Head Azimuth Check - Mitsubishi Electric M4853 Maintenance Manual

5.3.5 Head Azimuth
1) Equipment
Disk Tester
CE Diskette (DYMEK 502-ID Standard Diskette)
Oscilloscope
2) Check procedure
2)-1
2)-2
2)-3
2)-4
2)-5
2)-6
Connect CE Tester to Drive then turn-on power
switch.
Turn on motor.
Select drive and load CE diskette.
Seek to TK68.
Read azimuth waveform using oscilloscope.
Trigger: EXT - -INDEX (DC +)
Signal:
CHI
CH2
Acceptable when
following range
FIGURE 8
- TPB9 (AC )
- TPB10
(AC ,INV)
adjusted wave form within
(TPD14)
Add