Pioneer CDJ-900NXS Service manual

2013

CDJ-900NXS

MULTI PLAYER

CDJ-900NXS

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

Model Type Power Requirement Remarks

CDJ-900NXS UXJCB AC 110 V to 240 V

CDJ-900NXS SYXJ8 AC 110 V to 240 V

CDJ-900NXS FLXJ AC 110 V to 240 V

CDJ-900NXS AXJ5 AC 110 V to 240 V

CDJ-900NXS KXJ5 AC 110 V to 240 V

ORDER NO.

RRV4502

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

K-MZV DEC.

2013 Printed in Japan

1

This product contains mercury. Disposal of this material may be regulated due to environmental considerations. For disposal or recycling information, please contact your local authorities or the Electronics Industries Alliance: www.eiae.org.

The backlighting lamp of LCD in this equipment contains mercury. Disposal of this material may be regulated due to environmental considerations according to Local, State or Federal Laws. For disposal or recycling information, please contact your local authorities or the Electronics Industries Alliance: www.eiae.org

IMPORTANT

THIS PION EER APPARATUS CON TA IN S LASER OF CLASS 1. SERVICING OPERATION OF THE APPARATUS SHOULD BE DON E BY A SPECIALLY INSTRUCTED PERSON.

Additional Laser Caution

1. Laser Interlock Mechanism The position of the switch (S9002) for detecting loading completion is detected by the system microprocessor, and the design prevents laser diode oscillation when the switch is not in LPS1 terminal side (when the mechanism is not clamped and LPS1 signal is high level.) Thus, the interlock will no longer function if the switch is deliberately set to LPS1 terminal side. ( if LPS1 signal is low level ). In the test mode ∗ the interlock mechanism will not function. Laser diode oscillation will continue, if pin 5 (pin 3) of AN22022A (IC7002) on the SRVB Assy is connected to GND, or else the terminals of Q7002 (Q7001) are shorted to each other (fault condition).

2. When the cover is opened, close viewing of the objective lens with the naked eye will cause exposure to a Class 1 laser beam.

For CD Wave length (typ) : 790 nm Operation output : 4.5 mW CW, Class 1 Maximum output : Class 1 (Under fault condition)

Laser Pickup specifications and Laser characteristics

LABEL CHECK

Bottom view

WARNING

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

Health & Safety Code Section 25249.6 - Proposition 65

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

2 3 4

SAFETY INFORMATION

A

B

C

D

E

F

2

1

CDJ-900NXS

2 3 4

5

6 7 8

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

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

Compared with eutectic solders, lead-free solders have higher bond strengths but slower wetting times and higher melting temperatures (hard to melt/easy to harden).

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

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

The part listed below is difficult to replace as a discrete component part. When the part listed in the table is defective, replace whole Assy.

Assy Name

Parts that is Difficult to Replace

Ref No. Function Part No. Remarks

The part listed below is difficult to replace as a discrete component part. The replaceing method see remarks.

Assy Name

JFLB Assy

JOG FL DEL1058

As the JOG FL is integrated with the FL Holder (DNF1735) with the aid of two pieces of double-back tape (Z12-016), first remove the integrated JOG FL and FL Holder, attach a new JOG FL and an FL Holder, using two pieces of double-back tape, then mount them together. (Note: As the integrated JOG FL and FL Holder are exactly the same parts as those for the CDJ-2000NXS, you can handle them in the same manner as with the CDJ-2000NXS.)

V9201

Parts that is Difficult to Replace

Ref No. Function Part No. Remarks

SRVB Assy

12V→USB5V DC/DC converter BD9328EFJ

IC with heat-pad

IC2701

12V→3.3V DC/DC converter BD9328EFJ

IC with heat-pad

IC7302

12V→7.6V DC/DC converter BD9328EFJ

IC with heat-pad

IC7303

DDCB Assy

USB CURRENT LIMIT IC TPS2557DRB

IC with heat-pad

IC2702

LCDB Assy LCD POWER IC R1290K103A

QFN package

IC2001

LCD BACKLIGHT POWER IC BD81A04EFV-M IC with heat-padIC2002 12V→5.2V DC/DC converter

BD9328EFJ IC with heat-padIC2601

12V→3.3V DC/DC converter

BD9328EFJ IC with heat-padIC2602

12V→1.2V DC/DC converter BD9328EFJ IC with heat-padIC705

MAIN Assy

DDR2 K4T1G164QF-BCE7

BGA package

IC1, IC2

MAIN CPU R8A77240D500BG2

BGA package

IC10

AUTHENTICATION CHIP H337S3959 USON package

(UltraSmallOutlineNon-lead)

IC14

DSP D810K013DZKB400 BGA packageIC301

2 3 4

1. SERVICE PRECAUTIONS

1.1 NOTES ON SOLDERING

A

B

C

1.2 NOTES ON REPLACING PARTS

D

E

F

4

1

CDJ-900NXS

2 3 4

5

About the Flash ROM (IC3) in the MAIN Assy

Replacement of the Flash ROM (IC3: DYW1838) in the MAIN Assy is not possible during service, because writing of the MAC address on the production line is required. Therefore, the Flash ROM (IC3) is not supplied as a service part. If the Flash ROM is defective, replace the whole MAIN Assy.

About work required after replacement of the Traverse Mechanism Assy (09SD)

After replacement of the traverse mechanism Assy (09SD), enter Service mode then change the drive LD lighting time to "0000". For details on how to confirm and change the LD lighting time, see "7 Drive LD life manual input" in "[3] Indication of various information" in "6.1 SERVICE MODE."

About transfer of the accumulated LD lighting time data after replacement of the MAIN Assy

This unit is equipped with self-diagnostic functions for the drives in Service mode. The service-life check for the laser diode among the self-diagnostic functions uses the accumulated lighting time for judgment. If it is 7,000 hours or less, the laser diode is judged as OK. The accumulated lighting time of the LD is stored in the Flash ROM (IC3: DYW1838) in the MAIN Assy. Therefore, after replacement of the MAIN Assy, the accumulated lighting time of the LD is cleared and proper judgment will not be possible after that. To avoid such a situation, when replacement of the MAIN Assy is required, transfer the LD accumulated lighting time data. Before replacement, confirm the drive LD lighting time in Service mode and take note of the time value. After replacement is finished, enter Service mode then change the drive LD lighting time value to what you noted. For details on how to confirm and change the LD lighting time, see "7 Drive LD life manual input" in "[3] Indication of various information" in "6.1 SERVICE MODE."

About the self-diagnostic functions for the drives

This unit has self-diagnostic functions for the drives in Service mode. Use the self-diagnostic functions to check the drives if the problem symptom pointed out by the customer is a malfunction related to the drives or if a drive-related error is logged in the error history. For details on the self-diagnostic functions for the drives, see "[5] Drive Self-Diagnosis" and "[6] Contents of Drive Self-Diagnosis" in "6.1 SERVICE MODE."

About backup of the UTILITY settings

As this unit is provided with user-settable UTILITY settings (such as the Play mode setting,) it is recommended that you back up the settings before starting repair. The settings can be stored for backup in a USB memory device. For details on how to back up and restore data, see "g How to Back Up and Restore the Settings" in "8.4 ITEMS FOR WHICH USER SETTINGS ARE AVAILABLE ."

Note on detachment of the control panel

The control panel cannot be opened wide, because the 50-pin flexible cable connecting the control panel (CN2004 on the LCDB Assy) and the main unit (CN2802 on the DDCB Assy) is short.

When the control panel must be detached, such as during diagnosis, be careful not to break the flexible cable or damage the connectors.

Control panel Section

50P flexible cable

LCDB Assy

DDCB Assy

CN2802

CN2004

Main unit

OK NG

6 7 8

1.3 SERVICE NOTICE

A

B

C

D

5

CDJ-900NXS

6 7 8

E

F

5

1

About discharging

If the 50-pin flexible cable connecting the control panel (CN2004 on the LCDB Assy) and the main unit (CN2802 on the DDCB Assy) is disconnected, be sure to unplug the AC power cord then wait 3 minutes or more before reconnecting the flexible cable. This is because the internal electrical charge remains in the power unit for a while after the AC power cord is unplugged. If the control panel is connected in such a state, the ICP (P7303) will be damaged by the inrush current. If the ICP (P7303) is damaged, no buttons or LEDs of the unit will light and nothing will be displayed when the POWER switch is set to ON. The P7303 is mounted on the SRVB Assy (see the figure below). Whether the Pxxxx is damaged or not can be confirmed by a conduction check.

Control panel Section

Main unit

50P flexible cable

LCDB Assy

SRVB Assy

DDCB Assy

CN2802

CN2004

CN7302

P7303

CN7301

A

2 3 4

B

C

D

E

F

6

1

2 3 4

CDJ-900NXS

5

Power requirements....................... AC 110 V to 240 V, 50 Hz/60 Hz

Power consumption..................................................................33 W

Power consumption (standby) ................................................0.4 W

Main unit weight.......................................................... 4.3 kg (9.5 lb)

Max. dimensions....... 320 mm (W) × 105.5 mm (H) × 401.8 mm (D)

(12.6 in. (W) × 4.2 in. (H) × 15.8 in. (D)) Tolerable operating temperature

...............................................+5 °C to +35 °C (+41 °F to +95 °F)

Tolerable operating humidity............5 % to 85 % (no condensation)

Analog audio output (AUDIO OUT L/R)

Output terminals ..........................................................RCA terminal

Output Level .......................................................... 2.0 Vrms (1 kHz)

Frequency response................................................. 4 Hz to 20 kHz

S/N ratio.................................................................................115 dB

Total harmonic distortion .....................................................0.003 %

Digital audio output (DIGITAL OUT)

Output terminals ..........................................................RCA terminal

Output type..................................................Coaxial digital (S/PDIF)

Output level.............................................................. 0.5 Vp-p (75 Ω)

Output format................................................. 44.1 kHz, 24 bit/16 bit

USB downstream section (USB)

Port........................................................................................ Type A

Power supply..........................................................5 V/2.1 A or less

USB upstream section (USB)

Port........................................................................................ Type B

LAN (PRO DJ LINK)

Rating ........................................................................... 100Base-TX

Control output (CONTROL)

Port..................................................................................... Mini-jack

Main display

Display type...............Active matrix TFT liquid crystal display (LCD)

Supported languages ................................................. 18 languages

• CD-ROM (containing rekordbox (Mac/Windows), the driver software and the operating instructions. The rekordbox (Mac/Windows) license key is attached to the CD-ROM.) (DXX2739)

• Power cord (UXJCB: ADG7022) (SYXJ8: ADG1154) (FLXJ: ADG1154, ADG7097) (AXJ5: ADG7079) (KXJ5: ADG7113)

• Audio cable (XDE3045)

• LAN cable (DDE1141)

• Disc force eject pin (mounted on bottom of product) (DEX1023)

• Read Before Use (Important)/Quick Start Guide (UXJCB: DRH1228) (SYXJ8: DRH1229) (FLXJ: DRH1230) (AXJ5: DRH1231) (KXJ5: DRH1232)

Accessories

2. SPECIFICATIONS

6 7 8

A

B

C

D

E

F

CDJ-900NXS

5

6 7 8

7

1

Items to be checked after servicing

Distortion

Noise

Volume too low

Volume too high

Volume fluctuating

Sound interrupted

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

No. Procedure

Item to be checked regarding audio

Check points

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

1 Confirm the firmware version on Service mode. The version of the firmware must be latest.

Update firmware to the latest one, if it is not the latest.

2 Confirm whether the customer complain has been solved.

If the customer complain occurs with the specific disc, use it for the operation check.

The customer complain must not be reappeared. Audio and operations must be normal.

3 Playback a disc. (track search) Audio, Search and operations must be normal.

5 Check output signals while the Jog dial or TEMPO slider is being

operated.

Audio and operations must be normal.

6 Check the keys on the unit. Check whether a product can be operated properly by buttons

on the product.

