Mitsubishi Electric M4853 Maintenance Manual page 84

5.3.5 Head Azimuth
1) Equipment
CE Tester
CE 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.
EXT - -INDEX
Trigger :
CHI -
Signal :
CH2 -
Acceptable when adjusted waveform within
following range
(DC +)
TPA9 (AC, Normal)
(AC, Inverted) Adü Woae
TPA10
(TPB14)
d ,