Aiwa CXJN-1 Service manual
CX-JN1
SERVICE MANUAL
Ver. 1.4 2004.10
CX-JN1 is the amplifier, CD player, tape deck
and tuner section in JAX-N1/PK1.
CD
Section
Tape deck
Section
AEP Model
UK Model
E Model
Austr alian Model
Model Name Using Similar Mechanism NEW
CD Mechanism Type CDM74S-K6BD72
Base Unit Name BU-K6BD72
Optical Block Name KSM-213DCP
Optical Pick-up Name KSS-213D
Model Name Using Similar Mechanism NEW
Tape Transport Mechanism type CWM43FF13
TUNER
FM
tuning range
Except CIS model:
CIS model: 65 MHz to 74 MHz (10 kHz step)
FM
usable sensitivity (IHF)
AEP, UK models:
CIS model:
Except AEP, UK, CIS models:
FM antenna terminal 75 ohms (unbalanced)
AM
tuning range
AEP, UK, CIS, E, EA, TW models:
E51 model:
SP, KR, AUS models:
AM usable sensitivity 350 µV/m
AM antenna Loop antenna
AMPLIFIER
Power
output
AEP, UK, CIS models:
Except AEP, UK, CIS models:
87.5 MHz to 108 MHz
87.5 MHz to 108 MHz (50 kHz step)
16.8 dBf
15.3 dBf (65 MHz to 74 MHz)
12.8 dBf (87.5 MHz to 108 MHz)
13.2 dBf
531 kHz to 1602 kHz
530 kHz to 1710 kHz (10 kHz step)
531 kHz to 1710 kHz (9 kHz step)
531 kHz to 1602 kHz (9 kHz step)
530 kHz to 1710 kHz (10 kHz step)
Rated: 12 W + 12 W (6 ohms, T.H.D.
1 %, 1 kHz/DIN 45500)
Reference: 15 W + 15 W (6 ohms,
T.H.D. 10 %, 1 kHz/DIN 45324)
MUSIC POWER: 27 W +27 W
Rated: 36 W + 36 W (1 kHz, T .H.D. 1
%, 6 ohms)
Reference: 45 W + 45 W (1 kHz,
T.H.D. 10 %, 6 ohms)
SPECIFICATIONS
Total harmonic distortion 0.08 % (6 W, 1 kHz, 6 ohms, DIN
Input VIDEO/AUX: 400 mV
Outputs SPEAKER:
CASSETTE DECK
Track format 4 tracks, 2 channels stereo
Frequency response 50 Hz – 8 kHz
Recording system AC bias
Heads Deck A: playback x 1
CD PLAYER
Laser Semiconductor laser
D/A converter 1 bit dual
Signal-to-noise ratio 85 dB (1 kHz, 0 dB)
Harmonic distortion 0.05 % (1 kHz, 0 dB)
AUDIO)
MIC: 1.7 mV (10k ohms)
(Except AEP, UK, CIS models)
6 ohms or more
PHONES: 32 ohms or more
Deck B: recording/playback x 1,
erase x 1
(λ = 780 nm)
Emission duration:
continuous
COMPACT DISC DECK RECEIVER
GENERAL
Power
requirements
AEP, UK, CIS models:
E, E51, SP, TW models:
EA models:
KR model:
AUS model:
Power consumption
AEP, UK, CIS models:
Except AEP, UK, CIS models:
Power consumption With ECO mode on: 0.25 W
in standby mode With ECO mode off: 15 W
Dimensions (W x H x D) 280 x 330 x 392.5 mm
Weight
AEP, UK, CIS models:
E51 model:
E, EA, SP, TW, KR, AUS models:
Specifications and external appearance are subject to change
without notice.
230 V AC, 50/60 Hz
110
- 120V / 220 - 240V AC
(Switchable), 50 Hz/60 Hz
120 - 127V / 220 V AC
(Switchable), 50 Hz/60 Hz
220 V AC, 60 Hz
240 V AC, 50 Hz/60 Hz
40 W
74 W
6.1 kg
6.7 kg
6.8 kg
– Continued on next page –
9-877-271-05 Sony Corporation
2004J05-1 Personal Audio Company
© 2004.10 Published by Sony Engineering Corporation
CX-JN1
Ver 1.2
COPYRIGHT
Check copyright laws relevant to recordings from discs, tuner
or tape for the country where the unit is to be used.
Licensed by BBE Sound, Inc. under USP4638258, 5510752
and 5736897.
•Abbreviation
AUS: Australian model
EA : Saudi Arabia model
E51 : Chilean and Peruvian models
KR : Korean model
SP : Singapore model
TW : Taiwan model
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.
This appliance is classified as
a CLASS 1 LASER product.
The CLASS 1 LASER
PRODUCT MARKING is
located on the rear exterior.
The following caution label is located inside the unit.
SAFETY-RELATED COMPONENT WARNING!!
COMPONENTS IDENTIFIED BY MARK 0 OR DOTTED
LINE WITH MARK 0 ON THE SCHEMATIC DIA GRAMS
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.
