Servo) Schematic Diagram - Sony DCR-TRV820 Service Manual

DCR-TRV820/TRV820E/TRV820P
FP-38, FP-220, FP-221, FP-249, FP-355, FP-356 (MECHA DECK), VC-235 (SERVO) SCHEMATIC DIAGRAM
1 2 3 4
A
VC-235 BOARD (13/16)
SERVO (MD BLOCK)
-REF.NO.:10,000 SERIES-
XX MARK:NO MOUNT
NO MARK:REC/PB MODE
B R:REC MODE
P:Digital8 PB MODE
C:Hi8/Std8 PB MODE
*:IMPOSSIBLE TO MEASURE THE
VOLTAGE AT THE MARKED POINTS.
C
MECHA DECK (2/2)
FP-220
(B700 MECHANISM)
FIEXIBLE
S901
MODE SWITCH
D
M903
LOADING
MOTOR
E
M901
DRUM MOTOR
F
FP-38
FIEXIBLE
G
CAPSTAN MOTOR
H
FP-356
Q002
TAPE TOP
FIEXIBLE
Q001
FP-249 TAPE END
I
FIEXIBLE
HIB
4 MP
1 IN OUT
H001
S REEL
2 OUT IN 3
SENSOR
ME/MP
REC
PROOF
J 1 IN OUT 4
H002
T REEL
2
SENSOR OUT IN 3
S002
K
FP-355 FP-221
D001
FIEXIBLE FIEXIBLE
TAPE LED
05
L
MECHA DECK
FP-38, FP-220, FP-221, FP-249, FP-355, FP-356 VC-235 (13/16)
5 6 7 8
87
VC-235 BOARD (15/16) CAP_FG
CFG_DUTY
88 CFG_DUTY
VC-235 BOARD (14/16)
CAP_ON
CAP_ON
CAP_FWD
CAP_FWD
CAP_FG
80 VC-235 BOARD CAP_FG
(11/16,12/16) DRUM_FG
DRUM_FG
DRUM_PG
DRUM_PG
DEW_AD
DEW_AD R4404
R4402
81
VC-235 BOARD (11/16) DRUM_8PB 330k 100k
DRUM_8PB
XDRUM_BRAKE
83
VC-235 BOARD (12/16) XDRUM_BRAKE
R4401
DRUM_START
47k
DRUM_START
DRUM_ON
DRUM_ON
80 VC-235 BOARD
(11/16,12/16) MODE_SW_C
MODE_SW_C
MODE_SW_B
MODE_SW_B
MODE_SW_A
MODE_SW_A
8P CN4401 8P
8 COM_GND COM_GND 1
MODE_SW_A
7 M-SW(A) M-SW(A) 2
MODE_SW_B
6 M-SW(B) M-SW(B) 3
MODE_SW_C
5 M-SW(C) M-SW(C) 4
4 LM(-) LM(-) 5
M
3 LM(-) LM(-) 6 C4424
0.1u
2 LM(+) LM(+) 7
1 LM(+) LM(+) 8
CN4402
10P 10P
DRUM_PG_SENS
1 PG PG 1
PG FG FG_PG_COM
2 FG-PG_COM FG-PG_COM 2
DRUM_FG_SENS
3 FG FG 3
DRUM_COM
4 COM COM 4
5 W W 5
DRUM_W
6 W W 6
7 V V 7
DRUM_V
8 V V 8
9 U U 9
DRUM_U
10 U U 10
12P CN4403 12P
12 FG_OUT FG_OUT 1
R4405
CFG_DUTY
100k
11 OFFSET_ADJ OFFSET_ADJ 2
10 STAND_BY STAND_BY 3
CAP_FWD
9 FRC FRC 4
M
8 MT_GND MT_GND 5
7 MT_GND MT_GND 6
M902 6 VS VS 7
5 VS VS 8
4 VCC_2 VCC_2 9
3 VCC_1 VCC_1 10
2 REG_GND REG_GND 11
DEW_AD
1 DEW DEW 12
DEW SENSOR
15P 15P
CN4404
15 REG_GND REG_GND 1
TAPE_TOP_C
S001
14 TAPE_TOP(C) TAPE_TOP(C) 2
HI8_MP_SW
13 HI8_MP HI8_MP 3
S_REEL_-
12 S_REEL(-) S_REEL(-) 4
S_REEL_+
11 S_REEL(+) S_REEL(+) 5
10 ME/MP ME/MP 6
REC_PROOF_SW
9 REC_PROOF REC_PROOF 7
TAPE_END_C
8 TEPE_END(C) TEPE_END(C) 8
7 TAPE_LED(A) TAPE_LED(A) 9
6 HALL_COM HALL_COM 10
T_REEL_-
5 T_REEL(-) T_REEL(-) 11
T_REEL_+
4 T_REEL(+) T_REEL(+) 12
R4407 470
3 SENSOR_VCC SENSOR_VCC 13
2 TAPE_LED(K) TAPE_LED(K) 14
XCC_DOWN
1 C_LOCK_SW C_LOCK_SW 15
C LOOK
4-39
SERVO
/
• See page 4-11 for VC-235 printed wiring board. • See page 4-105 for waveforms.
