Pioneer CDJ-900 User manual

ORDER NO.
PIONEER CORPORATION 4-1, Meguro 1-chome, Meguro-ku, Tokyo 153-8654, 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
2009
2009 Printed in Japan
CDJ-900
RRV4000
MULTI PLAYER
CDJ-900
THIS MANUAL IS APPLICABLE TO THE FOLLOWING MODEL(S) AND TYPE(S).
Model Type Power Requirement Remarks
CDJ-900 CUXJ AC 120 V
CDJ-900 SYXJ8AC 220 V to 240 V
CDJ-900 FLXJ AC 110 V to 240 V
CDJ-900 KXJ5 AC 220 V to 240 V
CDJ-900 AXJ5 AC 220 V
For details, refer to "Important Check Points for good servicing".
K-IZE OCT.

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SAFETY INFORMATION
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.
Additional Laser Caution
1. Laser Interlock Mechanism
The position of the switch (S8902) 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 of AN22022A
(IC7004) on the SRVAssy is connected to GND, or else the
terminals of Q7002 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.
IMPORTANT
THIS PIONEER APPARATUS CONTAINS
LASER OF CLASS 1.
SERVICING OPERATIONOF THE APPARATUS
SHOULD BE DONE BY A SPECIALLY
INSTRUCTED PERSON.
For CD Wave length (typ) : 790 nm
Operation output : 4 mW CW, Class 1
Maximum output : Class 1 (Under fault condition)
Laser Pickup specifications and Laser characteristics

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LABEL CHECK
(Printed on the bottom plate)
CUXJ
(Printed on the bottom plate)
FLXJ
(Printed on the bottom plate)
SYXJ8
(Printed on the bottom plate)
KXJ5
(Printed on the bottom plate)
AXJ5

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[Important Check Points for Good Servicing]
In this manual, procedures that must be performed during repairs are marked with the below symbol.
Please be sure to confirm and follow these procedures.
1. Product safety
Please conform to product regulations (such as safety and radiation regulations), and maintain a safe servicing environment by
following the safety instructions described in this manual.
1 Use specified parts for repair.
Use genuine parts. Be sure to use important parts for safety.
2 Do not perform modifications without proper instructions.
Please follow the specified safety methods when modification(addition/change of parts) is required due to interferences such as
radio/TVinterference and foreign noise.
3 Make sure the soldering of repaired locations is properly performed.
When you solder while repairing, please be sure that there are no cold solder and other debris.
Soldering should be finished with the proper quantity. (Refer to the example)
4 Make sure the screws are tightly fastened.
Please be sure that all screws are fastened, and that there are no loose screws.
5 Make sure each connectors are correctly inserted.
Please be sure that all connectors are inserted, and that there are no imperfect insertion.
6 Make sure the wiring cables are set to their original state.
Please replace the wiring and cables to the original state after repairs.
In addition, be sure that there are no pinched wires, etc.
7 Make sure screws and soldering scraps do not remain inside the product.
Please check that neither solder debris nor screws remain inside the product.
8 There should be no semi-broken wires, scratches, melting, etc. on the coating of the power cord.
Damaged power cords may lead to fire accidents, so please be sure that there are no damages.
If you find a damaged power cord, please exchange it with a suitable one.
9 There should be no spark traces or similar marks on the power plug.
When spark traces or similar marks are found on the power supply plug, please check the connection and advise on secure
connections and suitable usage. Please exchange the power cord if necessary.
aSafe environment should be secured during servicing.
When you perform repairs, please pay attention to static electricity, furniture, household articles, etc. in order to prevent injuries.
Please pay attention to your surroundings and repair safely.
2. Adjustments
To keep the original performance of the products, optimum adjustments and confirmation of characteristics within specification.
Adjustments should be performed in accordance with the procedures/instructions described in this manual.
4. Cleaning
For parts that require cleaning, such as optical pickups, tape deck heads, lenses and mirrors used in projection monitors, proper
cleaning should be performed to restore their performances.
3. Lubricants, Glues, and Replacement parts
Use grease and adhesives that are equal to the specified substance.
Make sure the proper amount is applied.
5. Shipping mode and Shipping screws
To protect products from damages or failures during transit, the shipping mode should be set or the shipping screws should be
installed before shipment. Please be sure to follow this method especially if it is specified in this manual.

