JVC DR-MV2SEU, Service Manual

Page: 41 / 99

(No.YD087)1-41
5.4 ALIGNMENT PROCEDURES OF MECHANISM
The following procedures describe how to align the individual
gears and levers that make up the tape loading/unloading mech-
anism. 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 indi-
vidual 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.
5.4.1 Alignment points in Eject Position
Fig.1
5.4.1.1 Alignment 1
Loading Arm (SP) and (TU) Assembly
Install Loading Arm (SP) and (TU) Assembly so that their trian-
gle marks point to each other as shown in Fig. 2.
5.4.1.2 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. 2.
Fig.2
5.4.1.3 Alignment 3
Cam Gear (A) (HI), 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) (HI) as shown in Fig. 3.
Fig.3
Alignment 3
Alignment 1
Top View
Bottom View
Alignment 2
Loading Arm
(TU) Assembly
Triangle Marks
Loading Arm
(SP) Assembly
Mode Gear
Last Tooth
Alignment 1
Alignment 2
Most inside teeth
of Mode Gear
Top View Cam Gear (A)(HI)
First tooth
Alignment 3
Gear on Rack Assembly
First groove
on the Cam Gear (A)(HI)