2
TABLE OF CONTENTS
CX-JN1
Ver 1.2
1. SERVICING NOTES ................................................ 4
2. GENERAL
Location of Controls ....................................................... 7
3. DISASSEMBLY
3-1. Disassembly Flow ........................................................... 9
3-2. Case (SIDE-L/R) ............................................................. 10
3-3. Case (Top) ....................................................................... 10
3-4. Tray Panel........................................................................ 11
3-5. CD Mechanism Deck (CDM74S-K6BD72)................... 11
3-6. Front Panel Section ......................................................... 12
3-7. Mechanical Deck (CWM43FF13) .................................. 12
3-8. Rear Cabinet Section ...................................................... 13
3-9. PT Board, MAIN Board.................................................. 13
3-10. T able Assy ....................................................................... 14
3-11. Motor (TB) Board ........................................................... 14
3-12. Motor (LD) Board........................................................... 15
3-13. Base Unit (BU-K6BD72)................................................ 15
3-14. Motor Gear Assy (Sled) (M701), BD Board .................. 16
4. TEST MODE.............................................................. 17
5. ELECTRICAL ADJUSTMENTS
CD Section ...................................................................... 19
6. DIAGRAMS
6-1. Block Diagram – CD Section – ..................................... 20
6-2. Block Diagram – TUNER/TAPE/PANEL Section –..... 21
6-3. Block Diagram – AMP/POWER SUPPLY Section – ... 22
6-4. Note for Printed Wiring Boards and
Schematic Diagrams ....................................................... 23
6-5. Printed Wiring Board – BD Section – ........................... 24
6-6. Schematic Diagram – BD Section – .............................. 25
6-7. Printed Wiring Boards – CHANGER Section –............ 26
6-8. Schematic Diagram – CHANGER Section – ................ 27
6-9. Schematic Diagram – MAIN Section (1/4) –................ 28
6-10. Schematic Diagram – MAIN Section (2/4) –................ 29
6-11. Schematic Diagram – MAIN Section (3/4) –................ 30
6-12. Schematic Diagram – MAIN Section (4/4) –................ 31
6-13. Printed Wiring Board – MAIN Section – ...................... 32
6-14. Printed Wiring Board – HP Section – ........................... 33
6-15. Schematic Diagram – HP Section – .............................. 33
6-16. Printed Wiring Board – PANEL Section – .................... 34
6-17. Schematic Diagram – PANEL Section –....................... 35
6-18. Printed Wiring Boards – KEY Section – ....................... 36
6-19. Schematic Diagram – KEY Section – ........................... 37
6-20. Printed Wiring Board – PT Section –
(AEP, UK, CIS, MX, KR, AUS) ..................................... 38
6-21. Schematic Diagram – PT Section –
(AEP, UK, CIS, MS, KR, AUS)...................................... 39
6-22. Printed Wiring Board – PT Section –
(E, E51, SP, TW) ............................................................. 40
6-23. Schematic Diagram – PT Section –
(E, E51, SP, TW) ............................................................. 41
6-24. IC Pin Function Description ........................................... 45
7. EXPLODED VIEWS
7-1. Case Section .................................................................... 47
7-2. Front Panel Section-1...................................................... 48
7-3. Front Panel Section-2...................................................... 49
7-4. Front Panel Section-3...................................................... 50
7-5. Front Panel Section-4...................................................... 51
7-6. Chassis Section ............................................................... 52
7-7. CD Mechanism Deck Section-1
(CDM74S-K6BD72) ....................................................... 53
7-8. CD Mechanism Deck Section-2
(CDM74S-K6BD72) ....................................................... 54
7-9. CD Mechanism Deck Section-3
(CDM74S-K6BD72) ....................................................... 55
7-10. Base Unit Section (BU-K6BD72) .................................. 56
8. ELECTRICAL PARTS LIST ............................... 57
• Abbreviation
•
AUS : Australian model
EA : Saudi Arabia model
E51 : Chilean and Peruvian models
KR : Korean model
SP : Singapore model
TW : Taiwan model
3
CX-JN1
Ver 1.2
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 objectiv e lens.
LASER DIODE AND FOCUS SEARCH OPERATION
CHECK
Carry out the “S curve check” in “CD section adjustment” and
check that the S curve waveforms is output three times.
UNLEADED SOLDER
Boards requiring use of unleaded solder are printed with the leadfree 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 –
PART No.
MODEL PART No.
CIS model 4-245-154-4
E, Singapore and Taiwan models 4-245-201-0
Chilean and Peruvian models 4-245-201-2
AEP and UK models 4-245-201-3
Korean and Australian models 4-245-201-6
Saudi Arabia model 4-245-279-0
[]
[]
[]
[]
[]
[]
4
HOW TO OPEN THE DISC TRAY WHEN POWER SWITCH TURNS OFF.
1
Remove the case (side-L).
2
Turn the loading gear in the direction of arrow A.
A
CX-JN1
3
Pull-out the disc tray.
5
CX-JN1
SERVICE POSITION
– CD mechanism deck –
main board (CN691)
BD board (CN710)
– Tape mechanism deck –
Connect wire (flat type) (19 core) to
main board (CN691) and BD board (CN710).
BD board (CN710)
panel board (CN601)
Connect wire (flat type) (13 core) to
panel board (CN601) and mechanical deck.
main board (CN301)
6
M
• LOCATION OF CONTROLS
SECTION 2
GENERAL
CX-JN1
Ver 1.2
This section is extracted from
instruction manual.
Main unit: front
En
1 DISC CHANGE
Rotates the CD trays.