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CONTENTS
SAFETY INFORMATION.......................................................................................................................................................... 2
1. SERVICE PRECAUTIONS.................................................................................................................................................... 6
1.1 NOTES ON SOLDERING ............................................................................................................................................... 6
1.2 NOTES ON FLASH ROM ............................................................................................................................................... 6
1.3 NOTES ON PANEL CPU AND GUI CPU........................................................................................................................ 6
1.4 NOTES ON LINK CONNECTOR .................................................................................................................................... 7
1.5 REPAIR OF THE JACB ASSY ........................................................................................................................................ 7
2. SPECIFICATIONS................................................................................................................................................................. 8
2.1 SPECIFICATIONS .......................................................................................................................................................... 8
2.2 DISCS / FILES PLAYABLE ............................................................................................................................................. 9
2.3 PANEL FACILITIES....................................................................................................................................................... 11
3. BASIC ITEMS FOR SERVICE ............................................................................................................................................ 14
3.1 CHECK POINTS AFTER SERVICING ......................................................................................................................... 14
3.2 PCB LOCATIONS ......................................................................................................................................................... 15
3.3 JIGS LIST ..................................................................................................................................................................... 17
4. BLOCK DIAGRAM .............................................................................................................................................................. 18
4.1 OVERALL WIRING DIAGRAM ..................................................................................................................................... 18
4.2 SIGNAL BLOCK DIAGRAM.......................................................................................................................................... 20
4.3 POWER SUPPLY BLOCK DIAGRAM........................................................................................................................... 22
5. DIAGNOSIS ........................................................................................................................................................................ 24
5.1 POWER ON SEQUENCE............................................................................................................................................. 24
5.2 TROUBLESHOOTING.................................................................................................................................................. 26
5.3 FAILURE JUDGEMENT OF THE PICKUP ASSY ........................................................................................................ 39
5.4 CONNECTION CHECK WITH THE PC........................................................................................................................ 40
6. SERVICE MODE ................................................................................................................................................................. 41
6.1 OUTLINE OF THE SERVICE MODE............................................................................................................................ 41
6.2 ABOUT THE DEVICE OF CDJ-900.............................................................................................................................. 41
6.3 DETAILS ON SERVICE MODE .................................................................................................................................... 42
7. DISASSEMBLY ................................................................................................................................................................... 55
8.EACH SETTING AND ADJUSTMENT ................................................................................................................................ 66
8.1 JOG DIAL ROTATION LOAD ADJUSTMENT ............................................................................................................... 66
8.2 ITEMS FOR WHITCH USERS SETTING IS AVAILABLE............................................................................................. 67
8.3 UPDATING OF THE FIRMWARE AND RECOVERY.................................................................................................... 67
9. EXPLODED VIEWS AND PARTS LIST............................................................................................................................... 68
9.1 PACKING SECTION ..................................................................................................................................................... 68
9.2 EXTERIOR SECTION .................................................................................................................................................. 70
9.3 CONTROL PANEL SECTION....................................................................................................................................... 72
9.4 JOG DIAL SECTION .................................................................................................................................................... 74
9.5 SLOTIN MECHA SECTION .......................................................................................................................................... 76
10. SCHEMATIC DIAGRAM.................................................................................................................................................... 78
10.1 SRV ASSY (1/2).......................................................................................................................................................... 78
10.2 SRV ASSY (2/2) and SLMB ASSY ............................................................................................................................. 80
10.3 MAIN ASSY (1/3)........................................................................................................................................................ 82
10.4 MAIN ASSY (2/3)........................................................................................................................................................ 88
10.5 MAIN ASSY (3/3) and USBA ASSY ........................................................................................................................... 94
10.6 JACB ASSY ................................................................................................................................................................ 96
10.7 DFLB and ENCB ASSYS............................................................................................................................................ 98
10.8KSWB ASSY............................................................................................................................................................. 100
10.9 SLDB ASSY.............................................................................................................................................................. 102
10.10 BFLB ASSY ............................................................................................................................................................ 104
10.11 MSWB ASSY .......................................................................................................................................................... 106
10.12 JOGB ASSY ........................................................................................................................................................... 107
10.13 JFLB ASSY............................................................................................................................................................. 108
10.14 POWER SUPPLY and ACIN ASSYS ...................................................................................................................... 110
10.15 WAVEFORMS......................................................................................................................................................... 112
11. PCB CONNECTION DIAGRAM ...................................................................................................................................... 116
11.1 SRV and SLMB ASSYS............................................................................................................................................ 116
11.2 MAIN ASSY .............................................................................................................................................................. 120
11.3 USBA and JACKB ASSYS........................................................................................................................................ 124
11.4 DFLB and ENCB ASSYS.......................................................................................................................................... 126
11.5 KSWB and SLDB ASSYS......................................................................................................................................... 130
11.6 BFLB and MSWB ASSYS......................................................................................................................................... 134
11.7 JOGB and JFLB ASSYS........................................................................................................................................... 136
11.8POWER SUPPLY and ACIN ASSYS ........................................................................................................................ 138
12. PCB PARTS LIST............................................................................................................................................................ 140

