DCR-TRV320/TRV320E/TRV320P/TRV420E/TRV520/TRV520E/TRV520P/TRV525
TRV620E/TRV720/TRV720E
4-35 4-36
VC-235 (Digital8 MECHANISM CONTROL) SCHEMATIC DIAGRAM • See page 4-11 for VC-235 printed wiring board. • See page 4-120 for waveforms.
Digital8 MECHANISM CONTROL
VC-235 (11/16)
2.8
0
R2.8/P0/C2.6
0.1
1.4
*
*
0
1.4
R0/P0/C2.7
1.4
1.4
1.4
0.6
0.1
2.8
R0/P2.8/C2.8
0
0
R1.4/P1.4/C2
0
0
2.8
R1.4/P0.1/C1.4
2.8
2.8
2.8
0
2.8
0
2.8
R2.4/P2.4/C0.4
2
2.3
2.3
0
2.8
0
2.1
0.3
2.7
0
2.7
2.8
P0.6/P0.6/C0.3
R1.1/P1.1/C0.5
2.8
0
R1.4/P1.4/C2.8
1.4
1.4
R1.2/P2.8/C1.2
0
2.8
2.8
0.1
0
0
2.8
0
0
0
2.8
2.8
R0/P0/C2
2.8
2.8
0
R0.3/P0.2/C0.2
2.2
2.2
2.3
2.7
0
0
R1.8/P1.2/C1.9
R1.3/P1.7/C2
R1.1/P1.4/C0.7
R1.4/P0.8/C1.4
R1.7/P0.9/C1
R2.1/P1.6/C1.5
R2.4/P1.5/C2.3
2.8
2.7
2.7
2.8
2.8
2.6
2.8
2.7
2.8
0
0
0
2.8
R2.8/P0/C2.8
2.7
2.8
2.8
1.3
1.1
2.8
2.7
0.3
2.1
2.8
2.8
2.8
NO MARK:REC/PB MODE
R:REC MODE
P:Digital8 PB MODE
C:Hi8/Std8 PB MODE
*:IMPOSSIBLE TO MEASURE THE
VOLTAGE AT THE MARKED POINTS.
33
:NTSC MODEL
:PAL MODEL
NTSC MODEL:DCR-TRV320/TRV320P/TRV520/TRV520P/TRV525/TRV720
PAL MODEL:DCR-TRV320E/TRV420E/TRV520E/TRV620E/TRV720E
MB91192PFF-G-114-BND-ER
IC4501
1
X0
2
X1
3
VSS
4
MD2
5
MD1
6
MD0
7
XSYS_RST
8
XPWAD
9
XPWDA
10
XRST_LINK
11
XRST_PHY
12
ANALOG_MUTE/PLUG_CONT/DEBUG_OUT0
13
ALE
14
XDVCN
15
WR01
16
RDX
17
XCS_VFD
18
XCS_TAKO
19
XCS_DAC
20
AUDIO_IN
21
XCS_XYZ1
22
XHP_ON/XCC_DOWN
23
XCS_TRF
24
XCS_XYZ2
25
VDD
26
MCDA0
27
MCDA1
28
MCDA2
29
MCDA3
30
MCDA4
31
MCDA5
32
MCDA6
33
MCDA7
34
VSS
35
MCHA0
36
MCHA1
37
MCCE
38
XCS_SFD
39
MODE_SW_A
40
MODE_SW_B
41
MODE_SW_C
42
MODE_SW_D
43
VIDEO_IN/PB_XREC
44
REC_PROOF
45
CAP_ON
46
CAP_FWD
47
DRUM_ON
48
DRUM_FWD
49
LM+
50
LM-
51
LM_LIM_ON/CM_LIM_ON
52
LM_LIM_DET/CM_LIM_DET
53
TAPE_TOP
54
TAPE_END
55
TAPE_LED_ON/ME_F_BUSY
56
REC_CRRT0/DEBUG_OUT1
57
REC_CRRT1/DEBUG_OUT2
58
SCOD_WINDOW
59
XFE_ON/REEL_FWD
60
SWP
61
DRP
62
SWP_75Hz
/REEL_ON
63
DRUM_START
/DRUM_MASTER_CLOCK
64
VDD
65
N.C.(XTAL)
66
GND(EXTAL)
67
VSS
68
DRUM_PWM
69
CAP_PWM
70
REEL_PWM
71
XCS_HONEY/AFT_DEBUG
72
XHI_CS_MC
73
XCS_MC_FLASH/CAP_HICUE
74
XVSP_SCK
75
VSP_SO
76
VSP_SI
77
LPS
78
XDRP_SCK
79
DRP_SO
80
DRP_SI
81
XHI_SCK
82
HI_SI(MC
t
HI)
83
HI_SO(HI MC)
84
LIP_SLEEP
85
