12
11
SCHEMATIC DIAGRAM-6
1
30
31
50
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
80
51
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
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
100
81
99
98
97
96
95
94
93
92
91
90
89
88
87
86
85
84
83
82
ALC
Vref
2.3V
ENV
DET
MUTE
Vref
LINE
AMP
ALC
DET
Vref
2.3V
EQ
AMP
EQ
AMP
COMP
OUT
REC
FM
AGC2
PB FM
AGC
REC FM
AGC1
REC
FM EQ
DOUBLE
LIM
SERIAL
DECODER
NL
EMPHA
CLAMP
CLAMP
H-PLL
FBC
CLAMP
1/2
DETAIL
ENH
FM
DEM
SUB
LPF
Chara
INS
60dB
AMP
SYNC
SEP
Y/C
MIX
N.C1
N.C2
PIC-CTL
ANR
SYNC
DET
EE
AGC
PB FM
EQ
AUDIO
SIGNAL
PROCESSING
HEAD AMP
RF
PROCESSING
FM
PROCESSING
W/D
CLIP
FM
MOD
Y.N.R
BPF1
Y.LPF
AFC
1.1M BPF
V/I
CON
MAIN
CONV
SUB
CONV
BALANCE
BPF2
C-LPF
ACC
AGC
DET
B-UP
AMP
REC
BGA
BPF
D.E.
D.E.
D.E.
SLD
C COMB
CCD
LC89981/82
DELAY
PROCESSING
Y DELAY
VXO2
VXO1
NAP
KIL
KIL
B.D.
KIL
DET
PILOT
BG
320FH
VXO
COMB
AMP
PHASE
ALT
SECAM DET
PAL M DET
REC
APC
REC
APC
REC
APC
DET
REC
AFC
ID DET
CCD
LPF
PB BGA
AFTER
PB BGA
BEFORE
NL
DEEMP
A.GND
PB/EE
PB EQ
THROUGH
S-VHS:OPEN
320/321FH
VCO
VXO
XO
PB/EE
REC:EP/LP
PB:EP
REC
FM AGC2
DET
H.A
GND
H.A
GND
H.A
GND
A-VCC
C-GND
SP
LP/EP
A-MUTE/
C+ROT
RFSW/
HASW IN
REC
S-FM IN
FM AGC
DET
ACC DET
BAL/TCI
Y
-VCC
Y
-GND
R
R
P
P
P
P
P
R
AFC
DET
DET
SYNC
REG
ALWAYS
5V
DELAYED
SIGNAL
VCA
DET
R
R
R
R
R
R
R
R
R
R
R
R
B.B
R
R
P
R
R
NTSC-M
P
P
P
P
P
PB-Y
PB-C
P
P
P
PB
CTL
EQ
TC1
AGC
TC2
P
P
COMP
IN
Y/C SEP
IN
P
P
R
BEFORE
NON CORR
MES
CORRE
AFTER
C-MAIN
C-DELAY
Cn-CTL
Cn-CTL
C-VCC
NTSC:H
CCD
VCC
CCD
GND
To
SEC
DET
P
1
12
2
3
4
5
6
7
8
9
10
11
24
13
23
22
21
20
19
18
17
16
15
14
PHASE
ADJ
MAIN
ID-DET
IDENT
IIC BUS
SYSTEM
SW
4.3M
BPF
ACC1
ACC
BPF
ACC
DET
BELL
ADJ
1.1M
PRE-BPF
Anti Bell
ADJ
SYSTEM
SW
1/4
C/D
X 2
X 2
1.1/4.3
Anti Ball
L/M
1/4
ATT
SYNC
GATE
SYNC
COMORESS
ACC2
LIMITER
2.2M BPF
V C/D
V SEP
SLICER
V C/D
VCO
AFC
LP
XVCO
QUAD DET
TRICK
ID-DET
EP
ADJ
4.3/1.1
BELL
DAC
TRICK
SW8
REC
REC
REC
REC
REC
PB
PB
PB
PB
PB
PAL/NTSC
SECAM
SW5
SW4
SW2