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1. SERVICE PRECAUTIONS
1.1 NOTES ON SOLDERING
1.2 NOTES ON FLASH ROM
1.3 NOTES ON PANEL CPU AND GUI CPU
• 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
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.
NEVER replace the FLASH ROM (IC114) on the MAINAssy during servicing.
If the FLASH ROM is assumed to be defective, replace the whole MAINAssy.
This FLASH ROM contains data that can only be written in at the factory.
An IEEE 802.3-based MAC address specific to this unit has been written.
After the PANEL CPU (IC8005) or GUI CPU (IC4002) is replaced, update its program.
The built-in PANEL CPU and GUI CPU contains a FLASH ROM and will not operate without a program.
For updating, proceed as follows:
1. Insert the USB flash memory device that contains the program.
2. While holding the USB STOP key pressed, turn on the unit.
Hold the USB STOP key pressed until the “Pioneer” logo disappears.
3. Updating starts.

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1.4 NOTES ON LINK CONNECTOR
1.5 REPAIR OF THE JACB ASSY
If the LINK connector (JA1301) is replaced during a repair of the MAINAssy, detach the ID LABEL (AXW7015) from the old
connector then attach it to the new connector.
As an IEEE 802.3-based MAC address specific to this unit has been printed on the ID LABEL (AXW7015) be sure to attach it.
ID LABEL
MAINAssy
When repairing the JACB Assy, note the following:
On part of the initial-lot JACB Assy, the DCN1186 (470 ohms, Part description No. 471) is mounted as the resistors
(R8820–8823, 8839–8844, 8855, and 8856). In such a case, mount a new DCN1186 during replacement. (See the section
10.6 JACB ASSY.)
This applies only to the initial-lot products for the destinations SYXJ8 and FLXJ.
For products for other destinations, replace with the DCN1185 (330 ohms, Part description No. 331), as described in the
circuit diagram.

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2. SPECIFICATIONS
2.1 SPECIFICATIONS
Power requirements.................................... AC 120 V, 60 Hz (CUXJ)
AC 220 Vto 240 V, 50 Hz/60 Hz (SYXJ8, AXJ5)
AC 110 Vto 240 V, 50 Hz/60 Hz (FLXJ)
AC 220 V, 60 Hz (KXJ5)
Power consumption................................................................... 26 W
Power consumption (standby).................................................. 0.4 W
Main unit weight....................................................................... 3.9 kg
External dimensions......305 mm (W) x 115.6 mm (H) x 385 mm (D)
Tolerable operating temperature...............................+5 °C to +35 °C
Tolerable operating humidity............. 5 % to 85 % (no condensation)
Analog audio output (AUDIO OUT L/ R)
Output terminal............................................................ RCA terminal
Output Level........................................................... 2.0 Vrms (1 kHz)
Frequency response.................................................. 4 Hz to 20 kHz
S/ Nratio.................................................................................115 dB
Total harmonic distortion...................................................... 0.003 %
Digital audio output (DIGITAL OUT)
Output terminal............................................................ 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/ 500 mA or less
USB upstream section (USB)
Port......................................................................................... Type B
LAN (PRO DJ LINK)
Rating.............................................................................100Base-TX
Control output (CONTROL)
Port...................................................................................... Mini-jack
• The articles concerning free repairs, etc., indicated on the
warranty do not apply to the rekordbox music management
software. Before installing or using rekordbox, carefully read the
articles in Software end user license agreement.
• The specifications and design of this product are subject to
change without notice.

