7-8
7-8
CIRCUIT DIAGRAM - AMP BOARTD
2092 pins5
power on
power off
H
L
TO SMPS PB
HI
-L
improved PS auto protect(standby)
standy=2v8
power on=0.3v
(TO MCU PWR_DET)
73V
OVP
LVP
FO
R
M
AI
N
-S
PK
JA
CK
AMP_ON=H
standy=0V
power on=5V
250k-300k(2)
250k-300k(1)
seclusion
osc 500k or 600k
inverted for 250k or 300k
COG CAP
A
B
C
IC + 5V
A=H,B=L,C=H
A=L,B=H,C=L
reduce noise cap
big noise
adjustment input signal
R
154/
C
152/
C
7244
adj
ust
osc
R148/R104 OCP(Q5법
직
괏
빱
)
R98/R99 OCP(Q2법
직
괏
빱
)
R142/R147 increase for EMI,
but efficiency low,
heat too increase
COG CAP
IC Pin5 = 5V
reduce noise cap
big noise
adjustment input signal
R
154/
C
152/
C
7244
adj
ust
osc
R148/R104 OCP(Q5법
직
괏
빱
)
R98/R99 OCP(Q2법
직
괏
빱
)
R142/R147 increase for EMI,
but efficiency low,
heat too increase
OSC-5v
OSC
AMP_CLK1
DCP獨
된
50A
+
-
+
-
change
osc
freq.
- 5V
+5V
To heatsink
R7773,R7775
C7102,C292
10N
68OP
3N9
222
1kHz 롸
틉
pins1 pins2
AM_HOP
Working OSC
H
L
H
BC857 500K
H
L
BC847 600K
L
럽
宮
포
C7772
C7774
273
NTC:
10
0C=
25
R
H=work
L=power off
375W
FO
R
N
X55
625W
FO
R
N
X77
39V
73V
37
5W
F
O
R
N
X5
5
62
5W
F
O
R
N
X7
7
39V
HI
-R
change to 1k
change to 1k
change to 470p
change to 470p
NX550 47K
NX550 10K
NX550 10K
2kHz 롸
틉
2.5kHz 롸
틉
47OP
182
2014-11-13
nx550 3k9
nx550 6k2
nx550 51k
nx550 7k5
nx550 2k7
Pllug and unplug AC cord for backup -5V
Pllug and unplug AC cord for 5V
Pl
lu
g
and
unpl
ug
AC
c
or
d
fo
r backup
12V
1 VAA
2 GND
3 IN-
4 COMP
5 CSD
6 VSS
7 VREF
8 OCSET
9
TD
10
COM
11
LO
12
VCC
13
VS
14
HO
15
VP
16
CSH
U19
IR
S2092(
SO
P16)
D
S
G
Q2
IRFB4227PBF
D
S
G
Q5
IRFB4227PBF
L715
FB600R/1A
+
C7
08
470U
/1
00V
R7
01
30K
R7
02
30K
+
C701
1500U/100V
+
C7
02
1500U
/100V
C7
04
224/
250V
C7
03
224/
250V
R708
10R0.5w
R706
10R0.5w
L714
100MHZ/80R
R7155
10R0.5w
+
C706
100u/10V
R707
10R0.5w
+
C7
07
470U
/1
00V
L713
100MHZ/80R
R705
10R0.5w
+
C7
10
470U
/1
00V
R709
10R0.5w
+
C7
09
470U
/1
00V
L716
FB600R/1A
L717
100MHZ/80R
L718
100MHZ/80R
C764
150P250V
C7
62
330P/
630V
R7
50
10R
/0.
