NAD T737, Service Manual

Page: 53 / 114

SCHEMATIC DIAGRAM (VIDEO ENCODER PART)
3-52 3-53
VD
D
_IO
TE
S
T
0
TE
S
T
1
Y0
Y1 Y2 Y3 Y4 Y5 VD
D
D
GND
Y6 Y7
TE
S
T
2
TE
S
T
3
C0
C1
C2
ALSB/SPI_SS
SDA/SCLK
SCL/MOSI
P_HSYNC
P_VSYNC
P_BLANK
C3
C4
C5
C6
C7
CLKIN_A
EXT_LF2
PGND
EX
T
_
LF
1
PV
D
D
CO
M
P
2
RS
ET
2
DA
C
F
DA
C
E
DA
C
D
AG
N
D
VA
A
DA
C
C
DA
C
B
DA
C
A
CO
M
P
1
VR
E
F
Rse
t1
/S_
B
LA
NK
S_VSYNC
S_HSYNC
TEST4
TEST5
S0
S1
S2
VDD
DGND
S3
S4
S5
S6
S7
CLKIN_B
GND_IO
PS1
SCIN
V+1
N.C
MIXSW
VIN
GND1
SYIN
CBSW
YIN
V+2
GND2
N.C
PBIN
PS2
PRIN
LPFSW
PROUT
GND3
N.C
PBOUT
V+3
YOUT
GND4
SYOUT
V+4
VOUT
N.C
SCOUT
SDCOUT
S2
S1
*OPTION
44 DAC A Y
43 DAC B Pb
42 DAC C Pr
39 DAC D CVBS
38 DAC E S-Y
37 DAC F S-C
Do not use
CVBS
S-Y
S-C
COMPONENT Y
COMPONENT PB
COMPONENT PR
AIN12
AIN5
AIN11
AG
N
D
AG
N
D
P7
P27
P32
P31
CS/HS
INT
P15
P14
DVDDIO
DGND
P29
P28
SCLK2
SFL/SYNC_OUT
DGND
DVDD
P12
P13
DGND
DVDDIO
P11
SDA2
P8
P9
P10
P6 P5
P4
P2
6
P2
5
P2
4
P2
3
DV
DD
XT
A
L
XT
A
L1
LLC
1
D
C
LK
_IN P2
1
P2
2
PV
D
D
PV
D
D
ELP
F
P2
0
P0 P1 P2 P3
DG
N
D
FB
SOG
AIN7
AIN1
AIN8
AIN2
AIN9
AIN3
TEST1
AGND
CAPY1
CAPY2
AVDD
REFOUT
CML
AGND
BIAS
CAPC1
CAPC2
TEST0
AIN10
AIN4
HS_
IN
VS
_IN
P3
9
P4
0
SC
LK
1
SD
A
A
LSB
AI
N
6
SO
Y
RES
ET
D
E
_IN
P1
7
P1
8
P1
9
DV
DD
D
GND
P3
7
P3
8
P1
6
P3
6
P3
5
P3
4
FI
EL
D/
DE
VS P3
3
FOR ADV7403
FO
R
A
D
V
7403
CVBS IN
Pr IN
S-Y IN
Pb IN
S-C IN
Y IN
VID
E
O S
W
P
A
R
T
1 2 3 4 5 6 7 8 9
10 11 12 13 14 15 16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
IC112
R1118
4.7K
R1117
10
R1119
10
C1159
0.1uF
C1160
22/6.3V
C1158
22/6.3V
C1157
0.1uF
C1162
22/6.3V
C1161
0.1uF
C1166
0.
1u
F
C1165
22/
6.
3V
R
1127
3.
9K
R1120
220
C1163
2200P
C1167
2200P
C1164
0.
1u
F
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17 1
6
1
5
1
4
1
3
1
2
1
1
1
0
987654321
IC113
NJM2566V
C1175
0.1uF
C1177
1uF
C1179 1uF
C1181 0.1uF
C1184
0.1uF
C1185
0.1uF
C1170
22/6.3V
R1131
10K
R1130 10K
R1129
10K
C1176
0.
1u
F
C1183 0.
1u
F
C1172
0.1uF
C1171
0.1uF
C1174
22/
6
.3V
C1173 22/
6.
3V
8
7
6
5
4
3
2
1
RN114
33ohm (1005SIZE X 4),1/16W
R
1143
300
R
1142
300
R
1140
300
R
1144
300
R
1139
300
R
1141
300
R1132
75
R1133
75
R1134
75
R1135
75
R1136
75
R1137
75
C1182
10/16V
C1180
10/16V
C1178
10/16V
R
1122
4.
3k
(1
%
)
R
1125
6.
8K
(1%
)
1234 5678
RN107 10X4
1234 5678
RN108
10X4
1 2 3 4
5 6 7 8
R
N
111
10X
4
1 2 3 4
5 6 7 8
RN
1
1
0
10X
4
123
4
5678
RN109
10X4
1
234
5678
RN113
10X4
1234 5678
RN112 10X4
R
1138 10K
L1004
C1190 47/
25V
C1193 47/
25V
2
1
3
GND
Out In
IC115 3.3V
C1191
0.
1u
F
C1192
0.
1u
F
L1003
C1156
12nF
C1155
150nF
R1115
150
C1168
22/6.3V
C1169
0.1uF
L1006
C1194 47/
25V
C1197 47/
25V
2
1
3
GND
Out In
IC116
1.8V
C1195
0.
1u
F
C1196 0.
