Pioneer X-CM31-K Service manual

CD RECEIVER SYSTEM

PHONES AUDIO IN iPad

X-CM31-K

VOLUMETIMER

ORDER NO.

RRV4350

X-CM31-K

X-CM31-W,-R ,-T
X-CM31-K

,-W

/CXE

X-CM31DAB-K,-W,-R,-T

THIS MANUAL IS APPLICABLE TO THE FOLLOWING MODEL(S) AND TYPE(S).

Model Type Power Requirement Remarks

X-CM31-K SYXE8 AC 220 V to 240 V

X-CM31-W SYXE8 AC 220 V to 240 V

X-CM31-R SYXE8 AC 220 V to 240 V

X-CM31-T SYXE8 AC 220 V to 240 V

X-CM31-K CXE AC 120 V

X-CM31-W CXE AC 120V

X-CM31DAB-K VXE8 AC 220 V to 240 V

X-CM31DAB-W VXE8 AC 220 V to 240 V

X-CM31DAB-R VXE8 AC 220 V to 240 V

X-CM31DAB-T VXE8 AC 220 V to 240 V

/SYXE8

/SYXE8

/VXE8

PIONEER CORPORATION 1-1, Shin-ogura, Saiwai-ku, Kawasaki-shi, Kanagawa 212-0031, Japan

PIONEER ELECTRONICS (USA) INC. P.O. Box 1760, Long Beach, CA 90801-1760, U.S.A.
PIONEER EUROPE NV Haven 1087, Keetberglaan 1, 9120 Melsele, Belgium
PIONEER ELECTRONICS ASIACENTRE PTE. LTD. 253 Alexandra Road, #04-01, Singapore 159936

PIONEER CORPORATION

2012

K-FZV AUG.

2012 Printed in Japan

1

2 3 4

SAFETY INFORMATION

A

This service manual is intended for qualified service technicians; it is not meant for the casual do-it-
yourselfer. Qualified technicians have the necessary test equipment and tools, and have been trained
to properly and safely repair complex products such as those covered by this manual.
Improperly performed repairs can adversely affect the safety and reliability of the product and may
void the warranty. If you are not qualified to perform the repair of this product properly and safely, you
should not risk trying to do so and refer the repair to a qualified service technician.

WARNING

This product may contain a chemical known to the State of California to cause cancer, or birth defects or other reproductive
harm.

B

CAUTION

Health & Safety Code Section 25249.6 - Proposition 65

C

THIS PIONEER APPARATUS CONTAINS
LASER OF CLASS 1.
SERVICING OPERATION OF THE APPARATUS
SHOULD BE DONE BY A SPECIALLY
INSTRUCTED PERSON.

LABEL CHECK

D

IMPORTANT

D58-5-2-2a_A1_En

The following caution appears on your unit.
Location: inside of the unit

The laser component is capable of emitting radiation exceeding the limit for CLASS 1.

WARNING !

Aspecially instructed person should do servicing operation of the apparatus.

Laser Pickup specifications and Laser characteristics

For CD Wave length (typ) : 790 nm

Operation output : 5 mW CW, Class 1
Maximum output : Class 1 (Under fault condition)

E

F

2

1

2 3 4

X-CM31-K

5

6 7 8

CONTENTS

SAFETY INFORMATION..........................................................................................................................................................2

1. SERVICE PRECAUTIONS .................................................................................................................................................... 4

1.1 NOTES ON SOLDERING ...............................................................................................................................................4

2. SPECIFICATIONS................................................................................................................................................................. 5

2.1 ACCESSORIES ..............................................................................................................................................................5

2.2 SPECIFICATIONS ..........................................................................................................................................................5

3. BASIC ITEMS FOR SERVICE ..............................................................................................................................................6

3.1 CHECK POINTS AFTER SERVICING ........................................................................................................................... 6

3.2 PCB LOCATIONS ........................................................................................................................................................... 7

3.3 JIGS LIST ....................................................................................................................................................................... 7

4. BLOCK DIAGRAM ................................................................................................................................................................ 8

