Servo - Sony CCD-TR618 Service Manual

For Schematic Diagram
• Refer to page 4-39 for printed wiring board.
• Refer to page 4-69 for waveforms.
1 2 3
24
TO(9/11)
VC-251 BOARD(6/11)
A
25
SERVO(SB BLOCK) TO(8/11)
-REF.NO.:10000 SERIES-
26
TO(7/11,11/11)
XX MARK:NO MOUNT
NO MARK:REC/PB MODE
R :REC MODE
P :PB MODE
XREC_PROF_SW
B
27
TO(7/11)
C
B MECHA DECK(2/2)
(B200:NTSC MODEL)
FP-220
D
(B201:PAL MODEL)
FLEXIBLE S901
MODE SWITCH
M
M903
LOADING
MOTOR
E
PG
M901
DRUM MOTOR
F
FP-433
FG
FLEXIBLE
G
M
M902
CAPSTAN MOTOR
DEW SENSOR
H
FP-356
Q001
FLEXIBLE
TAPE TOP
FP-249
Q002
TAPE END S001
FLEXIBLE
HI8
MP
I
IN
OUT
H002
S REEL
OUT ME/MP
SENSOR
IN REC
PROOF
IN
H001
J OUT
T REEL
SENSOR
OUT
IN
S002 C LOCK
FP-221
D001
FP-355
K FLEXIBLE FLEXIBLE
TAPE LED
16
4 5 6 7
CFG_DUTY
CFG_DUTY
DEW_AD
DEW_AD
XCC_DOWN
XCC_DOWN
CAP_FG
CAP_FG
CAP_FWD
CAP_FWD
HI8_MP_SW
HI8_MP_SW
DRUM_W
ME_SW
ME_SW DRUM_V
XREC_PROF_SW
DRUM_U
CAP_ON
CAP_ON
DRUM_COM
DRUM_FG C461
C459
DRUM_FG
0.1u
0.1u
DRUM_PG B
DRUM_PG
1005 1005
RB451
R452
330k
100k
DRUM_ON
DRUM_ON
DRUM_START
DRUM_START
R451
47k
R458
MSW_C 1
MSW_C 2012
MSW_B R459
MSW_B
1
MSW_A 2012
MSW_A
R460
1
2012 C453
0.1u
1005
CN704 8P
D451
COM_GND 1 XX
MSW_A
C454
M-SW(A) 2
0.1u
MSW_B C455
M-SW(B) 3
0.022u B 1005
MSW_C C456
M-SW(C) 4
0.022u B 1005
LM_-
LM(-) 5
C451
0.1u
LM(-) 6
B
1005
LM_+
LM(+) 7
C457
LM(+) 8
CN706 10P
C458 4.7u
DRUM_PG_SENS
PG 1
FG FG_PG_COM
FG-PG_COM 2
DRUM_FG
DRUM_FG_SENS
FG 3
DRUM_PG
DRUM_COM
COM 4 CAP_ON
DRUM_W
W 5
W 6
DRUM_V
V 7
V 8
DRUM_U
U 9
U 10
CN707 12P
CAP_FG
FG_OUT 1
CFG_DUTY
OFFSET_ADJ 2
R455
CAP_ON
100k
STAND_BY 3
CAP_FWD
FRC 4
MT_GND 5
MT_GND 6
CAP_VS
VS 7
VS 8
VCC_2 9
VCC_1 10
REG_GND 11
DEW_AD
DEW 12
R462
150
1608
R461
180
CN712 15P
1608
REG_GND 1
TAPE_TOP_C
TAPE_TOP(C) 2
HI8_MP_SW
HI8_MP 3
S_REEL_- C460
S_REEL(-) 4
C452 0.1u
S_REEL_+
0.1u
S_REEL(+) 5
B 1005
ME_SW
1005
ME/MP 6
XREC_PROF_SW
REC_PROOF 7
TAPE_END_C
TEPE_END(C) 8
TAPE_LED(A) 9
HALL_COM 10
T_REEL_-
T_REEL(-) 11
T_REEL_+
T_REEL(+) 12
R457 470
SENSOR_VCC 13
TAPE_LED(K) 14
XCC_DOWN
C_LOCK_SW 15
4-53
CCD-TR618/TR618E/TR718E/TR728E/TR818/TRV49/TRV49E/TRV58/