1u
F
L1005
3
2
1
D1005 CVDAD1580BRT
R
1123 op
en
R
1124 op
en
R1114
20
R
1128 220
R1121
3.9K
100
99 98 97 96 95 94 93 92 91 90 89 88 87 86 85 84 83 82 81 80 79 78 77 76
75
74
73
72
71
70
69
68
67
66
65
64
63
62
61
60
59
58
57
56
55
54
53
52
51
50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
IC111
R1082
0
R1083
0
C1129
0.
01
C1128
0.
1
C1127 10/
25
C1130
0.1
C1131
0.1
C1132
100/16
C1134 10/50
C1133 0.1
C1135
0.1
C1136 10/50
R1084 2.7K
R1085 2.7K
C1137
0.1
C1138 10/
25
C1139
0.
1
C1140
0.
01
C1120
0.1
C1121
0.1
C1122
0.1
C1123
0.1
R
1079
75
R
1080
75
C1124
0.1
R
1081
OP
E
N
C1125
0.1
C1126
1000P
C1152
0.
1
R
1110
27K
R
1111
1.
8K
C1150
0.082
C1151
0.01
R1
1
0
7
22
R
1106
22
X1001
28.636MHz
R1105
1M
C1148
47p
C1149
47p
C1147
0.
1
R1103
22
R1101
22
1
2
3
4
5
6
7
8
RN105
22X4
R1100
22
R1098 OPEN
R1097 OPEN
C1214
0.1
1
2
3
4
5
6
7
8
RN104
22X4
R1093 0
R1094
22
C1145
0.1
C1146
0.1
R
1087 5.
6K
Q1008
KRC102S
R1086
10K
1 2 3 4
5 6 7 8
RN
1
0
3
22X
4
C1144
0.
1
R
1092
22
R
1091
22
R
1089
100
R
1090
100
R
1088
OP
E
N
C1141
0.1
T106
T107
T101
T102
R
1109
OP
E
N
R1
1
0
8
OP
E
N
C1142 OPEN
C1143 OPEN
R
1104
0
R1102 22
1
2
3
4
5
6
7
8
RN106 22X4
R1099
22
R1096 22
R1095 22
R1116
OPEN
D1003
1SR159-200
D1004
1SR159-200
C1186 47/
25V
C1189 47/
25V
2
1
3
GND
Out In
IC114
5V
C1187 0.
1u
F
C1188 0.
1u
F
R1145 0
R1146 0
R1147 0
R1148 0
R1149 0
R1150 0
C1154
150nF
R1113
150
R1112
20
C1153
12nF
T
103
T104
T105
T1
T2
T3
T4
R1154
0
R1155
0
R1156
75
R1157
0
C1215
0.1uF
C1216 0.1uF
C1217
0.1uF
C1218
0.1uF
C1219
0.1uF
C1220 0.1uF
D1006
1SR159-200
R1170
75
R1171
75
R
1172
75
VDD_3.3VIO
+1
.8
V
_
D
V
V
DVDD_1.8V
AVDD_3.3V
+5VVA
+5VV
PVDD_1.8V
V_G0/YO
V_G1/Y1
V_G2/Y2
V_G3/Y3
V
_
G0
/Y
O
V
_
G1
/Y
1
V
_
G2
/Y
2
V
_
G3
/Y
3
V
_
G4
/Y
4
V
_
G5
/Y
5
V
_
G6
/Y
6
V
_
G7
/Y
7
V_B0/CB0
V_B1/CB1
V_B2/CB2
V_B3/CB3
V_B4/CB4
V_B5/CB5
V_B6/CB6
V_B7/CB7
V_R5/CR5
V_R6/CR6
V_R7/CR7
V_R0/CR0
V_R1/CR1
V_R2/CR2
V_R3/CR3
V_R4/CR4
V_B2/CB2
V_B3/CB3
V_B4/CB4
V_B5/CB5
V_B6/CB6
V_B7/CB7
V_CLK
V_HSYNC
V_HSYNC
V_VSYNC
V_G7/Y7
V_G6/Y6
V_G5/Y5
V_G4/Y4
V_VSYNC
CVBS_INPUT
S-VIDEO_Y_INPUT
S-VIDEO_C_IN
COMPONENT_Y_IN
COMPONENT_PB
COMPONENT_PR
V_SDA
V_SCL
VIDEO_INT
DGND
DGND DGND
V_R4/CR4
V_R5/CR5
V_R6/CR6
V_R7/CR7
V_CLK
V_VSYNC
V_HSYNC
V_R0/CR0
V_R1/CR1
V_R2/CR2
V_R3/CR3
COMPONENT_PR_OUT
COMPONENT_PB_OUT
COMPONENT_Y_OUT
S-VIDEO_Y_OUT
CVBS_OUT
S-VIDEO_C_OUT
V_B1/CB1
V_B0/CB0
V_CLK
DGND
DGND
DEC_RST
DVDD_1.8V
PVDD_1.8V
VDD_3.3VIO
AVDD_3.3V
AVDD_3.3V
PVDD_1.8V
DVDD_1.8V VDD_3.3VIO
DGND
+9VV +5VVA
VGND
VGND
VGND
VGND
VGND VGND
VGND
VGND
VGND
VGND
DGND
DGND
DGND
DGND
DGND
VGND
VGND
DGND VGND
VGND
DGND DGND
DGND
DGND
DGND
A
V
D
D
_3.
3V
P
V
D
D
_1.
8V
A
V
D
D
_
3.
3V
VDD_3.3VIO
LFP_SW
VGND