– 91 –
– 92 –
– 93 –
– 94 –
Schematic diagram
MA10(2/3)
board
,
,
,
,
,
Schematic diagram
<
<
<
<
<
MA10(1/3)
board
MA10(2/3) BOARD
WAVEFORMS
22
23
A
B
C
D
E
F
G
H
I
J
K
L
M
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
3
1
1
4
5
2
7
6
6
7
7
9
9
9
10
11
9
13
12
12
12
0.4Vp-p (H)
0.4Vp-p (H)
0.32Vp-p (H)
0.32Vp-p (H)
0.5Vp-p (H)
1.2Vp-p(H)
1.2Vp-p (H)
1.8Vp-p (V)
3.8Vp-p (H)
2.4Vp-p (H)
2.4Vp-p (H)
2.4Vp-p (H)
2.0Vp-p (H)
0.58Vp-p (3.58MHz)
0.54Vp-p (4.43MHz)
PB:0.3Vp-p(H)
PB:0.3Vp-p (H)
REC
PB
PB
REC
REC
REC
REC/PB
REC/PB
REC
PB
PAL
NTSC
PAL/SECAM
REC/PB
REC/PB
REC/PB
SECAM
REC/PB
REC/PB
0.24p-p (H)
0.25Vp-p (H)
0.5Vp-p (H)
PAL
SECAM
NTSC
NTSC
REC:0.4Vp-p(H)
REC:0.4Vp-p(H)
8
13
14
REC/PB
NTSC
16
14
15
15
0.4Vp-p (H)
0.4Vp-p (H)
0.4Vp-p (H)
PB:0.3Vp-p (H)
REC/PB
REC/PB
PAL
REC/PB
NTSC
PAL/SECAM
NTSC
REC:0.46Vp-p(H)
16
16
NTSC
SECAM
PAL/SECAM
NTSC
REC
PB
PAL/SECAM
REC
NTSC
PAL
SECAM
NTSC
PB:0.2Vp-p (H)
REC:0.5Vp-p(H)
PB:0.2Vp-p (H)
REC:0.5Vp-p(H)
PB:0.4Vp-p (H)
REC:0.2Vp-p(H)
PAL/SECAM
0.4Vp-p(H)
PB:0.3Vp-p (H)
REC:0.14Vp-p(H)
PB:0.2Vp-p (H)
REC:0.5Vp-p(H)
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
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
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
1
2
3
1
2
3
4
5
6
7
8
9
10
11
12
13
14
1
2
3
4
5
6
7
8
1
3
4
6
2
5
1
2
3
4
5
6
C844
C843
C
8
4
2
L811
C840
C841
C839
C
8
3
7
C
8
3
4
C833
C
8
3
1
C830
C
8
2
9
C855
Q822
C859
C851
C847
C850
C857
C852
C853
L812
C848
C862
C861
C865
C867
C866
C864
C863
L813
C846
C1022
C
1
0
2
1
C
1
0
2
0
C
1
0
1
9
L1004
C
1
0
1
7
C1015
C
1
0
1
6
C1014
R1014
C1012
R1008
R1011
R1012
C1006
C820
C814
C824
R841
C816
C817
R843
C818
C819
C815
C821
C825
C826
R844
R834
R837
R842
R838
R839
R833
Q816
Q818
Q820
Q817
L801
R801
R803
R806
R811
R802
R810
R813
R814
L803
L804
R820
R819
R823
R824
R827
Q806
Q813
Q814
R828
R830
L808
L802
R804
R808
R807
R805
R809
R812
L805
Q804
R816
R818
R817
L806
R821
R822
