8-2. Cricuit Diagram
1
A
2
3
4
5
B
C
D
E
F
G
GND
AE HEAD
AUDIO REC
AUDIO PB
GND
CTL I / O
C.BIAS
7
6
5
4
3
2
1
6
5
4
3
2
1
GND
FE HEAD
2
1
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
5
1
14
13
12
11
10
9
8
7
6
5
4
3
2
1
A2
A1
Mute
M.H
L
9dB
AMP
PB
MUTE
P
P
R
Trap
fH
DET
FM–AGC
DET
DOC
JUDGE
S / N
LPF
PB–C
EP ON
GND3
SP ON
Rec ON
EP ON
BIAS
Mute
GENERATOR
PULSE
ID
AFC
ID
APC
R
P
DET
AFC
1 / N
VCO
R
P
PLL
HD
VCC3
R
P
LPF
SUB
DeMOD
FM
D.LIM
EQ
PB–FM
R
P
AGC
FM
TRAP
C
AMP
PB
EQ
Rec FM
FM–MOD
P
R
CLAMP
Reg BIAS
VIDEO
DET
B–ID
LOGIC
B–ID
1 / 8
ACK
P
ACK
SW
CONV
SUB
PS
DET
APC
R
P
ACK
R
BPF
Corrier
CONV
MAIN
LPF
Rec C
VCC1
EMPH
MAIN
D / C
W / C
R
P
R
P
LPF
MAIN
CLAMP
FB
DET
AGC
AGC
GND2
MUTE
PV / P
AMP
P
R
AMP
PB
REC
MUTE
INV
AMP
REC
ALC
BIAS
AUDIO
BLANK
D GND
HD
A.Vcc
VIDEO IN
Csync IN
SWITCH
2SC2712Y
Q774
CHROMINANCE
TA1251CF
IC201
SIGNAL PROCESSOR
MAIN LUMINANCE /
9
(8.9)
SWITCH
2SC2458Y
Q772
0.2
(8.7)
[8.7]
AMP
2SC1959Y
Q771
50
49
48
57
47
39
[5]
5
(5)
[4.3]
(4.3)
4.8
[0]
(0)
–17.4
[0.7]
(0.7)
–23.5
–23.7
(0.7)
[0.7]
(4.9)
–23.6
[4.9]
0
0
0
3.8
3.8
0
4.6
0
0
[8.7]
0
[0](0)0.9
(9)
0.1
[9]
8.3
(9)
[9]
1.8
(0)
[0]
0
1.67
(1.67)
[1.67]
[3.25]
(3.27)
3.27
[2.33]
(2.33)
2.33
MODE
SERVO
B
C
E
REC
PLAY
EE
Q254
LOCATION
PIN
SERVO
EE
LOCATION
PIN
SWITCH
SWITCH
SWITCH
KETSU
R264
0R
R262
(12.5)
JP705
(12.5)
JP202
(20)
JP212
(12.5)
JP711
(5)
JP715
(12.5)
JP203
(10)
JP201
(7.5)
JP246
(15)
JP252
(5)
JP717
(7.5)
JP274
(12.5)
JP307
JP248
KETSU
C720
KETSU
R720
KETSU
R721
0R
R251
RN1404
Q254
0R
R263
KETSU
R262
22µ
L209
KETSU
C778
301
KETSU
R216
27p
C210
1.5k
R211
1k
R210
1k
R213
100
R212
10k
R296
4.7k
R297
KETSU
CL10
k
F0.01µ
C204
1µ50V
C715
K
ETSU
KETSU
C279
F0.01µ
CL14
3.9K
RL21
2µ
C
4.7k
RL12
Y
F0.01µ
CL12
CL13
CL11
ICL01
D844
22µ16V
C843
22µ16V
C844
620
R844
MTZJ5.6C
D843
2SC2236Y
Q843
KETSU
R266
15p
C276
F0.01µ
C278
3
KETSU
C261
27K
10K
R719
4.7µ35V
C711
B560p
C701
100R
R248
2K2
R241
KETSU
Q219
KETSU
R238
30p
C244
47µ
L206
680R
R228
KETSU
C246
68µ
L207
1k
R702
KETSU
C703
B0.1µ
C415
1k
R237
240p
C265
0R
R230
56p
C249
68µ
L208
9p
C242
240
R712
12k
R710
15k
R401
B5600p
C706
22µ16V
C709
B0.033µ
C716
680
R706
330
R705
8.2m
L701
B0.01µ
C713
330k
R711
10µ16V
C714
KETSU
C708
F0.1µ
C707
6.8k
R713
560p
C710
33k
R708
10µ16V
C702
B3300p
C712
2.7k
R707
B0.1µ
C268
220p
C264
F0.01
C263
680p
C243
510
R229
510
R227
1.5k
R226
1µ50V
C248
B0.1µ
C247
200p
C245
1K2
R225
5K1
R224
KETSU
C239
10µ16V
C240
B0.1µ
C241
KETSU
L401
47µ6.3V
C406
F0.1µ
C405
0.47µ50V
C403
B3300p
C404
27k
R403
27k
R402
10µ
C402
27k
R717
33k
R716
1M
R704
1000p
C401
22µ16V
C704
1µ50V
C717
CON FFC 7P
W701A
1.2k
R775
1k
R774
2.2
R772
33µ16V
C775
JP322
KETSU
R779
1.5k
R778
100
R770
B0.01µ
C777
5.6k
R709
24k
R703
B220p500V
C776
2SC2712Y
Q775
2.2k
R777
2.2k
R776
RN2403
Q773
P702
330µ
L772
36k
R771
TF0.047µ100V
C771
B0.01µ
C773
6.8k
R773
B0.01µ
C774
47µ16V
C772
L771
W701
HD IN
Rec H
TC90A25F–410
ON / OFF 5V
ON / OFF5V
ON–OFF 5V
C.BIAS
CTL I / O
ON / OFF5V
PB–C in
PB–FM in
Rec FM out
5V
CR
input select
A MUTE
Trick / PB / Rec
125–8129–41
PV / PH
JUMPER
BUFFER
2SC2712Y
Q211
16
15
14
3
2
1