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Head Azimuth Check - Mitsubishi Electric M4853 Maintenance Manual

5.25 inch flexible disk drive
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Table of Contents
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)
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