Aiwa CX-J3000 User manual

SERVICE MANUAL
COMPACT DISC DECK RECEIVER
Russian Model
CX-J3000M
E Model
CX-J3000/J3000M
SPECIFICATIONS
CX-J3000/J3000M
Ver 1.0 2004.08
9-879-115-01
2004H0579-1
© 2004.08
Sony Corporation
Personal Audio Company
Published by Sony Engineering Corporation
•CX-J3000 is the amplifier, CD player, tape deck and
tuner section in RBT-3000.
•CX-J3000M is the amplifier, CD player, tape deck
and tuner section in RBT-3000M. photo: CX-J3000M
- Continued on next page -
Model Name Using Similar Mechanism NEW
Optical Pick-up Block Name KSM-213RDP
Optical Pick-up Name KSS-213R
TAPE Model Name Using Similar Mechanism NEW
Section Tape Transport Mechanism Type CWM43FR55
CD
Section
Amplifier section
CX-J3000
Continuous RMS power output (reference):
25 + 25 watts (6 ohms at 1
kHz, 10% THD) measured
at AC 240 V 50/60 Hz
2 + 2 watts (6 ohms at 1
kHz, 10% THD) measured
at DC 12 V
CX-J3000M
CX-J3000M
(Russian model)
Continuous RMS power output (reference):
25 + 25 watts (6 ohms at 1
kHz, 10% THD) measured
at AC 230 V 50/60 Hz
(Mexican model)
Continuous RMS power output (reference):
45 + 45 watts (6 ohms at 1
kHz, 10% THD) measured
at AC 127 V 60 Hz
CX-J3000M (Chilean and Peruvian models)
Continuous RMS power output (reference):
45 + 45 watts (6 ohms at 1
kHz, 10% THD) measured
at AC 240 V 50/60 Hz
Inputs
VIDEO/SAT IN (phono jacks):
Voltage 0.775 V,
impedance 47 kilohms
Outputs
PHONES (stereo mini jack):
Accepts headphones of 8
ohms or more
SPEAKER: Accepts impedance of 6 to
16 ohms
CD player section
System Compact disc and digital
audio system
Laser Semiconductor laser
(λ=780 nm)
Emission duration:
continuous
Frequency response 2 Hz – 20 kHz (±0.5 dB)
Wavelength 760 – 800 nm
Signal-to-noise ratio More than 90 dB
Dynamic range More than 90 dB
Tape deck section
Recording system 4-track 2-channel, stereo
Frequency response 50 – 13,000 Hz (±3 dB),
using Sony TYPE I
cassettes
Tuner section
FM stereo, FM/AM superheterodyne tuner
FM tuner section
Tuning range 87.5 – 108.0 MHz
(50-kHz step)
Antenna FM telescopic antenna
Intermediate frequency 10.7 MHz
AM tuner section
Tuning range
2 Band type:
Mexican, Chilean and Peruvian models:
530 – 1,710 kHz
(with the tuning interval
set at
10
kH
z
)
531 – 1,710 kHz
(with the tuning interval
set at 9 kHz)
Russian model: 531 – 1,602 kHz (with the
tuning interval set at 9
kHz)
3 Band type:
MW: 531 – 1,602 kHz
(with the tuning interval
set at 9 kHz)
SW1: 3.200 – 7.300 MHz
(with the tuning interval
set at 1 kHz)
SW2: 9.500 – 21.850 MHz
(with the tuning interval
set at 5 kHz)
Antenna AM loop antenna
Antenna terminals External antenna terminal
Intermediate frequency 450 kHz
General
Power requirements
Indian and African 220 – 240 V AC, 50/60 Hz
12 V DC
Russian model: 230 V AC, 50/60 Hz
Mexican model: 127 V AC, 60 Hz
Chilean and Peruvian models:
models:
110 –120 V or 220 –240 V
AC, 50/60 Hz
Adjustable with voltage
selector

2
CX-J3000/J3000M
Notes on chip component replacement
•Never reuse a disconnected chip component.
•Notice that the minus side of a tantalum capacitor may be
damaged by heat.
Flexible Circuit Board Repairing
•Keep the temperature of the soldering iron around 270 ˚C
during repairing.
•Do not touch the soldering iron on the same conductor of the
circuit board (within 3 times).
•Be careful not to apply force on the conductor when soldering
or unsoldering.
CAUTION
Use of controls or adjustments or performance of procedures
other than those specified herein may result in hazardous radiation
exposure.
SAFETY-RELATED COMPONENT WARNING!!
COMPONENTS IDENTIFIED BY MARK 0 OR DOTTED LINE
WITH MARK 0ON THE SCHEMATIC DIAGRAMS AND IN
THE PARTS LIST ARE CRITICAL TO SAFE OPERATION.
REPLACE THESE COMPONENTS WITH SONY PARTS WHOSE
PART NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR
IN SUPPLEMENTS PUBLISHED BY SONY.
This appliance is classified as
a CLASS 1 LASER product.
The CLASS 1 LASER
PRODUCT MARKING is
located on the rear exterior.
Power consumption
nd CX-J3000M (
CX-J3000M (
CX-J3000M (
Russian model):
70 watts
Mexican model):
90 watts
Chilean and Peruvian models):
100 watts
CX-J3000 a
Dimensions (w/h/d) incl. projecting parts and controls
Amplifier/Tuner/Tape/CD section:
Approx. 270 ×300 ×294
mm
Mass
CX-J3000 and CX-J3000M (Russian model):
Approx. 4.8 kg
CX-J3000M (Mexican, Chilean and Peruvian models)
Approx. 5.5 kg
Design and specifications are subject to change
without notice.