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2.2 DISCS / FILES PLAYABLE

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2.3 PANEL FACILITIES

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3. BASIC ITEMS FOR SERVICE
3.1 CHECK POINTS AFTER SERVICING
Items to be checked after servicing / CDJ
To keep the product quality after servicing, confirm recommended check points shown below.
No. Procedures Check points
1
2
3
4
5
7
6
Confirm the firmware version on Test Mode. The version of the firmware must be latest.
Update firmware to the latest one, if it is not the latest.
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.
Play back a CD. (track search) Audio, Search and operations must be normal.
Check the connection of each interface.
Play back data contained in the device connected to USB A. Audio, Search and operations must be normal.
USB B The device must be recognized by the PC.
LINK The PC must be linked.
Check output signals while the JOG dial or TEMPO slider is
being operated. Audio and operations must be normal.
Check the appearance of the product. No scratches or dirt on its appearance after receiving it for
service.
Check the keys on the unit. Check whether a product can be operated properly by buttons
on the product.
Item to be checked regarding audio
Distortion
Noise
Volume too low
Volume too high
Volume fluctuating
Sound interrupted
See the table below for the items to be checked regarding video and audio.
Cleaning
Before shipping out the product, be sure to clean the following positions by using the prescribed cleaning tools.
NamePosition to be cleaned Part No. Remarks
Refer to “9.5 SLOTINMECHA SECTION”.Cleaning liquidPickup lenses GEM1004
Cleaning paper GED-008
No. Procedures Check points
1
Confirm playback error rates at the innermost and outermost
tracks by using the following disc.
CD test disc (STD-905)
The error rates must be less than 3.0 ×10
-3
.
(This procedure can determine if the drive is degraded.)
Specific Items to be Checked

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3.2 PCB LOCATIONS
1
B
SLMB ASSY
A
SRVASSY
O
ACINASSY
C
MAIN
ASSY
E
JACB
ASSY
G
ENCB
ASSY
J
BFLB
ASSY
K
MSWB
ASSY
TM ASSY SLOTINMECHA ASSY
H
KSWB
ASSY
POWER
SUPPLY
ASSY
• Bottom view
• Bottom view
I
SLDB
ASSY
M
JFLB
ASSY
F
DFLB
ASSY
L
JOGB
ASSY
N
USBA
ASSY
D

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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.
Mark Symbol and Description CDJ-900
/CUXJ
CDJ-900
/SYXJ8
CDJ-900
/FLXJ
CDJ-900
/KXJ5
CDJ-900
/AXJ5
NSP 1..DFLA ASSY DWM2361 DWM2361 DWM2361 DWM2361 DWM2361
2..KSWB ASSY DWS1416 DWS1416 DWS1416 DWS1416 DWS1416
NSP 1..JFLA ASSY DWM2362 DWM2356 DWM2356 DWM2356 DWM2356
1..MAINASSY DWX3019 DWX3019 DWX3019 DWX3019 DWX3019
1..SRVASSY DWX3020 DWX3020 DWX3020 DWX3020 DWX3020
1..USBA ASSY DWX3044 DWX3044 DWX3044 DWX3044 DWX3044
2..ACINASSY DWR1461 DWR1462 DWR1462 DWR1462 DWR1462
2..MSWB ASSY DWS1415 DWS1415 DWS1415 DWS1415 DWS1415
2..JFLB ASSY DWX3024 DWX3024 DWX3024 DWX3024 DWX3024
2..BFLB ASSY DWX3025 DWX3025 DWX3025 DWX3025 DWX3025
2..JOGB ASSY DWX3026 DWX3026 DWX3026 DWX3026 DWX3026
2..SLDB ASSY DWS1417 DWS1417 DWS1417 DWS1417 DWS1417
2..SLMB ASSY DWS1418 DWS1418 DWS1418 DWS1418 DWS1418
2..DFLB ASSY DWX3021 DWX3021 DWX3021 DWX3021 DWX3021
2..ENCB ASSY DWX3022 DWX3022 DWX3022 DWX3022 DWX3022
2..JACB ASSY DWX3023 DWX3023 DWX3023 DWX3023 DWX3023
>1..POWER SUPPLY ASSY DWR1463 DWR1463 DWR1463 DWR1463 DWR1463
NSP 1..SLOTINMECHA ASSY DXA2121 DXA2121 DXA2121 DXA2121 DXA2121
1..TM ASSY 03-S VXX3125 VXX3125 VXX3125 VXX3125 VXX3125

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3.3 JIGS LIST
Lubricants and Glues List
Name Part No. Remarks
Dyfree GEM1036 Refer to “9.5 SLOTINMECHA SECTION”.
Lubricating oil ZLB-HFD1600 Refer to “9.2 EXTERIOR SECTION”,
“9.4 JOG DIAL SECTION”.
Lubricating oil GYA1001 Refer to “9.4 JOG DIAL SECTION”,
“9.5 SLOTINMECHA SECTION”.

