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RESTRICTED USE ONLY Fargo Electronics, Inc.
Persona C16 Card Printer Service Manual (Rev. 5.0)
77
Adjusting the Magnetic Encoding Head
Use this procedure to adjust the coercivity of the Magnetic Encoding Head.
Tools Needed: Phillips Head Screwdriver, Small Standard Screwdriver, Digital Voltmeter
Steps Procedure
1
Caution: Turn off the Printer and unplug the power cord from the
Printer.
2 Open the Upper Imaging Assembly.
3 Loosen the top two corner screws (130987) found just behind the top edge of the
Rear Cover.
4 Close the Upper Imaging Assembly.
5 Remove the screw (130987) by the Card Exit Ramp.
6 Remove the Rear Cover.
7 Locate the Potentiometer labeled RP4.
8 Locate the test point labeled TP8
9 Place the positive lead of the voltmeter on TP8. Place the negative lead on
ground.
10 Adjust RP4 until the voltage on TP8 reads 6.0 volts DC on the voltmeter for High
Coercivity or 2.5 volts DC on the voltmeter for Low Coercivity.