Numark MIXTRACK QUAD Service Manual page 14

1 2
+3.3V
A
C11 1uF
C16 0.1uF
U5 CS4344
GND
1 7
SDOUT1 SDIN AOUTL
10
AOUTR
2
BCLK DEM/SCLK
6 C33 10uF,16V
FILT+
3
LRCLK LRCK
4 5 C32 10uF,16V
MCLK MCLK VQ
C30 0.1uF
GND
DAC OUTPUT
Vpp=2.145Vpp
B
MIC INPUT
Vpp=11.5mVpp
+3.3V
C38 1uF
C42 0.1uF
U8 CS4344
C
GND
1 7
SDOUT2 SDIN AOUTL
10
AOUTR
2
BCLK DEM/SCLK
6 C54 10uF,16V
FILT+
3
LRCLK LRCK
4 5 C53 10uF,16V
MCLK MCLK VQ
C52 0.1uF
GND
DAC OUTPUT
Vpp=2.145Vpp
D
1 2
3
R32 7.32k 1%
C37
C15 10uF,16V R23 4.42k 1% R27 15k 1%
C28
1000pF
GND
GND
J3 +4VA
1
2
3
4
S4B-PH-K-S(LF)(SN)
-4VA
GND
From Microphone Board
GND R31 7.32k 1%
C36
C14 10uF,16V R22 4.42k 1% R26 15k 1% 6
-
U10B
5
C27 +
1000pF
GND
GND
INVERTING LPF
Vout = +2.0dBV
G = 1.66 = 4.4dB @ 1kHz
Fc = 48kHz
INVERTING MIX
Vout = +2.0dBV
G=1=0dB
MIC INPUT
Vpp=5.1Vpp
G = 440 = 52.9B @ 1kHz
off board
R30 7.32k 1%
C35 100pF
C13 10uF,16V R21 4.42k 1% R25 15k 1% 2
-
U9A
3
C26 +
1000pF NJM2112
GND
GND
R29 7.32k 1%
C34
GND C12 10uF,16V R20 4.42k 1% R24 15k 1% 6
-
U9B
5
C25 +
1000pF
GND
GND
INVERTING
CUE OUT
INVERTING LPF
STAGE
Vout = +2.0dBV
G = 1.66 = 4.4dB @ 1kHz
INVERTING
Fc = 48kHz
HEADPHONES
DRIVER
3
4 5
100pF
R41 10K 1%
2
-
1 R40 10K 1% 13
U10A -
3 14
+ U10D
12
NJM2112 +
NJM2112
GND
R57
2.55k 1%
R56
2.55k 1%
100pF R38 10K 1%
7 R39 10K 1% 9
-
8
U10C
10
NJM2112 +
NJM2112
GND
MMBD4148
MASTER OUT
1
+4VA
J2
1
2
3
4
5
6
7
8
100pF
-4VA
GND
7
NJM2112
9 13
- -
8 14
U9C U9D
10 12
+ +
NJM2112 NJM2112
+4VA
C45
0.1uF U10E
NJM2112
off board
-4VA
Approval
4 5
6
AUDIO MUTING CIRCUIT
+4VA
D6
D7
MMBD4148
R71
475k 1%
R70 0 ohm
Q8
MBT4403
C73 C72
10uF,16V 10uF,16V
R72
10K
GND GND
-4VA
DECOUPLING
C44
0.1uF U9E
NJM2112
Check Design REV DATE Description
6
7 8
R66 1k 1%
Q7
2SD2114K
GND
R58
100 ohm 1%
J5B
C69 4
S3
100pF
A
3
RJ2008HP-11F15A
GND
GND
R65 1k 1%
Q6
2SD2114K
GND
R55
100 ohm 1%
J5A
C68 2
S2
100pF
1
RJ2008HP-11F15A
GND
GND
B
C
D
Title:
NKC9 IO PCB(ANALOG)
Size Number Revision
PC12C014A 0
A2
2 2
Date : 2012/12/3 Sheet of
File Name: ANALOG.SchDoc Design By :
7 8