Akai AP-D40 User manual
.
SPEED
AKAI
ma
QUARTZ
LOCK
DD
TURNTABLE
,
“BULL
AUTOMATIC
4s
model
AP-QED
es
_
FULL-AUTO
DIRECT
DRIVE
TURNTABLE
Je
Be
|
MODEL
AP-D40/C
FULL-AUTO
QUARTZ
DIRECT
DRIVE
TURNTABLE
_
MODEL
AP-Q60/
C
AP-D40/C
AP-Q60/C
FULL-AUTO
DIRECT
DRIVE
TURNTABLE
voon
AP-D40/C
FULL-AUTO
QUARTZ
DIRECT
DRIVE
TURNTABLE
voon
AP-Q60/C
ALSO
APPLICABLE
TO
BLACK
PANEL
MODEL
SECTION
1
SERVICE
MANUAL
................+.-.
3
SECTION
2.
PARTS
LIST
2c.
.ce0
sce
eew
ceva
t
naas
en
2539
SECTION
3
SCHEMATIC
DIAGRAM
................
59
SECTION
1
SERVICE
MANUAL
TABLE
OF
CONTENTS
I...
TECHNICAL:
DATA
oii:o-ccsctonceceie
eet
0:
8
Sin
io
Bug
dave
Sad
Ba
6
BR
wes
1.
MODEL
AP-D40/C
...........
saa
trie
dea
teat
ae
5
hie
tata
heehee
2.,MODEE,
AP-Q60/C
=e
siaeieg
Boned
iy
whe
eeeias
BG
te
Ati
owe
aes
diced
ore
Wi.
DISMANTLING
OF
UNIT...
0...
cee
eee
HEY
‘CONTROES
59505
:5
Siete
6
ode
pA
an
geaand
@
Wie
aSle
enon
lons
A
deren,
alu
eden
1.
“MODEL,
-AP-D40/C.
scene
ite
co
pt
Swe
Os
beac
dw
eda
eR
be
2:
MODEL
‘AP-Q60/C
1s
ouisdin,
ci
etele-aee
Goo
eo
RFeaed
wus
ea
Sere
e
baw
ledene
ets
IV.
PRINCIPAL
PARTS
LOCATION
.............
0.000
e
cece
cues
1-MODEL:
AP-D40/€)
sic
eae
wakes
as
See
erie
nar
ea
aad
2
MODEL,
APOGO
E200
ctl
Allen
ste
oat
nets
hha
ten
ON
oy
Uae
ag
VOLTAGE
AND
CICLE
CONVERSION
.........
0.0.0.0
cc
ee ee
euae
BLOCK
DIAGRAM
...
0...
ccc
cee
ete
eens
<<
1.
MODEL
AP-D40/C
1.0...
ec
ec
eee
tee
ee
nnes
2.
MODEL
AP-Q60/C
2...
ce
eee
teen
eee
ees
VII.
EXPLANATION
OF
HOW
THE
DC
BRUSHLESS
D.D
MOTOR
WORKS
...
Vill.
EXPLANATION
OF
HOW
THE
SERVO
CIRCUITRY
WORKS..........
I
MODEL
DP
DAC
sh
fase
tase
aha
ORS
Ed bw
ewes
Badass
2
MODEL
APOQGG
a4
cart
Ats
yeh
te
tah
alley
ded
tard
ogaaticy
Sak
ee
IX.
MECHANICAL
ADJUSTMENT
..........
0...
cece
cee
eee
ences
1.
MODEL
AP-D40/C
2...
cee
ee
eans
2.
MODEL
“AP-Q60/C
onesies
Wipers
tied,
vada
aoe
Ate
Demaahie
a
ater
XI.
CLASSIFICATION
OF
VARIOUS
P.C
BOARDS
..............000005
For
basic
adjustments,
measuring
methods,
and
operating
principles,
refer
to
GENERAL
TECHNICAL
MANUAL.
l.
TECHNICAL
DATA
a
1.
