Y/C/Audio/Ccd/Head Amp - Memorex MVR4041 Service Manual

CP4001
1 EP/LP-CH2 (L)
2 EP/LP_COM
3 EP/LP-CH1 (R)
4 SP-CH2 (L)
SP_COM
CYL 5
6 SP-CH1 (R)
7 HF2 (L)
8 HF_COM
HF1 (R)
9
HF1
HI-FI/
HF_COM
DEMODULATOR
HF2
CP4003
1 FE HEAD (HOT)
FE HEAD
2 FE HEAD (GND)
CP4002
6 AUDIO PB
5 AUDIO REC
HEAD
4 CTL+
AUDIO
CONTROL
3 CTL-
2 AE HEAD(-)
1 AE HEAD(+)
E-1
Y/C/AUDIO/CCD/HEAD AMP BLOCK DIAGRAM
X4001
3.579545MHz
Q4012
BUFFER
Y/C/AUDIO/CCD/HEAD AMP IC
IC4001
LA71200M-MPB
50 49 41
VX01 PULL
TIMMING
L
67
H.SW
REC
FM-EQ
H
66
AGC KIL
AMP
C-LPF
H
P
R
65
H.AMP
SW
GCA
72
L
R
P
FM
AGC
73
DELAY
H
PB
H.SW
FM-EQ
74
L
PB
DOUBLE
PHASE-EQ
LIM
9
REC AMP
7
8
AUTO BIAS
EQ
AMP
6
PB.EE
11 5 4 3
COIL, BIAS OSC
T4001
Q4005
5 2 BIAS CTL
6 3
Q4006
BIAS OSC P. CON + 5V
4 1
Q4003
Q4001, Q4002
AUDIO PB SW SW
Q4010
BUFFER
39
37
OUT
CCD CLAMP
DRIVER
NL
FM WC DETAL
MOD EMPHA ENH
DC
V/I
CONV
P
Y-LPF
R
YNR/
B-UP Main 3.58M
COMB
AMP CONV BPF2
P N.L.
ACC
DEEM
AMP
3.58M
BPF1
R
KIL
PB
B.D.
AMP
Y/C MIX
FM
SUB
DEM LPF
LINE
AMP
V-AGC
LPF
P R
P R
ALC
ALC
DET
MUTE
SYNC
SEP
10 80 78 76 32 30
2
55
SERIAL
54
DECODER
53
CLAMP 22
P
21
R
VCA 36
34
CLAMP
NC1
H.AMP SW/
58
AUDIO MUTE
1/2
C ROT
57
RF SW IN
P
FBC
R
ENV DET 59
Chara
CONP
INS. 60
OUT
24
6dB
26
Y/C_CS
SYSCON/
Y/C_DATA DECK
Y/C_CLK
H. AMP_SW
C. ROTARY
H. SW
AUDIO_MUTE-H
SYSCON/
DECK
ENV. DET
COMP
DUMMY_V. SYNC
OSD_V
FRONT_V_IN
TUNER
TUNER_V
TO_NORMAL_A
HI-FI/
DEMODULATOR
FROM_NORMAL_A
V.REC_ST-H
SYSCON/
CTL+
DECK
CTL-
E-2