Pioneer PLX-1000 User manual

ORDER NO.
PIONEER CORPORATION 1-1, Shin-ogura, Saiwai-ku, Kawasaki-shi, Kanagawa 212-0031, Japan
PIONEER ELECTRONICS (USA) INC. P.O. Box 1760, Long Beach, CA 90801-1760, U.S.A.
PIONEER EUROPE NV Haven 1087, Keetberglaan 1, 9120 Melsele, Belgium
PIONEER ELECTRONICS ASIACENTRE PTE. LTD. 253 Alexandra Road, #04-01, Singapore 159936
2014 Printed in Japan
PLX-1000
RRV4511
TURNTABLE
PLX-1000
THIS MANUAL IS APPLICABLE TO THE FOLLOWING MODEL(S) AND TYPE(S).
Model Type Power Requirement Remarks
PLX-1000 LPSYXE8 AC 110 V to 120 V or 220 V to 240 V
PLX-1000 FUXECB AC 110 V to 120 V or 220 V to 240 V
K-MZV AUG.

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SAFETY INFORMATION
WARNING
This product may contain a chemical known to the State of California to cause cancer, or birth defects or other reproductive
harm.
Health & Safety Code Section 25249.6 - Proposition 65
This service manual is intended for qualified service technicians; it is not meant for the casual do-it-
yourselfer. Qualified technicians have the necessary test equipment and tools, and have been trained
to properly and safely repair complex products such as those covered by this manual.
Improperly performed repairs can adversely affect the safety and reliability of the product and may
void the warranty. If you are not qualified to perform the repair of this product properly and safely, you
should not risk trying to do so and refer the repair to a qualified service technician.
1. SAFETY PRECAUTIONS
The following check should be performed for the
continued protection of the customer and service
technician.
LEAKAGE CURRENT CHECK
Measure leakage current to a known earth ground
(water pipe, conduit, etc.) by connecting a leakage
current tester such as Simpson Model 229-2 or
equivalent between the earth ground and all exposed
metal parts of the appliance (input/output terminals,
screwheads, metal overlays, control shaft, etc.). Plug
the AC line cord of the appliance directly into a 120 V
AC 60 Hz outlet and turn the AC power switch on. Any
current measured must not exceed 0.5 mA.
ANY MEASUREMENTS NOT WITHIN THE LIMITS
OUTLINED ABOVE ARE INDICATIVE OF A POTENTIAL
SHOCK HAZARD AND MUST BE CORRECTED BEFORE
RETURNING THE APPLIANCE TO THE CUSTOMER.
2. PRODUCT SAFETY NOTICE
Many electrical and mechanical parts in the appliance
have special safety related characteristics. These are
often not evident from visual inspection nor the protection
afforded by them necessarily can be obtained by using
replacement components rated for voltage, wattage, etc.
Replacement parts which have these special safety
characteristics are identified in this Service Manual.
Electrical components having such features are
identified by marking with a >on the schematics and on
the parts list in this Service Manual.
The use of a substitute replacement component which
does not have the same safety characteristics as the
PIONEER recommended replacement one, shown in the
parts list in this Service Manual, may create shock, fire,
or other hazards.
Product Safety is continuously under review and new
instructions are issued from time to time. For the latest
information, always consult the current PIONEER Service
Manual. A subscription to, or additional copies of,
PIONEER Service Manual may be obtained at a nominal
charge from PIONEER.
Leakage
current
tester
Reading should
not be above
0.5 mA
Device
under
test
Test all
exposed metal
surfaces
Also test with
plug reversed
(Using AC adapter
plug as required)
Earth
ground
AC Leakage Test
(FOR USA MODEL ONLY)

