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JVC
taL-Fe
QUARTZ FULLY AUTOMATIC
TURNTABLE
MODEL
No. 2464
. FEB. 1979
Contents
Pages
1. Specifications ................................................................... 2. ServicePrecautions................................................................
Features.......................................................................
(2)
4. NamesofPartsandTheirFunctions.....................................................
5. Replacement Procedures
(1) Stylus.................................................................. Headshell " (3) Cartridge.............................................. (4) Motor.................................................................. (5) HO/VODampingKnobs " '" 6
6. Lubrication
(1) HO/VODampingMechanism .................................................. (2) Motor.................................................................. (3) FullyAutomaticMechanism...................................................
7. Adjustment Procedures
(1) ~UARTZ LOCK/PITCH CONTROL Meter ........................................ (2) OuartzLockAdjustment ..................................................... 8 Tonearm Section
HeadsheliAngle " (4) TonearmElevator.......................................................... (5) Overhang ...............................................................
(6) Lead-
(3)
in.................................................................
8.
(7) Lead-out................................................................ (8) TrackingForce........................................................... (9) Anti-skating............................................................. (10) HO/VODamping ......................................................... OL- F6BlockDiagram .............................................................
9. Troubleshooting Charts
(1) Platter does not rotate. (2) Platter rotates at high speed. ................................................. (3) Pitch Control operates abnormally. .............................................
10. Exploded Views and Parts List
10- (1) Cabinet & Mechanism Ass 10- (2) Mechanism Ass 10- (3) TonearmAss 11. Printed Circuit Board Ass y and Parts List 11- (1) MDC- 938G ............................................................. 11- (2) TPS- 206 ............................................................... 12. Accessories List ................................................................. 13. OL- F6 Schematic Diagram .......................................................... 14. PackingMaterialsandPartNumbers.................................................... 15. Parts List with Specified Numbers for Designated Areas. . Back page
OL-
No. 2464
1 -
Specifications
MOTOR SECTION (These specifications apply only to the quartz lock mode.
Motor
adjustable range
Servo system
Drive system Speeds Fine pitch
: Core less , DC type FG servomotor : Phase- locking to the quartz
Type
Frequency response
Channel separation
Load resistance Compliance
CARTRIDGE SECTION (Except for USA , Canada and U.
: Moving magnet (MD- l025EB)
oscillator : Direct drive : 33- 1/3
: :!: 6 % (at the pitch control mode) : 0. 025 % (WRMS) : More than 78 dB (DIN-
Output
Stylus
: 10 Hz -
25 000 Hz
: 3 mV (1 kHz) : 25 dB (1 kHz) (using the test record TRS: 47 -
: 10 x 10 6 cm/dyne (dynamic)
:
30 x 10 DT- Zl EB ,
100 k-ohms
6 cm/dyne (static)
Wow and flutter
Signal- to-noise ratio
Speed detection
Starting torque
Speed deviation
Load characteristics
: Frequency generator : More than 1. 2 kg-cm : Within 0. 002 % : 0 % (with 170 g total tracking
force) : 0. 0001 %/H
: 0 % (:!: 10 V)
0. 3 x 0.7 mil. (diamond , elliptical) Optimum tracking force: 1. 75 g :!: 0. 25 g GENERAL Power consumption : 15W : Height 14. 2 cm (with closed Dimensions
cover)
Drift
Power characteristics
Width 45. 6 cm Depth 40. 0 cm
(Since the dimensions show only the design measurements , consideration is requ ired when
installing the unit in a limited
space such as a rack , etc.
Temperature : 0. 00005 characteristics %tc : 32. 7 cm Platter TONEARM SECTION : Statically- balam;ed oil- damped Type tonearm Effective arm length : 233 mm
Overhang Weight range
including headshell
Weight Accessories
EP adapter
: 11 kg (without the packaging)
: 15 mm
: 13 - 20 g
: 1
Place the adapter on the center
spindle when playing a record
having a bigger diameter center
24 g (when using the provided
sub-counterweight)
hole such as a doughnut record.
Sub-counterweight
: 1
Design and specifications subject to change without notice.
2. Service Precautions
. Be sure to use JVC standard parts.
3. Features
. Newly developed oil- damped
tonearm assures
high
. When repairing the speed control circuit board connect the m938 G motor in order to prevent damage
to the transistor used.in the platter drive section.
trackability.
Highly sensitive , new gimbal' support tonearm system. servo circu it and high torque , nonresonance coreless motor give high reliability. . Extra- heavy aluminum diecast platter (2 kg including the mat , inertia 330 kg/cm
. Double- quartz
. Be
sure to adjust motor speed with the u nit
level
otherwise fluctuations which make adjustment impossible may occur.
. When repairing circuit board with the heat sink removed , attach mobile heat-sink to prevent the transistor temperature from rising.
Howling margin is greatly improved
super-compound (type- l)
front for easy operation.
with the new
board used as the base.
Operation buttons and controls are positioned at the
. NR- type headshell with minimum resonance is em-
ployed. Moving-magnet cartridge with a elliptical stylus.
Fine pitch control allows adjustment within:!: 6 %
(approx. a half note). . Quartz lock/Pitch control meter for convenient speed check. Fully automatic mechanism.
QL-
No. 2464
4. Names of Parts and Their Functions
Dust cover
Center spindle
Mat
Platter
Fig. 1
1. OIL DAMPED TONEARM
Ordinarily tonearms have a resonance frequency of
between 5 to 10Hz. If the peak of the range of a
tonearm is too high , accurate tracking of the tonearm with the record groove cannot be obtained be-
TONEARM i~ designed to suppress the range of resonance by maintaining a low resonant point of the tonearm to prevent howling. With this OIL
DAMPED TONEARM ,
proveved SIN ratio. I n
accurate tracking of the
cause the tonearm resonates at a frequency generated
record groove as well as a good resistant characteristic to howling is possible , thus resulting in an imorder to improve the sound
by ambient vibrations or sound pressure , or the tonearm can be influenced by adverse conditions of the record such as warps , etc. The OIL DAMPED
quality, the OIL DAMPED TONEARM plays an
important role.
QL-
No. 2464
2. HQ DAMPING knob This controls the horizontal movement of the tonearm while aiding to keep the tonearm s resonating
9. REPEAT knob
Decide how many times you want to re- listen to the record by using this knob. When you set the knob to " , the record will continue to play repeatedly.
Note: This knob cannot be turned to indicate from 1 - 0 or 0 - 1 if the START button is de-
point low. Set the knob to the same indication number as the optimum tracking force of this unit.
3. VQ DAMPING knob
This controls the vertical movement of the tonearm while aiding to keep the tonearm s resonating point low. Set the knob to the same indication number as
4.
pressed with the power cord disconnected from the outlet. For this , refer to the note
in the section " Necessary
to record playing "
the optimum tracking force of this unit. Speed select knob
procedures prior on page 2.
