Read Sony DCR-PC115 / DCR-PC115E / DCR-PC120 / DCR-PC120BT / DCR-PC120E Service Manual online
DCR-PC115/PC115E/PC120BT/PC120E
4-51
4-52
DRUM/CAPSTAN MOTOR DRIVE
VC-270 (15/18)
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.
: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.
C406
2.2u F
R406
1
2012
R407
1
2012
C407
0.1u B
C404
0.047u
B
C410
0.022u
B
R408
3300
3300
R409
82k
C411
0.1u
F
R424
270
C401
0.001u
B
C402
0.001u
0.001u
B
R401
4700
4700
R404
68k
R411
18k
R405
15k
C405
0.047u B
R403
10k
10k
R410
2200
R412
0
R402
10k
C412
B
XX
UNLOAD
LM_LIM_ON
LOAD
LM_LIM_DET
DRUM_PWM
CAP_PWM
DRUM_ON
4700
R417
D_2.8V
VTR_UNREG
REG_GND
MT_4.9V
DRUM_VS
CAP_ERROR
DRUM_ERROR
TAPE_TOP
TAPE_END
DRUM_START
TREEL_FG
SREEL_FG
C403
6800p
B
0.1u
B
C427
1u
B
1608
C416
0.1u
B
C428
1
2012
R421
470p
B
C419
0.1u
B
C423
0.1u
B
C421
0.047u
B
C425
0.1u
B
C422
4700p
B
C429
1
2012
R422
0.1u
B
C424
0.1u
B
C420
4700p
B
C430
0.1u
B
C431
1
2012
R423
10k
R416
6800p
B
C409
XX
B
C413
B
0.022u
C408
XREEL_HALL_ON
DRUM_PG
TAPE_LED_ON
DRUM_FG
DRUM_FWD
B
C418
470p
470p
B
470p
C414
B
470p
C415
CAP_ON
100k
R426
100k
R427
1M
R429
CAP_FG
0.1u
B
C434
CFG_DUTY
2.2
1608
R432
0.1u
B
C433
0.47u
B
C435
2.2
1608
R430
0.1u
B
C436
82k
R428
0.1u
B
C438
CAP_FWD
XX
C439
0.1u
B
C432
39k
R433
2.2
1608
R431
XX
C440
0.22u
B
C437
100k
R418
10V
3.3u
3.3u
C426
2SA2018H-T2L
Q402
22k
R419
L401
10uH
10uH
10uH
L402
XX
R420
3300
R434
EVF_13.5V
FFREW_UP
1500
R437
EC3201C-PM-TL
Q401
LB11950GL-TBM
IC401
1
FGOUT
2
GND
3
RSAT
4
FC
5
FILTER
6
FRC
7
BRAKE
8
VCC1
9
CSLP2
10
CSLP1
11
VS
12
SELSLP2
13
SELSLP1
14
OSC
15
RF
16
STBY D
17
AGC
18
COM
19
U IN
20
U OUT
21
V IN
22
V OUT
23
W IN
24
W OUT
25
DEC2
26
DEC1
27
RS
28
OUT1
29
RFL
30
OUT2
31
LIMEN
32
LIM OUT
33
N.C.
34
END OUT
35
END IN
36
TOP IN
37
TOP OUT
38
VM
39
VCC2
40
RLDO2
41
RLO2
42
RLM2
43
RLP2
44
GND
45
RLP1
46
RLM1
47
RLO1
48
RLDO1
49
RSB
50
N.C.
51
ISNF
52
DBOUT
53
DBIN
54
CBLOUT
55
CBOUT
56
CBIN
57
CBEN
58
PG OUT2
59
PG OUT1
60
PGC
61
PG IN
62
VREF
63
FG IN
64
FG IN2
65
N.C.
66
N.C.
67
N.C.
68
N.C.
SC111319VHR2
IC402
1
N.C.
2
OFFSET_ADJ
3
PSA
VEB
4
FRC
5
N.C.
6
GND
7
N.C.
8
VCC2
9
VCC1
10
VG
11
N.C.
12
N.C.
13
C2H
14
C2L
15
N.C.
16
C1L
17
C1H
18
N.C.
19
VMR
20
FG+
21
FG-
22
RCC
23
N.C.
24
N.C.
25
N.C.
26
AGC
27
N.C.
28
VS
29
WOUT
30
P_GND
31
UOUT
32
VS
33
VOUT
34
P_GND
35
N.C.
36
N.C.
37
VH
38
N.C.
39
HU-
40
HU+
41
HW-
42
HW+
43
HV-
44
HV+
45
N.C.