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CONTENTS
SAFETY INFORMATION.......................................................................................................................................................... 2
1. SERVICE PRECAUTIONS .................................................................................................................................................... 4
1.1 NOTES ON SOLDERING ............................................................................................................................................... 4
1.2 NOTES ON SERVICING................................................................................................................................................. 4
2. SPECIFICATIONS................................................................................................................................................................. 5
3. BASIC ITEMS FOR SERVICE .............................................................................................................................................. 6
3.1 CHECK POINTS AFTER SERVICING ........................................................................................................................... 6
3.2 JIGS LIST ....................................................................................................................................................................... 6
3.3 PCB LOCATIONS ........................................................................................................................................................... 7
4. BLOCK DIAGRAM ................................................................................................................................................................ 8
4.1 OVERALL WIRING DIAGRAM ....................................................................................................................................... 8
4.2 AUDIO SYSTEM BLOCK DIAGRAM............................................................................................................................ 10
5. DIAGNOSIS ........................................................................................................................................................................ 12
5.1 TROUBLESHOOTING.................................................................................................................................................. 12
6. SERVICE MODE ................................................................................................................................................................. 14
7. DISASSEMBLY ................................................................................................................................................................... 15
8. EACH SETTING AND ADJUSTMENT ................................................................................................................................ 22
9. EXPLODED VIEWS AND PARTS LIST............................................................................................................................... 24
9.1 PACKING SECTION ..................................................................................................................................................... 24
9.2 EXTERIOR SECTION .................................................................................................................................................. 26
10. SCHEMATIC DIAGRAM.................................................................................................................................................... 28
10.1 MAIN PCB, SEARCHLIGHT and SPEED PCB ASSYS ............................................................................................. 28
10.2 D.D. MOTOR ASSY, SENSOR PCB and PHONO PCB ASSY ................................................................................... 30
10.3 STOROBOSCOPE, PLAY PCB and AC PCB ASSYS................................................................................................ 32
11. PCB CONNECTION DIAGRAM ........................................................................................................................................ 34
11.1 MAIN PCB, SEARCHLIGHT and SPEED PCB ASSYS ............................................................................................. 34
11.2 D.D. MOTOR ASSY, SENSOR PCB and PHONO PCB ASSY ................................................................................... 38
11.3 STOROBOSCOPE, PLAY PCB and and AC PCB ASSYS......................................................................................... 42
12. PCB PARTS LIST.............................................................................................................................................................. 43

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1. SERVICE PRECAUTIONS
1.1 NOTES ON SOLDERING
1.2 NOTES ON SERVICING
• For environmental protection, lead-free solder is used on the printed circuit boards mounted in this unit.
Be sure to use lead-free solder and a soldering iron that can meet specifications for use with lead-free solders for repairs
accompanied by reworking of soldering.
• Compared with conventional eutectic solders, lead-free solders have higher melting points, by approximately 40 ºC.
Therefore, for lead-free soldering, the tip temperature of a soldering iron must be set to around 373 ºC in general, although
the temperature depends on the heat capacity of the PC board on which reworking is required and the weight of the tip of
the soldering iron.
Do NOT use a soldering iron whose tip temperature cannot be controlled.
Compared with eutectic solders, lead-free solders have higher bond strengths but slower wetting times and higher melting
temperatures (hard to melt/easy to harden).
The following lead-free solders are available as service parts:
• Parts numbers of lead-free solder:
GYP1006 1.0 in dia.
GYP1007 0.6 in dia.
GYP1008 0.3 in dia.
For final-check playback after repair, a commercially available record and a cartridge are required.
The details, see "3.2 JIGS LIST".

