2/14) (Video A/D Converter) - Sony DSR-25 Service Manual

JC-21 (2/14) (VIDEO A/D CONVERTER) • See page 4-99 for JC-21 printed wiring board. • See page 4-134, 135 for waveforms.
1 2 3 4
JC-21 BOARD (2/14)
A
VIDEO A/D CONVERTER
XX MARK:NO MOUNT
NO MARK:REC/PB MODE
R:REC MODE
P:PB MODE
B
R1171
1k
C
R1161
C1125 0.01u
XX
CL1155
R1.1/
P0.7
14
D
R1179
1k
1
E
R1172
4700 C1124
R1162
XX CL1154
F
R1156 R2/
P1.6
4700
14
5 5
CL1145
14 13 12 11 10 9 8
5
R1180
G
Q1116 10k
IC1101
UN5213-TX
CL1152
1
1 2 3 4 5 6 7
5 5
H
R1173 C1126
R1157 4700 0.01u
XX
R1163
CL1156
XX
R1106
CL1181 XX
I
R2/
P1.6
14
J
1
Y_CLP_ERR
12 JC-21 BOARD (9/14) CR_CLP_ERR
CB_CLP_ERR
K
R1174
XX
R1170
4700
R1185 R1190
4700 15k
R1175
3300
SIGNAL PATH C1123 C1194 C1130
47u 47u
6.3V 6.3V
L
VIDEO SIGNAL
CHROMA Y
REC
M
05
5 6 7 8 9
GND
10 JC-21 BOARD (14/14)
VIDEO_-5V
+5V
Y_IN
CR_IN
9
JC-21 BOARD (1/14)
CB_IN
-5V
11 JC-21 BOARD (4/14) AFH_CLP
CL1161
R1.2/P1
13 12 11 10 9 8
5 2.9 2.9 2.9
R1.1/
R1207
P0.7
4700 8 7 6 5
C1146
0.01u
CL1165
IC1102 IC1105
BA10358F-E2
RV1103
C1147
1k
0.01u
R1208
1 2 3 4
0
1 1 1 -4.9
RV1103
2 3 4 5 6 7 Y CLAMP
REF.VOLTAGE
5 1.2 1.2 1.2
IC1105
C1134
0.01u
0.01u
CL1160 IC1107
R1201
47
R2/ 2.6
P1.7
8 7 6 5
13 12 11 10 9 8
IC1103
1 2 3 4
3.2
R1204
1500
CL1169
C1141
C1148
C1140 10u
0.01u
0.01u 6.3V
2 3 4 5 6 7
5 2 2 2 C1149
RV1100
0.01u
4700
RV1100
R1199 CL1170
15k A/D CONV.
REF.VOLTAGE 1 CL1168
C1135 RV1101
0.01u RV1101
4700
A/D CONV.
R1200
8200 REF.VOLTAGE 2
C1142 0.01u
CL1162
R2/
P1.7 2.9 2.9 2.9 -4.9 2.9 2.9 2.9
13 12 11 10 9 8 14 13 12 11 10 9 8
R1205 R1209
1k 1k
IC1104 IC1106
RV1104
CL1164
2200
RV1102
2200
CL1171
CL1163
2 3 4 5 6 7 R1206 1 2 3 4 5 6 7
1k
5 2 2 2 1 1 1 5 1 1 1
RV1102
CR CLAMP
REF.VOLTAGE
R1189 R1195
XX XX
C1109
C1188
100u
100u
C1138
6.3V 6.3V
0.01u
C1145
R1194
0.01u
4700
C1187 R1196 C1136 C1110
15k
100u 100u 100u 100u
6.3V 6.3V 6.3V 6.3V
4-13
10 11 12 13
Q1126
6
2SC4081T106R
5
R1182 L1109
5 1k 10uH
Q1117
-0.3 2SC4081T106R
R2.2/P5
C1114
1u R1167 R1.6/ R1191
-0.9 16V 100 CL1157
100 P4.6
C1112 R1158
-4.9
0 Q1120
22u
4V 2SC3326N-TE85L-B
R1.6/
