Read Sony DCR-TRV940 / DCR-TRV940E / DCR-TRV950 / DCR-TRV950E Service Manual online
DCR-TRV940/TRV940E/TRV950/TRV950E
COVER
COVER
:Voltage measurment of the CSP ICs
and the Transistors with mark,are
not possible.
and the Transistors with mark,are
not possible.
NO MARK:REC/PB MODE
2.8
0.5
2.7
CAP_FG
DRUM_ERROR
CAP_ERROR
CAP_PWM
DRUM_VS
DRUM_PWM
MT_4.9V
LM_LIM_DET
TAPE_LED_ON
LOAD
CAP_VS
XREEL_HALL_ON
UNLOAD
SREEL_FG
TREEL_FG
MT_GND
VTR_UNREG
TAPE_END
D_2.8V
TAPE_TOP
CAP_ON
CAP_FWD
DRUM_FG
DRUM_PG
XRST_VTR
XVSP_SCK
VSP_SO
XCS_3IN1
SPCK
10k
R2429
XX
R2426
4700
R2437
XX
R2427
0
R2434
XX
R2428
10k
R2404
270
R2431
0
R2423
22k
R2436
10k
R2407
15k
R2418
100k
R2438
18k
R2424
XX
R2406
XX
R2409
0
R2405
0
R2403
0
R2413
0
R2411
2200
R2416
10k
R2412
10k
R2415
470p
C2428
1u
C2403
470p
C2423
470p
C2433
0.1u
C2409
0.1u
C2410
0.1u
C2412
0.1u
C2427
0.1u
C2406
470p
C2430
1u
C2416
0.1u
C2431
0.1u
C2422
0.1u
C2432
0.1u
C2417
1u
C2426
XX
C2420
0.001u
C2401
6800p
C2408
0.1u
C2415
0.1u
C2411
0.001u
C2402
0.047u
C2404
0.022u
C2424
XX
C2419
0.047u
C2405
6800p
C2407
0.1u
C2414
0.01u
C2418
0.1u
C2434
0.047u
C2429
1u
C2425
0.01u
C2435
0.01u
C2436
0.01u
C2437
2.2
R2420
2.2
R2419
2.2
R2417
XX
R2402
2SA2018H-T2L
Q2401
10uH
L2401
TB6550XBG(EB)
IC2401
1
C_FRC
2
TEST
3
VMR
4
CFGOUT
5
C_PGND
6
GND
7
CFGIN+
8
CFGIN-
9
CAGC
10
U+
11
U-
12
V+
13
V-
14
W+
15
W-
16
VCC1
17
VH
18
TOPIN
19
TOPOUT
20
ENDIN
21
ENDOUT
22
RLP1
23
RLM1
24
RLO1
25
RLDO1
26
RLP2
27
RLM2
28
RLO2
29
RLDO2
30
VCC2
31
LIMOUT
32
DEC1
33
DEC2
34
XRESET
35
MCK
36
SCK
37
XCS
38
SI
39
DGND
40
CSR
41
CBIN
42
CBOUT
43
CBLOUT
44
DBIN
45
DBOUT
46
ISNF
47
VG
48
PGC
49
PGIN
50
PGOUT
51
VREF
52
DFGIN
53
DFGOUT
54
DFC
55
DFILTER
56
UIN
57
VIN
58
WIN
59
COM
60
D_PGND
61
NC
62
NC
63
D_U
64
D_VS
65
D_V
66
NC
67
D_VS
68
D_W
69
L_OUT1
70
L_VM
71
NC
72
L_OUT2
73
L_PGND
74
C_U
75
C_VS
76
C_V
77
C_VS
78
C_W
79
NC
80
CAP_ON
81
D_PGND(M)
82
D_U(M)
83
D_U(M)
84
D_VS1(M)
85
D_V(M)
86
D_VS2(M)
87
D_W(M)
88
L_OUT1(M)
89
L_VM(M)
90
L_OUT2(M)
91
L_PGND(M)
92
C_U(M)
93
C_VS1(M)
94
C_V(M)
95
C_VS2(M)
96
C_W(M)
EC3201C-PM-TL
Q2402
1
4
3
2
68k
R1032
CHIME_SDA
DEW_AD
MODE_SW_C
XCC_DOWN
10P
CN1022
10
9
8
7
6
5
4
3
2
1
4.7uH
R1001
220k
R1033
33
R1016
27P
CN1006
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
REC_PROOF
33
R1017
MODE_SW_A
MODE_SW_B
CHIME_VDD
CHIME_SCK
27P
CN1007
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
XX
R2414
XX
R2408
XX
R2410
