Read Sony CDX-GT220 / CDX-GT227EE / CXS-GT2713F Service Manual online
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17
CDX-GT220/GT227EE
CDX-GT220/GT227EE
5-1. BLOCK DIAGRAM — MAIN SECTION —
SECTION 5
DIAGRAMS
• Signal Path
• R-CH is omitted due to same as L-CH.
11
15
15
22
24
24
26
16
5
7
6
21
27
9
25
18
19
19
8
1,2
AU_LCH
AU_RCH
UNI_SO
UNI_SI
UNI_CLK
Z_MUTE
Z_MUTE
CD_ON
CDM_ON
SYS_RST
EJECT_OK
BUS_ON
BU+3.3V
A_ATT
BU_IN
D_+3.3V
A_+3.3V
A_+3.3V
BU_+3.3V
DR_+6V
R-CH
R-CH
R-CH
R-CH
R-CH
SERVO +3.3V
BU_+3.3V
MECHA +6V
MECHA +6V
R-CH
9 AUX-LCH
7 AUX-RCH
UNISO
59
UNISI
58
UNISCK
60
Z-MUTE
93
CD_ON
98
CDM_ON
99
RESET
77
SYSRST
88
BUSON
BU +3.3V
87
VOUT
1
VDD 2
D512
D510
: MW/LW
: CD PLAY
: FM
: AUX
1 ANT
4 TU-LCH
8 AUX GND
ELECTRONIC VOLUME
IC401
J1
(ANTENNA)
TU1
(TUNER UNIT)
CNP301
CD
MECHANISM
UNIT
(MG-101TC)
I2C BUS CONTROLLED
POWER AMP/MULTIPLE
VOLTAGE REGULATOR
IC750
SYSTEM CONTROL
IC501 (1/2)
RESET
IC602
CN601
3 TU-RCH
6 CD-LCH
5 CD-RCH
R-CH (FRONT)
R-CH (REAR)
VOLATT
R-CH (REAR)
VOLATT
BATT
R-CH
4
3
13
TU-SCL
14
TU-SDA
6
S-METER
5
QUALITY
7
TU-MUTE
16
E2P-SCL
17
E2P-SDA
39 VSM
38 QUALITY
10 VCC (+8.3V)
11 TU-VDD (TU+5V)
15 E2P-VDD
15 E2P-VDD
AUDIO +8.3V
TU+5V
B.U +3.3V
12 TU ATT
25 EEP_CKO
24 EEP_SIO
24 EEP_SIO
56 DAVN
L-CH
R-CH
J901
AUX
5
3
3
OUT-FL+
OUT-FL–
9
7
7
OUT-RL+
OUT-RL–
27
R-CH
ANT-REM
35
VP
20
VP1
6
VP2
30
AUDIO+8.3V
31
33
33
SERVO+3.3V
MECHA+6V
34
PANEL+B
TU+5V
26
24
24
OUT-FR
OUT-RR
R-CH
R-CH
21
22
22
SUBOUT L
SUBOUT R
28
MUTE
4 SCL
AUDIO +8.3V
SERVO+3.3V
MECHA+6V
MECHA+6V
PANEL+B
2 SDA
16 BEEP
22 STB
25 DIAG
25 DIAG
AUDIO +8.3V
7
10
12
11
16
1
9
2
4
3
6
29
30
30
SCL
SDA
I2C-SCL
I2C-SDA
I2C-SDA
I2C-SCL
I2C-SDA
I2C-SCL
I2C-SDA
I2C-SCL
I2C-SDA
I2C-SDA
VSM
QUALITY
8
TU–ATTIN
9
RDS–OUT
53 QUALITY
30 RDS ON
TUATT
EEP-SCL
EEP-SDA
33
I2C_CKO
34
I2C_SIO
9
VOL ATT
86
ATT
5
BEEP
26
AMPSTB
8
DIAG
54
BU IN
12 IN-FL
FL+
FL–
L
J330
R
RL+
RL–
FR+
FR–
RR+
RR–
ANT-REM
BATT
ACC
25
OUT-FL
11 IN-RL
23
OUT-RL
MUTE
Q441
MUTE
Q481
MUTE
CONTROL SWITCH
Q478,479
BATT
72
ACC_IN
BATTERY LEVEL CHECK
Q580–582
ACCESSORY CHECK
Q631
TU+5V REG
Q1,D1
MUTE
Q461
29
AMP-REM
5
AMP-REM
AUDIO
OUT
REAR
D479
D511
D580
D581
FU601
13
TEL–ATT
74
TELATT
TELEPHONE
ATTENATION CHECK
Q651
37
B.UP+B
BU +3.3V
B.U+3.3V
BATT
RDS DEMODULATOR
IC51
11
SCL
12
SDA
15
INTN
1
VDDA
7
VDDB
BU+3.3V
16 MPX
SDA
SCL
RDS+3.3V
SWITCH
Q51
X51
8.664MHz
10
9 XTI
XTO
NOISE MASK
SWITCH
Q22
13 NSMASK
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