Pioneer DJM-900NXS Service Manual

40
DJM-900NXS
1
2 3 4
A
B
C
D
E
F
1
2 3 4
5.3 INFORMATION ON POWER DIAGNOSTICS
G
MAIN ASSY
A
INPUT ASSY
J
SEND ASSY
K
PNLA ASSY
Q
PNLB ASSY
L
CDCB ASSY
Observing
Point
Name Remarks
Normal Voltage
Level
Possible defective point when
a voltage error is generated
Standby State
(Power SW ON)
1 VMUTE MUTE CIRCUIT(Q2603etc) OFF
2
V+18VMUTE
(V+18VMUTE_*)
MUTE CIRCUIT(Q2603etc) OFF
3
V+15A
(V+15A_*)
OUTPUT CIRCUIT(MAIN ASSY),
INPUT CIRCUIT(INPUT ASSY)
OFF
4
V-15A
(V-15A_*)
OUTPUT CIRCUIT(MAIN ASSY),
INPUT CIRCUIT(INPUT ASSY)
OFF
5
V+5A
(V+5A_*)
OUTPUT CIRCUIT(MAIN ASSY),
INPUT CIRCUIT(INPUT ASSY)
OFF
6 +12V Switched Before the ICP ALL DIGITAL CIRCUIT OFF
7
V+12D
(V+12D_*)
After the ICP ALL DIGITAL CIRCUIT OFF
8
V+12STBY
(V+12E)
MAIN_CPU(IC2011),
RESET IC(IC2010)
ON
9 V+9HP HP CIRCUIT OFF
10 V-9HP HP CIRCUIT OFF
11
V+3R3E
(V+3R3E_*)
MAIN_CPU(IC2011),
RESET IC(IC2010)
ON
12
V+5D
(V+5D_*)
FL.,LED
,MIDI,DIGIT
AL OUT OFF
13
V+3R3D
(V+3R3D_*)
ALL DIGITAL CIRCUIT OFF
14
V+1R2D
(V+1R2D_*)
FPGA(IC2214),DSP(IC701),Ether
UCOM(IC501),USB UCOM(IC1801)
OFF
15
V+2R5D
(V+2R5D_*)
SRC,USB UCOM(IC1801) OFF
16 V+34D_1 Before the TrSW FL. OFF
17 V+34D After the TrSW FL. OFF
18 V+5VBUS
Power of the connected PC USB communication failure ON
19 V+15A After the ICP INPUT CIRCUIT OFF
20 V-15A After the ICP INPUT CIRCUIT OFF
21 V+5A INPUT CIRCUIT OFF
22 V+12D After the ICP
INPUT CIRCUIT RELAY(RY4201,
4601,5001,5401)
OFF
23 V+5D MIDI OUT OFF
24 V+3R3D DIGITAL CIRCUIT OFF
25 V+15A_SE After the ICP SEND OUTPUT CIRCUIT OFF
26 V-15A_SE After the ICP SEND OUTPUT CIRCUIT OFF
27 V+5A_SE SEND_DAC(IC6401) OFF
28 V+5D_LED FL.,LED, OFF
29 V+12STB LED(X-PAD,LFO FORM) ON
30 V+3R3D FL.,SUB UCOM(IC6601) OFF
31 V+34D FL. OFF
32 V+3R3D_REFA CH1-4 FADER,CROSS FADER OFF
33 V+3R3D_REFA CROSS FADER OFF
34
ex)V+5A_* • • • • • V+5A_BO,V+5A_HP,V+5A_M1 etc • • •
V+3R3 CDC SENSOR(IC3601) OFF
14.3-19.9
14.3-19.9
14.2-15.8
-15.8 - -14.3
4.7-5.3
11.3-12.7
11.3-12.7
11.3-12.7
8.55-9.45
-9.4 - -8.6
3.15-3.45
4.8-5.3
3.15-3.45
1.1-1.27
2.37-2.62
31-36
31-36
4.75-5.25
14.2-15.8
-15.8 - -14.3
4.7-5.3
11.3-12.7
4.8-5.3
3.15-3.45
14.2-15.8
-15.8 - -14.3
4.7-5.3
4.8-5.3
11.3-12.7
3.15-3.45
31-36
3.15-3.45
3.15-3.45
3.15-3.45

Pioneer DJM-900NXS Specifications

General

Sample rate	96 kHz
Frequency range	20 - 20000 Hz
Channels quantity	4 channels
Digital sound processing	24 bit
Number of EQ bands per channel	3
Line Signal-to-Noise Ratio (SNR)	107 dB
Total Harmonic Distortion (THD)	0.004 %
Microphone in	Yes
Line inputs (RCA)	6
Phono inputs (RCA)	2
USB 2.0 ports quantity	USB 2.0 ports have a data transmission speed of 480 Mbps, and are backwards compatible with USB 1.1 ports. You can connect all kinds of peripheral devices to them.
Digital audio coaxial out	1
Power consumption (typical)	42 W