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9.
With the cartridge handle in the open position,
loosen the transducer lock screw (Figure 7-9).
10. Use the transducer adjusting screw (Figure 7-9)
to position the transducer to increase or decrease
the time delay. Turn the screw clockwise to
increase the time delay and counterclockwise to
decrease the time delay. One turn of the adjust-
ing screw provides a change in time delay of 78/-ts.
11. Install the CE cartridge, power up machine and
observe the scope pattern (Figure 4-11)
to
verify that timing adjustment is within limit of
30 (±5)/-ts.
NOTE: Some jitter will be experienced in making
this adjustment. The mean timing pulse position
is to be used as a reference setting.
12. Power down the machine, remove the CE
cartridge and tighten the transducer lock
screw to secure the adjustment.
13. Repeat steps 1 through 7 to check the adjust-
ment and readjust according to setps 8
through 10 if required.
227 -5984 (9/65)
Sector
Transducer
Adjusting
Screw
Figure 7-9.
Index Timing Adjustment
7.15
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Troubleshooting