3
CX-J3000/J3000M
You can play back the following discs on this
system. Other discs cannot be played back.
List of playable discs
*CX-J3000M only
Playable discs
Format of discs Disc logo
Audio CDs
CD-R/CD-RW
(audio data/MP3
files*)
Discs that this system cannot
play
CD-ROMs
•
•
CD-Rs/CD-RWs other than those recorded in
the following formats:
–musicCDformat
–MP3format that conforms to ISO96601)
Level 1/Level 2, Joliet, Romeo or Multi
Session2)
•Discs with non-standard shapes (e.g., heart,
square, star) cannot be played on this unit.
Attempting to do so may damage the unit. Do
not use such discs.
•A disc with paper or stickers on it.
•A disc that has the adhesive, cellophane tape,
or a sticker still left on it.
1) A logical format of files and folders on a CD-
ROMs, defined by ISO (International Organization
for Standardization).
2) Multi Session
This is a recording method that enables adding of
data using the Track-At-Once method.
Conventional CDs begin at a CD control area called
the Lead-in and end at an area called Lead-out. A
Multi Session CD is a CD having multiple sessions,
with each segment from Lead-in to Lead-out
regarded as a single session.
Notes on CD-R and CD-RW
•Some CD-Rs or CD-RWs cannot be played
on this system depending upon the recording
quality or physical condition of the disc, or
the characteristics of the recording device.
Furthermore, the disc will not play if it has not
been correctly finalized. For more
information, see the operating instructions for
the recording device.
•Discs recorded on CD-R/CD-RW drives may
not be played back because of scratches, dirt,
recording condition or the driver’s
characteristics.
•CD-R and CD-RW discs recorded in packet
write format are not supported.
•CD-R and CD-RW discs that have not ended
by “closing the session” are not supported.
•The system may be unable to play MP3
format files that do not have the “.MP3”
extension.
•Attempting to play non-MP3 format files that
have the “.MP3” extension may result in noise
or malfunction.
•With formats other than ISO9660 Level 1,
Joliet and Romeo, folder names or file names
may not be displayed correctly.
•The following discs take a longer time to start
playback.
–adiscrecorded with complicated tree
structure.
–adisc recorded in Multi Session.
–adisctowhich data can be added (non-
finalized disc).
Music discs encoded with
copyright protection
technologies
This product is designed to playback discs that
conform to the Compact Disc (CD) standard.
Recently, various music discs encoded with
copyright protection technologies are marketed
by some record companies. Please be aware that
among those discs, there are some that do not
conform to the CD standard and may not be
playable by this product.
Cautions when playing a disc
that is recorded in Multi
Session
•If the disc begins with a CD-DA session, it is
recognized as a CD-DA (audio) disc, and
playback continues until an MP3 session is
encountered.
•If the disc begins with an MP3 session, it is
recognized as an MP3 disc, and playback
continues until a CD-DA (audio) session is
encountered.
•The playback range of an MP3 disc is
determined by the tree structure of files
produced by analyzing of the disc.
•A disc with a mixed CD or CD-Extra format
will be recognized as a CD-DA (audio) disc.

4
CX-J3000/J3000M
TABLE OF CONTENTS
1. SERVICING NOTES ................................................... 5
2. GENERAL ...................................................................... 6
3. DISASSEMBLY
3-1. DISASSEMBLY FLOW .................................................... 8
3-2. SIDE PANEL (L/R) ............................................................ 8
3-3. TOP PANEL SECTION ..................................................... 9
3-4. OPTICAL BLOCK SECTION ........................................... 9
3-5. OPTICAL PICK-UP (KSS-213R).................................... 10
3-6. FRONT PANEL SECTION .............................................. 10
3-7. MECHANICAL DECK (CWM43FR55) ......................... 11
3-8. MAIN BOARD ................................................................ 11
4. TEST MODE ................................................................ 12
5. MECHANICAL ADJUSTMENTS.......................... 13
6. ELECTRICAL ADJUSTMENTS ........................... 13
7. DIAGRAMS
7-1. BLOCK DIAGRAM – SERVO SECTION – ................... 17
7-2. BLOCK DIAGRAM – TUNER SECTION – .................. 18
7-3. BLOCK DIAGRAM – AUDIO SECTION – ................... 19
7-4. BLOCK DIAGRAM
– DISPLAY/POWER SUPPLY SECTION – .................. 20
7-5. PRINTED WIRING BOARD
– CD SECTION (J3000) – ............................................... 22
7-6. SCHEMATIC DIAGRAM
– CD SECTION (J3000) – ............................................... 23
7-7. PRINTED WIRING BOARD
– CD/MP3 SECTION (SIDE A) (J3000M) – ................... 24
7-8. PRINTED WIRING BOARD
– CD/MP3 SECTION (SIDE B) (J3000M) – ................... 25
7-9. SCHEMATIC DIAGRAM
– CD/MP3 SECTION (J3000M) – ................................... 26
7-10. PRINTED WIRING BOARDS
– PANEL SECTION –...................................................... 28
7-11. SCHEMATIC DIAGRAM – PANEL SECTION – .......... 29
7-12. PRINTED WIRING BOARD
– MAIN SECTION – ....................................................... 30
7-13. SCHEMATIC DIAGRAM
– MAIN SECTION (1/3) – ............................................... 31
7-14. SCHEMATIC DIAGRAM
– MAIN SECTION (2/3) – ............................................... 32
7-15. SCHEMATIC DIAGRAM
– MAIN SECTION (3/3) – ............................................... 33
7-16. PRINTED WIRING BOARD – AMP SECTION – ......... 34
7-17. SCHEMATIC DIAGRAM – AMP SECTION – .............. 35
7-18. PRINTED WIRING BOARDS
– POWER SUPPLY SECTION – ..................................... 36
7-19. SCHEMATIC DIAGRAM
– POWER SUPPLY SECTION – ..................................... 37
8. EXPLODED VIEWS
8-1. BACK/SIDE PANEL SECTION ...................................... 45
8-2. TOP PANEL SECTION ................................................... 46
8-3. FRONT PANEL (TAPE DECK) SECTION .................... 47
8-4. FRONT PANEL SECTION .............................................. 48
8-5. CHASSIS SECTION ........................................................ 49
8-6. OPTICAL PICK-UP SECTION (KSM-213RDP) ........... 50
9. ELECTRICAL PARTS LIST ................................... 51