7 Check the LCD display.

Check that there is no dirt or dust trapped inside the LCD display.

Audio, Search and operations must be normal.

8

Check the appearance of the product.

No scratches or dirt on its appearance after receiving it for service.

4 Check the connection of each interface.

Playback data contained in the device connected to USB A.

The PC must be linked.

USB B.

The PC must be linked.

LINK.

Lubricants and Glues List

Name Part No. Remarks

Jigs List

Jig Name Part No. Purpose of use / Remarks

CD test disc STD-905 Drive self-diagnosis

iPod cable GGP1201 For use in determining a cause of charging problem for an iPad

DDE1142 (accessory for the CDJ-2000NXS) registered as a jig * CDJ-900NXS can charge iPad using the cable attached to iPad.

Position to be cleaned Name Remarks

Pickup lens

Cleaning liquied

Refer to "9.5 SLOTIN MECHA SECTION".

Part No.

GEM1004

Cleaning paper GED-008

Lubricating oil GYA1001

Refer to "9.4 JOG DIAL SECTION", "9.5 SLOTIN MECHA SECTION".

Lubricating oil GEM1034 Refer to "9.4 JOG DIAL SECTION".

Dyfree GEM1036 Refer to "9.5 SLOTIN MECHA SECTION".

Cleaning

Before shipping out the product, be sure to clean the following positions by using the prescribed cleaning tools.

2 3 4

3. BASIC ITEMS FOR SERVICE

3.1 CHECK POINTS AFTER SERVICING

A

B

C

3.2 JIGS LIST

D

E

F

8

1

CDJ-900NXS

2 3 4

5

1..MAIN ASSY DWX3500

NSP 1..LCDA ASSY DWM2515

2..LCDB ASSY DWX3516

2..DDCB ASSY DWX3517

NSP 1..SRVA ASSY DWM2516

2..SRVB ASSY DWX3519

2..JINT ASSY DWX3520

NSP 1..PNLA ASSY DWM2517

2..USBB ASSY DWX3518

2..PNLB ASSY DWX3522

2..KSWB ASSY DWX3523

2..SLDB ASSY DWX3526

2..PSWB ASSY DWX3527

NSP 1..JFLA ASSY DWM2518

2..SLMB ASSY DWX3528

2..ACIN ASSY DWX3529

2..JFLB ASSY DWX3530

2..JOGB ASSY DWX3531

2..JACB ASSY DWX3532

> 1..POWER SUPPLY ASSY DWR1463

NSP SLOTIN MECHA ASSY DXA2206 TM ASSY-S DXX2616

Mark No. Description Part No. Mark No. Description Part No.

LIST OF ASSEMBLIES

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

-

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

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

C

SLMB ASSY

A

SRVB ASSY

D

JACB ASSY

E

MAIN ASSY

F

USBB ASSY

H

LCDB ASSY

K

PSWB ASSY

G

DDCB

ASSY

P

ACIN ASSY

B

JINT ASSY

J

KSWB ASSY

N

JFLB ASSY

M

JOGB ASSY

POWER

SUPPLY

ASSY

SLOTIN MECHA ASSY

• Bottom view

O

SLDB

ASSY

L

TM ASSY-S

PNLB ASSY

I

3.3 PCB LOCATIONS

6 7 8

A

B

C

D

E

F

5

CDJ-900NXS

6 7 8

9

1

DD (D

G

LCDB ASSY (DWX3516)

H

H H

1/2, 2/2

SLM (DW

O

POWER SUPPLY ASSY (DWR1463)

!

P

ACIN ASSY (DWX3529)

I

PNLB ASSY (DWX3522)

J

KSWB ASSY (DWX3523)

N

JFLB ASSY (DWX3530)

L

SLDB ASSY (DWX3526)

K

PSWB ASSY (DWX3527)

M

JOGB ASSY (DWX3531)

!

GNDD

JOG_SW

GNDSD

GNDD

STBY_CTRL_IN

+12V_SWITCHED_MAIN

+12V_STBY10mA

B2P3-VH

1

CKS4428-A

1

2

CKS1072-A

JOG_SW1NC2GNDD

3

CKS6536-A

ZIF

1NC2

GND3VGL4VCC

5

VGH

6NC7V18V29

V310V411V512V613V714V815V9

16

V10

17NC18NC19

DITH

20VCOM

21

AVDD22AGND

23

GND

24

UPDN

25

VCC

26

SHLR

27

STBYB

28

RSTB29MODE

30

VSD31HSD

32DE33

DCLK

34B735B636B537B438B339

B2

40B141B042G743G644G545G446G3

47G248G149G050R751R652R553R454

R3

55R256R157R058

VCC

59

AVDD60AGND

VKN1416-A

1

V+12

2

V+3R3

3

GND4KEY2

5

ENC_2

6

KEY1

7

ENC_1

8

BLERR

9

ENC_SW10BLEN11GND

12

V+3R3E

VKN1419-A

1

V+5R2

2

GND

3

V+5R2

4

GND

5

PNL_RST

6

PNL_CNVSS

7

USB_STOP

8

LCDRST

9

USB_LED

10

LCDSTB

11

PNL_TXD

12

EUP_CON

13

PNL_RXD

14

PNL_BUSY15PNL_SCK

VKN1272-A

V+12

1

V+3R3

2

GND

3

KEY2

4

ENC_2

5

KEY1

6

ENC_1

7

BLERR

8

ENC_SW

9

BLEN

10

GND

11

V+3R3E

12

VKN1275-A

V+5R2

1

GND

2

V+5R2

3

GND

4

PNL_RST

5

PNL_CNVSS

6

USB_STOP

7

LCDRST

8

USB_LED

9

LCDSTB

10

PNL_TXD

11

EUP_CON

12

PNL_RXD

13

PNL_BUSY

14

PNL_SCK

15

VKN1 853-A

JOG1

1

JOG2

2

JOG_SW

3

J_SCLK

4

J_DSO5J_LAT

6

J_BK

7

V+3R3

8

GND

9

V+12

10

52151-0710

PLAY

1

CUE

2

PLAYL

3

CUEL

4

KEY0

5

GND

6

V+5R2

7

52147-0310

PWR_SW

1

GND

2

GND

3

51048-0300

PWR_SW

1

GND

2

GND

3

51048-0400

ADIN

1

ADCT

2

GNDS

3

V+3R3E

4

51048-0700

PLAY

1

CUE

2

PLAYL

3

CUEL

4

KEY0

5

GND

6

V+5R2

7

VKN1241-A

V+12

1

GND

2

V+3R3

3

J_BK

4

J_LAT5J_DSO

6

J_SCLK

7

JOG_SW

8

JOG2

9

JOG1

10

51048-0400

ADIN

1

ADCT

2

GNDS

3

V+3R3E

4

DKN1599-A

B6B-XH-A

12345

6

VKN 12

CN9101

DKP3943-A

LIVE

1

NEUTRAL

2

DKP3945-A

DKP3953-A

GND

1

B2

2

B3

3

B4

4

GND

5

B5

6

B6

7

B7

8

GND

9

G2

10

G3

11

G4

12

GND

13

G5

14

G6

15

G7

16

GND

17

R2

18

R3

19

R4

20

GND

21

R5

22

R6

23

R7

24

GND

25

DCLK

26

GND

27

DE

28

GND

29

DIMME

30

GND

31

PNL_R

32

PNL_R

33

PNL_TX

34

PNL_B

35

PNL_C

36

GND

37

PNL_S

38

GND

39

USB_L

40

USB_S

41

EUP_C

42

GND

43

V+12EU

44

GND

45

V+12

46

V+12

47

GND

48

V+3R3

49

GND

50

DKP3953-A

GND

1

V+3R3

2

GND

3

V+12

4

V+12

5

GND

6

V+12EUP

7

GND

8

EUP_CONT

9

USB_STOP

10

USB_LED

11

GND

12

PNL_SCK

13

GND

14

PNL_CNVSS

15

PNL_BUSY

16

PNL_TXD

17

PNL_RXD

18

PNL_RST

19

GND

20

DIMMER

21

GND

22

DE

23

GND

24

DCLK

25

GND

26

R7

27

R6

28

R5

29

GND

30

R4

31

R3

32

R2

33

GND

34

G7

35

G6

36

G5

37

GND

38

G4

39

G3

40

G2

41

GND

42

B7

43

B6

44

B5

45

GND

46

B4

47

B3

48

B2

49

GND

50

51048-0400

JOG2

1

JOG1

2

V+3R3

3

GNDD

4

52151-0410

JOG2

1

JOG1

2

V+3R3

3

GNDD

4

NEUTRAL

LIVE

TFT-LCD MODULE (CWX4352-)

SHEET SW (DSX1078-)

DDD1651

FFC(SAME FACE)

L=43mm

L=43mm FFC(SAME FACE)

DDD1650

L=110mm FFC(SAME FACE)

DDD1652

PARALLEL JUMPER

L=100mm

D20PDY0310E

PARALLEL JUMPER

L=100mm

D20PDD0410E

L=95mm

JOG FL

DEL1058-A

A

K

PARALLEL JUMPER

L=200mm

D20PDY0720E

V9201

DKP3947

JP8002

JP8001

JP8003

JP9202 D20PYY0405E L=50mm PARALLEL JUMPER

FFC(SAME FACE)

L=120mm

DDD1645

*VERTICAL

*VERTICA

L=120mm

DKP3943-

Part Number

ADG7113-

Part Number

ADG1154-

ADG7022-/UXJCB

/KXJ5 /AXJ5

/SYXJ8 /FLXJ

DESTINATION

ADG1154-

ADG7079-

(taiwan) ADG7097-

(2Pin)

AC POWER CORD AC INLET

Polarity

Polarized Non-Polarized

Polarized

Use "megane" type

Polarity

*HORIZONTA

*HORIZ

*HORIZONTAL

*VERTICAL

*HORIZONTAL

*VERTICAL

*HORIZONTAL

*VERTICAL

*HORIZONTAL

*VERTICAL

3

CRIMP CONNECTOR

CHASSIS GND

DDX1286-A L=280mm EARTH LEAD UNIT

GNDS

Board in Jumper

CN 1

CN 2003

CN 9203

CN 2001

CN 2601

CN 2602

CN8001

CN8002

CN8004

CN8501

CN8801

JH8005

JH8003

JH8004

CN 9201

JH8701

CN 7302

CN 2

CN 9

JP9101

CN 28 02

CN 2004

JH9202

CN 9301

NEUTRAL

LIVE

BackLight

AC POWER CODE

NEUTRAL

LIVE

NEUTRAL(BLUE)

LIVE(BROWN)

2core glasses type

/UXJCB Polarized OTHERS Non-polarized

Packing with product

-

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 impor tance of the safety factor of the part.

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

-

: The power supply is shown with the marked box.

