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2.
Install a cartridge and check for clearance on
each side.
If
there is a gap between the front
of the top rails of the receiver and the matching
raised portion of the front top of the cartridge
(near the door), take up this clearance equally
on both sides using mM cards as shims.
3.
Shake the front of the cartridge receiver side-
ways until it assumes its preferred position.
4.
With the front of the cartridge receiver located
in its preferred position, tighten the two self
locking nuts until they just contact surfaces of
the cartridge receiver pivot brackets. This
will secure the adjustment.
NOTE: With this adjustment established, the car-
tridge receiver and receiver pivot brackets should
always be removed and replaced as an assembly with-
out disturbing the adjustment of the self locking nuts.
7.17 INTERLOCKS
7. 17. 1 Handle and Interlock Adjustment (Figure 4-10)
NOTE: The cartridge receiver adjustments
(section 7. 16. 2) must be completed prior to attempt-
ing an adjustment of the cartridge interlocks.
Handle Stop Screw (View A, Figure 4-10)
The Handle stop screw must be adjusted so that when
a cartridge is in place, the handle risers will have
clearance with the outer edge (vertical-cylindrical
surface) of the cartridge.
Adjustment of the handle stop screw is accom-
plished as follows:
1.
Install CE Cartridge in machine.
2.
Loosen handle stop screw locknut.
3.
Adjust the handle stop screw so ,that handle risers
are parallel with, and clear the outer edge of the
cartridge by O. 060 (±O. 030) inch.
4.
Secure locknut on handle stop screw after this
adjustment is obtained.
NOTE: At discretion of the CE, the interlock handle
and bracket assembly may be removed to accomplish
the next several adjustments. Remove the two flat-
head screws which secure bracket to the baseplate.
Remove wire connections at pins 3 and 4 from termi-
nal block (TB6). Mark each pin location to facilitate
reassembly.
7,14
Latch Screw Clearance Adjustment (View B,
Figure 4-10)
1.
Fully rotate handle to the Cartridge In Place
position.
2.
Adjust the interlock latch screw so that it will
seat into the square-hole notch of the latch.
3.
Determine that 0.040 (±O. 010)-inch overtravel
latching clearance exists between the flat sur-
face of the screw and upper edge of notch on
the latch. Adjust latch screw as necessary to
obtain this clearance.
4.
Tighten locknut on latch screw after adjustment
has been made.
Latch Switch Adjustment
Adjustment of latch switch is the same as
section 4. 19. 1.
Interlock Magnet Adjustment
Adjustment of the interlock magnet is the same as
section 4. 19.1.
7. 18 SECTOR TRANSDUCER
7. 18. 1 Sector Transducer Index Timing Adjustment
(Figure 7-9)
1.
Remove CPU signal cable from machine.
2.
Install CE Cartridge.
3.
Power up machine so that heads will load.
4.
Using CE panel, access carriage to track 095.
5.
Using CE oscilloscope, read track 095 by
scoping pin D3B07. Synchronize the negative
reference on pin K2B04.
6.
Observe the time delay from reference pulse
to the peak of the timing pulse on track 095.
The delay from the leading edge of the reference
pulse to the timing pulse should be 30 (±5) p,s.
NOTE: The timing pulse precedes the burst of the
all bits pattern by 10p,s.
7.
Determine the magnitude and direction
(+
or -)
of the correction to be made in pulse timing so
that a time delay of 30 (±5)p,s will' prevail for
both read/write heads.
8.
Power down machine and remove CE
cartridge.
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Table of Contents
Troubleshooting