5W
C7
67
104/
100V
R7
52
22R
/3W
C7
69
330P/
630V
R7
53
2K2/
3W
1
2
3
4
5
6
7
8
9
10
11
12
13
14
U706
74HCTO4
Y7011 500KH
Z
C737
102
R7
36
47K
C7
38
102
R739
47K
Q701
BC857
R7
40
47K
R741
10K
R735
1K
C7
40
102
R742
6.8K
R738 1M
R7
44
NC
R7154
47K
R7
37
10K
C739
33P
Y702
600KHZ
C7
42
100P
R7
33
10K
R7
34
1K
+
C735
220u/16V
C7
36
104
C7
41
100P
C731
222
C734
102
C7
18
1U
R7
16
47K
R7151
1K
R719
*47K
R723
4K7
R7
15
4K7
R717
2K2
R721
4K7
R722
4K7
Z701
5V6
D7
03
SO
D123
D704
SOD123
C7
66
474/
400V
Q702
BC847
Q704
BC847
Q703
BC847
D7
01
1N
40
04
D
702
1N
4004
+
C7
25
100u/
16V
C728
104
C7
26
104
+
C727
100u/16V
C719
104
R7
12
68k
R7
13
68k
Q706
Q705
+
C7
15
22u/
100V
R7
55
220k
R7
54
10R
/0.
5W
Z702
5V6
C729
104
C730
102
L721
FB600
L722
FB600
R747
10R
R748
4R7
R745
10R0.5W
R746
4R7
CN701
8PI
N
S
3.
96x180C
C716
104
R7
14
47K
D706
BAS316
R724
4K7
R704
10R0.5w
L712
100MHZ/80R
L711
100MHZ/80R
R703
10R0.5w
+
C7
11
470U
/1
00V
+
C7
13
470U
/1
00V
+
C7
12
470U
/1
00V
+
C7
14
470U
/1
00V
R7
11
10K
L719
100MHZ/80R
L720
100MHZ/80R
L724
FB600R/1A
L723
FB600R/1A
+
C7239
100u/10V
C7242
102
C7244
222
R7
15
6
1K8
C7263
33P
C7
26
5
153/
250V
C7
26
4
153/
250V
C7
26
6
104
C7
26
7
104
C7
26
8
153/
250V
C7
26
9
153/
250V
C7
27
0
153/
250V
C7
27
1
153/
250V
C7
27
2
153/
250V
C7
27
3
153/
250V
C7
27
4
153/
250V
C7
27
5
153/
250V
C7
27
6
104
C7
27
7
104
C7
27
9
102
C7
28
0
102
C7
28
1
102
C7
28
2
10
2
C7
28
3
102
C7284
102
C7
28
5
102
P1
P2
P4
P11
R731
220
C8929
222
R7
16
3
1K8
Q708
BC857
R7
15
9
NTC-
47
K
C8
93
0
10U
/25v
R7
15
8
22K
Q707
BC847
R7
16
6
NC
R7
16
1
1K
R7165
1K
R7
16
7
NC
R7
16
0
1K
C8
93
1
104
P37
P34
P35
P36
G1
+
C43
100u/16V
+
C44
100u/16V
+
C45
100u/16V
+
C68
100u/16V
C7
1
153
C7
2
153
C7
9
153
C8
0
153
IC5
CJ7905
R96
22R/0.5w
R97
22R/0.5W
R7729
4K7
R7728
4K7
R7723
100K
C7774
1N5
C7775
470P
R7720
100K
C7772 1N5
C7773
470P
R
7721
100K
R
7722 100K
1
A-
O
2
A-
IN
3
A+
IN
4
GN
D
5
B+
IN
6
B-
IN
7
B-
O
8
VCC
U1
03
D
4556
2-
18V
R7719
10R
C7777
104
C7776
104
R7724
10R