46
FG_OUT
47
N.C.
48
N.C.
49
N.C.
XX
C441
R438
0
R439
0
CAP_VS
33
R011
CHIME_VDD
REC_PROOF_SW
MODE_SW_C
MODE_SW_A
27P
CN006
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
33
R012
DEW_AD
MODE_SW_B
CHIME_SDA
XCC_DOWN
4.7uH
L001
CHIME_SCK
27P
CN007
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
10P
CN005
1
2
3
4
5
6
7
8
9
10
1
A
UNLOAD
LOAD
LM_LIM_ON
LM_LIM_DET
TAPE_TOP_C
TAPE_END_C
T_REEL_-
T_REEL_+
S_REEL_+
S_REEL_-
DRUM_ON
DRUM_FWD
DRUM_START
DRUM_ON
DRUM_PG
DRUM_FG
TAPE_LED_ON
XREEL_HALL_ON
T
APE_LED_ON
DRUM_FWD
DRUM_PG
DRUM_FG
DRUM_COM
DRUM_FG_SENS
LM_+
LM_+
XREEL_HALL_ON
DRUM_START
DRUM_PG_SENS
DRUM_U
DRUM_V
DRUM_W
UNLOAD
LOAD
LM_+
LM_LIM_ON
LM_LIM_DET
MR_VCC
VHE+
VHE-
WHE+
WHE-
UHE+
UHE-
HE_VCC
CAP_V
FG2
CAP_W
FG1
TAPE_END_C
T_REEL_-
T_REEL_+
S_REEL_-
TAPE_TOP_C
S_REEL_+
UHE+
CAP_W
VHE-
VHE+
WHE+
FG1
WHE-
CAP_V
HE_VCC
UHE-
MR_VCC
CAP_U
DRUM_V
DRUM_U
DRUM_COM
FG_PG_COM
DRUM_FG_SENS
DRUM_PG_SENS
DRUM_W
CAP_U
FG_PG_COM
LM_-
FG2
CHIME_SCK
DEW-
LM_LOAD
XREC_PROOF
XCCDOWN_SW
LM_UNLOAD
TREEL-
TAPE_LED_K
LM_UNLOAD
CHIME_VDD
XMODE_SW_C
SREEL-
TAPE_LED_A
TOP/END_GND
TAPE_TOP
TAPE_END
DEW+
TREEL+
MIC/REC_SW_GND
XMODE_SW_A
LM_LOAD
SREEL+
HALL_GND
SW_COM/SW_GND
XMODE_SW_B
CHIME_SDA
HALL_VCC
UHE-
FG_GND
CAP_U
CAP_V
FG_VCC
CAP_U
CAP_W
VHE-
CAP_V
CAP_U
CAP_V
VHE+
WHE-
CAP_U
FG2
UHE+
CAP_V
CAP_W
CAP_W
WHE+
FG_GND
FG_VCC
HE_VCC
N.C.
HE_GND
CAP_W
FG1
PG
M_COM
FG/PG_COM
DRUM_U
DRUM_V
DRUM_W
DRUM_V
DRUM_W
FG
DRUM_U
M
FG/PG
M901
DRUM MOTOR
M
HALL
FG
M902
CAPSTAN MOTOR
TO
MD BLOCK
MD BLOCK
82
TO(13/18)
103
TO(14/18)
64
TO(8/18)
106
TO(16/18,
17/18(CN011),
18/18)
TO(18/18)
107
105
TO(14/18)
108
TO(18/18)
TO(14/18)
104
CSP(CHIP SIZE PACKAGE)IC
DRUM/LOADING MOTOR DRIVE
IC401
CSP(CHIP SIZE PACKAGE)IC
IC402
CAPSTAN MOTOR DRIVE
Capstan servo (speed and phase)
Drum speed servo
Capstan speed servo
Drum servo (speed and phase)
Capstan phase servo
PB
REC
Drum phase servo
REC/PB
SIGNAL PATH
16
XX MARK:NO MOUNT
-REF.NO.:20,000 SERIES-
VC-270 BOARD(15/18)
DRUM/CAPSTAN MOTOR DRIVE(MD BLOCK)
K
M
D
J
9
6
F
12
16
3
B
10
14
13
E
8
L
7
H
15
5
I
4
G
11
C
2
SWITCH
SWITCH
(SEE PAGE 4-59)
Click on the first or last page to see other DCR-PC115 / DCR-PC115E / DCR-PC120 / DCR-PC120BT / DCR-PC120E service manuals if exist.