Pioneer PL-5 User manual

Service
AL ETAIEY|
REPAIR
&
ADJUSTMENTS
ORDER
NO.
ART-705-0
STEREO TURNTABLE
L=-5
PL-420
MODEL PL-5 COMES IN FOUR VERSIONS DISTINGUISHED AS FOLLOWS:
Voltage Remarks
120V only U.S.A. model (Without cartridge)
120V only Canada model (Without cartridge)
110V—120V/220V—240V (Switchable) | General export model
110V—120V/220V —240V (Switchable) U.S. military model
MODEL PL-420(which is minor change in design from PL-5) COMES IN THREE VERSIONS
DISTINGUISHED AS FOLLOWS:
Voltage Remarks
120V only U.S.A. model
110V—120V/220V—240V (Switchable) General export model (Without dust cover)
110V—120V/220V—240V (Switchable) U.S. military model (Without dust cover)
= This is the service manual for model PL-5/KUT. For servicing of the other types,
please refer to the additional service manual.
= Ce manuel d’instruction se refére au mode de réglage, en francais.
= Este manual de servicio trata del método de ajuste escrito en espanol.
e For the circuit and mechanism descriptions, please refer to the supplement of model
PL-7 service manual (ART-768).
Ne ne at ees
PIONEER ELECTRONIC CORPORATION 4-1. Meguro 1-Chome, Meguro-ku, Tokyo 153, Japan
U.S. PIONEER ELECTRONICS CORPORATION 8&5 Oxford Drive, Moonachie, New Jersey 07074, U.S.A.
PIONEER ELECTRONIC (EUROPE?) N.V. Luithagen-Haven 9, 2030 Antwerp, Belgium
PIONEER ELECTRONICS AUSTRALIA PTY. LTD. 178-164 Boundary Road, Braeside, Victoria 3195, Australia
FU©®MAY 1981 Printicd in Japan
ag era

CONTENTS
1. SPECIFICATIONS .... 2.0.02. 022 eee eee 2
2. FRONT PANEL FACILITIES.............. 3
3. DISASSEMBLY ........ 200. e eee eee 4
4. TROUBLESHOOTING ..........- 202s 7
5. PRECAUTIONS FOR REASSEMBLY........ 14
6. P.C. BOARDS CONNECTION DIAGRAM..... 17
7. SCHEMATIC DIAGRAM .............0055 19
1. SPECIFICATIONS
Motor and Turntable
Drive System .....0.. 0.000 ccc cece eee eee eee Direct-drive
MOTOR sic ins tee cota Mt tee Salle tte sl del ah fangs) wha, LESS DC servo motor
Turntable Platter ......... 310mm diam. aluminum alloy die-cast
SPECS? ooe.ns Sesh evn ole wescbile dd vee wi scouts nace er ees 33-1/3 and 45rpm
Wow and Flutter ......... 0.00000 ee Less than 0.025% (WRMS)
Signal-to-Noise Ratio................ More than 78dB (DIN-B)
(with Pioneer cartridge model PC-3MC)
Tonearm
TEV DO: 5.220 yalens ccseiece steve oa Static-balance type, Straight pipe arm
Effective Arm Length. ........ 0.0000 e eee ee eee 221mm
Overhang.: cccies-os conse tnead whee ee ble wa ad eae 15.5mm
Usable Cartridge Weight..............-. 3g (min.) to 8g (max.)
Subfunctions
Full auto mechanism, Anti-skating force control, Stylus pressure
direct-readout counterweight, Cueing device, Strobe light, Free stop
hinges
8. BLOCK DIAGRAM...............0005. 21
9. ELECTRICAL PARTS LIST.............. 22
10. PACKING .. 0... cc eee es 23
11. EXPLODED VIEWS ...............0005 23
12. ADJUSTMENTS. ........ 0.00000 cee 29
REGLAGE Cae teAE Ghee dated ah 31
ASUST Ee seo ee Be ee ee es eit ae 33
Miscellaneous
Power Requirements... 2... 0. eee ee AC120V, 60Hz
Power Consumption .......... 0000 ee eee eee QW
Dimensions ............. 420(W) X 108(H) x 367(D)mm
16-1/2(W) X 4-1/4(H) X 14-7/16(D)in.
WIGHT 26 405 ee ew: BS ob Nee oo Be a GE SS 5.9kg/13 Ib
Accessories
EPL AGaDtel” ictese soe. ea Geta ee oats oh ole ee RA shee Bia Paes 1
Operating Instructions
NOTE:
Specifications and design subject to possible modification without
notice, due to improvements.