Select a proper position of the speed select knob in accordance with the rpm of the record. 33" 33- 1/3 rpm record (LP) 45rpmrecord(EP)............. 45" 5. QUARTZ LOCK/PITCH CONTROL select button
QUARTZ LOCK:
10. START/REJECT buttons When you start playing a record , depress the ST ART button. The tonearm moves automatically
Depress the button to the QUARTZ LOCK position
) for playing a record at an accurate rotation
the position of the first groove of the record preselected and gently lowers itself onto the surface of the record to play it. When you stop playing the record , depress the REJECT button. The tonearm lifts , returns automatically to its rest and the platter
stops rotating. , however , the REPEAT knob has been set for a number of repeats , the tonearm performs the cor-
speed in the quartz lock mode. In this case ,
meter lights green. PITCH CONTROL:
Depress the button a second time to obtain
the
the
P ITCH CO NT RO L position (---) in order to perform fine pitch adjustment for the sound meeting
respond ing number of prepeats before the platter stops rotating. Note: When the dial of the repeat knob has been
set to numbers other than "
continues to rotate and the
, the platter
your preference. I n this case , the meter I ights orange.
6. PITCH CONTROL meter When the QUARTZ LOCK/PITCH CONTROL
select button is set to the QUARTZ LOCK position
the meter is green- lit and the indicator displays "
be turned off even though
power will not you depress the
REJECT button or even if the playing record has finished. When you want the
power to be turned off after the record
played once , be sure to the " 0" mark.
has
When the QUARTZ LOCK/PITCH CONTROL select button is set to the PITCH CONTROL position , pitch control can be performed by turning the PITCH CONTROL knob and the meter is
orange- I it.
#6 % means +6 % % means - 6 % b6
to set the repeat knob
11. RECORD SIZE select knob
Set the knob to the corresponding position to the
size of the record before you play it. 30 cm diameter record. . . . 25 cm diameter record. . . .
30" (12" 25" (10"
7. PITCH CONTROL knob
17cmdiameterrecord...... " 17"(7")
12. Arm lifter lever
Fine pitch control
can be performed with the
QUARTZ LOCK/PITCH CONTROL select button
set to the PITCH CONTROL position. Pitch adjustment range is :!: 6 %. The indicator in the meter deflecting to the left (#) from the center (0) indicates an increase to the accurate 33- 1/3 or 45 rpm and the deflection to the right (b) means a decrease. 8. ANTI-SKATING knob
This device cancels out the
This is used
when you want to raise the tonearm
gently or gently lower it. When you push it to the UP" position , the tonearm will be lifted up, and when you pull it to the " DOWN" position , it will be lowered down gently onto the record surface.
centripetal force that
pulls the tonearm to the center of the platter. This
prevents the stylus tip from skating toward the center of the platter and at the same time eliminates
any excessive stylus tip force on the inner wall of
the record groove. Use the 8 marked dial when employing a spherical stylus. Use the marked dial when employing an elliptical stylus or a SHIBATA stylus. Turn the dial to the same number as on the track ing force dial.
QL-
No. 2464
5. Replacement Procedures
5-( 1)
Stylus
(B) of the
Stylus replacement (See Fig. 2)
Replacement of the stylus can be easily made by simply
inserting the stylus plug (A) into the jack
cartridge. Service life of the stylus
employed for this
EB) is generally as follow; varying, depending on the record condition (dirty record groove etc. Stereo LP record (30 cm) . . . Approx. 300 - 500 hours Stylus are disposable items. Therefore , it is recommended to buy a supply of styli when you buy the unit. When purchasing them , specify the DT- Zl EB (JVC standard).
unit (DT- Zl
5-(2) Headshell
Removal and mounting of the headshell (See Fig. 3) Turn the connector nut in the direction of " A" to remove
the headshell from the tonearm. Turn it in the direction
Fig. 2
of "B" for mounting the headshell.
5-(3) Cartridge
Mounting the cartridge (See Fig. 4) 1. Remove the 2 screws securing the cartridge onto the headshell. 2. I nstall your cartridge onto the headshell provided or onto a headshell of your selection. 3. The headshell lead wires are color-coded as follows
connect them correctly.
Fig. 3
, ~s~"'Green: to RE or R- of cartridge
Cartridge with stylus
Blue: to LE or L- of cartridg
Red: to R+ or R of cartridge
White: to L+ or L of cartrige \
White(+)
BlueH "
L Red(+).......
then , after
Headshell
" LE Green(lift "0"
4. Mount the cartridge properly onto the headshell
and leave the set screws slightly loosened ,
completing the " Overhang adjustment " (See page 9) tighten them firmly. After this adjustment , be sure that the conditions concerning the 3 adjustments on
page 5 and 6 are satisfactorily met.
5. After each cartridge replacement ,
be sure to perform
Fig. 4
the 4 adjustments described on page 9.
(4) Motor
How to remove the motor (Fig. 5)
Remove the motor in the following sequence. There is
no need to remove the mechanism s base.
1. Remove the stopper , main gear and spring attached to the motor plate. 2. Disconnect the plug connecting the motor with the speed control circuit board. 3. Remove the 4 screws securing the motor.
4. Lift the trip lever as
shown in the figure while taking
care not to deform it and remove the motor while
tilting it.
5. Mount the motor , in the reverse order.
QLFig.
No. 2464
(5) HQ/VQ Damping Knobs
When replacement of VQ or HQ damping knob becomes necessary, do it in the following sequence. . How to replace the HQ damping knob (Fig. 6) 1. Remove the 2 screws securing the HQ damping knob and remove the knob. 2. Turn the HQ controller clockwise until it stops. 3. Clamp the tonearm to its rest. 4. Mount the new HQ damping knob on the HQ controller with the indication " 3" on the knob aligned with the index line. Secure it with the 2 screws.
Ha damping knob
Ha controller
Index line
va controller
5. After replacing it ,
the section " How
perform adjustment referring to
to use " on page 4.
. How to replace the VQ damping knob (Fig. 6)
Replace in the same
way as the HQ damping knob is
"t.
Screws
Fig. 6
va damping knob
replaced.
6. Lubrication
6-(1) HQ/VQ Damping Mechanism
QL- F6 turntables are completely adjusted at the factory
6-(2) Motor
The motor needs no lubrication.
prior to shipment. The damping mechanism cannot be repaired imd it is recommended that it be replaced if
it malfunctions.
6-(3) Fully Automatic Mechanism
Apply high quality grease to connecting and sliding parts after they are replaced.
7.
