Stepper Motor |
![[Stepper motor]](small/page_17a.gif) |
End to end on either coil = 74 ohms
End to centertap = 37 ohms |
Spindle Motor |
![[Spindle motor]](small/page_17b.gif) |
Motor coil (red wire to blue wire) = 71 ohms
Tach coil (green wire to yellow wire) = 175 ohms at rest
Tach coil while rotating spindle = 135 - 195 ohms
Measurements made at connector on motor control pcb.
|
R/W Head |
![[R/W Head]](small/page_17c.gif) |
R/W coil (black wire to red wire) = 28.5 ohms
R/W coil (red wire to white wire) = 15 ohms
R/W Head R/W coil (black wire to white wire) = 15 ohms
Wire Erase coil (green wire to white wire) = 11.9 ohms
Measurements made at the 5 pin plug at the end of the R/W head cable.
The plug should be disconnected. |