Block Diagram -Tuner Section - Sony CDX-C8850 Service Manual
Fm/am compact disc player
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Also See for CDX-C8850:
- Operating instructions manual (52 pages) ,
- Limited warranty (1 page) ,
- Service manual (82 pages)
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4-4. BLOCK DIAGRAM — TUNER SECTION —
CNP601
BUS AUDIO IN
-5 L
-6 R
R-CH
TUNER UNIT
TU101
(ANTENNA)
1 AM ANT
FM L-CH
18
2 FM ANT
FM R-CH
16
R-CH
Q752
FM8V
8
FM+B
AM DET
12
TU8V
9
+B
Q753
AM8V
10 AM+B
SEEK
13
SD
20
ST/MONO
22
FORCED
24
S-METER
S-METER
19
Q133
LO/DX
4
5 LO/DX
VT
5
28 LPOUT
VCO
6
24 FM IN
25 AM IN
AMIF
11
14
AMIF
FMIF
21
15 FMIF
REG
TU5V
TU8V
Q185
AM POWER
AM8V
TU8V
CONTROL
Q180,181
FM POWER
FM8V
TU8V
CONTROL
Q182,183
C9500
SW501
Signal path
(FREQUENCY SELECT)
FM50K
FM200K
: FM
AM 9K
AM 10K
: AM
: CD
: MIC
04
(Page 35)
5
6
BCK
CD
SECTION
LRCK
2
3
1
DATA
AUDIO SELECTOR
MCK
IC351
IC771
9
8
EMPH
16
20
14
18
IC352
2
4
1
8 9
IC752
(Page 35)
SYSTEM CONTROL
IC500 (1/2)
CD
SECTION
3
CD ON
69 CD/MD ON
EMPH
81
40 ASEL1
DSP SO
18
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
WIDE/NARROW
31
WIDE
12
SELECT
9
DSP STP
32 NARROW
Q131,132
46 VSM
DSP XMST
30
VOL CLK
58
92 XO
55
VOL LOAD
X500
PLL
VOL DATA L
56
3.68MHz
IC151
93 X1
VOL DATA R
57
SDA
13
70 SDA
SCL
12
71 SCL
SSTOP
16
120 SSTOP
AMP STBY
98
OSCI
9
X151
10.25MHz
OSCO
10
D431
CSV REQ
110
ILL CHECK
ILL
85
ILL IN
CSV SI
25
Q431
CSV CE
111
CSV SO
26
D441
CSV VCK
27
ACC CHECK
ACC
61
ACC IN
Q441
CSV RST
112
BZ500
BUZZER
DRIVE
15 BEEP
Q504
CSV ON
16
114 FMON
POW ON
62
MUTE
36
73 X1A
X501
32.768KHz
74 X0A
DSPON
96
TUON
84
50 DSTSELO
TELMUTE
83
X300
16.9344MHz
76
75
40
41
IC601
3
1
71 S1I
FL
27
35
LIN
5
7
DSP
RL
29
IC300
58
BFOT
SUB OUT
43
63 62
61 60 59
57 82 77
IC843
1
IC351
11
MIC AMP
CNJ252
IC841
(MIC IN)
50
AN1
DAC
D0-D7
35 REQ
CSV CONTROL
36
DI
IC801
37 CE
38
DO
A0-A15
39 CLK
21
RST
POWER
19
20 26
BU5V
CONTROL
CSV5V(D)
Q801,802
X801
14.318MHz
POWER
REG
VDD5V
CONTROL
D3.3V
IC404
Q402,463
REG
A3.3V
IC401,Q401
37
37
ELECTRONIC
VOLUME (Lch)
LINE AMP
IC602
IC604
IC603
5
7
4
IN1
OUT1
6
2
INFL
OUTFL
13
3
1
2
IN2
OUT2
20
7
INRL
OUTRL
12
Q601
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
3
MUTE
DRIVE
Q472-474
AMP MUTE
Q471
48
CSV5V
REG
Q841
(A)
VOICE
CSV PROGRAM
MEMORY
ROM
REG
IC805
IC803
9V
IC402
REG
TU8V
IC803
ADDRESS
SELECTOR
DECODER
IC804
IC802
POWER
BATT
CONTROL
Q461,462
Q451
CDX-C8850/C9500
-1
FL
-3
RL
CNP601
LINE OUT
-2
FR
R-CH
-4
RR
Q631
L
SUB OUT
R-CH
R
POWER AMP
IC481
CNP401
1
5
FL+
12
9
3
FL-
2
9
RL+
11
10
7
RL-
4 22
9V
10V
10V
F901
16
BATT
BATT
7
ACC
ACC
14
ILL
ILL
5
AMP REM
AMP REM
6
ANT REM
ANT REM
TEL MUTE
13
ATT
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