Block Diagram -Main Section - Sony CDX-R3350 Service Manual

CDX-R3350/R3350C
Q Q
3 7 6 3 1 5 1 5 0
3-2. BLOCK DIAGRAM — MAIN SECTION —
TU1
(TUNER UNIT)
TUNER LCH 4
TUNER RCH 3
J1
1 ANT
(ANTENNA)
VCC 10
TU VDD 11
E2P VDD 15
TU-SCL 13
TU-SDA 14
S-METER 6
7
TU MUTE
E2P SCL 16
T E
L 1 3 9 4 2 2 9 6 5 1 3
E2P SDA 17
MUTE CONDITION 8
QUALITY 5
RDS 9
8.664MHz
• R-CH is omitted due to same as L-CH.
• Signal Path
: CD PLAY
: FM
: MW/LW
: BUS AUDIO
w w w
CDX-R3350/R3350C
ELECTRONIC VOLUME
IC401
BUS LCH 5
BUS RCH 3
CD
A
CD-L 9 CD LCH
SECTION
OUT SUB L 17
(Page 13) R-CH 8 CD RCH
OUT SUB R 18
OUT FL 23
OUT FR 25
7 TUNER LCH
6 TUNER RCH
OUT RR
24
OUT RL 22
AUDIO+8.3V MUTE 29
TUNER+5V
SCL 30
BACKUP+3.3V
SDA 31
SCL
SDA
SYSTEM CONTROL
IC501 (2/3)
I2C CKO 33
I2C SIO 34
39 VSM
VOL ATT 9
12 TU ATT
ATT 86
25 EEP CKO
BEEP
5
24 EEP SIO
AMPSTB 26
53 TU ATT IN
DIAG 8
38 QUALITY
Q22
ACC IN
72
13 NS MASK
TEL ATT 74
RDS DEMODULATOR
TEST IN 73
IC51
SCL
16 MPX SCL 11
SDA
SDA 12
10 XTO
X51
15 56 DAVN
9 XTI INTN
BU IN 54
UNI SI
58
D512(2/2)
UNI SO 59
RDS B+
UNI SCK 60
RDS BACKUP
SWITCH
+3.3V +3.3V BUS ON
87
Q51
SYS RST 88
30 RDS ON
SYS RST
LINK OFF
BUS ON
CD UNI SCK
B
SECTION
UNI SO
(Page 13)
UNI SI
ATT
BU CHK
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R-CH
R-CH
R-CH
MUTE MUTE
Q481 Q441
R-CH
MUTE
Q4
SCL
SDA
D479
MUTE CONTROL
BATT
Q478,479
SDA
SCL
SCL
SDA
D511
Q Q
3 7 6
BUS INTERFACE
IC580
R3350
BATT
3
10 B/U-C
6
DATA I/O
8 DATA OUT
CLK 4
9 DATA IN
11 CLK IN
BUS ON 1
12 BUSON
13 RST
RST 2
D510(2/2)
C
RESET
TUNER+5V
u 1 6 3
14 14
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2 4
8 9 9
R-CH
R-CH
R-CH
I2C BUS CONTROLLED POWER AMP/
MULTIPLE VOLTAGE REGULATOR
IC750
CN601
1
12 INFL OUT FL+
5
9
OUT FL– 3
11 INRL
2
OUT RL+ 9
10
OUT RL– 7
4
12
R-CH 3
11
5
AMP REM 29
6
ANT REM 27
FU601
16
2 SDA
VP 35
4 SCL VP1 20
BATT
VP2
6
REG1 30 AUDIO+8.3V
REG2 37
BACKUP+5V
3 16 BEEP 1 5 1 5 0 8 9
REG3 31
SERVO+3.3V
22 STB REG4
33 MECHA+6V
25 DIAG
REG5 34 PANEL+10V
7
ACCESSORY CHECK
Q631
13
TEL ATTENATION CHECK
Q651
15
R3350
BATT DET
Q581,582
D580,581
BATT DET
BATT
6
Q580
5
4
BUS ON SWITCH
Q586,587
TH580
DISPLAY
(Page 15) BATT
SECTION
TU+5V
REG AUDIO+8.3V BU+3.3V REG
BACKUP+3.3V
IC681
Q1
R3350C
m
c o
.
2
8 9 9
R3350C
L
BUS
AUDIO IN
R AUX IN
L
REAR
PJ330
AUDIO OUT
R
L
FRONT
AUDIO OUT
R
R3350C
FL+
FL–
RL+
RL–
FR+
FR–
RR+
RR–
AMP-REM
ANT-REM
BATT
2 4 9 8 2 9 9
ACC
ATT
TEST
CN580
8
BUS
CONTROL IN
3
2
1
7
R3350C
BACKUP+5V