Sony OA-D32W Service Manual page 7

SECTION 1
INTRODUCTION
Introduction
This manual is a maintenance guide forOA·D32W
(Double sided) and OA·D32V (Single sided).
The overall check after removals and adjustments
will be included in this section.
SECTION 2 describes disks and tools necessary for
maintenance.
SECTION 3 provides fault diagnostic procedures
that may require spare parts or some adjustments.
SECTION 4 and 5 cover parts replacements and
adjustments, respectively.
SECTION 6 and 7 consist of circuit diagrams, ass'y
drawin~s, and parts lists.
The cassette dummy (4-603-929-00) should be inserted in the OA·D32W when it is
transported. Otherwise, its heads may be damaged.
Perform maintenance in accordance with the procedure specified in this manual as
follows:
(Example)
e. Fasten the guide shaft with the two screws (PSW2.6 x 6).
Em
f. Fasten the head board to the chassis on the bottom surface, and apply nut lock
paint to the screw.
Em
g. Connect the head board to the head harness (by four points) with a soldering
iron. (Refer to Fig. 4-14 (c) )
_ h. Connect the head board to the head harness (by six points) with a soldering
iron. (Refer to Fig. 4-14 (d»
_ i. Fasten head board and terminal shield plate with a screw (PSW2.6 x 8) on the
chassis bottm, and then apply nut lock paint onto it.
E!D
j. Perform the stepping motor load torque adjustment. (Refer to 5-5)
k. Install the cassette·up ass'y in place. (Refer to 4-9)
Steps e, h, i, and k should be carried out in sequence for the OA·D32W.
Steps e, f, g,
j
and k should be carried out in sequence for the OA·D32V.
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