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2. SPECIFICATIONS
Power requirements......AC 110 Vto 120 Vor 220 Vto 240 V, 50 Hz/60 Hz
Power consumption ...............................................................................9 W
Main unit weight................................................................. 13.1 kg (28.9 lb)
Max. dimensions........................ 453 mm (W) × 159 mm (H) × 353 mm (D)
(17.8in. (W) × 6.3 in. (H) × 13.9 in. (D))
Tolerable operating temperature........... +5 °C to +35 °C (+41 °F to +95 °F)
Tolerable operating humidity....................... 5 % to 85 % (no condensation)
Turntable part
Drive method ........................................................... Servo type direct drive
Motor ............................................................. 3-phase brushless DC motor
Braking system.................................................................. Electronic brake
Rotation speed ..............................................................33 1/3 rpm, 45 rpm
Rotation speed adjustment range............................... ±8%, ±16 %, ±50 %
Wow and flutter......................................... 0.1 % or less WRMS (JIS WTD)
S/Nratio.................................................................................70 dB (DIN-B)
Turntable..................................... Aluminum die-casting Diameter: 332 mm
Starting torque................................................................ 4.5 kg·cm or more
Start time......................................................... 0.3 seconds (at 33 1/3 rpm)
Tone arm part
Arm type .................................................Universal type S-shape tone arm,
gimbal-supported type bearing structure, static balance type
Effective length ............................................................................... 230 mm
Overhang.......................................................................................... 15 mm
Tracking error........................................................................... Within 2° 32’
Arm height adjustment range ............................................................. 6 mm
Stylus pressure variable range .......................... 0 g to 4.0 g (1 scale 0.1 g)
Proper cartridge weight ............................... 3.5 g to 13 g (single cartridge)
When shell weight is used...................................................... 3.5 g to 6.5 g
When only balance weight is used .......................................... 6.0 g to 10 g
When sub weight is used......................................................... 9.5 g to 13 g
— The specifications and design of this product are subject to change
without notice.
Accessories
• Turntable
(702-PNTT-075)
• Turntable sheet
(705-DJ1900-078)
• Slip mat
(612-PNTT-095)
• Slip sheet
(505-PNTT-248)
• Dust cover
(705-PLX1000-1583)
• Adapter for EP record
(200-PNTT-211A)
• Balance weight
(702-PNTT-076)
• Sub weight
(200-PNTT-693)
• Headshell
(703-PNTT-1411)
• Shell Weight
(200-ST100-268)
• Power Cord
(LPSYXE8: 409-HDJ7100-055D-HA)
(FUXECB: 409-HDJ7100-054D-HA)
• Audio Cable
(408-PLX-140)
• Ground Wire
(406-PLX-1288)
• Operating instructions
(LPSYXE8: 502-PX1000B-3366)
(FUXECB: 502-PX1000A-3365)

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3. BASIC ITEMS FOR SERVICE
3.1 CHECK POINTS AFTER SERVICING
3.2 JIGS LIST
No. Procedures Check points
Items to be checked after servicing
To keep the product quality after servicing, confirm recommended check points shown below.
Distortion
Noise
Volume too low
Volume too high
Volume fluctuating
Sound interrupted
See the table below for the items to be checked regarding audio.
Item to be checked regarding audio
6 Check the appearance of the product. No scratches or dirt on its appearance after receiving it for service.
1 Confirm whether the customer complain has been solved. The customer complain must not be reappeared.
Audio and operations must be normal.
5 Check the PHONO OUT signals. Play a record back and check that the audio output from the
PHONO OUT terminals is normal.
(For checking, use a pre-main amplifier or a DJ mixer provided with
the PHONO input terminals.)
3 Check playback operations. The turntable must turn or stop properly when the START/STOP
button is pressed.
When the RESET button is pressed, the RESET indicator must
light in yellow-green and the rotation speed must return to the
specified speed.
The tone arm must move properly when the lifter lever is moved up
or down.
4 Check the pitch adjustment. Press the RESET button during playback (the RESET indicator
goes dark) and check whether the pitch can be adjusted, using the
TEMPO slider and TEMPO RANGE button.
2 Check whether the unit can be turned ONor OFF. The indicators on the unit must light when the unit is turned ON.
Jigs List
Lubricants and Glues List
Name Part No. Remarks
Adhesive GYL1001 Refer to "9.2 EXTERIOR SECTION".
Jig Name Part No. Purpose of use / Remarks
For checking playback operations and the audio
output from the PHONO OUT terminals
Cartridge (Marketed product)
Recommended product:
M44-7 manufactured by SHURE
For checking playback operations and the audio
output from the PHONO OUT terminals
LP record or EP record (Marketed product)
Registered the Dust cover (705-PLX1000-1583) as a jig for
services.
You have to procure four pieces of cushion to be placed at
the four corners of the dust cover where the turntable is to
contact on your own, in order to prevent the top panel of this
unit from being damaged.
Spacer Dust cover (GGP1243)
or
To be placed at the four corners of the unit when
diagnoses are to be performed with the unit upside
down
Four cylindrical wood offcuts, etc.,
of 40 mm dia. × 80 mm in length
or longer

