Akai AP-A510 User manual

AKAI senwce manunt
SEMI AUTOMATIC TURNTABLE
mov. AP-A510/C
MODEL AP-A305/C

SAFETY INSTRUCTIONS
SAFETY CHECK AFTER SERVICING
Confirm the specified insulation resistance between power cord plug prongs and externally exposed parts of the set is
greater than 10 Mohms, but for equipment with external antenna terminals (tuner, receiver, etc.) and is intended for
or [A] , specified insulation resistance should be more than 2.2 Mohms (ground terminals, microphone jacks
3
headphone line-in-out jacks etc.)
PRECAUTIONS DURING SERVICING
1,
Oo CON OD
Parts identified by the L\ symbol parts are critical for safety.
Replace only with parts number specified.
In addition to safety, other parts and assemblies are specified for conformance with such regulations as those
applying to spurious radiation, These must also be replaced only with specified replacements.
Examples: RF converters, tuner units, antenna selector switches, RF cables, noise blocking capacitors, noise
blocking filters, etc.
Use specified internal wiring. Note especially:
1) Wires covered with PVC tubing
2) Double insulated wires
3) High voltage leads
Use specified unsulating materials for hazardous live parts. Note especially:
1) Insulation Tape
2) PVC tubing
3) Spacers (Insulating Barriers)
4) Insulation sheets for transistors
5) Plastic screws for fixing microswitch (especially in turntable)
When replacing AC primary side components (transformers, power cords, noise blocking capacitors, etc.), wrap
ends of wires securely about the terminals before soldering.
c> >
Observe that wires do not contact heat producing parts (heatsinks, oxide metal film resistors, fusible resistors, etc.).
Check that replaced wires do not contact sharp edged or pointed parts.
Also check areas surrounding repaired locations.
Use care that foreign objects (screws, solder droplets, etc.) do not remain inside the set.
VOLTAGE CONVERSION (AP-A305/C only)
Each
machine
is
preset
at
factory
according
to
its
destination,
but
some
machines
can
be
set
to
110V-120V
or
220V-240V
as
required.
If your machine’s voltage can be converted:
Before connecting the power cord or assembling the platter turn the Voltage Selector located on the top of the
cabinet with a screwdriver until the correct voltage is indicated.
Models for USA, Canada, Europe, UK and Sustralia are not equipped with this facility.
NOTE: Cycle conversion is unnecessary since AP-A510/C use a DC motors.

|. SPECIFICATIONS
MODEL AP-A305/C
MOTOR DC E.G MOTOR
SPEED 33-1/3 & 45 rpm
WOW & FLUTTER 0.09% (WRMS)
RUMBLE 60dB (DIN-B)
CARTRIDGE PC-35
OUTPUT VOLTAGE 4mV STYLUS RS-33
CHANNEL SEPARATION 20dB
CHANNEL BALANCE Less than 2dB
EFFECTIVE ARM LENGTH 90mm
POWER REQUIREMENTS 120V, 60Hz for USA & Canada
220V, 50Hz for Europe
240V, 50Hz for UK & Australia
110V/120V-220V/240V,50/60Hz
Convertible for other countries
DIMENSIONS 425(W) x 105(H) x 345(D)mm
16.7(W) x 3.9(H) x 13.6(D) Inches
WEIGHT
MODEL AP-AS510/C
DC E.G MOTOR
33-1/3 & 45 rpm
0.09% (WRMS)
60 dB(DIN-B)
Moving Magnet Type ((4P|T ype)
STYLUS RS-33
Less than 2dB
425(W) x 105(H) x 345(D)mm
16.7(W) x 3.9(H) x 13.6(D) Inches
* For improvement purposes, specifications and design are subject to change without notice.
ll. DISMANTLING OF UNIT |
In case of trouble, etc. necessitating dismantling, please
dismantle in the order shown in the photographs.
Reassemble in reverse order.
t DUST COVER
RUBBER MAT

lil. CONTROLS
DUST COVER
TONE ARM REST
RUBBER MAT
DAMPED CUE CONTROL
TONE ARM and
CARTRIDGE/HEAD SHELL
SPEED SELECTOR
(33-1/3
and
45rpm)
MANUAL
CUT/RETURN
BUTTON
Fig. 3-1
IV. PRINCIPAL PARTS LOCATION
MOTOR
P.C. BOARD
MOTOR
—
We
PHONO
POWER P.C. BOARD
P.C. BOARD
VOLTAGE SELECTOR MICRO SWITCH
MODEL ONLY
MODEL AP-A305/C
MOTOR
P.C. BOARD
MOTOR
MB PHONO
| P.C. BOARD
MODEL AP-A510/C Fig.4-]