SW3
SW6
SW7
1
2
3
4
5
6
7
8
9
10
Hi-Fi A PB
Hi-Fi REC
Hi-Fi B PB
SP A PB
SP REC
SP B PB
LP A PB
LP REC
LP B PB
2
1
F/E
GND
3G
2G
1G
4G
5G
6G
6G
1G
13F
14F
15F
16F
16F
3F
11F
12F
8F
9F
10F
6F
7F
3F
4F
5F
1F
2F
1
2
3
6
5
4
2D
3D
3D
1D
1D
5VT
5V
GND
REC "H"
H.AMP SW
C.ROTARY
79
29
28
62
24
91
90
27
6
54
30
12
A.MUTE "H"
V.H/SW
IIC DATA
IIC CLOCK
DV.SYNC
VIDEO(VPS)
VIDEO(Y/C)
SEC DET "H"
C.SYNC
COMP OUT
V.ENV
To
SYSCON/
SERVO
SECTION
To
CYL.HEADS
To
Hi-Fi
SECTION
2F
1F
To
SYSCON/
SERVO
SECTION
P3D01
HF B PB
HF REC
HF A PB
MONO A.OUT
AUDIO IN1
VIDEO IN1
CTL(-)
CTL(+)
6
5
4
3
2
1
AUDIO PB
AUDIO REC
A/E (+)
A/E (-)
CTL (-)
CTL (+)
P3D02
P3D03
To
POWER
SECTION
,
A MAIN(AUDIO/VIDEO SECTION)C.B
C367
0.022
R337
18K
C3A1
0.022
R3A1
2.2K
C320
1
C373
0.1
C346
220
IC301
LA71591M
IC201
TA1238N
L307
100u
R350
470
C350
0.1
C348
1
C466
3.3
C302
0.1
R3A2
47K
R3B1
4.7K
R431
4.7K
R3A3
1K
C375
0.1
L402
6800u
R406
2.7K
C410
0.1
C412
0.1
C413
0.01
R412
1.8K
R413
8.2K
R415
330K
R414
12K
C410
0.01
R416
150
C415
22
C423
4.7
TL401
BIAS COIL
C421
0.022
R422
560
R418
27K
C417
1200P
C416
2200P R417
1K
C368
1000P
C371
0.022
Q301
KTC3199
Q302
KTC3199
C309
330P
C363
39P
C308
R308
2.7K
R306
330
R341
2.7K
R307
330
R310
1K
C304
220
C305
0.1
L301
10u
R312
1.8K
C311
180P
R335
18K
R315
T/W
R314
T/W
C389
0.022
C370
180P
C314
0.1
R317
82K
R325
1K
C323
47
C315
10
C316
10
C317
0.01
C318
2.2
R318
4.7K
C319
0.1
C322
47
C324
0.1
L304
100U
R319
1K
C319
0.1
C326
10
C327
1
C313
100P
Q303
KTA1267
C328
0.047
C329
0.01
C330
0.01
R320
T/W
C210
47
L201
12u
C209
0.022
R213
100
C203
0.47
R209
100
X201
4.286MHz
C214
15P
C215
0.1
C216
0.1
R207
R208
C217 0.1
R206
100
R210
1K
R205
1K
R204
1K
C213
2.2/50
C212
0.033
Q201
KTA1267
C201
2.2
R211
1.5K
C211
0.022
R212
100
C208
10/16
C207
0.047
C206
0.047
C205
0.01
C203
0.47
Q304
KTC3199
Q202
KTC3199
C335
0.1
C354
220
L309
100u
L306
T/W
C374
C334
220
C218
0.1
C220
0.022
C405
10
C406
33
C355
0.01
RF TP
C401
47
C402
0.022
R430
3.9K
R201
470