4.1 OVERALL CONNECTION DIAGRAM............................................................................................................................. 8

4.2 BLOCK DIAGRAM........................................................................................................................................................ 10

5. DIAGNOSIS ........................................................................................................................................................................12

5.1 TROUBLESHOOTING..................................................................................................................................................12

5.2 HOW TO EVALUATE LD DETERIORATION OF PICKUP ASSY..................................................................................14

6. SERVICE MODE ................................................................................................................................................................. 15

6.1 CONFIRM SOFTWARE VERSION AND DESTINATION INFORMATION.................................................................... 15

6.2 HOW TO CHANGE THE DESTINATION......................................................................................................................15

6.3 HOW TO CHANGE THE AM STEP.............................................................................................................................. 16

7. DISASSEMBLY ................................................................................................................................................................... 17

. EACH SETTING AND ADJUSTMENT ................................................................................................................................25

8

8.1 NECESSARY ADJUSTMENT POINTS ........................................................................................................................ 25

8.2 HOW TO UPDATE SOFTWARE................................................................................................................................... 25

9. EXPLODED VIEWS AND PARTS LIST...............................................................................................................................26

9.1 PACKING SECTION ..................................................................................................................................................... 26

9.2 EXTERIOR SECTION .................................................................................................................................................. 28

10. SCHEMATIC DIAGRAM .................................................................................................................................................... 32

10.1 SERVICE MAIN PCB (1/8) : MCU .............................................................................................................................. 32

10.2 SERVICE MAIN PCB (2/8) : IPOD CP CHIP..............................................................................................................34

10.3 SERVICE MAIN PCB (3/8) : FMDAB ..........................................................................................................................36

10.4 SERVICE MAIN PCB (4/8) : AMP............................................................................................................................... 38

10.5 SERVICE MAIN PCB (5/8) : MPEG............................................................................................................................40

10.6 SERVICE MAIN PCB (6/8) : ADC...............................................................................................................................42

10.7 SERVICE MAIN PCB (7/8) : POWER (1/2).................................................................................................................44

10.8 SERVICE MAIN PCB (8/8) : POWER (2/2).................................................................................................................46

10.9 SERVICE VFD+KEY PCB ..........................................................................................................................................48

10.10 SERVICE IPOD PCB................................................................................................................................................ 50

10.11 SERVICE USBPHONE PCB..................................................................................................................................... 52

11. PCB CONNECTION DIAGRAM........................................................................................................................................ 54

11.1 SERVICE MAIN PCB (Non DAB Model ).................................................................................................................... 54

11.2 SERVICE MAIN PCB (DAB Model ) ........................................................................................................................... 56

11.3 SERVICE VFD+KEY PCB ..........................................................................................................................................58

11.4 SERVICE IPOD PCB.................................................................................................................................................. 60

.5 SERVICE USBPHONE PCB....................................................................................................................................... 61

11

A

B

C

D

E

F

X-CM31-K

5

6 7 8

3

1

2 3 4

1. SERVICE PRECAUTIONS

1.1 NOTES ON SOLDERING

A

• For environmental protection, lead-free solder is used on the printed circuit boards mounted in this unit.
Be sure to use lead-free solder and a soldering iron that can meet specifications for use with lead-free solders for repairs
accompanied by reworking of soldering.

• Compared with conventional eutectic solders, lead-free solders have higher melting points, by approximately 40 ºC.
Therefore, for lead-free soldering, the tip temperature of a soldering iron must be set to around 373 ºC in general, although
the temperature depends on the heat capacity of the PC board on which reworking is required and the weight of the tip of
the soldering iron.

Do NOT use a soldering iron whose tip temperature cannot be controlled.

Compared with eutectic solders, lead-free solders have higher bond strengths but slower wetting times and higher melting

B

temperatures (hard to melt/easy to harden).

The following lead-free solders are available as service parts:

• Parts numbers of lead-free solder:
GYP1006 1.0 in dia.
GYP1007 0.6 in dia.
GYP1008 0.3 in dia.