2. FRONT PANEL FACILITIES
@START/STOP switch
Depress this switch when starting auto play or when
stopping play.
(2) REPEAT switch
Set this switch for repeat play.
(3) DISC SIZE switch
Set this switch in accordance with the size of the record
which is to be played.
[7° 17] (released position):
[12’’ 30] (depressed position) :
(4) Speed check window
Look through this window and observe the movement
of the striped pattern when checking the rotational
speed or finely adjusting the speed. The position of the
striped pattern differs according to the power line
frequency (50 Hz or 60 Hz) in the area of use and the
speed (33 or 45 rpm) of the platter.
Top pattern: For 45 rpm in 50 Hz area
Second pattern: For 45 rpm in 60 Hz area
Third pattern: For 33 rpm in 50 Hz area
Bottom pattern: For 33 rpm in 60 Hz area
()SPEED ADJ control
Rotate this control in order to finely adjust the speed
of the platter.
The speed is reduced when the control is rotated in the
[~] direction.
The speed is increased when the control is rotated in
the [+] direction.
@® SPEED switch
Set this switch in accordance with the speed of the re-
cord which is to be played.
[33] (depressed position): For 33-1/3 rpm records
[45] (released position): For 45 rpm records
For 17 cm EPs
For 30 cm LPs
O8O®8
@ Cartridge
(8) Headshell
Q) Tonearm
40) ARM ELEVATION lever
Operate this lever when starting manual play or when
temporarily suspending play.
a) ANTI-SKATE control
This is rotated when performing the antiskating adjust-
ment.
(2 Arm rest
This serves to hold and clamp the tonearm. When
moving the tonearm, release the clamp
(13) Tracking force adjustment weight
This is used when adjusting the tracking force.
(4) Platter
(15) Platter mounting shaft
Rubber mat
47) EP adapter
This is used when playing records withouta ‘” middle.”’
(8) Cabinet
Dust cover

3. DISASSEMBLY
3.1 PANEL AND BASE
In removing the panel, follow the below listed
steps in the order given. Using any unnecessary
force will result in bending the springs or damaging
other parts.
Panel removal steps
1. Remove the headshell and weight assembly,
and the weight shaft assembly.
The weight shaft assembly is removed by
loosening screw (Hexagone socket screw) and
the headshell by loosening screw @.
2. Lift off the turntable platter.
Turntable platter
Panel
Dust cover
. Loosen insulator attachment screws @ and
remove the insulator. (Do not mix the color-
coded float springs. They must be replaced
with their original insulators during reassemb-
ly.)
. Set the record size selector switch to “‘30cm’’.
. Release the arm clamp and move the tonearm
as far as it will go toward the center. Then
rotate the motor center shaft clockwise return-
ning the tonearm to the arm rest. Stop the
center shaft.
. Remove the rear panel PU cord strain relief.
Weight assembly
Saen Rubber
52- Weight shaft assembly
\ Ground ‘wire
Control mechanism section
Fig. 3-1 Disassembly

7. Lift the front section of the panel (operating
controls) very slightly and make sure the slider
and spring is disengaged from the selector
lever. If the spring is caught on something,
use a long and thin screwdriver and free the
spring from the large center opening.
8. Unplug the 2P and 5P connectors.
9. Completely remove the PU cord from the panel.
10. Lift up the headshell end of the tonearm,
and taking care not to damage the tonearm,
remove it from the panel. (Hold the tonearm
steady.)
3.2 D.D MOTOR ASSEMBLY
After the panel has been removed, loosen the
three motor attachment screws @ and remove
the motor.
3.3 TONEARM SECTION
Remove the tonearm section by taking out the
three arm base attachment screws @ and one
ground wire securing screw @.
3.4 CONTROL MECHANISM SECTION
After
the
tonearm
section
has
been
removed,
loosen
the
three
control
mechanism
attachment
screws
@
and
remove
the
assembly.
Screwdriver
3.5 TONEARM
1. Disconnect the tonearm lead wires from the
PU board (See Fig. 3-2).
Note that some of the lead wires have been
soldered to the PU board, and must be discon-
nected with care.
2. Loosen the set screw @ with a screwdriver to
remove the PU plate under the arm base
(See Fig. 3-3).
3. Undo the screw @ securing the tonearm to the
arm base (See Fig. 3-3).
Tonearm
lead wires
Fig. 3-2 Disconnect the tonearm lead wires
PU plate
Fig. 3-3 Remove tonearm