HP_JACK_IN
86
DEM0
87
DEM1/XCS_DSP
88
XCS_EEP
89
EEP_RST
90
EEP_RDY/BSY
91
OOE
92
XRST_VTR
93
XCASETTE_IN
94
SDC_IN/ATF_DEBUG_IN
95
ATF_ERR
96
DEW_DET
97
PLUG_DC_LEVEL/L_CASETTE
98
NC/S_ELTN_ERR
99
RF_ENV_DET/T_ENLTN_ERR
100
AVDD
101
AVRH
102
AVSS
103
VSS
104
BBI_LINE_X8/CM+
105
XREEL_HALL_ON/CM-
106
FRRV
107
TRRT
108
TRRV
109
CFG_COUNT
110
CFG_COUNT
111
DRUM_8PB/PLUG_DC_SW/FP_SEL
112
VREF/FP
113
SREEL_FG
114
TREEL_FG
115
CAP_FG
116
DRUM_FG
117
DRUM_PG
118
EXVSYNC
119
FP/REELM_FG
120
VDD
C4505
0.01u
IC4502
1
XCS
2
XSCK
3
DI
4
DO
5
GND
6
RST
7
XBUSY
8
Vcc
0.01u
C4507
REG_GND
D_2.8V
MODE_SW_A
MODE_SW_B
MODE_SW_C
REC_PROOF_SW
CAP_ON
CAP_FWD
CAP_PWM
CAP_FG
DRUM_ON
DRUM_START
DRUM_PWM
DRUM_FG
DRUM_PG
LOAD
UNLOAD
LM_LIM_ON
LM_LIM_DET
TAPE_LED_ON
TAPE_TOP
TAPE_END
SREEL_FG
TREEL_FG
XREEL_HALL_ON
DEW_AD
R4507
1k
0.001uC4501
470k
R4508
100k
R4525
100k
R4524
100k
R4527
100k
R4514
100k
R4504
100k
R4505
DRP
XVSP_SCK
VSP_SO
LPS
LIP_SLEEP
DEM0
DEM1
MCDA5
MCDA6
MCDA7
MCHA0
MCHA1
MCCE
XCS_SFD
REC_CRRT0
REC_CRRT1
SCOD_WINDOW
SWP
VFI_OE
MCDA2
MCDA3
MCDA4
XRST_VSP
FRRV
TRRT
TRRV
XPWAD
XPWDA
MCDA0
RDX
WRX
XCS_AU
XCS_TRF
ALE
XCS_TAKO
XRST_PHY
XCS_VFD
MCDA1
XRST_LINK
470k
R4523
VSP_SI
SDC_IN
VREF
IFI_VD
OFR
HP_JACK_IN
R4502
100k
R4503
100k
ATF_ERR
470k
R4526
XVIDEO_IN
4700R4512
0.01u
C4506
1u
C4504
1k
R4520
XCS_HONEY
DV_RF_SWP
XDVCN
1kR4511
DRUM_8PB
XFE_ON
RF_ENV_DET
10k
R4522
10k
R4521
FB4501
0uH
HI_SO
XHI_SCK
XCS_MECHA
HI_SI
XSYS_RST
XTAL20M
0
R4515
0
R4518
0
R4517
0R4516
100k
R4528
100k
R4529
X0
0.01u
C4508
470R4530
AU_XIN/OUT
0.01u
C4509
0.01u
C4510
0
R4531
0
R4532
0
R4533
0
R4534
CL4501
CL4502
VC_F_BUSY
HI_RXD
XXCN1106
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
HI_XRESET
VC_SO
HI_TXD
HI_TEST_A
XCS_VC_STAR
VC_SI
XVC_SCK
1
A
XDRP_SCK
DRP_SO
VSP_SO
XVSP_SCK
SWP
DRUM_8PB
MT_5V
XVSP_SCK
VSP_SO
VSP_SI
ALE
WRX
RDX
MCDA0
MCDA1
MCDA2
MCDA3
MCDA4
SCOD_WINDOW
MCCE
MCHA1
MCHA0
MCDA7
MCDA6
MCDA5
LIP_SLEEP
VREF
DRP
TRRV
XCS_VFD
XVIDEO_IN
LPS
XHI_SCK
HI_SI
HI_SO
VFI_OE
XRST_VSP
XRST_LINK
XRST_PHY
SWP
XCS_SFD
OFR
IFI_VD
XPWAD
XPWDA
XCS_MECHA
XDRP_SCK
DRP_SI
XCS_TAKO
XCS_AU
XCS_TRF
VSP_SI
DRUM_PG
DRUM_FG
XREEL_HALL_ON
TAPE_END
TAPE_TOP
LM_LIM_DET
LM_LIM_ON
DRUM_ON
CAP_FWD