2 3 4

4. BLOCK DIAGRAM

4.1 OVERALL WIRING DIAGRAM

A

B

C

D

E

F

10

1

2 3 4

CDJ-900NXS

D

JACB ASSY (DWX3532)

B

JINT ASSY (DWX3520)

DDCB ASSY (DWX3517)

G

G G

1/2, 2/2

E

E E

1/6- 6/6

MAIN ASSY (DWX3500)

SRVB ASSY (DWX3519)

A

A A

1/2, 2/2

C

SLMB ASSY (DWX3528)

SSY

529)

F

USBB ASSY (DWX3518)

GNDSD

GNDD

STBY_CTRL_IN

+12V_SWITCHED_MAIN

+12V_STBY10mA

DKB1114-A

1

234

5

DKB1089-A

2

1

DKB1106-A

123

4

RT1

RT2

1

2

3

4

DKN1288-A

1

ST2-2ST2+3ST1+4ST1-

12345

6

789

101112

VKN1273-A

GNDA

1

A_ROUT

2

GNDA3A_LOUT4MUTE5CONT16V+5DAC

7

CONT28SPDIF9GNDD

10

V+1211GNDD12V-12

13

NM

CN502

1

V+3R3_CPU

2

V+3R3_CPU

3

GNDD

4

GNDD

5

REST_ER

6

CPU_TRST

7

CPU_TDI

8

CPU_TMS

9

CPU_TCK

10

CPU_TDO

11

CPU_MPMD

12

CPU_AUDSYNC

13

CPU_AUDATA3

14

CPU_AUDATA1

15

CPU_AUDATA0

16

CPU_EMU_BRK

17

CPU_RST

18

GNDD

19

DSP_TMS

20

DSP_TDI

21

DSP_TDO

22

DSP_TCK

23

DSP_EMU0

24

DSP_TRST

VKN1374-A

GND

1

USB_DP_A

2

GND

3

USB_DN_A

4

GND

5

VKN1419-A

GND

1

USB_DN_B

2

USB_DP_B

3

GND

4

V_BUS_B

5

GND

6

HSSW_PWREN7HSSW_PWRFL

8

GND

9

V+1210V+1211V+12

12

GND13GND14GND

15

VKN2050-A

1

ATA_RESET2GND3ATA_D7

4

ATA_D8

5

ATA_D6

6

ATA_D97ATA_D58ATA_D109ATA_D410ATA_D1111ATA_D3

12

ATA_D1213ATA_D214ATA_D1315ATA_D116ATA_D1417ATA_D018ATA_D15

19

GND

20

GND

21

ATA_DREQ

22

GND23ATA_WR24GND25ATA_DIOR26GND27ATA_RDY28GND29ATA_DACK

30

GND

31

ATA_INT

32

GND33ATA_A1

34

GND35ATA_A0

36

ATA_A237GND

38

ATA_CS039ATA_CS140GND

RKN1054-A

V-121GNDD2V+123GNDD

4

SPDIF

5

CONT2

6

V+5_DAC

7

CONT1

8

MUTE

9

A_LOUT

10

GNDA

11

A_ROUT

12

GNDA

13

AKM1283-A

1

GNDD2GNDD

3

V+3R3

4

V+3R3

5

GNDD

6

V+5

7

GNDD

8

GNDD

9

XEUP_CONT

10

V+12

11

V+12

12

V+12_EUP

VKN1 818 -A

1

GND

2

ATA_CS13ATA_CS0

4

GND

5

ATA_A26ATA_A0

7

GND

8

ATA_A1

9

GND

10

ATA_INT

11

GND

12

ATA_DACK

13

GND

14

ATA_RDY

15

GND

16

ATA_DIOR

17

GND

18

ATA_WR

19

GND

20

ATA_DREQ

21

GND

22

GND

23

ATA_D15

24

ATA_D0

25

ATA_D14

26

ATA_D1

27

ATA_D13

28

ATA_D2

29

ATA_D12

30

ATA_D3

31

ATA_D11

32

ATA_D4

33

ATA_D10

34

ATA_D535ATA_D936ATA_D637ATA_D8

38

ATA_D7

39

GND

40

ATA_RESET

AKM1298-A

1

V+12_EUP

2

V+123V+12

4

XEUP_CONT

5

GNDD6GNDD

7

V+5

8

GNDD

9

V+3R310V+3R3

11

GNDD12GNDD

DKN1599-A

GNDSD

1

GNDD

2

STBY CTRL IN

3

+12V_SWITCHED_MAIN

4

+12V_SWITCHED_MAIN

5

+12V_STBY10mA

6

5

6

RKN1062-A

LO-

1

LO+

2

GNDSD

3

LPS1

4

LPS25INSW

6W7V8

U

9

GNDSD

10

HW-

11

HW+

12

HV-13HV+14HU-15HU+16V+5

17

ST2-18ST2+

19

ST1+

20

ST1-

21

DKN1445-A

1

GNDD2A_S23VREF14V+5A5A_S16A_D7A_C87/x69RF

10

A_B11A_A12VR6513VRCOM

14

VR78

15

GNDD16LD7817PD18LD6519GNDD20NC21T+22T-23F+24F-

123456789

10

11121314151617181920212223

24

RKN1062-A

LO-

1

LO+

2

GNDSD

3

LPS14LPS25INSW

6W7V8

U

9

GNDSD

10

HW-11HW+12HV-13HV+14HU-15HU+16V+5

17

ST2-

18

ST2+

19

ST1+20ST1-

21

VKN1374-A

1

LPS2

2

LPS1

3

GNDSD

4

LO+5LO-

VKN 1265-A

LPS21LPS1

2

GNDS

3

LO+4LO-

5

CKS4808-A

1

GND2GND3GND

4

V+125V+126V+127GND

8

HSSW_PWRFL

9

HSSW_PWREN

10

GND11V_BUS_B12GND

13

USB_DP_B

14

USB_DN_B15GND

DKN1237-A

1

VBUS

2D-3D+4

GND

RT1

RT2

VKN1265-A

GNDUSB

1

USB_DP_A2GNDD3USB_DN_A

4

GNDUSB

5

KM200IB4

GND

1

GND

2

V+5USB

3

4

V+5USB

DKN1450-A

1

INSW2W3V4U5GNDSD6HW-

7

HW+8HV-

9

HV+

10

HU-11HU+12V+5

DKP3953-A

GND

1

B2

2

B3

3

B4

4

GND

5

B5

6

B6

7

B7

8

GND

9

G2

10

G3

11

G4

12

GND

13

G5

14

G6

15

G7

16

GND

17

R2

18

R3

19

R4

20

GND

21

R5

22

R6

23

R7

24

GND

25

DCLK

26

GND

27

DE

28

GND

29

DIMMER

30

GND

31

PNL_RST

32

PNL_RXD

33

PNL_TXD

34

PNL_BUSY

35

PNL_CNVSS

36

GND

37

PNL_SCK

38

GND

39

USB_LED

40

USB_STOP

41

EUP_CONT

42

GND

43

V+12EUP

44

GND

45

V+12

46

V+12

47

GND

48

V+3R3

49

GND

50

DKN1407-A

GND

1

V+3R3

2

GND

3

V+12

4

V+12

5

GND

6

V+12EUP

7

GND

8

EUP_CONT

9

USB_STOP

10

USB_LED

11

GND

12

PNL_SCK

13

GND

14

PNL_CNVSS

15

PNL_BUSY

16

PNL_TXD

17

PNL_RXD

18

PNL_RST

19

GND

20

DIMMER

21

GND

22

DE

23

GND

24

DCLK

25

GND

26

R7

27

R6

28

R5

29

GND

30

R4

31

R3

32

R2

33

GND

34

G7

35

G6

36

G5

37

GND

38

G4

39

G3

40

G2

41

GND

42

B7

43

B6

44

B5

45

GND

46

B4

47

B3

48

B2

49

GND

50

DKP3953-A

GND

1

B2

2

B3

3

B4

4

GND

5

B5

6

B6

7

B7

8

GND

9

G2

10

G3

11

G4

12

GND

13

G5

14

G6

15

G7

16

GND

17

R2

18

R3

19

R4

20

GND

21

R5

22

R6

23

R7

24

GND

25

DCLK

26

GND

27

DE

28

GND

29

DIMMER

30

GND

31

PNL_RST

32

PNL_RXD

33

PNL_TXD

34

PNL_BUSY

35

PNL_CNVSS

36

GND

37

PNL_SCK

38

GND

39

USB_LED

40

USB_STOP

41

EUP_CONT

42

GND

43

V+12EUP

44

GND

45

V+12

46

V+12

47

GND

48

V+3R3

49

GND

50

DKP3953-A

GND

1

V+3R3

2

GND

3

V+12

4

V+12

5

GND

6

V+12EUP

7

GND

8

EUP_CONT

9

USB_STOP

10

USB_LED

11

GND

12

PNL_SCK

13

GND

14

PNL_CNVSS

15

PNL_BUSY

16

PNL_TXD

17

PNL_RXD

18

PNL_RST

19

GND

20

DIMMER

21

GND

22

DE

23

GND

24

DCLK

25

GND

26

R7

27

R6

28

R5

29

GND

30

R4

31

R3

32

R2

33

GND

34

G7

35

G6

36

G5

37

GND

38

G4

39

G3

40

G2

41

GND

42

B7

43

B6

44

B5

45

GND

46

B4

47

B3

48

B2

49

GND

50

KP200IB4L

GNDUSB

1

GNDUSB

2

V+5USB

3

V+5USB

4

VKB1243-A

231

L

DIGITAL OUT

R

AUDIO OUT CONTROL OUT

USB CONNECTOR (B TYPE)

USB CONNECTOR (A TYPE)

*VERTICAL

*RIGHT ANGLE

FOR DEBUG (DSP&CPU)

ETHERNET CONNECTOR

VKN2023-A

TM.ASS'Y 09SD

09SD PICK UP ASS'Y (OWY8177-)

LOADING MOTOR

SLOTIN MECHA ASS'Y DXA2206-

LO-

ZWNN1007G28-9-06A L=60mm WHITE SINGLE WIRELO+

LO+

STEPPING MOTOR SK (DXM1201-)

LO-

CHASSIS GND

FRAME GND

FFC(SAME FACE)

L=55mm

DDD1646

FFC(SAME FACE)

DDD1654

FFC(REVERSE)

L=75mm

DDD1655

DDD1648 L=44mm

FFC(SAME FACE)

DDD1649

L=30mm

FFC(REVERSE)

DDD1484 L=78mm FFC(SAME FACE)

L=40mm

SPINDLE MOTOR (DXM1197-)

L=112mm

DDD1653

FPC(SAME FACE)

Soldered

BtoB

L=159mm

DKP3946

ZWNN1007G28-8-06A L=60mm GRAY SINGLE WIRE

DC MOTOR (DXM1384-)

DXX2616-

FFC(SAME FACE)

L=35mm

DDD1644

FFC(SAME FACE)

L=120mm

DDD1645

*RIGHT ANGLE

*VERTICAL

*RIGHT ANGLE

Only Proto or TP

*VERTICAL

*HORIZONTAL

*VERTICAL

*HORIZONTAL

*VERTICAL

*HORIZONTAL

CV- VTM091/XW51 (Serviece Part DXX2616-)

NNECTOR

CRIMP CONNECTOR

DE007VE0

L=70mm

EARTH LEAD UNIT

JA9402

JA9403

JA2901

CN 6004

CN 9401

CN 703

CN 707

CN 701

CN 901

CN 705

CN 7005

CN 7301

CN 7302

CN 7009

CN 7001

CN 6001

CN 6002

CN 9001

CN 2701

JA2701

CN 2902

CN 2702

CN 6003

CN 706

CN 28 01

CN 28 02

CN 2004

CN 2901

JA9401

JA702

5

6 7 8

CDJ-900NXS

6 7 8

A

B

C

D

E

F

11

1

CPU : CLK: 1

ATAPI

PICKUP ASSY

JA702

LAN

Connector

IC30

DSP

CLK:16.9344

Core CLK:389.4

LCD MODULE

DDR2 I/F

MAIN System Bus2

16

IC7006

SODC

CLK:16.934MHz

IC7004

128kB

FLASH

8

112109111

IC7002

FEP

15 19 29

175

176

IC7001

6ch

Servo Driver

119 120

62

46

5

4

RFENV

FE

TE

TEDRV

FEDRV

LOAD

OEIC

CN7001

MM

LOADING

MOTOR

M

STEPPING

MOTOR

CN2

POWER

CN2001

Serial (Syn

SPINDLE

MOTOR

IC302

32MB

SDRAM

Bus CLK

129.8304MHz

IC3

8

MB

FLASH

16

IC1

128MB

DDR2

Bus CLK 167MHz 167MHz

16 16

CS0

CS6

U-HPI

IC704

ETHER PHY

CLK:50MHz

RMII ,

MDC

CD

Universal

Host- Port

Interface

IC2

128MB

DDR2

Bus CLK

CN6004

CN6002

CN9001

LPS2

LPS1

MAIN System Bus1

Host I/F

DCLK

DCLK:32MHz

IC5

BUF

33

4

2

6

INSW

CN6003

CN6001

CN7009

CN7302

XEUP_CONT

CN705

CN7005

4

9

3

R(7:2),G(7:2),B(7:2),DE

CN2802

CN706

CN2801

CN2004

IC2801- IC2803

BUF

42

9

42

9

25

26

25

26

IC10

MAIN CPU

CLK:33.333333MHz

Core CLK: 500MHz

AA4

C

A

SRVB ASSY

E

MAIN ASSY

O

POWER SUPPLY ASSY

SLOTIN MECHA ASSY

TM ASSY-S

B

JINT ASSY

C

SLMB ASSY

4.2 SIGNAL BLOCK DIAGRAM

A

B

C

2 3 4

D

E

F

12

1

CDJ-900NXS

2 3 4

5

CPU : MAIN->PANEL CLK: 1MHz

OPAMP

Control

Lch

Rch

S/PDIF (Digital Audio) (fs=44.1kHz const.)

