Aiwa CXJN-10 Service manual
CX-JN10
SERVICE MANUAL
Ver 1.0 2004.03
CX-JN10 is the tuner, amplifier, cassette deck
and CD player section in JAX-N10/PK10.
CD
Section
Tape deck
Section
AEP Model
UK Model
E Model
Australian Model
Model Name Using Similar Mechanism CX-JN1
CD Mechanism Type CDM74S-K6BD72
Base Unit Name BU-K6BD72
Optical Pick-up Block Name KSM-213DCP
Optical Pick-up Name KSS-213D
Model Name Using Similar Mechanism CX-JN1
Tape Transport Mechanism type CWM43FF13
TUNER
FM tuning range 87.5 MHz to 108 MHz
FM
usable sensitivity (IHF)
AEP, UK models:
Except AEP, UK models:
FM antenna terminal 75 ohms (unbalanced)
AM
tuning range
AEP, UK, E, EA, TW models:
E51 model:
SP, AUS models:
AM usable sensitivity 350 µV/m
AM antenna Loop antenna
AMPLIFIER
Power
output
AEP, UK models:
Except AEP, UK models:
Total harmonic distortion 0.08 % (6 W, 1 kHz, 6 ohms, DIN
Input VIDEO/AUX: 400 mV
Outputs SPEAKER:
16.8 dBf
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)
AUDIO)
MIC: 1.7 mV (10k ohms)
(Except AEP, UK models)
6 ohms or more
PHONES: 32 ohms or more
SPECIFICATIONS
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)
GENERAL
Power
requirements
AEP, UK models:
E, E51, SP models:
EA model:
TW model:
AUS model:
Deck B: recording/playback x 1,
erase x 1
(λ = 780 nm)
Emission duration:
continuous
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
120 V AC, 50 Hz/60 Hz
240 V AC, 50 Hz/60 Hz
COMPACT DISC DECK RECEIVER
Power consumption
AEP, UK models:
Except AEP, UK 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 models:
E51 model:
E, EA, SP, TW, AUS models: 6.8 kg
Specifications and external appearance are subject to change
without notice.
COPYRIGHT
Check copyright laws relevant to recordings from discs, tuner
or tape for the country where the unit is to be used.
40 W
74 W
6.1 kg
6.7 kg
• Abbreviation
AUS: Australian model
E51 : Chilean and Peruvian models
EA : Saudi Arabia model
SP : Singapore model
TW : Taiwan model
9-877-593-01 Sony Corporation
2004C05-1 Home Audio Company
© 2004.03 Published by Sony Engineering Corporation
CX-JN10
Notes on chip component replacement
• Never reuse a disconnected chip component.
• Notice that the minus side of a tantalum capacitor may be dam-
aged 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.
SAFETY-RELATED COMPONENT WARNING!!
COMPONENTS IDENTIFIED BY MARK 0 OR DOTTED
LINE WITH MARK 0 ON 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.
2
TABLE OF CONTENTS
CX-JN10
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. Table 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 Diagr am – 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, AUS) .............................................................. 38
6-21. Schematic Diagram – PT Section –
(AEP, UK, AUS) .............................................................. 39
6-22. Printed Wiring Board – PT Section –
(E, EA, E51, SP, TW) ..................................................... 40
6-23. Schematic Diagram – PT Section –
(E, EA, E51, SP, TW) ..................................................... 41
7. EXPLODED VIEWS
7-1. Case Section .................................................................... 47
7-2. Tape Deck Section .......................................................... 48
7-3. Panel Board Section ........................................................ 49
7-4. Key Section ..................................................................... 50
7-5. Front Cabinet Section ..................................................... 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
E51 : Chilean and Peruvian models
EA : Saudi Arabia model
SP : Singapore model
TW : T aiw an model
3
CX-JN10
SECTION 1
SER VICING 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.
AEP and UK models No model number label
Taiwan model 4-248-949-2
Singapore model 4-249-031-6
Australian model 4-249-128-2
Saudi Arabia model 4-249-129-6
E model 4-249-130-8
Chilean and Peruvian models 4-249-802-3
[]
[]
[]
[]
[]
[]
RELEASING THE DISC TRAY LOCK
The disc tray lock function for the antitheft of an demonstration
disc in the store is equipped.
