Block Diagram -Tuner Section - Sony CDX-CA850X Service Manual

CDX-CA850/CA850X/CA860X
3-3. BLOCK DIAGRAM — TUNER SECTION —
TUNER UNIT
TUX201
CN201
(ANTENNA) AM ANT MPX
1
2 FM ANT AMDET
RDS DET
S METER
SDA IIC
SCL IIC
SDA EEPROM
SCL EEPROM
• Signal path
:CD
:FM
:AM/MW/LW
1
CDL
CD ELECTRONIC VOLUME
SECTION
(Page 23)
4 AUXL
ADSO(L-CH)
IC304
43 MDL
3 1 33 AC INL
38 ACOUTL
10 12 MPX1
8 9 AM
16
QUAL
14 MP IN
19 SDA
20 SCL
17 SM
CA850
SYSTEM CONTROL
IC501 (2/3)
IC202
31
VOL ATT
RF AMP NOISE
2 7 50
QUALITY
Q204 DET
Q205 16 NS MASK
RDS DECODER
IC201
MPT 2 52 MPTH
DAVN 8 75 DAIN
SCA 10
9 16 MPX
9
SDA
LVIN 20
14 53 VSM
12 70 I2CSIO
13 71 I2CCKO
10 E2PSIO
17
18 11 E2PCKO
CA850/CA850X
CA860X
IC301
OUT FL 28 3 1 2 13
BUFFER BUFFER
IC308 IC302
OUT RL 27 5 7 7 12
CA850/CA850X
CA860X
SUB WOOFER AMP
IC310
OUTSW 24 1 4
SA CLK 21
23
SA OUT
CA850/CA850X
4
MUTE
ATT
CONTROL
CD
Q303, 304
SECTION
(Page 23)
SA CLK
SA OUT
DISPLAY
PWON
SECTION
(Page 25)
15
BEEP
AMP ATT 9
POWER
BATT
CONT.
Q104(1/2),105
AMP ON 30
TEL ATT 109
ILL IN 110
117
ACC IN
73
XIA
DET
X501 ACC
Q102
32.768kHz DET
XDA 74
Q101
TEST 108
83
PW ON
XO 92
POWER
X502
CONT
3.68MHz BATT
XI 93
Q801-803
TUN ON 113
POWER
CONT
COM8.5V
Q201,202
24 24
CN302
–1
L
–2
R-CH R
–5
L
Q306
–6
R-CH R
–3
L
Q308
–4
R-CH
R
CN301
L
R
POWER AMP
IC351
CN101
Q310
1
FL+
5
12
9
3
3 FL–
2
9 RL+
11
10
7 RL–
16 BEEP
22 MUTE
4 STBY
4
FR+
12
FR–
Q103
R-CH 3
RR+
ILL
11
RR–
13
TEL MUTE
14
ILL
7
ACC
15
TEST
5
AMP REM
POWER
6
COM 8.5V BATT CONT. ANT REM
Q104(2/2),106
16
TU 8V BATT BATT
CA860X
+5V
REG TU 5V
Q207
+10V
1 REG 3 10V
IC801
BUS AUDIO IN
AUDIO OUT
FRONT
AUDIO OUT
REAR
SUB OUT