R826
R825
R829
Q810
L807
R1009
L1003
C1002
C1003
C1004
C1005
L1002
L1001
R832
R831
CN1001
Q826
R876
C869
R875
Q829
R879
Q828
R878
C872
L814
R880
C871
C870
C1001
R881
R882
C828
R884
C827
C868
R886
R815
C879
C845
R840
C1013
R850
R849
C836
C
8
3
5
R
8
4
7
R
8
4
6
R845
R853
R851
R857
R858
R861
X801
R859
R862
R863
X802
R855
R856
R852
R854
R860
R870
R869
R867
R873
R871
R1027
R
1
0
2
5
R1020
R1017
R1016
R
1
0
1
9
R
1
0
1
8
R
1
0
2
4
R
1
0
2
3
R1013
C1011
C1007
C1008
C1009
R1010
C1010
R1015
R835
C822
L810
L809
R1026
R872
C801
C804
C808
C807
C809
C813
C803
C802
C806
C805
Q802
Q805
C810
C811
C812
Q807
Q811
T1001
R836
R1003
R1002
R1001
R1007
R1004
R1005
C858
C856
C849
C854
C
8
3
2
C823
R1006
R864
R866
R868
R865
CN1002
R848
R883
R885
C873
C874
C860
L815
R874
Q801
Q803
Q809
Q812
Q808
Q815
Q830
Q
8
2
1
Q824
IC801
Q825
Q823
IC1001
Q1001
Q1002
IC802
10
10
#
0.1
F:CHIP
47
10V
#
1.5k
:CHIP
0.0015
B:CHIP
6.8k
:CHIP
820
:CHIP
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
220
1/4W
150p
CH:CHIP
220
:CHIP
#
4.43MHz
1.5k
:CHIP
1k
:CHIP
#
#
0.0015
B:CHIP
22
25V
#
#
#
#
#
#
#
#
#
#
#
1
0
:CHIP
#
#
0
:CHIP
#
100
10V
0
.0
1
F
:C
H
IP
100
10V
#
4
7
1
0
V
0
.1
2
5
V
F
:C
H
IP
#
#
1
1
6
V
F
:C
H
IP
0.047
25V
B:CHIP
#
0.1
25V
F:CHIP
0.047
25V
B:CHIP
0.01
F:CHIP
0.022
B:CHIP
47
6.3V
0.1
25V
F:CHIP
0.01
F:CHIP
0.01
F:CHIP
0.01
F:CHIP
0.1
25V
B:CHIP
0.01
B:CHIP
0.1
25V
B:CHIP
0.1
25V
F:CHIP
0.01
B:CHIP
1
0
1
4
7
1
0
V
4
.7
1
4
7
1
6
V
0.01
F:CHIP
270
:CHIP
820
:CHIP
0.01
B:CHIP
0.047
25V
B:CHIP
#
0.01
F:CHIP
6.8k
:CHIP
0.022
B:CHIP
0.01
F:CHIP
0.01
F:CHIP
390p
CH:CHIP
33p
CH:CHIP
#
180p
CH:CHIP
#
:CHIP
#
0
:CHIP
10k
:CHIP
#
4.7k
:CHIP
1.8k
:CHIP
0
:CHIP
#
#
#
#
470
:CHIP
2.2k
:CHIP
470
:CHIP
#
470
:CHIP
820
:CHIP
470
:CHIP
:EL0405
:EL0405
22k
:CHIP
22k
:CHIP
1k
:CHIP
1k
:CHIP
100
:CHIP
#
#
#
#
#
:CHIP
#
:CHIP
4.7k
:CHIP
#
:CHIP
0.01
F:CHIP
0.01
B:CHIP
47
10V
47
10V
#
0
:CHIP
3P
#
#
#
:CHIP
0
:CHIP
#
#
#
#
:CHIP