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3.3 PCB LOCATIONS
1..MAIN PCB ASSY 704-PLX-A787
1..SPEED PCB ASSY 704-PLX-A790
1..PHONO PCB ASSY 704-PLX-A791
1..D.D. MOTOR ASSY 704-PLX-A800
1..SEARCHLIGHT ASSY 704-PLX-A802
1..STROBOSCOPE ASSY 704-PLX-A803
>1..AC&PLAY PCB ASSY 704-PLX-A863
NSP 2..AC PCB ASSY • • • • •
NSP 2..PLAY PCB ASSY • • • • •
Mark No. Description Part No.
LIST OF ASSEMBLIES
NOTES:
-
Parts marked by “NSP” are generally unavailable because they are not in our Master Spare Parts List.
-
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.
F
STROBOSCOPE
ASSY
E
PHONO PCB ASSY
H
AC PCB ASSY
G
PLAY PCB ASSY
A
MAINPCB ASSY
B
SEARCHLIGHT
ASSY
C
SPEED
PCB ASSY
D
D.D. MOTOR
ASSY

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4. BLOCK DIAGRAM
4.1 OVERALL WIRING DIAGRAM
CNA1
AC
CN03
LIVE
EARTH
NEUTRAL
CHASSIS GND
CN201
CN02
SW201
TRANS
CARTRIDGE
CNA
Except
Japan model
AC
SELECT
SW
1
2
3
1
2
1
2
3
1
2
3
1
2
3
JK601
Rch
SOFTW
CN307
JK602
Lch
W303A CN303
GND
1
2
3
4
5
6
1
2
3
4
5
6
1 2 3 4 5 6 7
/RST
REQ
MISO MOSI
SCK PCS
33V
GND
PL/ST
STRO
PL/STLED
5V
8V
A
MAIN PCB ASSY
(704-PLX-A787)
G
PLAY PCB ASSY
PLAY PCB ASSY
F
STROBOSCOPE
ASSY
(704-PLX-A803)
AC&PLAY PCB ASSY
(LPSYXE8, FUXECB: 704-PLX-A863)
(JXE: 704-PLX-A864)
E
PHONO PCB ASSY
(704-PLX-A791)
H
AC PCB ASSY
AC PCB ASSY

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1515
15
+
G
-
G
C
C
G
MO1
W102
CN901
IC103
ENCODER
CN103
TRANS
CNA
AC
SELECT
SW
1
2
3
4
5
1 2 3 4 5 6 7 8 9
11 12
13
14 10
1 2 3 4
MOTOR
+15V GND - 15V LA LC LB HB HA GND CHA CHB 5V GND 8V
GND
CHA
VCC
CHB
W103
W302A
SOFTWARE UPDATA
CN308
CN302
CN304A
CN304
1 2 3 4 5 6 7 8 9
11 12
13
14 10
1 2 3 4 5 6 7 8 9
11 12
13
14 10
1
2
3
4
5
6
1
2
3
4
5
6
1
2
1
2
3 4 5 6 7 8 9
1 2 3 4 5
GND
33
45
33LED
45LED
5V
8V
GND
MISO MOSI
SCK PCS
3.3V
GND
UPDA
3.3V
SWD_DIO
GND
SWD_CLK
/RST
-When ordering service parts, be sure to refer to "EXPLODED VIEWS and PARTS LIST" or "PCB PARTS LIST".
-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.
SSY
87)
B
SEARCHLIGHT
ASSY
(704-PLX-A802)
C
SPEED PCB ASSY
(704-PLX-A790)
D
D.D. MOTOR ASSY
(704-PLX-A800)
SENSOR PCB

