NEC D2246 Maintenance Manual page 49

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FUNCTION
Position signal
amplitude
Seek time
Table 3-2 G9QST Servo Signals (cont'd)
TEST
POI~
1
TP6, TP7
TPI-4
of
G9QST is
the trigger.
TP7
TPI-5
COMMENTS
000
~
691 Cylinder Repeat Seek
+5.6
E
- - - - - - - .
3.8V
TP7
_~
- - - - H H + - - - + - - - -
'- --3.8V
3.8V
-5.6
+5.6
E
----
I
TP6 -
If
I
1/
i
:~====~~3~.8V
-5.6
000
~
6gr Cylinder Repeat Seek
~ L
I -
41-43 ms
------l
*The settling time is not included.
3-16