Read Sony DCR-PC115 / DCR-PC115E / DCR-PC120 / DCR-PC120BT / DCR-PC120E Service Manual online
DCR-PC115/PC115E/PC120BT/PC120E
4-57
4-58
DC/DC CONVERTER
VC-270 (18/18)
For Schematic Diagram
• Refer to page 4-19 for printed wiring board.
• Refer to page 4-19 for printed wiring board.
:Voltage measurement is impossible
for the CSP ICs and the Transistors
that are shown with the mark.
for the CSP ICs and the Transistors
that are shown with the mark.
8.2
0.7
7.6
3.8
0.7
6.0
8.2
2.5
3.0
2.5
3.1
3.1
2.8
5.8
8.2
8.2
7.0
1.9
3.5
1.9
1.6
6.7
3.4
1.6
8.2
5.0
5.0
1.8
8.2
3.7
5.4
8.2
2.7
2.9
2.9
8.2
R1.4/P0.9
0
8.2
R7.6/P8.2
4.7
8.2
3.7
4.7
1.8
0.1
0.1
8.3
8.3
8.3
8.3
NO MARK:REC/PB MODE
R :REC MODE
P :PB MODE
R :REC MODE
P :PB MODE
2.8
3.0
2.8
:The Semiconductors shown by the mark,
cannot be measured of their voltages and
waveforms due to machines mechanical stracture.
cannot be measured of their voltages and
waveforms due to machines mechanical stracture.
1uH
L1612
1uH
L1616
1uH
L1621
1uH
L1619
100
R1636
1uH
L1614
C1662
10u
TA
6.3V
P
SHOE_ON
10u
TA
6.3V
P
C1667
C1663
10u
6.3V
6.3V
C1661
10u
10u
6.3V
10u
6.3V
P
C1656
DRUM_VS
4.7uH
L1613
10u
6.3V
TA P
TA P
C1671
10u
10V
10V
C1669
MA3XD21001S0
D1614
L1617
4.7uH
L1620
4.7uH
1uH
L1624
10u
6.3V
P
C1657
A_4.6V
L1623
1uH
4.7u
25V
C1675
10u
6.3V
P
C1655
10u
6.3V
TA
P
C1664
L1618
1uH
LND161
A
C1659
10u
6.3V
TA
P
47k
R1635
CAP_VS
B
6.3V
47u
C1666
1u
B
C1638
A_2.8V
LND162
A
CAM_-7.5V
1M
R1637
CAM_15V
C1672
XX
1uH
L1626
1M
R1648
100
R1649
1u
B
C1640
47k
R1650
TPC8305(TE12L)
Q1627
8
7
2
1
6
5
4
3
1k
R1652
R1651
1k
6.3V
4.7u
B
C1641
22uH
L1603
MCH3309-TL
Q1608
1
2
3
0
R1638
4.7u
10V
B
C1628
MCH3309-TL
Q1609
1
2
3
0
R1639
6.3V
4.7u
B
C1642
4.7u
10V
B
C1629
33uH
L1604
6.3V
4.7u
B
C1643
22uH
L1605
MCH3309-TL
Q1610
1
2
3
0
R1640
4.7u
10V
B
C1630
6.3V
4.7u
B
C1644
22uH
L1606
MCH3309-TL
Q1611
1
2
3
0
R1641
4.7u
10V
B
C1631
6.3V
4.7u
B
C1645
10uH
L1607
MCH3309-TL
Q1612
1
2
3
0
R1642
6.3V
4.7u
B
C1646
22uH
L1608
MCH3309-TL
Q1613
1
2
3
R1643
0
6.3V
4.7u
B
C1650
22uH
L1610
MCH3309-TL
Q1616
1
2
3
0
R1646
4.7u
10V
B
C1637
MCH3405-TL
Q1617
1
2
3
22uH
L1601
4.7u
10V
B
C1635
22uH
L1602
4.7u
10V
B
C1636
MCH3310-TL
Q1615
1
2
3
1uH
L1615
22u
4V
P
C1660
6.3V
4.7u
B
C1647
4.7u
10V
B
C1634
MCH3309-TL
Q1614
1
2
3
22uH
L1609
0
R1644
100k
R1663
22k
R1666
±
0.5%
100k
R1668
±
0.5%
22k
R1669
±
0.5%
4700
R1670
16V
2.2u
B
C1648
10V
2.2u
B