C

D

E

F

4

1

2 3 4

X-CM31-K

5

6 7 8

2. SPECIFICATIONS

2.1 ACCESSORIES

Remote control unit X-CM31-K/SYXE8
X-CM31-R/SYXE8
X-CM31-T/SYXE8
X-CM31-W/SYXE8 :
X-CM31-K/CXE
X-CM31-W/CXE
X-CM31DAB-K/VXE8
X-CM31DAB-W/VXE8
X-CM31DAB-R/VXE8
X-CM31DAB-T/VXE8
AC Power cord SYXE8: VPE003202-0040
CXE: VPA004212-0040
VXE8: VPE00A213-0030
AM Loop antenna SYXE8: VTA100009-0010
CXE: VTA100009-0010
FM Wire antenna VTA400001-0020
Non-skid pads x 8 ASW503021-0045
iPad stand ASW200111-0001
Operating instructions SYXE8: YOM200145-0001
CXE: YOM200145-0004
VXE8: YOM200145-0002

AAA Dry cell battery x 2
Warranty card

A

WIR249004-AM01 (AXD7670)

WIR249004-AM02 (AXD7678)

WIR249004-AM05 (AXD7672)

WIR249004-AM06 (AXD7671)

B

C

2.2 SPECIFICATIONS

• Amplifier section

RMS Power Output: . . . . . . . . . . . . . . . . . . . . . . . . 15 W + 15 W

(1 kHz, 10 %, T.H.D., 8 Ω)

• Tuner section

Frequency Range (FM) . . . . . . . . . . . . . . 87.5 MHz to 108 MHz

Antenna Input (FM) . . . . . . . . . . . . . . . . . . . . 75 Ω unbalanced

Frequency Range (AM) . . . . . . . . . . . . . . 522 kHz to 1620 kHz

(Except DAB model)

Antenna (AM) . . . . . . . . . . . . . . . . . . . . . . . . . . . . Loop antenna

(Except DAB model)

•Miscellaneous

iPod/iPhone connector port . . . . . . . . . . . . . . . . . . . . . 5 V, 1 A

USB terminal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5 V, 2.1 A

Power source . . . . . . . . . . . . . AC 220 V to 240 V, 50 Hz/60 Hz

Power consumption

Power on. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37 W

Power stand-by. . . . . . . . . . . . . . . . . . . . . . . . . . 0.5 W or less

Dimensions. . . . . . . 200 mm (W) x 123 mm (H) x 250.6 mm (D)

Weight (without package) . . . . . . . . . . . . . . . . . . . . . . . . 2.0 kg

• Speaker

Magnetically shieled speaker system
Type

2-way type speaker system

5 cm Tweeter

9.4 cm Woofer

Maximum input power . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 W

Impedance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Ω

Dimensions . . . . . . . 120 mm (W) x 200 mm (H) x 232.6 mm (D)

Weight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2.0 kg/each

D

E

Note

• The specifications are applicable when the power supply
is 230 V.

• Specifications and the design are subject to possible
modifications without notice, due to improvements.

5

6 7 8

X-CM31-K

F

5

1

2 3 4

3. BASIC ITEMS FOR SERVICE

3.1 CHECK POINTS AFTER SERVICING

To keep the product quality after servicing, confirm recommended check points shown below.

A

No. Procedures Check points

Confirm whether the customer complain has been solved. The customer complain must not be reappeared.

1

Check the CD playback. Audio and operations (search, etc) must be normal.

2

Check the USB playback. Audio and operations must be normal.

3

Check the tuner operations. Audio and operations (Station Search, etc) must be normal.

4

Audio and operations must be normal.

B

Check the Line input playback. Audio and operations must be normal.

5

Check the appearance of the product. No scratches or dirt on its appearance after receiving it for

6

See the table below for the items to be checked regarding audio.

Item to be checked regarding audio

Distortion

Noise

C

Volume too low

Volume too high

Volume fluctuating

Sound interrupted

Cleaning

NamePosition to be cleaned Part No. Remarks

D

Cleaning liquidPickup lens GEM1004

Cleaning paper GED-008

service.