V. ADJUSTMENT
1. SPEED ADJUSTMENT (Refer to fig. 5-1)
(1) Set the speed selector to 33-1/3 rpm. @ e
(2) Play back the test record (1000Hz 33-1/3 rpm), and C)
adjust VRI so that the speed is 1000Hz. iN ee = er
(3) Set the speed selector to 45 rpm. 7O° 7
(4)
Play
back
the
test
record
(1000Hz
45
rpm),
and
ad-
just
VR2
so
that
the
speed
in
1000Hz.
NOTE: This speed adjustment should be adjust 33-1/3
rpm position first then adjust 45 rpm next.
Fig.5-1
2. AUTO RETURN ADJUSTMENT
(Refer to Fig. 5-2)
(1) If the Tone Arm returns to early or does not return
at all, Open the Bottom cover and adjust the auto re-
turn point as follows.
(The location of auto return is within 54-64mm
from the center spindle.)
(2) Adjust the Cam in the hole located at the right side
of Tone Arm after locking Tone Arm to the ARM
REST.
a) Counter clock wise: Auto return point to the out
side of record.
b) Clock wise: Auto return point to the center of re-
cord.
(DRIVER)
3. PICK-UP HEIGHT ADJUSTMENT
All models include AUTOMATIC RETURN at the end of a record, actuated by levers and cams.
The
destance
between
pickup
stylus
and
top
surface
of
a
record
in
the
arm
return
mode
is
typically
5/32-15/32
inch
(4-12mm).
Adjustment of this elevation is accomplished by means of cam screw (see Fig. 5-3).
4
—
Beal
OF
Fe
|
Fig. 5-3

VI. PARTS LIST
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FINAL ASSEMBLY BLOCK

MODEL AP-A510/C
1-15
TP-729081 ZFELEVATION ARM
£S-718244 SW MICRO AH-4700
MV-269965 OSTL
B3ALL 40
TP=7 20030 ARM STAND
3M-718340 M390
MOTOR BLK AP-
SA-720979 FOOT
CR-WRT AP-M300
BELT
M3-713346
ZWw-713553 CORD PHONO AP-A1509
POWER DC AP-M300
CORD
2 W-718349
COVER ASSY AP-A159
20-718549
DUST
TPS (T3552 HINGE ASSY AP=-A159
MAIN GEAR BLK AP-M512-C3
TP=7 20066
SPEED SW ASSY AP=-A150
ES=7 1501
TP=T20907E FEED ARM ASSY AP-4519
TP 720075 ASSY AP-A156
SPINDLE
TONE ARM ASSY AP=-A159
IC LA5515
MODEL AP-A305/C
TP=720081 ELEVATION ARM
ES-718554 SW MICRO AH-47009
MV-269965 BALL 4OOSTL
TP-720980 ARM STAND
BM-718340 MOTOR BLK AP=-M300
SA-720079 FOOT
M3-718346 QELT CR-WRT AP-M300
£W-718568 CORD PHONO AP=-A101
EW-718564 AC CORD KKP-10
3C-713549 DUST COVER ASSY AP-A1S0
TP-718552 HINGE ASSY AP-A150
TP-720064 MAIN GEAR BLK AP=M512-CB
ES-713551 SPEED SW ASSY AP-A150
T2-720078 FEED ARM ASSY AP=A510
TP-720075 SPINDLE ASSY AP-A150
TP-718550 TONE ARM ASSY AP-A150
EF-339905 A FUSE SEMKO T 250V 290MA
£0-511097 A D SILICON 1N4901 50/1.0A
37T-718559 A TRANS POWER BM-3202U
El-720069 IC LA5515

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PCB
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PHONO
PCB
SPEED
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