LRCLK

DATA

BCLK

CN901

IC901

DAC

CLK:16.9344MHz

IC301

DSP

CLK:16.9344MHz

Core CLK:389.4912MHz

K3

T3

K4 1

2

3

D8

16

IC902

12

10

5

1

Analog Audio

CN9401

4

2

9

Serial (Syncronus)

LED

KEY

JOG_SW

JOG2

JOG1

PWR_SW

JH8005

CN8801

PC9301

JH9202

CN9301

1

22

1

VR8001

TOUCH /

CN2602

CN8002

S2612

Rotary Search

IC14

AUTHENTICATION CHIP

Vinyl

I2C

JH8003

JH8701

JH8004

CN8501

Serial

CN9203

SHEET SW

CN8004

CN9201

312

8109

LED

KEY

IC8003

PANEL CPU

(Within FLASH)

CLK:15.975MHz

R

L

Digital Audio

Control

11

8

JOG FL

sal

JA9401 Control out

JA9402 Analog out

JA9403 Digital out

VR8701 TEMPO

CN2601

CN8001

JA2901

USB - A Jack

3

USB Full/High Speed I/F

JA2701

USB - B Jack

CN703

CN2902

7

5

USB Full Speed I/F

12 12

R(7:2),G(7:2),B(7:2),DE

706

2801- IC2803

BUF

29

262527

8

CN2702

CN2901

IC2702

Current Detect

V+5USB

CN707

CN2701

11

5

V_BUS_B

SPI

D

JACB ASSY

F

USBB ASSY

G

DDCB ASSY

H

LCDB ASSY

I

PNLB ASSY

J

KSWB ASSY

K

PSWB ASSY

L

SLDB ASSY

M

JOGB ASSY

N

JFLB ASSY

6 7 8

A

B

C

D

E

5

6 7 8

CDJ-900NXS

F

13

1

Power cord

PickUp

Spindle

Motor

Stepping

Motor

Loading

Motor

IC7002

1327910

AC

IC2701

12V→5.14V

IC7302

12V→3.36V

6

4

5

6

4

5

V+12_EUP

CN7302

V+12

V+12S

P

1210

11 6 4 3

CN705

CN7301

V+12_EUP

V+3R3

1

7

3

13

7

11

CN501CN9401

46

44

47

49

CN706 CN2004

IC7304

7.6V→5V

IC9401

12V→-12V

V+12_EUP

IC7005

5V→1.5V

IC7003

5V→3.3V

3.3V→1.65V

5V→2.2V

V+5A

V+3D

VREF1

VHALF

V+1R5D

P7303

P7301

P

P9401

P

P9402

V+12S

V+5_DAC

V+12

CN1

CN2

IC7303

12V→7.64V

V+5

V+12_EUP

V+5

V+12

V+3R3

V+12

CN7001

V+3A

CN7009

V+5

V+5_DAC

IC9403

12V→5V

V-12

V+3R3

V+12

V+5A

V+5

V+3R3

V+12

IC2702

Current

Detect

5

7

4

2

34

C

N9101

JP9101

P

V+7R6S

Q7301

FETSW

P7302

P

8

CN6004

CN6002

CN6001

CN9001

IC705

12V→1.247V

5

7

4

2

CN2801 CN2802

46

44

47

49

11

10

12

CN707

5

6

4

CN2701

3

4

CN2702

V+5_USB

IC10

MAIN UCOM

V+12_EUP

V+3R3

V+12

CN6003

17

12

IC701

3.3V→1.8V

IC1/IC2

1Gbit

DDR

V+1R2

V+1R8

LO+/ -

ST1+/ -

ST2+/ -

HW+/ HV+/ HU+/ -

VREF1

V+5A

T+/ -

F+/ -

O

POWER SUPPLY ASSY

P

ACIN ASSY

TM ASSY-S

B

JINT ASSY

C

SLMB ASSY

A

SRVB ASSY

H

LCDB

D

JACB ASSY

E

MAIN ASSY

G

DDCB ASSY

2 3 4

4.3 POWER SUPPLY BLOCK DIAGRAM

A

B

C

D

E

F

14

CDJ-900NXS

1

2 3 4

5

Notes

TFT LCD

CN2004

CN2602

CN8801

3

JH9202

IC2602

12V→3.3V

IC9203

12V→27V

IC9201

12V→3.3V

IC9202

12V→AC2.7V

21

V+3R3FL

V+27

VFDP2R7

V+9R6

1

IC2002

5.2V→9.6V

IC2001

5.2V

→9.6V

→18V

→-6V

CN2003

CN2001

2

JA2901

USB -A

Connector

ANODE

CATHODE

V+12

CN2601 CN8001

V+3R3E

V+3R3

V+12

V+5R2

7

1

JH8004

5

7

4

2

12

1

2

1

3

VV+3R 3E

V+3R

3

V+12

P

P9201

V+12

CN8004

10

3

1

CN9201

DCDC

Converter

Regulator

DCAC

Converter

P

Protector

15

Connector&Pin No.

3

4

CN2702

CN2901

V+5_USB

3

4

IC2601

12V→5.2V

12

1

2

CN8002

1

3

V+5R2

V+3R3E

V+5R 2

4

JH8003

7

CN8501

4

JH8701

CN9301

V+3R3

IC8003

Panel UCOM

JH8005

1

8

V+3R3E

V+3R3

V+5R2

V+18

V-6

V+3R3LCD

59

5

3

4

25

58

V+3R3LCD

V+9R6

H

LCDB ASSY

F

USBB ASSY

K

PSWB ASSY

I

PNLB ASSY

J

KSWB ASSY

L

SLDB ASSY

M

JOGB ASSY

N

JFLB ASSY

6 7 8

A

B

C

D

E

F

5

6 7 8

CDJ-900NXS

15

1

Power on

Pin G4 of MAIN CPU (IC10) cancels reset at H.

Program transfer from FLASH to SDRAM

Canceling DSP reset from pin A4 of MAIN CPU. Pin G3 of DSP (IC301) becomes "H".

Canceling ETHER PHY reset from pin B14 of MAIN CPU. Pin 15 of ETHER PHY (IC704) becomes "H".

Canceling ATAPI reset from pin M2 of MAIN CPU. Pin 173 of SODC (IC7006) becomes "H".

Program transfer to DSP

Register setting of ETHER PHY

Initialization of the built-in peripherals

Initialization of the SDRAM

Initialization of the DSP

Initialization of the DAC

Initialization of the peripheral device

Initialization of the MAIN CPU

Pin 12 of PANEL CPU (IC8003) cancels reset at H.

Pin 45 of SODC (IC7006) cancels reset at H.

Power on

Initialization of the JOG_FL

Initialization of the PANEL CPU

Initialization of the CDC

Power on

Initialization of the

loading mechanism

Initialization of the ATAPI

LED initial lighting

Canceling reset

Apple

authentication

chip

Communication between MAIN CPU and SRVO

Initialization of the SODC

The insertion of the disk is possible.

Built-in peripherals

• USB_A

• USB_B

• ETH_MAC

• ATAPI

• SERIAL

• SSI

Communication between MAIN CPU and PANEL CPU

MAIN CPU PANEL CPU SRVO

POWER ON SEQUENCE

Opening screen display

Device select screen

5. DIAGNOSIS

5.1 SEQUENCE

A

2 3 4

B

C

D

E

F

16

1

2 3 4

CDJ-900NXS

Power on

Initialization of the loading mechanism

SETUP SEQUENCE

Loading of a disc

Turn on the LD on to check for the presence of a disc.

Focus search is performed to acquire S-shaped signal data.

Stepper moving to a focusing position

Without a disc, an unloading process starts.

Offset canceling

Offset canceling for the 2nd time

LD on for the 2nd time

Spin-up (CAV2000 rpm)

LD off

TBAL adjustment

Focus position adjustment

Focua gain adjustment

Acquisition of addresses

Tracking gain adjustment

TOC (control data) reading

Searching for the 1st piece of

music (SPDL acceleration starts)

TEPP adjustment

Tr drive offset adjustment

Coarse adjustment of focus position

Focus in

OFTR slice level adjustment

Measurement of

eccentricity amount

T close

5

6 7 8

A

B

C

D

E

F

CDJ-900NXS

5

6 7 8

17

1

Measure the voltage at the probe pad on the SRVB Assy (see the photo below), using a tester. ∗ To check lighting of each LD, follow the procedure indicated in "[7] Checking the servo operations of the drive unit" in "6.1 SERVICE MODE." ∗ Note that the LD may be degraded if the probes of a tester are applied to or pulled away from the probe pad with the LD ON.

Check method

Directly measure the resistance value of the actuator, using a tester. * Before measuring, short-circuit the LD short-circuit pads. Note that the LD may be degraded if connection/disconnection of CN7001 is performed with the LD short-circuit pads open.

• Focus side Disconnect* the FFC connected to the CN7001 then measure the resistance value between FFC pins 23 and 24.

• Tracking side Disconnect* the FFC connected to the CN7001 then measure the resistance value between FFC pins 21 and 22.

Check method

1. With the LD OFF, apply the probes of a tester to the reference probe pad (LDI) and V+5A.

2. With the probes kept applied to the above-mentioned pads, turn the LD ON to measure the voltage between them.

3. After measurement, turn the LD OFF (ALL OFF) then pull the probes away.

4. Calculate the current value by dividing the measured voltage value by the resistance value mentioned below. (R7008 = 22 ohms)

Procedures

If the calculated current value exceeds the maximum value, the LD has been degraded

Failure judgment:

A value out of the range of the specifications is judged as failure.

Failure judgment:

Fig.1 SRVB Assy

LD power after passing through the objective lens [mW]

SPEC: CD 0.210 ± 0.03 Check method: Measure the LD power, using an optical power meter. Failure judgment: A value out of the range of the specifications is judged as failure.

Actuator resistance value [ohms]

Specifications on the focus side: 3.7 ±0.55 Specifications on the tracking side: 4.3 ±0.65

LD current [mA]

SPEC: CD TYP65 MAX75

This unit has self-diagnostic functions for the drives. For drive-related malfunctions, first perform the self-diagnostics to check the drives in Service mode. If the results indicate any problem with the drives, check the following items:

CN7001

V+5A

LDI

2 3 4

5.2 FAILURE JUDGEMENT OF THE PICKUP ASSY

A

B

C

D

E

F

18

CDJ-900NXS

1

2 3 4

5

1 ————— ————— Check for the location of a defect in

Service mode.

See the section describing locations of defects in this manual.

6.1 SERVICE MODE

In this section, causes of failure, diagnostics points, and corrective measures can be searched for according to symptoms. Before disassembling this unit, it is recommended to infer a failure point by performing a status check and referring to the error code. For the relationship of each power-supply and signal system, see “4. BLOCK DIAGRAM,” and “10. SCHEMATIC DIAGRAM.” If software of the product is updated before performing diagnostics, check that software updating has been performed properly before proceeding to diagnostics. If software updating has not been performed properly, update the software, following the instructions in [9] Firmware update of “6.1 SERVICE MODE.”

