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

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4.0 SERVICE CHECKS, REPLACEMENTS AND ADJUSTMENTSThis chapter contains detailed maintenance procedures for theassemblies listed below. Note that the list is separated intotwo maintenance levels:Levell:Level 2:Can be performed without special training or tools.Special training and tools required.Level 14.1 PWB4.2 Index Sensor4.3 Track 00 Sensor4.4 Write Protect Sensor4.5 Media Sensor4.6 In Use LampLevel 24.7 Carrier4.8 Index Lamp (on Motor Control PWB)4.9 Drive Motor (on Motor Control PWB)4.10 Head Load Solenoid4.11 Front Lever4.12 Front Bezel4.13 Stepper4.14 Head/Carriage AssemblyNote:Refer to Chapter 5 for Parts/Assemblies Locations,Chapter 6 for Test Points/Connector Pin Assignments andChapter 9 for Exploded View.
[ Levell]4.1 PWB (Refer to Chapter 5, Figure 1)4.1.1 PWB Replacement1. Disconnect the 4 connectors (J1, J2' J3, J4) from the PWB.2. Remove the four screws securing the PWB to the framecasting.3. Remove the PWB.4. For reinstallation, reverse the above procedure.Note: Make sure to mount the PWB below the carrier cover whenreinstalling.J4 ConnectorJl SignalConnectorJ3 Connectoro,--,I ,, II ,--, :IPWBScrewsScrews (with lock and washer)4-M3 x 6Figure 4.1.1J2 Connector
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: 3 .0 PREVENTIVE MAINTENANCE3.1 Gene
Page 11 and 12: Carrier PlateSpringFront Bezel Side
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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