Adjustment Procedures
1)
Servo-motor Control Section
7 -(
QUARTZ LOCK/ PITCH CONTROL Meter
How to use the QUARTZ LOCK/PITCH CONTROL
meter (See Fig. 7-
QUARTZ LOCK (~):
When the QUARTZ LOCK/PITCH CONTROL select button (1) is depressed to tbe QUARTZ LOCK position
the meter (2) becomes green- lit.
In this mode the rota-
tion speed is accurately
to the quartz oscillator frequency. This means that correct 33- 1/3 or 45 rpm is obtained. The indicator (2) of the meter displays "
PITCH CONTROL
Fig.
(b) indication shows the reproduced is lowered by approximately a half tone.
controlled by phase- locking
When performing fine pitch adjustment , depress the QUARTZ LOCK/PITCH CONTROL select button (1) to the PITCH CONTROL position and the meter becomes orange- lit. In this mode , fine pitch adjustment can be performed by turning the PITCH CONTROL knob (3) within a range of :!: 6 %. Turning the knob in
the (+) direction (counterclockwise) increases the rpm. Turning it in the (-) direction (clockwise) decreases the rpm. The meter indication of +6 % (#) shows the reproduced sound raised by approximately a half tone.
The -6 %
sound
By making these adjustments , record sound tion meeting your preference can be obtained.
reproduc-
QL-
No. 2464
How to make adjustments
Fig.
if the pitch control meter
should indicate incorrectly (when the meter does not display " 0" in the QUARTZ LOCK operation). (See
1. Disconnect the power cord from the outlet. platter from the motor shaft. 3. Turning the " 0" position adjusting screw moves the indication to the right.
2. Remove the
Turning this screw counterclockwise
cation to
clockwise
moves the indi-
tl:1e-left.
Generally, there is no need for adjustment since proper adjustment has been performed at the factory.
Should the indication of the
meter be incorrect
adjust it in the manner above.
Adjustment of the FINE PITCH CONTROL
meter (See Fig. 7-
Fig.
Perform this meter adjustment referring
to rpm or repairing the meter circuits.
to the
below after making mechanical adjustments
items pertaining
1. Function of the variable resistors used
1) VRl (4.7k.Q): Connected in series with the meter and controls
the current flowing into the meter. Used to adjust
the full-scale deflection (:1: 6 %) of 2) VR2 (4. 7k.Q).
the meter.
Employed for adjusting
or 45 rpm. 3) VR4 (47 k.Q):
the pointer of meter to
indicate the center position " 0"
at 33- 1/3 rpm
There is no need to adjust this variable resistor
adjusting system. However , adjustment in the following order is necesbecause of the automatic
sary after the motor is replaced or the circuit is
repaired. Turning VR4 to the right (clockwise) as seen from the circuit board decreases the speed
and turning it to
2. Adjustmerrt method (See Fig. 7-C) Perform mechanical adjustment for the meter to indicate the center position before connecting to an AC outlet for electrical adjustment. 1) Adjustment of the oscillation frequency of the nonstable multivibrator Connect a frequency counter to TP- l with the QUARTZ LOCK/PITCH CONTROL select button while set in the PITCH CONTROL position. Turn VR5 with VR6 set to near the center position until a frequency counter re ading of 172. 8 kHz obtained. 2) Center indication adjustment of the meter. Turn VR2 with the speed select knob set to 33- 1/3
until the meter indicates the center position "
Then , set the speed select to 45 rpm and the meter indicates the center position " Confirm again that the meter indicates center posi-
the left (counterclockwise)
increases the speed and unlocks it. When it is unlocked platter rotation becomes unstable. Adjust VR4 to its middle position where the rotation speed is stable and does not increase
or decrease. 4) VR5 (22 k.Q):
tion at the 33. 1/3 rpm.
3) Full-scale deflection
(:1: 6 %) adjustment Turn VR6 until an oscillation frequency of 183. 2 kHz (+6 %) is obtained. Turn VRl until the meter correct-
For adjusting the oscillation frequency of the pitch control. Adjust V R5 (to near its middle position) with the speed selector set to " 33- 1/3"
Pitch control located on front panel.
until the correct speed is obtained. 5) VR6 (10k.Q):
For detail , see PITCH CONTROL on page 6.
ly indicates +6 %. Turn VR6 until an oscillation frequency of 162.4 kHz (-6 %) is obtained and confirm that the meter correctIy indicates -6 %. Deflection of the meter out of the -6 % zone is allowable. Turn VR 1 until the meter indicates -6 % , if the meter deflection is insufficient for -6 %. I n this condition , deflection of the meter out of the +6 % zone may occur , but is allowable. . The meter adjustment can be performed using a stroboscope , even if measuring equipment is not available. Turn VR5 with VR6 set to the center position until the stroboscope appears stationary. For the center indication adjustment , follow the same
manner as when employing a frequency counter. It is not possible to perform the full scale deflection adjustment and adjustment of VR 1 is unnecessary.
QL-
No. 2464
7 -
(2) Quartz Lock Adjustment
This adjustment is necessary only after replacing or repairing VC4046 (IC1) or replacing VR4. Prepare a voltmeter or tester having an impedance of more than
20 kD,/V . Connect it between Pin 10 and the ground terminal of ICl and turn VR4 until a reading of 3
:1: 0. 5
V is obtained.
negligible thanks to the automatic lock- in type IC. The adjustment can be correctly performed with a tester having an impedance
Slight adjustment errors are
1 k - 5 kSt
some manner , such as using an emitter- follower
if an impedance conversion is performed in circuit.
Fig.
Tonearm Section
7 -(3)
Headshell Angle
Headshell mounting angle adjustment (See Fig. 8If the headshell is not horizontal and the stylus tip is not
perpendicular to the record surface , loosen the lock
screws as shown in the illustration and move the headshell to adjust the stylus to be at right angles
(90
with
Fig.
the platter. Eye-measurement is sufficient.
Be sure to retighten the screws
after the adjustment is
completed.
Fig.
7-(4) Tonearm 8evator
. Tonearm elevator height adjustment (See Fig. 9)
The optimum. clearance between the stylus tip and the record surface is about 6 mm when the tonearm is supported by the tonearm elevator. Turning the adjusting screws clockwise lowers the height of the tonearm
elevator and counterclockwise increases it.
Fig. 9
QL-
No. 2464
7-(5) Overhang
To obtain optimum overhang, when mounting the
cartridge ,
first align the cartridge s longitudinal axis to
. Overhang adjustment (See Fig. 10)
that of the headshell and position the cartridge so that
the distance between the headshell' s
end face and the
stylus tip equals 48 mm.
Be sure to tighten the set screw after the adjustment. Errors within 1 mm are negl igible from a practical
point of view.
7 -( 6) leadStylus lead- in
Fig. 10
Your QL- F6
position adjustment (See Fig. 11) was shipped from the JVC factory with its
position adjustment made properly. How-
stylus lead- in
ever ,
if the stylus lead-
in position is changed due to
(12" ) and
cartridge changes , etc. , adjust it as in the following: 1. Place a 30 cm record on the platter.
