Sony SVT-RA168, Service Manual

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2-10
SVT-RA40/RA168
3. Disassembling the Main Parts of
the Mechanism
Points to Note
. When fitting the parts of the mechanism, refer to the
“Assembly Notes”, and proceed in the reverse of dis-
assembly order.
.
Dis-assembly and assembly should be carried out in
EJECT mode unless a movement mode is explicitly
specified. EJECT mode is the state in which the cas-sette
tape has been ejected.
.
Clamps are used to prevent parts coming loose. When
removing a clamp, be careful not to force it, as this can
result in damage.
3-1. How to Make the Mechanism Move
In order to check a movement such as front loading, fron
unloading, tape loading, tape unloading, raising/lower-in
and pressing the pinch roller, you will need to operat
the loading motor. There are two methods of operatin
the loading motor, and these are explained in sections 3
1-1. The above movements can also be performed with-ou
operating the loading motor, by following the metho
explained in Section 3-1-2.
3-1-1. Operating the Loading Motor by the
Manual Method
1. Refer to Section 3-2 and install the mechanism unit.
2. Using your finger, turn the loading motor located at
the rear of the mechanism unit. For EJECT, turn the
loading motor in the direction of the arrow on the
loading motor. For PLAY or FF/REW, turn it in the
opposite direction.
When rotating the loading motor in the EJECT direc-
tion with a tape slacken, stop the rotation of the
loading motor before beginning front unloading.
Rotate the capstan motor with your hand, wind the
slacked part of the tape, and rotate the loading motor
in the EJECT direction again.
When carrying out front loading, release the lock by
pressing down the tray lock lever
8
and the lid
opener lever
9
of the cassette mechanism assembly
(shown in Fig. 3-2-2).
Fig. 3-1-1
Loading motor
The arrow which show the direction of EJECT