Driver lever
spring
3.6 PANEL AND BASE REASSEMBLY
1. Turn the center shaft clockwise so that the
mechanism assembly is set to the reset posi-
tion.
Hook the driver lever spring to the panel boss.
Lift the forward of the panel and plug in the
2P and 5P connectors.
Clamp the tonearm in the arm rest and push
the START/STOP button.
Driver lever
Fig. 3-4 Spring positioning
. Attach the PU cord stopper.
. Attach the insulators. (Make certain the color-
coded float springs are attached to the correct
insulators.)
. Attach the weight shaft assembly.
Start Jever
Driver lever spring
Fig. 3-5 Positioning the spring

4. TROUBLESHOOTING
Use the following directions to find the cause of
each type of breakdown. Improper adjustment
units should be completely readjusted.
=# DOES NOT LEAD IN
Motor does not rotate.
YES
Arm clamp is not released.
m ”
Depression in EV rubber sheet.
YES
Tracking force is too heavy.
YES
Insufficient torque on the lead-in
latch. (See section 1)
YES
PU plate is not properly attached.
a
Oo Oo m
n
2
1)
oo | 2) m
vU m > =
Repeat switch is not ON.
YES
The start lever unit pin is separated
from the driving lever unit section.
(See section 2)
Control lever SP is weak.
Section 2
As shown in figure 4-2, if the start lever unit
Pin is out of line in the direction of @ , repeat will
not operate. If it is too far in the direction of ;
the unit will not start. In these cases, assemble
referring to the method of joining the panel and
bottom panel (lid).
NO Refer to the ‘‘Motor does not rotate”
section.
Section 1
As shown in figure 4-1, if the forre requirea
to turn over the lead-in latch is less tha 1 80g ata
point 13mm from the center, bend tke click leaf
spring toward until the force is 180 — 320g.
Lead-in—|3™.
latch
,,) Bend
“(180 — 3204)
Click leaf spring
EV cam
Fig. 4-1 Adjustment of lead-in latch with isu fficient
torque
Driving lever (B
® oA Pin
Driving leveispr- ing
Surface AX
a
Set
;
Control!
U
Start
lever
unit
base
Fig.
4-2
Misaligned
pin
of
start
lever
init

= REPEAT FUNCTION IS REPEATED
Separate the panel section and bottom panel
and, as shown in figure 4-3, apply a tension of
10g to the start lever unit pin in direction(A) If
the repeat function operates, the selector and reset
plate sections are not moving properly. If the unit
stops, the driving lever (B) is not moving properly.
Driving lever (B) is not moving pro- NO
perly.
YES
Start lever is not moving properly. NO
YES
Selector is not moving properly. NO
(See section 3)
YES
Reset plate is not moving properly. NO
(See section 4)
YES
Reset plate SP is weak.
Section 3
If
there
are
protrusions
remaining
from
the
original-pressing
process
on
surfaces
@),®),
and
©of
the
sub-panel
which
slides
with
the
selector,
the
movement
of
the
selector
will
be
adversely
affected.
Therefore,
these
protrusions
must
be
removed
(Fig.
4-4).
Section
4
If there are plastic protrusions on the pressure
pin section of section (D) of the reset plate, these
protrusions will come in contact with the lower
surface of the driving panel when the reset plate
moves in direction (E) and the movement of the
reset plate will be adversely affected. Therefore,
these
protrusions
must
be
removed
(Fig.
4-4).
= AUTO-RETURN DOES NOT WORK
Section 5
After performing the return operation, if the
curved section of the signal plate and curved sect-
ion of the starting plate are not in contact with
surfaces ‘A) and (B) respectively of the cam, reset
will be incomplete and the starting position will
be late. As a result, the return function may not
operate at times. In this case, bend the signal
plate (C)so that dimension A is 0.5mm or larger.
4)
Sub-panel
Start
lever unit
Fig. 4-3 Check of repeat operation.
Driving lever (B) shaft is bent.
Start lever is warped.
Plastic protrusions on cut surfaces of
the sub-panel of the selector slide
section.
Protrusions on reset plate pressure
pin.
® Sub-panel
(2e>
m SON
@® Lv
\C MINS Reset plate SP
20
. So Reset
o= plate
Fig. 4-4 Improper movement of selector
Signal plate
Starting plate
TOO least 0.5mm
Cam
Fig. 4-5 Incomplete reset of starting and signal plates

