CCD-TRV107/TRV108/TRV308/TRV408/TRV608
4-46
SERVO
VC-272 (6/12)
For Schematic Diagram
• Refer to page 4-31 for printed wiring board.
• Refer to page 4-62 for waveforms.
4-45
1.4
1.4
1.4
1.0
1.0
1.4
1.4
1.8
1.8
2.8
2.8
2.8
8.3
1.3
0.7
0.7
0.7
1.9
0.9
0.8
0
4.5
2.8
1.3
1.3
2.8
4.8
8.3
1.9
2.1
2.1
2.1
2.1
1.9
2.8
0
R0/P0.4
2.8
0
1.8
0.3
0.3
2.8
2.8
2.8
1.4
2.8
1.8
2.1
1.4
1.0
0
0
0.1
0
0
2.8
1.0
1.1
1.0
1.0
1.0
1.0
P0.6
R0.8
R0 P0.3
1.3
1.0
2.8
0.3
0.2
0.4
0.7
0.3
0.1
1.3
1.3
R0.1/P0
0.7
39
35
36
37
38
NO MARK:REC/PB MODE
R :REC MODE
P :PB MODE
0.1u
B
C459
0.1u
B
C453
XX
C457
R451
47k
TAPE_LED_ON
0.1u
B
C451
SREEL_FG
TAPE_END
0.1u
B
C463
2.2
R484
C460
0.1u
B
TREEL_FG
RB452
10kx4
1
2
3
4
5
6
7
8
D_2.8V
CAP_FWD
15k
R480
TAPE_TOP
22P
CN707
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
2.2
R486
R461
180
0.022u
B
C455
CAP_VS
MSW_B
R452
330k
0.022u
B
C456
REG_GND
Q451
2SC4738F-Y
0.1u B
C490
LOAD
LM_LIM_CONT
R462
150
CFG_DUTY
C480
0.1u
B
VTR_UNREG
R470
0
DRUM_ERROR
UNLOAD
15P
CN712
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
1
R459
4700
R465
B
0.01u
C476
1
R460
0.1u
B
C454
R468
3300
470
R464
CAP_ERROR
R467
15k
DRUM_FG
39k
R483
470p
C468
220p
C464
DRUM_VS
1M
R482
B
C485
0.047u
DEW_AD
B
C452
0.1u
DRUM_START
DRUM_PG
C477
0.047u
B
4700p
C465
C472
XX
DRUM_ON
2200p
C469
XREEL_HALL_ON
2P
CN704
1
2
LB1991V
-TLM
IC452
1
Vcc1
2
Vcc2
3
Vs
4
N.C.
5
Uout
6
Rf
7
V
out
8
Rf
9
W
out
10
VH+
11
VH-
12
ANGLE
13
GND
14
FRC
15
STBY
16
Uin1
17
Uin2
18
Vin1
19
Vin2
20
Win1
21
Win2
22
FGin+
23
FGin-
24
FGout
CAP_PWM
0.47u
F
C486
C475
0.022u
B
1
R458
0.1u B
C489
0.1u
B
C487
DRUM_BRAKE
R466 0
R474
47k
R481
4700
MSW_A
0.1u
B
C488
C478
0.047u
B
R472
1
10P
CN706
1
PG
2
FG-PG_COM
3
FG
4
COM
5
W
6
W
7
V
8
V
9
U
10
U
R469
82k
DRUM_PWM
35V
4.7u
C458
C479
2.2u
F
C482
0.001u
B
C467
2200p
MT_4.75V
CAP_FG
2200p
C471
MSW_C
0.1u
B
C466
RB451
100kx4
1u
B
C470
2.2
R485
0.1u
B
C461
C473
XX
470
R457
470p
C483
C481
0.001u
B
R471
1
470p
C484
IC451
CXA8096R
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