2. Set the record size select knob to " 30"
operate the turntable in automatic play.
3. Confirm if the stylus
disc.
4. If the lead.
lead-
in position is about 3 to
4 mm inward from the outermost edge of the record
in position is not in the proper range , turn
and counterclockwise to decrease
the proper lead- in
the adjustor screw with a screwdriver clockwise to
increase the distance between the lead- in position and
the outermost edge ,
the distance. Thus determ ine
posiFig. 11
tion point to be about 3 to 4 mm inward from the
disc edge.
7-(7) lead-out
Stylus lead-out adjustment (Fig. 12)
Be sure to perform this adjustment after replacing the
tonearm , motor or related mechanism.
1. Use a 17
cm (7") record
(with a lead-out groove
diameter of about 110 mm).
2. Remove the platter from the motor shaft. Turn the adjustor screw accessible through the hole shown in
the figure clockwise with a - screwdriver to increase
lead-out tuning.
3. Confirm the lead-out position with a 17 cm (7")
record with its inter- band track as near to the innermost groove as possible. If the lead-out position is incorrect , re-adjust, it by turning the adjustment
screw.
Fig. 12
QL-
No. 2464
7-(8) Tracking Force
Fig. 17
1. Tracking force adjustment
Fig. 13
1. Turn the anti-skaing knob until the " 0" mark is aligned with the
index line. (See Fig. 13) 2. Turn the HQ damping knob until the " 0" mark is al igned with the index line. (See Fig. 6) 3. Turn the VQ damping knob until the " 0" mark is aligned with the
index line. (See Fig. 14J
4. Place a disc on the platter.
5. Remove the
stylus cover from the
Fig. 18
stylus. (See Fig. 15)
6. Release the tonearm clamp. (See
Fig. 16)
Fig. 14
7. Zero balance adjustment (See
Fig.
17)
Turn the counterweight until the
tonearm is balanced. Stop turning the counterweight when the stylus tip is almost touching the disc surface. 8. Return the tonearm to the rest and clamp it.
9. Hold the counterweight at the adjusted position and turn the tracking force dial until the " mark is aligned with the index
Fig. 15
Fig. 19
line on the tonearm weight
75" mark
shaft. (See Fig. 19)
10. Turn the counterweight in the B
on the dial is aligned with the index line. The " 75" mark
means an optimum tracking force
of 1.
direction until the "
75 g is being
applied. (See
Fig. 20)
Note:
Turning the counterweight in the
direction A decreases the tracking
force and increase it in the direction B. Turning the dial only, has
Fig. 16
Fig. 20
no effect on the tracking force.
10 -
QL-
No. 2464
7-(9) Anti-skating
Anti-skaing adjustment
Adjust the anti-skaing
force accord ing to the cartridge
being used. Turn the anti-skating knob dial to the same
number on the tracking force dial. Use the 8 marked dial marked dial for an elliptical or a Shibata stylus. Set the " 75"
when employing a spherical stylus. Use the
of the - marked dial to the index line since the QL- F6 is provided with an elliptical stylus and the tracking force has been adjusted to 1. 75 g. (See Fig. 21)
7 -( 10)
HO/VO Damping
Fig. 21
Turn the HQ damping control and the VQ damping control knobs until the " 75" marks on the dial are
force for this unit
aligned with the index line , since the optimum tracking is 1.75 g. When not using the oil-
damped function turn the knobs until the " 0" mark is
aligned with the index line. (See Fig. 22) Caution:Turning the HQ and VQ damping control knobs while playing a record may cause damage to the disc or to the stylus tip. Do not touch them while playing a disc.
Release the tonearm clamp and start playing the record.
Fig. 22
8. OL- F6 Block Diagram
Platter
AC Amp. Schmitt circuit
Mono-multi vibrator
Meter drive
circuit
1---!+24V
F /V conversion
Push- pull
drive circuit
+6% P/D circuit
DC amp.
Power supply circuit
AC 100V
+24V
+ 8V
Oscillator/ Frequency divider
Tal
L_GND
5.5296MHz
50/60Hz
r- Speed selection
QUARTZ LOCK/PITCH CONTROL selection
Non-stable multivibrator
Pitch control
Fig. 23
QL-
No. 2464
11 -
9. Troubleshooting Charts
9-(
1)
Platter does not rotate
1. Turntable does not rotate.
Turntable does
start button is
Yes
not rotate when
depressed.
Check all driving coils.
Cooo,ct
Note: Don
Check transistors X1 - X12 , and elements
t disconnect the motor from electronic circuits while troubleshooting as transistors
Hall
in drive circuit may be damaged.
HG1 , HG2.
Yes
R,p""
Yes
IC5 is defective.
Replace.
Yes
Replace the pilot
lamp.
Check the trans-
Yes
Is R70 disconnected or badly
former for dis-
connected wires damaged
and pattern. printed
soldered?
Yes
Check X15 , 02.
IC1 is defective.
Replace
Check if C22 are
open.
R68
X16 is defective.
Observe the FG output and IC4
adjustment or
Yes
Perform locking
performance to trase the defect.
check the phase.
Yes -+/ X17 is defective.
Fig. 24
QL-
12 -
No. 2464
(2) Platter rotates at high speed.
Platter rotates at high speed.
Rotates at high speed
when the start button is depressed.
Yes
I s rectangular
Yes
Is the waveform
Yes
Yes
waveform present at
Pin 7 of IC4?
Pin 4 of IC1?
shown in the circuit diagram present at
Does connecting the
base of X16 to +24 V
stop rotation?
Yes
X17 is defective. Replace.
output of motor.
Check the Schmitt circuit and AC amplifier sections , and the FG
Check if C22 , R6 , R68 are disconnected. Replace if they are.
Check if IC1 is defec-
tive , R67 is disconnect, VR4 is open. Replace if necessary.
IC5 is defective. Replace.
When the terminals
of R30 , R31 , R32 are grounded , does rotation stop?
Fig. 25
Note: Don
t disconnect the motor from electronic
circuits while troubleshooting as this
may
damage the transistors in the drive circuit.
X 16 is defective.
Replace.
QL-
No. 2464
13 -
(3) Pitch Control operates abnormally.
Pitch control functions incorrectly.
circu ited? Replaced.
Is D6 or D7 short-
Yes
Check for disconnected
The collector and emitter of X 19 are short-
wire(s) in the meter
whether VR1 is open or
if the meter leads are
transistor .
connected and whether open. Replace
Check if R64 is disX22 is
circuited. Replace this
Readjust and observe.
disconnected.
if necessary.
connected. Replace if disconnected.
Check if R12 is dis-
connected. Replace if
Check if R53 is disso.
2. Meter deflects
to positive side and remains there.