Contents

[0] Prior Confirmation [1] Failure in Startup [2] Display (JOG FL/LED) [3] Operations (Button/Volume/Rotary enncoder / Jog dial) [4] USB (Type A/Type B) [5] LAN [6] ATAPI DRIVE

[7] AUDIO OUT [8] CONTROL [9] DRIVE Assy [10] EUP Mode [11] SERVICE MODE [12] Error Codes

[0] Prior Confirmation

[0-1] Checking in Service Mode

1 Disconnection,

breakage, or loose connection of cables

Cables Check that all the cables are securely

connected. Check that there is no breakage in the cables.

Securely connect the cables. If a cable is broken, replace it.

4.1 OVERALL WIRING DIAGRAM

10. SCHEMATIC DIAGRAM

[0-3] Checking Cables

1 ————— Alarm port on

the MAIN Assy (Fig. 1)

Check the output waveforms from the alarm port.

If an output waveform is judged to be improper, see the section describing locations of defects in this manual.

6.1 SERVICE MODE _[8] Outputs of the Alarm Port

[0-2] Checking the Alarm Port

If “[0-1] Checking in Service Mode” is performed, this check is not required.

Fig. 1

MAIN Assy

Alarm port

Waveform example (at DISC DRIVE ERROR (An ATAPI drive does not work normally))

No. Cause Diagnostics Point Item to be Checked Corrective Action Reference

[1] Failure in Startup

[1-1] No power

1 The SW power

does not function properly.

SRVB Assy Check V+12_EUP. If V+12_EUP (CN7302 pin 6) is not output, the

SW power is defective. Replace it.

—————

No. Cause Diagnostics Point Item to be Checked Corrective Action Reference

The waveform numbers confirmation-point numbers (10.19 WAVEFORMS) described in this section correspond to the numbers on the “10. SCHEMATIC DIAGRAM” and “11. PCB DIAGRAM” . Be sure to check the failure points, as well as check for failure in their peripheral circuits.

6 7 8

5.3 TROUBLESHOOTING

A

B

C

5

6 7 8

CDJ-900NXS

D

E

F

19

1

[2] Display (JOG FL/LED)

[2-1] The JOG FL does not light.

The JOG FL and the LEDs are controlled by the PANEL CPU (IC8003).

[1-2] Indications on the LCD

Check the indications on the LCD. Nothing is displayed on the LCD. (Black screen)

2 The SW power

does not function properly.

PNLB Assy, LCDB Assy

Check V+3R3_PNL.

The regulator IC (IC2602) may be loosely connected with its peripheral devices or a part may be defective. Correct loose connection. If the symptom persists, replace the defective part.

—————

4 Various power

supply ICs do not function properly.

SRVB Assy, MAIN Assy

Check each power-supply IC.

The power IC and its peripheral devices for each power supply may be loosely connected or a part may be defective. Correct loose connection. If the symptom persists, replace the defective part.

—————

3 The EUP control

unit does not function properly.

SRVB Assy Check the EUP_CONT signal.

If the signal of XEUP_CONT (CN7302 pin 3) is L, check the output of the SW power. If V+12 (CN7302 pins 4, 5) is not output, the SW power is defective. Replace it.

—————

1

Power is not supplied properly.

JFLB Assy Check the power-supply voltages (V+3R3,

VFDP2R7_F1, VFDP2R7_F2, and V+27) of the FL (V9201).

Each power-supply may be loosely connected or may be defective. Correct loose connection. If the symptom persists, replace the defective part.

—————

3

Defective JOG FL

————— If the symptom persists after the above

corrections,

Replace the JOG FL. —————

2 Defective

control signal

JFLB Assy Check that the FL control line is properly

connected in the JFLB ASSY.

• J_SCLK

• J_BK

• J_LAT

• J_DSO

Check the connection and correct loose connection. As the JOG FL is controlled by the PANEL CPU, if no signal is output, check the PANEL CPU.

10.19 WAVEFORMS

3 (TP9225)

No. Cause Diagnostics Point Item to be Checked Corrective Action Reference

5 Defective

CPU_RST signal

MAIN Assy Check the CPU_RST signal. If CPU_RST is "L" although the V+3R3_CPU is

normal, the RESET IC (IC11) is defective or the relevant connection is poor. Correct loose connection. If the symptom persists, replace the defective part.

—————

6 Defective

SYS_CLK signal

MAIN Assy Check the SYS_CLK (=33.333333 MHz)

signal.

The X2 or Logic IC (IC9) may be loosely connected with its peripheral devices or a part may be defective. Correct loose connection. If the symptom persists, replace the defective part.

10.19 WAVEFORMS

1 (IC9-pin 7)

No. Cause Diagnostics Point Item to be Checked Corrective Action Reference

1 Power for

backlight is not input properly.

LCDB Assy

Check the connection of the backlight power connector (CN2003) and the mounting status of the peripheral parts of the power-supply circuit for backlighting (IC2002).

Possible causes are poor connection of the backlight power connector (CN2003) and defective power-supply circuit for backlighting. Correct loose connection. If the symptom persists, replace the defective part.

—————

2 Defective

LCD_CLK signal

MAIN Assy Check the LCD_CLK (= approximately

32.0000 MHz) signal.

The X3 may be loosely connected with its peripheral devices or a part may be defective. Correct loose connection. If the symptom persists, replace the defective part.

—————

3

Loose connections between MAIN CPU and LCD module

MAIN Assy, DDCB Assy, LCDB Assy

LCheck the power source and signals to the LCD module (CN2001).

• VAVDD (pin 59), VGL (pin 3), V+3R3LCD (pin 4), VGH (pin 5)

• DCLK (pin 33 = approximately 32 MHz), DE (pin 32), RSTB (pin 28 ="H"), STBYB (pin 27 = "H")

Check the signals described in the left adjacent column at CN706, CN2801, CN2802, and CN2004 to identify a defective part then correct connection or replace the defective part with a new one.

10.19 WAVEFORMS

2 (CN2801-pin 25)

The colors displayed on the LCD are improper.

1

Loose connections between MAIN CPU and LCD module

MAIN Assy, DDCB Assy, LCDB Assy

LCheck the power source and signals to the LCD module (CN2001).

• B7 : B2 (pin 34 : 39), G7 : G2 (pin 42 : 47), R7 : R2 (pin 50 : 55)

Check the signals described in the left adjacent column at the MAIN CPU (IC10), CN706, CN2801, CN2802, and CN2004 to identify a defective part then correct connection or replace the defective part with a new one.

—————

A

2 3 4

B

C

D

E

F

20

CDJ-900NXS

1

2 3 4

5

[2-2] An LED does not light.

1 Defective SW PNLB Assy Check if there is loose connection on the

signal line from the PANEL CPU (IC8003) up to the SW.

If there is no loose connection and if the signal does not become L when the SW is pressed, that SW is defective. Replace it.

—————

2 Defective PANEL

CPU

PNLB Assy If the symptom persists after the above

corrections.

Check the connection of the PANEL CPU (IC8003). If the connection is OK, the port may be damaged. Replace it.

—————

2 Defective PANEL

CPU

PNLB Assy If the symptom persists after the above

corrections.

Check the connection of the PANEL CPU (IC8003). If the connection is OK, the port may be damaged. Replace it.

—————

2 Defective

MAIN CPU

MAIN Assy If the symptom persists after the above

corrections.

The MAIN CPU (IC10) is defective. Replace the MAIN Assy.

—————

1 Defective SW PNLB Assy,

MAIN Assy

Check if there is loose connection on the signal line from the MAIN CPU (IC10) up to the SW.

If there is no loose connection and if the signal does not become L when the SW is pressed, that SW is defective. Replace it.

—————

1 Defective

TEMPOslider

SLDB Assy, PNLB Assy

Check the waveform of signals on the signal line (ADCT, ADIN).

If the voltage on the signal line (ADIN) fluctuates within the range of 0–3.3 V, with 1.65 V at the center, go to Step 2. If it does not, the TEMPO slider (VR8701) is defective. Replace it.

—————

2 Defective PANEL

CPU

PNLB Assy If the symptom persists after the above

corrections.

Check the connection of the PANEL CPU (IC8003). If the connection is OK, the port may be damaged. Replace it.

—————

1 Defective VOL PNLB Assy Check the connections of and waveforms

of signals on the signal line (TCH/RELS).

If the voltage on the signal line (TCH/RELS) fluctuates within the range of 0–3.3 V, go to Step 2. If it does not, the TOUCH/RELEASE (VR8001) are loosely connected or defective. Connect them properly or replace them.

—————

1 Defective LEDs PNLB Assy

Check that soldering at the LED in question is properly made. If it is OK, check that the forward voltage (2.2 - 2.7 V) is present at both ends of the LED.

Correct any defective soldering. If the forward voltage is present, then the LED itself is defective. Replace it.

—————

2 Defective drive

circuit

Transistor in question

Check that the control signal for the LED in question is output from the PANEL CPU (IC8003).

If the LED does not light even if the control signal is output properly, then the transistor is defective. Replace it.

—————

3 Defective PANEL

CPU

PNLB Assy If the symptom persists after the above

corrections.

Check the connection between the PANEL CPU (IC8003) and the LED in question. If the connection is OK, the port may be damaged. Replace it.

—————

[3] Operations (Button / Volume / Rotary encoder / Jog dial)

[3-1] No key functions.

[3-2] Variable volumes not controllable

As operations of all buttons, variable volumes, rotary encoder and Jog dial can be checked in Service mode, it is recommended to check operations of those controls in Service mode before proceeding to the subsequent checks.(For details, refer to 6. SERVICE MODE.)

The USB STOP button does not function. (The signal from the USB STOP button is input to the MAIN CPU.)

No key functions. (except USB STOP button)

TEMPO slider not controllable

VINYL SPEED ADJUST TOUCH/RELEASE control not controllable

No. Cause Diagnostics Point Item to be Checked Corrective Action Reference

2 Defective

RST signal of PA NEL CPU

PNLB Assy Check the RST signal of the PANEL CPU

(IC8003 pin 12).

If Pin 12 of IC8003 is "L" although the V+3R3E is normal, the RESET IC (IC8001) or Q8026 is defective or the relevant connection is poor. Correct connection or replace the defective part with a new one.

—————

3 Defective

CLK signal of PA NEL CPU

PNLB Assy Check the CLK signal of the PANEL CPU

(IC8003 pin 13 = 15.975 MHz).

The X8001 may be loosely connected with its peripheral devices or a part may be defective. Correct loose connection. If the symptom persists, replace the defective part.

10.19 WAVEFORMS

4 (TP8096)

6 7 8

A

B

C

D

5

CDJ-900NXS

6 7 8

E

F

21

1

1 Defective photo

interrupter or PA NEL CPU

JOGB Assy, JFLB Assy, PNLB Assy

Check the waveforms of the signal lines (JOG1/JOG2).

If no waveform can be confirmed, the photo interrupter (PC9301) may be defective. Replace it. If a waveform can be confirmed, the signal line may be loosely connected or the PANEL CPU (IC8003) may be defective. Reconnect the signal line. If the symptom persists, replace it.

10.19 WAVEFORMS

56

(CN9301-pin 2 (JOG1)) (CN9301-pin 1 (JOG2))

2 Defective

encoder plate

JOG Assy Check if the encoder plate has come off

Gear A or is dirty.

If it has come off, adhere it at its original position. If it is dirty, replace it with a new one.

—————

2 Defective

SW ring and Holder/JOG

Jog dial Section Check if there is any foreign object

between the SW ring and Holder/JOG.

Remove any foreign object, if present. —————

Check if the cushions that are adhered to the Holder/JOG and SW ring have worn out.

Replace the SW cushion with a new one. —————

[3-4] Abnormalities regarding the Jog dial

Turning of the Jog dial is not detected

1 Defective

Sheet SW or PA NEL CPU

Sheet SW, JFLB Assy, PNLB Assy

Check the waveform of the signal on the signal line (JOG_SW) when the Jog dial is pressed.

