Sony MDX-CA680 Service Manual page 21

– MAIN Board –
IC401 TDA7402TR
ACINLF 34
SWINR 35 ACIN
SWINL 36
ACOUTR 37
MAIN
ACOUTL 38
CREF 39
LP
VOICE
BANDPASS
HP
BASS
TREBLE
VOLUME
SOFTMUTE
COMPANDER
LOUDNESS
MUX
40
+
IN-GAIN
+AUTO ZERO
MAIN SOURCE MIXING
SELECTOR SELECTOR
MD1 41
MAIN
MD1G 42
INPUT
MULTIPLEXER
MD2 43
PHONO
MD2G
44
MAIN CH0
1 2 3 4 5 6
33 32 31 30
MONO- MONO-
FADER FADER
FRONT
OUTPUT
REAR
SELECTOR
SW
SECOND
LOUDNESS
IN-GAIN
MUTE
SECOND SOURCE
SELECTOR
FM
AM
AUX
7 8 9 10 11
29 28 27 26
MIXER
MONO- MONO- MONO-
FADER FADER FADER
SUBWOOFER
+PHASE
CONTROL
HIGH-CUT
S&H
25kHz
LP
DEMODULATOR
+STEREO ADJUST
+STEREO BLAND
BEEP
PILOT
CANCELATION
PIL DET
PLL
AM/FM
NOISE BLANKER
MDX-CA680/CA680X
25 24 23
MONO-
FADER
22 VDD
21 SCL
20 SDA
SUPPLY
19 GND
18 SM
PULSE
FORMER
QUAL
17 QUAL
16 MPOUT
MULTIPATH
DETECTOR
15 MPIN
D/A
14
LEVEL
CONVERTER
80kHz
13 MPX
LP
12 AMIF
21