MODEL
AP-D40/C
TURNTABLE
DRIVE
SYSTEM
AND
MECHANISM
MOTOR
SPEED
AND
PITCH
CONTROL
WOW
AND
FLUTTER
RUMBLE
SPEED
ACCURACY
TONE
ARM
EFFECTIVE
ARM
LENGTH
STYLUS
PRESSURE
ADJUSTMENT
RANGE
APPLICABLE
CARTRIDGE
WEIGHT
ARM
LIFTER
OVERHANG
OFFSET
ANGLE
HORIZONTAL
TRACKING
ERROR
ANGLE
CARTRIDGE
OUTPUT
VOLTAGE
CHANNEL
SEPARATION
OPTIMUM
STYLUS
PRESSURE
STATIC
VERTICAL
COMPLIANCE
STATIC
HORIZONTAL
COMPLIANCE
ANTI-SKATING
ADJUSTER
POWER
REQUIREMENTS
POWER
CONSUMPTION
DIMENSIONS
WEIGHT
©
Aluminum
alloy
diecast
(310¢)
Direct
Drive,
Fully
Automatic
DC
Servo
Motor
33-1/3,
45
rpm
+
5%
0.047%
(DIN),
0.033%
(JIS)
45
dB
(DIN
A),
73
dB
(DIN
B),
48
dB
(JIS)
|
1000
Hz
+
0.12%
Static
Balanced
Type
220
mm
0
to
3
grams
4
to
12
grams
(include
shell
weight)
Oil
damped
15
mm
22°30'
+3°05’,
—1°13'
VM
Type
(Dual
Moving
Magnet)
(Model
AP-D40
does
not
include
cartridge)
5
mV
(DIN
45541)
More
than
20
dB
(DIN
45541)
2
grams
17.7
x
10°°
cm/dyn
29.1
x
10°
cm/dyn
Spring
Tension
120
V,
60
Hz
for
Canada
and
USA
220
V,
50
Hz
for
Europe
except
UK
240
V,
50
Hz
for
UK
and
Australia
110—120
V/220—240
V,
50/60
Hz
internally
switchable
for
the
other
countries
;
7
watts
440
(W)
x
140
(H)
x
403
(D)
mm
(17.3
x
5.5
x
15.8
inches)
5.9
kg
(13
Ibs)
*
For
improvement
purposes,
specifications
and
design
are
subject
to
change
without
notice.
a
2.
MODEL
AP-Q60/C
TURNTABLE
DRIVE
SYSTEM
AND
MECHANISM
MOTOR
SPEED
AND
PITCH
CONTROL
WOW
AND
FLUTTER
RUMBLE
SPEED
DEVIATION
TONE
ARM
EFFECTIVE
ARM
LENGTH
STYLUS
PRESSURE
ADJUSTMENT
RANGE
_
APPLICABLE
CARTRIDGE
WEIGHT
Aluminum
alloy
diecast
(3109)
Quartzs
Locked
Direct
Drive,
Fully
Automatic
DC
Servo
Motor
33-1/3,
45
rpm
+
5%
0.047%
(DIN),
0.033%
(JIS)
45
dB
(DIN
A),
70
dB
(DIN
B),
48
dB
(JIS)
Less
than
+
0.002%
Static
Balanced
Type
220
mm
0
to
3
grams
“4
to
12
grams
(include
shell
weight)
ARM
LIFTER
OVERHANG
OFFSET
ANGLE
HORIZONTAL
TRACKING
ERROR
ANGLE
CARTRIDGE
OUTPUT
VOLTAGE
CHANNEL
SEPARATION
OPTIMUM
STYLUS
PRESSURE
STATIC
VERTICAL
COMPLIANCE
STATIC
HORIZONTAL
COMPLIANCE
ANTI-SKATING
ADJUSTER
POWER
REQUIREMENTS
POWER
CONSUMPTION
DIMENSIONS
WEIGHT
Oil
Damped
15
mm
22°30’
+3°05',
-1°13'
VM
Type
(Dual
Moving
Magnet)
(Model
AP-Q60
does
not
include
cartridge)
5
mV
(DIN
45541)
More
than
20
dB
(DIN
45541)
2
grams
17.7
x
10°°
cm/dyn
29.1
x
10°
cm/dyn
Spring
Tension
120
V,
60
Hz
for
Canada
and
USA
220
V,
50
Hz
for
Europe
except
UK
240
V,
50
Hz
for
UK
and
Australia
110—120/220—240
V,
50/60
Hz
for
the
other
countries
8
watts
440
(W)
x
140
(H)
x
403
(D)
mm
(17.3
x
5.5
x
15.8
inches)
6.1
kg
(13.5
Ibs)
*
For
improvement
purposes,
specifications
and
design
are
subject
to
change
without
notice.
