Sony DSR-250 Service Manual page 99

For Schematic Diagram
• Refer to page 4-63 for printed wiring board.
• Refer to page 4-123 for waveforms.
2 3
1
VI-156 BOARD(7/25)
NO MARK:REC/PB MODE
LINE IN/OUT(IO BLOCK)
R :REC MODE
P :PB MODE
A
-REF.NO.: 10000 SERIES-
XX MARK:NO MOUNT
60
TAKO_CK
TO(8/25)
B
8 ALIGN_APC_ERROR
TO(8/25)
TAKO_C_OUT
61
TO(8/25)
TAKO_Y_OUT
C
VIDEO_I/O
62
TO(22/25) S_C_I/O
S_Y_I/O
5.0
Q1301
R1304
2SD2216J-QR(K8).SO
100
D
0 0
R1302
4700 R1305
220k
SDC_IN
C1301
R1301
0.01u B
4700
63
TO(9/25)
E
3.0
XVIDEO_IN
XCS_IO
XCS_IO
VSP_SO
VSP_SO
27
TO(9/25) XVSP_SCK
XVSP_SCK
F
ACC_CONT
ACC_CONT
64
TO(8/25) AGC_CONT
AGC_CONT
C1302
G
0.01u
CAIN_Y_OUT
56
TO(6/25)
CAIN_C_OUT
H
I
J
16
4 5 6 7
L1301 L1302
22uH 10uH
R1320
VIDEO_I/O
S_C_I/O
R1336 R1335
100k 56k
S_Y_I/O
± 0.5% ± 0.5%
2SB1462J-QR(K8).SO
2.5
3.2
R1312 R1314 R1316
33
33 33
C1311
B
2.2u
C1309
0.033u B
3.0
Q1302 C1308
2.2u
UN9113J-(K8).SO
C1304
B
0.22u B
C1306
R1313 R1315 R1317
1u B
33 33 33
Q1303
2SC5376F-B(TPL3)
-0.6
C1310
0
R1306
2.2u B
10k
-0.6
C1307
0.01u B
0
Q1304
2SC5376F-B(TPL3)
0
R1307
10k
-0.6
C1303
0.01u
B
0
Q1305
2SC5376F-B(TPL3)
0
R1308
10k
-0.6
B
4-25
8 9 10
L1303
C1319
C1312
R1323 C1316
270p CH 0.68uH
1u B 1u B
39k
C1320
0.001u
B
X001
C1323
R1321
13.5MHz
33k XX B
R1324
220
10k
36 35 34 33 32 31 30 29 28 27 26 25
Q1306
R1318
22k
± 0.5%
1.6 48
IR IR_V_OUT
MAIN_GND1 V_VCC
2.2
Y_IN1 49
DRV_V_OUT
MAIN_GND2 V_INV
0 IC1301
SYNC_SEP_TC V_GND
2.2
Y_IN2 Y_GND
LINE IN/OUT AGC,ACC
2.5
CLAMP_TC1 DRV_Y_OUT
Y_IN3 Y_INV
IC1301
R2.7/P2.4 44
AN2225FHQ-EB
CLAMP_TC2 Y_VCC
2.2
Y_IN4 C_VCC
0.8
45
DRV_C_OUT
Y_GCA_CONT
0
C_IN1 SDC
46 47
C1305
1 2 3 4 5 6 7 8 9 10 11 12
1u B
R1333
R1322
XX
1k
R1334 R1331
XX XX
R1319 C1314
1k 1u B
C1313
10u
C1315
10V
0.01u
TA
B
A
C1321
0.01u
B
C1322
0.1u B
11 12 13 14
10
A_4.6V
D_2.8V 16
FB1301
L1304
10uH
C1332
10u
10V
TA A
6
REG_GND
C1333
XX B
65
VIDEO_OUT
C1341
100u
4V
DR_V_OUT
5.0
C1330
2.0 R1326
100u
1k
4V
1.7
R1329
C1338 C1342
100u 4V 1k
2.2u B
1.2
DR_Y_OUT
1.3
C1340
R1327
100u 4V
1k
5.0
5.0 C1337 R1328
2.2u B 1k
C1343
1.9
22p
CH
0
C1328
0.01u B R1330
2200
DR_C_OUT
R1325
10k
C1329
0.01u
B
R1332
L1305
XX XX
NOT USE
TAKO_Y_OUT2
C1344
XX
CH
SIGNAL PATH
VIDEO SIGNAL
CHROMA Y Y/CHROMA
REC
PB
4-26
DSR-250/250P
TO(25/25)
TO(25/25)
TO(25/25)
TO(23/25)
LINE IN/OUT
VI-156 (7/25)