RESISTANCE CHECKS
![[Stepper motor resistance check]](large/19a.gif) |
32 ohms end to centertap 64 ohms end to end |
![[Spindle motor resistance check]](large/19b.gif) |
Motor coil = 17 ohms Tach coil = 175 ohms at rest Tach coil = 135 - 190 ohms in motion |
![[R/W and erase coil resistance check]](large/19c.gif) |
R/W end to end = 32.4 ohms R/w end to centertap = 16.3 ohms Erase coil end to end = 10.5 ohms |