Releasing Procedure :
While pressing the
x key, press the OPEN/CLOSE Z key for 5
seconds. The message “UNLOCKED” is displayed and the tray is
unlocked.
Note: When “LOCKED” is displayed, the tray lock is not released by
turning power on/off with the [POWER] key.
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-JN10
3
Pull-out the disc tray.
5
CX-JN10
SERVICE POSITION
– CD mechanism deck –
main board (CN691)
– Tape mechanism deck –
Connect wire (flat type) (19 core) to
main board (CN691) and BD board (CN710).
BD board (CN710)
panel board (CN601)
main board (CN302)
Connect wire (flat type) (13 core) to
panel board (CN601) and mechanical deck.
main board (CN301)
6
• LOCATION OF CONTROLS
SECTION 2
GENERAL
CX-JN10
This section is extracted from
instruction manual.
Main unit: front
Refer to the pages indicated in parentheses for details.
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.
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 models)
Displays a program type for RDS (Radio Data System)
RT (AEP, UK models)
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.
f TUNING DOWN, g TUNING UP
CD: searches a track in fast for ward or fast reverse
playback when held down.
Tape: fast forwards or rewinds the tape.
Tuner: manually tunes down or up within the band.
aPAU SE/SET
CD and Tape: pauses playback.
Tuner: stores the received station in to preset.
* MIC MIXING (Except AEP, UK models)
Adjusts the microphone volume.
MIC jack (Except AEP, UK models)
Connects the microphone here.
Main unit: rear
Refer to the pages indicated in parentheses for details.
1 AM LOOP, FM 75 Ω terminals
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 totheoperatinginstructions 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, Saudi Arabia,
Chilean, Peruvian, Singapore models)
Switches AC voltagebetween110- 120V and 220 - 240V.
(E, Chilean, Peruvian, Singaporemodels)
Switches AC voltage between110-127V and 220 - 240V.
(Saudi Arabia model)
Make sure it matches your local voltage.
5 AC power cord
7
CX-JN10
Remote control
Refer to the pages indicated in parentheses for details.
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.
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.
You can first press SHIFT, then a numbered button.
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
The buttons not explained above (ALBUM N, M,
SPECTRUMandKARAOKE) do not operate for this
unit.
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.
Tip: (Except AEP, UK models)
"AM 12:00" indicates midnight and "PM 12:00" noon.
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 10)
3-3. CASE (TOP)
(Page 10)
3-4. TRAY PANEL
(Page 11)
3-6. FRONT PANEL
SECTION
(Page 12)
3-8. REAR CABINET
SECTION
(Page 13)
3-7. MECHANICAL
DECK
(CWM43FF13)
(Page 12)
3-9. PT BOARD,
MAIN BOARD
(Page 13)
3-14. MOTOR GEAR ASSY (SLED) (M701),
BD BOARD
(Page 16)
3-13. BASE UNIT
(BU-K6BD72)
(Page 15)
3-10. TABLE ASSY
(Page 14)
3-11. MOTOR (TB)
BOARD
(Page 14)
3-12. MOTOR (LD)
BOARD
(Page 15)
3-5. CD MECHANISM DECK
(CDM74S-K6BD72)
(Page 11)
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-JN10
SECTION 3
DISASSEMBLY
9
CX-JN10
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-JN10
.
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-JN10
3-6. FRONT PANEL SECTION
4
3
screw
(BVWHTP)
HP board
1
screw
(BVTP3
2
×
10)
terminal
9
front panel section
3-7. MECHANICAL DECK (CWM43FF13)
7
three screws
(BVTP3
4
6
connector
(CN302)
6
connector
(CN301)
×
10)
mechanical deck (CWM43FF13)
5
wire (flat type) (11 core)
(CN694)
3
clamp
2
six screws
(BVTP3
8
connector
(CN101)
×
10)
12
5
ground mechanical plate
1
wire (flat type) (13 core)
3-8. REAR CABINET SECTION
)
1
wire (flat type)
(11 core: EXCEPT AEP, UK) (CN801)
(15 core: AEP, UK) (CN802)
3
rear cabinet section
2
2
three screws
(BVTP3
screw
(BVTP3
×
×
CX-JN10
10
10)
3-9. PT BOARD, MAIN BOARD
•
Abbreviation
E51 : Chilean and peruvian models
EA : Saudi Arabia model
(EXCEPT
8
9
E, EA, E51, SP, TW
6
screw
×
(BVTP3
two screws
PT board
7
10)
Remove the PWB PT HLDR
in the direction of the arrow.
