Block Diagram -Tuner Section - Sony cdx-c8050x Service Manual

3-3. BLOCK DIAGRAM — TUNER SECTION —
TUNER UNIT
TUX201
ANT1
(ANTENNA) 1 AM ANT MPX 10
AM IF
19
FM ANT AMDET
2 8
SW SHIFT
7
S METER 14
SDA IIC 12
SCL IIC 13
FM AGC
4
SDA EEPROM
17
SCL EEPROM 18
04
ELECTRONIC VOLUME
IC301
1 SEL OUT FL 30
3 FL 34 ACINLF
RL
33 AC INLR
TO DISPLAY
SR 35 SWINR
SECTION
ADL 38 ACOUTL OUT RL 29
(Page 28)
13
MPX
12 AM IF
11 AM
15 MP IV
Q202 Q205 OUTSWR 25
14
S METER
20 SDA
21 SCL
QUAL 17
18
EXTATT
MUTE
SYSTEM CONTROL
CONTROL
IC502 (2/3)
Q206,207
31 VOL ATT
32
TU ATT
QUALITY 50
BATT
AMP ON 55
TEL ATT 96
ILL IN 95
ACC IN 81
73
XIA
SW SHIFT
21 XDA 74
53 VSM
70 I2CSIO
71 I2CCKO 84
TEST
51 FM AGC
83
PW ON
10 E2PSIO
XO 92
11 E2PCKO
XI 93
REG
TU8V TU5V
Q201
TU ON 113
27
L-CH LINE DRIVER
IC303
2 3
Q356
7 12
Q358
SUB LINE DRIVER
IC304
R-CH
7 12
4
Q360
MUTE
POWER AMP
ATT CONTROL
TO CD
Q354, 355
SECTION
(Page 26)
Q353
12
11
22 MUTE
POWER
CONT.
Q363,365
4 STBY
Q111
ILL
DET
X103 ACC
Q113
DET
32.768kHz
Q112
POWER
X104
CONT COM 8V BATT
3.68MHz BATT
Q107-109
POWER
COM8V CONT TU 8V
Q203,204
27
CN302
–1
L
BUS AUDIO IN
–2
R-CH R
–5
L
AUDIO OUT
–6 FRONT
R-CH R
–3
L
AUDIO OUT
–4 REAR
R-CH R
CN301
–1
L
SUB OUT
–2
R-CH R
IC351 CN101
1
5 FL+
9
3 FL–
2
9 RL+
10
RL–
7
4
FR+
12
FR–
R-CH 3
RR+
11
RR–
13
TEL MUTE
14
ILL
7
ACC
15
TEST
5
AMP REM
POWER
6
CONT. ANT REM
Q364,366
16
BATT BATT
CDX-C8050X