Commodore 1581 - Page 21

1581 ALIGNMENT/REPAIR TEST
VERSION 1.5.1
RADIAL ALIGNMENT
+------------~-+--- - won nn ee 5 +
| 135 TPI ALIGNMENT DISK -— PART NUMBER 314854-03 MUST BE INSTALLED |
fone ee eee -- ---- - -—+
The Read/Write Head should step to Track 40
FAILURE - DEFECTIVE DRIVE MECHANISM (STEPPER MOTOR)
DEFECTIVE STEPPER MOTOR CONTROL LOGIC
RADIAL ALIGNMENT TEST OPTION MENU
* Press (+) - Step R/W Head - IN
* Press (-) - Step R/W Head - OUT
* Press (I) - Hysterisis Check - IN
* Press (0) - Hysterisis Check - OUT
* Press (B) - Restore R/W Head - BUMP
* Press (S) - Change Sides
*
Press RETURN - Return To Menu
Displays Alignment/Repair Test Main Menu
RADIAL ALIGNMENT TEST OPTION ONE - STEP R/W HEAD - IN
This Option will Step the Read/Write Head IN (Toward The Center)
of the Diskette One Track at a time
RADIAL ALIGNMENT TEST OPTION TWO - STEP R/W HEAD - OUT
This Option will Step the Read/Write Head OUT (Toward The Outside)
of the Diskette One Track at a time
RADIAL ALIGNMENT TEST OPTION THREE - HYSTERISIS CHECK - IN
This Option Steps the Read/Write Head to Track 42 and Back to Track 40
* When the Head Returns to Track 40 the CAT EYES should be Visible
and With-In the Allowed Limits
RADIAL ALIGNMENT TEST OPTION FOUR —- HYSTERISIS CHECK —- OUT
This Option Steps the Read/Write Head to Track 38 and Back to Track 40
* When the Head Returns to Track 40 the CAT EYES should be Visible
and With-In the Allowed Limits
RADIAL ALIGNMENT TEST OPTION FIVE —- RESTORE R/W HEAD —- BUMP
This Option Steps the Read/Write Head to Track 1 and Back to Track 40
* When the Head Returns to Track 40 the CAT EYES should be visible
and With-In the Allowed Limits
RABIAL ALIGNMENT TEST OPTION SIX -—- CHANGE SIDES
This Option is used to Switch Sides to allow both Read/Write Heads
(0 = Lower --- 1 = Upper), to be Aligned
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