)
8
two screws
A
4
5
screw
(BVTT3
clamp
SP : Singapore model
TW : Taiwan model
(E, EA, E51, SP, TW)
5
screw
(BV B3)
×
8)
8
PT board
A
3
connector
(CN090) (E, EA, E51, SP, TW)
(CN091) (EXCEPT E, EA, E51, SP, TW)
7
two screws
7
two screws
A
6
Remove the PWB PT HLDR
in the direction of the arrow.
1
4
screw
(BVTT3
screw (BV B3)
×
8)
1
two screws
(BV B3)
2
MAIN board
13
CX-JN10
)
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)
5
two screws
(BTTP M2.6)
6
MOTOR (TB) boar
3-12. MOTOR (LD) BOARD
)
4
MOTOR (LD) board
3
two screws
(BTTP M2.6)
CX-JN10
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-JN10
)
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-JN10
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 and UK 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 AUX (MD) of the external 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 [POWER] button to turn the power on.
2. While pressing the x button, press the OPEN/CLOSE Z
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 Z button for 5 again.
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
[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-JN10
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-JN10
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-JN10
SECTION 6
DIAGRAMS
6-1. BLOCK DIAGRAM – CD Section –
OPTICAL PICK-UP
BLOCK
(KSM-213DCP)
A
DETECTOR
A
D
C
B
E
F
D
C
I-V AMP
B
E
F
8
7
9
10
CD DSP
IC721
FIN2
FIN1
TIN1
TIN2
RF AMP
TBAL
EQ,
AGC
RF
PH, BH
A/D
CONVERTER
LCHO
EFMIN
4
3
ERROR
CORRECT
D/A
CONVERTER
RCHO
42
45
R-CH
CD
(Page 22)
A
• R-ch is omitted due to same as L-ch.
• SIGNAL PATH
: CD PLAY
EXTERNAL
AUDIO IN
SERIAL OUT
ASDFIN
ASDACK
ASLRCK
DATA
DATACK
LRSY
EFLG
C2F
FSX/16MIN
57
56
55
60
59
58
53
52
50
LASER DIODE
PD
2-AXIS
DEVICE
(FOCUS)
LD
(TRACKING)
SERVO
PROCESSOR
LD
PD
AUTOMATIC
POWER CONTROL
Q701
S701
(LIMIT IN)
SLED/SPINDLE MOTOR DRIVE,
FOCUS/TRACKING COIL DRIVE
VO3 (+)
18
17 VO3 (–)
11 VO2 (+)
12 VO2 (–)
IC722
FOIN
80
79
70 LIMIT SW
20TIN
10
LDD
LDS
APC
TDO
FDO23SLDO22SPDO25CONT4
20
21
D/A
CONVERTER
CLOCK
GENERATOR
COMMAND
INTERFACE
16MOUT
XIN
XOUT
WRQ
54
49
48
X701
16.9344MHz
MUTE,
SENSOR
IC731
DISC TRAY
ADDRESS DETECT
S751
OPEN/CLOSE
DETECT
LM-L, LM-R,
TM-L, TM-R
POWER,
HOLD
RESET,
P-DOWN
B
C
D
(Page 22)
(Page 22)
(Page 22)
DO
64
DI
63
CL
62
CE
61
65
67DRF
66RES
99 CD DO
98 CD DI
100 C D CLK
5CD CE
97 CD WRQ
95 CD DRF
4CD RESET
M751
(LOADING)
SYSTEM CONTROLLER
IC901 (1/2)
LOADING MOTOR DRIVE
M
4 OUT1
2 OUT2
IC701
1SYS-MUTE
94POWER
27HOLD
11RESET
18POWER DOWN
74CD NUMBER SENS
20CD BUSY
7FIN
9RIN
MUTE
POWER
HOLD
RESET
P-DOWN
LEVEL SHIFT
Q731
+
LM-F
LM-R
OPEN
CLOSE
ROTARY
ENCODER
S711
TABLE ADDRESS
M701
(SLED)
M702
(SPINDLE)
M
M
26 VO4 (+)
27 VO4 (–)
2 VO1 (+)
1 VO1 (–)
25SLIN
M741
M
(TABLE)
3SPIN
7MUTE
TABLE MOTOR DRIVE
IC712
4 OUT1
2 OUT2
TM-F
7FIN
TM-R
9RIN
2020
6-2. BLOCK DIAGRAM – TUNER/TAPE/PANEL Section –
TUNER PACK
FM 75Ω
(COAXIAL)
AM LOOP
(Page 22)
(EXCEPT AEP, UK)
MIC
H
• R-ch is omitted due to same as L-ch.