R222
1K
R322
8.2K
C358
1
C341
0.022
C340
0.033
C339
4.7
R321
1.5K
C338
0.022
R326
2.7K
C337
4.7
C342
0.01
C343
0.047
C344
0.022
R323
5.6K
C403
0.1
R425
47K
L401
10u
X301
4.43MHz
C331
220
C333
D301
1SS131
Q305
KTA1267
R316
150
R311
4.7K
C312
22P
R313
470
L303
33u
C381
0.033
C303
1
C301
0.1
R349
5.6K
C353
22P
C307
27P
R338
T/W
R309
820
C310
4.7
C306
0.01
R490
10K
R491
1.8K
V.H/SW TP
L405
27u
R419
47
C420
47/50
C424
0.1
R420
1K
C418
0.015
C419
0.01
R421
2.2
R410
10K
R411
22K
R409
4.7K
R408
2.2K
R407
22K
R404
1.8K
R403
5.6K
C408
0.015
Q3A1
KTC3199
Q404
KTC3199
Q405
KTC3203
Q403
KTC3199
Q401
KTA1267
Q402
KTA1267
Q3A2
KTC3199
C431
0.01
R333 560
R424 270
30
79
79
REC "H"
REC "H"
12 V.ENV
COMP.OUT
R302 10K
R303 18K
R304 10K
R340 18K
R305 1.2K
L302 56u
L308 T/W
62 A.MUTE
28 C.ROTARY
24 V.H/SW
29 H.AMP SW
90 IIC CLOCK
91 IIC DATA
27 DV.SYNC
54 C.SYNC
79 REC "H"
C336 0.01
C332 0.01
79
REC "H"
R301
R402 2.2M
R324 10K
91 IIC DATA
6 SECAM DET "H"
90 IIC CLOCK
54 C.SYNC
27 DV.SYNC
To
CTL/AUDIO
HEADS
To
FULL
ERASE
HEAD
5VT
5V
5V
5VT
O N E V O L T A G E : P B O R R E C M O D E
T W O V O L T A G E S : P B A N D ( R E C ) M O D E
:REC AUDIO SIGNAL
:PB AUDIO SIGNAL
:PB CHROMA SIGNAL
:PB VIDEO SIGNAL
:PB Y SIGNAL
:REC CHROMA SIGNAL
:REC VIDEO SIGNAL
:REC Y SIGNAL
*
: WAVEFORMS No.
2.4
2.4
2.5
2.4
0.1
(2.4)
2.4
2.4
0
0
1.0
1.7
5.1
(2.7)
1.5
1.9
(1.5)
2.3
5.1
3.0
(0.2)
1.9
(2.5)
1.1
(2.5)
3.0
2.2
(2.5)
0
1.8(2.3)
4.3(3.8)
1.2
(1.7)
1.3
(1.9)
5.1
2.2
(2.5)
4.9
4.9
0
0
2.4
1.7(0.6)
0.1
0.3
0.3
2.9
1.5
(2.3)
1.9(1.3)
2.2
4.1
5.1
3.0
2.8
(3.1)
2.1
0
1.5
(2.3)
1.6
1.6
0
2.6
(2.2)
9.5
2.2
0.9
0
1.9
1.9
1.3
5.0
2.6
0
2.6
5.1
3.4
0.2
(0.5)
5.0
3.3
3.4
3.4
3.5
5.0
5.0
2.1
(1.4)
2.7
3.8
0
0.6
2.0
(2.9)
2.5
3.2
3.4
1.8
(0)
5.0
2.4
0
2.4
2.5
0
0
0
0.7
0.7
0
5.0
1.9(4.8)
0
1.9(0)
1.9(4.8)
0.2
4.2(0)
0(0.3)
0
2.3
0
2.4(1.6)
4.9
(4.1)
2.4(3.3)
2.4
(1.9)
1.8
(3.3)
1.3
(3.4)
1.8
(3.3)
1.6
(4.7)
1.7
(2)
1.1
(4.4)
5
4
15
14
1
9
2
2
2
7
16
12
12
12
13
8
11
3
6
10