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4. BLOCK DIAGRAM
4.1 OVERALL WIRING DIAGRAM
NPOWER SUPPLY
ASSY (DWR1463)
SLOTIN MECHA ASSY
(DXA2121)
TM ASSY 03-S
(DXX3125)
D
SRV ASSY (DWX3020)
C
C C
1/3- 3/3
MAIN ASSY (DWX3019)
A
A A
1/2, 2/2
USBA ASSY
(DWX3044)
HKS
(D
EJACB ASSY
(DWX3023)
B
SLMB ASSY
(DWS1418)
G
E
(D
POWER CABLE
ADG7021: CUXJ
ADG1154: SYXJ8, FLXJ
ADG7097: FLXJ
XDG3054: KXJ5
ADG7079: AXJ5
O
-
Wh
-
The
The
-
ACIN ASSY
(DWR1461: CUXJ)
(DWR1462: SYXJ8, FLXJ, KXJ5, AXJ5)
CN7005
JA1
CN7301
CN1
JA1101
JA8803
CN7002
CN8901 CN7004
CN2
JA8802
CN7001
CN7003
CN7302
CN1303
CN2001
CN3001
CN501
CN8801
JA8801
CN8501
CN8
CN8001
CN9201
JA9901
CN9901
CN8004
CN1305
POWER CABLE
JA1301
XH-XH CABLE
FRTN
PD
TDRV
LD65
TRTN
FDRV
LD78
A
VRCOM
D
VR78
VR65
VREF1
H3-
GNDD
GNDA
INSIDE
7/x6
V+5D
H1-
RW/XR
H2+
F
H3+
H2-
C
GND
B
GND
V+5A
EUP_CONT
GNDA
V+12 V+12
A1
V+12_EUP
H1+
A2
A3
E
GNDA
NC
VKN1818-A
1
GNDD
2
ATA_CS1
3
ATA_CS0
4
GNDD
5
ATA_A2
6
ATA_A0
7
GNDD
8
ATA_A1
9
GNDD
10
ATA_IRQ
11
GNDD
12
ATA_DACLK
13
GNDD
14
ATA_RDY
15
GNDD
16
ATA_DIOR
17
GNDD
18
ATA_WR
19
GNDD
20
ATA_DREQ
21
GNDD
22
GNDD
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_D5
35
ATA_D9
36
ATA_D6
37
ATA_D8
38
ATA_D7
39
GNDD
40
ATA_RESET
1
2
DKN1599-A
1
2
3 4 5 6
B2P3-VH
1
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
DKN1574-A
1
VBUS
2
D-
3
D+
4
GNDD
DKB1089-A
2 SPDIF 1GNDD
DKN1288-A
1
ST1-
2
ST1+
3
ST2-
4
ST2+
KM200NA5
1
2
3
4
5
AKM1291-A
1
LO-
2
LO+
3
GNDD
4
LPS1
5
LPS2
B6B-XH-A
1 2 3 4 5 6
DSA1035-A
S1
12
VKB1243-A
2CONT1
3CONT1 1CONT2
DKN1445-A
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
DKN1312-A
1
2
3
4
5
6
7
8
9
10
11
12
AKM1299-A
1
V+12_EUP
2
V+12
3
V+12
4
EUP_CONT
5
GNDD
6
V+3R3
7
V+3R3
8
GNDD
9
V+5
10
GNDD
11
V-11
12
GNDD
13
V+7R2
CKS5075-A
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
VKN1430-A
1
ENV
2
FLCON_CNVSS
3
PNL_SCLK
4
FLCON_BUSY
5
PNL_RXD
6
CLK_REQ
7
PNL_BUSY
8
FLCON_RESET
9
PNL_TXD
10
PNL_CNVSS
11
GNDD
12
PNL_RESET
13
GNDD
14
GNDD
15
V+7R2
16
GNDD
17
V+12
18
V+12_EUP
19
V+12
20
GNDD
21
V+3R3
22
USB_SW
23
EUP_CONT
24
USB_LED
25
CPU_EUP_CONT
26
V+5
AKM1284-A
1
2
3
4
5
6
7
8
9
10
11
12
13
VKN1938-A
1
V+10A
2
ROUT
3
GNDA
4
GNDA
5
LOUT
6
V-10A
7
V+REF2R5
8
MUTE
9
CONT1
10
CONT2
11
GNDD
12
SPDIF
KM200NA12
1
2
3 4 5 6 7 8 9
10 11 12
AKB7181-A
5GNDD 4GNDD 3L_OUT 2GNDD 1R_OUT
KM200NA
KM20
9607S-20F
1
USB_LED
2
USB_SW
3
1KEY_SW
4
2KEY_SW
5
4KEY_SW
6
8KEY_SW
V+5
52492-2020
15
16 17 18 19
20
DKB1087-A
1
V+5USB
2
D-
3
D+
4
DGND
KM200NA5L
1 2 3 4
GNDD
5
GNDD
VKN1257-A
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
AKM1276-A
1
V+5USB
2
D-
3
D+
4 5
PH-PH CABLE
DKP3849-
L=90mm
ZWNN1007G28-9-06A
L=60mm (WHITE)
PH-PH CABLE
PF05PP-B17
L=175mm
LOADING MOTOR
LO-
03 TM.ASS'Y (VWT1225- /J)
SPINDLE MOTOR 04 (VXM1112-)
LIVE
NEUTRAL
DKP3822-
L=55mm
LIVE NEUTRAL
USB CONNECTOR
(A TYPE)
USB CONNECTOR
(B TYPE)
VIOLET
ETHERNET
CONNECTOR
FFC
DDD1500-
SAME FACE
L=130mm
BLUE
LR
AUDIO OUT CONTROL DIGITAL OUT
04SD PICK UP ASS'Y R (OWY8036- /XDP/5)
*STRIGHT TYPE
STEPPING
MOTOR
(VXM1113-)
DC MOTOR
(DXM1230-)
FFC
DDD1450-
SAME FACE
L=115mm
LO+
LO-
DKN1576-A
ZH-PH CABLE
DKP3838-
L=70mm
DDD1445-
FFC
L=320mm
REVERSE FACE
3
*RIGHT ANGLE
FRAME
GND
CHASSIS
GND
DE007VF0
L=75mm
DKP3831-
L=60mm
EARTH LEAD UNIT
ZWNN1007G28-8-06A
L=60mm (GRAY)
USB CABLE
DDA1040-
L=100mm
*RIGHT ANGLE
LO+
FPC
FFC
PH-PH CAB
PF04PP-Q1
L=175mm
FFC
DDD1501-
SAME FACE
L=90mm

