TABLE 6-1 (CONTINUED)
TROUBLESHOOTING GUIDE
Condition
Possible Cause
Recommended Action
No Track 0
indication.
Defective seek.
See Will Not Seek or Restore.
Track 0 switch not connected.
Check Pll.
Track 0 switch not adjusted.
Adjust Track 0 switch.
Defective logic.
Replace Logic circuit board.
Defective Track 0 switch.
Replace Track 0 Switch Assembly.
Fails drive
select check.
Power not applied to drive.
Verify power supply voltages.
Drive not selected.
Verify proper jumper
configuration. See Section 3.
Faulty Activity L.E.D.
Replace Activity L.E.D.
Faulty Logic circuit board.
Replace Logic circuit board.
Fails Write
Protect switch
check and
adjustment.
Defective Write Protect switch.
Broken Write Protect lever.
Write Protect switch out of
adjustment.
Replace Write Protect switch.
Replace left rail.
Adjust Write Protect switch.
Fails drive
motor speed
check and
adjustment.
See Spindle Speed Out of
Tolerance or Not Turning.
Fails Cats Eye
alignment check
and adjustment.
Cannot read.
Cannot step.
See Will Not Read.
See Will Not Seek or Restore.
Track 0 sensor misadjusted.
Perform Track 0 switch
adjustment procedure.
Alignment diskette defective.
Verify alignment diskette, and
replace if necessary.
6-4
Summary of Contents for TM100-1
Page 8: ......
Page 11: ...FIGURE 1 1 DISK DRIVE ...
Page 12: ......
Page 18: ......
Page 29: ...WRITE PROTECT TAB WRITE PROTECT TAB FIGURE 3 5 WRITE PROTECT TAB ...
Page 34: ...FIGURE 4 4 INTERCONNECT BLOCK DIAGRAM 4 4 ...
Page 58: ...CARRIAGE ASSEMBLY FIGURE 5 14 UPPER ARM AND SCREWS ...
Page 66: ...FIGURE 6 2 LOGIC CIRCUIT BOARD MOUNTING 6 8 ...
Page 72: ...E RIN G C O N E SH A FT FIGURE 6 7 CONE S COMPONENT PARTS 6 14 ...
Page 76: ...FIGURE 6 13 INDEX EMITTER SENSOR S MOUNTING AND CABLE HARNESSING 6 18 ...
Page 79: ...FIGURE 6 16 DRIVE MOTOR HARNESSING AND MOUNTING 6 21 ...
Page 82: ...FIGURE 6 19 TRACK 0 ADJUSTMENT SCREW 6 24 ...
Page 86: ...FIGURE 6 24 UPPER ARM SCREWS 6 28 ...
Page 87: ...MOUNTING FIGURE 6 26 FELT PAD ON UPPER ARM 6 29 ...
Page 90: ......
Page 92: ...A 2 ...
Page 93: ...A 3 ...
Page 94: ......
Page 99: ...l a n d e i n CORPORATION LOGIC CIRCUIT BOARD SCHEMATIC 180011 REV F SHEET 2 OF 3 B 5 ...
Page 100: ... SV SHEET 3 OF 3 B 6 ...