5
CX-J3000/J3000M
SECTION 1
SERVICING NOTES
NOTES ON HANDLING THE OPTICAL PICK-UP
BLOCK OR BASE UNIT
The laser diode in the optical pick-up block may suffer electrostatic
break-down because of the potential difference generated by the
charged electrostatic load, etc. on clothing and the human body.
During repair, pay attention to electrostatic break-down and also
use the procedure in the printed matter which is included in the
repair parts.
The flexible board is easily damaged and should be handled with
care.
NOTES ON LASER DIODE EMISSION CHECK
The laser beam on this model is concentrated so as to be focused on
the disc reflective surface by the objective lens in the optical pick-
up block. Therefore, when checking the laser diode emission,
observe from more than 30 cm away from the objective lens.
UNLEADED SOLDER
Boards requiring use of unleaded solder are printed with the lead-
free mark (LF) indicating the solder contains no lead.
(Caution: Some printed circuit boards may not come printed with
the lead free mark due to their particular size)
: LEAD FREE MARK
Unleaded solder has the following characteristics.
•Unleaded solder melts at a temperature about 40 °C higher
than ordinary solder.
Ordinary soldering irons can be used but the iron tip has to be
applied to the solder joint for a slightly longer time.
Soldering irons using a temperature regulator should be set to
about 350 °C.
Caution: The printed pattern (copper foil) may peel away if
the heated tip is applied for too long, so be careful!
•Strong viscosity
Unleaded solder is more viscou-s (sticky, less prone to flow)
than ordinary solder so use caution not to let solder bridges
occur such as on IC pins, etc.
•Usable with ordinary solder
It is best to use only unleaded solder but unleaded solder may
also be added to ordinary solder.
•MODEL IDENTIFICATION
– Back Panel –
MODEL Power Voltage Indication
CX-J3000 AC: 220-240V ~ 50/60Hz 70W
CX-J3000M: RU AC: 230V ~ 50/60Hz 70W
CX-J3000M: E51 AC: 110-120V/220-240V ~ 50/60Hz 100W
CX-J3000M: MX ca ~ 127V 60Hz 90W
Power Voltage
Indication
•Abbreviation
E51 : Chilean and Peruvian models
MX : Mexican model
RU : Russian model

6
CX-J3000/J3000M
SECTION 2
GENERAL
This section is extracted from
instruction manual.
Main unit
ALBUM +/–
1) ql
CD 5
CD SYNC wd
DANCE qj
Deck A wa
Deck B qh
DISPLAY w;
Display window 8
FLAT qk
FM MODE
2) ql
i-Bass 0
PHONES jack qf
POP qs
POWER
3) 1
REC PAUSE/START wf
Remote sensor 3
REPEAT
2) ql
ROCK qa
STANDBY indicator 2
TAPE A/B 4
TUNER/BAND 6
TUNING MODE wg
VIDEO/SAT 7
VOLUME control qd
?/1
4)
(power) 1
./> (go back/go forward)
wg
m/M (rewind/fast forward)
wg
x(stop) wg
X(pause) wg
nN (play) wg
ZPUSH (deck A) (open/close)
ws
ZPUSH (deck B) (open/close)
qg
ZPUSH OPEN/CLOSE (open/
close) 9
+/– (tuning) wg
1)
CX-J3000M only
2)
Except for CX-J3000M
3)
Except for CX-J3000
4)
CX-J3000 only
ALPHABETICAL ORDER
A – O P – Z
BUTTON DESCRIPTIONS
134567
wa
ws
wd
wf
wg
289
qa
q;
qs
qd
qf
qh
qg
q
k
q
l
w
;
q
j

7
CX-J3000/J3000M
Remote control
ALBUM +1) 0
ALBUM –1) qs
CD qj
CLEAR qf
DISC SKIP2) 9
DISPLAY w;
ENTER 8
EQ qd
FM MODE 3
FUNCTION 5
PLAY MODE ql
REPEAT 3
SELECT2) 1
SET2) 2
SLEEP wa
TAPE qh
TUNER BAND 4
TUNER MEMORY qk
TUNING MODE ql
VOLUME +/– qa
?/1 (power) ws
./> (go back/go forward)
qg
m/M (rewind/fast forward)
6
x(stop) 7
X(pause) 7
N(play) 7
+/– (tuning) qg
1) CX-J3000M only
2) This button cannot be used in
this system.
ALPHABETICAL ORDER
A – O P – Z
BUTTON DESCRIPTIONS
ws
qd
qg
qf
wa
w;
ql
qk
qj
qh
4
5
6
7
8
9
q;
1
qa
qs
3
2

