If) Schematic Diagram - Sony DSR-20MD Service Manual

DSR-20MD/20MDP
VA-102 (IF) SCHEMATIC DIAGRAM • See page 4-59 for VA-102 printed wiring board.
1 2 3
A
VA-102 BOARD (1/12)
IF
-REF.NO.:1,000 SERIES-
XX MARK:NO MOUNT
B
NO MARK:REC/PB MODE
R:REC MODE
P:PB MODE
*:IMPOSSIBLE TO MEASURE THE
VOLTAGE AT THE MARKED POINTS.
C
D
E
R104
0
10k
0
IC101
R108 TC74VHC08FT(EL)
10k
0 IC101
0
F
C104
0.1u
F
R106
10
R107
G
10
7 6 5 4 3 2 1
IC103
TC74VHC125FS(EL)
IC103
H
C103 8 9 10 11 12 13 14
0.1u
F
I
R101 10
R102 10
J
4 3 2 1
C102
R103
0.1u
10k
F
C101
5 6 7 8
10u
16V
TC7W125FU-TE12R
IC102
K
R105
10
L
05
1
VA-102 BOARD (10/12, 11/12)
(SEE PAGE 4-81, 84)
M
IF
VA-102 (1/12)
4 5 6 7
R110
R109
10
10
0
0
0
0
0
0 C106
0.1u
0
F
4.8
0.3 IC105
TC74VHCT08FS(EL)
0.4
IC105
5.0
2.8
4.6
R127
C105
0.1u
F
5.4
2.9
2.9 2.9
IC104
5.1 2.9
TC74VHCT08FS(EL)
R118
10
4.9 4.6
IC104
0 0
0
R112
10k
0
R119
10
DSR-20MDP
IC102
VA-102 BOARD (6/12)
(SEE PAGE 4-74)
4-63
8 9 1 0 1 1
JC-19 BOARD (1/18)
CN103
(SEE PAGE 4-20)
C107 C108
0.1u 0.1u
F F
R152
R3.0/P0.2 R2.7/P0.2
Q103
UN5211-TX
R153
3.0
0.2 0.2
Q102
UN5211-TX
R154
3.0
0.7 0.8
Q101
UN5211-TX
3.0
5.4
5.0
2.9
4.7
5.0
0
0
R129 C109
0.1u
10
F
10
5.0
*
IC106
TC74VHCT08FS(EL)
4.6
IC106
4.9
2.7
4.5
3 4
VA-102 BOARD (9/12) VA-102 BOARD (5/12)
2
(SEE PAGE 4-79) (SEE PAGE 4-72)
1 2 1 3 1 4 15
10k
10k
10k
C110
0.1u
F
Q107
UN5211-TX
3.0
UN5211-TX
5.4
4.9
2.6
4.3
4.9
*
0
R155
1k
5
VA-102 BOARD (4/12, 5/12)
(SEE PAGE 4-69, 71)
4-64
16 17 18
JC-19 BOARD (1/18)
CN104
(SEE PAGE 4-19)
C111
0.1u
F
0.2
R166
10k
0.2
Q108
R0.1/P2.9
3.0
R170
10k
R0.2/P4.9
6
VA-102 BOARD (2/12, 3/12)
(SEE PAGE 4-66, 68)
SIGNAL PATH
VIDEO SIGNAL
CHROMA Y
REC
PB