NAD T737, Руководство по обслуживанию

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SCHEMATIC DIAGRAM (VIDEO PART)
3-50 3-51
COMPONENT Y(PIN3)
H H
L H
L L
COMPOSITE(PIN1)
S-VIDEO_Y(PIN2)
SW1 SW2
COMP1
COMP2
COMP3
SW1 SW2
H H
L H
X L
L L X X H
H H L L X
H H H X L
H L L
H
H
H L H H H
SW4 SW3 SW2 SW1
GAME
DVD
CAB/SAT
AUX
VCR
SW5
* IC1,1,1 SW FORMAT
33P 33P
27P 27P
X701 C702 C701
14.318
17.734
* LC74763M OPTION TABLE
PAL
NTSC
H
L
H
H
L
SW3 SW2 SW1
OSD_S_Y
OSD_CVBS
T_CVBS
T_S_Y
T_S_C
V0
1
VCC
SW
5
VO2
VI
N
5
SW
1
SW
3
VI
N
1
VI
N
4
GND
SW
4
VO3
VI
N
3
SW
2
VS
S
VI
N
2
GAME_Y
GAME_C
GAME_CVBS
FR
O
M
FR
O
N
T
75
6dB
6dB
75
75
6dB
S1(SW1)
S5(SW5)
S4(SW4)
S7(SW2)
S2(SW2)
S6(SW1)
S3(SW3)
VIDEO SW PART
ON
LY
E
U
R
VE
R
.
VSS
Xin1
Xout1
HSYNCOUT
Xout2
VSYNCOUT
notCS
SIN
SECAM
not525/625
notNTSC/PAL
SCLK
not3.58/4.43
notRST
VDD2
CVIN
CVCR
SYNCIN
PDOUT
AMPIN
PDOUT
AMPIN
AMPOUT
FC
VCOIN
VCOOUT
SYNCDET
VDD1
CVOUT
Xin2
COMPO or S-V-Y OSD IN
OSD_DATA
OSD_CLK
OSD_CE1
Y2
Pb2
Pr2
Y1
Pb1
Pr1
CO
M
P
O
N
E
N
T
IN
1
CO
M
P
O
N
E
N
T
IN
2
&
OSD_CLK
OSD_DA
O
S
D
_CL
K
DVD
CAB/SAT
AUX
ONLY
EUR Ver.
CVBS
S-C
S-Y
S-C
S-Y
MONITOR
OUT
VCR_OUT
VCR_IN
S-C
S-Y
S-C
S-Y
S-C
S-Y
V0
1
VCC
SW
5
VO2
VI
N
5
SW
1
SW
3
VI
N
1
VI
N
4
GND
SW
4
VO3
VI
N
3
SW
2
VS
S
VI
N
2
75
6dB
6dB
75 75
6dB S1(SW1)
S5(SW5)
S4(SW4)
S7(SW2)
S2(SW2)
S6(SW1)
S3(SW3)
S-VIDEO_C
V0
1
VCC
SW
5
VO2
VIN
5
SW
1
SW
3
VIN
1
VIN
4
GND
SW
4
VO3
VIN
3
SW
2
VS
S
VIN
2
75
6dB
6dB
75
75
6dB
S1(SW1)
S5(SW5)
S4(SW4)
S7(SW2)
S2(SW2)
S6(SW1)
S3(SW3)
S-VIDEO_Y
Y OUT
Pb OUT
Pr OUT
Y3
Pb3
Pr3
CO
M
P
O
N
E
N
T
IN
1
CO
M
P
O
N
E
N
T
IN
2
&
SW3
SW2
SW1
LFP_SW
SW4
STB
DATA
CLK
Q1
Q2
Q3
Q4
VSS Qs
Qs
Q8
Q7
Q6
Q5
EN
VDD
C.SW2
COMP_SW2
COMP_SW1
EXP_CE
EXP_DATA
EXP_CLK
RESET
EXP_CE
EXP_CLK
EXP_DATA
OSD_CS
EXP2_CE
OSD_CLK
OSD_DATA
STB
DATA
CLK
Q1
Q2
Q3
Q4
VSS Qs
Qs
Q8
Q7
Q6
Q5
EN
VDD
T
O
V
IDEO
EN
C
O
DER P
A
RT
VIDEO_SDA
VIDEO_SCL
VIDEO_INT
S-C
S-Y
MONITOR_OUT
MONITOR_S_Y
MONITOR_S_C
IN
1B
CT
L1
OU
T
1
GND
2
OU
T
2
OU
T
3
CT
L3
IN
3A
IN
3B
GND
3
IN
2A
CT
L2
V+
IN
2B
GND
1
IN
1A
OSD_SYNC
RESET
EXP_CE
EXP_CLK
EXP_DATA
OSD_SYNC
OSD_DATA
OSD_CLK
OSD_CS
OSD_INH
VIDEO_INT
VGND
VGND
VGND
VIDEO_SDA
VIDEO_SCL
+5V
-5V
VGND
+9V
EXP_CE2
EXP_DATA
EXP_CLK
[V
ID
E
O
<
---->
H
D
M
I]
IN
P
U
T
F
R
O
N
T
GAME_L
AGND
GAME_R
P/L ADD
OPEN
1 2 3 4 5 6 7 8
9 10 11 12 13 14 15 16
IC101
C1043 0.