R98
8K2
R9
9
1K8
R102
4R7
R103
10R
R104
8K2
R148
2K
R150
10K
R152
75K
R153
68K
R
154
330R
C152
222
R156
1K1%0.25W
R163
*120K1%
R1
64
68K
C221
10U/25v
R178
100R
R3
99
47K
R4
00
10K
R4
05
100K
Q25
2N5551
R406
10K
Q26
2N5551
R4
07
10K
Z2
47V
R4
09
47K
C2
22
104
R411
47K
R412
3K/1%
R413
330R
1 1A
2 GND
3 2A
4
2Y
5
VCC
6
1Y
U22
74HC2G04-SOT6
R414
100R
R415
10K
C224
68P
C2
25
104
R417
47R
R418
47R
C2
26
102
R4
19
100K
R420
10K
C228
68P
R488
330R
C2
77
102
R4
89
100K
R503
47K
R504
47K
R505
47K
1
Q1
2
Q1
~
3
CP1
4
CD1
5
D1
6
SD1
7
GN
D
8
SD2
9
D2
10
CD2
11
CP2
12
Q2
~
13
Q2
14
VCC
U3
04
HEF4013
C3427
104
C98
22U/25V
C1
00
10U
/25V
C1
04
10/
10V
C1
08
10U
/10V
R2
4
330R
C1
23
22U
/100V
Z5
15V
C1
24
470U
/2
5V
IC4
SA1117-5V
LT8
6TS:6TS
1 VAA
2 GND
3 IN-
4 COMP
5 CSD
6 VSS
7 VREF
8 OCSET
9
TD
10
COM
11
LO
12
VCC
13
VS
14
HO
15
VP
16
CSH
U1
IR
S2092(
SO
P16)
D
S
G
Q1
IRFB4227PBF
D
S
G
Q3
IRFB4227PBF
C2
150P250V
C3
330P/
630V
R1
10R
/0.
5W
C4
104/
100V
R2
22R
/3W
C5
330P/
630V
R3
2K2/
3W
D1
SO
D123
D2
SOD123
C6
474/
400V
D4
1N
40
04
D5
1N
4004
R4 220k
R5
10R
/0.
5W
R6
10R
R7
4R7
R8
10R0.5W
R9
4R7
D6
BAS316
R1
1
10K
C7
102
C8
222
R12
8K2
R1
3
1K8
R14
4R7
R15
10R
R16
8K2
R17
2K
R18
10K
R19
75K
R20
68K
R2
1
330R
C10
222
R22
1K1%0.25W
R23
*120K1%
R2
5
68K
C11
10U/25v
R26
100R
C12
22U/25V
C1
3
10U
/25V
C1
4
10U
/10V
C1
5
10U
/10V
C1
8
153/
16V
C3
5
103/
25V
C5
4
103/
25V
R79
3K/1%
C5
9
224/
250V
C6
0
224/
250V
C6
1
224/
250V
C6
2
224/
250V
C6
3
102/
250V
C6
4
102/
250V
J6
J7
C7
5
224/
250V
C7
6
224/
250V
C7
7
224/
250V
C7
8
224/
250V
P26
P27
P28
D17
SOD123
D18
SOD123
D19
SOD123
D20
SOD123
P22
C9
102/
250V
C2
6
102/
250V
C3
3
102/
250V
C5
3
102/
250V
C8
1
102/
250V
C8
2
102/
250V
D27
SOD123
D28
SOD123
D29
SOD123
D30
SOD123
C227 4.7uF
C278 4.7uF
C7771 10UF
C7770 10UF
Z3
47V
R81
470R
C94
220P
R82
470R
C95
220P
P23
C99
102
C101
NC
P46
L701
L702
2
E
1
B
3
C
Q1
0
2SD
882SL
R90
NC
R91
NC
R9
4
0R
C8
7
220P
R95
0R
C92
220P
R100
NC
R101
NC
1
2
3
4
LT1
6TS:6TS
C1
09
22U
/100V
J1
J2
+
