Sony DCR-TRV940 Service Manual page 27

DCR-TRV940/TRV940E/TRV950/TRV950E
COVER
COVER
For Schematic Diagram
• Refer to page 4-97 for printed wiring board.
1 2
DB-014 BOARD (6/9)
VIDEO IN/OUT
A
XX MARK:NO MOUNT
:Voltage measurment of the CSP ICs
and the Transistors with mark,are
not possible.
B IC7001_CK
IC2001_APC_ERROR
IC7001_C_OUT
IC7001_Y_OUT
C
VIDEO_I/O
S_C_I/O
S_Y_I/O
D
2
3
28
Q7001
1
EC3201C-PM-TL
DC LEVEL
(8/9)
DETECTOR
4
R7002
4700
E SDC_IN
R7001
C7001
4700 0.01u
XVIDEO_IN
XCS_IC7001
XCS_IC7001
F
ACC_CONT
ACC_CONT
AGC_CONT
AGC_CONT
G
IC2101_Y_OUT
IC2101_C_OUT
VD_SO
VD_SO
90
VD_SCK
VD_SCK
(8/9)
05
DB-014 (6/9)
4-2. SCHEMATIC DIAGRAMS 4-2. SCHEMATIC DIAGRAMS
3 4 5
SIGNAL PATH
VIDEO SIGNAL
CHROMA Y
REC
PB
VIDEO_I/O
S_C_I/O
S_Y_I/O
R7010
R7008 R7012
33 33 33
R7003
100
R7004 Q7002
4
UNRL11300AS0
220k
SWITCH
1 R7009 R7011 R7013
33 33 33
3
Q7003
2
XX
C7003
XX
R7005
XX
Q7004
2SC5376C-B(TPL3)
2 3
SWITCH
R7006
1k
1
4
Q7005
2SC5376C-B(TPL3)
SWITCH
2 3
C7002
0.01u
1
R7007
4
1k
4-57
DB-014 BOARD SIDE A DB-014 BOARD SIDE A
6 7 8
Y/CHROMA
C7012
R7021 C7016
1u 39k 1u
R7019
33k
R7016
10k
36 35 34 33
R7017
22k
0.5%
IR
C7004
MAIN_GND1
2.2u
Y_IN1
MAIN_GND2
C7005
C7011
SYNC_SEP_TC
2.2u
0.033u
Y_IN2
CLAMP_TC1
C7008
0.22u Y_IN3
C7006
2.2u CLAMP_TC2
C7009
1u
Y_IN4
Y_GCA_CONT
C_IN1
C7007
0.01u
C7010
1u
R7018
1k
1 2 3 4
R7020
C7014
1k
1u
C7015
C7013
4.7u XX
DB-014 BOARD SIDE B DB-014 BOARD SIDE B
9 10
L7004
10uH
C7019 L7003
270p 0.68uH
C7029
4.7u
C7017
C7020
1u
0.001u
X7001 C7022
13.5MHz
XX C7030
XX
R7022
220
32 31 30 29 28 27 26 25
C7026
220u
4V
IR_V_OUT
V_VCC
R7024
DRV_V_OUT
C7023
2.2u
V_INV
V_GND
IC7001
C7027
220u
Y_GND
4V
VIDEO IN/OUT
DRV_Y_OUT
IC7001
R7026
Y_INV
AN2225NBBTBA
C7024
2.2u
Y_VCC
C_VCC
C7031
DRV_C_OUT
SDC
C7028
0.01u
C7025
R7023
0.01u
10k
5 6 7 8 9 10 11 12
C7018
0.01u
C7021
0.1u
4-58
11 12
63
A_4.6V
(9/9)
FB7001
51
D_2.8V
(9/9)
30
REG_GND
(9/9)
DR_V_OUT
1k R7025
1k
DR_Y_OUT
R7027
1k
1k
R7028
22p
1k
DR_C_OUT