If the signal on the signal line (JOG_SW) is not set to L when the Jog dial is pressed, the Sheet SW may be defective. Replace it. If the signal line is set to L, the signal line may be loosely connected or the PANEL CPU (IC8003) may be defective. Reconnect the signal line. If the symptom persists, replace it.

—————

Pressing on the Jog dial cannot be detected.

1 Defective

JFLB Assy or gears

Jog dial Section Check if the JOG FL of the JFLB has

been shifted upward from the holder.

The JOG FL may interfere with Jog dial A. Replace the JFLB Assy.

—————

There may be any scratches on the 3 gears or some foreign object between the gears.

If there are any scratches, replace the scratched gear with a new one. If there is any foreign object, remove it then replace the gears with new ones. After that, check that the Jog adjustment value is within the reference range, referring to “8.3 JOG DIAL ROTATION LOAD ADJUSTMENT.”

—————

Noise is heard when the Jog dial is turned.

No. Cause Diagnostics Point Item to be Checked Corrective Action Reference

1 Improper adjust-

ment or assembly of the Jog dial

Jog dial Section Check that the load value for the Jog dial

is within the specified range, referring to “Measuring method” in “8.3 JOG DIAL ROTATION LOAD ADJUSTMENT.”

If it is outside the specified range, adjust the position of the Adjust plate to change the load value for the Jog dial, referring to “How to Adjust” in “8.3 JOG DIAL ROTATION LOAD ADJUSTMENT.”

—————

During the above adjustment, if the upper-limit adjustment position of the Adjust plate is reached, oil mayhave been spattered on the Adjust Plate. Replace the washer, gear, and smoother with new ones, then reassemble. After replacement, adjust the position of the Adjust Plate to change the load value for the Jog dial.

—————

The Jog dial turns too freely. (The load value for the Jog dial is outside the specified range.)

No. Cause Diagnostics Point Item to be Checked Corrective Action Reference

1

Loose connections in the signal line or defective SW

LCDB Assy, PNLB Assy

Check the connections of the signal lines for ENC_SW, ENC1, and ENC2. When the SW is pressed, the ENC_SW signal must become L, and when it is turned, the waveforms of the signal lines for ENC1 and ENC2 must change.

The PANEL CPU (IC8003) and SW may be loosely connected or they may be defective. Reconnect them securely. If the symptom persists, replace them.

—————

[3-3] The Rotary encoder does not work.

No response when the Rotary selector is operated

2 Defective PANEL

CPU

PNLB Assy If the symptom persists after the above

corrections.

Check the connection of the PANEL CPU (IC8003). If the connection is OK, the port may be damaged. Replace it.

—————

A

2 3 4

B

C

D

E

F

22

CDJ-900NXS

1

2 3 4

5

1

Loose connections in the communication line.

Between USBB Assy and MAIN Assy

Check the connection of the USB communication line.

If connection is improper, resolder it. If connection is proper, go to 2.

—————

5 Defective

MAIN CPU

MAIN Assy If the symptom persists after the above

corrections.

The MAIN CPU (IC10) is defective. Replace the MAIN Assy.

—————

5 Defective

MAIN CPU

MAIN Assy If the symptom persists after the above

corrections.

The MAIN CPU (IC10) is defective. Replace the MAIN Assy.

—————

3

The USB POWER SW IC or its control signal is defective.

DDCB Assy, MAIN Assy

Check the CPU_USB_HSTPWREN and HSSW_PWRFL signals from the USB POWER SW IC (IC2702).

If the CPU_USB_HSTPWREN signal does not become H, check the connection. If the connection is OK, then the MAIN CPU (IC10) is defective. Replace the MAIN Assy. If the HSSW_PWRFL signal does not become H, the USB POWER SW IC (IC2702) is in a state of shutdown caused by abnormally high temperature. Check the connection. If the connection is OK, then the port may be damaged. Replace it.

—————

2 V+5_USB

is defective.

DDCB Assy Check V+5_USB of the USB power supply. If V+5_USB cannot be confirmed, go to 3.

If V+5_USB can be confirmed, go to 4.

—————

[4] USB (Type A/Type B)

[4-1] No communication via the USB connector (Type A)

Check the following, with a USB device connected to the USB A connector.

1

Loose connections in the communication line.

DDCB Assy, MAIN Assy

Check the USB communication line. If connection is improper, resolder it.

If connection is proper, go to 2.

—————

3

Loose connections in the USB signal.

MAIN Assy Check the connections of the

communication line (USB_D+, USB_D-).

The communication line may be loosely connected. Correct it if it is. If connection is proper, go to 4.

—————

[4-2] No communication via the USB connector (Type B)

Check the following, with a USB device connected to the USB B connector.

No. Cause Diagnostics Point Item to be Checked Corrective Action Reference

4 Defective

USB_CLK signal

MAIN Assy Check the USB_CLK (= 48.000 MHz)

signal.

The X1 or logic IC (IC4) may be loosely connected with its peripheral devices or a part may be defective. Correct loose connection. If the symptom persists, replace the defective part.

10.19 WAVEFORMS

7 (TP34)

2 Defective

CPU_VBUS1 signal

MAIN Assy Check the CPU_VBUS1 signal. If the CPU_VBUS1 signal cannot be found,

something is wrong in the line from the USBB to MAIN Assys via the DDCB Assy. Identify the defective site and correct it. If the CPU_VBUS1 signal is found, go to 3.

—————

4 Defective

USB_CLK signal

MAIN Assy Check the USB_CLK (= 48.000 MHz)

signal.

The X1 or logic IC (IC4) may be loosely connected with its peripheral devices or a part may be defective. Correct loose connection. If the symptom persists, replace the defective part.

10.19 WAVEFORMS

7 (TP34)

1

Loose connections in the communication line.

MAIN Assy Check the connection of the periphery

circuit of ETHER PHY (IC704).

If connection is improper, resolder it. —————

2 Defective

ETHER PHY or MAIN CPU

MAIN Assy If the symptom persists after the above

corrections.

The ETHER PHY (IC704) may be defective. Replace it. If the symptom persists, the MAIN CPU (IC10) may be defective. Replace the MAIN Assy.

—————

[5] LAN

[5-1] No LAN communication

Check the following, with a peripheral device connected to the LINK terminal.

No. Cause Diagnostics Point Item to be Checked Corrective Action Reference

1 Improper adjust-

ment of the JOG dial or defective washer, gear, or cam plate

Jog dial Section Check that the load value for the Jog dial

is within the specified range, referring to “Measuring method” in “8.3 JOG DIAL ROTATION LOAD ADJUSTMENT.”

If it is outside the specified range, adjust the position of the Adjust plate to change the load value for the Jog dial, referring to “How to Adjust” in “8.3 JOG DIAL ROTATION LOAD ADJUSTMENT.”

—————

During the above adjustment, if the lower-limit adjustment position of the Adjust plate is reached, shavings from the worn-out washer may have increased the friction. Replace the washer, gear, and smoother with new ones, then reassemble. After replacement, adjust the position of the Adjust plate to change the load value for the Jog dial.

—————

Resistance to turning the Jog dial is too strong. (The load value for the Jog dial is outside the specified range.)

No. Cause Diagnostics Point Item to be Checked Corrective Action Reference

6 7 8

A

B

C

D

E

5

CDJ-900NXS

6 7 8

F

23

1

3 Defective

MAIN CPU

MAIN Assy Check the periphery circuit of the MAIN

CPU.

Check the periphery of the MAIN CPU (IC10). If no problem is found, the MAIN CPU may be defective. Replace the MAIN Assy.

—————

2

Loose connections in the communication line.

SRVB Assy, MAIN Assy

Check the connection of the ATAPI lines. Check the connection between the MAIN CPU

(IC10) and SODC (IC7006). If no problem is found, see “[9] DRIVE ASSY.” If the symptom persists after those corrections, go to Step 3.

—————

1 Improper

RESET signal

SRVB Assy, MAIN Assy

Check the ATA_RESET signal (CN7001 pin 40).

Communication will not start while the ATA_RESET signal is L. Check the connection between the MAIN CPU (IC10) and SODC (IC7006). If the connection is not properly

made, correct it. If connection is proper, go to Step2.

—————

1

Power is not supplied properly.

MAIN Assy, JACB Assy

Check the power voltages (V+12A, V-12A, V+5, V+5_DAC) for audio.

Each power-supply may be loosely connected or may be defective. Correct loose connection. If the symptom persists, replace the defective part.

—————

2 Defective

MUTE signal

MAIN Assy Check the MUTE signal (CN9401 pin 5).

While you usually playback, MUTE is canceled, and consist with around -6 V.

The connection, transistor, or DSP may be defective. Correct loose connection. If the symptom persists, replace the defective part.

—————

3

Loose connections in the signal line.

MAIN Assy, JACB Assy

Check the connection of the audio signal lines (ROUT, LOUT).

If connection is improper, resolder it. If connection is proper, go to 4.

—————

1

Loose connections in the signal line.

MAIN Assy, JACB Assy

Check the digital audio signal (SPDIF) and its connection.

If connection is improper, resolder it. If the SPDIF signal cannot be recognized, go to Step 3.

—————

3 Defective

MAIN DSP

MAIN Assy If the symptom persists after the above

corrections.

Replace the MAIN Assy. —————

2 Defective

transistor

MAIN Assy Check the digital audio signal

(SPDIF_OUT) and its connection.

If the SPDIF_OUT signal can be recognized, then the transistor (Q906) may be defective. Check the connection. If no problem is found, replace the transistor. If the SPDIF_OUT signal cannot be recognized, check the connection. If soldering is improper, resolder it.

—————

[6] ATAPI DRIVE

[6-1] No disc playback (Although loading and disc rotation can be performed properly, no track data are output.)

[7] AUDIO OUT

[7-1] No sound

The analog audio signal is not output.

The digital audio signal is not output.

No. Cause Diagnostics Point Item to be Checked Corrective Action Reference

5

DAC or DSP is defective.

MAIN Assy, JACB Assy

Check the digital inputs (IC901 pin 1, 2, 3, 4 ) on DAC (IC901) and digital outputs (IC901 pin 8, 11).

If the analog signal is not output although the digital signal is input, DAC (IC901) or one of its peripheral parts may be defective. If the digital signal is not input, DSP (IC301) or one of its peripheral parts may be defective. Correct loose connection. If the symptom persists, replace the defective part.

—————

4 Defective

DAC_MCLK signal

MAIN Assy Check the DAC_MCLK

(IC901 pin 4 = 16.9344 MHz) signal.

The X501 or logic IC (IC506) may be loosely connected with its peripheral devices or a part may be defective. Correct loose connection. If the symptom persists, replace the defective part.

10.19 WAVEFORMS

8 (IC901-pin 4)

1

Loose connections in the signal line.

JACB Assy

Check the waveforms of the control signals (CONT1, CONT2) from the CN9401 on the JACB Assy.

If the signal cannot be recognized, the JACB Assy may be defective. Check the soldering at the JACB Assy then resolder it, if necessary. If the signal can be recognized, go to Step 2.

—————

2 Defective

MAIN CPU

MAIN Assy

Check the waveforms of the control signals (CONT01, CONT02) from the MAIN Assy.

If the input signal can be recognized, then the MAIN CPU (IC10) may be defective. Replace the MAIN Assy. If the input signal cannot be recognized, the communication line or the peripheral devices may be loosely connected. Resolder the terminals.

—————

[8] CONTROL

[8-1] Improper fader operation after fader start

No. Cause Diagnostics Point Item to be Checked Corrective Action Reference

A

2 3 4

B

C

D

E

F

24

1

CDJ-900NXS

2 3 4

5

1 Missing or

defective part

Loading mecha Check that there is no part missing or

defective.

If there is, install the missing part or replace the defective part.

