Y/C/Audio/Head Amp; Micon - Toshiba MW27FN1R Service Manual

CP4501
EP/LP-CH2 (L)
1
EP/LP_COM
2
3 EP/LP-CH1 (R)
SP-CH2 (L)
4
CYL 5 SP_COM
6 SP-CH1 (R)
HF2 (L)
7
8 HF_COM
HF1 (R)
9
HF1
HI-FI/
HF_COM
DEMODULATOR
HF2
CP4503
1 FE HEAD (HOT)
FE HEAD
2 FE HEAD (GND)
CP4502
6 AUDIO REC
5 AUDIO PB
HEAD
4 CTL+
AUDIO
CONTROL 3
CTL-
AE HEAD(+)
2
1 AE HEAD(-)
E-3
Y/C/AUDIO/HEAD AMP BLOCK DIAGRAM
X4501
3.579545MHz
Y/C/AUDIO/HEAD AMP IC
IC4501
LA71205M-MPB
50 49
VX01
TIMMING
L
67
H.SW
H
66
AGC
AMP
H
P R
65
H.AMP
SW
72
L
R
FM
AGC
73
DELAY
H
PB
H.SW
FM-EQ
74
L
PB
PHASE-EQ
9
REC AMP
7
8
AUTO BIAS
EQ
6 AMP
PB.EE
Q4506
AMP
11 4
5
COIL, BIAS OSC
L4502
Q4505
BIAS CTL
5 2
6
3
Q4504
BIAS OSC
4 1
Q4503
Q4501, Q4502
AUDIO PB SW SW
Q4507
Q4509
BUFFER
BUFFER
39
41
37
PULL
OUT
DRIVER CCD CLAMP
REC WC NL DETAL
FM
EMPHA ENH
FM-EQ DC
MOD
KIL V/I
CONV
C-LPF
Y-LPF
Main 3.58M
B-UP
GCA
AMP CONV BPF2
P
P ACC
3.58M
AMP
BPF1
R
KIL
PB
B.D. AMP
DOUBLE FM SUB
LIM DEM
LPF
LINE
AMP
V-AGC
LPF
R
P
P
ALC
ALC
DET
MUTE
3 10 32 30 28
2 80 78 76
55
SERIAL
54
DECODER
53
CLAMP 22
P P
21
R
R
YNR/ VCA 36
COMB
CLAMP 34
N.L.
DEEM
H.AMP SW/
NC1
AUDIO
58
MUTE
Y/C MIX
1/2
C ROT
57
P RF SW IN
FBC
R
ENV DET 59
Chara
COMP 60
INS.
R
OUT
24
SYNC
6dB
26 Q4511
SEP
BUFFER
Y/C_CS

MICON

Y/C_DATA
Y/C_CLK
H. AMP_SW1
C. ROTARY
H. SW
VCR_A_MUTE
MICON
ENV. DET
VIDEO OUT
COMP
DUMMY_V. SYNC
Y/C_VIDEO
Y/C_VIDEO
DIGITAL
AUX_V[F/R]
COMB FILTER
TUNER_VIDEO
V SYNC
CHROMA/IF
NORMAL_A
HI-FI/
Y/C_AUDIO
DEMODULATOR
FSC
DVD IN/OUT
DVD_VIDEO
V.REC_ST_H
MICON
CTL+
CTL-
E-4