2 POWER 6STANDBY/ON
Switches the unit on and off (standby).
The red indicator flashes when receiving a signal from
the remote.
3 MODE
Selects various modes (ECO and Repeat/Shuffle/
Programmed playback, etc.) when used in combination
with ENTER and MULTI JOG.
4 ENTER
Fixes the modes and the time (ECO, Repeat/Shuffle/
Programmed playback, clock, and timer, etc.) when used
in combination with ENTER and MULTI JOG.
5 MULTI JOG
When used in combination with ENTER and MULTI JOG,
CD: selects a track and Repeat/Shuffle/Programmed
playback.
Tuner: selects a preset station.
Tape: specifies tape length.
Clock and Timer: sets the time.
i-Bass: selects a frequency range.
Spectrum analyzer, ECO and Dimmer: selects the mode.
6 PHONES jack
Plug in here an optional headphones set with a mini
stereo plug (ø3.5 mm). Speaker output is canceled.
7 SYNC DUB
Starts dubbing a whole tape.
wREC/REC MUTING
Starts recording.
8 DISC DIRECT PLAY 1-3
Selects a disc.
9 zOPEN/CLOSE
Opens or closes the disc compartment.
0 TAPE A/B
Selects Tape function, and deck A or B.
TUNER/BAND
Selects Tuner function and the radio band.
VIDEO/AUX
Selects the function of external equipment connected to
VIDEO/AUX jacks.
CD
Selects CD function.
! Remote sensor
Receives a signal from the remote.
@ VOLUME
Adjusts the volume.
# TREBLE
Enhances high frequency sound.
$ BASS
Emphasizes low frequency sound.
% i-Bass
Produces rich and clear low frequency sound.
^ PTY (AEP, UK)
Displays a program type for RDS (Radio Data System)
RT (AEP, UK)
Displays text information for RDS (Radio Data System)
& cPLAY/PRESET
When the unit is turned off: activates or deactivates
DEMO.
CD and Tape: starts playback.
Tuner: tunes into a preset station.
sSTOP/CLEAR
CD and Tape: stops playback.
Tuner: clears a station preset.
fTUNING DOWN, gTUNING UP
CD: searches a track in fast forward or fast reverse
playback when held down.
Tape: fast forwards or rewinds the tape.
Tuner: manually tunes down or up within the band.
aPAUSE/SET
CD and Tape: pauses playback.
Tuner: stores the received station in to preset.
* MIC MIXING (Except AEP, UK, CIS)
Adjusts the microphone volume.
MIC jack (Except AEP, UK, CIS)
Connects the microphone here.
ain unit: rear
1 AM LOOP,
Plug in the supplied AM and FM antennas here.
2 VIDEO/AUX jacks
Accepts analog sound signals from external equipment.
Connect using an optional connecting cable with RCA
phono plugs (red plug to R jack, white plug to L jack).
Refer also to the operating instructions of your equipment.
To switch function to external input, press VIDEO/AUX.
Tip:
To change the displayed name for this function, turn the
unit on, then hold down VIDEO/AUX and press POWER
on the unit. Repeat the procedure to select "VIDEO",
"AUX" or "TV".
3 # SPEAKER terminals
Connect the speaker cord of the supplied front speakers
here.
4 AC voltage selector (E, Chilean, Peruvian, Saudi Arabia, Singapore, Taiwan)
Switches AC voltage between 110 - 120V and 220 - 240V .
Make sure it matches your local voltage.
5 AC power cord
FM 75 Ω terminals
7
CX-JN1
Ver 1.1
Remote control
Buttons with the same or similar names with the main unit
basically have the same function.
1 POWER
2 1-0/10, +10
CD: selects a CD track of the specified number.
Tuner: tunes in to the station with the specified preset
number.
The numbered buttons take on these functions below when pressed
with SHIFT held down
EDIT
Enters AI Edit Recording or Programmed Edit Recording
mode when pressed in stop mode.
BAND
Selects Tuner function and the radio band.
:
TAPE A/B
TUNER MODE
Switches between stereo or monaural FM reception.
KARAOKE (Except AEP, UK, CIS)
Selects a Multiplex mode.
3 r, t
CD: selects a track.
Tuner: selects a preset station.
Tape: specifies tape length.
BASS and TREBLE: adjusts the level.
Clock and Timer: sets the time.
4 PLAY MODE
Selects Shuffle or Programmed playback in CD function.
REPEAT
Enters CD repeat playback mode.
ENTER
5 CLOCK/TIMER/SET
Enters timer setting mode.
CLOCK/TIMER/SELECT
Selects timer playback, timer recording or timer off.
6 DISPLAY
Displays the time and the remaining time for CD.
7 SHIFT
Hold down when pressing a numbered button to change
its function to that printed above the number.
e.g.)
"Press SHIFT+BAND on the remote" indicates "Hold
down SHIFT and press '2' (BAND)". Doing so makes you
be able to select Tuner function and the radio band.
8 FUNCTION
Switches the active function among CD, TAPE, TUNER
and VIDEO (AUX or TV).
9 DISC SKIP
Select a disc.
0 c/d
When the unit is turned off: activates or deactivates
DEMO.
CD and Tape: starts playback.
s
CD and Tape: stops playback.
f,g
CD: searches a track in fast forward or fast reverse
playback when held down.
