NAD C521i, Service Manual

Page: 14 / 33

15 16
SCHEMATIC DIAGRAM
DISPLAY
SL+
1
SL-
2
RCIN1
3
SRDR
4
SFDR
5
VREFI
6
VREFO
7
GND
8
FRDR
9
FFDR
10
RCIN2
11
FCS+
12
FCS-
13
GND1
14
MUTE
15
TRK+
16
TRK-
17
RCIN3
18
TFDR
19
TRDR
20
VCC
21
VCC1
22
VBIN
23
SPDR
24
VBIN1
25
SP-
26
SP+
27
GND2
28
GND
29
GND
30
U201
BA6392
SQSO
1
SQCK
2
XRST
3
SYSM
4
DATA
5
XLAT
6
CLOK
7
SENS
8
SCLK
9
VDD
10
ATSK
11
SPOA
12
SPOB
13
XLON
14
WFCK
15
XUGF
16
XPCK
17
GFS
18
C2PO
19
SCOR
20
COUT
21
MIRR
22
DFCT
23
FOK
24
LOCK
25
MDP
26
SSTP
27
SFDR
28
SRDR
29
TFDR
30
TRDR
31
FFDR
32
FRDR
33
VSS
34
TEST
35
TES1
36
XTST
37
VC
38
FE
39
SE
40
TE
41
CE
42
RFDC
43
ADIO
44
AVSS0
45
IGEN
46
AVDD0
47
ASYO
48
ASYI
49
BIAS
50
RFAC
51
AVSS3
52
CLTV
53
FILO
54
FILI
55
PCO
56
AVDD3
57
VSS
58
VDD
59
DOUT
60
LRCK
61
PCMID
62
BCK
63
EMPH
64
XVDD
65
XTAI
66
XTAO
67
XVSS
68
AVDD1
69
AOUT1
70
AIN1
71
LOUT1
72
AVSS1
73
AVSS2
74
LOUT2
75
AIN2
76
AOUT2
77
AVDD2
78
RMUT
79
LMUT
80
U301
CXD3017Q
R201 4K7
R202 1K
R203 1K
R204 1K
R205 1K
R206 1K
R207 1K
R208 1K
R209 1K
R210 1K
R211 1K
R212 100K
R213 10K
R214 8K2
R215
4R7
R216 0R
R217
1K
R218 15K
R219 15K
R220 100K
R222 0R
R223 33K
R224
10K
R225 100K
R226
1M
R227
100
R228
3K3
R229
3K3
R230
10K
C207 0.1u
C208
0.1u
C209
1500p
C210
0.1u
C211
27p
C212
27p
C214 470p
C215 470p
C213 0.1u
XLAT
DATA
SYSM
XRST
SQCK
SQSO
/SQSO /SQCK /XRST /SYSM /DATA /XLAT /CLOK /SENS /SCLK /GFS /SCOR
/SQSO
/SQCK
/XRST
/SYSM
/DATA
/XLAT
/CLOK
/SENS
/SCLK
/GFS
/SCOR
V3V6
C201
220p C202
220p C203
0.01u C204
220p C205
220p C206
330p
CLOK
SENS
SCLK
GFS
SCOR
CLOK
SENS
SCLK
GFS
SCOR
V3V6
VC
SFDR
SFDR
SRDR
SRDR
TFDR
TFDR
TRDR
TRDR
FFDR
FFDR
FRDR
FRDR
SPDR
SPDR
VC
VC
C229
470U/16V
TE
SE
FE
FE
SE
TE
C217
0.1u
C216
0.01u C219
0.47u
V3V6
C218 100p
V3V6
C221
103K
RFDC
RFAC
C220
0.47u
C223
1500p
V3V6
C222
0.1u
TP214
AGND
EMPH
BCK
PCMD
LRCK
XLAT
DATA
SYSM
XRST
SQCK
SQSO
RFDC
RFAC
1
2
3
4
5
6
M105
CON6
FCS-
FCS+
TRK-
TRK+
C226
0.33u/50V
D201
1N4001
L201
27uH
VCC
C230
100uF/16V
FCS-
FCS+
TRK-
TRK+
EMPH
BCK
PCMD
LRCK
C227
0.1u
C228
0.1u
CN202
DEBUG
CLKO
DIG-OUT
XRST
D+8V
NOTE: 1. RESISTORS, ARE CARBON FILM 5% 1/8W UNLESS
OTHERWISE SPECIFIED.
2. CERAMIC CAPACITORS, ARE 50V 10%. UNLESS
OTHERWISE SPECIFIED.