Toshiba MV20FM3 Service Manual page 53

HF2
HF COM
HI-FI
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
6
AUDIO PB
5
AUDIO REC
HEAD
4 CTL+
AUDIO
3 CTL-
CONTROL
2
AE HEAD(-)
1 AE HEAD(+)
E-3
Y/C/AUDIO/CCD/HEAD AMP BLOCK DIAGRAM
X4001
3.579545MHz
Q4012
BUFFER
Y/C/A/CCD/H.AMP IC
IC4001
LA71205M-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
VREF
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
Q4003
Q4001, Q4002
AUDIO PB SW SW
Q4010
BUFFER
38
43 34 37
VSS
REC REC
APC APC CLAMP
3.58M
BPF2
R P
CLAMP AUTO-BIAS
Main
CONV
CCD
B-UP
AGC
AMP
VCA
ACC 3.58M
DET
BPF1
VIDEO
AGC
YNR/COMB
1
2
R ALC
LINE
3
1 2 3
LPF
P
AMP
MUTE
32
2 10 80 76 30
L4007
2 3
41
58
53
SERAIL
54
DECODER
55
OUT
36
39
SYNC
C-ROT
57
SEP
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
HI-FI
FSC
MICON/
FRONT_VIDEO_IN
OPERATION/
REAR_VIDEO_IN IN/OUT
VCR_A_MUTE
MICON/
Y/C_CLK
OPERATION/
Y/C_DATA
IN/OUT
Y/C_CS
H. SW
VCR_A_MUTE
ENV. DET
MICON/
V.REC_ST-H
OPERATION/
IN/OUT
DUMMY_V. SYNC
SD_VIDEO
SD_SYNC
MONITOR_V
TV
TU1_VIDEO
NORMAL_A
HI-FI
Y/C_AUDIO
MICON/
CTL+
OPERATION/
CTL-
IN/OUT
E-4