ll.
DISMANTLING
OF
UNIT
-
TURNTABLE
In
case
of
trouble,
etc.
necessitating
dismantling,
please
dismantle
in
the
order
shown
in
the
photographs.
Reassemble
in
reverse
order.
hl
BOTTOM
PLATE
SCREWS,
TABLE
SHEET
CONTROLS
1.
MODEL
AP-D40/C
2-2
woo
BON=>=
90
0
ONAARWN
Ss
STROBO
MARKINGS
SPEED
SELECTOR
SWITCH
(
SL
33
rpm,
«=
45
rpm)
BUILT-IN
STROBE
LIGHT
PITCH
CONTROL
KNOB
RETURN
KEY
POWER/MODE
SELECTOR
SWITCH
ARM
LIFTER
SWITCH
CARTRIDGE
SHELL
CARTRIDGE
RE-SETTING
SCREWS
CARTRIDGE
SHELL
FINGER
LEVER
.
SIZE
SELECTOR
SWITCH
.
LOCKING
NUT
.
TONE
ARM
.
TONE
ARM
RESET
AND
LOCK
18.
TONE
ARM
LIFTER
A
cartridge
is
not
included
with
AP-D40.
16.
17.
18.
19.
20.
21.
22.
23.
24.
25.
26.
27.
28.
O®
@@O0
©
©
Fig.
1
TONE
ARM
LIFTER
ELEVATION
ADJUSTMENT
SCREW
ANTISKATING
ADJUSTER
STYLUS
PRESSURE
SCALE
RING
MAIN
WEIGHT
HINGES
(for
Dust
Cover)
CAP
FOR
LEAD-IN.
AND
LEAD-OUT
ADJUSTMENTS
SCREWS
SPINDLE
OVERHANG
ADJUSTMENT
GROOVE
RUBBER
MAT
TURNTABLE
PLATTER
CARTRIDGE
SHELL
HOLDER
45
rpm
ADAPTER
HOLDER
LEAD-OUT
ADJUSTMENT
GROOVE
2.
MODEL
AP-Q60/C
oy
Gh
os
BORSS
OON
Og
PS
ONS
sae
SPEED
SELECTOR
SWITCH
(
M
33
rpm,
=
45
rpm)
LOCK-IN
QUARTZ
SWITCH
STROBE/SPEED
DISPLAY
PITCH
CONTROL
KNOB
RETURN
KEY
POWER/MODE
SELECTOR
SWITCH
ARM
LIFTER
SWITCH
CARTRIDGE
SHELL
CARTRIDGE
RE-SETTING
SCREWS
CARTRIDGE
SHELL
FINGER
LEVER
.
SIZE
SELECTOR
SWITCH
LOCKING
NUT
TONE
ARM
.
TONE
ARM
REST
AND
LOCK
15.
TONE
ARM
LIFTER
A
cartridge
is
not
included
with
AP-Q60.
AO
OOS
OS
16.
17.
18.
19.
20.
21.
22.
23.
24.
25.
26.
27.
_
28.
2\GeGQ_A®
@
Fig.
