Sony XR-CA600X Service Manual page 21

• IC Block Diagrams
– MAIN Board –
IC331 TDA7406T
33 32 31 30 29 28 27 26 25 24
MIXER
FRONT REAR
OUTPUT
SELECTOR
SWIN 34
ACINR 35
SUB
MAIN SW
WOOFER
FILTER
ACOUTR 36
HPF
SWACOUT 37
+
ACOUTL 38
7 BAND
EQUALIZER
SOFT STEP
VOLUME
SOFT MUTE
CREF 39
LOUDNESS
+
IN-GAIN
+AUTO ZERO
BEEP
MAIN SOURCE MIXING
SELECTOR SELECTOR
CDL 40 INPUT
CD
MULTIPLEXER
CDR 41
MDL 42
MD
MDR 43
TAPEL 44
1 2 3 4 5 6 7 8
23 22
SPECTRUM
ANALYZER
HIGH-CUT QUAL
PULSE
S & H
FORMER
25kHz
LPF
MULTIPATH
DEMODULATOR
DETECTOR
+STEREO ADJUST
+STEREO BLEND
D/A
CONVERTER
PILOT
CANCELLATION
PILOT
DET
PLL
FM/AM
NOISE BLANKER
80kHz
LPF
STD
FM
IN GAIN
AM
PAUSE
9 10 11
IC301 CXA2509AQ-T4
30 29 28 27 26
120µ/70µ
T2
– +
21 SACLK
PBFB2 31
X1
PBRIN2 32
PBREF2 33 F2
PBFIN2 34
20 SCL
19 SDA
VCT 35
VCT
PBGND 36
18 GND
+ LPF
17 ATT
PBFIN1 37
F1
PBREF1 38
X1
PBRIN1 39
16 PBFB1
QUAL 40
T1
120µ/70µ
1 2 3 4 5 6
15 MPOUT
14 MPIN
13 LEVEL
IC611 BA4908-V3
REGULATOR
OVER VOLTAGE
PROTECT
–
+
12 MPX1
1 2 3 4 5 6 7
21 21
IC351 LB1930M-TLM
VCC
NC
IN1
25 24 23 22 21
24dB
IN2
+ –
S-GND
20 MSMODE
NR BIAS MS
19 DRSW
MODE
TAPE/AUX
18 TAPESW
17 INSW
TAPE EQ
16 NC
FWD/RVS
IC581 BA8270F-E2
VCC 15 NC
MS ON/
OFF
+
DETECT
– BUS ON
14 MSOUT
F3
13 DGND
RST
12 MSTC
BATT
11 G1FB
CLK
24dB
VREF
DATA
7 8 9 10
GND
8 9 10 11 12
XR-CA600X/CA620X
NC
1 10
BUFFER
2
3 9 OUT1
MOTOR
CONTROL
DRIVE
8 NC
CIRCUIT
CIRCUIT
4 7 OUT2
BUFFER
P-GND
5 6
BUS ON VCC
14
1
SWITCH
RESET
2 13 RST
SWITCH
12 BUS ON
11 CLK IN
BATTERY
3 10 BU IN
SWITCH
4
5
6 9 DATA IN
7 8 DATA OUT