Block Diagram -Tuner Section - Sony CDX-C8850R Service Manual

4-4. BLOCK DIAGRAM — TUNER SECTION —
CNP601
BUS AUDIO IN
-5
L
-6
R-CH
R
TUNER UNIT
TU101
(ANTENNA)
1 AM ANT FM L-CH 18
2 FM ANT FM R-CH 16 R-CH
Q752
AM DET 12
FM8V 8 FM+B
TU8V 9 +B
Q753
AM8V 10 AM+B
SEEK 13
SD 20
ST/MONO 22
FORCED 24
FM RDS
S-METER
RV131
S-METER
S-METER 19
Q133
BUFFER
Q130
FM DET 23 16 MPX
LO/DX 4 5 LO/DX
VT 5 28 LPOUT
VCO 6 24 FM IN
RDS 15 25 AM IN
AMIF 11 14 AMIF
FMIF 21 15 FMIF
RDS DEMODULATOR
ILL
IC901
16 MPX SDA 9
20 LVIN SCL 10
ACC
4 OSCO
X904
DAVN 8
4.332MHz
5 OSCI MPTH 2
MEMORY
IC951
X951
4.19MHz
DIN 8
DOUT 12
SAD 17
Signal path
SAS 16
: FM
TAS 15
: MW CS 14
WE 13
: CD
2
: MIC
AMP
IC131
04
(Page 37)
5
CD
BCK
SECTION
LRCK
2
1
DATA
AUDIO SELECTOR
MCK
IC771
9
EMPH
16
20 14
18
IC352
4
AM/TIR
8 9
SELECTOR
IC752
2
6
TIR PLAY
7 SW
SYSTEM CONTROL
1 Q754
IC500 (1/2)
10 TIR PLAY
CD
3
CD ON 69 CD/MD ON EMPH 81
SECTION
40 ASEL1 DSP SO 18
(Page 37)
37 ASEL0 59
DSPXLAT
MUTE
DRIVE 118 AFMUTE DSP SI 17
Q751
DSP REDY 79
117 SEEK DSP CK 19
23 SD IN 28
DSP RST
29 ST/MONO
9
WIDE/NARROW DSP STP
31 WIDE
SELECT
32 NARROW
Q131,132
DSP XMST 30
46 VSM VOL CLK 58
PLL
92 XO 55
VOL LOAD
IC151
X500
VOL DATA L 56
3.58MHz
VOL DATA R 57
93 X1
SDA 13 70 SDA CSV PLAY 11
SCL 12 71 SCL
SSTOP 16 120 SSTOP AMP STBY 98
OSCI 9
X151
10.25MHz
OSCO 10
CSV REQ 110
D431
ILL CHECK
CSV SI 25
85 ILL IN
Q431
CSV CE 111
CSV SO 26
CSV VCK 27
CSV RST 112
D441
ACC CHECK
61 ACC IN
Q441
69 RDS DAVN
53 MPT CSV ON 16
POW ON 62
TIR CONTROL
MUTE 36
IC951
26 LIN AOUT 18
X1A 73
47 XT D0–D3 1–4 99–102
TIR D0-D3
BUSY 5 3 TIR BUSY
X0A 74
CE1 11 106 TIR CE0
48 XT
PDOWN 35 4 TIR PDOWN
44 DI/O DSPON 96
RESET 53 5 TIR RST
39 SADX
WR 54 104 TIR WR
36 SAS
BEEP
RD 55 103 TIR RD 15
37 TAS
CE2 56 105 TIR CE1
40 CS1
46 WE TUON 84
TELMUTE 83
7
52 QUALITY
FM ON 114
Q134
116 NS MASK
6
X300
16.9344MHz
3
76 75 40 41
IC351 IC601
8 3
71 S1I FL 27
35 LIN
5
DSP
RL 29
IC300
2
58 BFOT
SUB OUT 43
1
63 62 61 60 59 57 82 77
R-CH
CSV MIX
IC691
IC351
12 11
CSV PLAY
SW
Q691
MIC AMP
IC841
50 AN1
CNJ252
(MIC IN)
35 REQ
CSV CONTROL
36 DI
IC801
37 CE
38 DO
39 CLK
21 RST
POWER
19 20 26
BU5V CONTROL CSV5V(D)
Q801,802
X801
14.318MHz
X501
POWER
REG
32.768kHz
VDD5V CONTROL D3.3V TU8V
IC404
Q402,463
REG
A3.3V
TU8V
BZ500
IC401,Q401
BUZZER
DRIVE
Q504
TU5V
39 39
ELECTRONIC
VOLUME (Lch)
LINE AMP
IC602
IC604
IC603
1 5 7
4 IN1 OUT1 6 2 INFL OUTFL 13
7
3 1
2 IN2 OUT2 20 7 INRL OUTRL 12
9 10 11
ELECTRONIC
VOLUME (Rch)
R-CH
IC632
IC661 IC663
5 7 5 7
18 IN3 OUT3 16
FR FR
4 IN1 OUT1 6
R-CH R-CH
RR 2 IN2 OUT2 20 RR
D491
9 10 11
IC843
1 3
MUTE
DRIVE
Q472-474
DAC 48
D0-D7
CSV5V
(A)
VOICE CSV PROGRAM
MEMORY ROM
IC805 IC803
9V
A0-A15
TU8V
ADDRESS
SELECTOR
DECODER
IC804
IC802
AM POWER
REG
CONTROL AM8V TU8V TU5V
Q185
Q180,181
FM POWER
CONTROL AM8V
POWER
Q182,183
BATT CONTROL
Q461,462
POWER
CONTROL RDS5V
Q901
CDX-C8850R
FL -1
FRONT
L
RL
-3
REAR
L CNP601
Q601 LINE OUT
-2
FR FRONT
R
R-CH
-4
RR REAR
R
Q631
-1
L
SUB OUT
-2
R-CH
R
POWER AMP
IC481 CNP401
1
5
FL+
12
9
3
FL-
2
9 RL+
11
10
7 RL-
4 22
AMP MUTE
Q471
REG
9V
Q841
REG
10V
IC402
REG
10V
IC403
F901
16
BATT BATT
7
ACC ACC
14
ILL
ILL
5
AMP REM
AMP REM
6
ANT REM
ANT REM
Q451
13
TEL MUTE
ATT