Toshiba W-707 Service Manual page 106

7-6. Video and Conventional Audio Block Diagram
65
5V
VIDEO IN
RF
VIDEO OUT
RF
8
VIDEO OUT
P990
Q210
ICF01 MM1113XB
1
LINE1 VIDEO IN
P990 7
3
LINE2 VIDEO IN
P990
IC201
TA1251BF
Y / C SIGNAL PROCESSOR
TO CONVENTIONAL AUDIO PB
76
HIFI AUDIO CONVENTIONAL AUDIO REC
TUNER AUDIO (N)
73
DE–EMPH
74
CIRCUIT
77
5 AUDIO REC REC
78
PRE–EMP
AUDIO PB / REC 4
AUDIO PB
79
68
6
BIAS 75
HEAD
GENERATOR
AE HEAD
CONVENTIONAL AUDIO CIRCUIT
SWITCH
2
FE HEAD
Q206
MAIN
DE–EMPH
63 59 58 62 55
P R
W / C
O / C
PB
AMP
C TRAP
MAIN
EMPH
REC FM
FM–MOD CLAMP
EQ
R
P R
S / N
P
JUDGE
P R
DOC
DET DET
FM–AGC AGC
DET DET
ACK
PB–FM FM SUB
D.LIM
EQ DEMOD LPF
fH
TRAP
9dB
DIV
PB ALC
AMP
REC
MUTE
PB
AMP
REC
AMP
MUTE MUTE
CONTROL BIAS
1 2 4 15
53 51 49 47 46 44
SYNC YNR
SEP DOC
ANR
AGC AMP R P
DET AGC
CLAMP
R
NL–EMPH
DE–EMPH
PV / PH
P
P R MUTE
PB
R P
CLAMP
P
CLAMP
MAIN
DPE
R
LPF
TRAP
CH
ACC
Y / C
P
TIME
B–EMPH
REC C MAIN
DE–EMPH
LPF CONV
REC–C–LEV
R
C–ACC B–ACC B–ACC
DET DET AMP
P R
PB / SP
/ TRICK
APC SUB
ACK
DET LPF
P
VXO / XO
R
17 19 21
X401
PLAYBACK Y SIGNAL
PLAY AUDIO
REC AUDIO
PLAY VIDEO
REC VIDEO
42
GCA
40
39
1H
37
DELAY
IC101 TA8894BF
2
4Fsc
35
VCO
3
SP
SLP
PB–C
64
LPF
PLAYBACK
COLOR
SIGNAL
C–COMB 30
MAIN
28
BPF
OSD VIDEO
PV / PH / BLK
P
COMP SYNC
REC (H)
A.MUTE
26
16dB
24
+
EQ
CYLINDER
–
P101
SP–A
VIDEO
+ 9 5
SP–B
MUTE
REC Y–C
SLP–A
10 4
–
PB Y–C
SLP–B
TO SERVO / LOGIC
Fig. 7-6-1