*** Note *** this information is presented without warantee or gaurantee
to it's reliability or effectiveness.  Nor does it imply that these
methods will work or are the only ones possible.

Reprinted from the Commodore Club of Rockford Newsletter - March 1993


                             THE 1541 FIXER
                               BY BILL DUN

Code  Check These
 A    6502
 B    6522 
 C    32530201
 D    90122905
 E    LM311
 F    582
 G    9602
 H    32557202

CODES SYMPTOMS 

ACD   ERROR LED STATUS ON ALL THE TIME
B     DRIVE MOTOR RUNS ALL THE TIME AND LED STAYS ON
AD    DRIVE MOTOR RUNS ALL THE TIME AND LED STAYS OFF
B     AFTER WARM UP, MOTOR RUNS ALL THE TIME
DE    DOES NOT LOAD WHEN HOT OR LED FLASHES 3 TIMES
D     SEARCHES WITH LED FLASHING CONTINUOUSLY
C     SEARCHING WITH NO RED LED
FGH   DRIVE FAILS TO READ
BH    FAILS TO FORMAT DISK
AB    STEPPER MOTOR DOES NOT STEP FORWARD
A     WILL NOT SAVE WHEN DRIVE HEATS UP
D     LIGHTS STAY ON, MOTOR RUNS CONTINUOUSLY


NO LED'S ON POWER UP
 - FUSE & POWER SWITCH
 - +5/12 VOLT LINES
 - POWER CORD
FLASHES ON POWER UP
 - ALL RAM & ROM'S 
DRIVE MOTOR RUNS WITH NO RED OR GREEN LED'S
 - VR2 POWER TRANSFORMER
LOADS PROGRAMS WITH RED LED FLASHING
 - DRIVE SPEED
 - STEPPER MOTOR
LOADING INTERMITTENT
 - ALL ROM'S
 - DRIVE ALIGNMENT 
MESSAGE OF "FILE NOT FOUND"
 - CLEAN DRIVE
 - HEAD-0 STOP
 - ADJ.-ALIGNMENT
DRIVE SPEED IS NOT STABLE
 - DC MOTOR
LOCKS-UP WHEN LOADING
 - 901229-05 
FAILS THE PERFORMANCE TEST & DISPLAYS ERROR 21
 - CHECK TEST DISK
 - DRIVE MOTOR
FAILS THE PERFORMANCE TEST & DISPLAYS ERROR 27
 - STOP ADJUSTMENT 
PASSES PERFORMANCE TEST TO TRACK 18 DISPLAYS ERROR 21
 - READ/WRITE HEAD
PASSES PERFORMANCE TEST BUT WLL NOT LOAD PROGRAMS
 - STEPPER MOTOR
FLASHING LIGHT ON & OFF DURING LOADING
 - ALIGNMENT