Change in starting position adjust-
ment.
YES
Starting plate does not follow the NO Too much grease between the signal
signal plate. plate and the cam.
YES
Inner diameter of the starting plate
hole is small.
Protrusions on the caulk section of
the starting plate hole.
Not enough grease between the
starting plate and signal plate.
i
After starting, incomplete reset of the NO The curved section of the signal
signal plate. (See section 5) plate is deformed.
YES
The inner areas of records can not 7 ;
be-tracked. Arm lead wire is caught on something.
YES
PU cord is touching the PU plate.
Operator of the detection lever is
not smooth.
i
Looseness in the PU plate attach-
ment.
= RETURN IS FAST (RETURN AT 1mm PITCH)
Protrusions on the pinion gear section
(See section 6)
Section 6
If there are rough areas of plastic protruding
from the (A) section of the protruding section of
the pinion gear, the return function may operate
at a pitch of only 1mm. In this case, remove the Fig. 4-6 Elimination of pinion
plastic
protrusions
completely
(Fig.
4-6).
gear
protrusions
Pinion geai
Protruding
section

= TONEARM DOES NOT LOWER IN CORRECT POSITION
Incorrect adjustment.
YES
PU plate operation is not smooth.
PU lever A and PU lever B are not
moving smoothly.
Location of stylus was changed
during cartridge replacement.
= RECORD SIZE SELECTOR DOES NOT WORK
Tonearm descends at 17cm location when
record size selector is set at 30cm.
Size select SP is warped.
YES
Size select lever does not operate Size select lever is warped
smoothly. :
Tonearm descends at 30cm location when record
size selector is set at 17cm.
Size select return SP is warped.
YES
Plastic protrusions in auto-stop
mechanism resin section of the select
lever sliding surface.
Select lever does not operate smooth-
ly.
Plastic protrusions on the select lever.
Index cam does not operate smoothly. = Sapte ped sheoked Secnen
YES
Size select SP is weak. |
# MOTOR DOES NOT ROTATE
2P or 5P connectors are not at-
tached.
YES
Connector(s) is not properly installed.
10

=» WITH THE RECORD SIZE SET AT 17cm, THE TONEARM IS
RETURNED TO THE ARM REST.
Detector lever and signal lever are
touching.
Detector lever is bent.
= AUTO OPERATION REPEATS
Detector lever and leaf spring (start
plate) are touching at the mechanism
stop location.
Leaf spring (start plate) is deformed.
= MOTOR DOES NOT STOP
Start panel is not moving properly.
YES
EV cam is warped.
The start plate spring is weak. (See
section 7)
The installation location of the PU
plate is incorrect.
The switch lever and switch locker
are not locking (See section 7).
Section7
In order to turn the power OFF, the PU plate
shaft touches surface (A) of the switch locker
pushing it over so it locks with the switch lever
turning the microswitch OFF (Fig. 4-7), If
the amount of push on the switch locker is insuf-
ficient, it can not lock with the switch lever.
With the tonearm locked in the arm rest, as shown
in figure 4-8, attach the PU plate precisely mid- switch lever
way between the first and second points from the
arm base scale mark counting away from you.
Fig. 4-7 Adjustment of switch locke:
Arm base
scale mark
Fig. 4-8 Adjustment of PU plat
43

MOTOR ASSEMBLY
NOTE:
The IC PA2008 used in the PXM-090 does not have a dedicated ground pin for
its internal circuitry, but uses the thermal fan ground. When replacing the IC, make
sure the securing screws retaining the ground line between the IC and thermal
dissipator and between the thermal dissipator and motor base, and base to circuit
board is securely tightened.
Motor Does not Turn
tive.
Teas
Component
connected
to
P
1
t
defec-
Is
Vee
1
28.8
volts?
Bol
eae
an
PA2008
terminal
4
defec-
YES
P NO
" PA2007 ie 11 less eGanected: “to (PAZO07
than 3.5 volts? terminal 11 defective.
YES
Pea terminal 3 (NO PA2008 defective.
Is output of PA2008 term- NO NO
inal 4 10—11 volts? PA2008 defective.
YES
PA2007 defective or parts
Poor PA2008 Tab terminal
to GND contact.
Motor Runs away
NO Power supply circuit de-
YES
Is PA2008 terminal 410— [NO NO! Parts connected to PA2008
11 volts? PA2008 defective. terminal 4 defective.
YES
; é NO :
Is FG signal input to TP1? PC pattern open in FG.
YES
12
: ; No| Parts connected to PA2007
Is FG _ signal mabye to terminal 13 defective or PC
PA2007 terminal 137 pattern open.
YES
PA2007 defective or parts
connected to PA2007
terminal 14 defective.
Is FG signal output from
PA2007 terminal 14 over
12V p-p?
NO
Slow down the motor at
about
33
1/3
rpm
with
a
;
hand,
is
the
prescribed
NO
nes
defective
or
Cl
waveform
output
from
efective.
PA2007 terminal 4?
YES