C1649
1uH
L1611
A
10V
TA
10u
C1654
0.1u
C1622
0.01u
B
C1603
0.1u
C1620
±
0.5%
4700
R1627
±
0.5%
20k
R1623
47k
R1632
±
0.5%
10k
R1621
0.022u
C1609
100p
CH
C1613
4700
R1615
10k
R1612
0.022u
C1610
100p
CH
C1616
47k
R1626
0.022u
C1607
0.001u
C1606
0.047u
C1625
0.047u
B
C1618
4700
R1624
4700
R1610
0.022u
B
C1604
0.001u
C1605
4700p
B
C1608
±
0.5%
56k
R1628
1k
R1616
0.047u
C1614
±
0.5%
10k
R1629
10k
R1613
0.001u
C1612
1k
R1614
0.047u
B
C1617
4700
R1625
±
0.5%
12k
R1604
±
0.5%
18k
R1630
47k
R1617
18k
R1631
0.047u
C1627
4700
R1611
±
0.5%
1500
R1622
0
R1671
0
R1672
0.1u
B
C1611
±
0.5%
10k
R1607
1005
±
0.5%
12k
R1609
1005
1005
0.1u
B
C1602
0
R1620
XSYS_RST
XOSD_SCK
OSD_SO
XCS_DD
±
0.5%
100k
R1605
MCH5804-TL
Q1625
MCH5804-TL
Q1624
MCH5804-TL
Q1623
MCH5804-TL
Q1622
MCH5804-TL
Q1621
MCH5804-TL
Q1620
MCH5804-TL
Q1619
MCH5804-TL
Q1618
RB501V-40TE-17
D1608
RB501V-40TE-17
D1610
4.7uH
L1627
EVER_3.0V
R1634
0
10u
6.3V
P
C1673
UNRL21300AS0
Q1606
UNRL21300AS0
Q1607
EC3201C-PM-TL
Q1631
EC3201C-PM-TL
Q1635
EC3101C-PM-TL
Q1633
0
R1674
4.7uH
L1628
4.7uH
L1629
10u
6.3V
6.3V
C1677
1uH
L1631
±
0.5%
10k
R1675
UNRL11300AS0
Q1636
UNRL11300AS0
Q1626
2SJ305(TE85L)
Q1638
2SJ305(TE85L)
Q1637
R1676
XX
0
R1678
0
R1679
0
R1680
0
R1681
0
R1682
0
R1683
0
R1684
0
R1685
0
R1686
0
R1687
R1688
XX
L1632
1uH
A_UNREG
C_UNREG
D_UNREG
B_UNREG
E_UNREG
F_UNREG
0.001u
B
C1678
2.2u
C1674
4V
68u
C1658
XX
R1689
XX
R1690
0
R1691
UNRL21300AS0
Q1639
EC3101C-PM-TL
Q1640
0.1u
B
C1679
15k
R1692
120k
R1693
10uH
L1633
CAM_DD_ON
4.7u
10V
B
C1633
MB4499LGA-G-ER
IC1601
1
2
3
4
5
6
7
8
9
10 11 12 13 14 15 16 17 18 19 20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
VTR_UNREG
1005
C2402
0.1u
4700
R2405
Q2404
EC3202C-PM-TL
MA4L72800AS0
D2402
VTR_DD_ON
R2403
1M
1005
C2401
0.1u
47k
R2404
MA4L72800AS0
D2403
MCH3211-TL
Q2403
R_IC_VOUT
MCH3306-TL
Q2407
SAVED_E2.8V
R2401
2200
Q2401
EC3202C-PM-TL
0.1u
B
C2403
D_2.8V
MT_4.9V
PANEL_13.5V
SW_CAM_15V
A_2.8V
D_2.8V
D_1.6V
D_2.8V
D_3.1V
D_2.8V
D_1.9V
D_3.1V
D_2.8V
D_2.8V
A_2.8V
D_1.9V
D_1.5V
D_2.8V
D_1.9V
REG_GND
REG_GND
REG_GND
REG_GND
REG_GND
REG_GND
REG_GND
D_1.9V
REG_GND
RP_4.6V
RP_2.8V
A_4.6V
D_2.8V
REG_GND
D_2.8V
REG_GND
A_4.6V
A_2.8V
D_2.8V
A_2.8V
REG_GND
MT_4.9V
A_3.1V
A_2.8V
MT_4.9V
D_2.8V
REG_GND
D_3.1V
MT_4.9V
REG_GND
D_2.8V
D_2.8V
REG_GND
MT_4.9V
REG_GND
D_2.8V
EVF_13.5V
AU_4.6V
AU_2.8V
REG_GND
A_2.8V
A_4.6V
AU_2.8V
MT_4.9V
EVF_13.5V
EVF_4.6V