Tape: fast forwards or rewinds the tape.
Tuner: manually tunes down or up within the band.
a
CD and Tape: pauses playback.
! SLEEP
Switches the sleep-timer on/off and selects the duration.
@ VOLUME (+, -)
Adjusts the volume.
# SOUND
Selects BASS or TREBLE setting mode
CLEAR
Clears a track of the CD programmed playback and a
Radio preset station.
Note
buttons not explained above (
The
SPECTRUM) do not operate for this unit.
and
The button not explained above (
operate for AEP, UK and CIS models.
ALBUM N, M
KARAOKE) does not
Setting the clock
Use the remote.
1
Press CLOCK/TIMER/SET.
Go to step 3 when the time appears and the 'hour' flashes.
2
Press r or t repeatedly until "CLOCK
SET" appears in the display and then press
ENTER.
3
Press r or t repeatedly to set the hour
and then press ENTER.
4
Press r or t repeatedly to set the minute
and then press ENTER.
The time display stops flashing and the clock starts from
00 seconds.
•MULTI JOG is also available in place of r or t.
To display the time
Press DISPLAY on the remote. The time will be displayed for
6 seconds.
If "- -:- -" appears when the unit is turned off
There has been a power interruption. Re-set the clock.
8
• This set can be disassembled in the order shown below.
Set
3-2. CASE
(SIDE-L/R)
(Page 8)
3-3. CASE (TOP)
(Page 8)
3-4. TRAY PANEL
(Page 9)
3-6. FRONT PANEL
SECTION
(Page 10)
3-8. REAR CABINET
SECTION
(Page 11)
3-7. MECHANICAL
DECK
(CWM43FF13)
(Page 10)
3-9. PT BOARD,
MAIN BOARD
(Page 11)
3-14. MOTOR GEAR ASSY (SLED) (M701),
BD BOARD
(Page 14)
3-13. BASE UNIT
(BU-K6BD72)
(Page 13)
3-10. TABLE ASSY
(Page 12)
3-11. MOTOR (TB)
BOARD
(Page 12)
3-12. MOTOR (LD)
BOARD
(Page 13)
3-5. CD MECHANISM DECK
(CDM74S-K6BD72)
(Page 9)
Note 1: The process described in can be performed in any order.
Note 2: Without completing the process described in , the next process can not be performed.
3-1. DISASSEMBLY FLOW
CX-JN1
SECTION 3
DISASSEMBLY
9
CX-JN1
s
w
Note: Follow the disassembly procedure in the numerical order given.
3-2. CASE (SIDE-L/R)
5
case (side-L)
1
two case screws
3
2
two screws
(BVTP3
×
10)
2
two screws
(BVTP3
×
10)
1
case screw
3-3. CASE (TOP)
4
case (top)
4
2
claw
3
1
3
4
case screw
1
5
case (side-R)
1
two screws
(BVTP3 × 10)
two case screw
10
2
claw
2
cla
2
claw
3-4. TRAY PANEL
)
1
Turn the loading gear
in the direction of arrow
2
Pull-out the disc table.
4
tray panel
A
3
four claws
CX-JN1
.
A
3-5. CD MECHANISM DECK (CDM74S-K6BD72)
5
CD mechanism deck
(CDM74S-K6BD72)
3
screw
(BVTP3
×
10)
1
wire (flat type) (19 core
(CN691)
2
connector
(CN701)
4
two screws
(BVTP3
×
10)
3
screw
(BVTP3
×
10)
11
CX-JN1
3-6. FRONT PANEL SECTION
3
wire (flat type) (11 core)
(CN694)
2
headphone board
1
screw
(BVWHTP)
6
front panel section
3-7. MECHANICAL DECK (CWM43FF13)
4
5
three screws
(BVTP3
3
mechanical deck
(CWM43FF13)
4
connector
(CN302)
connector
(CN301)
×
10)
2
six screws
(BVTP3
×
10)
12
4
ground mechanical plate
1
wire (flat type) (13 core)
3-8. REAR CABINET SECTION
)
1
wire (flat type)
(11 core: Except AEP, UK)
(15 core: AEP, UK)
(CN801)
3
rear cabinet section
2
2
three screws
(BVTP3
screw
(BVTP3
×
×
CX-JN1
Ver 1.2
10
10)
3-9. PT BOARD, MAIN BOARD
•
Abbreviation
E51 : Chilean and peruvian models
EA : Saudi Arabia model
(EXCEPT
8
9
E, E51, EA, SP, TW
6
screw
(BVTP3
×
10)
two screws
(ITC+4-8)
PT board
7
Remove the PWB PT HLDR
in the direction of the arrow.
)
8
two screws
(ITC+4-8)
A
4
5
screw
(BVTT3
clamp
SP : Singapore model
TW : Taiwan model
(E, E51, EA, SP, TW)
5
screw
(BVTP3
×
8)
8
PT board
A
3
connector
(CN090) (E, E51, SP, TW)
(CN091) (EXCEPT E, E51, SP, TW)
×
10)
7
two screws
(ITC+4-8)
7
two screws
(ITC+4-8)
A
6
Remove the PWB PT HLDR
in the direction of the arrow.
1
4
screw
(BVTT3
screw (BVIT3B)
×
8)
1
two screws
(BVIT3B)
2
main board
13
CX-JN1
)
d
3-10. TABLE ASSY
two claws
5
A
2
Pull-out the table assy.