022u
C1044
100/
16V
R1031
1K
C1046
100/
16V
C1045
0.
022u
C1012
10/50
C1011
10/50
C1010
10/50
R
1012
75
R
1011
75
R
1010
75
R
1013
75
R
1014
75
R
1015
75
C1013
10/50
C1014
10/50
C1015
10/50
C1090
56P
C1091
22P
R
1068
120
R
1050 100K
Q1001
R
1063 8.
2K
C1077
33P (E
U
)
C1076
33P (E
U
)
X1003
14.318MHz(EU)
C1094
1/50V
Q1002
KTA1504S
R1065
180
R
1066 2.
7K
C1085 0.
022u
C1093
0.
022u
14 13 12 11 10 9 8
7 6 5 4 3 2 1
IC109
74ACT04MTR
C1080
470/10
C1092
22P
R
1064 10K
R
1061 270
R
1060 2.
2K
C1089
0.1/50
R
1049 100K
C1082
100/
16
C1081
0.
022u
C1086
1/
50
R1056
1K
C1087
1/50
R1057
6.8K
R1055
1K
R1059
39K
C1084
33P
C1083
22P
L1001
5.6uH
R1058
1.5K
R1054
1K
L1002
100uH
C1078
180P
R
1053
1K
R
1052
1K
R
1051
1K
C1079
0.
47/
50
C1074
33P
C1075
33P
X1002
14.318MHz
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16 1
5
1
4
1
3
1
2
1
1
1
0
987654321
IC108
R1153
1K
R1151
1K
R1152
1K
R
1019
75
R
1021
75
R
1023
75
R
1020
75
R
1022
75
C1019
2P
C1023
2P
C1027
2P
C1021
2P
C1025
2P
C1029
2P
R
1024
75
JK104
CJ
J4R
045Z
C1020
10/50
C1024
10/50
C1028
10/50
C1022
10/50
C1026
10/50
C1030
10/50
R
1062
0
C1088
50V/6800p
R1067
150
C1208
100P
C1212
100P
C1039
OP
E
N
C1035
OP
E
N
C1031
OP
E
N
R1027
0
R1029
0
R1025
0
C1032
1000/6.3
C1036
1000/6.3
C1040
1000/6.3
987654321
CN
101
C1003
100/10V
C1002
100/10V
C1001
100/10V
R1003
75
R1002
75
R1001 75
C1007 OP
E
N
R1007
0
1 2 3 4 5 6 7 8
9 10 11 12 13 14 15 16
IC102
C1047
0.
022u
C1048
100/
16V
R1032
1K
C1050
100/
16V
C1049
0.
022u
1 2 3 4 5 6 7 8
9 10 11 12 13 14 15 16
IC103
C1051 0.
022u
C1052
100/
16V
R1033
1K
C1054
100/
16V
C1053 0.
022u
R
1026
75
R
1028
75
R
1030
75
C1033
2P
C1037
2P
C1041
2P
JK105
CJ
J4R
045Z
C1034
10/50
C1038
10/50
C1042
10/50
C1059
0.