—————

2

Loose connections in the signal line.

Loading mecha Check that the LP switch has been

mounted.

If soldering is improper, resolder it. —————

3 Improper

assembling

Loading mecha Check that the lever is engaged with the

LP switch.

Engage the lever with the LP switch. —————

4 Improper

soldering

Loading mecha Check that the wires from the loading

motor have been properly soldered.

If they are not soldered, solder them. —————

5 Power supply

error

SRVB Assy Check the power voltages (12 V, 7.6 V, 5 V,

3.3 V, and 1.5 V).

Check the connection of the parts at the periphery of the power-supply IC that does not output the voltage. If the symptom persists after a corrective action, the power supply block is defective. Replace it.

—————

7 MUTE1 and

MUTE2 signal errors

SRVB Assy Check the waveforms of the MUTE1 and

MUTE2 signals. (During loading, the MUTE1 signal is L and the MUTE2 signal is H.)

DRIVER IC (IC7001) and SODC (IC7006) may be improperly soldered or defective. Resolder them, if necessary. If the symptom persists, replace SODC (IC7006).

—————

9 Defective SRVB

Assy

————— If the symptom persists after the above

corrections.

Replace the SRVB Assy or Loading mecha Assy. —————

6 LPS1 and LPS2

signal errors

SRVB Assy

Check the waveforms of the LPS1 and LPS2 signal lines. (The LPS1 and LPS2 signals becomes L when the SW is set to ON.)

The loading detection SWs (S9001 and S9002) may be improperly soldered or defective. Resolder them, if necessary. If the symptom persists, replace them.

5.4 OPERATIONAL WAVEFORMS

2

8 LOAD signal

error

SRVB Assy, SLMB Assy, JINT Assy

Check the waveforms of the LOAD signal, LO+ and LO– signals.

DRIVER IC (IC7001) and SODC (IC7006) may be improperly soldered or defective. Resolder them, if necessary. If the symptom persists, replace SODC (IC7006) or IC7001.

5.4 OPERATIONAL WAVEFORMS

2

1

The main unit is positioned inclined.

Main unit

Check if the main unit is positioned inclined.

Place it on a level surface. —————

2

Improper assembling

Traverse mecha

Check if there is a missing or defective part at the section where the main axis and stepper contact.

If there is, install the missing part or replace the defective part.

—————

3 Power supply

error

SRVB Assy Check the power voltages (12 V, 7.6 V, 5 V,

3.3 V, 1.5 V, VREF1, VREF2 and VHALF).

Check the connection of the parts at the periphery of the power-supply IC that does not output the voltage. If the symptom persists after a corrective action, the power supply block is defective. Replace it.

—————

4INSW signal

error

SRVB Assy

Check the INSW signal. (The INSW signal is switched to ON [L] when a disc is loaded for the first time after the unit is powered up then will immediately be switched to OFF [H].)

The FFC cables that connect the traverse mechanism, JINT, and SRVB are loosely connected, or the INSW is defective. Reconnect them securely. If the symptom persists, replace the INSW.

—————

5 MU1 signal error SRVB Assy Check that the MU1 signal becomes H

after loading is completed.

DRIVER IC (IC7001) and SODC (IC7006) may be improperly soldered or defective. Resolder them, if necessary. If the symptom persists, replace SODC (IC7006).

—————

6

Improper assembling

Cables

Check that the FPC cable that connects the traverse mecha and the SRVB Assy is securely connected.

If it does not, securely connect it. If it is broken, replace the traverse mecha.

—————

[9] DRIVE ASSY

[9-1] Improper operation of the loading mechanism

[9-2] The stepper does not work.

No loading

When it is thought abnormally, the drive section execute drive self-diagnose beforehand.

No. Cause Diagnostics Point Item to be Checked Corrective Action Reference

7 Signal error SRVB Assy Check that a sine-wave signal is input to

Pins 29 and 30 of IC7001.

The IC7001 may be loosely connected or defective. Resolder them, if necessary. If the symptom persists, replace SODC (IC7006).

5.4 OPERATIONAL WAVEFORMS

5 7 8

8 Defective

traverse mecha

————— If the symptom persists after the above

corrections.

Replace the parts in the order of (1) DRIVER IC (IC7001), (2) SRVB Assy, then (3) traverse mecha.

—————

[9-3] No playback

1 Short-circuit pad Traverse mecha Check if the LD short-circuit pad is

short-circuited.

If it is, open it. —————

2 LD current SRVB Assy Check that the LD current is within the

specified range.

If there is any error, replace the traverse mecha.

5.2 Failure Judgment of the Pickup Assy

No. Cause Diagnostics Point Item to be Checked Corrective Action Reference

6 7 8

A

B

C

5

CDJ-900NXS

6 7 8

D

E

F

25

1

4INSW signal

error

SRVB Assy

Check the INSW signal. (The INSW signal is switched to ON [L] when a disc is loaded for the first time after the unit is powered up then will immediately be switched to OFF [H].)

If the signal waveform is not proper, replace the INSW.

—————

5 MUTE1 signal

error

SRVB Assy Check that the MUTE1 signal becomes H

after loading is completed.

DRIVER IC (IC7001) and SODC (IC7006) may be improperly soldered or defective. Resolder them, if necessary. If the symptom persists, replace SODC (IC7006).

—————

6 Improper

assembling

Traverse mecha Check if the objective lens is dirty. Clean the lens. —————

9 ————— ————— If the symptom persists after the above

corrections.

Replace the parts in the order of (1) DRIVER IC (IC7001), (2) FEP (IC7002), (3) SODC (IC7006), (4) SRVB Assy, then (5) traverse mecha.

—————

7 A–F signal error SRVB Assy Check the A–F signals (CN7001).

Check that the signals fluctuate with 2.2 V at the center. If a DC signal is not output, check the VREF1. If a DC signal is not output from it, replace the FEP (IC7002). If an AC signal is not output, check the soldering at the CN7001–IC7002 of the pickup. If soldering is improper, resolder it. If soldering is OK, replace the parts in the order of (1) FEP (IC7002), (2) DRIVER IC (IC7001), (3) SODC (IC7006), (4) SRVB Assy, then (5) traverse mecha.

—————

8 RF signal error SRVB Assy Check the RF signal (CN7001).

Compare the waveform with the operational waveform to check if its quality is low. Check if the disc is dirty or scratched. When it is normal, Check the connections between pickup and CN7001 and IC7002. If soldering is improper, resolder it. If soldering is OK, replace the parts in the order of (1) FEP (IC7002), (2) DRIVER IC (IC7001), (3) SODC (IC7006), (4) SRVB Assy, then (5) traverse mecha.

5.4 OPERATIONAL WAVEFORMS

1

No. Cause Diagnostics Point Item to be Checked Corrective Action Reference

1 Defective

PA NEL CPU

PNLB Assy Check that the signal from pin 29 of the

PA NEL CPU (IC8003) changes from H to L during mode shift.

The PANEL CPU (IC8003) may be defective. Check the soldering of the PANEL CPU and its periphery. If the soldering is OK, then replace it.

—————

2

Disconnection, breakage, or loose connection of cables

SRVB Assy Check the XEUP_CONT signal

(CN7302 pin 3) changes from L to H during mode shift.

The signal line cable may be defective. If it is loosely connected, securely connect it. If it is broken, replace it.

—————

3 Defective SW

power

————— ————— The SW power is defective. Replace it. —————

3

Disconnection, breakage, or loose connection of cables

SRVB Assy Check the XEUP_CONT signal

(CN7302 pin 3) changes from H to L during mode shift.

The signal line cable may be defective. If it is loosely connected, securely connect it. If it is broken, replace it.

—————

4 Defective SW

power

————— ————— The SW power is defective. Replace it. —————

[10] EUP Mode

Shifting to EUP mode is not possible.

1 Defective key or

loose connection of the signal line

PNLB Assy its periphery

Check the connection of the nonresponding key.

Check the connection of the signal line for the nonresponding key. If the connection is proper, replace the connected SW.

—————

2 Defective

PA NEL CPU

PNLB Assy Check that the signal from pin 29 of the

PA NEL CPU (IC8003) changes from L to H during mode shift.

The PANEL CPU (IC8003) may be defective. Check the soldering of the PANEL CPU and its periphery. If the soldering is OK, then replace it.

—————

EUP mode cannot be exited.

No. Cause Diagnostics Point Item to be Checked Corrective Action Reference

Normal mode EUP mode

XEUP_CONT (CN7302 pin3) L H or open PA NEL CPU (IC8003) pin 29 H L

Reference: Signal logic during EUP mode

3 Power supply

error

SRVB Assy Check the power voltages (12 V, 7.6 V, 5 V,

3.3 V, 1.5 V, VREF1, VREF2 and VHALF).

Check the connection of the parts at the periphery of the power-supply IC that does not output the voltage. If the symptom persists after a corrective action, the power supply block is defective. Replace it.

—————

A

2 3 4

B

C

D

E

F

26

CDJ-900NXS

1

2 3 4

5

1 Short-circuit pad Traverse mecha Check if the LD short-circuit pad is

short-circuited.

If it is, open it. —————

1 Missing or

defective part

Loading mecha Check that there is no part missing or

defective.

If there is, install the missing part or replace the defective part.

—————

2 Power supply

error

SRVB Assy

Check the power voltages (12 V, 7.6 V, 5 V,

3.3 V, 1.5 V, VREF1, VREF2 and VHALF).

Check the connection of the parts at the periphery of the power-supply IC that does not output the voltage. If the symptom persists after a corrective action, the power supply block is defective. Replace it.

—————

3 Power supply

error

SRVB Assy

Check the power voltages (12 V, 7.6 v, 5 V,

3.3 V, 1.5 V, VREF1, VREF2 and VHALF).

Check the connection of the parts at the periphery of the power-supply IC that does not output the voltage. If the symptom persists after a corrective action, the power supply block is defective. Replace it.

—————

3 MUTE1 signal

error

SRVB Assy Check that the MUTE1 signal becomes H

after loading is completed.

DRIVER IC (IC7001) and SODC (IC7006) may be improperly soldered or defective. Resolder them, if necessary. If the symptom persists, replace SODC (IC7006).

—————

4 MUTE1 signal

error

SRVB Assy Check that the MUTE1 signal becomes H

after loading is completed.

DRIVER IC (IC7001) and SODC (IC7006) may be improperly soldered or defective. Resolder them, if necessary. If the symptom persists, replace SODC (IC7006).

—————

4 SPDLEC signal

error

SRVB Assy Check that the SPDLEC signal is a PWM

signal with 1.65 V at the center.

DRIVER IC (IC7001) and SODC (IC7006) may be improperly soldered or defective. Resolder them, if necessary. If the symptom persists, replace SODC (IC7006).

5.4 OPERATIONAL WAVEFORMS

4 9

5 SPDLFG signal

error

SRVB Assy Check the SPDLFG signal.

SPDLFG signal may be improperly solded and SODC (IC7006) may be defective. Resolder them, if necessary. If the symptom persists, replace SODC (IC7006). If the symptom persists, replace DRIVER IC (IC7001).

5.4 OPERATIONAL WAVEFORMS

4 9

6 FEDRV signal

error

SRVB Assy Check that the FEDRV signal fluctuates

with 1.65 V at the center.

FEDRV signal may be improperly solded and SODC (IC7006) may be defective. Resolder them, if necessary. If the symptom persists, replace SODC (IC7006). If the symptom persists, replace FEP (IC7002).

5.4 OPERATIONAL WAVEFORMS

3 4 9

7 FE signal error SRVB Assy Check that an S-shaped signal is output

when a waveform of the FE (FEDRV) signal is rising after it drops down from

1.65 V.

FE signal may be improperly solded and SODC (IC7006) may be defective. Resolder them, if necessary. If the symptom persists, replace SODC (IC7006). If the symptom persists, replace FEP (IC7002).