6
table assy
3-11. MOTOR (TB) BOARD
1
screw
(PTPWH M2.6)
2
table (loading)
1
Turn the loading gear
in the direction of arrow
3
belt (table)
4
hook
3
wire (flat type) (5 core
(CN702)
A
.
14
4
connector
(CN731)
6
5
two screws
(BTTP M2.6)
motor (TB) boar
3-12. MOTOR (LD) BOARD
)
4
motor (LD) board
3
two screws
(BTTP M2.6)
CX-JN1
1
3-13. BASE UNIT (BU-K6BD72)
belt (loading)
6
2
connector
(CN704)
9
base unit
(BU-K6BD72
7
three insulators
3
three coil springs
(insulator)
2
three stoppers (BU)
1
three screws
(BTTP M2.6)
8
insulator
5
coil spring
(insulator)
4
screw
(PTPWH M2.6)
15
CX-JN1
)
3-14. MOTOR GEAR ASSY (SLED) (M701), BD BOARD
7
gear (A)
6
claw
2
two screws
×
3)
(P2
qa
BD board
1
Remove two
solders.
8
gear (B)
5
wire (flat type) (16 core
(CN708)
0
motor gear assy (SLED)
(M701)
4
9
Remove two solders.
3
screw (BTP2.6 × 8)
16
SECTION 4
TEST MODE
CX-JN1
Ver 1.1
MC 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. In the standby status, while pressing the x button, press the
[POWER] button.
2. The set is reset, then becomes standby status.
GC TEST MODE
Procedure:
1. Press the [POWER] button to turn the power on.
2. While pressing the x button, press the [POWER] button for
5 seconds.
3. It change displays in order of model type, version and suffix at
2 seconds interval, then the display is back to normal status.
AMP TEST MODE
Procedure:
1. In the status where AC plug is disconnected, while pressing
the [VIDEO/AUX] button, connect the AC plug to turn the
power on. Then enter the AMP test mode and display “AMP
TEST”.
2. If turn the [VOLUME] knob clockwise, it displays “VOLUME
MAX”, and if turn the knob counterclockwise, it displays
“VOLUME 0”.
3. If the [TREBLE] and [BASS] knobs are turned clockwise or
counterclockwise, it change displays in order of “EQ MAX”,
“EQ MIN” and “EQ FLAT”.
4. To release from this mode, disconnect the AC plug and turn
the power off.
CHANGE-OVER OF AM TUNER STEP BETWEEN
9 kHz AND 10 kHz (Except AEP, UK and CIS models)
•A step of AM channels can be changed o ver between 9 kHz and
10 kHz.
Procedure:
1. Press the [POWER] button to turn the power on.
2. While pressing the [TUNER] button, press the [POWER] but-
ton to the display on fluorescent indicator tube 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 TV, VIDEO or A UX (MD) of the e xternal function
input.
Procedure:
1. Press the [POWER] button to turn the power on.
2. While pressing the [VIDEO/AUX] button, press the [POWER]
button.
3. Each time this operation is operated, it change displays in or-
der of “TV”, “VIDEO” and “AUX”.
DISC TRAY LOCK
Procedure:
1. Press the
2. While pressing the x button, press the [ OPEN/CLOSE]
button for 5 seconds.
3. The message “LOCKED” is displayed and the tray is locked.
(Even if exiting from this mode, the tray is still locked)
4. To release this lock, while pressing the x button, press the
[ OPEN/CLOSE] button for 5 again.
Z
5. The message “UNLOCKED” is displayed and the tray is unlocked.
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 x button, press the
[POWER] button to turn the power on.
Z
[CD] button to enter the CD repeat 5 limit cancel mode and
repeat mark blinks on the fluorescent indicator tube.
3. To release this mode, press the [POWER] button to turn the
power off.
17
CX-JN1
CD TEST MODE
•This mode can run the CD sled motor freely. Use this mode, for
instance, when cleaning the pickup.
Procedure:
1. In the status where AC plug is disconnected, while pressing
the [CD] button, connect the AC plug to turn the power on.
2. When enter this mode, it displays “CD TEST” and few sec-
onds later, all segments turn on of the fluorescent indicator
tube.
3. To release from this mode, disconnect the AC plug and turn
the power off.
In this mode, it operates as following table.
Button Operation Purpose of use
M Move the pick-up to outside track Sled circuit check
m Move the pick-up to inside track Tracking circuit check
Mechanism operation check
Optical pick-up check
N Playback a CD Servo block check
If it cannot focus on, it continuous focus search
x When playback a CD: stop playback APC circuit check
When stop a CD: Laser current measure
display “READING” (blink) Focus search waveform check
continuous laser diode on Tracking balance check
continuous focus search (not made focus on)
X Pause, Tracking servo off
(ignore CLV error)
18
p
p
SECTION 5
ELECTRICAL ADJUSTMENTS
CX-JN1
CD SECTION
Note:
1. CD Block is basically designed to operate without adjustment. Therefore,
check each item in order given.
2. Use YEDS-18 (3-702-101-01) unless otherwise indicated.
3. Use an oscilloscope with more than 10MΩ impedance.
4. Clean the object lens by an applicator with neutral detergent when the
signal level is low than specified value with the following checks.