9 10 11 12 13
DRUM_W
DRUM_V
DRUM_U
DRUM_COM
C4411 C4412
C4409 0.1u
0.1u
0.1u
36
1.7
C4413
64
0.1u
R4408 1
R4409 1 DRUM_ON
2.7
STBY D
R4410 1
0
RF
C4403 0.1u 0.5
OSC
DRUM_8PB R0/P0/C2.6
SELSLP1
DRUM_START 0
SELSLP2
C4404 0.1u R3.3/P3.3/C1.8
VS
C4405 0.022u 0.3
CSLP1
LM_- C4406 0.022u 0.3
CSLP2
C4401 0.1u 2.8
VCC1
XDRUM_BRAKE 2.7
R4415
R4413
XBRAKE
XX
LM_+ 0
C4407
FRC
R3.2/P3.2/C1.7
0.047u
FILTER
C4408
6.3V 2.1
FC
3.3u
2.8
RSAT
R4412 XX
GND
DRUM_FG 1.4
FGOUT
DRUM_PG
CAP_ON
37
17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32
C4415
CAP_FG
R4417 470p
10k
DRUM_FG_SENS
FG_PG_COM
DRUM_PG_SENS
C4416
0.1u
ME_SW
Q4401
2SC4738F-Y/GR(TPL3)
R4414 TAPE LED
R4411
ON/OFF SWITCH
82 270
4.2
R4416
0 4700
C4402 C4410 C4414
0.1u 0.1u 220p
14 15 16 17
R4421 XX
R4420 XX
R4428 R4429
1 1
63 62 61 60 59 58 57 56 55 54 53 52 51 50 49
C4433
0.001u
C4434
0.001u
NC C4428
0 0.047u
END OUT
1.3
END IN
1.3
TOP IN
0 C4429
0.047u
TOP OUT
C4430
4.9 2.2u
VM
8.2 C4431 0.1u
VCC2
IC4401
*
RLDO2
*
RLO2
LOADING/DRUM
1.2
MOTOR DRIVE
RLM2
SENSOR AMP
1.2
IC4401 RLP2
CXA8096R-TBM
GND
1.1
RLP1
1.1
RLM1
*
RLO1
38 39 *
RLDO1
R4432 R4436
47k 4700
R4437 0
C4425
R4438 0
0.022u
R4431 R4441
15k :NTSC MODEL
XX
R4423 0 47k :PAL MODEL
R4430
C4420 470k
R0/P0/C2.6
1u R4427
0 :NTSC MODEL
C4427
C4418
10k :PAL MODEL 0.01u
C4422 Q4403
470p
XX
R4424
C4426 Q4402
15k :NTSC MODEL
0.01u RN1104F(TPL3)
47k :PAL MODEL
DRUM Hi8/Std8 MODE SWITCH
NTSC MODEL:DCR-TRV820/TRV820P
PAL MODEL:DCR-TRV820E
SIGNAL PATH
REC
Drum speed servo
Drum phase servo
Drum servo(speed and phase)
Capstan speed servo
Capstan servo(speed and phase)
4-40
18 19 20 21
R4443
0
CAP_VS
R4444
0
VTR_UNREG
DRUM_VS
R4445
0
R4446
0
89
MT_5V VC-235 BOARD (16/16)
MT_GND
D4401
MA3XD21001S0
R4442
0
D_2.8V
REG_GND
LM_LIM_ON
LM_LIM_ON
81
LM_LIM_DET VC-235 BOARD (11/16)
LM_LIM_DET
UNLOAD
UNLOAD
LOAD
LOAD
TAPE_END
80
TAPE_END_C VC-235 BOARD (11/16,12/16)
TAPE_TOP_C
TAPE_TOP
TAPE_LED_ON
TAPE_LED_ON
TREEL_AFG
T_REEL_-
C4435
T_REEL_+ 470p
83
VC-235 BOARD (12/16)
S_REEL_+
C4436
S_REEL_- 470p
SREEL_AFG
SREEL_FG
XREEL_HALL_ON 81
VC-235 BOARD (11/16)
XREEL_HALL_ON
TREEL_FG
DRUM_ERROR
90
VC-235 BOARD (16/16)
CAP_ERROR
CAP_PWM
80 VC-235 BOARD (11/16,12/16)
DRUM_PWM
XCC_DOWN
76
XCC_DOWN VC-235 BOARD (10/16)
REC_PROOF_SW
REC_PROOF_SW 81
VC-235 BOARD (11/16)
HI8_MP_SW
HI8_MP_SW
XX
83
ME_SW VC-235 BOARD (12/16)
ME_SW
R4447
33k
T_REEL_-
T_REEL_EVR
R4448 61
VC-235 BOARD (8/16)
33k
S_REEL_-
S_REEL_EVR
REC/PB PB