#
:CHIP
#
:EL0405
#
:CHIP
#
:CHIP
#
:CHIP
0.047
100V
:PT
47k
:CHIP
39k
:CHIP
0.01
F:CHIP
#
:CHIP
#
CH:CHIP
22p
CH:CHIP
#
:CHIP
1
16V
F:CHIP
1
F:CHIP
4.7k
:CHIP
0
:CHIP
#
0
.1
2
5
V
F
:C
H
IP
0
:C
H
IP
2.2k
:CHIP
#
#
1k
:CHIP
1k
:CHIP
47k
:CHIP
#
:CHIP
#
:CHIP
680
:CHIP
3.58MHz
1.8k
:CHIP
8.2k
:CHIP
#
3.3k
:CHIP
2.2k
:CHIP
1k
:CHIP
2.2k
:CHIP
2
.2
M
:C
H
IP
100
:CHIP
5.6k
12k
:CHIP
1
0
k
:C
H
IP
3
.3
k
:C
H
IP
6
8
k
:C
H
IP
5
.6
k
:C
H
IP
18k
:CHIP
47
10V
4.7
10
330k
:CHIP
0.01
:PT
10k
:CHIP
470
:CHIP
#
0.15
16V
B:CHIP
39p
CH:CHIP
0.01
F:CHIP
10p
CH:CHIP
#
F:CHIP
100p
CH:CHIP
0.01
F:CHIP
#
:CHIP
#
1
1/4W
180
1/4W
JW(5)
18k
:CHIP
3.9k
:CHIP
47
1/4W
1
1
1
1
1
12k
:CHIP
6P
4.7k
:CHIP
1k
:CHIP
1k
:CHIP
#
:CHIP
1
16V
F:CHIP
#
:CHIP
2SD601A
V FM BUFFER
2SD601A
V FM AMP
UN2213
JOG SW
2SD601A
BUFFER
2SD601A
V FM AMP
2SD601A
Y/C MIX
2SB709A
BUFFER
2
S
D
6
0
1
A
B
U
F
F
E
R
2SB709A
Y BUFFER
LC89978M-TE-L
1H DELAY
2SD601A
C BUFF
2SD601A
CLK BUFF
BA7755AF-E2
AUDIO HEAD SW
2SD879-AA
OSC
2SD601A
BIAS SW
LA71504M-MPB
Y/C PROCESS
SVHS
CLOCK
QVD
PB RF
GND
5V
REC RF
JOG
TU AL
TU V
VCR L
VCR V
CTL(X)
CTL(Y)
PB SRF
RF ENV
RF SWP
COMP SYNC
C ROT
DATA
CLOCK
PB AL
GND(A)
SW 5V
GND(A)
PB V
A MUTE
SECAM/SVHSD
S VHS
~~~~~
~~~~
DATA
RF SWP
RF ENV
SDA
SCL
NT JUDGE
COMP SYNC
(NTSC)
(NTSC)
(N
T
J
O
G
)
(J
O
G
)
7
8
TO SERVO BLOCK
TO RP BLOCK
TO ACE HEAD
(S)
FE HEAD
NC
GND(AV)
A HEAD PB
A HEAD REC
GND(AV)
CTL(Y)
CTL(X)
AERASE HEAD
S
E
C
A
M
D
E
T
S
E
R
IA
L
D
E
T
K
IL
B
P
F
A
M
P
C
N
C
N
A
P
V
X
0
1
V
X
0
2
L
P
F
V
C
O
IN
V
Y
N
R
C
L
A
M
P
C
L
A
M
P
C
L
A
M
P
C
L
A
M
P
C
L
A
M
P
V
ID
E
O
A
M
P
S
E
P
S
Y
N
C
R
E
C
A
P
C
D
E
T
IN
S
L
P
F
1
/2
V
ID
E
O
M
U
T
E
R
E
C
A
M
P
A
M
P
A
U
T
O
B
IA
S
A
M
P
L
IN
E
A
L
C
D
E
T
A
L
C
V
R
E
F
K
IL
C
-L
P
F
P
B
-E
Q
S
-E
Q
R
E
C
E
Q
D
E
M
O
O
S
U
B
L
P
F
A
G
C
D
E
T
D
O
U
B
L
E
L
IM
IT
F
M
A
G
C
M
O
O
D
E
T
A
IL
N
.L
.
E
M
P
H
M
A
IN
E
M
P
H
Y
C
M
IX
P
IC
C
T
L
D
H
P
N
C
N
.L
.