Yes Yes
Check if R52 is disconnected. Replace if defective.
Collector and emitter
transistor.
of X 18 are short-circuited. Replace this
Readjust and observe
Disconnected or defective R 11. Replace.
Fig. 26
QL-
14 -
No. 2464
- 9L179171::
9::1-
sSV ws!ue4:)all\l
18 :a.au!q~
(L)L
:a.S!l s:a.Jed pue
SMa!J\ papoldx3 . 0
No.
Parts Number See table below. E65588-001 E49447-004 E66140-001 E35480- 002 E35869.o01 G4942G4942-4 E22873-001 E22911.o01
OSP221 0- 059 E65912-001 OVD7A2B-014
Descrip~ion
Motor Board Ass
No.
Lock Plate Shaft Rubber Sheet
Mark
Fittings Speed Nut
Panel Base
Push Switch Knob
V. Resistor
E61713- 003 35981-001 Ol.P3201- 1240 E04353-001 E04353-002 LPSP3008ZS F2001 SBSB3008Z SBSB2608Z E65714- 001 E65715-003 See table below. E60331-005 M938G See table below. DPSP3008ZS E35915- 002 E65718- 001 E22876- 003 E65282- 001 E65283-001 REE1200 E60912.o01 E65719-001
See page 21
VR. Knob
Meter Ass
Lamp
Color Cap (Green)
Parts Number E65729-001 E35841-001 E65730- 001 E35842-001 E35842-002 E65733-0~H REE2000 E65735-001 E35844-001 See table below. See table below. SBSB4008Z E49631.o03 E49633-001 See table below. E50670.o05 E03724-002G
OM LOO02-051
Description
Start Rod
Push Knob Ass
Bracket Ass
Push Knob (33 rpm)
(45 rpm)
Pivot
E. Ring Reject Rod Trans. Bracket
Shield Cover
Power Transformer
Tapping Screw
Rubber Bushing Motor Holder
Rubber Sheet
Wire Clamp Signal Cord Ass
Lug Strip Ass
(Blue) Ass y Screw
Mechanism Base Ass Tapping Screw
See table below. See table below. E60090-003
OSRO085-001
Power Cord Ass Cord Bushing
Knob Lever Knob
Tonearm Ass
Shield Cover Voltage Selector (for U. Mil itary Market and other
countries only)
Screw
Motor Ass
Servo Control P
B. Ass
Screw
Stopper
Spring
Main Gear Ass Engagement Pawl Lawer Trip Pawl
E. Ring
Speed Nut
Connect. Rod Fuse P B. Ass
Push Knob Ass
E35838.o01 E35839-001 E35839.o01 E65726-001 REE3000 E65876-001 E65875- 001
Push Knob (START) (REJECT) Pivot
E. Ring
Leaf Spring Rod Holder
E65329.o01 OSE2235- 203BS E66153-001 E61284- 001 E35845.o01 GBGB3012M See table below. E65877-001 E65878-001 E22874.o01 See table below. E35828.o01 E10298-001 E61992.o05 SDSP3010RS REE4000 REE3000 LPSP3008ZS E66154.o01 E66089.o01
Holder Seesaw Switch Weight Tapping Screw
Bottom Cover Ass
Tapping Screw
Foot Ass
Latch
Pin
Turntable
Turntable Sheet Dust Cover Ass
Dust Cover
Hinge Ass
Screw
E. Ring
Ass y Screw
Rubber Sheet
Caution Label
Parts List with Specified Numbers for Designated Areas
Item
No.
Description
Motor Board Ass
E 1
Canada
Europe
E 1
Australia
E 10302- 003
E 1
S. Military Market and
Other Countries
Tonearm Ass
0302.004 ARM- 529
0302.004 ARM- 529
E 1
0302.004
0302.004
Servo Control
C. Board Ass
MP- 201S
ARM-529
MP- 201S
E 1 0302-002 MP- 201S
MDC938GTPS- 206B OFH72BM-473M OMF61 U1- R50 (0. 5 A) OMF61U1- 1RO (1A)
MDC938GTPS- 206C OFA72BM-473M OMF61U1- R50 (0. 5 A) OMF61U1- 1RO (1A)
MDC938GTPS-206E
C101
Fuse C. Board Ass Capacitor &, Fuse (Primary) &,
Fuse (Secondary)
MDC938G-
MDC938G-
MDC938G-
OFZ9007- 104 OMF51A2- R20
(0. 2 AT) OMF51 A2- R80 (0. 8AT)
TPS- 206GBS TPS- 206F TPS- 206D OFZ9007- 104B~ OFZ1007- 104 OFH53AM- 104 OMF51A2- R20BS OMF51A2- R20 OMF60S1- R50
Fuse CliP&' Shield Cover Power Transformer &, Rubber Sheet Power Cord&'
Cord Bushing Foot Ass
E45524.o01
E45524. 001
E48965-002 E65716.o01
E03032- 33C E61796.o03 OMP3910- 244 A37897 E65893.o01 E22936.o01
16 -
(0. 2 AT) (0. 2 AT) (0. 5 A) OMF51A2- R80BS OMF51A2- R80 OMF60S1- R80 (0. 8AT) (0. 8AT) (0. 8A) E48965- 002 E48965.o02 E45524.o01 E65716.o01 E65716.o01 E65716.o01
E03032- 33B
OMP1200- 200 OHS3876- 162
E03032- 33B
aMP 1200- 200 OHS3876- 162 E65893- 002 E22936.o02
Turntable Sheet
E65893.o02 E22936.o02
E03032- 33CBS E61796.o03 OMP9017.o07BS A37897BS E65893-001 E22936.o01
E03032- 33C E61796.o03 OMP2500- 200 A37897 E65893.o01 E22936.o01
E03032- 33D E61796.o03 OMP1200- 200 A37897 E65893.o01 E22936.o01
QL-
No. 2464
10- (2) Mechanism Ass
C(ID
No.
Parts Number
Description
Base Ass
No.
