Y-E Data YD-380 - Page 10

4.2 Index Sensor Assembly (Refer to Chapter 5, Figure 3)
4.2.1 Service Check~
1. Power up the drive.
2. Without inserting a disk, move the lever to lock position
and check for a to 0.5 V between the PWB connector J3 Pin
All and G (GND). Next, insert a disk and close the door;
the vol tage at the same points should be 2.5 to' 5.25 V'.
4.4.2 Replacement
1. Remove the PWB (Refer to 4.1)
2. Remove J3 connector housing 6. (Refer to Page 9, figure
4.2.2)
3. Take out the carrier cover screws and remove the carrier
cover. '
4.' Lift, up the lead clamps slightly and pullout the leads.
5. Remove the In Use Lamp.
6. Take out the screws for the front lever and carrier assem-
bly, and remove the front lever and carrier assembly.
7. Take out the screws to the Write Protect Sensor assembly,
and as shown in figure 4.4.1, remove the write protect
sensor assembly by pushing in the direction indicated.
CAUTION
When clamping the leads, be careful not to damage the
lead insulation.
8. For reinstallation, reverse the above procedure.
9. Perform a service check. (See 4.l.l)
Note: Make sure the front edge of the carrier plate spring
arm securing the Ready/Off plate does not come in
contact with the leads.