Table of Contents
Advertisement
[SYSCON PCB Y/C/AUDIO/HEAD AMP SCHEMATIC DIAGRAM]
A
B
8
FROM/TO POWER
P.CON+5V
GND
FROM/TO HIFI
NORMAL_A
Y/C_AUDIO
FSC
7
GND
HF2
HF_COM
HF1
FROM/TO CYL/MOTOR
CP4001 TOC-C09X-A1
9
HF1 (R)
8
HF COM
6
7
HF2 (L)
6
SP-CH1 (R)
5
SP COM
4
SP-CH2 (L)
3
EP/LP-CH1 (R)
2
EP/LP COM
1
EP/LP-CH2 (L)
5
L4001
P.CON+5V
22uH 0305
C4089
5.1
ENV_DET
BUFFER
Q4004
2SC2412K
0
4
COMP
15.6KHZ TRAP
C4088
Y/C_AUDIO
L4004 2623003
0.1 B
W925
S102Y
FROM/TO A/C HEAD
P.CON+5V
CP4002
IMSA-9604S-06Z14
6
AUDIO PB
R4001
3
5
AUDIO REC
820
5.2
CTL+
4
CTL+
SW
0
CTL-
V.REC_ST_H
Q4003
3
CTL-
DTA124ES
2
AE HEAD(-)
5.3
1
AE HEAD(+)
0
AUDIO
R4002
PB SW
0.7
Q4001
10K
2SC3331
0
AUDIO
0
PB SW
R4003
Q4002
0.7
2SC3331
2
10K
0
FROM/TO F/E HEAD
CP4003
TMC-T02X-E1
2
FE HEAD(GND)
1
FE HEAD(HOT)
CAUTION: DIGITAL TRANSISTOR
1
A
B
No.51768
C
Y/C/AUDIO/HEAD AMP SCHEMATIC DIAGRAM
TP4001
11
Y/C/A/CCD/H.AMP
NC
IC4001
2.4 2.4 2.4
0 2.4 5.0 2.3 2.3 2.8 2.3 1.5 2.0
LA71067SM-MPB
80
79
78
77
76
75
74
73
0
A-Vcc
H.A GND
1.8
CH4
1.8
Vref
REC EP
1.8
H
2.3V
OUT
L
1.8
ALC
CH3
0
H.AMP
H.A GND
H
SW
5.1
L
H.A VCC
1.8
CH2
0.1 F
P
1.8
AGC
W944
+
AMP
REC SP
1.8
OUT
H
1.8
H.AMP
L
CH1
SW
C4011
0
REC AGC
FILT
50V KA
1
C4009 0.1 F
1.0
ENV DET
AGC
R4021
0
4.6
COMP OUT
R
P
2.7K
DELAY
0
A.GND
MUTE
LINE
R4004
C4002
R4009 3.9K
C4016
ALC-LEVEL
AMP
PB
2.8
FM-EQ
0.01 B
2.7K
AUTO
R4007
R4012
25V
4.7
KA
0.3
BIAS
PB
NC
PHASE-EQ
680
18K
0
Vref
R4008
PB
REC
/EE
5.1
AMP
PB/EE
REC:
10K
R4013
EQ
EP/LP
2.4
AMP
PB:EP
18K
1
2
3
4
5
1
6
7
8
C4010
2.4
2.4
2.4
2.4
0
2.4
2.4
1.5
5.0
6.3V
47
KA
NC
R4011
R4020
22K
10K
BIAS CTL
5.2
Q4005
2SA1318
5.2
0
T4001
1626007
6
1
5
2
R4025
4
3
330K
13
C4020
0.01 B
B4004
0
BL01RN1-A63
0
(W216)
0
BIAS OSC
B4005
Q4006
2SD734
BL01RN1-A63
(W163)
NOTE:
THE DC VOLTAGE AT EACH PART WAS
NOTE: THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME
MEASURED WITH THE DIGITAL TESTER
OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
DURING PLAYBACK
C
TV-20F242
TV-20F242
D
E
L4002
47uH
0305
B4002
BL02RN1-R62
W900
R4074
5.1
2.6
BUFFER
1K 1/4W
Q604
2.0
2SC2412K
12
NC
NC
NC
NC
0
0 1.4 4.0 2.3 2.2 3.0 4.1 3.4 4.9 3.4 5.0 5.0
2.5
5.0 4.2 2.3 0.1
72
71
70
69
68
67
66
65
64
63
62
61
60
59
58
57
56
55
54
53
52
51
CLOCK
0
C-GND
ALWAYS
C-VCC
VDD
4Fsc
KIL
REG
SLD
5V
PULL
VX01
320FH
DET
2.2
VCO
TIMMING
OUT
OUT
0
DRIVER
AUTO-BIAS
KIL
P
R
BEFORE
REC
2.7
BGA
APC
CCD
CLAMP
KIL
P
IN
AFTER
PB
REC
2.5
BGA
APC
AFC
PB
KIL
R
3.0
AMP
B.D.