S-CURVE CHECK
Oscilloscope
BD board
TP(FE)
TP(VC)
Procedure :
1. Connect an oscilloscope to TP (FE) and TP (VC).
2. Turn the power on.
3. Load a disc (YEDS-18) and actuate the focus search. (In
consequence of open and close the disc tray, actuate the focus
search)
4. Confirm that the oscilloscope waveform (S-curve) is
symmetrical between A and B. And confirm peak to peak level
within 3 ± 0.5 Vp-p.
Note: Clear RF signal waveform means that the shape “ ◊ ” can be clearly
distinguished at the center of the waveform.
RF signal waveform
VOLT/DIV : 200mV
TIME/DIV : 500ns
±
level : 1.3
0.3Vp-
Connecting Location: BD board
– BD Board (Conductor side) –
S-curve waveform
symmetry
A
±
within 3
B
Note: •Try to measure several times to make sure than the ratio
of A : B or B : A is more than 10 : 7.
•Take sweep time as long as possible and light up the
brightness to obtain best waveform.
0.5Vp-
RF LEVEL CHECK
BD board
TP(RF)
TP(VC)
Procedure :
1. Connect an oscilloscope to TP (RF) and TP (VC).
2. Turn the power on.
3. Load a disc (YEDS-18) and playback.
4. Confirm that oscilloscope waveform is clear and check if RF
signal level is correct or not.
oscilloscope
TP (VC)
TP (RF)
TP (FE)
IC721
1919
CX-JN1
6-1. BLOCK DIAGRAM – CD Section –
OPTICAL PICK-UP
BLOCK
(KSM-213DCP)
A
DETECTOR
A
D
C
B
E
F
LASER DIODE
PD
D
C
I-V AMP
B
E
F
LD
LD
PD
AUTOMATIC
POWER CONTROL
Q701
SECTION 6
DIAGRAMS
CD DSP
IC721
FIN2
8
RF AMP
FIN1
7
TIN1
9
TIN2
10
LDD
80
LDS
79
APC
TBAL
EQ,
AGC
RF
PH, BH
A/D
CONVERTER
SERVO
PROCESSOR
D/A
CONVERTER
LCHO
EFMIN
4
3
ERROR
CORRECT
D/A
CONVERTER
EXTERNAL
AUDIO IN
SERIAL OUT
CLOCK
GENERATOR
FSX/16MIN
RCHO
ASDFIN
ASDACK
ASLRCK
DATA
DATACK
LRSY
EFLG
C2F
16MOUT
XIN
XOUT
42
45
57
56
55
60
59
58
53
52
50
26MP3RES
54
49
48
16.9344MHz
R-CH
• R-ch is omitted due to same as L-ch.
• SIGNAL PATH
: CD
X701
CD
(Page 22)
A
2-AXIS
DEVICE
(FOCUS)
(TRACKING)
S701
(LIMIT)
FOCUS/TRACKING COIL DRIVE,
SPINDLE/SLED MOTOR DRIVE
IC722
VO3(+)
18
17 VO3(–)
11 VO2(+)
12 VO2(–)
FOIN
20TIN
10
70 LIMIT SW
TDO
FDO23SLDO22SPDO25CONT4
20
21
COMMAND
INTERFACE
WRQ
SYSTEM CONTROLLER
IC901 (1/2)
DO
64
DI
63
CL
62
CE
61
65
67DRF
66RES
99 CD DO
98 CD DI
100 C D CLK
5 CD CE
97 CD WRQ
95 CD DRF
4 CD RESET
M751
(LOADING)
1MUTE
94POWER
27HOLD
11RESET
18POWER DOWN
74CD NUMBER SENS
20CD BUSY
LOADING MOTOR DRIVE
IC701
M
4 OUT1
2 OUT2
7FIN
9RIN
MUTE
POWER
HOLD
RESET
P-DOWN
LEVEL SHIFT
Q731
+
LM-F
LM-R
OPEN
CLOSE
ROTARY
ENCODER
S711
TABLE ADDRESS
O-POWER,
SENSOR
IC731
S751
OPEN/CLOSE
DETECT
LM-L, LM-R,
TM-L, TM-R
O-MUTE,
HOLD
RESET,
P-DOWN
B
C
D
(Page 22)
(Page22)
(Page 22)
M701
(SLED)
M702
(SPINDLE)
M
M
26 VO4(+)
27 VO4(–)
2 VO1(+)
1 VO1(–)
25SLIN
M741
M
(TABLE)
3SPIN
7LDS
TABLE MOTOR DRIVE
IC712
4 OUT1
2 OUT2
TM-F
7FIN
TM-R
9RIN
2020
6-2. BLOCK DIAGRAM – TUNER/TAPE/PANEL Section –
CX-JN1
Ver 1.1
(EXCEPT AEP, UK, CIS)
(Page 22)
MIC
H
FM/AM TUNER PACK
FM 75Ω
(COAXIAL)
AM LOOP
FM ANT
AM ANT
• R-ch is omitted due to same as L-ch.
