Video Part; Video Encoder Part - NAD T737 Service Manual

SCHEMATIC DIAGRAM (VIDEO PART)
VIDEO SW PART
GAME_Y
GAME_C
VIDEO_IN_OUT
GAME_CVBS
C1209
COMPONENT_PR_OUT
GAME_S-VIDEO_Y_IN
10/50 COMPONENT_PB_OUT
COMPONENT_Y_OUT
VGND C1211
GAME_S-VIDEO_C_IN
AGND
10/50
VGND C1213
GAME_COMPOSITE_IN CAB/SAT_COMPOSITE_IN
VGND 10/50
GAME_L
DVD_COMPOSITE_IN
VGND GAME_COMPOSITE_IN
GAME_R
S-C R1007 100/10V MONITOR_S_C
MONITOR R1008 470/10V
S-Y 0 C1223 MONITOR_S_Y
0 C1222
OUT JK101
R1009 470/10V MONITOR_OUT
0 C1221
S-C VGND VGND VGND 10/50
C1103 VCR_S-VIDEO_C_IN
VCR_IN S-Y
C1102 10/50
VCR_S-VIDEO_Y_IN
10/50
C1101 VCR_COMPOSITE_IN
VCR_COMPOSITE_OUT
P/L ADD
VCR_COMPOSITE_IN
AUX_COMPOSITE_IN
VGND VGND VGND
S-C R1001 100/10V
75 VCR_S-VIDEO_C_OUT
VCR_OUT 100/10V
S-Y R1002 75
C1001 VCR_S-VIDEO_Y_OUT
C1002 CAB/SAT_S-VIDEO_C_IN
JK102
R1003 100/10V
75 VCR_COMPOSITE_OUT
DVD_S-VIDEO_C_IN
C1003
GAME_S-VIDEO_C_IN
S-C
AUX VGND VGND VGND C1010
S-Y AUX_COMPOSITE_IN
10/50
C1011
AUX_S-VIDEO_C_IN
10/50
C1012
AUX_S-VIDEO_Y_IN
10/50
CAB/SAT S-C
VGND
VGND VGND C1013
S-Y CAB/SAT_COMPOSITE_IN
10/50
JK103
C1014
CAB/SAT_S-VIDEO_C_IN
10/50
C1015
CAB/SAT_S-VIDEO_Y_IN VCR_S-VIDEO_C_OUT
10/50
S-C VCR_S-VIDEO_C_IN
DVD
S-Y
AUX_S-VIDEO_C_IN
VGND VGND VGND C1016
DVD_COMPOSITE_IN
10/50
C1017
DVD_S-VIDEO_C_IN
10/50
C1018
DVD_S-VIDEO_Y_IN
10/50
CAB/SAT_S-VIDEO_Y_IN
DVD_S-VIDEO_Y_IN
VGND VGND VGND VGND
GAME_S-VIDEO_Y_IN
VCR_S-VIDEO_Y_OUT
EUR Ver.
ONLY
VCR_S-VIDEO_Y_IN
JK104
AUX_S-VIDEO_Y_IN
C1020 COMPONENT1_PR
Pr1
10/50
VGND VGND C1022
Pr2 COMPONENT2_PR
10/50
VGND VGND C1024 COMPONENT1_PB
Pb1
10/50 COMP1
VGND VGND C1026
Pb2 COMPONENT2_PB COMP2
10/50
COMP3
VGND VGND C1028
Y1 COMPONENT1_Y
10/50
-5VV
VGND VGND C1030
Y2 COMPONENT2_Y
10/50
VGND VGND VGND
JK105
Pr OUT C1032
R1025 +5VVA
COMPONENT_PR_OUT
0
1000/6.3
VGND
Pr3 C1034
COMPONENT3_PR
10/50 COMPONENT1_Y
COMPONENT1_PB
C1036
Pb OUT VGND VGND R1027
COMPONENT_PB_OUT COMPONENT1_PR
0
1000/6.3
COMPONENT2_Y
Pb3 VGND C1038
COMPONENT3_PB COMPONENT2_PB
10/50
COMPONENT2_PR
Y OUT VGND VGND R1029 C1040
COMPONENT_Y_OUT COMPONENT3_Y
0 1000/6.3
COMPONENT3_PB
COMPONENT3_PR
VGND
Y3 C1042
COMPONENT3_Y
10/50
VGND VGND VGND
3-50
VIDEO_SW_IN
COMPONENT_PR_OUT
COMPONENT_PB_OUT
COMPONENT_Y_OUT
COMPOSITE(PIN1)
CVBS_IN
S-VIDEO_Y(PIN2)
COMPONENT Y(PIN3)
SW3
10/50V
SW4 CVBS_IN
C1063
R1031
1K
2535_SW1
1 2 3 4 5 6 7 8
75 10/50V
S2(SW2) S-VIDEO_Y_IN
S6(SW1)
6dB S7(SW2)
S4(SW4)
S5(SW5) S3(SW3) C1064
VGND VGND
6dB S1(SW1) 6dB
+5VVA
75 75 IC101
16 15 14 13 12 11 10 9 2535_SW2
CVBS
VCC
10/50V
COMPONENT_Y
VGND
VGND VGND C1065
SW1
SW2
CVBS_OUT
S-VIDEO_C_OUT
S-VIDEO_Y_OUT
S-VIDEO_C_IN
SW3
SW4
R1032
1K -5VV
1 2 3 4 5 6 7 8
75
S2(SW2)