Lubricants and Glues List

Name Lubricants and Glues No. Remarks

Sillicone Bond GYA1001 Refer to "9.2 EXTERIOR SECTION"

E

F

6

1

2 3 4

X-CM31-K

5

3.2 PCB LOCATIONS

6 7 8

SERVICE VFD+KEY PCB SERVICE IPOD PCB

B

D

SERVICE USBPHONE PCB Loader MechaLoader Mecha

SERVICE MAIN PCB

AC

Tr averse Mecha

A

B

C

NOTES: - Parts marked by “NSP” are generally unavailable because they are not in our Master Spare Parts List.

-

The > mark found on some component parts indicates the importance of the safety factor of the part.

Therefore, when replacing, be sure to use parts of identical designation.

Mark No. Description Part No.

LIST OF ASSEMBLIES

1..SERVICE MAIN PCB (SYXE8) APE205240-0001

1..SERVICE MAIN PCB (CXE) APE205240-0004

1..SERVICE MAIN PCB (VXE8) APE205240-0002

1..SERVICE VFD+KEY PCB APE205250-0001

Mark No. Description Part No.

1..SERVICE IPOD PCB APE205260-0001

1..SERVICE USBPHONE PCB APE205270-0001

1..Loader Mecha WMA200001-0001

1..Traverse Mecha WVD500002-0002

3.3 JIGS LIST

Name Jig No. Remarks

SP Connection cable

GGD1827

Corresponding to the Dedicated
SP Connector

D

E

F

X-CM31-K

5

6 7 8

7

1

2

I

U

P

D

D

P

D

D

N

2 3 4

4. BLOCK DIAGRAM

4.1 OVERALL CONNECTION DIAGRAM

A

A

A 1/8 - A 8/8

To ipod video board

AUX_R_IN

GND

IPOD_VIDEO

3

21

VIDEO_GND

CN3

To Loader

To Loader

To lidar

SLE

SLE

LOA

LOA

TRAY_O

AG

TRAY_

GND
GND

CDMDI

PUH_CDLD

VR-CD

A_+5V

VREF1

GND

CD/DVD-SW

RAD­RAD+
FOC+

FOC-

S

S

NC
NC

NC

NC

E

F
B
A

RF

D
C

SERVICE MAIN PCB
(SYXE8 : APE205240-0001)
(CXE : APE205240-0004)
(VXE8 : APE205240-0002)

To AUX IN

B

GND

AUX_L_IN

21

3

CN20

HP_DET

123 4

HP_L

GND

HP_R

4P Line

3P AUX IN Line

to earphone board

C

CN19

To USB board

IPOD5V

IPOD5V

54

To panel power To panel key To panel display

CN6

To ipod board

-28V

CN412

-28V

3P KEY LIne

STB_KEY

3

21

CN21

B

3

21

STB_KEY

AD_KEY1

GND

AD_KEY1

12V

GND

D

+5V

123 4

CN901

panel power 4P Line

E

SERVICE USBPHONE PCB

D

(APE205270-0001)

8

NC

7

AUX_L_IN

GND

AUX _R IN

56

HP_DET

HR_L

GND

HR_R

123 4

F

CN18

123 4

12V

+5V

GND

To panel power

GND

VOLA_CTL

VOLB_CTL

TIMER_LED

10

11

9 8 76543

GND

STB_LED

IR_IN

MCU3.3V

CN1

VFD signal 11P Line

11

10

8 76543

9

GND

IR_IN

MCU3.3V

STB_LED

VOLA_CTL

VOLB_CTL

TIMER_LED

SERVICE VFD+KEY PCB
(APE205250-0001)

CN16

To panel key

DP_DO

DP_CLK

DP_DO

DP_CLK

DP_STB

21

21

DP_STB

GND

GND

6543

CN401

USB_D_

IPOD+5V

CN4

ACCESSOR

GND

USB_D+

8

1

2 3 4

X-CM31-K

5

GND

GND

6 7 8

A

When ordering service parts, be sure to refer to "EXPLODED VIEWS and PARTS LIST" or "PCB PARTS LIST".
The > mark found on some component parts indicates the importance of the safety factor of the part.
Therefore, when replacing, be sure to use parts of identical designation.

