8.4.
SYSTEM CONTROL & SERVO SECTION IN MAIN SCHEMATIC DIAGRAM
1
2
3
4
5
6
7
8
A
B
C
D
F
E
1
2
3
4
1
2
3
4
IC1502
RPI354N
S1501
K0G934A00002
MODE SW
G
9
10
:TO POWER SUPPLY/RF SECTION
CAPSTAN SERVO SPEED LOOP
CAPSTAN SERVO PHASE LOOP
CYLINDER SERVO SPEED LOOP
CYLINDER SERVO PHASE LOOP
R
:TO LUMINANCE & CHROMINANCE/AUDIO SECTION
V
I :TO INPUT/OUTPUT SECTION
:TO TIMER SECTION
T
R
R
PS 5V
REG 5V
B27
B26
B25
GND (MOTOR)
GND (FG)
GND (CTL)
GND (FIP)
GND (SYS)
GND
AFC S-CURVE
SAFETY TAB
POWER KEY
S.CLOCK
S.DATA
MESECAM DET
FIP CS
RFC MUTE
VIDEO OUT
FIP
POWER OFF
FSC
R
R
R
R
R
R
R
T
T
T
T
V
T
V
I
R
R
V
A1
A7
A8
A10
A11
A14
A15
A16
A17
A18
Q1501
PNB2301MBV
Q1502
PNB2301MAV
D1501
SIR505S
SENSOR
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
S TAB
POWER KEY
CNR OFF
SECAM ID IN
DAVN
FG AMP OUT
FG AMP IN
GND(A)
AV3 S IN
CYL PFG
O REF
I REF
S CAS
CYL HEAD(-)
CYL HEAD(+)
CYL AMP REF
PB CTL OUT
+5V(A)
+5V(AD)
EX.FF/REW
T-REEL
PULSE
S-REEL
PULSE
CYL ET
CAP ET
CAP R/F
125Hz
IIC DATA
IIC CLOCK
FLD/T2
CLOCK
FLD/T2
DATA IN
FLD/T2
DATA OUT
EEP ROM
CLOCK
FLD CS
OSD PULSE
AD V/
SECAM MIX
SECAM/PAL
GND
CV IN(EDS)
HLF
5V(OSD)
CV OUT
A DEF
KILLER
DET
AFC S
SLP
CPB
N/S/T1/T2
S-PHOTO
T-PHOTO
TRACKING ENV.
AV1 PB
CURR.LIMIT
F ADJ.
ART V/H/N
IR
AV PB
AV PB
EEP WR
VIDEO H SW
AUDIO H SW
PROG.ON
BW
TBC MODE O
ABS NORM
V.EE
D.FM REC
D.A.REC
BIAS
FM MUTE
PAL-I/
BG/DK
1
2
3
4
IC1501
RPI354N
CV IN
GND(OSD)
OSD FSC IN
4FC LPF
GND
LC OSC OUT
LC OSC IN
GND(D)
12MHz OUT
12MHz IN
5V(D)
32KHz OUT
32KHz IN
POS.SW1
POS.SW2
POS.SW3
11
P.FAIL
T
A6
(T-REEL)
(T-PHOTO)
(S-PHOTO)
(S-REEL)
:TO POWER TRANSFORMER SECTION
P
51
30
S-VHS DET
TRACKING ENV.
V
V
KILLER
PAL EP
V
FREQ.ADJ
V
V
ART V/H/N
IR
T
A
D.FM REC
D.A.REC
V
V
BIAS
MUTE
V
R
SW2
S-VHS DET
V
T
RESET
AV1 PB
I
Y/C VIDEO OUT
V
A19
TL6013
TL6012
CYL HEAD (-)
CYL HEAD (+)
V
V
SLEEP
R
T
BACK UP 5V
N.SW 5V
R
A25
A26
A27 A28
A29
A1
A2
R6001
4700
C2512 25V4.7
C2511 6V22
C2508
0.1
TW2002
C2513
3900P
C2514
0.1
TW2015
C2510
33P
R2506
1M
D2501
MA165
D2502
MA165
R1504
27K
R1503
27K
R6031
6800
C6017
680P
B1
B2
B4
B5
B7
B8
B9
B16
B17
B18
B19
B20
B21
B22
B23
R6020
39K
R1501
120
R6021
27K
R2507
270K
R2508
43K
R6026
39K
C6016
0.01
C6015
16V10
R6023
27K
R6019
10K
R6025
43K
R6022
100
TL6010
B1
B2
B4
B5
IC6001
C2CBJG000262
A30
A31
A6
R2502
2200
R2501
0
C2506
0.056
C2507
0.056
R2504
10K
R2503
10K
C6038
100P
C6039
100P
R6047
4700
R6048
4700
R6011 220
R6012 220
TW6002
R6013 220
R6007
47K
A33 A34 A35
A7
A8
A10 A11 A36 A37 A25
A38
A14
A15
R6040
1K
R6041
1K
L6005
0
C6024
6V220
C6022
220P
C6023
1
R6039
1K
R6004
0
C6009
18P
C6010
18P
C6011
18P
R6005
220K
C6012
15P
X6001
H0A120500002
X6002
VSX1022
C6003
470P
R6002
1K
C6005
0.01
C6004
0.01
R6009
22K
C6036
560P
R6077
1M
Q6009
2SD601A
(AMP)
R6003
390
R6078
470
C6035
1
A16 A17 A18 A19
A39
A40
B7
B8
B9
B10
B12
B17 B18 B19
B20 B21
B25 B26 B27 B22
R1505 100
B23
R6075
22K
R6072
22K
R6071
18K
R6076
15K
R6074
470
D6004
1SS355
R6073
470K
Q6008
2SD601A
(AV1 PB:ON)
QR6001
UN2215
(SWITCHING)
C2509
0.47
R2505
3900
R1017
10K
QR6004
UN2211
R1502
180
LECHA
A2
R1506
10K
C6041
0.1
(A/B/C/D)
LB6001
J0JBC0000041
C6042
0.01
C6040
0.1
HEAD SW
V
B10
R6017
1K
TW2001
R6084
3300
QR6002
UN2212
(INV.)
AUDIO DEF
R
B3
B3
R4918
15K
I
PROG
B12
N
H
L
L
H
H
L
L
H
L
H
H
H
H
H
L
H
L
L
L
L
L
H
A MUTE
H
P.FAIL
L
HALF WAVE
H
LP
H
MESECAM
DET
H
LOADING
H
UNLOADING
H
SLEEP
L
H
L
H
H
H
M
H
H
H
L
H
H
H
H
RESET L
12MHz START H
FIP L
POWER OFF L
(SLEEP :OFF)
L
H
H
NV-MV20EG/EB/EBL,MV15EG/EP
SYSTEM CONTROL & SERVO SECTION SCHEMATIC DIAGRAM
42
