Sony CDX-S2270EE, Service Manual

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14 14
CDX-S2270EE
CDX-S2270EE
1 ANT 7 TU-LCH
ELECTRONIC VOLUME
IC401
J1
(ANTENNA)
TU1
(TUNER UNIT)
POWER AMP,
POWER SUPPLY
IC750
SYSTEM CONTROL
IC501 (2/3)
CN601
6 TU-RCH
R-CH (FRONT)
R-CH (REAR)
BATT
9 CD LCH
8 CD RCH
R-CH
4
3
10 VCC
11 TU-VDD(TU5V)
13 TU-SCL
14 TU-SDA
6 S-METER
7 TU-MUTE
16 E2P-SCL
17 E2P-SDA
39 VSM
AUDIO+8.3V
15 E2P-VDD
BU+3.3V
12 TUATT
25 EEP CKO
24 EEP SIO
L-CH
R-CH
CD-L
R-CH
17
18 OUT SUB-L
OUT SUB-R
R-CH
L
R
5
3
OUT-FL+
OUT-FL-
9
7 OUT-RL+
OUT-RL-
29
27 AMP-REM
R-CH
ANT-REM
BATT
30
37 AUDIO8.3V
B.UP+B
31
33 SERVO3.3V
MECHA6V
34 PANEL+B
BATT
25
24 OUT-FR
OUT-RR
29 MUTE
2 SDA
AUDIO+8.3V
BU+3.3V
SERVO+3.3V
MECHA+6V
PANEL+B
4 SCL
SDA
SCL
16 BEEP
22 STB
25 DIAG
35 VP
15
7
10
12
11
16
1
9
2
4
3
5
6
30
31
SCL
SDA
SCL
SDA
SCL
SDA
SCL
SDA
33 I2C CKO
34 I2C SIO
9 VOL ATT
86 ATT
5 BEEP
26 AMPSTB
8 DIAG
54 BU IN
73
UNI SI
58
UNI SO
59
UNI SCK
60
BUS ON
87
UNI SI
UNI SO
UNI CLK
BUS ON
B/U CHECK
ATT
TEST IN
12 IN-FL FL+
FL-
RL+
RL-
FR+
FR-
RR+
RR-
AMPREM
ANTREM
ACC
TEST
23 OUT-FL
11 IN-RL 22 OUT-RL
MUTE
Q441
MUTE
Q481
AUDIO OUT
J330
MUTE DRIVE
Q478,479
BATT
72
74
ACC_IN
TEL ATT
BATTERY CHECK
Q580-582
TUNER +5V REG.
Q1
ACCESSORY CHECK
Q631
MUTE
Q461
13
TEL-MUTE
D479
D511
D580
D581
D512
F901
CD
SECTION
A
CD
SECTION
B
ATTENUATION
Q651
• Signal Path
• R-CH is omitted due to same as L-CH.
: CD PLAY
: FM
: MW/LW
3-2. BLOCK DIAGRAM — MAIN SECTION —
(Page 13)
(Page 13)