CN3

To Loader

o Loader

TRAY_OUT

TRAY_IN

PUH_CDLD

To lidar

CD/DVD-SW

SB board

CN6

To ipod board

GND

USB_D+

1

USB_D_

6543

CN4

CN10

SP+

SP-

SLED+

SLED-

LOAD+

LOAD-

AGND

CN8

GND
GND

NC
NC

CDMDI

NC

VR-CD

NC

E

A_+5V

VREF1

GND

F
B
A

RF

D
C

RAD­RAD+
FOC+

FOC-

IPOD5V

IPOD5V

CD_USB_DM#

543 2

ACCESSOR

IPOD+5V

21

123 4

CN9

5

123 4

23

22 24

21

20

15 17 19

14 16 18

12

11 13

10

2468

1 3 579

CD_USB_DP#

AGND

1

IPOD_DET

5P Line

24P FFC Line

4P Line

4

LOAD-

TRAY_OUT

123

AGND

TRAY_IN

5

LOAD+

6P IPOD signal Line

SP+

SP-

6543 21

SLED+

3P IPOD Video Line

B

SLED-

C

Loader Mecha

D

1

CN401

Y PCB

)

CN6

7

IPOD_DET

ACCESSOR

VIDEO_GND

8

9

GND

C

IPOD_VIDEO

SERVICE IPOD PCB
(APE205260-0001)

E

CN6

5P USB line

CD_USB_DM#

AGND

CD_USB_DP#1IPOD5V

5432

IPOD5V

D-

D+

56

USB_POWER

123 4

GND

SERVICE USBPHONE PCB

D

(APE205270-0001)

F

X-CM31-K

5

6 7 8

9

1

S

T

2

I

4.2 BLOCK DIAGRAM

A

2 3 4

IR

U402

VFD Power Line

POWER

LED

B

C

50/60HZ

SYXE8,VXE8 : AC220~240V
CXE : AC120V

D

Power Supply

AMP19V

SYS5V

LDO

(SGM2021)

U5

TPS2553

U3

AIC1519

U4

SYS3.3V

IPOD5V

USB5V

CD

LOAD

RF 24P Line

Motor driver

Line

tray

CD Deiver Line

(AM5888)

U15

Decoder

(SPHE8104GW)

U16

SERV

B

SDRAM

(EM638165TS-

6G)U18

MPEG_I

FLA

(EN25

U17

UART

MCU3.3V USB

I2C

IPOD CP

USB

R NET

(CHG)

USB sw

(SGM471)

U8

IPAD 5V

USB Line

2.1A

USB

Ipod Line

IPOD

USB sw

(SGM4717)

U6

IPOD 5V
1A

E

F

10

1

2 3 4

X-CM31-K

(FMI341S2500)

UA2

R NET
(CHG)

5

6 7 8

A

IR

U402

POWER

SERVICE VFD+KEY PCB

B

SDRAM

(EM638165TS-

6G)U18

LED

VFD

(8 charactors / 14 segments)

VFD Driver

(ET16311)

U401

VFD 11P Line

I2S

I2S Audio sw

(74VHC157 )

U12

KEYS

KEY Line

I2S Audio sw

(74VHC157 )

U13

19V

Audio AMP

(TAS5719)

U14

earphone
Line

15WX

2

(8R)

B

PH

C

er

4GW)

I2C

17)

MPEG_I2S

FLASH

(EN25T80)

U17

UART

IPOD CP

(FMI341S2500)

UA2

R NET
(CHG)

MCU

(PIC18F46J11)

U1

RTC

I2C

EEPROM

(24C02)

U2

SERVICE MAIN PCB

A

12.288MHz
U19

ADC _I2S

I2C

UART

MCLK

ADC _CLK

Audio ADC

(CS5346)