EVF_2.8V
PANEL_13.5V
PANEL_2.8V
PANEL_4.6V
PRT_UNREG
SHOE_UNREG
REG_GND
CL001
CL012
1
A
DRUM_ERROR
CAP_ERROR
A_2.8V
OUT2-N
OUT3-N
OUT1-N
OUT6-N
OUT4-N
OUT5-N
OUT5-P
OUT10-P
OUT9-N
OUT4-P
OUT6-P
OUT1-P
OUT3-P
OUT2-P
CAM_15V
D_1.9V
OUT8-P
OUT7-P
OUT8-N
OUT7-N
D_1.5V
-IN2
V-IN3
V-IN5
A_4.6V
V-IN4
D_1.6V
D_2.8V
V-IN1
OUT5-N
OUT5-P
OUT10-P
OUT9-N
OUT8-P
OUT8-N
OUT7-N
OUT7-P
OUT2-N
OUT2-P
OUT3-P
OUT3-N
OUT1-P
OUT1-N
OUT6-N
OUT6-P
OUT4-P
OUT4-N
V-IN7
V-IN1
V-IN3
V-IN8
V-IN4
-IN2
V-IN5
V-IN8
V-IN7
V-IN6
V-IN6
CAM_15V
CAM_-7.5V
A_2.8V
D_1.6V
D_1.5V
D_3.1V
CAM_-7.5V
D_3.1V
D_2.8V
D_1.9V
A_4.6V
-IN(S)9
FB10
-IN10
-IN(A)10
OUT(A)10
CT
RT
CS2
CS1
-IN(S)10
CSCP
U/DCTL56
GND
VB
Vdd(O)-2
Vcc(O)-2
GND(O)-2
SWOUT6
Vdd(O)-3
Vcc(O)-3
GND(O)-3
OUT10-P
OUT9-N
OUT8-P
OUT8-N
OUT7-P
OUT7-N
OUT6-P
OUT6-N
OUT4-P
OUT4-N
OUT3-P
OUT3-N
OUT2-P
OUT2-N
OUT1-P
OUT1-N
OUT5-P
OUT5-N
GND(O)-1
Vdd(O)-1
Vcc(O)-1
SSOUT5
LD
DIN
CLK
RST
DOUT
V
-IN8
V
-IN6
V
-IN7
V
-IN5
V
-IN4
V
-IN3
V
-IN1
Vdd
CTL
U/DCTL2
FB2
-IN2
+IN2
FB1
-IN1
FB3
-IN3
FB4
-IN4
FB5
-IN5
FB7
-IN7
+IN7
FB6
-IN6
FB8
-IN8
+IN8
FB9
-IN9
GCTL
93
TO(13/18)
58
TO(6/18,13/18)
TO(6/18,10/18,11/18,13/18,
14/18,17/18(CN003))
14/18,17/18(CN003))
57
TO(17/18(CN011))
113
-REF.NO.:20,000 SERIES-
VC-270 BOARD(18/18)
DC/DC CONVERTER(DD BLOCK)
XX MARK:NO MOUNT
TO(1/18,12/18,
13/18)
13/18)
6
112
TO(17/18
(CN011))
(CN011))
TO(15/18,16/18,
17/18(CN011))
17/18(CN011))
106
80
TO(13/18)
97
TO(13/18)
IC1601
DC/DC CONVERTER
CSP(CHIP SIZE PACKAGE)IC
SWITCH
SWITCH
SWITCH
Q1626,1627,1636,1637,1638
PRT/SHOE UNREG OUT
PRT/SHOE UNREG OUT
Q1616,1625
SWITCHING
SWITCHING
SWITCHING
SWITCHING
Q1614,1624
SWITCHING
SWITCHING
Q1613,1623
SWITCHING
SWITCHING
Q1612,1622
SWITCHING
SWITCHING
Q1611,1621
SWITCHING
SWITCHING
Q1610,1620
SWITCHING
SWITCHING
Q1609,1619
SWITCHING
SWITCHING
Q1608,1618
SWITCHING
SWITCHING
108
TO(15/18)
Q1631,1633,1635
+13.5V REG
+13.5V REG
3
TO(1/18)
18
TO(2/18)
30
TO(3/18)
42
TO(4/18)
43
TO(5/18)
46
TO(6/18)
TO(7/18)
61
TO(8/18)
62
TO(9/18)
69
TO(10/18)
70
TO(11/18)
74
TO(12/18)
79
95
TO(13/18)
102
TO(14/18)
TO(15/18)
107
TO(16/18)
110
TO(17/18)
114
16
Capstan speed servo
Capstan servo (speed and phase)
PB
Drum servo (speed and phase)
REC
Drum phase servo
Drum speed servo
REC/PB
SIGNAL PATH
Capstan phase servo
12
J
7
B
M
11
K
G
I
17
2
16
13
4
C
F
E
3
10
14
19
5
9
6
8
H
15
L
18
D
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