DV-NC100H (serv.man6). Deck mechanism section - Sharp DVD Service Manual (repair manual). Page 19

2-5-1

H9740AMP

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.

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 3

Alignment 1

Alignment 2

Alignment 1

Install Loading Arm (SP) and (TU) Assembly so that their
triangle marks point to each other as shown in Fig. AL2.

Alignment 2

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

Triangle Marks

Loading Arm 
(SP) Assembly

Mode Gear

Last Tooth

Alignment 1

Alignment 2

Most inside teeth 
of Mode Gear

Alignment 3

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) (HI) as shown in Fig. AL3.

Top View

Cam Gear (A)(HI)

First tooth

Alignment 3

Gear on Rack Assembly

First groove
on the Cam Gear (A)(HI)