Sony DSR-250, Service Manual

Page: 101 / 322

DSR-250/250P
4-29 4-30
MECHA CONTROL
VI-156 (9/25)
For Schematic Diagram
• Refer to page 4-63 for printed wiring board.
• Refer to page 4-123 for waveform.
NO MARK:REC/PB MODE
R :REC MODE
P :PB MODE
52
3.0 1.4 0.1 1.5 0 * 0 1.4 0 0 0 1.5 0.6 1.5 3.0 3.0 2.4 3.0 1.3 3.0 0 1.5 0 2.8 1.5 3.0 0
R2.9/P0.4
2.7
0
0.5
3.0
0
0
1.5
3.0
0
2.7
3.0
3.0
3.0
3.0
2.9
2.6
2.6
2.9
0
2.9
0.1
2.9
0
0.7
3.0
1.5
3.0
2.3 2.2 3.0 1.3 2.5
R1.7/P1.2
3.0 3.0 3.0 2.9
0.3
2.8 2.8 0 2.8 0
0 0
3.0
0
2.9 2.9 3.0
0.1
3.0 3.0
0
1.5
0 0 0
0 0 0
3.0
3.0
0
0 3.0
3.0
3.0
3.0
3.0
3.0
2.9
0.1
2.7
R0.1/P0
1.1
1.0
0
3.0
3.0
3.0
3.0
R3.0/P0
0
0
0
0
3.0
3.0
3.0
2.9
0
0
3.0
0
0
R3.0/P2.9
3.0
3.0
R2.5/P1.6
0
R1.4/P0.9
R1.5/P1.0
1.5
MB91192PFF-G-120-BND
IC501
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
13
ALE
14
XDVCN
15
WR01
16
RDX
17
XCS_VFD
18 XCS_AOI
19
XCS_DAC
20
AUDIO_IN
21
XCS_XYZ1
22
XHP_ON
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
44
REC_PROOF
45
CAP_ON
46
CAP_FWD
47
DRUM_ON
48
DRUM_FWD
49
LM+
50
LM-
51
LM_LIM_ON
52
LM_LIM_DET
53
T
APE_TOP
54
T
APE_END
55
T
APE_LED_ON
56
REC_CRR
T0
57
REC_CRR
T1
58
SCOD_WINDOW
59
XFE_ON/REEL_FWD
60
SWP
61 DRP
62 SWP_75Hz
63 DRUM_START
64 VDD
65 N.C.(XTAL)
66 GND(EXTAL)
67
VSS
68
DRUM_PWM
69 CAP_PWM
70 REEL_PWM
71 XCS_HONEY
72 XHI_CS_MC
73 XCS_MC_FLASH
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 → HI)
83 HI_SO(HI
→
MC)
84 LIP_SLEEP
85 HP_JACK_IN
86 DEM0
87 DEM1
88
XCS_EEP
89
EEP_RST
90 EEP_RDY/BSY
91
OOE
92
XRST_VTR
93
XCASETTE_IN
94
SDC_IN
95
A
TF_ERR
96
DEW_DET
97
PLUG_DC_LEVEL
98
NC
99
RF_ENV_DET
100
A
VDD
101
A
VRH
102
A
VSS
103
VSS
104
BBI_LINE_X8
105
XREEL_HALL_ON
106
FRRV
107
TRR
T
108
TRRV
109
CFG_COUNT
110
CFG_COUNT
111
DRUM_8PB/PLUG_DC_SW
112
VREF
113
SREEL_FG
114
TREEL_FG
115
CAP_FG
116
DRUM_FG
117
DRUM_PG
118
EXVSYNC
119
FP
120
VDD
AK6417AM-E2
IC502
1 XCS
2 XSCK
3 DI
4 DO 5 GND
6 RST
7 XBUSY
8 Vcc
0.01u
B
C507
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
R507
1k
0.001u B C501
470k
R512
100k
R528
100k
R527
100k
R532
100k
R516
100k R503
100k R504
DRP
XVSP_SCK
VSP_SO
LPS
XDRP_SCK
DRP_SO
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_AU1
XCS_TRF
ALE
XCS_IO
XRST_PHY
ANALOG_MUTE
XCS_VFD
MCDA1
XRST_LINK
VSP_SI
SDC_IN
VREF
IFI_VD
OFR
R501 100k
R502 100k
470k R505
ATF_ERR
10k
R531
XVIDEO_IN
4700
R514
0.01u
B
C506
0.01u
B
C505
XCS_HONEY
XDVCN
DRUM_FWD
1k
R513
0 R525
0 R524
FB501
HI_SO
XHI_SCK
XCS_MECHA
HI_SI
XSYS_RST
150 R522
220
R521
150 R520
220 R523
R506
XX
10p
CH
C503
10p
CH
C502
XAUDIO_IN
470k
R508
470k
R509
470k
R510
0.1u
B
C504
0
R515
DRP_SI
DRP_SO
XDRP_SCK
XCS_MC_FLASH
MC_F_BUSY
47k
±
0.5%
R517
220k
±
0.5%
R518
TA
C508
6.3V
10u
C509
1u
MODE_SW_D
470k