• SIGNAL PATH
: TUNER (FM/AM)
: TAPE PLAY (DECK-A)
: TAPE PLAY (DECK-B)
: REC
FM ANT
AM ANT
TUNED
STEREO
RDS DATA
RDS INT
FM-SOUT
(AEP, UK)
L-CH
R-CH
MUTE
R-CH
DO
DI
CL
CE
DATA
IFC
CLK
PLL-CE
TUNED
STEREO
TU-MUTE
RDS-DATA
RDS-CLK
RDS-SIG
(FRONT PANEL KEY)
VOLUME
TREBLE
BASS
MULTI JOG
S301 – 315,
S317 – 323
TU
E
DATA
IFC
CLK
PLL-CE
TUNED
STEREO
TU-MUTE
RDS-DATA
RDS-CLK
RDS-SIG
(AEP, UK)
ROTARY
ENCODER
S801
ROTARY
ENCODER
S803
ROTARY
ENCODER
S802
ROTARY
ENCODER
S804
REMOTE CONTROL
RECEIVER
IC801
(Page 22)
DATA
CLK
3 TU/EVOL DO
96 TU DI
88 CLK
9 TU CE
75 TUNED
76 STEREO
85 TUNER MUTE
2RDS DO
28 RDS CLK
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
KEY1 –
KEY3
26 – 24
SYSTEM CONTROLLER
IC901 (2/2)
A PHOTO/S6
B PHOTO/S7
A MODE/S13
REC FWD/S11
REC REV/S8
LCK
XT1
CF1
CF2
KEYSCAN
A HALF/S12
B HALF/S10
B MODE/S9
S14 – S25
S1 – S5,
S26 – S30
G1 – G11
8
1312XT2
15
16
93POWER LED
92
47
48
54
52
55
50
53
49
56-6730-40
41-45,
S12
S10
S13
S11
68-71, 73
HP1
(PB)
(DECK-A)
HRPE1
(REC/PB/ERASE)
(DECK-B)
X901
32.768kHz
X902
8.64MHz
1 STANDBY/ON
S6
S7
S9
S8
L-CH
R-CH R-CH
L-CH
R-CH R-CH
ERASE
CLK
DATA
LED901
D620 – 627
S6 – S13
LCK
S-OUT
LED201
i-BASS
B+ SWITCH
B+
FL902
FLUORESCENT
INDICATOR TUBE
Q607
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
PB
REC
Q311, 312
BIAS OSC
Q310
CAPSTAN/REEL
MOTOR DRIVE
Q601, 604
PLUNGER DRIVE
(DECK-A)
Q602, 605
PLUNGER DRIVE
(DECK-B)
Q603, 606
REC BIAS
SWITCH
S6
S7
S12
S10
S13
S9
S11
S8
B+
(CD-VM)
DATA, CLK,
S-OUT, LCK
TAPE MECHANISM
DECK BLOCK
CAPM+
MM
(CAPSTAN/REEL)
A-SOL
(DECK-A)
B-SOL
(DECK-B)
A-PHOTO
B-PHOTO
A-HALF
B-HALF
A-MODE
B-MODE
REC (FWD)
REC (REV)
PB,
REC
F
G
CX-JN10
(Page 22)
(Page 22)
2121
CX-JN10
6-3. BLOCK DIAGRAM – AMP/POWER SUPPLY Section –
(EXCEPT AEP, UK)
J401
MIC
(Page 21)
(Page 20)
(Page 21)
(Page 21)
(Page 20)
H
J602
VIDEO/AUX
A
E
F
D
MIC LEVEL
AGC
Q401
MIC AMP
IC401 (1/2)
MIC
L
R-CH
R
CD
TU
PB, REC PB
LM-L, LM-R,
TM-L, TM-R
VR401
MIC MIXING
REC
MIC AMP
IC401 (2/2)
A-IN
19
B-IN
21
C-IN
23
PB1P
2
REC1O
28
PB-OUT
6
13
D402
CONT
+
INPUT SELECT,