Slow down the motor at
about 33 1/3 rpm with a
hand, is the prescribed
waveform output from
PA2007 terminal 1?
PA2007 defective or C3
defective.
When the motor is stopped
by hand, is the output
from PA2007 terminal 11
less than 3.5 volts?
PA2008 defective.
e Motor Dead Spot
PA2007 defective, or C2
defective, or parts connect
between PA2007 terminal
5-6 defective.
Is the potential between
PA2007 terminal 5-6
0.5—0.8 volts?
Hall element defective or
Hall element bias resistor
defective.
When the motor is rotated
by hand, is Hall voltage
(Ha, Hb) generated?
Is Hall voltage DC bias Ha:
19—20 volts; Hb; 4-6
volts:
With power OFF, is DC
resistance between PA2008
terminals 12—14 and 1—13
60 ohms?
If resistance is high, coil
wire is open; if resistance
is low, PA2008 is defective
or coil is shorted.
R5~ defective or printed
circuit open.
With power OFF, is DC
resistance between PA2008
terminals 7—2 3.9 ohms
PA2008 defective.
13

5. PRECAUTIONS FOR REASSEMBLY
Follow these directions and precautions when
reassembling a unit after completing repairs. Be
sure to lubricate as required, make no mistakes
when attaching parts, and avoid all other careless
mistakes that may be the cause of trouble later on.
5.1 AREAS THAT REQUIRE LUBRICATION
NOTE:
Types of lubricants and areas where they are used are
listed in table 1.
Table 1
Type of Oil Areas used
raising shaft
Silicon Oil #50000
GYA-008 all other areas
Lubrication points are specified for oils other
than GYA-008. Never use a different type of oil.
e Cam Section
Apply oil to the heart-shaped grooved section
(rear side of the cam) and lock plate sliding section
in order to minimize wear on the sliding section
and the burden on the mechanism.
e Driving Plate Assembly
Decrease the burden on the mechanism and the
wear on the sliding section.
Sides, top, and bottom surfaces
(sliding section of auto-stop
mechanism)
Sides surface 2
(sliding section of
auto-stop mechanism)
Top and side
(sliding section of .s
auto-stop mechanism)
EV cam side surface
(sliding section of elevation cam)
Fig. 5-1 Driving panel assembly section
¢ Switch Locker Section
Apply oil to the switch locker (opening) and
sub-panel base sliding section to decrease the
burden on the mechanism.
When applying oil to the opening (shaft hole),
do not apply any oil 2—3mm from the bottom
surface. If oil is applied 2—3mm within the
bottom surface, it may come out the bottom and
go between the switch lever and sub-panel base
causing the switch lever to operate ineffectively.
14
Switch locker
Opening
eRe
2-3mm TT
Fig. 5-2 Switch locker section
e Selector Section
Apply oil to the surface of the sub-panel base
of the selector sliding section to decrease the
burden on the mechanism and wear on the sliding
section.
Side surface
Sub-panel
Ss
surface
Side surfaces
Fig. 5-3 Selector section
e Reset Plate Section
Apply oil to the sub-panel base (shaft) and
sliding section of the reset plate to decrease the
burden on the mechanism.
Reset plate
Sub-panel base
25
SS
Fig. 5-4 Reset plate section
Apply oil (GYA-008)
to shaft section
e Index Cam Section
Apply oil to the index cam, sub-panel shaft
section, and lower surface of the hooked section
to decrease the burden on the mechanism.