19
CDJ-900
56 7 8
56 7 8
A
B
C
D
E
F
FDFLB ASSY
(DWX3021)
HKSWB ASSY
(DWS1416) MJFLB ASSY
(DWX3024)
L
JOGB ASSY
(DWX3026)
ISLDB ASSY
(DWS1417)
G
ENCB ASSY
(DWX3022)
K
MSWB ASSY
(DWS1415)
J
BFLB ASSY (DWX3025)
-
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.
-
: The power supply is shown with the marked box.
CN9402
JH9401
CN8501
CN8005
JH9701
CN4001
JH4001
CN8002
CN8001
CN9201
CN8003
CN9403
CN9501
CN8701
CN8006
CKS1072-A
1
JOG_SW
2
NC
3
GNDD
51048-0400
1
GNDD
2
V+3R3
3
JOG1
4
JOG2
KM200NA4L
1
2
3 4
KM200NA4L
1
GNDD
2
ENC_SW
3
ENC_2
4
ENC_1
51048-0700
1 2 3 4 5 6 7
XKP3022-A
1 2 3 4 5 6 7 8 9
10
GNDD
11 12 13 14 15 16 17 18 19 20 21 22
51048-0700
1
V+12
2
GNDD
3
KEY4
4
BROWS_LED
5
TAG_LIST-LED
6
INFO-LED
7
MENU-LED
XKP3022-A
1
CLK_REQ
2
FLCON_CNVSS
3
FLCON_BUSY
4
FLCON_SCLK
5
FLCONL_RXD
6
PNL_TXD2
7
FLCON_RESET
8
D_BK
9
D_LAT
10
N.C.(GNDD)
11
D_SDO
12
KEY3
13
KEY4
14
V+3R3
15
GNDD
16
V+7R2
17
GNDD
18
V+12
19
D_SCLK
20
GNDD
21
GNDD
22
V+54
9607S-20F
1
USB_LED
2
USB_SW
3
1KEY_SW
4
2KEY_SW
5
4KEY_SW
6
8KEY_SW
7
V+5
8
AS_IDCM1
9
AS_IDC4
10
AS_IDC3
11
AS_IDC2
12
AS_IDC1
13
AS_IDCM3
14
AS_IDCM2
15
SHIFT_SW
16
KEY2_B
17
CUE_SW
18
PLAY_SW
19
REV_SW
20
GNDD
52492-2020
1 2 3
4 5 6 7 8 9
10 11 12
13 14 15
16 17 18 19
20
52492-1920
1
JOG2
2
JOG1
3
JOG_SW
4
J_DSO
5
J_SCLK
6
J_LAT
7
J_BK
8
V+3R3
9
GNDD
10
V+7R2
11
GNDD
12
V+33
13
GNDD
14
V+12
15
GNDD
16
V+12
17
GNDD
18
GNDD
19
V+54
XKP3019-A
1 2
3 4 5 6
7 8 9
10 11 12
13 14 15 16 17 18 19
A
52151-0410
1
2
3
4
52492-1320
1
2 3 4 5 6 7 8 9
10 11
12 13
52492-1320
1
GNDS
2
ADIN
3
ADCT
4
V+3R3E
5
MT_LED
6
V+12
7
VINYL_LED
8
V+5
9
KEY0
10
GNDD
11
TCH/REL
12
EJECT_LED
13
EUP_LED
SHEET SW
(DSX1078-)
PH-PH CABLE
PF04PP-Q17
L=175mm
FFC
DDD1449-
REVERSE FACE
L=142mm
FFC
DDD1490-
SAME FACE
L=165mm
FFC
DDD1501-
SAME FACE
L=90mm
FFC
DDD1489-
REVERSE FACE
L=60mm
JUMPER WIRE
D20PYY0705E
L=50mm
JUMPER WIRE
D20PYY0405E
L=50mm
EARTH LEAD UNIT
L=70
DDF1032-A