C114
100u/16V
+
C115
100u/16V
12345678
9
CN702
9PX2
.0
X1
80
C
W
/L
O
CK
D4
1
NC
D4
2
NC
D3
1
NC
D3
2
NC
D3
3
NC
D3
4
NC
D3
5
NC
D3
6
NC
D3
7
NC
D3
8
NC
D3
9
NC
D4
0
NC
R6
1
NC
R7
8
NC
G2
G3
R1
09
750/
3w
R111
30k
R112
1K/1W
D26
SOD123
R114
1K5
R115
10K
Q13
BC847
D43
SOD123
R113
30k
R116
1K/1W
D45
SOD123
R117
1K5
R118
10K
D46
SOD123
Q12
BT5401
Q14
BT5401
Q11
2N5551
D4
7
SO
D123
D4
8
SO
D123
Z1
47V
Z44
12V
Z25
12V
R1
19
30k
D25
SOD123
R121
NC
R122
NC
Q9
NC
D44
SOD123
Q15
2N5551
Z4
12V
C7
17
22U
C1
02
104
C1
03
104
R120
0R
AM_HOP
[1]
DCOFFSET
[1,2]
-7
5V
[1
,2
]
DCOFFSET-CTL
[1]
DCO
FFSET
[1
,2
]
+12V
[1,2]
+75V
[1,2]
HI_L+
[2]
LEFT
[2]
AMP-ON [1]
-12V [1,2]
DCOFFSET-CTL [1]
AM_HOP [1]
+7
5V
[1
,2
]
AMP-ON
[1]
+1
2V
[1
,2
]
+V
B3
[1
,2
]
+VB1
[1]
+VB2
[1]
+VB4
[2]
+VB3
[1,2]
-VB1
[1]
-VB2
[1]
-VB3
[2]
-VB4
[2]
+75V
-75V
-VE1
[1]
-VE2
[1]
-VE3
[2]
-VE4
[2]
-VSS1
[1]
-VSS2
[1]
-VSS3
[2]
-VSS4
[2]
+VAA1
[1]
-12V
[1,2]
RIGHT_IN
[2]
LEFT_IN
[2]
+12V
[1,2]
-75V
[1,2]
+75V
[1,2]
-VE1
[1]
+VB1
[1]
+VAA1
[1]
-VSS1
[1]
SD2
[1]
SD1
[1]
SD3
[1,2]
SD4
[1,2]
SD1 [1]
-5
V
+5
V
[1
,2
]
-75V
[1,2]
+5V
[1,2]
AM
P_
CLK1
+VAA4
[2]
+VAA3
[2]
+VAA2
[1]
-VB1
[1]
SD2 [1]
SD3 [1,2]
SD4 [1,2]
500K-600K(2)
500K-600K(1)
OSC1
OSC2
[2]
DCO
FFSET
[1
,2
]
HI_R-
[2]
-VE2
[1]
+VB2
[1]
+VAA2
[1]
-VSS2
[1]
-VB2
[1]
SD2
[1]
AMP_CLK2
[1]
HI_L-
[2]
HI_R+
[2]
AMP_CLK2
[1]
+7
5V
[1
,2
]
-7
5V
[1
,2
]
+7
5V
[1
,2
]
-7
5V
[1
,2
]
HI_RIN
[1]
RIGHT
[2]
GND
+12V
[1,2]
HI_RIN
[1]
HI_LIN
[1]
HI_LIN
[1]
AM_HOP
DCOFFSET-CTL
-12V
AMP-ON
GND
LEFT
RIGHT
+75V
[1,2]
+12V
-7
5V
[1
,2
]
-58V
-5
8V
-75V
Summary of Contents for NTX600
Page 28: ...4 1 4 1 BLOCK DIAGRAM NFC ANT H P AMP Sc1408 HEADPHONE ...
Page 29: ...WIRING DIAGRAM 5 1 5 1 ...
Page 40: ...7 10 7 10 CIRCUIT DIAGRAM AMP BOARTD ...
Page 41: ...7 11 7 11 PCB LAYOUT MAIN BOARD ...
Page 42: ...7 12 7 12 PCB LAYOUT MAIN BOARD ...
Page 43: ...7 13 7 13 PCB LAYOUT MCU BOARD ...
Page 44: ...7 14 7 14 PCB LAYOUT AMP BOARD ...
Page 45: ...8 1 8 1 EXPLODED VIEW ...