07-19-2012, 12:42 PM
Single head or multiple heads damage;
Damaged spindle motor (bearing seizure, breakage or short-circuit of motor phases);
Damaged preamplifier-commutator chip;
Surface scratches and damaged head;
Reading/writing instabilities;
Physical bad sectors
Damaged spindle motor (bearing seizure, breakage or short-circuit of motor phases);
Damaged preamplifier-commutator chip;
Surface scratches and damaged head;
Reading/writing instabilities;
Physical bad sectors