CAP_ON
CAP_FG
ATF_ERR
FRRV
TRRT
TAPE_LED_ON
MC_F_BUSY
DV_RF_SWP
DRUM_START
XCS_MC_FLASH
XFE_ON
RF_ENV_DET
DEW_AD
XVSP_SCK
VSP_SO
VSP_SI
XCS_VFD
XCS_AU
XCS_HONEY
XCS_TRF
XRST_VSP
SDC_IN
DEM0
DEM1
XPWAD
XPWDA
VFI_OE
VREF
TRRV
WRX
RDX
FRRV
TRRT
DRP
ALE
XDVCN
XRST_LINK
XRST_PHY
LIP_SLEEP
LPS
OFR
MCDA0
MCDA1
MCDA2
MCDA3
MCDA4
MCDA5
MCDA6
MCDA7
MCHA0
MCHA1
MCCE
ATF_ERR
CAP_PWM
DRUM_PWM
MODE_SW_A
MODE_SW_B
MODE_SW_C
CAP_ON
CAP_FWD
CAP_PWM
CAP_FG
DRUM_ON
DRUM_START
DRUM_PWM
DRUM_FG
DRUM_PG
LOAD
UNLOAD
LM_LIM_ON
LM_LIM_DET
TAPE_LED_ON
TAPE_TOP
SREEL_FG
TREEL_FG
XREEL_HALL_ON
UNLOAD
LOAD
MODE_SW_A
MODE_SW_B
MODE_SW_C
REC_PROOF_SW
DEM1
DEM0
TREEL_FG
SREEL_FG
DRP_SO
HP_JACK_IN
XDVCN
HP_JACK_IN
VSP_SO
XVSP_SCK
AU_XIN/OUT
AU_XIN/OUT
SDC_IN
XCS_HONEY
REC_CRRT0
REC_CRRT1
MC_F_BUSY
XCS_MC_FLASH
XDRP_SCK
DRP_SO
DRP_SI
HI_TEST_A
HI_TXD
HI_RXD
HI_XRESET
XCS_VC_STAR
XVC_SCK
VC_SO
VC_SI
VC_F_BUSY
HI_TEST_A
HI_TXD
HI_RXD
HI_XRESET
XCS_VC_STAR
XVC_SCK
VC_SO
VC_SI
VC_F_BUSY
DV_RF_SWP
DRUM_8PB
RF_ENV_DET
XVSP_SCK
VSP_SO
VSP_SI
DRP_SO
XDRP_SCK
DRUM_8PB
IFI_VD
SCOD_WINDOW
DEW_AD
DRUM_8PB
TAPE_END
REC_PROOF_SW
SWP
XVIDEO_IN
XFE_ON
REC_CRRT1
REC_CRRT0
XCS_SFD
XCS_TAKO
XVSP_SCK
VSP_SO
XCS_MC_FLASH
HI_RXD
VC_F_BUSY
REG_GND
HI_XRESET
XVC_SCK
MT_5V
HI_TEST_A
DRP_SO
XCS_VC_STAR
DRP_SI
MC_F_BUSY
VC_SI
XDRP_SCK
HI_TXD
VC_SO
834
I
05
17
B
2
E
1171215
VC-235 BOARD (11/16)
9
D
C
G
1816
H
L
F
65
K
13 1410
J
IC4501
Digital8 MECHANISM CONTROL
IC4502
EEP ROM
80
VC-235 BOARD
(12/16,13/16)
-REF.NO.:10,000 SERIES-
Digital8 MECHANISM CONTROL (MC BLOCK)
XX MARK:NO MOUNT
VC-235 BOARD (16/16)
79
81
VC-235 BOARD (13/16)
75
VC-235 BOARD (10/16)
82
VC-235 BOARD (12/16)
70
VC-235 BOARD (10/16)
VC-235 BOARD
(5/16,6/16,10/16,12/16)
33
28
VC-235 BOARD (5/16)
38
VC-235 BOARD (6/16)
77
VC-235 BOARD (15/16)
57
VC-235 BOARD (8/16)
27
VC-235 BOARD (4/16)
78
VC-235 BOARD (12/16)
77
VC-235 BOARD (15/16)
35
VC-235 BOARD (5/16)
38
VC-235 BOARD (6/16)
51
VC-235 BOARD (7/16)
65
VC-235 BOARD (9/16)
Capstan servo(speed and phase)
Capstan speed servo
REC/PB
Drum servo(speed and phase)
REC
SIGNAL PATH
Drum speed servo
Drum phase servo
PB
BR9016RFV-E2
AK6417AM-E2
t
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