• SIGNAL PATH
: TUNER
: TAPE PLAY (DECK-A)
: TAPE PLAY (DECK-B)
: TAPE REC
TUNED
STEREO
RDS DATA
RDS INT
FM-SOUT
(AEP, UK)
L-CH
R-CH
DO
MUTE
PB,
REC
B+
(CD-VM)
DATA, CLK,
S-OUT, LCK
TAPE MECHANISM
DECK BLOCK
MM
(CAPSTAN/REEL)
(DECK-A)
(DECK-B)
F
G
(Page 22)
(Page 22)
REC
Q310
MOTOR DRIVE
Q601, 604
(DECK-A)
Q602, 605
(DECK-B)
Q603, 606
PB
REC BIAS
SWITCH
Q311, 312
S6
S7
S12
S10
S13
S9
S11
S8
CAPM+
A-SOL
B-SOL
A-PHOTO
B-PHOTO
A-HALF
B-HALF
A-MODE
B-MODE
REC (FWD)
REC (REV)
MUTING
Q305
MUTING
Q307, 309
PB SWITCH
Q301
PB SWITCH
Q303
18
SO
5 LCK
3 DATA
4 CLK
11 V-BASS
MOTOR/PLUNGER DRIVE,
+3.3V
Q601
6
PB2
O-MOTOR
LED DRIVE
IC201
R-CH
O-BIAS
SOL A
SOL B
BIAS OSC
L311
7
8
9
10
BIAS OSC
CAPSTAN/REEL
PLUNGER DRIVE
PLUNGER DRIVE
TU
(Page 22)
E
R-CH
DATA
DI
CL
CE
CLK
PLL-CE
TUNED
STEREO
TU-MUTE
RDS-DATA
RDS-CLK
RDS-SIG
IFC
CLK
(AEP, UK)
VOLUME
TREBLE
BASS
MULTI JOG
S301 – 323
(FRONT PANEL KEY)
DATA
IFC
CLK
PLL-CE
TUNED
STEREO
TU-MUTE
RDS-DATA
RDS-CLK
RDS-SIG
ROTARY
ENCODER
S801
ROTARY
ENCODER
S803
ROTARY
ENCODER
S802
ROTARY
ENCODER
S804
REMOTE CONTROL
RECEIVER
IC801
DATA
96 TU DI
88 CLK
75 TUNED
76 STEREO
85 TU MUTE
28 RDS CKL
19 TU-SIG/MIC
77 VOL A
78 VOL B
81 TRE A
82 TRE B
83 BASS A
84 BASS B
79 JOG A
80 JOG B
29 RMC
SYSTEM CONTROLLER
3 TU/EVOL DO
9 TU CE
2 RDS DO
(EXCEPT CIS)
KEY1 –
KEY3
26 – 24
IC901 (2/2)
S18 – 22, 24 –30
KEYSCAN
A PHOTO/S6
B PHOTO/S7
A HALF/S12
B HALF/S10
A MODE/S13
B MODE/S9
REC FWD/S11
REC REV/S8
S16, 17, 23
S1 – S5, 14, 15,
G1 – G11
LCK
XT1
CF1
CF2
8
1312XT2
15
16
93POWER LED
92
47
48
54
52
55
50
53
49
58, 59, 65
41-45, 56, 57,
60-64, 66-71, 73
30-40
(DECK-A)
HRPE1
(REC/PB/ERASE)
(DECK-B)
X901
32.768kHz
X902
8.64MHz
S6
S7
S12
S10
S13
S9
S11
S8
L-CH
HP1
(PB)
R-CH R-CH
L-CH
R-CH R-CH
ERASE
LED901
1 STANDBY/ON
D620 – 627
S6 – S13
LCK
S-OUT
LED201
i-BASS
B+ SWITCH
B+
FL902
FLUORESCENT
INDICATOR TUBE
Q607
CLK
DATA
B+
2121
CX-JN1
Ver 1.2
6-3. BLOCK DIAGRAM – AMP/POWER SUPPLY Section –
(EXCEPT AEP, UK, CIS)
MIC LEVEL
AGC
(Page 20)
(Page 21)
(Page 21)
(Page 20)
J401
MIC
J602
VIDEO/AUX
A
E
D
L
R
CD
TU
PB, REC PB
F
LM-L, LM-R,
TM-L, TM-R
Q401
MIC AMP
IC401 (1/2)
R-CH
VR401
MIC MIXING
REC
MIC AMP
IC401 (2/2)
A-IN
19
B-IN
21
C-IN
23
PB1P
2
REC1O
28
PB-OUT
13
D402
CONT
MIC
+
ELECTRICAL VOLUME
INPUT SELECT,
IC601
MIC
H
R-CH
DBFB CONTROL
Q641
17
VOL-IN
7
LM-L
LM-R
TM-L
TM-R
BASS
OUT
(PAGE 21)
18
14
15
12
13
LM-L
LM-R
TM-L
TM-R
FEED BACK
SWITCH
Q643
BASS BOOST ENHANCER
IC671
1
CONTROL
Q674 – 677
BOOST1 –
BOOST4
OUTA6
INA
GIN14VREF7BBE
13
BOOST
8 – 11 5 – 7
FREQUENCY
CONTROL
Q671 – 673
FREQ1 –
BBE CONTROL,
LOADING/TABLE
MOTOR DRIVE
IC672
6
FREQ3
DATA3CLK
2
(EXCEPT AEP, UK, CIS)
SWITCHING
Q231
R-CH
SWITCHING
Q232
R-CH
CURRENT
MIRROR
Q105, 107
–VP
+VP
BIAS
FINAL DRIVE
Q121, 123
R-CH
PRE DRIVE
Q101, 103
MUTING
Q181
R-CH
MUTING
CONTROL
Q183
16
BBE
LCK
4
OVER CURRENT
DETECT
Q281
CASCADE
Q109, 111
Q117, 119
OVER LOAD
DETECT
Q129
+
HOLD
Q282
+
+VH
+VL
+VH
+VL
OUTPUT LEVEL
OUTPUT LEVEL
R-CH
DC DETECT
Q063, 064
Q045, 046
DETECT
Q233, 234
DETECT
Q235
+
+
+
HOLD
+
TH101, 102
THERMAL DETECT
Q291, 292
AC DETECT
D067, 068
PROTECT
Q047
R-CH
+
R-CH
(EXCEPT AEP, UK, CIS)
VH1, 2 (AC)
VH1, 2 (AC)
J221
PHONES
J203
SPEAKER
+
–
+
–
L
R
(Page 21)
(Page 20)
DATA, CLK,
S-OUT, LCK
G
• R-ch is omitted due to same as L-ch.
