Sony DSR-250 Service Manual page 110

DSR-250/250P
For Schematic Diagram
• Refer to page 4-63 for printed wiring board.
2 3 4
1
VI-156 BOARD(18/25)
NO MARK:REC/PB MODE
R :REC MODE
A AUDIO(AU BLOCK)
P :PB MODE
-REF.NO.:10000 SERIES-
XX MARK:NO MOUNT
B 165 AOUTL
TO(20/25)
166 LCHIN
TO(23/25)
167 X0DB/-7DB
TO(19/25)
168 AU_VCC
TO(24/25)
C R1605
47k
C1601
10u
6.3V
R1603
R1601
15k
47k
169 TO(20/25, AU_LINE_I/O_L
22/25)
D
E
F
170 AUDIO_GND
TO(24/25)
G 171
TO(20/25) AOUTR
172 TO(23/25) RCHIN
H
R1607
47k
C1602
10u
6.3V
R1604
R1602
15k
47k
I 173 TO(20/25, AU_LINE_I/O_R
22/25)
J
K
L
16
AUDIO
VI-156 (18/25)
5 6 7 8
IC1601
TA75S01F(TE85R)
IC1601
4.1
+ VCC
AUDIO ATT
R1606 7.0
68k VEE
4.1 4.1
- OUT
R1621
47k
R1613
R1664 R1615 C1607
C1603
R1609 1u 39k 1800 33k 1u
± 0.5% ± 0.5% ± 0.5%
10k B B
IC1603 M5201FP-600D
7.0
CTL
VCC
7.0
IC1603 4.1
A+
B+
4.1 4.1
A- B-
0dB/-7dB ATT
4.1
GND
OUT
4.1
R1617
47k
R1611
47k
7.0
R1619
10k
0
C1605
10u
6.3V
Q1601
UN9213J-(K8).SO
INVERTER
IC1602
TA75S01F(TE85R)
IC1602
4.1
+ VCC
7.0
VEE
AUDIO ATT
4.1 4.1
R1608
- OUT
68k
R1622
47k
R1616
R1614 R1665 C1608
R1610 33k
39k 1800 1u
10k ± 0.5% ± 0.5% ± 0.5%
B
C1604
1u
B
IC1604 M5201FP-600D
7.0
CTL
IC1604 VCC
7.0
4.1
A+
B+
4.1 4.1
0dB/-7dB ATT
A-
B-
4.1
GND
OUT
4.1
R1618
47k
R1612
47k
7.0
R1620
10k
0
C1606
Q1602
10u
UN9213J-(K8).SO
6.3V
INVERTER
4-47
9 10 11 12
R1639
47k
R1633 C1615
33k 1u
± 0.5% B
R1631 R1666
C1611
39k 1800
1u
± 0.5%
± 0.5%
B
C1626
10u
IC1607 M5201FP-600D
10V
TA IC1607 7.0
CTL
VCC
4.1
A+
B+
0dB/-7dB ATT
4.1
A- B-
GND
OUT
R1635
47k
R1629
47k
R1640
47k
R1667 R1634
C1616
1800 33k
1u
± 0.5%
± 0.5%
B
R1632
C1612
39k
1u
± 0.5%
B
C1625
10u IC1608 M5201FP-600D
10V
TA 7.0
CTL
IC1608
VCC
4.1
A+
B+
4.1
0dB/-7dB ATT A-
B-
GND
OUT
R1636
47k
R1630
47k
13 14 15 16
SIGNAL PATH
REC
PB
R1657
47k
R1651
33k C1623
± 0.5%
1u
IC1611 B
R1649 R1668
C1619
1u 39k 1800 0dB/-7dB ATT
± 0.5%
B ± 0.5%
IC1611 M5201FP-600D
7.0
CTL VCC
7.0 7.0
4.1
A+ B+
4.1 4.1 4.1
A- B-
4.1 4.1
GND OUT
4.1 4.1
R1653
47k
R1647
47k
R1658
47k
R1669 R1652 C1624
1u B
1800 33k
± 0.5% ± 0.5%
IC1612
C1620 R1650
1u B 39k
± 0.5%
0dB/-7dB ATT
IC1612 M5201FP-600D
7.0
CTL
VCC
7.0 4.1 7.0
A+ B+
4.1 4.1 4.7
A-
B-
4.1 4.1
GND
OUT
4.1 4.1
R1654
47k
R1648
47k
4-48
17 18 19
AUDIO
SIGNAL
PB_IN_R
174
TO(20/25)
PB_IN_L
C1621
6.8u
16V
TA
175
LCH1IN TO(19/25,20/25)
176
TO(20/25)
AU_LINE_L
177
AU_LINE_R TO(19/25)
178
RCH2IN TO(19/25)