E22883-002 E60395-001 E60394-003 E60392-O02 E60393-002 G4942E65740-O01 E35851-001 E35850-O01 E60398-O01 E65741-001 E60912-001 E60399-001 E65742-O01 E60400-O02
Reset Plate
Switch Plate Ass Switch Plate
Switch Lever
Parts Number E65748-001 E60416-001 E35852-001 E60426-003 E60427-001
E65873-O01 E65749-O01 E60488-001 G41505-O05
Description
Lock Lever
Spring
Index Lever
Lever Spring
Select Plate
Speed Nut Spring Dr. Gear Ass
Driving Gear Lead- I n Lever
Push Lever
Select Lever
Spring
Steel Ball
E60390-002
E 65874- 00
1
Elevator Cam Spring
E. Ring
Cueing Shaft
Speed Nut
Spring
REE3000X
E65750-O01
Idler Gear
Sub Gear Ass Sub Gear
E60405-003 E60402-002
E60403-O01 E60912-001 E60404-001 E65744-O01 E65745-001 E60912-001 E65746-O01 E65747- 001
E49608-002 E60414-001 E65956-001
E65957-O01 E65958-O01 E65959-001 E65960-O01 SBSB3010Z E65720-O01
Spring Rod
Cueing Ass Cueing Base Cueing Lever
Hook Speed Nut
Spring
Ratchet Cam
Washer Spring Tapping Screw
Trip Lever Ass
Spring
Speed Nut
Start Lever
E65959-002
E65959-O01
Washer
Spring
17 -
QL-
No. 2464
10-(3) Tonearm Ass'
102-16
102-II
(j) I
102-12--j 'r (
Ei
I \I / I 1
( "'-3
101-5 I I
102-17
102-4
110
-2 . .
110
~l
103 )i
101 'r / eY /J~
1 I
L ~ 102-5
~ I~/02
~102
102-3 \
110-3
~~IIO-' Yi ~I I"~
1\
/105 ~1C
d:.~
\ C)
III
112~ c.
113
Jl~ ~1107 "
t!:r~ 110-4 0
10213
0;& 1)~
\ "'102-191
i QI6U ~ ~ "1
~!Ye ~ i
6!
106 /
~102-7 \1 \ ~7 104
,!J
102-19
i--
1 ~1'l i-1",--
102-6
102-8
106 102-15~"-..
102-14 '
Parts Number
102-18 \ ~1--!--102-9 --1--102-10
, I!r
No.
101
101101101-4 101102 102102102-4 102102102102-8 102102102102102102102-
Parts Number E22901- 001 E35894-001 TCS2002NS E35895-001 TRS2006NS E22902-001
E10308-O01
Description
Tonearm Ass
Cap (A)
Screw
Cap (B)
35897-001 E35900-001 E49602-002 E35901- 001 E65825-001 E65827-001 65826-001 SBSB2608Z E65829-001 E49649- 001 E61194-001 E49655-007 REE3000
Screw Tonearm Base Ass Tonearm Base Sub Ass Plate Anti-skating Knob
Wave Washer
Anti-skating Lever
Anti-skating Plate Anti-skating Spring
Spring Holder
Tapping Screw Elevator Ass Spring
Elevator Shaft
E" Ring
No. 102102102102103 104 105 106 107 108 109 110 110110110-4 110111
E65835- 001 E65824- 001 SBSB2616Z SBSB2605Z E65837-001 E65830-001 E300015-O01 SPSP3006ZS
E61775-O01 E65823-001 E65938-001
Description Screw
Rest Ass
Tapping Screw
Washer Nut Tonearm Lever Screw
Shield Tube
Counterweight Ass
E35991- 002 E35989-002 E60501-005 E60502-001 E22962-001 MD- 1025EB
DT- Z1EB
Subweight
Headshell Ass
112 113
E34268-001
Finger Wire Ass Screw Headshell Boay . Cartridge Stylus
Stylus Covering
18 -
QL-
No. 2464
11. Printed Circuit Board Ass y and Parts List
11- (1) MDC- 938G
(Different in Different Area
see back page)
QL-
No. 2464
19 -
Transistors
No, Parts Number
Capacitors
Rating
Description Maker
Silicon
2SD794(P 2SD794(P 2SD794(P
2SD794(P
10W
Q) Q) Q)
55 MHz
No, C17 C18 C19 C20
C21
2SA733(P 2SA733(P Q) 2SA733(P Q) 2SA733(P Q) 2SB605(K X10 2SB605(K L) X11 2SB605(K L) X12 2SB605(K L) X13 2SC2259(G F) X14 2SD325V(D X15 2SC945(P X16 2SA733(P K) X17 2SC945(P X18 2SC945(P K) X19 2SC945(P K) X20 2SC641K(B X21 2SC641K(B C) X22 2SC945(P X23 2SC945(P K) X24 2SC945(P K) X25 2SC945(P K) X26 2SC945(P K) X27 2SC945(P K)
I ntegrated Circuits
250 mW
180 MHz
800 mW
120 MHz
C22 C23 C24 C27 C28 C29 C30 C35
Rating QCT05UJ- 330 33 pF DC 50 V QCE12HP- 103 01 Jl.F DC 500 V QCF11 HP- 223 022 Jl.F DC 50 V QFM41HK- 473 047 Jl.F QCF11HP- 103 01 Jl.F QFM41HK- 104 1 Jl.F QFM41HK- 473 047 Jl.F QCF11HP- 103 01 Jl.F QCT05CH- 151 150 pF DC 50 V QCT05CH- 151 QET41VR- 106 10 Jl.F DC 35 V QCF11HP-473 047 Jl.F DC 50V
QCF11
Parts Number
Description
Ceramic
Mylar Ceramic Mylar
Ceramic
Electrolytic Ceramic
HP- 473
10W
250 mW
8MHz 250 MHz
Sanyo Resistors
180 MHz 250 MHz
100 mW
400
MHz
Hitachi
250 mW
250
MHz
No. Parts Number IC1 VC4046 IC2 NJM78L08A IC3 MSM4001 IC4 NJM4558DIC5 NHM4558D
Rating Description
Maker Dki Denki Kogyo Shin Nihon Musen Oki Denki Kogyo Shin Nihon Musen
Diodes
Parts Number
WO2
RD5. 6EKVM2 VC1220 15553 15553 1S953(A 1S953(A D11 15553
Rating Description Silicon Zener
Varistor Silicon
Maker
Capacitors
No.
C10
C11
QCY41HK- 102 1000 pF QET41HR- 105 1 Jl.F QET41ER- 475 7 Jl.F QET41HR- 474 0.47 Jl.F QEN41EA- 336 33 Jl.F
Parts Number Rating QCF11HP- 223 022 Jl.F DC 50 V QET41VR- 106 10 Jl.F DC 35 V QCT05UJ- 330 33 pF DC 50 V
Description
Ceramic
Electrolytic Ceramic
Electrolytic
DC 25 V DC 50V DC 25V
C12 C13 C14 C15 C16
QEN41EA- 336 QET41ER-476 47 Jl.F QET41JR- 107 100 Jl.F QET41JR-476 47 Jl.F QET41JR-477 470Jl.F QCT05UJ- 330 33 pF
Nonpolarized Electrolytic Electrolytic
DC 63 V
DC 50 V
Ceramic
Parts Number QRD143J- 102 QRD143J- 105 QRD143J- 103 QRD143J- 102 QRD143J- 104 QRD143J- 103 QRD143J- 472 QRD143J-473 QRD143J-473 R10 RE36YQ- 8KF R11 RE35YQ- 7KF R12 RE35YQ-4. 7KF R13 QRD143J- 222 R14 QRD143J- 473 R15 QRD143J- 473 R16 QRD143J- 394 R17 QRD143J- 272 R18 QRD143J- 182 R19 QRV141F- 2702 R20 QRV141F- 1802 R21 QRD143J- 182 R23 QRD143J-334 R24 QRD143J- 223 R25 QRD143J- 222 R26 QRD143J- 123 R27 QRD143J- 391 R28 QRD143J- 332 R29 QRD143J- 101 R30 QRD143J- 680 R31 QRD143J- 680 R32 QRD143J- 680 R33 QRX016J- 2R7 R34 QRD143J- 3R3 R35 QRD143J- 3R3 R36 QRD141J- 392 R37 QRD141J- 392 R38 QRD141J- 392 R39 QRD141J- 392 R40 QRD143J- 472 R41 QRD143J- 472 R42 QRD123J- 561 R43 QRD143J-472 R44 QRD143J- 472 R45 QRD123J- 561 R46 QRD123J- 561 R47 QRD123J- 561 R48 QRD143J-471 R49 QRD143J- 220 R50 QRD143J- 103 R51 QRD143J- 101
No.
