Toshiba MV20FL4 Service Manual page 49

HF2
HIFI
HF COM
HF1
CP4001
9 HF1(R)
8 HF COM
7
HF2(L)
6 SP-CH1 (R)
CYL 5 SP_COM
4 SP-CH2 (L)
3 EP/LP-CH2 (R)
2 EP/LP_COM
1 EP/LP-CH2 (L)
CP4003
1 FE HEAD (HOT)
FE HEAD
2
FE HEAD (GND)
CP4002
AUDIO PB
6
5 AUDIO REC
HEAD
4 CTL+
AUDIO
CONTROL
CTL-
3
2 AE HEAD(-)
1 AE HEAD(+)
Y/C/AUDIO/CCD/HEAD AMP/IN/OUT BLOCK DIAGRAM
X4001
3.579545MHz
Q4012
BUFFER
Y/C/A/CCD/H.AMP IC
IC4001
LA71201M-MPB
50 49 41
PLL
VX01
67
P L
H
66 R
HA
GND
65 P
72
P H
L
73
R
C-LPF
74
P
9
REC AMP
7
8
EQ
AUTO BIAS
AMP
6
PB.EE
11
3 4 5
COIL, BIAS OSC
T4001
Q4005
5 2 BIAS CTL
6 3
Q4006
BIAS OSC P. CON + 5V
4 1
Q4001, Q4002 Q4003
SW
AUDIO PB SW
Q4010
BUFFER
38
43 37
VSS
REC REC
APC APC
3.58M
BPF2
R P
CLAMP AUTO-BIAS
Main
CONV
CCD
B-UP
AGC
AMP
VCA
ACC
3.58M
DET BPF1
VIDEO
AGC
NYR/COMB
1
2
R ALC
LINE
3
1 2 3
LPF
AMP P
MUTE
32
2 10 80 76 30
L4007
2 3
41
53
SERAIL
54
DECODER
55
OUT
36
39
SYNC
C-ROT
SEP 57
RF-SW IN
AUDIO
58
MUTE HA SW
QV-QH 59
ENV DET
60B
Q4009
24
SYNC
SEP
Q4007
BUFFER
26
25
SYNC IN
28
FSC
REAR_VIDEO_IN HIFI
FRONT_VIDEO_IN
Y/C_CLK
MICON/ POWER/
Y/C_DATA
OPERATION/ DECK
Y/C_CS
H. SW
VCR_A_MUTE
ENV. DET
V.REC_ST-H
MICON/ POWER/
OPERATION/ DECK
DUMMY_V. SYNC
SD_VIDEO
SD_SYNC
TV
TU1_VIDEO
NORMAL_A
HIFI
Y/C_AUDIO
MICON/ POWER/
CTL+
OPERATION/
DECK
CTL-