1u
F
C1058
0.
1u
F
R
1036
10K
1 2 3 4 5 6 7 8 9 10 11 12
13 14 15 16 17 18 19 20 21 22 23 24
CH
1IN
1
SW
1
CH
1IN
2
SW
2
CH
1IN
3
GND
V+
1
CH
2IN
1
GND
CH
2IN
2
GND CH
2IN
3
CH
3IN
3
GND
CH
3IN
2
V+
1
CH
3IN
1
V+
2
GND
CH
3O
UT
V+
2
CH
2O
UT PS
CH
1O
UT
IC104
C1062
0.
1u
F
C1061
0.
1u
F
C1060
0.
1u
F
C1056
0.
1u
F
C1057
100/
16V
C1055
100/
16V
R1034
4.7
R1035
4.7
19
18
16
17
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
CN
102
1
2
3
4
5
6
7
8 9
1
01
11
21
31
41
51
6
IC106
R1045
100
R1046
100
R1047
100
C1073 10/
50V
R1048
4.7
C1072
470P
C1071
470P
C1070
470P
1234 5
678
RN101
100X4
1 2 3 4
5 6 7 8
RN
1
0
2
100X
4
1
2
3
4 5678
IC107
H
V
IN
JM
2535M
1 2 3 4 5 6 7 8
9 10 11 12 13 14 15 16
IC110
NJM2285
C1096
0.
022u
C1095 47/
16V
1
2
3
4
5
6
7
8 9
1
01
11
21
31
41
51
6
IC105
R1042
100
R1043
100
R1044
100
C1068
470P
C1067
470P
C1066
470P
C1069 10/
50V
R1041
4.7
C1008 OP
E
N
C1009 OP
E
N
R1008
0
R1009
0
C1004
100P
R
1004
75
C1005
100P
C1006
100P
R
1005 75
R
1006
75
C1018
10/50
C1017
10/50
C1016
10/50
R
1018
75
R
1017
75
R
1016
75
C1213
10/50
C1211
10/50
C1209
10/50
C1210
100P
C1063
10/50V
C1064
10/50V
C1065
10/50V
R
1037 4.
7
C1111
10/
50V
C1112
10/
50V
C1113
10/
50V
1 2 3 4
5 6 7 8
RN
1
1
5 100X
4
JK101
JK102
JK103
321
CN
103
C1221
470/10V
C1222
470/10V
C1223
100/10V
C1101
10/50
C1102
10/50
C1103 10/50
Q1004
C3875S
Q1003
C102S
R1069
10K
R
1070
4.
7K
C1098
1500P
R
1071 56
R
1158 1K
R1160
1K
C1097
47P
R
1072
10K
Q1009
C3875S
R1159
1K
C1099
6800P
R1161
0
R
1162 OP
E
N
R1163
OPEN
R
1164
75
R1165
75
R
1166
75
R1167
75
R
1168
75
R1169
75
C1224
JUMPER
-5
VV
+5VVA
+5VVA
-5VV
+5VVA
-5
VV
+5VVA
-5VV
+5VVA
VIDEO_IN_OUT
COMPONENT3_PR
COMPONENT3_PB
COMPONENT3_Y
COMPONENT2_PR
COMPONENT2_PB
COMPONENT2_Y
COMPONENT1_PR
COMPONENT1_PB
COMPONENT1_Y
+5
V
V
+5VVA
VIDEO_SW_IN
COMP_SW1
COMP_SW2
COMP_SW1
COMP_SW2
SW1
SW2
SW3
SW4
SW1
SW2
SW3
SW4
SW1
SW3
SW4
CVBS_IN
S-VIDEO_C_IN
S-VIDEO_Y_IN
CVBS_IN
S-VIDEO_Y_IN
CVB
S
_IN
S
-V
ID
E
O
_Y
_IN
+5VVA
+5VV
2535_SW1
2535_SW2
CVBS_INPUT
S-VIDEO_Y_INPUT