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4.2 AUDIO SYSTEM BLOCK DIAGRAM
POWER
MCU D/A
OSC
DRIVE I
Function Selection
TMPO
PWM
AC INCommon Mode
Choke
Voltage Selection
SW
POWER
ON/OFFSW
and LED D
IC306
MKL15Z128VLK4
X301
8MHz
SW201
IC301 to IC305
NJM4580
FL01
Except
Japan model
IC101, IC
NJM214
IC901 to IC9
NJM7808/7
NJM7824/7
NJM7815/7
POWER
IC309
BA033
IC307
BD4745
RESUME
IC312
74HC4050
IC311
BD4730
RESET
A
MAIN PCB ASSY
D
D.D. MOTOR ASSY
H
AC PCB ASSY

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R CH OUTPUT
POWER
DRIVE IC HALL IC
FG
COIL
DRIVE TR
DRIVE TR
DRIVE TR
PHONO
L CH OUTPUT
PHONO
ection
DC
JK601
JK602
IC101, IC102
NJM2147
Q103, Q104
2SD2615, 2SB1674
2SD2615, 2SB1674
2SD2615, 2SB1674
Q105, Q106
Q107, Q108
HE11 to HE13
IC103
HEDS9700F51
IC901 to IC905
NJM7808/7805
NJM7824/7924
NJM7815/7915
PHONO OUTPUT
RED
GREEN
WHITE
BLUE
GND
TONEARM
1
2
3
4
5
CARTRIDGE
CHASSIS
MOTOR ASSY
E
PHONO PCB ASSY

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5. DIAGNOSIS
5.1 TROUBLESHOOTING
Ye s
NoSecurely plug in the Power cord.
The unit is not turned ON.
Is the Power cord
securely plugged in?
The specified rotation speed
cannot be changed.
The proper voltage (3.3 V) may not
be output from IC309 on the MAIN
PCB Assy.
Check that there is proper
conduction between the plane
of IC309 on the MAINPCB Assy
and GND.
No LEDs light nor do keys work
even after the POWER switch is
turned.
NoSwitch the voltage selector
properly.
If voltage ranging from 110 to 120 Vis input
with the voltage selector set to 220-240 V,
the turntable cannot rotate, even though all
LEDs on the panel are dimly lit.
* This problem actually occurred
with a sample product.
The turntable does not rotate, even
though the unit is turned ON.
Is the voltage selector
properly switched?
NoRemove any foreign matter.
Is there any foreign
matter between the
turntable and motor?
NoRemove any foreign matter.
Is there any foreign
matter between the
turntable and motor?
Ye s
No
Ye s
Replace the POWER switch.
Does the POWER switch
(SW201) on the
PLAY PCB Assy work?
Ye s
NoSecurely connect them.
Are CN901 and CN103 on
the D.D. MOTOR Assy
securely connected?
Ye s
No
Ye s
NoReplace the switch.
Does the PL/ST switch
(SW202) on the
PLAY PCB Assy work?
Ye s
NoReplace the faulty switches.
Do the tact switches
(SW203/204) on the
SPEED PCB Assy work?
Ye s
No
The command is not input to the
CPU. Replace the MAINPCB Assy
then the SPEED PCB Assy,
in that order.
Do the strobe patterns change
after the TEMPO RESET button
is set to ONthen the [33]
or [45] button is pressed?
Ye s
NoThe LED is in failure. Replace the
LED (D203/204) on the SPEED
PCB Assy or SPEED PCB Assy.
Does the [33] or [45] button
LED light or go dark when
the corresponding button
is pressed?
Ye s
Ye s
NoThe control system is in failure.
Replace the MAINPCB Assy.
Does the START/STOP
button LED light when the
button is pressed?
Ye s
Ye s
No
The circuitry may have been
shorted out. Replace the
D.D. MOTOR Assy then the
MAINPCB Assy, in that order.
Are the chip fuses (P03/05/06/07)
on the D.D. MOTOR Assy
intact (not blown)?
Ye s
The circuitry may have been
shorted out. Replace the
D.D. MOTOR Assy then the
MAINPCB Assy, in that order.
Some part may be in failure.
Replace the AC&PLAY PCB Assy, transformer, D.D. MOTOR Assy, then the
MAINPCB Assy, in that order.
The motor or the control system may be in failure.
Replace the D.D. MOTOR Assy then the MAINPCB Assy, in that order.
The motor may be in failure.
Replace the D.D. MOTOR Assy.
Is the chip fuse (P04) on
the D.D. MOTOR Assy intact
(not blown)?
NoThe circuitry may have been
shorted out. Replace the
AC&PLAY PCB Assy.
Is the fuse (FU01) on
the AC PCB Assy intact
(not blown)?
[1] Abnormality regarding startup

