8.4. SYSTEM CONTROL & SERVO SECTION IN MAIN SCHEMATIC DIAGRAM
H
1
C6023
A32
R6081 220
0.1
C2514
4
3
2
1
68u
L6005
0.1
C1501
CYLINDER SERVO PHASE LOOP
CYLINDER SERVO SPEED LOOP
CAPSTAN SERVO PHASE LOOP
CAPSTAN SERVO SPEED LOOP
TL2502
180
R1502
1
2
RP1354N
IC1501
4
(T-REEL)
3
(S-REEL)
RP1354N
IC1502
1
2
4
3
27K
R1503
27K
R1504
1K
R6003
C11
C10
C9
(AMP)
2SD601A
Q6009
6V47
C6024
(AMP)
2SB709A
Q6002
B26
0
R6043
B25
22K
R6009
560P
C6036
1M
R6077
470
R6078
1
C6035
C6014 1000P
R6008 47K
1K
R6039
220P
C6022
C8
C7
C6
C5
C4
C3
C2
C1
A33
A34
A35
10K
R2504
10K
R2503
0.056
C2505
0.056
C2507
0
R2501
0.056
C2506
1K
R2502
A17
A18
A19
A20
A21
A23
TL2503
TW6002
R6013 220
R6011 220
R6012 220
1K
R6002
470P
C6003
0.01
C6005
1K
R6040
1K
R6041
B24
0.56u
L6002
120P
C6006
150P
C6007
R1505 100
B23
B22
B3
B1
B2
B21
B20
B19
B18
B17
1000P
C6008
TL6012
TL6013
R6010 4700
A31
R6027 220
A14
R6028 220
R6024 4700
A13
A12
4700
R6029
4700
R6030
A29
R6014 470
A11
R6015 470
A10
R6035 470
A28
R6036 470
A27
A9
0.47
C2509
3900
R2505
TW2015
33P
C2510
1M
R2506
MA165
D2502
MA165
D2501
A26
A25
6V22
C2511
25V4.7
C2512
680P
C6017
6800
R6031
A8
A7
0.1
C2508
3900P
C2513
TW2002
+5V(AD)
+5V(A)
PB CTL OUT
CTL AMP REF
CTL HEAD(+)
CTL HEAD(-)
GND
I REF
O REF
PFG
GND
GND(A)
FG AMP IN
FG AMP OUT
OSD IIC DATA
OSD IIC CLOCK
MAIN IIC DATA
MAIN IIC CLOCK
EEP WR
DAVN
PULSE
S-REEL
PULSE
T-REEL
5P DATA OUT
5P DATA IN
5P CLOCK
DATA OUT
FLD/T2
DATA IN
FLD/T2
CLOCK
FLD/T2
FLD CS
125Hz
CAP F/R
HALF WAVE
CYL ET
CAP ET
P50 OUT
IR
NAVI DATA
OSD PULSE
PAL-I/GB/DK
SECAM/PAL
C SYNC
(EDS)
CV IN
V HOLD
HLF
CV OUT
MD0
LECA
GND(OSD)
CV IN
+5V(OSD)
OSD FSC IN
4FC LPF
RESET
LC.OSC OUT
LC.OSC IN
P50 IN
FIP
POWER OFF
POS.SW1
POS.SW2
POS.SW3
POWER KEY
FULL ERASE
FM MUTE
BIAS
D.A.REC
D.REC
V.EE
VC OUT
32KHz OUT
32KHz IN
+5V(D)
20MHz OUT
20MHz IN
GND(D)
AVPB
AV1 PB
BW
A.DEF
AUDIO H.SW
VIDEO H.SW
ET REC
AV3 S IN
S SW
ART V/H/N
D.FM REC
SECAM ID IN
S-VHS
SPB /MES /NOR
ABS NORM
T-PHOTO
S-PHOTO
N/S/T1/T2
AV1 PB +12V
RFC MUTE
AFC S
CPB
LP
SLP
TRACKING ENV.
60Hz PB
S CAS
F ADJ.
