Read Sony CDX-R3300 / CDX-R3300S / CXS-R330GF Service Manual online
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20
CDX-R3300/R3300S
3-3. BLOCK DIAGRAM — MAIN SECTION —
1 ANT
7 B2
ELECTRONIC VOLUME
IC401
PJ601
(ANTENNA)
TUX601
(TUNER UNIT)
POWER AMP
IC100
SYSTEM CONTROL
IC801 (2/3)
CNP901
6 B1
R-CH (FRONT)
R-CH (REAR)
R-CH (REAR)
BATT
9 C2
8 C1
R-CH
4
3
3
10
VCC
11
TU VDD
15
E2P VDD
13
TU-SCL
14
TU-SDA
6
S-METER
7
TU MUTE
16
E2P SCL
17
E2P SDA
45 VSM
AU+8V
TU+5V
U COM+3.3V
U COM+3.3V
15 TU ATT
25 EEP SCK
24 EEP SIO
24 EEP SIO
L
R
CD-L
R-CH
17
18
18
OUTS1
OUTS2
R-CH
L
R
5
3
3
RR+
RR-
9
7
7
RF+
RF-
29
27
27
SW1
R-CH
SW2
BATT
30
37
37
REG1
REG2
31
33
33
REG3
REG4
34
REG5
TU+5V
BATT
25
24
24
OUTF1
OUTR1
29
MUTE
2 SDA
AU+8V
U-COM+3.3V
SERVO+3.3V
MECHA+6V
MECHA+6V
DISP+B
4 SCL
SDA
SCL
16 ACGND
22 STB
25 DIAG
25 DIAG
AU+8V
35 VP
15
7
10
12
11
16
1
9
2
4
3
5
6
30
31
31
SCL
SDA
SCL
SDA
SCL
SDA
SCL
SDA
33
IIC SCK
34
IIC SIO
6
VOL ATT
1
ATT
5
BEEP
31
STB
56
DIAG
53
BU IN
67
TEST IN
12 INRR(FL)
FL+
FL-
RL+
RL-
FR+
FR-
RR+
RR-
BATT
AMP-REM
ANT-REM
ACC
TEST
23
OUTF2
11 INRF(RL)
22
OUTR2
MUTE
Q405
MUTE
Q407
REAR
AUDIO OUT
PJ401
MUTE CONTROL
Q400,401
BATT
64
ACC IN
BATTERY CHECK
Q902,906,907
ACC CHECK
Q900
TU+5V REG
Q601
MUTE
Q404
D400
D912
F901
D701
CD
SECTION
A
SYS RST
62 SYS RST
SYS RST
DISPLAY
SECTION
C
CD
SECTION
B
58 UNI SI
UNI SI
A ATT
BU IN
59 UNI SO
UNI SO
60 UNI SCK
UNI SCK
61 BUS ON
BUS ON
• Signal Path
• R-CH is omitted due to same as L-CH.
: CD PLAY
: FM
: AM
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