Memorex MVP0028 Service Manual page 32

A B
8
7
TO JACK
NORMAL_A_OUT
W801
VIDEO_OUT
GND
6
FROM/TO SYSCON/SERVO
SP-L/LP-M/EP-H
H.SW
DUMMY_V.SYNC
EE/PB
VV-H
5
LP/EP_PB-H
AUDIO_MUTE-H
SYNC
SP_TRICK_PB-H
CTL+
CTL-
GND
4
FROM POWER
GND
P.CON+5V
3
FROM/TO HEAD AUDIO CONTROL
CP4001
52044-0445
CTL (-) 1
CTL (+) 2
AUDIO GND 3
AUDIO (PB) 4
2
1
A B
G-1
C
Y/C/AUDIO SCHEMATIC DIAGRAM
5
6
C4013
50V 1
C4004
0.01 F
LP/EP_PB-H
W830
EE/PB
R4006
820
W807
C4012
6.3V 47
Y/C AUDIO IC
LA71026ML
C4009
50V 4.7 KA
W841 W850
NOTE:
THE DC VOLTAGE AT EACH PART WAS
MEASURED WITH THE DIGITAL TESTER
DURING PLAYBACK
C
D E
(SYSCON PCB)
L4002
10uH 0305
2
C4014
NC
2.1 3.0 1.0 3.1 2.0 4.0 3.0 0.2 4.1 4.9 2.8 2.4
2.7
0.022 B 48 47 46 45 44 43 42 41 40 39 38 37 36
2.7
R4010 C.ROT
DET AGC QV/GH AMP
SLD H.SYNC
1.8K VXD
KA 4.9
A1 PLPF
3RD
320FH DLY
X4001 DET HALFH COMB
VCO
3.9
100CT3R502 KILLER YNR
S.SEP
FBC
PB REC
REC BGPGEM
2.4
1/2
APC AEC
AEC
R
DET DET
BGP1 BGP2
DET
R P
2.0 CLAMP
P
COMP
R
KIL LFP
KIL-DET PBAMP +
C4017 P
2.0 +
KIL
B,DEEM
ID-DET +
4PHASE
H.SYNC MAIN
BGP2 NL
BGP1 KILLER
0.047 B SHIFT
C-ROT DEEMPH
0
90
P
C-GND P.S B.G NC2
SUB SUBLPH
P
0 ACC
CONV 3.58M
R
BG
REC/EE/PB
DET BPF
DEMOD
3.58M R
4.21M
2.5
BPF
PB PB BPF
ALC W-LIM
B.G
NC
0 ACCD
MAIN BURST
LINE
NC DET AMP DOC
AMP CONV EMPH
R DET
C4015 2.6
BALANCER
P FMAGC
MUTE
R P
50V 2.2 KA
2.5 AGC
1.3MHZ LPF
NC
DET
REC
5.2
AGC
REC
KIL KIL
TO 43
AMP TC1
VREF
P
R PB
2.5
EQ
PB->EP
KA EQ
0 REC
REC->
AMP
EP.LP
AUTO
2.5
BIAS
SP.LP
IC4001 NC
1 2 3 4 5 6 7 8 9 10 11 12 13
2.5 2.5 5.1 0 2.5 2.5 2.5 2.5 2.5 2.5 2.3 3.1 4.1 0
NC NC
4
R4003
22K
R4016
330K
C4027
0.01 B
NOTE: THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME
OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
D E
F G
L4003_1
100uH
BUFFER
5.1
Q4005
AMP
2SC2412K
Q4003
4.2
4.2
2SC2412K 3.6
0.9
1.5
1
0.9 0 0.9
35 34 33
0
CCD-GND
CCD
GND
FSC 1H
2.3 C4047
CCD
5.1 50V 1 KA
LPF
3.6
P NC
2.1
R
BUFFER
R4032
Q4006
3.7 C4053
2SC2412K
1M
D.E
5.1
50V KA 1
3.0
C4049
C4059 C4061
2.8
NL
CLAMP
180P CH
3.1 50V 1 KA C4055 47P CH
2.2 R4044
CLAMP
16V 10 KA
2.2 1K
R4020
0.5
4.7K
MAIN NC
S-DET
EMPH
4.7
VV-H
0
0.3
MOD
S
R4007
3.0
C4054
REC N
1K
EQ 0.01 F
2.6
C4052
0.01 F
3.4
MODE
CTL
R4034
14 15 16
0.1 1.5
820
NC
4.2
3.4
R4037
SW 1.1
Q4004
470
2SA1037AK
ENV.
TP4001
NC
3
W844
AUDIO SIGNAL(PB)
PLAYBACK COLOR SIGNAL
PLAYBACK LUMINANCE SIGNAL
F G
H
8
7
6
5
4
3
FROM HEAD AMP
PB-Y/C
GND
2
PCB010
VM9172
1
H
G-2