Rating
1kn
1Mn
Description Carbon
10kn
1 kn
10kn
1 kn
7kn 47kn 47kn 8kn 7kn
2 kn 47 kn
390 kn kn kn
Metalized Film
Carbon
7 kn
kn
Metalized Film
8 kn
330 kn
Carbon
22 kn
kn
12 kn
390 n
kn
68n
100 n
Metalized Film Carbon
kn
kn
560 n
Y:,W
7 kn
560 n
Y:,W
470 n
22n
10 kn
100 n
20-
QL-
No. 2464
Resistors Parts Number No.
Resistors
Rating
3 k.l1
4:7 k.l1
Description
Metalized Film
R52 R53 R55 R58 R59 R60
R61
R E35YQ- 3KF RE35YQ- 7KF
R62 R63 R64 R66 R67 R68 R69 R70
R71
R72 R73 R74 R76
QRD143J- 473 RE35YQ- 15KF RE35YQ- 6KF QRD146J- 100 QRD143J- 103 QRD143J- 103 QRD143J- 103 QRD143J- 473 QRD143J- 153 QRD143J- 103 QRD143J- 102 QRD143J- 273 QRD143J- 104 QRD143J- 104 QRD143J- 182 QRD143J- 104 QRD143J- 122 QRD143J- 102
47 k.l1 15 k.l1
k.l1
Carbon Metalized Film
Carbon
10.11 10 k.l1
Parts Number R77 QRD143J- 562 R78 QRD143J- 561 R80 QRD143J- 102 VR1 RVAV310- 472 VR2 RVGV811- 472 VR4 RVGV413-473 VR5 RVGV811- 103
No.
Rating
6 k.l1
Description Carbon
Variable
560.11
1 k.l1 7 k.l1
47 k.l1 10 k.l1
47 k.l1 15 k.l1 10 k.l1
1 k.l1
27 k.l1
100 k.l1
Others
No.
Parts Number
LA-O303 E03732-0 15A
Rating
Description
Quartz Crystal Plug
k.l1 100 k.l1 k.l1 1 k.l1
E65674
QSPO026-001
Heat Sink Push Switch
11- (2) TPS- 206
Fuse P . C.
Board Ass
Part Number
See back page.
(Different in Different Area , see back page)
Item No.
Cl01
Description Capacitor ffi Fuse ffi Fuse clip ffi
ffi : Safety Parts
1 2.
Accessories List
S. Military
Description
I nstruction Book
Warranty Card
Canada
Europe
Australia
E30580-717A
BT20032
E30580- 717A E30580- 717B BT20025
E30580- 717 A E30580- 717B
E30580- 717A
BT20013B
E30580- 717A
Market and Other Cou ntries E30580- 717A
BT20029
BT20032
(U. S.
Military
Market)
Special
Replay Card
BT20024B
Service Procedure
Siemens Plug
Screw Ass
BT20023
E04066
(Other Countries)
E61153-003
E48820- 001
E64207- 001
E61153- 003
E48820- 001
E64207- 001
E61153- 003
E48820-001
E48820- 001 E64207- 001 E48820- 001 E64207- 001 E48820- 001 E64207- 001
(for Cartridge)
E.P. Adapter
Envelope
E64207-001
QL-
No. 2464
- 21 -
14. Packing Materials and
E34725-002
Nylon Covering
Part Numbers
E36997- 020 Protect Sheet
E22949- 002
Sheet Ass
G6771Caution Label
E22934-001
Platter Case
NZ- QLF6 Packing Sheets
and Pad
E61848-001 Plate
E22493- 311
Corner Pad
PK- QLF6E Carton Box
24-
QL-
No. 2464
15. Parts List with Specified Numbers for
Designated Areas
Item
No.
Description
Motor Board Ass
Canada
E 10302- 004
Europe
E 1 0302-004 MP- 201S
E 10302- 003
s. Military
Austral ia
E 1
Market and
E 1 0302-004
0302.004
Tonearm Ass
Servo Control C. Board Ass
ARM- 529
ARM- 529
ARM- 529
MP- 201S
Other Cou ntries E 1 0302- 002 MP- 201S
MDC938G-
MDC938G-
MDC938G-
MDC938G-
MDC938GTPS- 206GBS OFZ9007- 104BS OMF51A2- R20BS (0. 2 AT) OMF51 A2- R80BS
(O.8A T)
MDC938GTPS- 206F
Fuse
P . C.