U20

DAB

Module

(Option)

U10

LINE_R/L

AUX_R/L

TU_I2S_DATA

I2S_CLK

I2C

FM /TUNER

4731

CN7

I2S

AM/FM

TUNER

CN7

TUNER
Module

Audio Line

AUX IN

AUX IN

D

E

Line IN

F

X-CM31-K

5

6 7 8

11

1

5. DIAGNOSIS

5.1 TROUBLESHOOTING

A

A

2 3 4

B

C

B

If connection is ok but
yet no working, need to
replace AC power code

C

All function not

working

Check AC power wire
connection all right

Check D911

STB5V and U1

3.3V all right

Check Q906 Q908 Q912
Q913 net all right for system
supply power

Change
SERVICE MAIN PCB

Yes

Yes

All SOURCE no

sound

Check remote whether it is mute or
VOL into minimum state, if ok, check
SPK connector all right

Press mute key or
adjust VOL

Check Q908 signal
line or change Q908

Check U1 pin 31

Check U14 pin19
line all right

Check U14 U13 and

AMP19V is all right

Not OK

Check U1 pin 31
line or update mcu
software

Yes

Check

Q908 5V

OK

Audio IN and line IN

both no sound

Check U20 pin 5/36/46
supply 3V3, pin14 supply

5V power

Yes

Check U20 pin 6 signal
line all right

Yes

Check U20 pin 1/2 line
all right

Yes

Check U20
pin 41/42/43/44 line
all right

Yes

Check U12 pin 1/16 line
all right

D

Line IN no

Check input jack
connector and source
signal all right

E

Check U20 pin 9/10
signal line all right

F

DE F

sound

Yes

Audio IN no

sound

Check input jack
connector and source
signal all right

Yes

Check the signal line between
SERVICE USBPHONE PCB
connector and SERVICE MAIN PCB
all right

Yes

Check U20 pin 11/12
net all right

Headphone no

output

Check headphone jack and
inserted headphone all right

Yes

Check the signal line between
SERVICE USBPHONE PCB
connector and SERVICE MAIN PCB
all right

Yes

Check U14 pin 8 signal
line power supply 3V3

Yes

Check U14
pin 1/2/3/4/47/48 line
all right

Check the connection
between USB socket
connector and SERVICE
MAIN PCB all right

Check U8 pin1 signal line
5V VCC power supply,
check pin 2/3/9/10 signal
line all right

G

USB function

does not work

Yes

Yes

Check U16 pin 78 line for
USB power supply

12

X-CM31-K

1

2 3 4

5

6 7 8

H

Radio no sound

output (DAB)

Check U11 pin 1 output
VDD12 and pin 6 output

VDD18 is normal

Yes

Check U10 pin 30/35
RD33 is normal

Yes

Check U10
pin 7/8/22/25/28/29 signal
line all right

Yes

Defective IC, U10,
Change SERVICE MAIN PCB

I

Radio no sound

output

Check CN7 Tuner Module
solder and connection
all right

Yes

Defective Tuner Module
Change SERVICE MAIN PCB

J

Video no

output

Set TV OUT by remote
control unit to display
picture on TV

Yes

Check JK2 (video output)
connector and TV cable
all right

Yes

Check iPod socket solder
and video line all right

Yes

Change
SERVICE IPOD PCB

K

IPOD no play

Check the connection between
SERVICE IPOD PCB connector
and SERVICE MAIN PCB all right

Yes

Check U3 U4 U6 are
working all right

Yes

Check CN6 is all right,
important is USB
D+/D- and 5V VCC

Yes

Change
SERVICE MAIN PCB

A

B

C

L

CD no play

Check the connection
between Loader Mecha and
SERVICE MAIN PCB

Yes

Check Q1 Q7 Q8 are
working all right

Yes

Check CN8 pin 8 (RF waveform)
on the SERVICE MAIN PCB
*Refer to the RF waveform photograph.

