Read Sony CDX-S22 / CDX-S22S Service Manual online
16
16
CDX-S22/S22S
CDX-S22/S22S
3-2. BLOCK DIAGRAM — MAIN SECTION —
1 ANT
7 TU-LCH
ELECTRONIC VOLUME
IC401
J1
(ANTENNA)
TU1
(TUNER UNIT)
POWER AMP,
MULTI REGULATOR
IC750
SYSTEM CONTROL
IC501 (2/3)
RDS RECEIVER
IC51
RESET
IC602
S702
RESET
CN601
6 TU-RCH
R-CH
BATT
FL
9 CD-LCH
8 CD-RCH
4
3
3
10
VCC8.3V
11
VDD5V
15
E2PVDD
13
TU-SCL
14
TU-SDA
6
S-METER
7
TU_MUTE
16
E2PSCL
17
E2PSDA
5
QUALITY
9
RDS
39 VSM
AU+8.3V
R-CH
TU+5V
BU+3.3V
BU+3.3V
12 TUATT
25 EEP_CKO
24 EEP_SIO
24 EEP_SIO
38 QUALITY
8
MUTE_CON
AEP,UK MODEL
53 TU_ATTIN
77 RESET
L
R
CD-L
R-CH
R-CH
5
3
3
OUT-FL+
OUT-FL–
9
7
7
OUT-RL+
OUT-RL–
29
27
27
AMP-REM
R-CH
ANT-REM
35
VP
20
VP1
6
VP2
BATT
30
37
37
AUDIO8.3V
B.UP+B
31
33
33
SERVO3.3V
MECHA6V
34
PANEL+B
TU+5V
24
OUT-RR
29
MUTE
2 SDA
AU+8.3V
BU3.3V
SERVO+3.3V
MECHA+6V
MECHA+6V
DISP+B
4 SCL
SDA
SCL
16 BEEP
22 STB
25 DIAG
25 DIAG
AU+8.3V
15
13
7
10
12
11
16
1
9
2
4
3
5
6
30
31
31
SCL
SDA
SCL
SDA
SCL
SDA
33
I2C_CKO
34
I2C_SIO
9
VOL ATT
5
BEEP
26
AMPSTB
8
DIAG
54
BUIN
SYS RST
BUS ON
UNI CLK
UNI SO
UNI SI
B/U CHECK
A ATT
73
TESTIN
ATT
12 IN_FL
IN_RL
FL+
FL-
RL+
RL-
FR+
FR-
RR+
RR-
AMP-REM
ANT-REM
ACC
ATT
AEP,UK MODEL
TEST
11
22
OUT-RL
MUTE
Q481
MUTE DRIVE
Q478,479
58
UNISI
59
UNISO
60
UNISCK
87
BUSON
88
SYSRST
72
ACC_IN
ACC CHECK
Q631
+5V REG
Q1
BATT
BATTERY CHECK
Q581,582
OVER
VOLTAGE
DETECT
Q580
MUTE
Q461
74
TELATT
SCL
SDA
D479
FU601
R-CH
R-CH
17
18
18
OUT-SUB-L
OUT-SUB-R
23
OUT-FL
25
OUT-FR
R-CH
L
R
J330
AUDIO
OUT
REAR
D510
D512
D511
D580
BATT
D581
CD
SECTION
A
CD
SECTION
B
BATT
NS
MASK
Q22
B+ SWITCH
Q51
BU+3.3V
VDD
13 NSMASK
30 RDSON
56 DAVN
16 MPX
15
INTN
11
SCL
12
SDA
1
OUT
BU+3.3V
2 IN
SCL
SDA
9
10
X51
8.66MHz
XT1
XT0
86
MUTE
Q441
TEL ATT
Q651
• Signal Path
• R-CH is omitted due to same as L-CH.
: CD
: FM
: AM or MW
(Page 15)
(Page 15)
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