2
TONE
ARM
LIFTER
ELEVATION
ADJUSTMENT
SCREW
ANTISKATING
ADJUSTER
STYLUS
PRESSURE
SCALE
RING
MAIN
WEIGHT
HINGES
(for
Dust
Cover)
CAP
FOR
LEAD-IN
AND
LEAD-OUT
ADJUSTMENTS
SCREWS
SPINDLE
OVERHANG
ADJUSTMENT
GROOVE
RUBBER
MAT
TURNTABLE
PLATTER
CARTRIDGE
SHELL
HOLDER
45
rpm
ADAPTER
HOLDER
LEAD-OUT
ADJUSTMENT
GROOVE
jaErcnEEEnEnES
nn
nnn
nn
8
IV.
PRINCIPAL
PARTS
LOCATION
1.
MODEL.
AP-D40/C
INTERMEDIATE
RC
BOARD
ronpcpoarn
O84
REPEAT
901 owe
SWITCH
P.
REED
BD
-4056
§
MANUAL
SWITCH
POWER
SWITCH
|
CUT
SWITCH
NEON
LAMP
P.C
BOARD
SwW904
sws90!
sws02
APD-3056
ARM
POWER/MODE
=
PITCH_
CONTROL
LIFTER
SELECTOR
VR901
FUSE
RC
BOARD
MSOI
DDM-6C
POWER
TRA
APD-
3052
T9O1
APTS
D.D
SERVO
RC
BOARD
APD-3051
SPEED
SWITCH
SW
|
Fig.3
Bottom
View
2.
MODEL
AP-Q60/C
REED
SWITC
PC
BOARD
FG
SENSOR
RC_BOARD
POWER
TRANSFORMER
APD- 4056
APQ—5037
T901
APT50-
40
FUSE
RC
BOARD
INTERMEDIATE
P.C
BOARD
MOTOR
BLOCK
APD-
3054
M901
DDM~6C
APD-3052
ARM
POWER/MODE
|
PITCH
CONTROL
SPEED
SWITCH
|
QUARTZ
SERVO
RC
BOARD
LIFTER
SELECTOR
VR9OI
sw
:
APQ-5038
MANUAL
SWITCH
POWER
SWITCH
CUT
SWITCH
LED
RC
BOARD
QUARTZ
SWITCH
SW
904
Sw90l
sw
sws02
APQ-501!
Fig.4
Bottom
View
10
V.
VOLTAGE
AND
CYCLE
CONVERSION
POWER
TRANSFORMER
FUSE
RC
BOARD
110-l20V:
Fl
O4A
220-240V:
F2
O4A
Fig.5
VOLTAGE
CONVERSION
(U/T
only)
1.
VOLTAGE
CONVERSION
Models
for
Canada,
USA,
Australia
and
Europe
are
not
equipped
with
this
facility.
This
machine
can
be
set
to
110
—
120V/220
—
240V
as
required.
Each
machine
is
preset
at
the
factory
according
to
destination
but
if
voltage
change
is
necessary
it
can
be
accomplished
as
follows
only
by
qualified
personnel.
1.
Disconnect
power
supply
cord.
2.
Remove
the
bottom
cover.
3.
Remove
existing
Line
Voltage
Fuse
and
insert
required
Line
Voltage
Fuse
in
the
proper
fuse
holder
according
to
the
printed
instructions.
2.
CYCLE
CONVERSION
With
DC
servo
motor,
cycle
conversion
is
not
neces-
sary.
11
VI.
BLOCK
DIAGRAM
1.
MODEL
AP-D40/C
HOLE
MOTOR
ELEMENT
eS
ee
WAVE
CORRECTION
33-1/3
f=25Hz
THRESHOLD
a
CONTROL
45
f=32Hz
eee
ee
CONTROL
O
Q_0
0
O_O
45
+=
33-1/3
HOLE
ELEMENT
DRIVE
Bac
ie
+B
Fig.
6
2.MODEL
AP-Q60/C
45
==
33-1/3
=
STROBE
ea
4)
@
7.
