Apple Disk II Technical Procedures

More documents

Recommendations

Info

disk ][ adjustments rev. 8-31-82 page 2.4
B. DRIVE DOOR ADJUSTMENTWhen the disk drive door is closed, it should be centered in its slotand even with the surface of the bezel (front panel). If it appearsout of alignment, or binds against the bezel or the diskette, performthe following adjustments.1. (Power off.) Disconnect the drive from the <strong>Apple</strong>. Remove thecover and analog card.2. Check the collet hub adjustment (see section A above (p. 2.3), step2). The collet hub must be correctly adjusted before you adjustthe door.3. Loosen the two mounting screws (Fig. 3, #2) and center the door inits opening.4. Check the door for evenness with the front of the bezel. Adjustthe door if necessary; then tighten the door mounting screws.5. Insert the Adjustment Tool into the drive and allow it to centerproperly.6. While gently closing the drive door, observe the two guide bars(Figure 3, #1), which are visible when viewed from the back of thedrive looking towards the front. There should be no bindingbetween the guides and the tool.7. If there is binding, or if the door is crooked, loosen the two doormounting screws (#2), close the door with the Adjustment Tool inplace, and tighten the screws so that the guides just touch thetool with no binding.disk ][ adjustments rev. 8-31-82 page 2.5
Page 1: DISK ][ TECHNICAL PROCEDURESTABLE O
Page 5 and 6: A. REMOVING THE DISK DRIVE COVER1.
Page 7 and 8: B. REPLACING THE DISK DRIVE CABLERe
Page 9 and 10: C. REPLACING THE ANALOG CARDRemovin
Page 11 and 12: D. REPLACING THE COLLET HUBRemoving
Page 13 and 14: Disk ][ Technical ProceduresSection
Page 15: A. COLLET HUB ADJUSTMENTIf the disk
Page 20 and 21: D. DRIVE SPEED ADJUSTMENT — THE D
Page 22 and 23: disk ][ adjustments rev. 8-31-82 pa
Page 25: Disk Drive Technical ProceduresSect
Page 28 and 29: B. AMPLITUDE TESTThe amplitude test
Page 30 and 31: 13. After the test signal has been
Page 32 and 33: Disk Safety Check5. Set the oscillo
Page 34 and 35: 16. Turn the oscilloscope's trigger
Page 36 and 37: The Test:7. Boot the Calibration (o
Page 38 and 39: E. HEAD RADIAL ADJUSTMENTThe Head R
Page 40 and 41: The Test:13. Change the oscilloscop
Page 42 and 43: ALPS Drive adjustment:23. Adjust th
Page 44 and 45: F. COMPARATOR OFFSET ADJUSTMENT:The
Page 46 and 47: 13. After the test signal has been
Page 49: Disk ][ Technical ProceduresSection
Page 53: Disk ][ Technical ProceduresSection
Page 56 and 57: Disk ][ Analog Board rev. Jun 84 Pa
Page 62 and 63: Disk ][ Analog Card rev. Jun 84 Pag
Page 64 and 65: Disk ][ Analog Card rev. Jun 84 Pag

Apple Disk II Technical Procedures

Create successful ePaper yourself

Delete template?

Save as template?