8
CX-J3000/J3000M
Note: Follow the disassembly procedure in the numerical order given.
3-2. SIDE PANEL (L/R)
1 three screws
(case 3 TP2)
2 three screws
(BVTP 3
× 10)
3
4
5
side panel (L)
6 three screws
(case 3 TP2)
7 three screws
(BVTP 3
× 10)
8
9
0
side panel (R)
•This set can be disassembled in the order shown below.
3-1. DISASSEMBLY FLOW
SECTION 3
DISASSEMBLY
SET
3-2. SIDE PANEL (L/R)
(Page 8)
3-3. TOP PANEL SECTION
(Page 9)
3-8. MAIN BOARD
(Page 11)
3-4. OPTICAL BLOCK SECTION
(Page 9)
3-6. FRONT PANEL SECTION
(Page 10)
3-5. OPTICAL PICK-UP (KSS-213R)
(Page 10)
3-7. MECHANICAL DECK (CWM43FR55)
(Page 11)

9
CX-J3000/J3000M
3-3. TOP PANEL SECTION
1 two screws
(BVTP 3
× 10)
2
3 FFC 14P (J3000
)
FFC 20P (J3000M
)
(CNP702)
4 connector
(CN851)
5 terminal
(CN206)
6 top panel section
3-4. OPTICAL BLOCK SECTION
1 four screws
(BVTP 3
´ 10)
3 two screws
(PTPWH M2.6)
3 screw
(PTPWH M2.6)
3 screw
(PTPWH M2.6)
2 insulating sheet
4
5
two vibration
proof robbers
5 two vibration
proof robber
s
6 CD cover
7 optical block section

10
CX-J3000/J3000M
3-6. FRONT PANEL SECTION
3-5. OPTICAL PICK-UP (KSS-213R)
4two screws (M2)
3gear (B)
6sled shaft
7flexible flat cable (16core) (CNP701)
8optical pick-up
(KSS-213R)
5
1two claws
1two claw
s
2CD cover
1 two screws
(BVTP 3
´ 10)
2 FFC15P
(CN105)
3 FFC13P (J3000M)
FFC15P (J3000)
(CN102)
4 connecto
r
(CN301)
5 connector
(CN003)
7
8
connector
6 claw
6 claw
9 front panel section

11
CX-J3000/J3000M
3-7. MECHANICAL DECK (CWM43FR55)
1two screws
(BVTP3 ×10)
3FFC 13
P
5mechanical de
ck
(CWM43FR55)
4four screws
(BVTP3 ×10)
2wire PWB
3-8. MAIN BOARD
3three screws
(BVTP3 ×10)
2terminal
(CN501)
4MAIN boa
rd
3two screws
(BVTP3 ×10)
1connector
(CN201)

12
CX-J3000/J3000M
SECTION 4
TEST MODE
COLD RESET
•The cold reset clears all data including preset data stored in
the RAM to initial conditions. Execute this mode when
returning the set to the customer.
Procedure:
1. Press the [POWER] button to turn the power on.
2. While pressing the xbutton, press the [i-Bass] button and
turn the [VOLUME] knob counter-clockwise.
3. The message “RESET” is displayed and the set is reset.
GC TEST MODE
Procedure:
1. Press the [POWER] button to turn the power on.
2. While pressing the [DISPLAY] button, press the [i-Bass] button
for 5 seconds.
3. It change displays in order of version, model type and suffix
at 2 seconds interval, then the display is back to normal status.
AMP TEST MODE
Procedure:
1. In the power off status, while pressing the [i-Bass] button and
press the [POWER] button (J3000M) or connect the AC plug
(J3000) to turn the power on. Then enter the AMP test mode
and display “AMP TEST”.
2. If turn the [VOLUME] knob clockwise, it displays “VOL MAX”,
and if turn the knob counter-clockwise, it displays “VOL
MIN”.
3. To release from this mode, turn the power off.
CD REPEAT 5 LIMIT CANCEL MODE
•Number of repeat for CD playback is 5 times when the repeat
mode is “REPEAT”. This mode enables CD to repeat playback
for limitless times.
Procedure:
1. Press the [POWER] button to turn the power on.
2. In the repeat on status, while pressing the xbutton, press the
[CD] button to enter the CD repeat 5 limit cancel mode and
repeat mark blinks on the liquid crystal display.
3. To release this mode, press the [POWER] button to turn the
power off.
CHANGE-OVER OF AM TUNER STEP BETWEEN
9 kHz AND 10 kHz
•Astep of AM channels can be changed over between 9 kHz and
10 kHz.
Procedure:
In the power off status, while pressing the [TUNER/BAND] but-
ton and press the [POWER] button to the display on fluorescent
liquid crystal display changes to “AM 530 kHz” (10 kHz step) or
“AM 531 kHz” (9 kHz step), and thus the channel step is changed
over.
FUNCTION CHANGE MODE
•Select either VIDEO or SAT of the external function input.
Procedure:
1. In the power off status, while pressing the [VIDEO/SAT] but-
ton and press the [POWER] button (J3000M) or connect the
AC plug (J3000).
2. Each time this operation is operated, it change displays in
order of “VIDEO” and “SAT”.
TC TEST MODE
Procedure:
1. In the power off status, while pressing the [TAPE A/B] button
and press the [POWER] button (J3000M) or connect the AC
plug (J3000) to turn the power on. Then enter the TC test mode
and display “TC TEST”.
2. Set the tape into the deck-B.
3. Press the >button, tape is forwarded to the last position.
Press the . button, tape is rewound to the beginning position.
4. Press the [REC PAUSE/START] button, tape is rewound to the
beginning position and recording starts.
5. In the step 4 status, press the x button, tape is rewound to the
beginning position and playing starts.
6. To release from this mode, turn the power off.
CD TEST MODE
Procedure:
1. In the power off status, while pressing the [CD] button and
press the [POWER] button (J3000M) or connect the AC plug
(J3000) to turn the power on. Then enter the CD test mode
and liquid crystal display is all turned on.
2. Press the >button to move the optical pick-up to outside
track, or . button to inside track. This time, “CD TEST” is
displayed on the liquid crystal display.
3. Press the Y button, normally playing is performed. In case
of focus on isrot able, focus seach is performed continuously.
4. Press the x button, focus seach is performed continuously
and LD is lited on. This time, “READING” is displayed on
the liquid crystal display.
5. Each time X button is pressed, traverse on/off are changed.
6. To release from this mode, turn the power off.