S6(SW1)
6dB S7(SW2)
S4(SW4)
S5(SW5) S3(SW3) VGND VGND
6dB S1(SW1) 6dB
+5VVA
75 75 IC102
16 15 14 13 12 11 10 9
S-VIDEO_C
VCC
SW2
VGND VGND VGND
SW1
S-VIDEO_Y_IN
SW3
SW4
R1033
1K
1 2 3 4 5 6 7 8
75
S6(SW1) S2(SW2)
6dB
S7(SW2)
S5(SW5) S4(SW4)
S3(SW3)
6dB 6dB VGND VGND
S1(SW1)
+5VVA 75 75
IC103
16 15 14 13 12 11 10 9
VCC S-VIDEO_Y
SW2
VGND VGND VGND
SW1
100X4
SW1
SW2
SW3
SW4
SW1 SW2
COMPONENT_PR
2535_SW1
COMPONENT_PB
L X
2535_SW2
COMPONENT_Y 2285_SW1
H L
VGND
H H
R1034
4.7
24 23 22 21 20 19 18 17 16 15 14 13
IC104
1 2 3 4 5 6 7 8 9 10 11 12
VGND
R1035
4.7
COMP_SW2
COMP_SW1
VGND
COMP_SW1
COMP_SW2
* LC74763M OPTION TABLE
SW1 SW2 L1002
C701 C702 X701
+5VVA
100uH
L L PAL 27P 27P 17.734
NTSC 33P 33P 14.318
T_CVBS
H L
VSS
VGND
VDD1
VGND R1054
OSD_CVBS
H H Xin1
X1002
+5VVA SYNCDET 1K
14.318MHz
Xout1
VCOOUT
T_S_Y
L1001
HSYNCOUT
5.6uH
VCOIN
VGND VGND
Xin2
OSD_S_Y
X1003 FC
VGND 14.318MHz(EU) R1055
Xout2 VGND
AMPOUT R1056 1K
VSYNCOUT
1K
AMPIN C1087 R1057
VGND VGND
notCS 6.8K
1/50 C1088
PDOUT R1058
OSD_DA
SIN
1.5K 50V/6800p
AMPIN
OSD_CLK R1059
VGND
SCLK
PDOUT 39K
C1089
SECAM
SYNCIN 0.1/50
C1090
not525/625
CVCR 56P
notNTSC/PAL
CVIN
VGND
not3.58/4.43
VDD2
notRST
CVOUT
Q1001
VGND
+5VVA
VGND
470/10
R1065
C1080 VGND 180
COMPO or S-V-Y OSD IN
VGND
OSD_CLK
OSD_CE1
+5VVA
8 9 10 11 12 13 14
VGND
IC109
74ACT04MTR
7 6 5 4 3 2 1
OSD_DATA
VGND
R1042 EXP_CLK
100
EXP_DATA
R1043
100
R1044 EXP_CE2
100
R1041
STB VDD +5VV
4.7
DATA EN
DGND DGND
CLK Q5
Q1 Q6
Q2 Q7
Q3 Q8
RN101
Qs 5 6 7 8
Q4
VSS Qs
1 2 3 4
DGND
R1045 EXP_CLK
100
R1046 EXP_DATA
100
R1047 EXP_CE
100
R1048
STB VDD
4.7
DATA EN
LFP_SW DGND
CLK Q5
SW1 C.SW2 * IC1,1,1 SW FORMAT
Q1 Q6
SW2 COMP_SW2
Q2 Q7
SW1
SW3 COMP_SW1
Q3 Q8
SW4
Qs
Q4
VCR
5 6 7 8
VSS Qs
AUX
VGND VGND 1 2 3 4
DGND
CAB/SAT
DVD
GAME
SW1 SW2 SW3
R1169
R1165 75
75
H R1167 75
VGND VGND
L
H
L
T_S_C
H
1 2 3 4 5 6 7 8
IC110
NJM2285
16 15 14 13 12 11 10 9
+5VVA
VGND
VGND
JUMPER 1/50V
R1067
C1224 150 C1094
Q1002
KTA1504S
VGND
VGND
0
R1161
+5VVA
1K OPEN
R1159 R1163
Q1009
C3875S
1K
R1160
10K
47P
Q1003 R1069 Q1004 C1097
C3875S
C102S
OPEN
VGND VGND VGND VGND VGND
R1151
R1152
1K
R1153 1K
1K
SW2 SW3 SW4 SW5
L L X X H
H L X L H
H H X L H
H H
H L L
H L H H H
3-51
CVBS_OUT
S-VIDEO_Y_OUT
S-VIDEO_C_OUT
COMPONENT_Y_OUT
COMPONENT_PB_OUT
COMPONENT_PR_OUT
COMPONENT_Y_IN
COMPONENT_PB
COMPONENT_PR
S-VIDEO_C_IN
S-VIDEO_Y_INPUT
CVBS_INPUT
V_SCL
V_SDA
VIDEO_INT
DEC_RST
LFP_SW
OSD_DATA OSD_DATA
OSD_CLK
OSD_CLK
VGND
VIDEO_INT VIDEO_INT
EXP2_CE
OSD_INH
OSD_CS
OSD_CS
VGND
OSD_SYNC
OSD_SYNC
EXP_DATA
EXP_DATA
VGND
EXP_CLK
EXP_CLK
EXP_CE
EXP_CE
RESET RESET
VIDEO_SDA
VIDEO_SDA
VIDEO_SCL
VIDEO_SCL
-5V
-5VV
+5V
+5VV
VGND
+9V
+9VV
VGND