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DCR-TRV145E/TRV147E/TRV245E/TRV250E
COVER
COVER
For Schematic Diagram
• Refer to page 4-51 for printed wiring board.
• Refer to page 4-67, 4-68 for waveforms.
4-19
4-20
VC-304 (6/12)
4-2. SCHEMATIC DIAGRAMS
VC-304 BOARD SIDE A
VC-304 BOARD SIDE B
4-2. SCHEMATIC DIAGRAMS
VC-304 BOARD SIDE A
VC-304 BOARD SIDE B
*:IMPOSSIBLE TO MEASURE THE
VOLTAGE AT THE MARKED POINTS.
NO MARK:REC/PB MODE
R:REC MODE
P:PB MODE
4.5
0
2.9
0.5
1.0
0.5
1.0
0.5
0.2
5.0
0.2
1.7
1.7
1.7
3.4
2.9
2.8
1.4
*
*
0.4
0.6
0.6
0.4
0.4
0.1
0.1
0
0.7
1.3
2.9
1.3
1.7
1.7
1.7
1.7
0.9
2.0
1.4
*
1.3
0.1
1.3
1.0
13.4
0.1
1.1
1.1
0.3
0.3
0.3
1.2
1.2
*
*
1.2
1.2
*
*
8.3
2.7
0
0
2.9
1.4
2.7
2.9
0.2
0.5
0
19
20
21
22
23
24
IC2401
BLOCK
(CAPSTAN MOTOR)
(PAGE 4-42)
MECHANISM
(SENSOR)
MECHANISM
BLOCK
(PAGE 4-42)
(11/12)
46
47
(7/12)
(8/12)
48
(7/12)
49
50
(7/12)
51
(11/12)
(2/12)
19
52
(7/12)
10k
R2428
0.001u
C2434
4700
R2431
DRUM_ERROR
0.1u
C2433
0.001u
C2431
CAP_ERROR
470p
C2436
0.001u
C2439
2.2
R2422
1u
C2422
0.1u
C2437
EP_13.3V
0.1u
C2413
0.1u
C2428
0.1u
C2438
0.1u
C2423
XX
C2432
CAP_VS
2.2
R2421
XX
C2426
0.01u
C2412
2.2
R2419
0.1u
C2414
0
R2424
0.1u
C2416
XX
C2419
MT_GND
0.022u
C2429
XX
C2425
VTR_UNREG
XX
R2420
0.01u
C2411
REG_GND
0.1u
C2417
2SC584600LS0
Q2401
D_2.8V
33k
R2423
0.1u
C2420
IC2401
TB6550FG(EB)
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
CAPON
0.01u
C2424
C2427
2.2u
XX
R2405
0.1u
C2440
0.047u
C2435
1u
C2430
10k
R2418
0.01u
C2415
0.01u
C2418
1u
C2406
JL2404
JL2403
0.1u
C2401
10P
CN2402
1
PG
2
FG-PG_COM
3
FG
4
COM
5
W
6
W
7
V
8
V
9
U
10
U
22P
CN2403
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
2P
CN2401
1
2
15P
CN2404
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
470
R2403
270
R2404
0.1u
C2402
MODE_SW_A
MODE_SW_B
MODE_SW_C
DEW_AD
47k
R2401
330k
R2402
XCC_DOWN
ME_SW
REC_PROOF
HI8_MP_SW
XREEL_HALL_ON
XX
R2433
RB2401
XX
C2441
82
R2434
MT_5V
XX
C2442
XX
C2443
XX
C2445
XX
C2446
XX
C2444
XX
C2447
XX
C2448
XX
R2413
XX
R2411
FB2401
0.001u
C2403
0.047u
C2407
10V
0.01u
C2409
C2450
100p
C2449
100p
FB2403
FB2402
M
UNLOAD
LOAD
XCS_IC2401
DRUM_PWM
CAP_PWM
TAPE_LED_ON
CAP_FWD
CAP_ON
VSP_SO
XVSP_SCK
SPCK
XRST_VTR
LM_LIM_DET
TREEL_FG
SREEL_FG
TAPE_TOP
TAPE_END
DRUM_FG
DRUM_PG
CAP_FG
DRUM_VS
1
A
MODE_SW_C
MODE_SW_B
MODE_SW_A
DEW_AD
MODE_SW_A
MODE_SW_B
MODE_SW_C
DEW_AD
XCC_DOWN
HI8_MP_SW
REC_PROOF
ME_SW
HI8_MP_SW
REC_PROOF
ME_SW
XCC_DOWN
DRUM_PG_SENS
FG_PG_COM
DRUM_FG_SENS
DRUM_COM
DRUM_W
DRUM_V
DRUM_U
WHE-
WHE+
VHE-
VHE+
UHE-
UHE+
CAP_V
CAP_W
CAP_U
FG2
FG1
CAP_W
CAP_V
CAP_U
CAP_ON
CAP_FWD
CAP_FG
FG1
FG2
UHE+
UHE-
VHE+
VHE-
WHE+
WHE-
TAPE_TOP
TAPE_TOP_C
TAPE_END_C
TAPE_END
S_REEL_-
SREEL_FG
T_REEL_-
TREEL_FG
LM_-
LM_+
T_REEL_-
S_REEL_-
TAPE_END_C
TAPE_TOP_C
T
APE_LED_ON
LM_LIM_DET
VSP_SO
XCS_IC2401
XVSP_SCK
FG_PG_COM
DRUM_FG_SENS
DRUM_FG
LM_-
LM_+
DRUM_W
DRUM_V
DRUM_U
DRUM_COM
UNLDAD
LOAD
XVSP_SCK
VSP_SO
CAP_ON
CAP_FG
CAP_FWD
TAPE_LED_ON
DRUM_PG
DRUM_FG
TAPE_END
TAPE_TOP
SREEL_FG
TREEL_FG
LM_LIM_DET
CAP_PWM
DRUM_PWM
XCS_IC2401
LOAD
UNLOAD
DRUM_PWM
CAP_PWM
DRUM_PG_SENS
DRUM_PG
FG VCC
VH+
REG_GND
TAPE_TOP(C)
VH-
CAP_W
T_REEL(-)
TEPE_END(C)
HALL_COM
)
DEW
CAP_U
HW2
LM(+)
LM(-)
CAP_V
HV1
FG2
HI8_MP
S_REEL(-)
REC_PROOF
M-SW(B)
ME/MP
HW1
M-SW(A)
CAP_W
HV2
C_LOCK_SW
HU1
FG1
)
SENSOR_VCC
HU2
CAP_V
M-SW(C)
TAPE_LED(A)
REG_GND
TAPE_LED(K)
CAP_U
10K
FP/PG
LODING/DRUM/CAPSTAN
MOTOR
LODING
M903
MOTOR
DRUM
M901
M2200
MECHANISM
DECK(2/2)
MOTOR DRIVE
12
G
K
SERVO(MD DRIVE BLOCK)
8
C
H
6
7
05
B
13
14
N
VC-304 BOARD (6/12)
9
11
15
17
3
18
10
M
D
XX MARK:NO MOUNT
I
F
J
2
4
L
16
E
5
REC
Capstan speed servo
Drum speed servo
PB
Drum servo(speed and phase)
SIGNAL PATH
Drum phase servo
Capstan servo(speed and phase)
REC/PB
LED DRIVE