Sony DCR-TRV820 Service Manual page 84

VC-235 (VIDEO IN/OUT) SCHEMATIC DIAGRAM • See page 4-11 for VC-235 printed wiring board. • See page 4-104 for waveforms.
1
2 3
VC-235 BOARD (4/16)
A
VIDEO IN/OUT
(TAKO BLOCK)
-REF.NO.:10,000 SERIES-
XX MARK:NO MOUNT
NO MARK:REC/PB MODE
R:REC MODE
P:Digital8 PB MODE
B
C:Hi8/Std8 PB MODE
TAKO_CK
ALIGN_APC_ERROR
24
VC-235 BOARD (5/16) LINE
TAKO_C_OUT
TAKO_Y_OUT
C LINE
11
TAKO_Y_OUT
VC-235 BOARD (1/16)
Hi8/Std8
KINUTA_Y_OUT
12
VC-235 BOARD (2/16)
KINUTA_C_OUT
Hi8/Std8
VIDEO_I/O
25
S_Y_I/O
D VC-235 BOARD (10/16)
S_C_I/O
26 IR_VIDEO
VC-235 BOARD (15/16)
Q3701
2SC4738F-Y/GR(TPL3)
DC LEVEL
DETECTOR
SDC_IN
E
R3701
4700
27
VC-235 BOARD (11/16)
F
XVIDEO_IN
ACC_CONT
24
VC-235 BOARD (5/16)
AGC_CONT
XCS_TAKO
G 28
VC-235 BOARD (11/16)
VSP_SO
XVSP_SCK
CAIN_Y_OUT
H
29
VC-235 BOARD (7/16)
CAIN_C_OUT
05
4 5 6
Hi8/Std8
Hi8/Std8
VIDEO_I/O
S_Y_I/O
S_C_I/O
4.7
R3704
100
0
R3714 R3716
R3712
0
39
39 39
R3702
R3705
4700
220k
C3701
0.01u
Q3702
XX
R3713 R3715 R3717
33 33 33
Q3703
XX
R3706
R3710
XX
ACC_CONT XX
AGC_CONT
Q3704
R3709
XX
XX C3703
XX
R3707
XCS_TAKO XX
VSP_SO
Q3705
XX R3711
XVSP_SCK
XX
R3708
XX
4-21
7 8 9
FB3701
0uH
R3734
R3732 R3731
0
XX XX
L3701
L3702
10uH XX C3717
1u
LINE
D3702
XX
C3713
1u
R3723
XX
R3719
R3733
XX
XX
R3718
XX
LINE Hi8/Std8
36 35 34 33
C3736
12
XX
R3721 R0/P0/
22k
C1.7
IR
13
MAIN_GND1
C3711
R1.5/P1.5/C2.1
2.2u
Y_IN1
MAIN_GND2
C3709 0.033u
R0/P0/C2.5
SYNC_SEP_TC
C3708
R1.3/P1.3/C2.1
2.2u
Y_IN2
R2.2/P2.2/C3.1
C3704
CLAMP_TC1
0.22u C3712
Hi8/Std8
R1.3/P1.3/C2.1
2.2u
Y_IN3
C3707
R1.1/P1.1/C2.7
1u
CLAMP_TC2
C3710
R1.5/P1.5/C2.1
2.2u
Y_IN4
R0.5/P0.5/C1.6
C3705
Y_GCA_CONT
0.33u
R0/P0/C0.5
C_IN1
C3706
0.01u
R3722
1k
1 2 3 4
R0.5/
P0.5/C1.3
R3724
1k
C3714 C3716
0.01u
6.3V 10u
Hi8/Std8
DCR-TRV820/TRV820E/TRV820P
10 11 12
L3703 C3725
XX XX
C3720
XX C3721
XX
C3722
XX
C3727
XX
X3701
XX
L3705
32 31 30 29 28 27 26 25 C3734
10uH
10u
6.3V
14 C3735
0 IR_VIDEO
IR_V_OUT
4.7 DR_V_OUT
V_VCC
15
C3732 220u
1.3 R3727
4V
DRV_V_OUT 1k
1.3
V_INV
C3728 2.2u R3730 1k
IC3701 V_GND
C3733
DR_Y_OUT
AN2225FHQ-EB
220u
Y_GND
16 R1.3/P1.3/C2 4V
R3728
IC3701
1k
DRV_Y_OUT
C3729
2.2u
VIDEO IN/OUT Y_INV
R3729
R1.3/P1.3/C1.7
1k
Y_VCC
4.7
C_VCC
17 C3730 0.01u
4.7 DR_C_OUT
DRV_C_OUT
R0.1/P0.1/C2.2
SDC
0
R3726
10k
C3731
0.01u
5 6 7 8 9 10 11 12
4-22
13 14
A_4.75V
D_2.8V
30
VC-235 BOARD (16/16)
REG_GND
0.01u
SIGNAL PATH
VIDEO SIGNAL
CHROMA Y Y/CHROMA
REC
PB
VIDEO IN/OUT
VC-235 (4/16)