Toshiba VTW2187 Service Manual page 50

HF2
T'TEXT/ Hi-Fi/
SOUND AMP HF_COM
HF1
CP4501
9 HF1 (R)
8 HF_COM
7
HF2 (L)
6 SP-CH1 (R)
CYL
SP_COM
5
4 SP-CH2 (L)
3 EP/LP-CH1 (R)
2 EP/LP_COM
1 EP/LP-CH2 (L)
SCL
SDA
MICON
H_SW
ENV. DET
V.REC_ST-H
CP4503
1 FE HEAD (GND)
FE HEAD (HOT)
2
CP4505
1 AE HEAD (–)
2 AE HEAD (+)
HEAD AUDIO
CONTROL
6
AUDIO REC
5 AUDIO PB
COIL, BIAS OSC
L4503
Q4502
OSC 1
Q4501
NORMAL A.
3
REC ST SW
T'TEXT/ Hi-Fi/ NORMAL_A
SOUND AMP
Y/C_AUDIO
REC_TU_V
DEMODULATOR/
21PIN/STEREO FRONT_V_IN
REAR_V_IN
DVD_VIDEO
DVD
D_V_SYNC
MICON
C_SYNC
E-5
Y/C/AUDIO/HEAD AMP BLOCK DIAGRAM
P
87
629
TRAP
86
R
85
91
REC
MUTE
90
89 REC
Fillter
73
HPF
74
80
P
ENV
2MLPF
83
DET
Q4505 ACC
V.REC ST SW
Q4506,
Q4507
PB SW
P
PRE
AMP
VCA
R
96 REC
EQ
98
6
5
1
LINE
AMP 6
AMP
Q4607
Y/C/AUDIO/CCD/HEAD AMP IC
IC4501 HA118225F
PDC/VPD DECORDER IC
IC4502 SDA5650/X
SCL
CUBS 17
4
SDA
5
8 9
MAIN
SUB
DE-EM
LPF
P
FM
P/Q EQ DLIM DEM0
AGC
Y-LPF
R
NL
DEM
E MPH
HPF
R
R
FH HPF REC Trap
CLPF1
CT1 Trap HiFi Trap
P
LPF Trap
CK
R
XTAL VCO/OSC
71 69 31
X101
4.433619MHz
33 35
37 38 40 49 51 36
LPF
Y CCD
SQUELCH
GCL
DO
N.L
DE-EM
YLR
GCL
REC+DO
P
GCL
P
C-DL
Main
Conv1
R
R
NP-
Pilot
BPF B.D.
CONV
Erase
P
R
Main
C LPF2
Conv2
P
P
R
L-DET
P
Q4606
BUFFER
Y/C VIDEO TV
29
V AMP
28
Clear
SYNC
15
V FBC/
VALC 17
19
R
21
V FBC/
VALC
23
26
42
C.K. 43
CCD
45
LPF
46
CCD
55
VCA 57
E-6