13
CX-J3000/J3000M
SECTION 5
MECHANICAL ADJUSTMENTS
SECTION 6
ELECTRICAL ADJUSTMENTS
PRECAUTION
1. Clean the following parts with a denatured alcohol-moistened
swab:
record/playback heads pinch rollers
erase head rubber belts
capstan idlers
2. Demagnetize the record/playback head with a head demag-
netizer.
3. Do not use a magnetized screwdriver for the adjustments.
4. After the adjustments, apply suitable locking compound to the
parts adjusted.
5. The adjustments should be performed with the rated power
supply voltage unless otherwise noted.
TORQUE MEASUREMENT
3.06 N • m to 6.96 N • m
31 to 71 g • cm
(0.43 – 0.98 oz • inch)
0.19 N • m to 0.58 N • m
2 to 6 g • cm
(0.02 – 0.08 oz • inch)
3.06 N • m to 6.96 N • m
31 to 71 g • cm
(0.43 – 0.98 oz • inch)
0.19 N • m to 0.58 N • m
2 to 6 g • cm
(0.02 – 0.08 oz • inch)
6.96 N • m to 14.02 N • m
71 to 143 g • cm
(0.98 – 1.99 oz • inch)
9.80 N • m
100 g or more
(3.53 oz or more)
9.80 N • m
100 g or more
(3.53 oz or more)
Mode Torque meter
CQ-102C
CQ-102C
CQ-102RC
CQ-102RC
CQ-201B
CQ-403A
CQ-403R
Meter reading
FWD
FWD
back tension
REV
REV
back tension
FF/REW
FWD tension
REV tension
0 dB=0.775 V
DECK SECTION
Note: Perform this adjustments for both decks
Procedure:
1. Mode: Playback
2. Turn the adjustment screw and check output peaks. If the peaks
do not match for L-CH and R-CH, turn the adjustment screw
so that outputs match within 1dB of peak.
Tape Signal Used for
P-4-A063 6.3 kHz, −10 dB Azimuth Adjustment
Screw
position
L-CH
peak
within
1dB
Output
level
L-CH
peak R-CH
peak
within
1dB
Screw
position
R-CH
peak
set
MAIN board
PHONES jack
(J202 or J203)
+
–
level meter
test tape
P-4-A063
(6.3 kHz, –10 dB)
1. Demagnetize the record/playback head with a head
demagnetizer.
2. Do not use a magnetized screwdriver for the adjustments.
3. After the adjustments, apply suitable locking compound to the
parts adjust.
4. The adjustments should be performed with the rated power
supply voltage unless otherwise noted.
5. The adjustments should be performed in the order given in
this service manual. (As a general rule, playback circuit
adjustment should be completed before performing recording
circuit adjustment.)
6. The adjustments should be performed for both L-CH and R-
CH.
7. Switches and controls should be set as follows unless otherwise
specified.
•Test Tape
RECORD/PLAYBACK HEAD AZIMUTH ADJUSTMENT
set
test tape
P-4-A063
(6.3 kHz, –10 dB) oscilloscope
VH
waveform of oscilloscope
in phase 45 ° 90 ° 135 ° 180 °
good wrong
MAIN board
PHONES jack
(J202 or J203)
3. Mode: Playback
DECK A DECK B

14
CX-J3000/J3000M
MW IF ADJUSTMENT
Adjust for a maximum reading on level meter
L514 450 kHz
TUNER SECTION 0 dB=1 µV
[MW]
Setting:
Function : RADIO
TUNER/BAND button : MW
[FM]
Setting:
Function : RADIO
TUNER/BAND button: FM
[SW]
Setting:
Function : RADIO
TUNER/BAND button: SW-1 or SW-2
AM RF signal
generator
3
0% amplitude
m
odulation by
4
00 Hz signal
60 cm
set
loop antenna A loop antenna
B
FM RF signal
generator
7
5 kHz frequency
d
eviation by 1 kHz
s
ignal
O
utput level:
a
s low as possible
set
MAIN board
JW501 (GND)
MAIN board
JW535 (AN
T)
AM RF signal
generator
set
MAIN board
JW501 (GND
)
MAIN board
JW535 (AN
T)
33 Ω10 pF
3
0% amplitude
m
odulation by
4
00 Hz signal
set
MAIN board
PHONES jack
(J202 or J203)
+
–
level meter
(range: 0.5 – 5 V ac)
8 Ω
digital voltmet
er
JW527 (VT)
J
W528 (GND)
MAIN board
•Repeat the procedures in each adjustment several times, and the
tracking adjustments should be finally done by the trimmer ca-
pacitors.
•Remove FM/SW telescopic antenna in FM and SW adjustment.
<< >>: J3000 only, ( ): 10kHz step status
MW VT VOLTAGE ADJUSTMENT
Adjustment Part Frequency Display Reading on Digital Voltmeter
L503 531, (530) kHz 1.5 ± 0.1 <<1.1±0.1>> V
Confirmation 1,602, (1,710) kHz 6.3 ± 0.5 <<7.5±0.5>> V
(): 10kHz step status
MW TRACKING ADJUSTMENT
Adjust for a maximum reading on level meter
L516 603 (620) kHz
TC503 1,404 (1,490) kHz
SW1 VT VOLTAGE ADJUSTMENT (J3000 only)
Adjustment Part Frequency Display Reading on Digital Voltmeter
L501 3.2 MHz 1.45 ± 0.1 V
Confirmation 7.3 MHz 6.5 ± 0.8 V
SW1 TRACKING ADJUSTMENT (J3000 only)
Adjust for a maximum reading on level meter
L504 3.2 MHz
TC502 7.3 MHz
SW2 VT VOLTAGE ADJUSTMENT (J3000 only)
Adjustment Part Frequency Display Reading on Digital Voltmeter
L502 9.5 MHz 1.95 ± 0.1 V
Confirmation 21.85 MHz 7.5 ± 0.5 V
SW2 TRACKING ADJUSTMENT (J3000 only)
Adjust for a maximum reading on level meter
L505 15 MHz
FM VT VOLTAGE ADJUSTMENT
Adjustment Part Frequency Display Reading on Digital Voltmeter
L513 87.5 MHz 1.75 ± 0.1 V
Confirmation 108 MHz 5.8 ± 0.5 V
FM TRACKING ADJUSTMENT
Adjust for a maximum reading on level meter
L512 98 MHz
Adjustment Location: MAIN board (See page 15)
4. After the adjustments, apply suitable locking compound to
the pats adjusted.
Adjustment Location: Playback Head (Deck A).
Record/Playback/Erase Head (Deck B).
f
orward
reverse

