Akai AP-Q310 - Page 39

No.
10
VI,
MODEL ap-9310/c
Turn the power switch ON.
Set the SIZE/MANUAL selector to MANUAL.
Turn the power switch ON to rotate platter.
Adjust
VR1
so
that
the
voltage
of
connector
(Jl1)'s
(9)
and
(10)
may
be
the
same.
(The
voltage
indicated
in
(9)
and
(10)
is
for
switching
motor coil, and its frequency is very low.
WOW AND FLUTTER CONFIRMATION
1) Playback the test record (3,000 Hz).
2) Confirm that the Wow and Flutter is within 0.03% (JIS).
3) If not, re-adjust VR1,: VR2 and VR3.
SCHEMATIC DIAGRAM OF ICS
LA6458S