S-VIDEO_C_IN
COMPONENT_Y
COMPONENT_PB
COMPONENT_PR
COMPONENT_PB
COMPONENT_PR
COMPONENT_Y_IN
V_SDA
V_SCL
VIDEO_INT
DEC_RST
+5VVA
CO
M
P
O
N
E
N
T
_
P
R
CO
M
P
O
N
E
N
T
_
P
B
C
OM
P
ON
E
N
T
_
Y
_
OU
T
S
-VI
D
E
O_
C
_
OUT
S-
V
ID
E
O
_
Y
_
O
U
T
CVB
S
_O
UT
COMPONENT_PR_OUT
COMPONENT_PB_OUT
COMPONENT_Y_OUT
S-VIDEO_C_OUT
S-VIDEO_Y_OUT
CVBS_OUT
VCR_COMPOSITE_IN
VCR_COMPOSITE_OUT
AUX_COMPOSITE_IN
CAB/SAT_COMPOSITE_IN
DVD_COMPOSITE_IN
GAME_COMPOSITE_IN
VCR_S-VIDEO_C_OUT
VCR_S-VIDEO_C_IN
AUX_S-VIDEO_C_IN
CAB/SAT_S-VIDEO_C_IN
DVD_S-VIDEO_C_IN
GAME_S-VIDEO_C_IN
VCR_S-VIDEO_Y_IN
VCR_S-VIDEO_Y_OUT
AUX_S-VIDEO_Y_IN
CAB/SAT_S-VIDEO_Y_IN
DVD_S-VIDEO_Y_IN
GAME_S-VIDEO_Y_IN
GAME_S-VIDEO_Y_IN
GAME_S-VIDEO_C_IN
GAME_COMPOSITE_IN
CAB/SAT_COMPOSITE_IN
CAB/SAT_S-VIDEO_C_IN
CAB/SAT_S-VIDEO_Y_IN
CVBS_OUT
S-VIDEO_C_OUT
S-VIDEO_Y_OUT
COMPONENT_Y_OUT
COMPONENT_PR_OUT
COMPONENT_Y_OUT
COMPONENT_PB_OUT
COMPONENT_PR_OUT
COMPONENT_Y_OUT
COMPONENT_PB_OUT
COMPONENT_PR_OUT
COMPONENT3_PR
COMPONENT3_PB
COMPONENT3_Y
CO
M
P
O
N
E
N
T
_
P
B
_O
UT
CO
M
P
O
N
E
N
T
_
P
R
_O
UT
+9VV
+5VV
-5VV
VGND
VGND
2285_S
W
1
VGND
VGND
VGND
VGND VGND VGND
VGND VGND VGND
VGND
VGND
VGND
VGND
VGND VGND
VGND
VGND VGND VGND
VGND VGND VGND
VGND VGND
VGND VGND
VGND VGND
VGND VGND
VGND VGND
VGND VGND
VGND
VGND VGND
VGND
VGND VGND
VGND
VGND VGND
VGND VGND
VGND VGND
VGND VGND
VGND VGND
VGND
VGND
VGND
VGND VGND
VGND VGND
VGND
VGND
VGND
VGND
VGND VGND
VGND VGND
VGND
VGND
VGND
VGND
VGND
VGND
VGND
VGND
VGND
VGND
VGND
DGND
DGND
VGND
SW2
COMPONENT_PB_OUT
AUX_COMPOSITE_IN
AUX_S-VIDEO_C_IN
AUX_S-VIDEO_Y_IN
DVD_COMPOSITE_IN
DVD_S-VIDEO_C_IN
DVD_S-VIDEO_Y_IN
2535_SW1
SW1
SW2
SW3
SW4
2285_SW1
2535_SW2
VGND
DGND
VGND
COMPONENT_Y
S
-VID
E
O
_C_IN
CO
M
P
O
N
E
N
T
_
Y
VGND VGND
DGND
DGND
COMPONENT1_PR
COMPONENT2_PR
COMPONENT1_PB
COMPONENT2_PB
COMPONENT1_Y
COMPONENT2_Y
VCR_S-VIDEO_C_OUT
VCR_S-VIDEO_Y_OUT
VCR_COMPOSITE_OUT
VGND VGND VGND
VCR_S-VIDEO_C_IN
VCR_S-VIDEO_Y_IN
VCR_COMPOSITE_IN
LFP_SW
VGND VGND VGND VGND VGND
+5VVA
VGND VGND
+5VVA