8 9 10
C474 R468
0.1u 3300
B
1005
C462
0.1u
B B
1005
C463
64 63 62 61 60 59 58 57 56 55 54 53 52 51 50
0.1u
B
1005
2.8
DRUM_ON
STBY D 36
0
RF
0.5
OSC
B
SELSLP1
DRUM_START
0
IC451
SELSLP2
R1.3/P1.5
VS
B 1005 R0.2/P0.3
CSLP1
DRUM DRIVE
0.3
LD DRIVE
CSLP2
REEL FG
DRUM FG/PG
VCC1
WAVE SHAPER
C485 BRAKE
XX IC451
B
1608 FRC CXA8096R
R1.2/P1.4
FILTER
0.047u 1005 B
2.1
FC
35V
RSAT
38 37 39 40
GND
1.4
FGOUT
17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32
C475
C465 C473
0.022u
*
4700p
B
B
B 1005
1005
DRUM_FG_SENS
FG_PG_COM
DRUM_PG_SENS
R470
R466
* *
C466
C472
C468 C470 R467
0.1u
1u * *
470p
B
B
1005 B B
C472, C473, R466, R467, R470, R480
XX XX 0 15K 0 15K :NTSC MODEL
4700P 0.022 47K 10K 47K :PAL MODEL
10K
NTSC MODEL :CCD-TR618/TR818/TRV49/TRV58/TRV68/TRV78/TRV88/TRV98
PAL MODEL :CCD-TR618E/TR718E/TR728E/TRV49E/TRV58E/TRV59E/TRV78E/TRV98E
TR MODEL :CCD-TR618/TR618E/TR718E/TR728E/TR818
TRV MODEL :CCD-TRV49/TRV49E/TRV58/TRV58E/TRV59E/TRV68/TRV78/TRV78E/TRV88/TRV98/
R464 TRV98E
470
SIGNAL PATH
4.1
1 R465
4700
0
2
Drum speed servo
C464
B
220p
3
B
1608 Drum phase servo
Q451
Drum servo (speed and phase)
2SC4617HT2 :TR MODEL
2SD2216J-Q :TRV MODEL
TAPE LED DRIVE
Capstan speed servo
Capstan servo (speed and phase)
TRV58E/TRV59E/TRV68/TRV78/TRV78E/TRV88/TRV98/TRV98E
11 12 13
DRUM_ERROR
CAP_VS
CAP_ERROR
R471
1
R472
1
RB452
10k
49 C481
0.001u
B
UNLOAD
1005
LOAD
XLM_LIM_ON
LM_LIM_CONT
C482
C477
0.001u
0.047u
NC
B B
R0/P2.8
1005 1005
END OUT
1.3 TAPE_END_C
END IN
1.3 TAPE_TOP_C
TOP IN
R0/P2.8
C478 0.047u B 1005
TOP OUT
C479 2.2u 2012 F
4.8 TAPE_LED_ON
VM
8.3
VCC2
C480
0.1u
RLDO2
B
R1.9/P1.3
1005
RLO2
2.1 T_REEL_-
RLM2
C483
2.1 T_REEL_+
470p
RLP2
B
GND
2.1 S_REEL_+
C484
RLP1
470p
2.1 S_REEL_-
B
RLM1
1.7
RLO1
RLDO1
XREEL_HALL_ON
R481
R474
47k 4700
DRUM_ERROR
CAP_ERROR
C476
0.01u
R480
B
*
1005
REC REC/PB PB
4-54
14
VTR_UNREG
DRUM_VS
DRUM_ERROR
CAP_VS
CAP_ERROR
41
TO(10/11)
MT_4.75V
D_2.8V
REG_GND
UNLOAD
LOAD
XLM_LIM_ON
LM_LIM_CONT
TAPE_END
TAPE_TOP
TAPE_LED_ON
TREEL_FG
28
TO(7/11)
SREEL_FG
XREEL_HALL_ON
CAP_PWM
DRUM_PWM
REG_GND 35
TO(3/11)
(MT_GND)

SERVO

VC-251 (6/11)