LIMIT
CURRENT
M37970VXHR
IC6001
220K
R6004
VSX0660
X6001
18P
C6009
0
R6005
18P
C6010
18P
C6011
15P
C6012
500014
H0D200-
X6002
B16
0.1
C6013
1K
R6017
TW2001
BACK UP 5V
T
AV PB 12V
A
V
OSD VIDEO OUT
SHORT DET
RESET
FIP
POWER OFF
POWER KEY
FULL ERASE
MUTE
BIAS
D.A.REC
V.EE
HEAD SW
AUDIO DEF
A.HEAD SW
ET REC
AV3 S-VHS IN
ART V/H/N
D.FM REC
S-VHS
NORMAL
A
V
T
R
R
T
V
V A
V
V
V
V
R
A
V
A
V
A
V
V
B26
B25
B24
B23
B22
B21
B20
B19
B18
B17
B16
B15
B13
B12
B11
B10
B9
B8
B6
B5
B4
ABS NORMAL
A
00002
K0G934A-
S1501
SW
MODE
B3
B2
B1
15K
R6076
22K
R6075
470
R6074
1SS355
D6004
18K
R6071
470K
R6073
(AV1 PB :OFF)
UN2215
QR6001
(AV1 PB:ON)
2SD601A
Q6008
22K
R6072
B15
B13
B12
B11
B10
B9
B8
B6
B5
B4
R6018 4700
A
S-VHS SW
SIR505S
D1501
SENSOR
(S-PHOTO)
PNB2301MAV
Q1502
GND (AV)
GND (CYL)
GND (MOTOR)
GND (FG)
GND (SYS)
GND
PS 12V
PS 5V
REG 5V
N.SW 5V
R
R
R
R
R
R
R
R
R
R
(T-PHOTO)
PNB2301MBV
Q1501
R1501 120
R6020 39K
R6021 27K
TL6010
R6019 10K
R6025 43K
100
R6022
39K
R6026
0.01
C6016
AFC S-CURVE
R
A1
A2
A3
A4
27K
R6023
16V10
C6015
A5
TRACKING ENV.
V
116
115
114
113
112
111
110
109
108
107
106
105
104
103
102
101
100
99
98
97
96
95
94
93
92
91
90
89
88
87
86
85
84
83
82
81
80
79
78
77
76
75
74
73
72
71
70
69
68
67
66
65
64
63
62
61
60
59
58
57
56
55
54
53
52
51
50
49
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
A23
43K
R2508
270K
R2507
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
A6
10K
R1506
CASSETTE
S-VHS
K0L1BA000026
S1502
100K
R6045
A22
1K
R6032
0.1
C6019
1
C6020
0.022
C6018
220u
L6003
8200
R6033
0.1
C6026
(A.DUB :ON)
XN1212
QR6002
2
1
3
4
5
A1
A2
A3
A4
A5
A6
A7
A8
A9
A10
A11
A12
A13
A14
A17
A18
A19
A20
A21
RFC MUTE
AV2 PB
LP
PAL EP
60Hz PB
FREQ. ADJ.
CYL HEAD (+)
CYL HEAD (-)
CNR OFF
MAIN IIC DATA
MAIN IIC CLOCK
SAFETY TAB
5P DATA
5P CLOCK
OSD PULSE
PROG
NAVI
NAVI DATA
IR
A
A
V
V
A
V
V
V
V
A
V
R
R V A
T
A
A
V
A
V
V
T
:TO TIMER SECTION
:TO Hi-Fi AUDIO SECTION
:TO LUMINANCE & CHROMINANCE/AUDIO SECTION
:TO POWER SUPPLY/RF SECTION
:TO POWER TRANSFORMER SECTION
12
11
10
9
8
7
6
5
4
3
2
1
G
F
E
D
C
B
A
P
R
V
A
T
H
H
H
L
H
H
H
H
H
L
H
L
H
H
L
H
H
L
H
L
H
H
H
L
L
L
H
L
N
L
H
H
H
H
H
M
L
H
H
L
L
H
H
H
L
M
H
H
L
H
H
L
H
L
L
START
20Hz
H
LOADING H
UNLOADING H
SHORT DN L
PROG H
NAVI H
SLEEP L
P FAIL L
H
MESECAM L
S TAB
L
CNR OFF
H
EX.FF/REW
L
NV-HS870EG/B/EC SYSTEM CONTROL & SERVO SECTION IN MAIN SCHEMATIC DIAGRAM
40
Summary of Contents for NV-HS870B
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