following steps several times to get the
potentiometers adjusted for the least amount of noise.
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