Alignment Procedures Of Mechanism - Sharp DV-NC100X Service Manual

ALIGNMENT PROCEDURES OF MECHANISM

The following procedures describe how to align the
individual gears and levers that make up the tape loading/
unloading mechanism. Since information about the state
of the mechanism is provided to the System Control
Circuit only through the Mode Switch, it is essential that
the correct relationship between individual gears and
levers be maintained.
All alignments are to be performed with the
mechanism in Eject mode, in the sequence given.
Each procedure assumes that all previous procedures
have been completed.
IMPORTANT:
If any one of these alignments is not performed properly,
even if off by only one tooth, the unit will unload or stop
and it may result in damage to the mechanical or electrical
parts.
Alignment points in Eject Position
Top View
Bottom View Alignment 1
Alignment 1
Loading Arm (SP) and (TU) Assembly
Install Loading Arm (SP) and (TU) Assembly so that their
triangle marks point to each other as shown in Fig. AL2.
Alignment 2
Mode Gear
Keeping the two triangles pointing at each other, install
the Loading Arm (SP) Assembly so that the last tooth of
the gear meets the most inside teeth of the Mode Gear.
See Fig. AL2.
Loading Arm
(TU) Assembly
Alignment 1
Alignment 3
Alignment 3
Cam Gear (A), Rack Assembly
Install the Rack Assembly so that the first tooth on the
gear of the Rack Assembly meets the first groove on the
Cam Gear (A) as shown in Fig. AL3.
Alignment 2
Top View
Fig. AL1
First groove
on the Cam Gear (A)
2-5-1
Triangle Marks
Loading Arm
(SP) Assembly
Last Tooth
Alignment 2
Most inside teeth
of Mode Gear
Mode Gear
Cam Gear (A)
Alignment 3
First tooth
Gear on Rack Assembly
Fig. AL2
Fig. AL3
H9745AMP