15
CX-J3000/J3000M
Adjustment Location:
−MAIN BOARD (Component Side) −
JW527
(GND)
JW501
(GND)
JW535
(ANT)
JW528
(VT)
TC503
L516 L502
SW2 VT Voltage Adjustment (J3000 only)
MW Tracking Adjustment
L501
SW1 VT Voltage Adjustment (J3000 only)
L503
MW VT Voltage Adjustment
L513
FM VT Voltage Adjustment
L514
MW IF Adjustment
J202 (J3000)
or
J203 (J3000M)
L505
SW2 Tracking Adjustment
(J3000 only)
L512
FM Tracking Adjustment



TC502
L504
SW1
Tracking
Adjustment
(J3000 only)




16
CX-J3000/J3000M
CD SECTION
CD section adjustments are done automatically in this set.
In case of operation check, confirm that focus bias.
Focus Bias Check (J3000)
1. Connect the oscilloscope to TP (RF) and TP (GND) on the
CD board.
2. Insert the disc (YEDS-18). (Part No. : 3-702-101-01)
3. Press the Ybutton.
4. Confirm that the oscilloscope waveform is as shown in the
figure below. (eye pattern)
A good eye pattern means that the diamond shape (◊) in the
center of the waveform can be clearly distinguished.
• RF signal reference waveform (eye pattern)
Adjustment Location:
VOLT/DIV: 200 mV (with the 10: 1 probe in use.)
TIME/DIV: 500 ns
0.85
± 0.2 Vp-p
When observing the eye pattern, set the oscilloscope
for AC range and raise vertical sensitivity.
−CD BOARD (Conductor Side) −
TP (RF)
TP (GND)
IC701
Focus Bias Check (J3000M)
1. Connect the oscilloscope to TP (RF) and TP (VREF) on the
CD/MP3 board.
2. Insert the disc (YEDS-18). (Part No. : 3-702-101-01)
3. Press the Ybutton.
4. Confirm that the oscilloscope waveform is as shown in the
figure below. (eye pattern)
A good eye pattern means that the diamond shape (◊) in the
center of the waveform can be clearly distinguished.
• RF signal reference waveform (eye pattern)
VOLT/DIV: 50 mV (with the 10: 1 probe in use.)
TIME/DIV: 500 ns
0.85
± 0.2 Vp-p
When observing the eye pattern, set the oscilloscope
for AC range and raise vertical sensitivity.
Adjustment Location:
−CD/MP3 BOARD (Side B) −
TP (VREF)
TP (RF)