Index cam
eg Spring washer
; Lower surface of
S) hooked section
Shaft section
Fig. 5-5 Index cam section
e EV Lever Unit Section
Apply oil to the sliding section of leaf spring
(A) and EV lever unit to decrease the burden on
the mechanism.
Leaf spring (A)
sliding section
EV lever unit
Za EV lever unit
sliding section
\ |-____Arm base
\
Fig. 5-6 EV lever unit section
e@ Elevation Cam Section
Apply oil to the elevation cam and sliding sec-
tion of the raising shaft to decrease the burden
when operated.
Elevation cam
Fig. 5-7 Elevation cam section
e EV Sheet Section
Apply oil to the raising shaft and sliding section
of
the
bearing
to
assure
stability
in
the
elevation
lowering speed.
Apply all around
at a width of 1mm
Half of the grooved
section
EV sheet assembly
Fig. 5-8 EV sheet section
e Driving Lever (B) Section
Apply oil to the driving lever (B), control base,
and the sliding section of the driving lever shaft to
decrease the burden when operated.
Top surface
Driving lever (B)
Bottom surface
Fig. 5-9 Driving lever (B) section 1
Control base Driving lever (B) range of movement
Driving lever (B)
Start lever unit
Fig. 5-10 Driving lever (B) section 2
5.2 PRECAUTIONS FOR ATTACHMENT OF
PARTS AND REASSEMBLY
e Reset Plate SP Attachment
As shown in figure 5-11, the reset plate SP
hook is attached by putting the open section on
the sub-panel base side.
Sub-panel
Reset plate
Fig. 5-11 Reset plate SP attachment
15
e Cam Assembly Attachment
The cam assembly is attached by letting the
lock plate go in the direction A) as shown in figure
5-12.
Driving
Sub-panel base
Fig. 5-12 Cam assembly attachment
e Motor Attachment
When installing the motor, set the cam in the
mechanism stop location and verify that the
starting plate section does not protrude be-
yond surface @ of the cam. If the motor is at-
tached with the starting plate section (B) protrud-
ing, the starting plate may be deformed, the motor
pinion gear may be scratched, and the return
function may be damaged.
Signal plate
Fig. 5-13 Motor attachment
e PU Plate Attachment
Push the PU plate into place so that the PU
plate bearing section touches the revolution shaft
attachment nut. Installation direction is as shown
in figure 5-14.
Arm base
scale mark
Fig. 5-14 PU plate attachment
e AS Knob Attachment
When installing the AS knob, put the AS knob
rib against the AS knob revolution control stopper
(attached to the arm base) and affix with the
screw. As the stopper may break, be sure to press
the AS knob down firmly when installing it.
Stopper
s
aS _
ede
7
Fig. 5-15 AS knob attachment
e Arm Base Attachment
When attaching the arm base section to the
mechanism section, put the mechanism section
switch locker and switch lever in the locked posi-
tion and verify that the tonearm is in the arm rest
location. Also be sure to put the manual elevation
lever in the up position and check that the PU
plate shaft is in the position shown in figure 5-16.
PU plate shaft
Switch lever — Switch locker
Fig. 5-16 Arm base attachment
e Start Lever Unit Attachment
Attach the shaft section of the start lever unit
as shown in figure 5-17 so that it comes between
the reset plate and start panel.
Reset plate SP
Selector
Driving plate
ass‘y
Fig. 5-17 Start lever unit attachment
16

1
2
3
4
o
6
6.P.C.BOARDS
CONNECTION
DIAGRAM
MOTOR CONTROL. ASSEMBLY(PWM-O60O)
CONTROL ASSEMBLY ®WM-O57)
<2>
<3>
<4>
<5>
POWER SUPPLY ASSEMBLY
(XWR-OO6)
POWER TRANSFORMER
S!: POWER
ACI20vV
6OHz
47
1
2
3
4
5
6

1 2 3 4 s) 6
7. SCHEMATIC DIAGRAM
MOTOR CONTROL ASSEMBLY (PWM-060)
=: —_—_—_————aD ee eee ee ee © een oe = 1. RESISTORS:
[
Indicated
in
2,
%W,
+5%
tolerance
unless
otherwise
noted
k
:
kQ,
28.8
M:MaQ,
(F)
:
#1%,
(G)
:
#2%,
(K)
:
+10%
(M)
:
+
20%
tolerance
2. CAPACITORS:
Indicated
in
capacity
(uF)/voltage
(V)
unless
otherwise
noted
p
:
pF
Indication
without
voltage
is
50V
except
electrolytic
capacitor.
VR! OPERATING POINT ADJ (33r pm) 1c 1 PA2007
PCP- 066 1C2 PA 2008
SPEED CONTROL
VR2 OPERATING POINT ADJ (45rpm)
aad oi MOTOR DRIVE
1c 2
es
3.
VOLTAGE,
CURRENT:
wai
S__]:
DC
voltage
(V)
at
no
input
signal
<> mA: DC current at no input signal
ers
4.
OTHERS:
—
10/35 @ : Adjusting point.
The A mark found on some component parts indicates the im-
portance of the safety factor of the part. Therefore, when replacing,
be sure to use parts of identical designation.
This
is
the
basic
schematic
diagram,
but
the
actual
circuit
may
vary
due
to
improvements
in
design.
SWITCHES:
Si: POWER ON — OFF
S2: SPEED 33/3rpm —45rpm
The underlined indicates the switch position.
QO
PTT-II9
NEON C
PEL-046
AC POWER CORD
POG-023
AC l20V
60Hz
' fo)
45rpm —33//3rpm
$2
:
SPEEO
VR1I:
SPEED
{
’
:
‘in
as
bce
oy
«D2
WZ-300
oe
l
si
PowER
POWER
SUPPLY
ASSEMBLY
CONTROL
ASSEMBLY
(XWM-057)
(XWR-006)
External Appearance of Transistors and ICs
2sD985 PA2007 PA2008