Ye
+Bi
7
PLL
Ic
33-I/3
f
=100Hz
45
f
=|35Hz
SERENCE
vo
RES
ERENCE
PITCH
é—4--=
CONTROL
pees
QUARTZ
oe:
ee
Zi
‘lo
HOLE
ELEMENT
HOLE
ELEMENT
MOTOR
DRIVE
N
os
26
<
ag
Fig.
7
12
Vil.
EXPLANATION
OF
HOW
THE
DC
BRUSHLESS
D.D
MOTOR
WORKS
(a)
COIL
CURRENT
|
<——-
—__
+
CLOCK
-WISE
(b)
REVOLUTION
TORQUE
fo)
COUNTER
CLOCK-WISE
Fig.
9
Revolution
Torque
vs
Magnet
Polarity
Position
at
one
Phase
an
(a)
HALL
ELEMENT
OUT
PUT
=>
—
i2
>
(b)
COIL
CURRENT
i
|
=
CLOCK
-
WISE
(c)
REVOLUTION
O
TORQUE
|
COUNTER
CLOCK-WISE
Fig.
10
Each
Output
Waveform
vs
Position
of
Magnetic
Polarity
Fig.
8
shows
the
4
coils
and
the
2
Hall
elements
on
the
base
board.
Fig.
8
(a)
shows
the
motor
drive
system
and
the
magnet
which
face
the
coils.
The
magnet
is
magnet-
ized
into
6
poles
arranged
alternately
N/S.
Changes
in
the
sine
wave’s
magnetic
field
which
accom-
panies
revolution
of
the
magnet
are
detected
by
the
Hall
elements,
amplified
by
an
amplifier
generating
torque
which
is
supplied
to
the
coil
and
then
the
magnet
revolves.
When
sine
wave
current
flows
into
the
coil,
with
@
as
the
revolution
angle
and
K
as
a
fixed
value,
the
torque
force
T
is:
Ti
=Kei,
sin
30
2.
eee
ee
eee
eee
()
the
coil
current
i,
with
I
as
a
fixed
value
is:
Fd
oc:
a
a
(2)
so
from
1
and
2:
T,
SK
Sn?
30
hoes
eed
eases
(3)
Fig.
9
shows
the
changes
in
the
coil
current
i,
and
the
torque
T;
accompaning
changes
in
the
revolution
angle
6.
A
clockwise
revolution
torque
is
produced.
Also
the
coil’s
other
phase
is
out
90°
electrically.
As
the
phase
of
the
magnetic
field
detected
by
the
Hall
element
is
also
90°
out,
the
current
flowing
to
this
coil
is:
ip
ST
ead
assent
ied
tens
(4)
the
generated
torque
T2
is
Tz
=Krin
coS30
2...
ee
ee
eee
(5)
so
from
4
and
5:
T,
=
Kel*cos*
30
ii
aensa
deed
a4
(6)
Fig.
10
shows
the
relationship
between
the
output
from
the
two
Hall
elements,
current
i,
and
i,,
and
the
generated
torque
T,
and
T..
The
total
torque
generated
is
the
sum
of
torques
T,
and
T..
This
torque
To
is
Ty
=T,
+T2
=K°I
(sin?
36
+
cos?
36)
=K-I
As
shown
in
Fig.
10.
To
is
fixed
regardless
of
the
revolu-
tion
angle
6.
a
14
WORKS
Vili.
EXPLANATION
OF
HOW
THE
SERVO
CIRCUITRY
1.
MODEL
AP-D40/C
(Refer
to
the
schematic
diagram.)
TRI
THRESHOLD
LEVEL
(a)
icl
2
0
{
i
|
I
I
I
!
|
i
i
'
|
I
TRI
(b)
COLLECTOR
oO
TR2
(c)
BASE
fe)
TR3
(d)
BASE
f
$25Hz
(33-1/3rpm)
f
=32Hz
(45
rpm)
TRS
THRESHOLD
LEVEL
TRS
(e)
BASE
A
Z
TRS
|
|
| |
(f)
COLLECTOR
Oo
L
A
|
ae
bs
[Ys
-——
TRIO
(h)
BasE
oo
The
FG
signal
obtained
from
the
motor
block
print
coil
is
amplified
by
IC1
and
added
to
TR1’s
base.
