Block Diagram -Main Section - Sony CDX-GT440U Service Manual

4-1. BLOCK DIAGRAM – MAIN Section –
R-CH
J901
AUX
PHASE LOCKED LOOP
L6
FM MIX
J1
4 FMIN1
(ANTENNA)
3 FMIN2
L2
1 AMRFIN
16 XTAL1
X1
4MHz
15 XTAL2
CN701
AU_LCH
20
AU_RCH
22
TXD(MC_BUS)
11
RXD(MC_BUS)
12
28 WAKE_UP
Z-MUTE
8
CD_ON
17
18
CDM_ON
3
SYS_RST
CD
25 EJECT_OK
MECHANISM
UNIT 7
VBUS_ON
(MG-101Y)
(1/2)
19 A_ATT
27 BU_CHECK
13 AUDIO_8.5V
24
A_3.3V
4 BU_3.3V
15 DR_6V
5 Ucom-RX(CD-TX)
Ucom-TX(CD-RX)
4
RESET
1
CN401
CLK_IN
2
FLASH
PROGRAMMING
7 FLASH_W
3 UART_CLK
3.3V
6
CDX-GT440U/GT444U/GT447UE
7 AUX_LCH
R-CH 9 AUX_RCH
8 AUX_GND
(PLL)
IC001
LOUT 8 3 TU_LCH
ROUT R-CH 4 TU_RCH
9 R-CH
5 CD_LCH
6 CD_RCH
R-CH
I2C_SCK
SCL 18
I2C_SIO
SDA 19
RSSI 14 37 VSM
R-CH
59
60
58
62
27
28
D701
54
BU+3.3V
26
70
61
51
53
78
AUDIO +8.5V
SERVO+3.3V
BU_+3.3V
1
MECHA +6V
S401
RESET
FLASH
PROGRAMMING
BUFFER
Q401,402,701
BU +3.3V
ELECTRONIC VOLUME
IC302
R/S_OUT_LCH 31
R/S_OUT_RCH 30 R-CH (REAR/SUB)
ZAPPIN1 13
MUTE
ZAPPIN2 16
Q102
OUT_FLCH
35
OUT_RLCH 33
OUT_FRCH R-CH (FRONT)
34
R-CH (REAR)
OUT_RRCH 32
I2C_SCK
SCL 37
I2C_SIO
SDA 38
SA_CLK 27
SA_DA
28
SA_OUT 29 MUTE DRIVE
Q303,304
SYSTEM CONTROL
IC401 (1/2)
SA_IN 38
D309
SA_OUT 71
SA_CLK
72
I2C_SCK
I2C_SCK 23
I2C_SIO
I2C_SIO 22
ZAPPIN 98
ATT 31
CD MUTE
EXATT_XEN 47
Q305
BEEP 97
AMP_STB 68
DIAG 69
MC_RX
MC_TX
WAKE_UP
Z_MUTE
TEL_ATT
30
CD_ON
CDM_ON
RESET
ACC_IN 29
SYS_RST
VBUS_ON
BU_CHECK 83
CLK_IN
MD2
MD0
FLASH_EN1
RESET
IC403
VIN 2
VOUT BU +3.3V
BU+3.3V
4
15 15
I2C BUS CONTROLLED
POWER AMP/MULTIPLE
VOLTAGE REGULATOR
IC301
12 IN-FL
11 IN-RL
OUT-FL+ 5
OUT-FL– 3
MUTE MUTE
OUT-RL+ 9
Q104 Q103
OUT-RL– 7
R-CH
D306
BATT
I2C_SCK
4 SCL
I2C_SIO
AMP-REM 29
2 SDA
ANT-REM 27
VP 35
VP1 20
VP2 6
D308
BU+B 37
AUDIO+B
30
SERVO+3.3V 31
MECHA+6V 33
16 BEEP
PANEL+B 34
22 STB
25 DIAG
TEL-ATT DETECT
Q806
ACC DETECT
Q805
BACK-UP CHECK
Q802,807,808,
BATT
D806,807
R-CH om
S P
: CD
: FM
+3.3V REG
5 B.U +5V
IC402
: AM or MW
: AUX
A r
RU: R
CDX-GT440U/GT444U/GT447UE
AEP, UK, RU MODEL
J303
-1
L
AUDIO
REAR/SUB
-2
OUT
R-CH R
US MODEL
-1
L
-2 REAR/SUB
J302
R-CH R
AUDIO
-3
OUT
L
-4 FRONT
R-CH
R
CN802
1
FL+
9
FL–
2
RL+
10
RL–
4
FR+
12
FR–
3
R-CH
RR+
11
RR–
5
AMP-REM
6
ANT-REM
BATT
FU601
16
BATT
B.U+5V
AUDIO +8.5V
SERVO+3.3V
MECHA+6V
PANEL+B
AEP, UK, RU MODEL
13
TEL-ATT
7
ACC
o m L-CH.
o
mo