Service manual

IC Block Diagrams
-7-
VDD
VDD
VDD
VDD
MIRROR 2
VDD
FLASH-
DIODE
1x
VOC
Inverting
Input
(3x)
1,2,3
9,8,7
3x
VDD
6
5
4
Non-inverting
Input
Vip
MIRROR 1
V
bias
MIRROR 3
LEVEL-
SHIFTER 1
LEVEL-
SHIFTER 2
DIFFERENTIAL
STAGE
CURRENT
SOURCES
GND
THERMAL
PROTECTION
Note: One amplifier shown.
Cathode
Output
(3x)
Vi
IC701 < Triple Video Output Amplifier > TDA6103Q/N3
10
11
LFLT
VCO
12
PCINT1
PCINT2
PLINT
13
VCA
LPF
FLT
19
COMPIN
Vcc
17
Analog Block GND
23NOISETC
18
SAPTC
14
15
VGR
IREF
IREF
7
6
5
I
2
C BUS I/F
Digital Block GND
SCL
SDA
SAPIND
NOISE
DET
SAPVCO
BPF
STIND
1/4
1/2
LPF
DeEm
LPF
LPF
DeEm
AMP
(+4dB)
LPF
SW
24
25
22
SAPOUT
SAPIN
STIN
26 27
28
VE
VEWGT
LPF
HPF
LOGIC
NRSW/FOMO/SAPC
VCA
21
9
SUBOUT (L-R signal output)
MAIN OUT (L+R signal output)
8
MATRIX
VE
VCA
RMSDET
RMSDET
29
30 32 31
1
VETC
VEOUT
VCAIN
VCAWGT
VCATC
TREBLE OUT-L
SPECTRAL
34
33
FEXT1
TVSW
EXT1/EXT2/M1
M2
SURR
SURROUND
BASS
BASS
TREB
BASS
TREBLE
TREB
VOL-L
VOL-L
VOL-R
48
VOLIN-L
4
LSOUT-L
3
LSOUT-R
VOL-R
VOLUME RIGHT
CHANNEL INPUT
43
44
TREBLE OUT-R
41
47
TREBLE FILTER-L
45
2
BASS FILTER-L
40
SURRTC
38
TVOUT-R
39
TVOUT-L
36
37
AUX2-L
(Left channel
external input)
FEXT2
INPUT PIN OF (L+R) SIGNALFROM MAIN OUT(PIN9)
(+6dB)
WIDEBAND
"STEREO"
"NOISE"
"SAP"
"PONRES"
ATT/ATTSW
BASS FILTER-R
(Stereo block PLL loop filter integrating pin)
(Pilot cancel circuit loop filter intergrating pin)
(Audio multiplexing
signal input)
AUX2-R
(Right channel
external input)
TREBLE FILTER-R
AUX1-L(Left channel external input)
AUX1-R(Right channel external input)
(Band gap reference output)
(Sap FM detector output)
(Input of L-R signal from SUBOUT)
(Input of SAP signal)
(Variable de- emphasis integrating pin)
(Variable de-emphasis output pin)
IC3401 < MTS Decoder, Audio Control & Switch > CXA2134Q-T6