When
the
FG
signal
passes
TR1’s
threshold
level.
TR1
goes
on
and
waveform
(b)
appears
in
the
collector.
Differentiated
by
C4
and
R7,
the
positive
pulse
of
the
differential
signal
turns
on
TR2.
As
a
result
the
integral
waveform
of
waveform
(d),
with
C5’s
current
curve,
appears
in
TR3’s
base.
TR5
only
goes
on
once
the
threshold
level
of
waveform
(d)
has
been
passed
and
then
waveform
(f)
appears
in
TR5’s
collector.
The
voltage
of
C6’s
two
terminals
is
as
with
the
waveform
(g).
This
is
because
current
flows
in
C6
during
the
period
of
waveform
(f)
only,
regardless.
.
This
signal
(waveform
g)
passes
IC
1’s
low
pass
filter,
makes
a
DC
control
signal
and
becomes
TR10’s
bias
voltage.
As
a
result,
collector
current
flows
into
TR10
and
control
current
into
the
Hall
elements
H1
and
H2.
Fig.
11
When
the
speed
is
faster
than
fixed,
the
period
of
FG
signal
shortens
and
the
pulse
width
¢
decreases,
Consequently
waveform
(g)’s
voltage
drops
as
does
the
base
bias
of
TR10.
Then
the
current
to
the
Hail
.
elements
is
reduced,
the
motor
torque
is
weakened
and
the
speed
slows
down,
or
in
other
words
the
speed
of
revolution
is
maintained
at
a
fixed
rate.
When
the
speed
slows,
the
period
of
FG
signal
lengthens
and
th
pulse
width
¢
increases.
Then
the
current
in
the
Hall
elements
is
increases,
and
the
motor
torque
strengthened.
In
this
way,
the
speed
is
cotrolled
at
a
fixed
rate.
Pitch
control
is
the
changing
of
TR3’s
emitter
potential.
by
the
changes
of
TR4’s
base
bias.
As
a
result,
the
threshold
level
of
waveform
(d)
is
raised
and
the
pulse
width
changed.
In
this
way,
the
Hall
element
current
can
be
con-
trolled
and
the
speed
changed.
15
2.
MODEL
AP-Q60/C
(Refer
to
the
schematic
diagram.)
Fe
SS
SS
SS
SS
SS
ye
7
|
@5)
TP2
I
I
xf
osc
72
<r
|
@6)
FG
IN
@
|
j
(4)
33
ee
|
(5)
45
ey
STR
OBO
(7)
(6)
33/45
OUT
]
|
so)
$i
(9)
|
$2(0)
{
$3q)
|
$42
|
1
|
|
|
TPI@3)
|
|
|
@?)
LOCK
|
l
|
|
|
|
|
|
|
|
|
|
|
|
|
I
|
|
|
|
ves-P
C1)
SAMPLE
SAMPLE
@l)Vec-F
&
&
ve6-IP
(8)
HOLD
HOLD
@4)Vec
-
IF
|
|
|
|
|
!
L_@--©--
@
--©---©--@---@
-@--@—----
Vss VGG
Voo
APC
OUT
P-Ci
P-C2
F-Cr
F-C2
AFC
OUT
Fig.
12
The
AP-Q60
has
a
photo
sensor
which
picks
up
the
FG
signal
from
the
stroboscope
pattern
on
the
underside
of
the
platter
in
order
to
detect
the
speed.
The
servo
circuit
also
employs
PLL
LSI
AP400A
for
motor
control
and
it
is
a
quartz
lock
system.
AP-400A
is
an
N
channel
silicon
gate
MOS
type
LSI
which
has
been
developed
for
speed
control
of
quartz
lock
DD
motors.
In
Fig.
12’s
block
diagram
and
Chart
1,
the
relation-
ship
between
the
terminal
signal
and
operation
mode
is
shown.
