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5.~.4
Head alignment adjustment
1)
Equipment
CE Tester
CE Diskette (DYMEK 502-10 STANDARD DISKETTE)
No. 1 screw driver
Osci
11
oscope
Hex wrench
(1.
5mm di a. )
(Fine point diagonal cutter)
2)
Adjustment procedure
2)-1 Connect CE Tester to Drive (set power off).
2}-2 Turn-on power switch and motor on.
2)-3 Select drive and load CE diskette (close clamp door
slowly).
2)-4 Seek TKOO to TK32 then read amplitude of each
waveform (positioning waveform) at TPB9, TPBI0
under read mode (see Figure 7).
Trigger:
EXT - -INDEX (DC,
+)
(TPDI4)
Signal:
CHI - TPB9
(AC
)
Add
CH2 - TPBI0
(AC,INV)
Speci fi cati on:
CHECK
ADJUST
when A>B
B/A
>
0.57
0.6
A<B
A/B > 0.57
0.6
2}-6 In case seek direction is TKOO TK32 or TK79 TK32,
loosen both set strews, then adjust STM until
signal comes within spec. Tighten screw.
3)
Note: Adjust under following conditions
Temperature:
Humidity:
-11-
23°C ±2°C exposed over 2 hours
50% ±5%
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