od =)
8. BLOCK DIAGRAM
ROTATIONAL CONTROL
PA2007
#P-V CONVERTER — CONVERTS REFERENCE PHASE TO
VOLTAGE (0C).
% F-V CONVERTER — CONVERTS FREQUENCY TO
VOLTAGE (DC).
P-V
CONVERTER
REFERENCE
VOLTAGE
feimo_lprae
+
45
MOTOR 7 Q S2 speep
FG - O
33
t |
MOTOR ORIVE
vec 2 10V ROTATIONAL
CONSTANT DIRECTION IC PA2007 TERMINAL WAVEFORMS
VOLTAGE
INDICATOR
(AT
CONSTANT
SPECIFIED
CIRCUIT CIRCUIT {v) , ROTATION
ho
Cena
3)
Ty 4
4- PHASE
CIRCUIT
ar
C)=(13)~(14)=(12)
AC LINE
REVERSE
ROTATION
DETECTION
CIRCUIT
POSITIONAL
SIGNAL
FORMATION
ELEMENT
71
© es
3.6
5.0
®
ia
©
5.0
(3) 63
69
Os
)
about 1 mV rms
WAVEFORMS IN (1) THRU (@) ARE
PASSED THROUGH BUFFER AMP
Vee 1
21
9
. ELECTRICAL PARTS LIST
NOTES:
When ordering resistors, first convert resistance values into code form as shown in
the following examples.
Ex. 1 When there are 2 effective digits (any digit apart from 0), such as 560 ohm
and 47k ohm (tolerance is shown by J=5%, and K=10% ).
5602 56 x 10! 561..... RD“PS Bld J
57kQ 47 x 10° 473...... RD%PS (Zl J
0.52 ORS: oe he. eee a oh ons kG RN2H ORG K
12 OLOP otek heath athe doa cic RS1P Ma K
Ex. 2 When there are 3 effective digits (such as in high precision metal film
resistors).
5.62kQ 562 x 10! 5621 .... RN%SR HEAD F
The \ mark found on some component parts indicates the importance of the
safety factor of the part. Therefore, when replacing, be sure to use parts of
identical designation.
For your Parts Stock Control, the fast moving items are indicated with the
marks ** and x
** GENERALLY MOVES FASTER THAN *
This classification shall be adjusted by each distributor because it depends on
model number, temperature, humidity, etc.
Power
Supply
Assembly
(XWR-006)
Mark
_
Part
No.
Mark
Part
No.
Symbol
&
Discription
CEA
100P
35
i
ee
?
CEANL
R22M
50
A
PCL036
C1
Capacitor
:
CEA
R47P
50
A
RS2PF103J
R1
Resistor
RESISTORS
Control Assembly (XWM-057)
SEMICONDUCTORS
Mark Part No.
Symbol & Description
C15—C19
C20
C21
NOTE: When ordering resistors, convert the resistance value
into code form, and then rewrite the part no. as before.
bol & Discripti
See eee Mark Part No.
*&
*&
=
2SD985-K
Q1
Sac
*
zs
aoa.
=
RD
1/2PS
3R9J
:
RN
1/4PR
363G
ia
ao
*
PCP-066
(MZ-300)
*
=PCP-056
SWITCH, CAPACITORS and RESISTORS
Mark Part No.
Symbol & Discription SEMICONDUCTORS
*&&
PSG-029
$2
Mark
Part No.
CEA102M
50L
C2
*&*
PA2007
CEA470M
35L
C3
*&
*
PA2008
CKDYF103Z 50 C4
* PCS-022 VR1 OTHER
RS1PF222J R2
Mark Part No.
Motor
Control
Assembly
(PWM-060)
*
PCX-039
CAPACITORS
Mark
Part
No.
Symbol
&
Description
CQMA 123K 50 C1
CKDYF 104Z 50 C2
CQMA 473K 50 C3
CKDYF 473Z 50 C4
CEA 100P 16 C5
CKDYF 103Z 50 C6
CEA 010P 50 C7,C14
CEA 101P 10 cs
CKDYF 2032 50 C9-—C12
CSZA R22M 35 C13
22
Symbol & Description
R2—R4,R6—R9
R5
R1
VR1 (47k-B)
VR2 (33k-B)
Symbol & Description
1Ci
1C2
Symbol & Description
HA,HB Hall element