5.4 OPERATIONAL WAVEFORMS

3 4 5 9

5 SPIN1 signal

error

SRVB Assy

Check that the SPIN1 signal to pin 26 of IC7001 is 3.3 V when disc rotation is at full speed soon after inserted a disc.

If the signal is not input, check the soldering. If the soldering is improper, resolder it.

5.4 OPERATIONAL WAVEFORMS

4

6 ————— ————— If the symptom persists after the above

corrections.

Replace the parts in the order of (1) DRIVER IC (IC7001), (2) SODC (IC7006), (3) SRVB Assy, then (4) traverse mecha.

—————

8 ————— ————— If the symptom persists after the above

corrections.

Replace the parts in the order of (1) FEP (IC7002), (2) SODC (IC7006), (3) DRIVER IC (IC7001), (4) SRVB Assy, then (5) traverse mecha.

—————

[11] SERVICE MODE

[11-1] The drive does not work during Test Operation mode.

The LD does not emit light.

1 Short-circuit pad Traverse mecha Check if the LD short-circuit pad is

short-circuited.

If it is, open it. —————

In-focus not possible

The spindle motor does not rotate.

2 LD current SRVB Assy Check that the LD current is within the

specified range.

If there is any error, replace the traverse mecha.

5.2 Failure Judgment of the Pickup Assy

2 LD current SRVB Assy Check that the LD current is within the

specified range.

If there is any error, replace the traverse mecha.

5.2 Failure Judgment of the Pickup Assy

No. Cause Diagnostics Point Item to be Checked Corrective Action Reference

6 7 8

A

B

C

D

E

F

CDJ-900NXS

5

6 7 8

27

1

1 ————— Traverse mecha Check that focusing is in. (If focusing is

out, tracking close is not possible.)

See “In-focus not possible” above. —————

1 ————— ————— ————— If it is judged as NG, the ATAPI drive does not

work properly. If the track data are not output although loading and rotating are properly performed, see [6] ATAPI DRIVE. In other cases, see [9] DRIVE ASSY.

—————

1 ————— ————— ————— If it is judged as NG, the DSP (IC301) or SDRAM

(IC302)does not work properly or communication between the MAIN CPU (IC10) and DSP is not established. Proceed as follows:

—————

2

Power is not supplied properly.

MAIN Assy Check the power voltages (V+3R3_DSP

and V+1R2_DSP).

The DSP requires two power supply systems. Check the connections of the power supply lines. If soldering is improper, resolder it.

—————

3 The clock is not

properly input.

MAIN Assy Check that the frequency at pin 38 (DSP_

CLK) of SDRAM (IC302) is approx. 129 MHz.

Check the connection of the logic ICs (IC501, IC506). If soldering is improper, resolder it.

10.19 WAVEFORMS

9 (IC302-pin 38)

4 The RESET

signal is not properly input.

MAIN Assy Check that the signals of the DSP_RST

line are H.

Check the connection of the logic IC (IC8). If soldering is improper, resolder it. If the signal of the DSP_RST line is L, check the connection of the logic IC (IC8) and its periphery.

—————

5

Loose connection between the MAIN CPU and DSP

MAIN Assy Check the connection between the

MAIN CPU and DSP.

Check the connections between MAIN CPU (IC10) and DSP (IC301). If soldering is improper, resolder it.

—————

6

Loose connection between the MAIN DSP and SDRAM

MAIN Assy Check the connection between the

DSP and SDRAM.

Check the connections between DSP (IC301) and SDRAM (IC302). If soldering is improper, resolder it.

—————

No tracking close

2 Signal error SRVB Assy Check that the E and F signals fluctuate

with 2.2 V at the center.

Check that the signals fluctuate with 2.2 V at the center. If a DC signal is not output, check the VREF1. If a DC signal is not output from it, replace the FEP (IC7002). If an AC signal is not output, check the soldering at the CN7001–IC7002 of the pickup. If soldering is improper, resolder it. If soldering is OK, replace the traverse mecha.

5.4 OPERATIONAL WAVEFORMS

3 TE signal error SRVB Assy Check that the TE signal fluctuates

with 1.65 V at the center.

Check the connection of the parts at the periphery of the FEP (IC7002). If soldering is improper, resolder it. If soldering is OK, replace the FEP (IC7002).

5.4 OPERATIONAL WAVEFORMS

4 5 6 7 8

4 TEDRV signal

error

SRVB Assy Check that the TEDRV signal fluctuates

with 1.65 V at the center, and that a pulselike signal is output during tracking close.

If the output signal waveform is not proper, the connection of the SODC (IC7006) and its periphery may be loose or the parts may be defective. If the connection is loose, reconnect securely. If the connection is OK, replace the SODC (IC7006).

5.4 OPERATIONAL WAVEFORMS

6 7 8

[12] Error Codes

[12-1] E-7001: DISC DRIVE ERROR

How to respond when an error code is displayed on the CONTROLLER DISPLAY (LCD) is described below.

The ATAPI drive does not work properly.

[12-2] E-7010: DSP DEVICE ERROR

The DSP (IC301) does not work properly. Downloading of programs is not possible.

5 ————— ————— If the symptom persists after the above

corrections.

Replace the parts in the order of (1) FEP (IC7002), (2) SODC (IC7006), (3) DRIVER IC (IC7001), (4) SRVB Assy, then (5) traverse mecha.

—————

7 ————— ————— If the symptom persists after the above

corrections.

Replace the MAIN Assy. —————

No. Cause Diagnostics Point Item to be Checked Corrective Action Reference

A

2 3 4

B

C

D

E

F

28

CDJ-900NXS

1

2 3 4

5

2 Power is not

supplied properly.

MAIN Assy Check the power voltages of V+3R3_ETH

and V+3R3A_ETHR) lines.

Check the connections of the power supply lines. If soldering is improper, resolder it.

—————

3 The clock is not

properly input.

MAIN Assy Check that the frequency at Pin 5 (CLK) of

ETHER PHY (IC704) is 25 MHz.

Check the connections between X701 and ETHER PHY. If soldering is improper, resolder it.

10.19 WAVEFORMS

a (IC704-pin 5)

4 The RESET

signal is not properly input.

MAIN Assy Check that the signals of the ETHER_RST

and CPU_ETHER_RST lines are H.

Check the connection of the logic IC (IC8). If soldering is improper, resolder it. If the signal of the CPU_ETHER_RST line is L, the port on the MAIN CPU may be damaged. If the signal of the ETHER_RST line is L, check the connection of the logic IC (IC8) and its periphery.

—————

5

Loose connection between the MAIN CPU and ETHER PHY

MAIN Assy

Check the connections of communication line

between the MAIN CPU and

ETHER PHY.

Check the connections between MAIN CPU (IC10) and ETHER PHY (IC704). If soldering is improper, resolder it.

—————

1 ————— ————— ————— If it is judged as NG, the ETHER PHY (IC704)

does not work properly or communication between the MAIN CPU (IC10) and ETHER PHY is not established. Proceed as follows: See also “[5-1] No LAN communication.”

—————

[12-3] E-7021: PHY CHIP ERROR

The ETHER PHY (IC704) does not work properly.

6 ————— ————— If the symptom persists after the above

corrections.

Replace the ETHER PHY (IC704). —————

2 ————— ————— If the symptom persists after the above

corrections.

Replace the MAIN Assy. —————

No. Cause Diagnostics Point Item to be Checked Corrective Action Reference

[12-4] E-7026: AUTH CHIP ERROR

The Apple authentication chip (IC14) does not work properly.

1

Loose connection between the MAIN CPU and AUTHENTICATION CHIP

MAIN Assy

Check the connections of communication line between the MAIN CPU and AUTHENTICATION CHIP

.

Check the connections between MAIN CPU (IC10) and AUTHENTICATION CHIP (IC14). If soldering is improper, resolder it.

—————

6 7 8

A

B

C

D

E

F

CDJ-900NXS

5

6 7 8

29

1

RF (CD: STD-905)

V: 200 mV/div. H: 100 nsec/div.

1

Pause (CD) 1-ch TE, 2-ch TEDRV, 3-ch RF, 4-ch OFTR

(CH1) V: 1 V/div. H: 100 μsec/div. (CH2) V: 1 V/div. H: 100 μsec/div. (CH3) V: 1 V/div. H: 100 μsec/div. (CH4) V: 5 V/div. H: 100 μsec/div.

6

Loading in (1-ch LPS1, 2-ch LPS2, 3-ch LOAD)

(CH1) V: 5 V/div. H: 100 msec/div. (CH2) V: 5 V/div. H: 100 msec/div. (CH3) V: 2 V/div. H: 100 msec/div.

Loading out (1-ch LPS1, 2-ch LPS2, 3-ch LOAD)

(CH1) V: 5 V/div. H: 200 msec/div. (CH2) V: 5 V/div. H: 200 msec/div. (CH3) V: 2 V/div. H: 200 msec/div.

2

Track search (CD) 1-ch TE, 2-ch TEDRV, 3-ch SLIN1, 4-ch SLIN2

(CH1) V: 1 V/div. H: 200 msec/div. (CH2) V: 1 V/div. H: 200 msec/div. (CH3) V: 2 V/div. H: 200 msec/div. (CH4) V: 2 V/div. H: 200 msec/div.

7

In-focus (CD) 1-ch FE, 2-ch FEDRV

(CH1) V: 0.5 V/div. H: 1 msec/div. (CH2) V: 0.5 V/div. H: 1 msec/div.

3

Search (CD-DA) 1-ch TE, 2-ch TEDRV, 3-ch SLIN1, 4-ch SLIN2

(CH1) V: 1 V/div. H: 100 msec/div. (CH2) V: 1 V/div. H: 100 msec/div. (CH3) V: 2 V/div. H: 100 msec/div. (CH4) V: 2 V/div. H: 100 msec/div.

8

Setup (CD) 1-ch FE, 2-ch FEDRV, 3-ch TE, 4-ch SPIN

(CH1) V: 1 V/div. H: 500 msec/div. (CH2) V: 500 mV/div. H: 500 msec/div. (CH3) V: 1 V/div. H: 500 msec/div. (CH4) V: 2 V/div. H: 500 msec/div.

4

Playback (CD) 1-ch FE, 2-ch TE, 3-ch SLIN1, 4-ch SLIN2

(CH1) V: 1 V/div. H: 1 sec/div. (CH2) V: 1 V/div. H: 1 sec/div. (CH3) V: 2 V/div. H: 1 sec/div. (CH4) V: 2 V/div. H: 1 sec/div.

5

Stop (CD) 1-ch FE, 2-ch FEDRV, 3-ch SPIN, 4-ch SPDLFG

(CH1) V: 500 mV/div. H: 500 msec/div. (CH2) V: 500 mV/div. H: 500 msec/div. (CH3) V: 2 V/div. H: 500 msec/div. (CH4) V: 5 V/div. H: 500 msec/div.

9

NOTE: The squared numbers denote measuring point in the schematic diagram and PCB diagram.

A

SRVB ASSY

2 3 4

5.4 OPERATIONAL WAVEFORMS

A

B

C

D

E

F

30

1

CDJ-900NXS

2 3 4

Pioneer CDJ-900NXS Service manual

SAFETY INFORMATION

CONTENTS

1. SERVICE PRECAUTIONS

1.1 NOTES ON SOLDERING

1.2 NOTES ON REPLACING PARTS

1.3 SERVICE NOTICE

2. SPECIFICATIONS

3. BASIC ITEMS FOR SERVICE

3.1 CHECK POINTS AFTER SERVICING

3.2 JIGS LIST

3.3 PCB LOCATIONS

4. BLOCK DIAGRAM

4.1 OVERALL WIRING DIAGRAM

4.2 SIGNAL BLOCK DIAGRAM

4.3 POWER SUPPLY BLOCK DIAGRAM

5. DIAGNOSIS

5.1 SEQUENCE

5.2 FAILURE JUDGEMENT OF THE PICKUP ASSY

5.3 TROUBLESHOOTING

5.4 OPERATIONAL WAVEFORMS