Sony OA-D32W Service Manual page 36

(32V) Head Arm Ass'y Replacement
(32W) Head Carriage Ass'y Replacement
Em
1. Smoothly pull out the head carriage ass'y
together with the guide shaft. (Refer to Fig.
4-14 (b»
Em
m. Disconnect the head board from the head
harness (by four points) with a soldering iron.
(Refer to Fig. 4-14 (c) )
Em
n. Disconnec~ the head board from the head
harness (b'y six points) with a soldering iron.
(Refer to ,Fig. 4-14 (d) )
4-14-2. Installation and Adjustment
NOTE:
Apply Sony oil to the guide shaft before installing.
Apply Sony oil to the openings of both the head ann
ass'y and head carriage au'y using the bamboo stick.
Em
a. PaSs the guide shaft through the openmg of
the head arm ass'y.
Em
b. Pass the guide shaft through the opening of
the head carriage ass'y.
Em
c. Carefully install the head arm ass'y in place.
(Refer to Fig. 4-14 (a) )
Em
d. Carefully install the head carriage ass'y in
place. (Refer to Fig. 4-14 (b»
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.
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»
ED
i. Fasten head board and terminal shield plate
with a screw (PSW2.6 x 8) on the chassis
bottom, and then apply nut lock paint onto it.
NOTE:
The screw must not be tighten too hard.
It
may produce electrical short or'
crack
of
head board. ,
Em
j. Perform the stepping motor load torque ad-
justment. (Refer to 5-5)
k.
Install the cassette-up ass'y in place. (Refer to
4-9)
Em
1. Install the head load ass'y in place. (Refer to
4-8)
Em
m. Install the damper in place. (Refer to 4-7)
-38-
n. Install both the FC-9/FC-14 Mounted Board
and shield plate. (Refer to 4-1)
o. Perform the HL arm height adjustment.
(Refer to 5-9)
p. Perform the head clearance adjustment.
(Refer to 5-10)
q'.
Make the head clean. (Refer to 5-11)
r. Perform the radial alignment and TRK 00
sensor adjustment. (Refer to 54)
s. Perform the read amplifier gain and offset
adjustment. (Refer to 5-7)
t. 'Perform the index phase adjustment. (Refer
to 5-6)
u. Install the main cover in place. (Refer to 4-5)
v . .Install the front panel ass'y in place. (Refer
to 4-1)