YE Data YD-380 5.25 inch HH HD Floppy.pdf

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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 positionand check for a to 0.5 V between the PWB connector J3 PinAll and G (GND). Next, insert a disk and close the door;the voltage at the same points should be 2.5 to' <strong>5.25</strong> V'.4.4.2 Replacement1. Remove the PWB (Refer to 4.1)2. Remove J3 connector housing 6. (Refer to Page 9, figure4.2.2)3. Take out the carrier cover screws and remove the carriercover. '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 assembly,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 protectsensor assembly by pushing in the direction indicated.CAUTIONWhen clamping the leads, be careful not to damage thelead 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 springarm securing the Ready/Off plate does not come incontact with the leads.
Carrier PlateSpringFront Bezel SideIndex Sensor Screw(with lock and washer,M3 x 6)Collet GuideLead ClampCollet ShaftFigure 4.2.1J3 Connector Housing ~ssignmentConnectorNumber ---t--~Figure 4.2.2ConnectorNo.1 StepperPart2 Head Load Solenoid3 Drive Motor4 Write Protect Sensor5 In Use Lamp6 Index Sensor7 Track 00 Sensor8 Media Sensor
Page 1 and 2: VY·E DATAMAINTENANCE MANUALYD-380H
Page 3 and 4: YD-380 Maintenance ManualTABLE OF C
Page 5 and 6: 1.0 INTRODUCTIONThis manual describ
Page 7 and 8: 3 .0 PREVENTIVE MAINTENANCE3.1 Gene
Page 9: [ Levell]4.1 PWB (Refer to Chapter
Page 13 and 14: 6. Verify that the timing between':
Page 15 and 16: 4.4 Write Protect Sensor (See Chapt
Page 17 and 18: 4.5.2 Removal and Replacement1. Rem
Page 19 and 20: [ Level 2 ]4.7 Carrier Assembly (Se
Page 21 and 22: 4.9 Drive Motor Assembly (Refer to
Page 23 and 24: 4.10.2 Removal and Replacement1. Re
Page 25 and 26: 4.11 Front Lever (Refer to Chapter
Page 27 and 28: 4.13 Stepper Assembly (Refer to Cha
Page 29 and 30: - Connect channel 2 to PWB test poi
Page 31 and 32: c) Compensation (for humidity only)
Page 33 and 34: 6. In step 5 above, move the steppe
Page 35 and 36: FRAMESTEPPERoooDRIVE MOTORROTORHEAD
Page 37 and 38: HEADCABLEBAILMINI CLAMPoTR 00SENSOR
Page 39 and 40: 6.0 TEST POINT/CONNECTOR PIN ASSIGN
Page 41 and 42: TRANSDUCER - J3Pi"n No. Signal Name
Page 43: 8.0 SCHEMATIC DIAGRAMS1. Revision o
Page 46 and 47: 9.0PWB 11P!N 128011-- YIn Use LampP
Page 48: 6. If it appears that cleaning is n

YE Data YD-380 5.25 inch HH HD Floppy.pdf

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