OK

Change
SERVICE MAIN PCB

Not OK

Change
Traverse Mecha

D

RF waveform

E

F

X-CM31-K

5

6 7 8

13

1

2 3 4

5.2 HOW TO EVALUATE LD DETERIORATION OF PICKUP ASSY



If CD cannot be played, LD of pickup ASSY may be deteriorated.

A

Carry out the evaluation in the following procedure.

Evaluate the waveform of CN8 8 pin (refer to the photo) of SERVICE MAIN PCB.



RF level : 1.0V(+/-0.25V)

If the value is 0.75V or less, 780-nm LD is deteriorated.

If LD is deteriorated based on the evaluation result,
replace Traverse Mecha with a new one.

B

Measure the voltage value between R129 and L73(3.3V) of SERVICE

MAIN PCB shown in the figure below.



If the value is 0.4V or more, 780-nm LD is deteriorated.

C

SERVICE MAIN PCB

D

DC voltage
measurement

E

F

14

1

2 3 4

X-CM31-K

5

6 7 8

6. SERVICE MODE

6.1 CONFIRM SOFTWARE VERSION AND DESTINATION INFORMATION

[Procedure]

1. Press STANDBY/ON key to turn on.

2. Press CD key to select CD function.

3. Press OPEN/CLOSE key to open disc tray.

4. Press STOP key.

5. Press 1 key.

6. Press 2 key.

7. Press 3 key.

8. Software version and destination information appear in main display.

9. If pressing any key, information disappears.

A

[The example of information]

E_C24M22 (Non DAB model)

*The first character indicates product destination.

E means Europe destination except for UK.
A means North America destination.

*C24M22 indicates software version.

C24 means software version of CD module, SPHE8104GW is C24.
M22 means software version of Main module, PIC18F46J11 is M22.

UKC25M35 (DAB Model)

*The first alphabet [UK] of two characters indicates product destination.

UK means United Kingdom destination.

*C25M35 indicates software version.

C25 means software version of CD module, SPHE8104GW is C25.
M35 means software version of Main module, PIC18F46J11 is M35.

6.2 HOW TO CHANGE THE DESTINATION

[Procedure]

1. Press STANDBY/ON key to turn on.

2. Press CD key to select CD function.

3. Press OPEN/CLOSE key to open disc tray.

4. Press STOP key.

5. Press 9.

6. Press 9.

7. Press 9.

8. [DEST CHG] blink in main display.

9. Select the destination by pressing LEFT or RIGHT key.
[DEST E] means Europe destination except for UK.

[DEST A] means North America destination.

10. Press ENTER key after selecting destination.

11. [WAITING] and [DEST OK] are displayed, then turn off automatically.

*If destination is changed, all settings return to default.
(X-CM31DAB : Can not change DESTINATION.)

B

C

D

E

F

X-CM31-K

5

6 7 8

15

1

2 3 4

6.3 HOW TO CHANGE THE AM STEP

[Procedure]

1. Insert AC cord.

A

2. Not power on status, press and hold STOP key on main unit.

3. AM frequency step is displayed in main display.
[AM 10KSP] means AM frequency is 10kHz step.
[AM 9KSP] means AM frequency is 9kHz step.

*If changing the AM step, all AM presets return to default.
(X-CM31DAB : Can not change AM frequency. X-CM31DAB has no AM Function.)

[Remarks]

The destination and AM Frequency Step settings are set to the appropriate settings for board
of each region before shipment.
It is setting needlessness fundamentally at the time of board exchange.

B

When there should be fault, setting change is possible in the above-mentioned procedure.

C

D

E

F

16

1

2 3 4

X-CM31-K

5

7. DISASSEMBLY

6 7 8

Note 1 : Do NOT look directly into the pickup lens. The laser beam may cause eye injury.
Note 2 : Even if the unit shown in the photos and illustrations in this manual may differ from your product, the procedures

described here are common.

[1] Front Section

[1-1] Tray Door

(1) Press the STANDBY/ON button to turn on

the power.

(2) Press the OPEN/CLOSE button to open

the Tray.

(3) Remove upward the Tray Door.