ELECTRICAL VOLUME
LM-L
LM-R
TM-L
TM-R
IC601
7
VOL-IN
14
15
12
13
LM-L
LM-R
TM-L
TM-R
OUT
18
LOADING/TABLE
MOTOR DRIVE
IC672
DATA3CLK
2
(EXCEPT AEP, UK)
R-CH
R-CH
CURRENT
MIRROR
Q105, 107
PRE DRIVE
Q101, 103
MUTING
Q181
R-CH
MUTING
CONTROL
Q183
LCK
4
OVER CURRENT
DETECT
Q281
CASCADE
Q109 (AEP, UK)
Q109, 111 (EXCEPT AEP, UK)
(AEP, UK)
BIAS
Q117, 119
–VP
+VP
FINAL DRIVE
Q121, 123
SWITCHING
Q231
SWITCHING
Q232
OVER LOAD
R-CH
DETECT
Q129
+
HOLD
Q282
+
+VH
+VL
–VH
–VL
+VL
–VL
R-CH
OUTPUT LEVEL
Q233, 234
OUTPUT LEVEL
+
+
DC DETECT
Q063, 064
+
HOLD
Q045, 046
+
DETECT
DETECT
Q235
THERMAL DETECT
AC DETECT
D067, 068
TH101, 102
Q291, 292
(EXCEPT AEP, UK)
PROTECT
Q047
+
VH1, 2 (AC)
VH1, 2 (AC)
R-CH
R-CH
J221
PHONES
J203
SPEAKER
+
–
+
–
L
R
(Page 21)
(Page 20)
G
C
DATA, CLK,
S-OUT, LCK
RESET,
P-DOWN
• R-ch is omitted due to same as L-ch.
• SIGNAL PATH
: CD PLAY
: TUNER (FM/AM)
: TAPE PLAY (DECK-A)
: REC
: AUX IN
: MIC INPUT
RESET
P-DOWN
RESET SWITCH
Q901
VDD (STBY)
DATA
• Abbreviation
AUS : Australian model
E51 : Chilean and Peruvian models
EA : Sausi Arabia model
SP : Singapore model
TW : Taiwan model
RESET SIGNAL
GENERATOR
IC502
+3.3V
STANDBY
SWITCH
Q902, 903
D504
+4V
REGULATOR
IC501
V-STBY
S-OUT
CLK
LCK
MUTE
+3.3V (CD)
PT002 (E, EA, E51, SP, TW)
RECT
D091, 092
D697
+4V
POWER TRANSFORMER
PT011 (AEP, UK, AUS)
REGULATOR
VCC
(SUB)
+4V
IC003
B+ SWITCH
Q023, 024
POWER
FLUORESCENT
INDICATOR TUBE
POWER
VDD
VM
+6.4V (CD)
TO
D691 – 694
CD-VM
TO
POWER AMP
BLOCK
VSS
VF1
VF2
–VFL
Q041, 043 (EXCEPT AEP, UK)
–27V REGULATOR
+9V
REGULATOR
IC002
+9V
REGULATOR
IC001
(EXCEPT AEP, UK)
+VH
–VH
+VL
–VL
Q043 (AEP, UK)
HOLD
RECT
D019, 020 (AEP, UK)
D019 – 022 (EXCEPT AEP, UK)
(AEP, UK)
RECT
D009
(AEP, UK)
RECT
D015 – 018
(EXCEPT AEP, UK)
(EXCEPT AEP, UK)
VM1
VM2
VH1
VH2
VL1
VL2
POWER TRANSFORMER
(MAIN)
PT002 (AEP, UK, AUS)
PT004 (E, EA, E51, SP, TW)
RELAY DRIVE
Q022
RY001
MUTE, POWER,
(E, EA, E51, SP)
S001
VOLTAGE SELECTOR
110 – 120V
220 – 240V
(AEP, UK, TW, AUS)
HOLD
B
(AC IN)
(Page 20)
2222
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