AP-400A
outputs
voltage
proportionate
to
the
number
of
revolutions
(AFC-OUT),
and
voltage
proportionate
to
the
phase
(APC-OUT).
The
FG
signal
input
from
the
FG
sensor
enters
the
base
of
TR2,
is
rectified
and
then
enters
AP-400A’s
FG
IN
terminal.
Next
there
is
a
5.4
MHz
oscillation
by
C1
and
the
X’tal
(5.4
MHz)
which
is
scaled
down
to
1/2
by
the
T-Flip
Flop.
This
scaled
down
signal
of
2.7MHz
is
the
standard
frequency
and
is
input
into
AP-400A’s
XT
terminal.
A
voltage
proportionate
to
the
number
of
revolutions
is
put
out
from
AFC-OUT
and
another
voltage
pro-
portionate
to
the
phase
appears
in
APC-OUT
due
to
AP-400A.
When
the
quartz
lock
is
on,
these
AFC-
OUT
and
APC-OUT
voltages
are
compared
and
amplified.
Next
they
pass
a
low
pass
filter
and
are
made
into
a
DC
control
signal
of
the
TR6’s
base
bias.
As
a
result,
the
collector
current
flows
and
the
Hall
element
current
is
controlled.
When
the
quartz
lock
is
off,
a
standard
voltage
from
R26
and
R27
and
the
AFC-OUT
voltage
are
com-
pared
and
amplified
and
the
Hall
element
current
is
controlled.
Pitch
control
controls
the
speed,
changing
the
AFC-OUT
voltage
by
changing
the
VGG-F
addition
voltage.
i
ee
ec
eae
Sa
16
Teer
Supply
terminal
giving
a
high
level
of
output
voltage
for
APC-OUT.
Terminal
connecting
2.7
MHz
X’tal
at
FG
=
180
pulses/1
revolution.
33
IN
4
Terminal
selecting
the
speed,
has
built-in
pulll
up
resistors
becoming
active
at
45
IN
5
“L”
level.
33/45
OUT
a
ae
Becomes
“L”
level
when
set
to
33-1/3
rpm.
Strobe
signal
output
terminal
and
duty
is
1/10.
Output
frequency
is
the
same
as
that
of
the
input
pulse
FG-IN
from
the
motor
when
the
speed
is
accurate.
Input
signal
terminal
for
minute
adjustment.
32
step
speed
control
possible
in
steps
of
0.2%
by
5
bit
binary
code.
Test
point
at
APC
sampling
signal
output
terminal.
GND
terminal.
Supply
terminal
12v*1¥
Terminal
for
condenser
connection
to
generate
APC
circuit
saw
waves.
ee
Terminal
for
condenser
correction
to
store
APC
sampling
voltage.
Terminal
to
control
APC
circuit
saw
wave
tilt.
APC
output
voltage
terminal.
AFC-OUT
AFC
output
voltage
terminal.
VoGc-F
21
Supply
terminal
giving
a
high
level
of
output
voltage
for
AFC-OUT.
FC,
22
Terminal
for
condenser
connection
to
generate
AFC
circuit
saw
waves.
FC,
23
Terminal
for
condenser
connection
to
store
AFC
sampling
voltage.
24
Terminal
to
control
AFC
circuit
saw
wave
tilt.
Test
point
at
AFC
sampling
signal
output
terminal
J
i
N
N
WN
FG-IN
26
Terminal
inputting
pulses
to
correspond
to
motor
speed.
LOCK
©
7
Outputs
“L”
level
when
the
motor
is
PLL
locked.
Inside
is
an
open
in
MOS
FET
and
the
LEDs
can
be
directly
driven.
Supply
terminal
SV
+
0.5V
<
~)
iw]
;
oo
vn
Chart-1
17
aggsseitl
ce
SANTISKATING
ADJUSTER
sure
Adjustment
1.
Disconnect
the
Power
Cord.
6.
Turn
Main
Weight
counter-clockwise
(as
viewed
2.
