NAD c390dd Service Manual page 60

SCHIMATIC DIOGRAM
AMP-1
C12
PWMCKL
1uF
GND
R13
FB_CHL
51k
R20
15R
C23
47uF
R26
REF0_LA
6k65
R28
S2O_A
REF1_LA
6k65
R32
REF2_LA
107k
R130
REF0_LB
6k65
R132
REF1_LB
6k65
R134
REF2_LB
107k
C34
1nF
GND
Feedback processor
R1
S2O_A
150R
C7
10pF
C9
C108_CHL
10pF
C10
R3
100pF
R5
150R
1k2
GND
R7
N5V
3k3
C14
270pF
A5V N5V
C16
1
R9
C0N5
2
C0P5
3
C18
C0S2PCK
750R
390pF 4
C0S2I
470pF
5
R14
S2O_A C0S2O
6
C0S1O
7
C0S1F
4M7
8
C0S1R
9
C20
C0RGND
10
C0RP3V3
1nF
GND GND
A3V3
R22 R23
C24
1M 1M
1uF
C26
4u7F R30
C195
C29
51k
4u7F
10nF
GND
GND
GND
R148 R149
75R 0R
No Fit/Solder Blob
GND
C143
1nF
R2
S2O_B
150R
C6
10pF
C8
C108_CHR
10pF
C11
R4
100pF
150R
GND
GND
A5V A5V
N5V
U1
ZXCZA200JC40TA
N5V A5V
30
R10
C1N5
29
C1P5
28
C19
C1S2PCK
750R
27
C1S2I
470pF
26
C1S2O S2O_B
25
C1S1O
24
C1S1F
23
C1S1R
22
C1RGND
21
C21
C1RP3V3
1nF
GND
GND
A3V3
R24
C25
1M
1uF
R29
C196
51k
C31
A3V3
4u7F
10nF
GND
C32
4u7F
R33 R34 R36 R35
33R 33R 33R 33R
GND
GND
N5V
C1
4u7F
C3
4u7F
C13
R6
PWMCKR
1k2
1uF
R8
3k3
C15
270pF
GND
C17
390pF
R15 R16
FB_CHR
4M7 51k
R19
15R
C22
47uF
R21
R25
REF0_RA
6k65
1M
R27
C27
REF1_RA
4u7F
6k65
S2O_B
R31
REF2_RA
GND
107k
R129
REF0_RB
6k65
R160 R163
R131
75R 0R
REF1_RB
No Fit/Solder Blob
6k65
R133
Sch REF2_RB
107k
GND
C142 C33
1nF 1nF
GND
A5V
C2
4u7F
C4
4u7F
C5
4u7F
GND