• SIGNAL PATH
: CD
: TUNER
: TAPE PLAY (DECK-A)
: TAPE REC
: AUX IN
: MIC
RESET,
C
P-DOWN
RESET
P-DOWN
RESET SWITCH
Q901
DATA
• Abbreviation
AUS : Australian model
E51 : Chilean and Peruvian models
EA : Saudi Arabia model
KR : Korean model
SP : Singapore model
TW : Taiwan model
RESET SIGNAL
GENERATOR
IC502
D504
+3.3V
+4V
REGULATOR
IC501
V-STBY
+3.3V (CD)
+4V
POWER TRANSFORMER
PT002 (E, E51, EA, SP, TW)
PT011 (AEP, UK, CIS, KR, AUS)
RECT
D091, 092
S-OUT
VCC
CLK
(SUB)
LCK
D697
+4V
REGULATOR
IC003
B+ SWITCH
Q023, 024
MUTE
POWER
FLUORESCENT
INDICATOR TUBE
VDD
+6.4V (CD)
CD-VM
TO
VM
REGULATOR
D691 – 694
REGULATOR
TO
POWER AMP
BLOCK
VSS
VF1
VF2
–VFL
* Q041 (EXCEPT AEP, UK, CIS)
+9V
IC002
+9V
IC001
(EXCEPT AEP, UK, CIS)
+VH
–VH
+VL
–VL
–30V
REGULATOR
Q041, 043
* D021, 022
(EXCEPT AEP, UK, CIS)
RECT
D019 – 022
RECT
D009
RECT
D015 – 018
(AEP, UK, CIS)
POWER
HOLD
TRANSFORMER
PT002 (AEP, UK, CIS, KR, AUS)
PT004 (E, E51, EA, SP, TW)
VM1
VM2
VH1
VH2
VL1
VL2
RELAY DRIVE
Q022
POWER
(MAIN)
(EXCEPT AEP, UK, CIS)
RY001
(E, E51, EA, SP, TW)
S001
VOLTAGE SELECTOR
110 – 120V
220 – 240V
AEP, UK, CIS,
KR, AUS
MUTE, POWER,
HOLD
(AC IN)
B
(Page 20)
2222
CX-JN1
CD KEY board
SENSOR board
BD board
MOTOR (TB) board
DRIVER board
MOTOR (LD) board
SW board
KEY board
PT board
HEADPHONE board
PANEL board
MAIN board
TUNER PACK
Ver 1.2
6-4. NOTE FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS
Note on Printed Wiring Board:
• X : parts extracted from the component side.
• Y : parts extracted from the conductor side.
• x : parts mounted on the conductor side.
• : Pattern from the side which enables seeing.
(The other layers' patterns are not indicated.)
• Indication of transistor.
C
Q
B
E
B
These are omitted.
Q
CE
These are omitted.
Note on Schematic Diagram:
• All capacitors are in µF unless otherwise noted. pF: µµF
50 WV or less are not indicated except for electrolytics
and tantalums.
• All resistors are in Ω and 1/
specified.
f
•
• 2 : nonflammable resistor.
• 5 : fusible resistor.
• C : panel designation.
Note: The components identified by mark 0 or dotted line
• A : B+ Line.
• B : B– Line.
•Voltages and waveforms are dc with respect to ground
•Voltages are taken with a V OM (Input impedance 10 MΩ).
•Waveforms are taken with a oscilloscope.
• Circled numbers refer to waveforms.
• Signal path.
•Abbreviation
: internal component.
with mark 0 are critical for safety.
Replace only with part number specified.
under no-signal conditions.
– BD Section –
no mark : CD PLAY
– Other Sections –
no mark : FM
Voltage variations may be noted due to normal production tolerances.
Voltage variations may be noted due to normal production tolerances.
F : TUNER (FM/AM)
E : T APE PLAY (DECK A)
d : TAPE PLAY (DECK B)
G : REC
J : CD PLAY
L : AUX IN
N : MIC INPUT
AUS: Australian model
E51 : Chilean and Peluvian models
EA : Saudi Arabia model
KR : Korean model
SP : Singapore model
TW : T aiwan model
: Impossible to measure
∗
4
W or less unless otherwise
• Circuit Boards Location
2323
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