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Ye s
NoReplace the switch.
OK
The pitch does not change even if
the TEMPO slider knob is moved.
Does the tact switch
(SW301) on the MAIN
PCB Assy work?
Does the tact switch
(SW301) on the MAIN
PCB Assy work?
Does the tact switch
(SW301) on the MAIN
PCB Assy work?
Does the tact switch
(SW301) on the MAIN
PCB Assy work?
NoReplace the switch.
NoReplace the switch.
NoReplace the switch.
Ye s
Ye s
Ye s
Ye s
The TEMPO cannot be reset.
NoReplace the switch.
The tempo range cannot be
changed.
Ye s
No
Only the LEDs may be in failure.
Replace the LEDs (D313–315) on
the MAINPCB Assy.
If you move the TEMPO slider knob to
the end of the + side then press the
TEMPO RANGE button, do the
strobe patterns change?
No
The VR data may not be input to the
CPU (thus, the same rotation speed is
maintained). Check if VR301 on the
MAINPCB Assy has any problem,
referring to "The pitch does not change
even if the TEMPO slider knob is
moved." If it does not have any
problem, replace the MAINPCB Assy.
If you move the TEMPO slider
knob while the TEMPO RESET
LED is unlit, do the strobe
patterns change?
Ye s
No
Is the LED (D312) on the MAIN
PCB Assy lit? If it is not, only the
LED (D312) may be damaged but
the TEMPO RESET button may
work properly. Replace the LED (D312).
No
Is the LED (D312) on the MAIN
PCB Assy lit? If it is not, only the
LED (D312) may be damaged but
the TEMPO RESET button may
work properly.
Replace the LED (D312).
Ye s
No
Replace the D308–311 on the
STROBOSCOPE Assy,
STROBOSCOPE Assy, or
AC&PLAY PCB Assy.
*Check method with the aid of a tester
When the VR is turned toward TEMPO +, the resistance between D318
and GND must become closer to 0 ohm.
The resistance between D316 and GND must be approximately 1.5 kohms.
When the VR is turned toward TEMPO –, the resistance between D318and
GND must be approximately 1.5 kohms. The resistance between D316 and
GND must become closer to 0 ohm.
Strobe Lock is not available.
Are the strobe LEDs lit?
Ye s
Ye s
Ye s
NoReplace VR301on the MAINPCB
Assy.
Does VR301 on the
MAINPCB Assy
work* properly?
Ye s
The VR data may not be input to the CPU or the motor may be
uncontrollable.
Replace the MAINPCB Assy then the D.D. MOTOR Assy, in that order.
The TEMPO Reset command may not be input to the CPU or the motor
may be uncontrollable. Replace the MAINPCB Assy then the D.D. MOTOR
Assy, in that order.
The TEMPO Range command may not be input to the CPU or the motor
may be uncontrollable.
Replace the MAINPCB Assy then the D.D. MOTOR Assy, in that order.
The same rotation speed is maintained.
1The VR data may not be input to the CPU. Check if VR301 on the MAIN
PCB Assy has any problem, referring to "The pitch does not change even
if the TEMPO slider knob is moved."
2The rotation speed may not be controlled properly.
Replace the MAINPCB Assy.
3The motor may be in failure. Replace the D.D. MOTOR Assy.
No
Does the TEMPO RESET LED
light or go dark when the TEMPO
RANGE button is pressed?
Replace the LED (D312) on the
MAINPCB Assy.
Replace the LED (D312) on the
MAINPCB Assy.
Ye s
Ye s
Ye s
No
Does the TEMPO RESET LED
light or go dark when the
SW301 on the MAINPCB Assy
is pressed?
Ye s
No
If you move the TEMPO slider knob to
the end of the + side while the TEMPO
RESET LED is unlit then press the
TEMPO RANGE button, is strobe locked?
If you move the TEMPO slider knob to
the end of the + side while the TEMPO
RESET LED is unlit then press the
TEMPO RANGE button, do the strobe
patterns change?
If you move the TEMPO slider knob to
the end of the + side while the TEMPO
RESET LED is unlit then press the
TEMPO RANGE button, do the
strobe patterns change?
[2] Abnormality regarding the operating elements and LEDs
NoRemove any foreign matter.
Is there any foreign
matter between the
turntable and motor?
NoRemove any foreign matter.
Is there any foreign
matter between the
turntable and motor?
Does the tact switch
(SW302) on the
MAINPCB Assy work?

