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CP4001
SP-CH1 (R)
6
5
SP_COM
4
SP-CH2 (L)
CYL
3 EP/LP-CH1 (R)
2 EP/LP_COM
1 EP/LP-CH2 (L)
Q4004
BUFFER
COMP
SCL
SDA
MICON/
V. REC_ST_H
POWER
CTL-
CTL+
H. SW
Q4003
SW
Q4001, Q4002
AUDIO PB SW
CP4005
AUDIO PB
6
AUDIO REC
5
HEAD
4
CTL+
AUDIO
CONTROL
CTL-
3
COIL, BIAS OSC
L4003
2
AE HEAD(-)
AE HEAD(+)
1
CP4004
2
FE HEAD (GND)
FE HEAD
1
FE HEAD (HOT)
Y/C/AUDIO/HEAD AMP/IN/OUT BLOCK DIAGRAM
Y/C/AUDIO/HEAD AMP ic
IC4001
LA71170M-MPB
82
ENV
DET
84
85
COMP
94
OUT
88
PB_FM
AGC
90
REC FM
AGC2
91
23
DECODER
SERIAL
24
CTL
30
PB EQ
100
P
R
1
PB/EE
2
LINE
AMP
AMP
3
EQ
AUTO
REC
4
MUTE
BIAS
AMP
11
6
96
99
5
7
98
Q4005
2
5
DRIVER
4
3
Q4006
BIAS OSC
64
63 61
71
72
R
P
KIL
VXO
DET
R
KIL
APC
APC
PB
REC
P
COMB
BEFORE
AMP
PB BGA
BEFORE
AFTER
320FH
P
R
P
VXO
PB BGA
VCO
AFTER
XO
REC
Sub
R
CONV
BGA
C-LPF
Main
P
B_UP
CONV
AMP
ACC
R
BPF2
REC
FM
FM
FM-AGC
DEM
DEM
S-EQ
S
W/D
DOUBLE
NL
DETAIL
CLIP
LIM
EMPHA
ENH
PB_FM
TH
N
EQ
ALC
ALC
DAT
P
R
97 76
17
18
19
78 80
Q4007
AMP
15.6KHz TRAP
L4001
6
IN OUT
4
Q4010
BUFFER
59
57
54
52
51
C COMB
CLK
49
-IN
Y_DELAY
46
45
Q4012
BUFFER
P
CLAMP
R
43
NL DE
Y.N.R
EMP
41
R
P
N.C.1
R
P
PIC_CTL
38
ANR
36
34
Y/C
P
R
1/2
MIX
FBC
32
SYNC
EE
SEP
31
AGC
Q4011
6DB
29
CLAMP
Y-VCC
16
21
20
Q4212
Q4009
Q4013
SW
BUFFER
5
3
2
J4201
IN OUT
1
GND
GND
TU_VIDEO
TU_AUDIO
Y/C_AUDIO
TV
BUFFER
Y/C_VIDEO
SD_VIDEO
Q4210
BUFFER
MUTE SW
EXT_MUTE
MICON/
POWER
V. REC_ST_H
FRONT_VIDEO
FRONT_AUDIO
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