Board Ass
C101
Capacitor it
Fuse (Primary) it
TPS- 206B TPS- 206C TPS- 206E OFH72BM-473M OF A 72BM- 4 73M OFZ9007- 104 OMF61 U1- R50 OMF61U1- R50 OMF51A2- R20 (0. 5 AI (0. 5 A) (0. 2 AT)
TPS- 206D OFZ1007- 104 OFH53AM- 104 OMF51A2- R20 OMF60S1- R50
Fuse (Secondary)
OMF61U1- 1RO
(1A)
OMF61U1- 1RO
FuseClipit
Shield Cover Power
Transformer it
E45524-001
(lA) E45524- 001
OMF51A2- R80
(O.8AT)
(0.5 A) (0. 2 AT) OMF51 A2- R80 OMF60S1- R80 (0. 8A) (0. 8AT)
E48965- 002 E65716-001 E03032-33C E61796-003 OMP3910- 244 A37897 E65893.o01 E22936-001
E48965- 002 E65716-001
E03032- 33CBS E61796-003 OMP9017-007BS A37897BS E65893-001
E 22936- 00
1
E48965- 002 E65716.o01
E45524-001 E65716-001
E03032-33D E61796.o03 OMP1200- 200 A37897 EG5893.o01 E22936.o01
E03032- 33B
OMP1200- 200 OHS3876- 162 E65893-002
E03032- 33B
OMP1200- 200 OHS3876- 162 E65893- 002 E22936-002
Rubber Sheet
Power Cord it Cord Bushing Foot Ass
Turntable Sheet
E22936.o02
E03032- 33C E61796-003 OMP2500- 200 A37897 E65893-001 E22936.o01
JVC
VICTOR COMPANY OF JAPAN , LIMITED , TOKYO , JAPAN
V 8012-
AI Printed in Japan
13. QL-
Schematic Diagram
i Motor 1
i HG-1
I r-:
II
r -
r- t~L I ~~E Ii 8~ FG ~~R
, rp;;;I EART 'bW
IRE I 250794 25B605(K L)
25A733(P'K)
25A733(P'Q)
251
25C641K(B C) 25C945(K
HG-2 I
I B
C~/7 E
X9 -X'
XI-X4
X5-XB, X15-X24
1"11,1I!11~11.11111,1I,1 . r
~I-. -
l::_N-'='f--~ ~
r,... f--;:;-;;;
lr~l 1 a: lJlJ=;--(g,~ SPE~SELECT SW. f-O! ~ J o---L'::"
.J 5tgnalclrcultafQL-
f--~
;:: a, ;;;--0 - N
Lf---- -
c- .J
(2;!
~4.
TMoc 938
GJ ,
grml
~~/2W i7V1
R61 10K
~~Z; CD Gf
C' ~ O
-v I R23
PITCH CONTROL METE
=:~ D~
7K 47K
RI
f-- W:'
R40
~~ X
R45 1/2W
R41
7K g,1V
~ 1
I+V
5600
~~7 ~1
0" /35V
I R72 ;~V (
1.BK 0
1 c
Tg~
R42
1I2W 560(1
(Q)!23.
rn ~
~O )(
4)-' ~ ~Jo, + R62 330
I ~+
m 5 4.:'3K I+V L.. I K 1!J1
R76
l ~ 3.
R52
R21M ~,3 P IC4
/IJ Jcl F-' D11 c
C2~ 10)J ~v
(!l
,:J)
R64 47K
!OK
1?t
X24
gl!!2'!J ~
:~'M
FIN
RI5
47K
47K
RI4 47K
R5~
47'
'O ~~:IT
I 1/
9K 3. 9K
i~?25V ~3
NP ~1i3:5Vl f~
9K 3. 3.~ NP . I 16
.I
~~1
/~40ms
R70
lOOK
0 3
/25V ~~3
ib~
C17 C16 ~ " 33P, 33P R16
R66 1. v
~~; I---.: ~D,
1Y-#~%~3
o~
C2 C23
.J..
/: 55
~g2 C~~7 --
r;:
14 -4
:' ;I,
h ~ tR 31 W;"'1 r: 6!l m li,
o:~ o
R33 1W l2..-'!J
455 \(IVI~
240V BLU
rn~~
E03032 - 33C BS P.TRANS
R79 I~?'.' D3
CB 7~1
n: / R7 C0-0",%Ji'.""-0 IK ~ 33K 10 25V 2VI. C69 0
R68
101
~'T" )if
12 11
I+V I
:i
7K
0(Q)G5Vl
0~13.
01 0047 ~
CZ4 001
PICTH CON
1C3 "~NO.
\~ \J1 \his 0.455RED Vcc
~n+-+ ~::\IC3"'t,"IQ. ~
EP&EU(forPacex&Otherareas)
E03032 - 33D P. TRANS
120V BLU
I )~om
"' PICTH r1\ol1",,' n 3.5VI 0 I~BVI'; 9V 0 59VI, 0\/1 3.7V n LOCK 0 6V3.6V3.6V3.6VI0 0 0 0 7. 4V 0 7.
31415
8 9 10 11 12
EBS(forEngland)
220VGRY
0 BRN
l-Q:~yf
\~I
VOLTAGE SELECTOR
I ~~
PILOT LAMP OAG L,
lZV 4DmAx4
EJ & EC ( for
rpS-
206GBS
106
IrPS- 2o6DT
) OIAGRAM ',0V
C101
01~/450VAC110, 120. 220, 240V
SO/60Hz
SW.
L_~Wl (POWER)
SW. 2 (POWER)
SW. 2(POWER)
Notes:
1. The voltage indicated in
c:::::J 33- 1/3 rpm
(Q) c::J 45 rpm
is measured by a tester having an internal impedance 33kD..
indicat, indicat, 4. When replacir
3.
2.
(!) c::J when locked
5. This is the sta
The design an
22 -
(fq
25D325 (D, F)
25C2259 (F, G)
15553 15953
VDI220
RD24EB3
W02
NJM4558D- D. NJM4558D
-7, /
X14
X 13
D4~D9, DIO~DI2 D'5 , DI6
D3, D13, D14
AC DI
I 2
IC4, IC5
NJM78L08A
VC4046
MSM4001
Out
METER (t270)JA)
IC2
GRY ORG
RI3
FUSE 2
R77
Cia
R58
15K
E03032P. TRANS REO
O11500V I
REO
rips-iaGAr
C12
47~125
Im
RIO 6.
104
R55 A7K
RI2 4.
G'I
RI7
1.8 R19
CP Out STOut 33L145H RC
15 13
HC Oul
R20
IlK
R21
27K
l.aK
C35 I
0.047 I
CP In FsOut Fs In
FG In RC HC Oul
F/V
----v--------'
X 1- X4
GNO
12 13
GRN LAMP QL QL ON
QL OFF 0
i LAMP
V 14 In.
. TPI
BRN CD BL
Uli lC3t,W,~NO. I 6KHz
2..:..~
GND I
250794 2SA733 (P
25B605 (K,
25C2259 (F
2~, 0325iV(D
X 5 - X8 X9- XI2
XI3
(Q) GND
QUARTZ
X 14 X 16
2SA733 (P
2~A:945
( K.
EE & EA(for Europe& Aushalia)
25C641 K( B
XI5 X17-XI9, X22-X/27 X20 X21
Ir USA & Canada)
EO3032-33B P. TRANS
ORG
E03032 - 33C P. TRANS . 240V BLU
W02 RO5. 6EKVM2 VD1220
D3,
, 07 0 II
15553 15953
VC4046 NJM78LO8A M5M4001
ICI
09,
IC2 lC3 IC4
1C5
NJM45580NJM45580
AC 220V- 50Hz lEE)
AC' 240V- 50Hz lEA)
...J
5W. 2 (POWER)
Ites positive B power supply. Ites the signal path.
:ing the parts ill
). be sure to use the designated parts to ensure safety. in the darkened ares ( tandard circuit diagram. md constants are subject to change without notice.
QL-
No. 2464