Memorex MVR-4040A, Руководство по обслуживанию

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Y/C/AUDIO/CCD/HEAD AMP BLOCK DIAGRAM
E-1 E-2
X4001
3.579545MHz
40
100
98 97
25
42 96
28
85
83
82
5
7
46
4
6
44
59
55
30
19
14
13
93
2 1
3 78 76
H.AMP
SW
REC AMP
CP4001
6
5
4
SP-CH1 (R)
SP COM
SP-CH2 (L)
CYL
FE HEAD (HOT)
FE HEAD (GND)
2
1
CP4003
FE HEAD
CP4002
6
5
4
AUDIO PB
AUDIO REC
CTL+
HEAD
AUDIO
CONTROL 3
2
1
AE HEAD(-)
AE HEAD(+)
CTL-
CTL+
CTL-
Q4008
BUFFER
SYSCON/
SERVO
Y/C/A/CCD/H.AMP
IC4001
LA71077AM-MPB
TUNER
49
Q4009
BUFFER
VX01
62 61
PULL
51
TIMMING
53
CCD
OUT
DRIVER CLAMP
47
16
17
15
12
11
94
34
31
35
84
H.SW
88
90
91
89
H.SW
H
L
H
L
H
L
PB.EE
P
R
WC
DC DETAL
ENH
NL
EMPHA
REC
FM-EQ FM
MOD
P
R
AGC
AMP
KIL
FM
AGC
DELAY
PB
FM-EQ
PB
PHASE-EQ
P
R
C-LPF
GCA
B-UP
AMP
ACC
AMP
Main
CONV 3.58M
BPF2
AUTO BIAS
P
R
KIL
B.D.
PB
AMP
3.58M
BPF1
DOUBLE
LIM FM
DEM
SUB
LPF
V/I
CONV
P
R
Y-LPF
YNR/
COMB
N.L.
DEEM
NC1
Y/C MIX
SYNC
SEP
VCA
CLAMP
1/2
FBC
Chara
INS.
6dB
P R
P
R
V-AGC
T4001
CLAMP
EQ
AMP
LINE
AMP
MUTE
ALC
SP/LP/EP-H
INPUT_SEL
TRICK_PB-H/EE-H
DOC_XO_CTL
REC/EE/PB
H.AMP_SW
C.ROTARY
H.SW
AUDIO_MUTE-H
V.REC_ST-H
ENV.DET
COMP
DUMMY_V.SYNC
OSD_V
C.SYNC
Q4004
BUFFER
FRONT_V_IN
TUNER_V
TO_NORMAL_A
FROM_NORMAL_A
4FSC
SYSCON/
SERVO
6
2
3
1
5
Q4005
BIAS CTL
99
SYSCON/
SERVO
4
P.CON+5V
3
2
1
EP/LP-CH1 (R)
EP/LP COM
EP/LP-CH2 (L)
T/C R/P
AUDIO R/P
HA SW IN
C ROT
RF SW IN
AUDIO
MUTE
H.A R/P
ENV DET
CONP
OUT
Q4006
BIAS OSC
Q4003
SW
Q4001, Q4002
AUDIO PB SW
HF2 (L)
HF COM
HF1 (R)
7
8
9
HF1
HF2
HIFI
HF_COM
HIFI