XX
B
C2413
1608
6.3V
XX
IC2402
1
2
3
45
XX
R2421
S_REEL_+
T_REEL_+
T_REEL_-
TAPE_LED_K
TAPE_LED_A
SENSOR_VCC
LM_-
LM_+
SENSOR_VCC
T
APE_LED_A
T
APE_LED_K
LM_-
LM_+
MODE_SW_C
MODE_SW_B
MODE_SW_A
DEW_AD
MODE_SW_C
MODE_SW_B
MODE_SW_A
DEW_AD
XCC_DOWN
REC_PROOF
CHIME_SCK
CHIME_SDA
CHIME_VDD
CHIME_VDD
CHIME_SDA
CHIME_SCK
REC_PROOF
XCC_DOWN
DRUM_W
DRUM_COM
DRUM_FG_SENS
FG_PG_COM
DRUM_PG_SENS
DRUM_W
DRUM_V
DRUM_U
DRUM_COM
FG_PG_COM
DRUM_FG_SENS
DRUM_PG_SENS
DRUM_FG
DRUM_PG
DRUM_FG
DRUM_PG
VSP_SO
XVSP_SCK
SPCK
XRST_VTR
SPCK
XRST_VTR
XVSP_SCK
VSP_SO
LM_LIM_DET
LOAD
UNLOAD
XCS_3IN1
XCS_3IN1
UNLOAD
LOAD
LM_LIM_DET
TAPE_END
TAPE_TOP
CAP_FG
CAP_FWD
CAP_ON
CAP_PWM
DRUM_PWM
TREEL_FG
SREEL_FG
TAPE_TOP
TAPE_END
CAP_FWD
CAP_FG
CAP_ON
T_REEL_+
T_REEL_-
S_REEL_-
S_REEL_+
TAPE_TOP_C
TAPE_END_C
CAP_V
UHE-
HE_VCC
UHE+
VHE+
WHE+
CAP_W
WHE-
VHE-
CAP_U
FG1
MR_VCC
FG2
HE_VCC
WHE-
WHE+
VHE-
VHE+
UHE-
UHE+
FG2
FG1
MR_VCC
CAP_U
CAP_V
CAP_W
S_REEL_-
DRUM_PWM
CAP_PWM
DRUM_V
DRUM_U
SREEL_FG
TREEL_FG
XMODE_SW_C
DEW+
SREEL+
SREEL-
MIC/REC_SW_GND
DRUM_W
T
APE_TOP
T
APE_END
M_COM
LM_LOAD
XMODE_SW_A
LM_UNLOAD
DRUM_V
LM_LOAD
DRUM_U
DRUM_U
XMODE_SW_B
HALL_GND
DRUM_W
TOP/END_GND
DEW
-
T
APE_LED_A
XCCDOWN_SW
SW_COM/SW_GND
DRUM_V
FG/PG_COM
CHIME_SDA
CHIME_SCK
T
APE_LED_K
TREEL-
XREC_PROOF
HALL_VCC
LM_UNLOAD
TREEL+
PG
CHIME_VDD
FG
VHE+
FG_VCC
HE_GND
CAP_W
WHE-
CAP_W
FG1
CAP_U
WHE+
FG2
VHE-
UHE-
FG_VCC
UHE+
CAP_U
CAP_U
N.C.
CAP_W
CAP_U
CAP_W
CAP_V
FG_GND
HE_VCC
CAP_V
CAP_V
CAP_V
FG_GND
IC2401
DRUM/CAPSTAN/LOADING
DRIVE
SENSOR VCC SWITCH
LED DRIVE
DRUM/CAPSTAN/LOADING DRIVE(MD BLOCK)
XX MARK:NO MOUNT
VC-288 BOARD (12/17)
118
(13/17)
(13/17)
117
(17/17)
112
(4/17)
47
115
(13/17)
(5/17)
53
116
(14/17)
(5/17)
66
D
8
14
10
E
H
3
15
1
11
2
J
F
I
L
4
C
B
7
6
16
05
13
9
A
K
12
G
5
HALL
FG
FG/PG
M901
DRUM MOTOR
CAPSTAN MOTOR
M902
J-MECHANISM (2/2)
MECHANISM BLOCK
(PAGE 4-83)
(13/17)
114
REC
Drum servo(speed and phase)
Capstan speed servo
Drum speed servo
Drum phase servo
REC/PB
PB
SIGNAL PATH
Capstan servo(speed and phase)
VSS
VCC
out
+
-
(16/17)
113
EVF_13.5V
REG_GND
T
APE_END_C
T
APE_TOP_C
4-36
For Schematic Diagram
• Refer to page 4-93 for printed wiring board.
• Refer to page 4-93 for printed wiring board.
VC-288 (12/17)
4-35
4-2. SCHEMATIC DIAGRAMS
VC-288 BOARD SIDE A
VC-288 BOARD SIDE B
4-2. SCHEMATIC DIAGRAMS
VC-288 BOARD SIDE A
VC-288 BOARD SIDE B
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