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6. SERVICE MODE
There is no information to be shown in this chapter.
Ye s
NoSecurely connect them.
Audio is not output.
Are the RCA cables
securely connected?
No
Repair any solder bridge or
resolder any unsoldered part.
If there is any pattern
disconnection, replace the
PHONO PCB Assy.
Are there solder bridges
or disconnection in the
PHONO PCB Assy?
Ye s
Securely attach it.
The internal wiring is disconnected.
Replace the Tone Arm Assy.
Ye s
No
Is the headshell
securely attached?
[3] Abnormality regarding audio
RCA output during playback with the TEMPO
RESET button set to ON, at 1 kHz, 0 dB
Waveforms
CH1: JK602 OUTPUT (L ch)
V: 20 mV/div. H: 10 mS/div.
1
CH2: JK601 OUTPUT (R ch)
V: 20 mV/div. H: 10 mS/div.
2
1
2

15
PLX-1000
56 7 8
56 7 8
A
B
C
D
E
F
7. DISASSEMBLY
Notes on performing diagnosis with the unit turned upside down (on how to secure the tone arm, etc.):
Be sure to secure the tone arm with the hook for the tone arm before turning the unit upside down.
Remove the items that can fall, such as the turntable and turntable sheet, from the unit beforehand.
Be sure to use the spacers or a dust cover (GGP1243) dedicated for repair use (NOT the customer's own dust
cover) before turning the unit upside down.
[1] MAIN, AC, PLAY, SPEED PCB Assemblies
[1-1] Exterior Section
(1) Remove the SPEED button.
(2) Turn the unit upside down.
Note:
Before turning the unit upside down, be sure to
place the spacers or dust cover so that no load is
applied to the tone arm, etc.
As the dust cover is not so strong, be careful not
to apply a heavy load.
(3) Remove the 4 Foot Assys.
Note:
The Foot Assy is a screw-in foot.
Disassembly for each Assemblies
1
SPEED button
Note:
Even if the unit shown in the photos and illustrations in this manual may differ from your product, the
procedures described here are common.
3 3
3 3
• Bottom view
Dust cover
Dust cover
Put a 4 cushion on the contact part of 4 corners of
the Dust cover to prevent you from injuring Top panel.
Cushion