CX-J3000/J3000M
1717
CX-J3000/J3000M
SECTION 7
DIAGRAMS
7-1. BLOCK DIAGRAM – SERVO SECTION –
A
C
B
F
E
D
A
C
B
D
LD
PD
VR
F
T+
T–
F+
F–
SL+
SL–
SP+
SP–
E
VREF
LD
PD
LD POWER
CONTROLLER
Q701 APC
FIN2
FIN1
LDD
LDS
TIN2
TIN1
VREF
RF
10
9
11
80
7
79
48
20
17
18
TRACKING
COIL
DRIVE
10
7
FOCUS
COIL
DRIVE
TIN
FIN
25
SLIN
SLED
MOTOR
DRIVE
3
SPINDLE
MOTOR
DRIVE
SPIN
VREF
OPIN
MUTE
T+
T–
12
11
F+
F–
26
27
SL+
SL–
2
1
SP+
SP–
(TRACKING)
(FOCUS)
OPTICAL PICK-UP
BLOCK
(KSM-213RDP)
M
M
M702
(SLED)
M701
(SPINDLE)
SLED/SPINDLE
MOTOR DRIVER,
TRACKING/FOCUS
COIL DRIVER
IC702
(CX-J3000)
(CX-J3000M)
S701
(LIMIT)
EFMIN
HFL
AGC
PH(RFENV)
FE
TE
VREF
CONT1 FSEQ CONT4 DRF RES DI CE CL WRQ DO XOUT XIN
LCHO
RCHO
DATA
DATACK
LRSY
ASDFIN
ASDACK
ASLRCK
CF2
FSX/16MIN
16MOUT
3
67
TDDTD
FD
SP
SL
31 72 25 66 63 61 62 49 48
73
74
75
76
77
78
80
1
2
3
4
5
9
59
58
57
56
55
52
50
65 64
42
45
RF AMP,
SYSTEM SERVO PROCESSOR,
DIGITAL SIGNAL PROCESSOR
IC701
(CX-J3000)
(CX-J3000M)
22
9 28 3 100 5 25 41
X701
16.93MHz
O_CD_CE
O_CD_DATA
O_CD_CLK
I_CD_WRQ
O_CD_RST
I_CD_DRF
I_MP3_FSEQ
I_CD_DATA
27
99
O_MP3_CE/O_AMP_ON
I_MP3_INTB/I-HP HP-ON
AMP-ON
I_CD_LID
SYSTEM CONTROLLER
IC801 (1/3)
CLV,CAV
CONTROL
PLL
VCEC
SWITCH
ERROR
CORRECTION
AUDIO CD
A/D
CONVERTER,
SERVO
PROCESSOR
FRAME SYNC
DETECT,PROTECT
INSERT
EFM DECODER
INTERPOLATION
MUTE
&
ATTENUATION
DEEMPHASIS
8FS
DIGITAL
FILTER
&
1-bit DAC
SERIAL
OUT
EXTERNAL
AUDIO IN
LPF
SLICE
LEVEL
CONTROL
GENERAL
PURPOSE
PORT
COMMAND
INTERFACE
CLOCK
GENERATOR
23
15
FD
SL
SP
TD
VREF
VREF
VREF
R-CH
DATACK
LRSY
7960 DATA IN
ADDATA
ADBCK
ADLRCK
CF2IN
WEB OEB CASLB CASUB RASB
CKOUT
754
41 44 43 45 42
16 30 31 29 15
23-30,33-40 60-53,50
18-21,24-28
2-5,7-10,
35-38,40-43
CKIN
CMDOUT
CMDIN
CL
CE
INTB
RESB
CD-L
D/A
CONVERTER
PH/BH
20
FDD SPDO SLDO
21 22 23
MDATA0
I
MDATA15
MADRS0
I
MADRS8
WE
OE
LCAS
UCAS
RAS
DQ0-DQ15 A0-A8
MP3 DECODER,
CD-ROM DECODER,
ANTI-SHOCK
CONTROLLER
IC1001
SDRAM
IC1002
S851
CD LID OPEN/CLOSE
DETECT
• SIGNAL PATH
: CD PLAY
•R-ch is omitted due to same as L-ch.
(J3000M)
(J3000)
B
A
(Page 19)
(Page 19)

CX-J3000/J3000M
1818
CX-J3000/J3000M
7-2. BLOCK DIAGRAM – TUNER SECTION –
CN502
FM TRACKING
L512
FM RF
ANT501
FM/SW TELESCOPIC
ANTENNA
MW TRACKING
SW2 TRACKING
L516, TC503
SW1 TRACKING
L504, TC502
MW IF
CF502
CF503
FM/AM FRONT END,
IF AMP, EQ
IC501
CF501
L514
MW IF
TC503
D505
L513
FM OSC
L516
MW ANT
FM RF-IN
MW SWITCH
Q509
RF AMP
Q510
FM VT
VOLTAGE
L503
MW OSC
OSC
SWITCH
Q506
MW VT
VOLTAGE
BAND SELECT
SWITCH
Q516
LOOP
ANTENNA
2
AM RF-IN
22
FM RF-OUT
24 AM IF-IN
6
IF-REQ
17
OSC-O
19
ST.IND
18
LPF2
13
LPF1
14
FM IF-IN
7MPX-IN
R-CH
15
QUAD
10
FM-OSC
21
AM-OSC
20
SW2
8
L505
SW2 ANT
L504
SW1 ANT
TC502
(J3000M)
(J3000)
(J3000)
TU +5V
MW OSC
Q503
(J3000M)
SW2 SWITCH
Q507
SW1
SWITCH
Q508
BUFFER
Q514
MUTING
Q513
IF-IN
12
IF-MUT
13
MUTE
9
AM
10
MONO BEAT
11
D506
BAND SELECT
SWITCH
Q511, 512
BAND SELECT
SWITCH
Q515
SW1
7
L502
SW2 OSC
OSC
SWITCH
Q504
SW2 VT
VOLTAGE
TU +5V
SW2 OSC
Q501
L501
SW1 OSC
OSC
SWITCH
Q505
D503
D504
SW1 VT
VOLTAGE
SW1 OSC
Q502
LOW-PASS
FILTER
PLL
IC502
D502
D501
MIX-O 4DET-O 16 L-OUT TU-L
ST-IND
12
R-OUT 11
DO 6
FM-IN
16
AM-IN
15
LP-IN
19
P-DET
18
LP-OUT
20
1 22
X-IN X-OUT
X501
4.5MHz
C
D
E
DI 4
CL 5
CE
TU-DO
TU-DI
TU-CLK
TU-CE
3
• SIGNAL PATH
: AM (MW/SW)
: FM
•R-ch is omitted due to same as L-ch.
(Page 19)
(Page 19)
(Page 19)

