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RESISTANCE CHECKS
MPI DRIVES

[Stepper motor] 75 OHMS END TO CENTERTAP
151 OHMS END TO END
[Spindle motor] MOTOR COIL = 92 OHMS
TACH COIL = 180 OHMS AT REST
TACH COIL = 135-195 OHMS IN MOTION
[R/W and erase coils] R/W END TO END = 28 OHMS
R/W END TO CENTERTAP = 14 OHMS
ERASE COIL END TO END = .08 OHMS
ALL MEASUREMENTS MADE AT THE APPROPRIATE CONNECTION WHEN DISCONNECTED FROM THE ANALOG PCB.



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This page has been created by Sami Rautiainen.
Read the small print. Last updated June 07, 1998.