20 CDJ-900
12 3 4
A
B
C
D
E
F
12 3 4
4.2 SIGNAL BLOCK DIAGRAM
ASRV ASSY
B
SLMB ASSY
O
ACIN ASSY
NPOWER
SUPPLY
ASSY
EJACB ASSY
CMAIN ASSY
D
USBA ASSY
USB High/Full Speed
CPU_TXD2
CPU_RXD2
CPU_SCK2
MII
LPS1,
LPS2 8bit
LO-,
LO+
16bit
16bit
16bit
JA8802
CONTROL OUT
32bit
JA8803
DIGITAL OUT SPDIF SPDIF_OUT
JA8801 32bit
R OUT ROUT
L OUT LOUT
ST1+/-,
ST2+/-
LOAD
FEDRV
TEDRV
TE
FE
RFENV
Q506
IC7004
FEP
SODC
IC7008
DRIVER
IC7002
INSW
IC7006
FLASH
128kB
IC8801
04SD PICK UP ASS'Y R
(OWY8036- /XDP/5)
SPINDLE MOTOR 04
(VXM1112-)
M
STEPPING
MOTOR
(VXM1113-)
M
DC MOTOR
(DXM1230-)
CN7002
CN8901 CN7004
CN7001
CN7003
SLOT IN MECHA ASSY (DXM1230)
2
5
2
5
12 12
IC8802
57
57
IC8803
21
6
7
IC3003
DAC
8
11
IC501
DSP
I2S
SPI
A6
IC101
MAINCPU
POWER SUPPLY
POWER SUPPLY
MAINSYSTEM BUS
( CS0 : 16bit, CS1,3 : 32bit )
IC1304
ETHER
POW
14
18
29
89
111
109
112
67
120
119
46
5
4
175,
176
CN9901
CN1305
CN8801 CN501
CN1303
CN7005
CN7301
CN3CN2
CN7302 CN3001
JA9901
USB_A
(TOP)
ATAPI