0.1u
B
C462
0.1u
B
C492
0.1u B
C491
CAP_ON
XREC_PROF_SW
HI8_MP_SW
ME_SW
CAP_FG
1
A
REG_GND
XLM_LIM_ON
XCC_DOWN
UNLOAD
LOAD
XLM_LIM_ON
LM_LIM_CONT
UNLOAD
LOAD
XLM_LIM_ON
LM_LIM_CONT
DRUM_PG_SENS
FG_PG_COM
FG_PG_COM
DRUM_FG_SENS
DRUM_COM
S_REEL_-
TAPE_END_C
TAPE_TOP_C
T_REEL_-
S_REEL_-
DRUM_ON
DRUM_START
DRUM_START
DRUM_ON
DRUM_PG
DRUM_FG
CAP_ON
TAPE_LED_ON
XREEL_HALL_ON
DRUM_FG
DRUM_PG
CAP_ON
LM_-
LM_+
TAPE_LED_ON
DRUM_U
DRUM_V
DRUM_W
DRUM_FG_SENS
DRUM_COM
MSW_B
MSW_A
MSW_C
CAP_FWD
CAP_FWD
CAP_ON
HU1
HV2
HW2
HU2
HV1
HW1
HU1
HU2
HV1
HV2
HW1
HW2
MSW_A
MSW_B
MSW_C
HI8_MP_SW
XREC_PROF_SW
LM_+
DRUM_U
DRUM_V
DRUM_W
DRUM_PG_SENS
T_REEL_-
TAPE_END_C
TAPE_TOP_C
DRUM_ERROR
CAP_ERROR
LM_-
HI8_MP_SW
XREC_PROF_SW
ME_SW
ME_SW
DRUM_ERROR
CAP_ERROR
CAP_VS
CAP_FG
CAP_FG
CAP_VS
XREEL_HALL_ON
DRUM_BRAKE
DRUM_BRAKE
STBY D
RF
OSC
SELSLP1
SELSLP2
VS
CSLP1
CSLP2
VCC1
BRAKE
FRC
FILTER
FC
RSAT
GND
FGOUT
N.C.
END OUT
END IN
TOP IN
TOP OUT
VM
VCC2
RLDO2
RLO2
RLM2
RLP2
GND
RLP1
RLM1
RLO1
RLDO1
FG IN2
FG IN
VREF
PG IN
PG OUT1
PGC
PG OUT2
CBEN
CBIN
CBOUT
CBLOUT
DBIN
DBOUT
ISNF
N.C.
RSB
AGC
COM
U IN
U OUT
V IN
V OUT
W IN
W OUT
DEC2
DEC1
RS
OUT1
RFL
OUT2
LIMEN
LIM OUT
(MT_GND)
LM(+)
TEPE_END(C)
Coil_U
VH-
LM(-)
REC_PROOF
TAPE_LED(K)
HV1
T_REEL(-)
GND(COM)
VCC
S_REEL(-)
Coil_V
Vo1
HW1
Coil_W
)
HV2
HU2
Coil_U
HU1
C
TAPE_TOP(C)
Coil_V
)
HALL_COM
VH+
Coil_W
HW2
HI8_MP
ME/MP
DEW
REG_GND
C_LOCK_SW
Vo2
TAPE_LED(A)
B
A
SENSOR_VCC
DRUM/LOADING MOTOR
DRIVE,REEL FG
DRUM FG/PG
WAVE SHAPER
IC451
CAPSTAN MOTOR
DRIVE
IC452
SWITCH
41
TO(10/12)
TO(7/12)
28
TO(3/12)
35
24
TO(9/12)
26
TO(11/12)
27
TO(7/12)
TO(8/12)
25
(PAGE 4-30)
(PAGE 4-30)
M
FG/PG
M901
M
DRUM
MOTOR
M903
LOADING
MOTOR
MECHANISM
BLOCK
(M2100)(2/2)
XX MARK:NO MOUNT
SERVO(SE BLOCK)
VC-272 BOARD(6/12)
Capstan speed servo
REC
SIGNAL PATH
Capstan phase servo
Drum speed servo
REC/PB
Drum phase servo
Capstan servo (speed and phase)
PB
Drum servo (speed and phase)
16
7
G
I
E
9
F
4
10
13
6
B
16
C
14
11
2
5
J
L
17
8
15
D
H
3
12
K
*
*
: Cannot be measured.