Sanyo C21LF37 Service Manual page 7

IC Block Diagrams
IC002 < Audio AMP. > LA42052-E
STANDBY
5
INPUT AMP. OUTPUT AMP.
2
IN1
AMP
REF AMP.
PRE
3
AMP
GND
AMP
4
IN2
INPUT AMP.
POP NOISE PREVENTION
RIPPLE FILTER
BLOCK
1
RIPPLE
FILTER
IC3401 < MTS Decoder, Audio Control & Switch > CXA2134Q-T6
(Audio multiplexing
signal input)
COMPIN
13
VCA
ATT/ATTSW
Vcc
19
Analog Block GND
17
NOISETC 23
SAPTC 18
IREF
14 15
VCC
7
AMP 12
OUT1
THERMAL
POWER
10
PROTECTION
GND
CIRCUIT
8
AMP OUT2
OUTPUT AMP.
BLOCK
6
P.P
10 11 12
LFLT 1/4
VCO
FLT
"STEREO"
DeEm
LPF
(+6dB)
STIND
BPF LPF
SAPVCO
NOISE
DET
"NOISE"
"SAP"
SAPIND
2
I C BUS I/F
"PONRES"
5 24
7 6 25
IC1201 <VIDEO SW >
LA7016
OUTPUT Vcc
4
1
INPUT 2 2
7
INPUT 1
3
5
CONTROL
GND
INPUT
21 9
1/2
LPF VCA
WIDEBAND
LPF
NRSW/FOMO/SAPC
LOGIC
DeEm
VE
HPF RMSDET
SPECTRAL
AMP
LPF LPF
(+4dB)
SW
22 26 27 28
-7-
IC501 < Vertical Output >
LA78040N-E, TDA9302H
8 -
N.C.
AMP
6
N.C.
+
Pump
Up
1 3
2
8 34 33
MATRIX
TVSW
SURROUND
VCA
RMSDET
29 30 32 31 1 48 4 3
Thermal
Protection
4 5 6
7
FEXT2
AUX2-L
(Left channel
37
external input)
AUX2-R
36
(Right channel
external input)
39 TVOUT-L
38 TVOUT-R
40 SURRTC
2 BASS FILTER-L
45
BASS FILTER-R
47 TREBLE FILTER-L
41 TREBLE FILTER-R
44 TREBLE OUT-R
VOLUME RIGHT
43
CHANNEL INPUT