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Reverse removal sequence.
NOTE
Check for 1/32 inch. clearance
between photosensor and a loaded
tape cartridge. Carefully adjust
replacement photosensor to achieve
this clearance.
4.9.2 EJECT SOLENOID REPLACEMENT
If
the Model 331 has been damaged by a current
overload and the eject solenoid will not actuate, it
probably requires replacement.
It
should be tested
for shorts and replaced if it is defective.
Removal
1.
Remove the Transport Electronics board (four
nuts).
2.
Remove press nut A shown in Figure 4-1.
3.
Disconnect spring B shown in Figure 4-1.
4.
Lift eject solenoid assembly off its mounti.ng
post, then slide solenoid armature off the sole-
noid shaft.
5.
Detach solenoid case from the spring arm.
110-0115A
Figure
4-1.
Eject Solenoid Replacement
4-6
406-0331-600
Do
not change the setting of the
solenoid adjustment arm.
Replacement
Reverse removal procedure.
Aft~r
replacement,
make certain interlock switches function properly.
(See paragraph 4.7.5 for test procedure.)
4.9.3 BEVEL GEAR REPLACEMENT
1. Remove Transport Electronics board
(four
nuts.)
2.
Using a 3/32 inch Allen wrench, detach capstan
shaft mounting assembly from chassis. (This
Allen screw is located on top of the transport
deck. )
3.
Loosen capstan bevel setscrew and slip bevel
gear off the capstan shaft.
4.
Motor shaft bevel gear can also be easily re-
moved at this time. Simply loosen its setscrew
and slip the bevel gear off the motor shaft.
4.9.4 FILE PROTECT / INTERLOCK ASSEMBLY
REPLACEMENT
1.
Unsolder connecting wires from the assembly.
Note wire colors to facilitate reconnection.
2..
Using a No.1 Phillips screwdriver, remove the
two mounting screws and detach entire assembly
from chassis.
It
is replaceable as an assembly.
Installation
Reverse removal procedure.
NOTE
After installation, check for 1/32
inch clearance between file protect
switch contacts and an inserted tape
cartridge. Adjust file protect assembly
to obtain this clearance as required.
4.9.5 MAGNETIC HEAD REPLACEMENT
1.
Disconnect magnetic head's molex connectors.
2.
Detach magnetic head assembly from chaSSis
by removing 3/32 inch Allen mounting screws.
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