R0.9/P0.7
P4.6
R1151
C1120
R1.2/P1
22k
XX
C1127
C1117
R1164 R1176 0.01u
R1153
10u 2200 4700 R1186 C1131
1k
6.3V 1800 10p
7
R1183 5
1k
5
Q1118 Q1127
-0.3 2SC4081T106R 2SC4081T106R
R2.6/P5
C1115
1u R1192
R2/
R1168
16V 100 CL1158
-0.9 100 P4.5
C1111 R1159
Q1121 -4.9
22u 0
2SC3326N-TE85L-B
4V
R2/
R0.9/P0.7
P4.5
R1150
C1121
R2/P1.7
22k XX
C1128
R1165 R1177 0.01u
C1118
C1132
R1154 10u 10k 4700 R1187
1k 6.3V 1800 10p
8
R1184 5
1k
5
Q1128
Q1119
-0.2 2SC4081T106R 2SC4081T106R
R2.6/P5
C1116
R1193
1u
R1169 R2/
16V 100 CL1159
100 P4.5
-0.9
C1113 R1160
-4.9
22u 0 Q1122
2SC3326N-TE85L-B
4V
R2/
R0.9/P0.7
P4.5
R1152 C1122
R2/P1.7
22k
XX
C1129
R1155
R1166
1k C1119 R1178 0.01u
C1133
10u 10k 4700 R1188
10p
6.3V 1800
RV1104
CB CLAMP
REF.VOLTAGE
14 15 16 17 18
L1114
10uH
C1159
XX C1177
0.01u
C1171
10u
6.3V
C1139
3.2
10u
6.3V
16
C1137
0.01u
CL1173
2.9
L1112 10uH
3.2
IC1108
C1166 3.2
10u
C1174
6.3V
0.01u IC1108
CXD2300Q-T4
R1.6/P4
9
CL1174
1
R1197
0
25 26 27 28 29 30 31 32
C1151 C1162
10u 10u
6.3V 6.3V
L1115
C1178
C1160 10uH
0.01u
XX
C1172
10u
6.3V
3.2
16
CL1175
2.9
L1113 10uH
L1110 3.2
10uH
IC1109
C1143 C1167 3.2
0.01u
10u
C1175
6.3V
C1144 0.01u
IC1109
CL1166 10u
CXD2300Q-T4
6.3V R1.9/P4
CL1167 12
CL1176
1
25 26 27 28 29 30 31 32
C1152
10u
6.3V
C1158 C1163 C1169
0.01u 0.01u
10u
6.3V
L1116
10uH C1179
C1161
XX 0.01u
C1173
10u
6.3V
3.2
16
CL1177
2.9
L1111 10uH
3.2
IC1110
C1165 3.2
C1153
10u
XX C1176
6.3V
0.01u
IC1110
CXD2300Q-T4
R1.9/P4
14
CL1178
1
25 26 27 28 29 30 31 32
C1170
C1154
0.01u 0.01u
C1164
C1150
10u 10u
6.3V
6.3V
4-14
DSR-25
19 20 21
13
SPCK1 JC-21 BOARD (4/14)
C1180 R1211
XX 0
15 14 13 12 11 10 9
10
R0.8/P3.2
Y7
R1.3/P3.2
Y6
R1.3/P3.2
Y5
R1.6/P3.2
14
11
Y4
R1.2/P3.2
JC-21 BOARD (5/14)
Y3
R1.2/P3.2
Y2
R1.2/P3.2
Y1
R1.4/P3.2
Y0
15 14 13 12 11 10 9
10
R1.8/P3.2
CR7
R1.4/P3.2
CR6
R1.4/P3.2
CR5
R1.4/P3.2
13
CR4
R1.4/P3.2
CR3
R1.6/P3.2
CR2
R1.6/P3.2
CR1
R1.4/P3.2
CR0
15
JC-21 BOARD (3/14)
3.2
15 14 13 12 11 10 9
10
R1.9/P3.2
CB7
R1.3/P3.2
CB6
R1.3/P3.2
CB5
R1.5/P3.2
15
CB4
R1.1/P3.2
CB3
R1.1/P3.2
CB2
R1.3/P3.2
CB1
R1.4/P3.2
CB0
JC-21 (2/14)