Audio Height Adjustment - Sony Discman D-50MkII Service Manual

ACE head position
adjustment screw
ACE head position adjustment screw
[detail drawing
of section A]
This point must be on
the extension of the
center line of the circle.
center
Fig. 2-24 Position Adjustment of ACE Assembly (2)
2-6. Audio Height Adjustment
This adjustment is basically unnecessary, as it is
preadjusted at the factory. The same applies to the
repair ACE assembly. However, if the adjustment
screw has been touched and it is absolutely necessary
to adjust, perform the following procedure.
Parallel Adjustment Relative to ACE Head Guide
1) Place the parallel plate SL-0657 on No. 5 guide
and audio/CTL head. (Fig. 2-25)
parallel plate
Fig. 2-25
2) With No. 5 guide as reference, confirm that there
is no space between the audio/CTL head and
the parallel plate. If there is space at the top (Fig.
2-26 @) ), adjust by turning the height adjust-
ment screw ® counterclockwise. (Fig. 2-27)
If there is space at the bottom (Fig. 2-26 @ ),
adjust by turning the height adjustment screw
@ clockwise.
(Judge if there is space by pressing the parallel
plate with a finger to see if there is play.)
top space
f
@
parallel
plate
Fig. 2-26
3) Put KR5-2H into FWD.
4) Perform azimuth adjustment according to the
Service Manual.
5) While observing the audio head with a dental
mirror, match up the core upper edge and tape
upper edge as in Fig. 2-28, with the two height
adjustment screws and the azimuth adjustment
screw.
Turn the two height adjustment screws in the
same direction at the same angle, and the azimuth
adjustment screw in the opposite direction at
the same angle. Be sure to turn all three screws.
height adjustment screw
azimuth
adjustment
erase head
audio/CTL
Fig. 2-27