P
C.SYNC
VCA
R
P
3.2
C-LPF
3.58M
CLAMP
R
ACC
BPF1
BGA DET
2.8
GCA
VCP
N.L.
R
2.8
YNR/COMB
DEEN
4.21M
Main
B-UP
ACC
P
BPF
CONV
AMP
4.9
AMP
SYNC
R
Y-LPF
NC1
DET
BALANCER
PB-Y
2.8
P
R
Sub
3.58M
Y/C
CONV
BPF2
V/I
MIX
3.5
SUB
PB-C
AFC
CONV
P
R
LPF
FM
2.5
1
2
3
NOMAL
R
P
FM
REC
FM
DETAIL
MOD
1.5
AGC
FM-EQ
DEM
ENH
R
1/2
P
TC2
SYNC
S-EQ
1.0
R-EQ
WC
SEP
V-AGC
FM-EQ
NL
DOUBLE
R
TEST
DC
FBC
EMPHA
LIM
VIDEO OUT
3.0
6DB
CLAMP
Chara
4.4
INS.
SQPB
R
0.4
P
TEST
NC
VHS
0
CTL
4.6
AMP
Y-Vcc
Y-GND
9
0
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
5.0
0
0
0.8
0.8
0.8
0
0
4.9
0
1.6
5.0
1.0
0.2
2.0
3.4
2.8
0
2.1
1.0
4.8
NC
L4007
C4047
22P CH
100uH
R4049
1.5K
W821
AUDIO SIGNAL(REC)
AUDIO SIGNAL(PB)
TUNER VIDEO SIGNAL
D
E
2-15
2-16
F
G
(SYSCON PCB)
FROM/TO I/O
FRONT_VIDEO_IN
W896
REAR_VIDEO_IN
GND
S810Y
FSC
VIDEO_OUT
C732_1
270 CH
FROM/TO CHROMA/IF
MONITOR_V
TU1_VIDEO
2.6
2.2
BUFFER
Q4009
2SA1037K
0
R4060
C4058
220K
R4062
FROM/TO MICON
6.3V
22
KA
C4059
220K
SP/LP/EP-H
25V
4.7
KA
TRICK_PB-H/EE-H
V.REC_ST_H
C4061
50V KA
1
C4007
C_ROTARY
R4063
3.3M
50V KA
1
VCR_A_MUTE
R4058
REC/EE/PB
1M 1/4W
D4003 MTZJ13B
DUMMY_V.SYNC
C4052 0.01 B
C4075
16V
10
KA
FRONT_VIDEO_IN
CTL-
R4057 2.2K
C4062
50V KA
1
CTL+
DOC_XO_CTL
C4053
0.01 B
REAR_VIDEO_IN
INPUT_SEL
C4057
16V
33
KA
C4071
H.AMP_SW1
50V KA
1
D4004
R4055 10K
COMP
MTZJ13B
ENV_DET
R4078 100
H.SW
S810X
R4052
SD_VIDEO
68 1/4W
L4009
P.CON+5V
V.SYNC
100uH
C4069
0305
0.001 B
DUMMY_V.SYNC
14
SD_VIDEO
2.3
2.2
S816Y
0
BUFFER
S816X
Q4007
W902
2SA1037AK
S808Y
EP SW
Q4008
S808X
2SC2412K
4.2
4.7
S819X
5.0
R4085
V.SYNC
39K
2.6
R4053
W923
2.3
1.5K
2.8
BUFFER
Q4010
2SC2412K
S102X
LUMINANCE SIGNAL
COLOR SIGNAL
PLAYBACK LUMINANCE SIGNAL
PLAYBACK COLOR SIGNAL
F
G
No.51768
H
8
7
6
5
4
3
2
PCB010
VMX188
1
H
Hide quick links:
Advertisement
Table of Contents