R511
XCS_EVR_DAC
XCS_AU2
REEL_ON
REEL_FWD
CM+
T_ENLTN_ERR
S_ELTN_ERR
L_CASSETTE
1k
R536
0.01u
B
C510
1k
R535
TC7W241FU-TE12R
IC503
1 2 3 4
5 6 7 8
REEL_M_FG 470k
R533
XC_IN
REEL_PWM
XCC_DOWN
470k
R534
TC7W241FU-TE12R
IC504
1 2 3 4
5 6 7 8
EVER_3.0V
VTR_DD_ON
0.01u
B
C511
20MHz
X501
1k
R537
1k
R538
1k
R539
1k
R540
1k
R542
0.001u B C512
0.001u
B
C513
0.001u B
C514
0.001u
B
C515
0.001u
B
C516
CL501
CL502
HICUE
1
A
ALE
WRX
RDX
MCDA0
MCDA1
MCDA2
MCDA3
MCDA4
SCOD_WINDOW REC_CRR
T1
REC_CRR
T0
MCCE MCHA1 MCHA0 MCDA7 MCDA6 MCDA5
LIP_SLEEP
DRP
TRRV
XCS_VFD
XVIDEO_IN
XHI_SCK
HI_SI
HI_SO
VFI_OE
XRST_VSP
XRST_LINK
XRST_PHY
SWP XCS_SFD
IFI_VD
XPWDA
ANALOG_MUTE
XCS_MECHA
XCS_IO
XCS_AU1
XCS_TRF
VSP_SI
DRUM_PG DRUM_FG
XREEL_HALL_ON
T
APE_END
T
APE_TOP
LM_LIM_DET LM_LIM_ON DRUM_FWD DRUM_ON CAP_FWD CAP_ON
CAP_FG
A
TF_ERR
XCS_HONEY
T
APE_LED_ON
DRUM_START
XVSP_SCK
VSP_SO
XDRP_SCK
DRP_SO
XCS_TRF
DEM0
DEM1
XPWAD
XPWDA
ANALOG_MUTE
VFI_OE
TRRV
WRX
RDX
FRRV
TRRT
DRP
ALE
XDVCN
XRST_LINK
XRST_PHY
LIP_SLEEP
LPS
MCDA0
MCDA1
MCDA2
MCDA3
MCDA4
MCDA5
MCDA6
MCDA7
MCHA0
MCHA1
MCCE
SCOD_WINDOW
ATF_ERR
REC_CRRT0
REC_CRRT1
CAP_PWM
DRUM_PWM
DRUM_FWD
REC_PROOF_SW
DEW_AD
CAP_ON
CAP_FWD
CAP_PWM
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
UNLOAD LOAD
DEM1
DEM0
TREEL_FG SREEL_FG
IFI_VD
XDVCN
VSP_SO
XVSP_SCK
XAUDIO_IN
XPWAD
SDC_IN
XDRP_SCK
LPS
DRP_SO
DRP_SI
DEW_AD
TRR
T
FRRV
MODE_SW_D
XCS_HONEY
XAUDIO_IN
XCS_AU1
XCS_AU2
XCS_EVR_DAC
XCS_AU2
XCS_EVR_DAC
MODE_SW_A MODE_SW_B MODE_SW_C MODE_SW_D REC_PROOF_SW
CAP_FG
XCS_IO
SDC_IN
XVIDEO_IN
SWP
XRST_VSP
VSP_SI
XCS_VFD
XCS_SFD
MD2
MD1
MD0
O
O
16
XX MARK:NO MOUNT
MECHA CONTROL(MC BLOCK)
VI-156 BOARD(9/25)
-REF.NO.: 10000 SERIES-
10
G
H
5 13
L
6
E
3 8
B
12
D
C
9 2 4 7
J
I
17 16 18
F
K
11 15 14
TO(10/25)
68
MECHA CONTROL
IC501
TO(3/25,5/25,
7/25,19/25,
20/25)
27
TO(3/25)
28
TO(20/25)
69
70
TO(19/25)
71
TO(19/25)
TO(20/25)
72
TO(12/25)
73
TO(7/25)
63
TO(5/25,12/25,
22/25) 46
74
TO(20/25)
TO(19/25,20/25)
75
TO(2/25,8/25)
18
76
TO(10/25)
40 TO(3/25,4/25,
5/25)
45
TO(5/25)
TO(5/25) 52
77
TO(12/25)
6
TO(25/25)
TO(25/25)
16
TO(11/25) 78
TO(10/25)
79
TO(17/25)
80
81
TO(17/25)
TO(10/25,17/25)
82
TO(10/25)
83
TO(11/25)
84
TO(10/25)
85
TO(11/25)
86
87 TO(10/25)
88
TO(11/25)
TO(10/25)
89
TO(10/25)
90
91
TO(11/25)
92
TO(10/25)
TO(10/25)
93
TO(11/25)
94
95 TO(10/25)
TO(22/25)
96
TO(10/25,22/25)
97
TO(22/25)
TO(4/25,8/25,13/25,
17/25,22/25,23/25) 34
35
32
TO(17/25)
98
100
99
TO(10/25)
TO(17/25)
26
TO(4/25,8/25,13/25,
16/25,17/25)
TO(4/25,8/25,13/25,
16/25,17/25,22/25,23/25)
Ref.signal
IC502
EEPROM
AMP
IC503
IC504
AMP
REC/PB
Drum speed servo
Drum servo (speed and phase)
Capstan speed servo
REC PB
Capstan servo (speed and phase)
Drum phase servo
SIGNAL PATH