Set the
Tone
Am
Lifter
switch
to
W..
from
the
front)
with
the
Stylus
Pressure
Scale
3.
Bring
the
Tone
Arm
to
a
position
between
the
Ring
until
the
marker
on
the
weight
shaft
corre-
tumtable
and
the
Tone
Arm
Rest
without
touch-
sponds
to
the
desired
stylus
pressure
on
the
scale.
ing
either.
NOTE
1.
AP-D40,
AP-Q60
Black
and
Silver
Panel
4.
Rotate
Main
Weight
backwards
and
forwards
until
Models
do
not
come
equipped
with
the
Tone
Arm
is
in
perfect
horizontal
balance.
Cartridges.
(Zero
balance
is
attained.)
2.
The
recommended
stylus
pressure
for
CAUTION
1.
Be
sure
that
Anti-skating
Adjuster
is
the
supplid
stylus
(AP-D40C,
AP-Q60C
set
to
zero.
only),
RS-90
is
2
grams.
However,
in
the
2.
Remove
the
stylus
guard
and
be
care-
case
of
outside
interference,
more
pres-
ful
not
to
damage
the
stylus.
sure
may
be
needed
for
stability.
5.
Without
moving
the
Main
Weight,
turn
only
the
The
range
of
adjustment
is
from
0
to
3
Stylus
Pressure
Scale
Ring
to
match
the
“0”
mark
Sans:
:
with
the
marker
on
the
weight
shaft.
(Refer
to
7.
Set
the
Anti-skating
adjuster
to
correspond
with
Fig.
13)
the
stylus
pressure.
(Fine
adjust
if
necessary.)
2.
OVERHANG
ADJUSTMENT
iY
©
SPINDLE
@
GROOVE
Fig.
14
Overhang
Adjustment
The
distance
from
the
turntable
shaft
to
the
stylus
when
the
Tone
Arm
is
at
the
center
of
the
turntable
is
called
overhang.
Although
overhang
is
preset
at
the
factory
for
this
model,
when
the
cartridge
is
replaced,
adjustment
may
be
necessary.
For
your
convenience,
the
rubber
tumtable
mat
has
an
indicator
groove
at
the
center
for
easy
overhang
adjustment.
Bring
the
Tone
Arm
to
the
center
of
the
turntable.
Adjust
the
cartridge
position
in
the
cartridge
shell
so
that
the
stylus
position
is
even
with
the
middle
groove
ring
at
overhang
adjustment
position.
The
cartridge
position
is
adjustable
by
resetting
the
screws
of
the
cartridge
shell.
19
3.
ARM
LIFTER
ADJUSTMENT
ARM
LIFTER
ELEVATION
KNOB
ELEVATION
LEVER(A)
SCREW(b)
ELEVATION
SHAFT
ELEVATION
LEVER(B)
SCREW(a)
RETURN
LEVER
Fig.
15
Fig.
17
1.
Adjust
with
the
elevation
control
and
the
arm
lifter
should
be
down.
Confirm
that
the
elevation
shaft
and
lifter
lever
are
touching.
If
not,
press
the
arm
lifter
down
with
one
finger
until
they
do.
Adjust
screw
(a)
at
exactly
the
point
where
the
gap
A
between
the
elevation
lever
(B)
and
the
elevation
control
disappears.
(Refer
to
Fig.
15).
2.
Next
operate
the
auto
return
(turn
the
main
gear
by
hand)
and
raise
the
arm
lifter.
With
the
ele-
vation
control
at
V.,
adjust
screw
(b)
at
exactly
the
point
where
the
gap
(B)
between
the
shaft
pin
and
the
elevation
lever
(A)
disappears.
(Refer
to
Fig.
16).
3.
Put
a
record
on
and
set
the
elevation
control
to
vy.
Adjust
screw
(a)
until
there
is
an
8mm
gap
Fig.
18
between
the
tip
of
the
stylus
and
the
surface
of
the
record.
(Refer
to
Figs.
17,
18)
a
20
This manual suits for next models
3
Table of contents
Other Akai Turntable manuals