1

5

2

4

3

A

B

C

Tray Door

(4) Press the OPEN/CLOSE button to close

the tray.

(5) Press the STANDBY/ON button to turn off

the power.

• How to open the Tray when the power
cannot be turned on

When the Tray cannot be opened because the
power cannot be turned on, open the Tray
forcibly in the method shown below.

Insert a Screwdriver (small) into the Slit located
at the bottom of the unit, and slide the Loading
Rack in the direction of blue arrow, as indicated
in the photo.

If the Tray pops out a little, fully pull it out by
hand.

Loading Rack

D

Screwdriver
(small)

E

Slit

Tray open

• Bottom view

F

X-CM31-K

5

6 7 8

17

1

2 3 4

[1-2] Top Cover, SERVICE IPOD PCB

Remove the eight screws.

(1)

A

B

C

X-CM31-K/SYXE8 : HST053084-4060
X-CM31-R/SYXE8
X-CM31-T/SYXE8
X-CM31-K/CXE
X-CM31DAB-K/VXE8

(

X-CM31DAB-R/VXE8
X-CM31DAB-T/VXE8

X-CM31-W/SYXE8 : HST143084-1060
X-CM31-W/CXE

(

X-CM31DAB-W/VXE8
(2) Remove the Top Cover while lifting the rear

side of Top Cover.

Note :

*1: Remove them carefully because the SERVICE

IPOD PCB fixed on Top Cover side and the internal
parts of the product are connected with cable.

*2: If the engagement of the Top Cover with the

Hooks on Front Panel ASSY is too tight to
remove, press the central section of the Top
Cover from inside, then it becomes easy to
remove the Front Panel ASSY.

Hold

Press from inside

)

)

To p Co ve r

2

1

1

1

1

1

1

To p Co ve r

1

1

3

D

(3) Disconnect the two connectors and then

remove the Top Cover.

Note :

If diagnosis is not performed, the following steps
(4) through (7), are not required to be performed.

E

(4) Remove the screw (HSR050304-5080) and

then remove the Grounding Spring iPod.

(5) Remove the three screws.

(HSR050304-5080)

(6) Unhook the four Hooks and then remove the

iPod Bracket (with the SERVICE IPOD PCB).

Top CoverFront Panel ASSY

3

CN3

• Top Cover (inside)

iPod Bracket

5

CN4

SERVICE MAIN PCB

Grounding Spring iPod

6

6

5

4

6

SERVICE IPOD PCB

5

Front

F

18

1

2 3 4

X-CM31-K

6

5

(7) Unhook the two Hooks and then remove the

SERVICE IPOD PCB.

[1-3] Front Section

(1) Release the two cables from the cord

clamper.
(2) Disconnect the six connectors.
(3) Remove the two screws (HST143084-1060)

and then remove the three GND cables.

6 7 8

iPod Bracket

7

7

SERVICE IPOD PCB

GND Cables

A

B

3

GND Cable

3

Notes on assembling

∗3: Nothing should be connected to the connector

:CN2, CN11. Please be careful not to connect

the cable by mistake.
(The CN11 connector is equipped only to the

initial lot. The connector :CN11 is not equipped

to the later lots.)

(4)

Remove the two screws.

X-CM31-K/SYXE8 : HST053084-4060
X-CM31-R/SYXE8
X-CM31-T/SYXE8
X-CM31-K/CXE
X-CM31DAB-K/VXE8

(

X-CM31DAB-R/VXE8
X-CM31DAB-T/VXE8

X-CM31-W/SYXE8 : HST143084-1060
X-CM31-W/CXE

(

X-CM31DAB-W/VXE8
(5) Unhook the three Hooks of the Front Panel

ASSY and then remove the Front Section.

)

)

2

2

2

2

CN21

CN1

CN6

SERVICE MAIN PCB

4

5

∗3

CN11

5

CN901

∗3

CN2

1

2

2

CN20

CN19

• Bottom view

4

5

Front Panel ASSY

C

D

E

F

X-CM31-K

5

6 7 8

19