D
E
-E
N
F
B
C
K
IL
B
.D
D
L
E
Q
M
A
IN
C
O
N
V
S
U
B
B
P
F
S
U
B
C
O
N
V
P
B
B
G
A
-B
A
F
C
D
E
T
A
P
C
D
E
T
P
B
A
C
C
A
M
P
A
C
C
D
E
T
R
E
C
B
G
A
P
B
E
Q
B
P
F
1
B
P
F
2
Q
V
/Q
H
A
-H
.SW
6
0
/5
0
N
T
+
2
FS
C
C
-VC
C
P
R
H
P
R
P
R
P
R
C
O
M
B
T
H
C
-G
N
D
A
C
K
O
U
T
C
-R
O
T
IN
R
F
S
W
IN
M
U
T
E
C
T
L
A
-V
C
C
R
E
C
A-GND
R
E
C
R
E
C
P
B
P
B
R
E
C
-E
P
,L
P
P
B
-E
P
P
B
-L
P,
SP
B
A
L
T
C
1
P
P
R
P
R
S
N
S
N
R
P
H
IG
H
O
U
T
T
R
IC
K
P
E
A
K
IN
G
E
M
P
H
M
A
IN
P
R
Y
-G
N
D
R
E
G
1
2
3
Y
-V
C
C
P
R
R
,A
B
P
R
R
P
P
R
P
S
L
D
D
E
C
O
D
E
R
B
G
A
-A
A
G
C
E
N
H
C-IN1
VDD
C-IN2
NC
Y-IN
CONT2
Y-OUT
VSS
C-OUT
CONT1
4FSC
CLK
VCO
RD
X
X
FULL ERASE HEAD
AUDIO(REC)
AUDIO(PB)
/3)
VIDEO RF(PB)
VIDEO RF(REC)
V
ID
E
O
R
F
(P
B
)
1.5
2.1
(2.4)
(3.1)
2.4
1.0
0
2.5
3.1
3.1
1.7
2.3
1.5
2.1
VIDEO RF(PB)
VIDEO RF(REC)
(3.9)
2.2
2.2
(2.2)
2.2
2.3
2.2
2.2
(2.7)
2.3
1.8
(2.5)
(0)
2.5
(3.1)
2.1
3.1
0
1.6
(0)
(2.4)
2.1
3
.1
(1
.1
)
V
ID
E
O
(R
E
C
/P
B
)
(2
.5
)
(2
.2
)
4.1
0
.2
0
.2
3
.0
0
.6
1
.8
3
.0
(0)
NO MARK:REC/PB
<< >>: PB
( ):REC
VOLTAGE
# MARK-PARTS NOT USED FOR THIS MODEL.
0
1.9
0.4
1.7
1.8
(0.2)
2.6
3.7
0
0
3.0
0
(2.5)
2.2
2.2
2.0
3.6
1.8
0
0
(0)
0.4
4.1(SECAM)
2
.3
0
.8
1
.3
(S
E
C
A
M
)
0.2
(1
.0
)
2.2
2.2
2.2
0
2.2
2.6
2.6
2.2
2.2
0
1.4
2.0
9.0
2.1
0.9
0.4
1.8
1.2
15
14
13
12
16
1.5
2.1
(4.4)
(1.0)
(1.1)
AUDIO(REC)
AUDIO(PB)
VIDEO(PB)
AUDIO(REC)
AUDIO(PB)
0.8
1.5
V
ID
E
O
(P
B
)
V
ID
E
O
(R
E
C
)
V
ID
E
O
(R
E
C
/P
B
)
8
9
7
6
5
1
2
3
4
11
10
AUDIO(PB)
AUDIO( REC)
AUDIO RF C(REC)
AUDIO RF Y(REC)
SW5V
SW5V
SW5V
SW5V
SW5V
SW5V
SW5V
SW5V
SW5V
SW5V
SW5V
SW5V
SW5V
SW5V
SW5V
SW5V
SW5V
SW5V
SW5V
SW5V
SW5V
SW5V
SW5V
B-SSS10370-HK.-MA10-P2
(Y/C PROCESS)
TO MA10
TO MA10(1/3)