10. PACKING
Parts List
Bottom side
Description
Mark
No.
Part
No
1 N93-603 45 adaptor 6. PHG-439
2. PXB-501 Weight assembly 7. PNX-294
3. PRB-189 Operating instructions 8. PBA-100
4 PHA-127
5 PHA-128
Protector (L)
Protector (R)
Description
Packing case
Turntable platter packing
Screw
11. EXPLODED VIEWS
11.1 EXTERIOR
Parts List
Mark No. Part No. Description Mark No. Part No.
ae | PNV-034 Dust cover 6. PNX-298
2. XWR-006 Power supply assembly Ve. alana cent
* 3. PXB-155 Hinge assembly A *® 8. PTT-119
4. PNR-164 Turntable platter 9. PLZ40P120FMC
A w&*® 5. PEL-046 Neon lamp 10. PNX-347
NOTES:
e Parts without part number cannot be supplied.
e
The
4\
mark
found
on
some
component
parts
indicates
the
importance
of
the
safety
factor
of
the
part.
Therefore,
when
replacing,
be
sure
to
use
parts
of
identical
designation.
e For your Parts Stock Control, the fast moving items are indicated with the
marks ** and ®& .
*&* GENERALLY MOVES FASTER THAN *
This classification shall be adjusted by each distributor because it depends on model
number, temperature, humidity, etc.
Description
Lens holder
Power transformer (120V)
Screw
Panel
23

24
x
ak
+ +
16.
17,
18.
19.
20.
21.
22.
23.
25.
26.
27,
28.
29.
30.
31.
32.
33.
34.
35,
36.
37.
38.
39.
40.
41.
42.
43.
44.
45.
46.
47.
48.
49.
50.
51.
52.
53.
54.
55.
56.
87.
58.
59.
60.
61.
62.
63.
64.
65.
PAD-088
PAM-075
PNX-292
PAM-076
PAD-087
PAD-086
PAD-085
PNX-291
PNX-303
XWM-057
PPZ30PO80F MC
PDZ30PO50F MC
PAC-086
PSG-033
PDE-064
PBH-307
PBA-086
PEB-194
PEA-057
PNX-293
PBH-295
PBH-294
PDG-023
PEC-058
PEC-056
PNX-289
PBH-247
PBA-124
PBA-108
PNX-290
PXM-090
PBA-118
PBA-108
PXA-882
PNX-340
PBH-322
PBH-321
PXB-247
ZMD40HO80F BT
ZMR30H140FZK
IPZ30P100F MC
PNX-336
PBK-053
VBZ30PO80FMC
PXT-462
PBH-238
PBH-293
YE50S
PNX-339
PXT-596
PXB-501
PPD-624
PXB-227
Description
SP knob (A) unit
Front name plate (B)
Switch lever (B)
Front name plate (C)
SE knob (A) unit
R knob (A) unit
S/S knob (A) unit
Switch lever (A)
Switch lever (C)
Control Assembly
Screw
Screw
Adjustment knob
Push switch
PU cord
Switch lever (C) spring
Screw
Wahser
Damper cushion
Rubber mat assembly
Holder
Spring
Spring
Power cord
Strain relief
Strain relief
Driving lever
Driving lever (A) spring
Screw
Screw
Control lever
Motor
Screw
Screw
Headshell assembly
Stider
Spring
Spring
Tonearm rest assembly
Screw
Screw
Screw
EV lever unit
EV plate spring (A)
Screw
EV plate spring (B) unit
EV cam spring
EV spring
E-type washer
EV cam
Weight shaft assembly
Weight assembly
Tonearm assembly
EV sheet assembly
71.
72.
73.
74,
75.
76.
77.
78.
79.
80.
81.
82.
83.
101.
102.
103.
104.
105.
106.
107.
108.
109.
110.
PNX-341
PAC-100
PBF-017
PBH-292
PBE-012
PNX-335
VBZ30P150FMC
PXB-228
PBH-244
YS40FBT
WC40F MC
PNC-227
PMD40PO60F MC
PBH-320
PBA-128
PBA-535
PNT-554
GL-2PR1
Description
Tonearm base
AS knob
Washer
Spring
AS spring washer
AS plate
Screw
PU plate assembly
PU plate spring
Fixed washer
Plate washer
PU spring washer
Screw
Spring
Screw
Screw
Rubber bush
D5 diode
Holder
Mirror
Controller base
Lead unit (GND)
Base
Rubber bush
Terminal board (PU cord)