CX-J3000/J3000M
1919
CX-J3000/J3000M
7-3. BLOCK DIAGRAM – AUDIO SECTION –
+
A
C
MUTING
Q251 DC DETECT
Q204, 205, 207
PB SWITCH
Q307
HP301
(PB)
(DECK A)
HRPE302
(REC/PB/ERASE)
(DECK B)
R-CH
L-CH
R-CH
L-CH
R-CH
ERASE
CAPSTAN/REEL
MOTOR DRIVE
Q459, 460
REC BIAS
SWITCH
Q453, 454
STANDBY
SWITCH
Q254
OVER LOAD
DETECT
Q201
PROTECT
DETECT
Q203
THERMAL
DETECT
Q206
RELAY
DRIVE
Q210
MUTING
CONTROL
Q253
O_MOTOR
40
TA-L
2
AUX-L
19
I_PROTECT
19
O_POWER
95
O_SP_ON
96
O_MUTE
94
O_FUNC_DATA
97
O_FUNC_CLK
98
O_BIAS
41
O_PB2
42
CONT
13
OUT-L 18
REC-L 28
PBO-L 6
• SIGNAL PATH
: CD PLAY
: FM
: TAPE PLAY (DECK A)
: TAPE PLAY (DECK B)
: TAPE REC
: AUX IN
•R-ch is omitted due to same as L-ch.
J301
VIDEO/SAT IN
L
R
J202
J201
PHONES
J203
PHONES
L
R
PB SWITCH
Q306
REC/PB SWITCH
Q314, 315
BIAS OSC
Q451
MUTING
Q311 – 313
MUTING
Q309
L451
BIAS OSC
R-CH
TU-L
CD-L
R-CH
R-CH
R-CH
D204
D205
TH202
O-POWER
P-ON MUTING
I-PROTECT
I-PROTECT,
O-POWER
RY202
RY201
R-CH
R-CH
R-CH
CAP-MT
TAPE MECHANISM
DECK BLOCK
R-CH
VOLI-L
INPUT SELECT,
ELECTRICAL VOLUME
IC302
POWER AMP
IC201
(J3000)
IC202
(J3000M)
(J5000V)
7
TU-L
23
CD-L
21
PLUNGER DRIVE
(DECK A)
Q456, 458 O_A_SOL
38
A-SOL
PLUNGER DRIVE
(DECK B)
Q455, 457 O_B_SOL
39
I_A_PHOTO
31
B-SOL
A-PHOTO
I_A_HALF
32
A-HALF
I_A_MODE
30
A-MODE
I_B_HALF
35
B-HALF
I_B_MODE
36
B-MODE
I_REC_FWD
33
REC-FWD
I_REC_REV
37
REC-REV
I_B_PHOTO
34
B-PHOTO
POWER ON
MUTING
Q104
+
+
+
(J3000M)
(J3000M)
(J3000M)
(J3000)
AMP-ON, HP-ON
HP-ON
AMP-ON
(J3000)
+
–
+
–
SYSTEM CONTROLLER
IC801 (2/3)
SPEAKER
IMPEDANCE
USE 6Ω
B
ST-IND
I_TU_DATA 7
I_ST_IND 93
D
G
F
E
O_TU_DATA 6
O_TU_CLK 8
O_TU_CE
TU-DO
TU-DI
TU-CLK
TU-CE
2
(Page 17)
(Page 18)
(Page 17)
(Page 20)
(Page 20)
(Page 18)
(Page 18)

CX-J3000/J3000M
2020
CX-J3000/J3000M
7-4. BLOCK DIAGRAM – DISPLAY/POWER SUPPLY SECTION –
(AC IN)
POWER TRANSFORMER
PT001 (Chilean, Peruvian)
PT002 (EXCEPT Chilean, Peruvian)
RECT
D155 – 158
OVER CURRENT
DETECT
Q159
LOW VOLTAGE
DETECT
Q160
DC IN 12V
+
–
S001
S2
F002
F001
AMP B–
UNREG
AMP B+
RY B+
VT B+
SW +9V
D166
SW +7V
F003
J001
VOLTAGE
SELECTOR
POWER
J002
F004
- AC
(J3000)
(J3000M)
P-ON MUTING
(Chilean, Peruvian)
(EXCEPT Chilean, Peruvian)
(J3000M)
(J3000)
TUNER ON
SWITCH
Q518, 519
RECT
D151 – 154
RECT
D104, 105
I_VOL_ENC
23
I_REM
29
O_BACK_LIGHT
92
O_LED_S_BASS
91
O_LED_STANDBY
43
O_TU_ON 87
O_CD_ON
S0 – S33
COM0 – COM3
88
V1 82
I_OP_BATT 21
ROTARY ENCODER
S813
S801 – 812, 814, 815, 817, 818, 820 – 822 (J3000)
S802 – 812, 814 – 819, 821, 822 (J3000M)
LED DRIVE
Q806
LCD801
LIQUID
CRYSTAL
DISPLAY
SW +2.6V, SW +3.3V,
SW +5V, SW +7V
B+ SWITCH
Q209
PROTECT SWITCH
Q208
I-PROTECT
O-POWER O-POWER, I-PROTECT
CD/VCD ON
SWITCH
Q155
+9V
REGULATOR
Q101 – 103
B+ 3.3V
B+ SWITCH
Q520
RESET SWITCH
Q803
CD +7V B+ SWITCH
Q154
+4V
REGULATOR
Q801, 802
D807
D805
D809
VOLTAGE
DETECT
IC802, Q807
TU +5V +5V
REGULATOR
Q517
SW +3.3V +3.3V
REGULATOR
Q157, 158
SW +5V +5V
REGULATOR
IC151
SW +2.6V +2.6V
REGULATOR
Q156
+7V
REGULATOR
Q151 – 153
V2 81
V3 80
RES 11
I_POWER_DN 18
VCC +3.3V
G
F
SYSTEM CONTROLLER
IC801 (3/3)
83 – 86 44 – 53,
56 – 79
I_KEY1,
I_KEY2
24, 25
LED DRIVE
Q805
LED DRIVE
Q804
LCD
BACK LIGHT
D801
D812 – 817
STANDBY
VOLUME
D802
i-Bass
REMOTE CONTROL
RECEIVER
IC803
15
16
X801
8.64MHz I_CF1
O_CF2
(Page 19)
(Page 19)