Block Diagram -Main Section - Sony CDX-F7500 Service Manual

Q Q
3 7 6 3 1 5 1 5 0
3-3. BLOCK DIAGRAM — MAIN SECTION —
TUX501
(TUNER UNIT)
J601
1 ANT
(ANTENNA)
VCC
TU VDD
E2P VDD
TU-SCL
T E
L 1 3 9 4 2 2 9 6 5 1 3
TU-SDA
S-METER
TU MUTE
E2P SCL
E2P SDA
MUTE CONDITION
QUALITY
RDS
• R-CH is omitted due to same as L-CH.
• Signal Path
w w w
.
ELECTRONIC VOLUME
IC401
PB LCH
PB RCH
OUTSW
CD
A
CD-L 42 CD LCH
SECTION
R-CH 43 CD RCH
(Page 20)
OUT RF
OUT RR
L 4 40 TUNER LCH
R
3 41 TUNER RCH
OUT LF
OUT LR
SA IN
SA OUT
10 AU+8V MUTE
11 TU+5V
15 BU+5V
SDA
SCL
13
SDA
14
SYSTEM CONTROL
IC303 (2/3)
IIC CKO
IIC SIO
6 82 VSM
VOL ATT
7 32 TUNER ATT
16 34 EECKO
BEEP
17 33 EESIO
AMP STB
8 73 TU ATTIN
AMP DIAG
SA IN
5 80 QUALITY
SA CLK
Q380
BUS/AUX
19 NS MASK
ACC IN
RDS DEMODULATOR TEL ATT
IC550
TEST IN
SCL
9 16 MPX SCL 9
SDA ILL IN
10
SDA
4 OSCO
X550
4.332MHz
DAVN 8 17 DAVN
5 OSCI
BU IN
UNI SI
: CD PLAY UNI SO
UNI CKO
: FM
BUS ON
: MW/LW
SYS RST
SYS RST
LINK OFF
x a o
BUS ON y
UNI SCK
CD
B
SECTION UNI SO
i
(Page 20)
UNI SI
ATT
BU CHECK
BU CHK
DET
Q270,273
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8
F7500
AMP
F7700
IC470
2 1
MUTE
F7500
Q470
4
7 R-CH AMP
IC402
17
8 14
11 13
22
R-CH MUTE MUTE
21
Q171 Q181
AMP
IC431
25 3 1
24 5 7
14
MUTE MUTE
16
Q451 Q450
F7700
15
SCL
SCL 13
SDA
12 D401
MUTE CONTROL
BATT
Q401,402
Q Q
3 7 6 3
SCL
27
SDA
28
26
D904
ATT 25
20
41
40
83
23
66
68
24
63
69
BUS INTERFACE BU+3.3V
IC110
BATT 3
18 10 B CHK
DATA I/O 6
30 8 DATA OUT
CLK 4
29 9 DATA IN
11 CLK IN
31
BUS ON 1
64 12 BUSON
2
RST
65 13 RST
D301
D302
RESET
u 1 6 3
.
21 21
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2 4
9 9
GROUND SW
Q408
R-CH
R-CH
R-CH
CONTROLLED POWER AMP/
MULTIPLE VOLTAGE REGULATOR
IC201
12 INFL FL+ 5
FL- 3
11 INRL
RL+ 9
RL- 7
F7700
R-CH
SW1
29
1 5 1 5 0 8 9 2
SW2 27
F901
SDA
2 SDA
BATT
SCL
4 SCL
REG1 30 AU+8V
REG2 37
BU+5V
16 ACGND
REG3
31 CD+3.3V
22 STB
REG4 33 CD+6V
25 DIAG
REG5 34 ILL+B
BATT 35 VP
ACC CHECK
Q102
TEL ATT
Q103
ILL CHECK
Q907
+3.3V REG TU+5V REG
BU+5V TU+5V AU+8V
IC271 Q501
D105
BATT DET
BATT
Q101
BUS ON SWITCH
Q110,112
(Page 22)
m
DISPLAY
C BATT
SECTION
LINK ON/OFF
SWITCH
c o
Q111
CDX-F7500/F7700
2
8 9 9
CN401
SUB OUT(MONO)
L
BUS
AUDIO IN
R
L
REAR
PJ401
AUDIO OUT
R
L
FRONT
AUDIO OUT
R
CNP101
1
FL+
9
FL-
2
RL+
10
RL-
4
FR+
12
FR-
3
RR+
11
RR-
5
4 9 AMP-REM 8 2 9 9
6
ANT-REM
16
BATT
7
ACC
13
ATT
15
TEST
14
ILL
CNP102
8
BUS
CONTROL
6 3
IN
5 2
4 1
7
TH100