16 PLX-1000
12 3 4
A
B
C
D
E
F
12 3 4
(4) Remove the bottom section by removing the
11 screws.
(602-BTB0311-765B)
(1) Disconnect the 4 connectors.
(CN103, 302 to 304)
(2) Remove the MAINPCB Assy by removing the
8screws.
(602-DM3000-270)
4×11
1
1×3
2×8
CN103
CN304
CN302
CN303
MAINPCB Assy
D.D. MOTOR
Assy
D.D. MOTOR
Assy
SPEED PCB Assy
MAINPCB Assy
PHONO PCB Assy
AC PCB Assy
PLAY PCB Assy
• Bottom view
• Bottom view
[1-2] MAIN PCB Assy
Diagnosis
Dust cover

17
PLX-1000
56 7 8
56 7 8
A
B
C
D
E
F
(1) Disconnect the 1 connector.
(CN201)
(2) Release the 3 jumper wire styling.
(3) Remove the 1 screw.
(602-DM3000-270)
(4) Remove the PLAY PCB Assy with Solation
by removing the 3 screws.
(602-MK8-604)
1
CN201
PLAY PCB AssySolation
22
2
4
3
4
4
• Bottom view
[1-4] PLAY and SPEED PCB Assemblies
1
1
1
2
3×4
CN03
CN02
CNA1 AC PCB Assy
2
2
• Bottom view
(1) Disconnect the 3 connectors.
(CN02, 03, A1)
(2) Cut the 3 cable ties.
(3) Remove the AC PCB Assy by removing the
4 screws.
(602-DM3000-270)
[1-3] AC PCB Assy
(5) Remove the SPEED PCB Assy with Segregate
sheet by removing the 3 screws.
(602-BTS308-724B)
SPEED PCB AssySegregate sheet
55
5
• Bottom view

18 PLX-1000
12 3 4
A
B
C
D
E
F
12 3 4
• Bottom / Rear view
(3) Remove the PHONO PCB Assy by removing
the 4 screws.
(602-DJ5500-452, 602-ISO308-735B)
PHONO PCB Assy
3 3
33
[3] D.D. MOTOR Assy
(1) Turn the unit upside down.
(2) Remove the 4 screws.
(602-ST150-432)
(3) Turn the unit upside down.
Segregate sheet
PHONO PCB Assy
1
1
• Bottom view
• Bottom view
[2] PHONO PCB Assy
(1) Remove the Segregate sheet by removing the
2 Canoe clips.
(2) Remove 5 places of solders.
Note:
Be sure to swiftly remove solder, paying attention
not to let the removed solder fall onto the wires for
the tone arm.
2
×5
2
×4

19
PLX-1000
56 7 8
56 7 8
A
B
C
D
E
F
• Bottom view
• Bottom view
(4) Disconnect the 1 connector.
(CN901)
(5) Remove the D.D. MOTOR Assy by removing
the 5 screws.
(602-DM3000-270)
5
×5
2
×4
CN901
D.D. MOTOR Assy
D.D MOTOR Assy
AC PCB Assy
Transformer
Nut
Washer
Washer
Bush 2
Cover for
transformer
4
CN901
CN02
1
1
[1] Disassembly
(1) Disconnect the 2 connectors.
(CN02, 901)
(2) Remove the transformer by removing the
4 nuts, 4 washers, 4 washers,
4 Cover for transformers, 4 Bushes 1,
4 Bushes 2 and 4 Pipes.
(Nut: 601-F200-001)
(Washer: 606-DJ3000-102)
(Washer: 606-ST150-157)
Disassembly / Assembly for Transformer
Bush 1
Pipe

20 PLX-1000
12 3 4
A
B
C
D
E
F
12 3 4
• Bottom view
Transformer bottom cover
Transformer
1
[2] Disassembly
(1) Attach the Transformer bottom cover.
(2) Attach the 4 Bushes 1 to transformer.
(3) Pass the 4 Cover for transformer in Bush 1.
(4) Attach the transformer to chassis.
Bush 1
2
×4
3
4
×4
OK
OK
OK OK
NG
Cover for transformer