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CDX-GT730UI/GT737UI/GT780UI
CDX-GT730UI/GT737UI/GT780UI
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21
4-1. BLOCK DIAGRAM – MAIN Section –
20
22
11
12
28
8
17
18
3
25
7
19
27
13
24
4
AU_LCH
AU_RCH
TXD(MC-BUS)
RXD(MC-BUS)
WAKE UP
Z_MUTE
CD_ON
CDM_ON
SYS_RST
EJECT_OK
VBUS ON
AU ATT
BU CHECK
MECHA 8.5V
A+3.3V
BU_+3.3V
DR_+6V
R-CH
R-CH
R-CH
R-CH
R-CH
R-CH
AUDIO +8.5V
BU_+3.3V
SERVO+3.3V
R-CH
R-CH
BU +3.3V
15
D560
ELECTRONIC VOLUME
IC401
PRE AMP
IC462
SUB OUT AMP
IC481
J1
(ANTENNA)
PHASE LOCKED LOOP
(PLL)
IC1
L6
FM MIX
L2
CN200
CD
MECHANISM
UNIT
(MG-101Z)
(1/2)
I2C BUS CONTROLLED
POWER AMP/MULTIPLE
VOLTAGE REGULATOR
IC300
SYSTEM CONTROL
IC501 (1/2)
RESET
IC682
CN701
R-CH
BATT
R-CH
I2C-SCK
I2C-SIO
J901
L
R
-1
-2
AUX
J400 (1/2)
X1
4MHz
AEP,UK,IT,RU
MODEL
BUS
AUDIO IN
S680
RESET
R-CH
BATT
R-CH
AUDIO +8.5V
SERVO+3.3V
MECHA+6V
PANEL+B
7
10
12
11
16
1
9
2
4
3
6
I2C-SCK
I2C-SIO
I2C-SCK
I2C-SIO
I2C-SCK
I2C-SIO
I2C-SCK
I2C-SIO
FL+
FL–
L
R
RL+
RL–
FR+
FR–
RR+
RR–
ANT-REM
BATT
ACC
MUTE
Q480
MUTE DRIVE
Q491,492
13 RST
12 BUS IN
11 CLK IN
10 BU CHECK
ACC DETECT
Q704
MUTE
Q450
5
AMP-REM
14
ILL
ILL DETECT
Q702
13
TEL-ATT
TEL-ATT DETECT
Q703
REAR
BUS INTERFACE
IC601
D491
D494
D493
FU601
B.U+5V
FRONT
R-CH
L
J400 (2/2)
R
-3
-4
-5
-6
AUDIO
OUT
MUTE
Q420
BU+3.3V
BATT
5
6
8
4
2
3
1
BATT
CN600
(BUS CONTROL IN)
TH600
7
BATTERY CHECK
Q701,D702,703
BU+3.3V
X50
8.664MHz
RDS DEMODULATOR
IC50
MECHA +6V
3.3V
6
SYNC/NONSYNC
3
FLASH+W
7
CLK
2
RESET
RX
4
1
5
TX
CN670
FLASH
PROGRAMMING
BU +3.3V
B.U +5V
RDS +3.3V
POWER
CONTROL
Q50,51
CD MUTE
Q401
STB
SUB OUT
(MONO)
FLASH+W
FLASH
PROGRAMMING
BUFFER
Q501,502
• Signal Path
• R-CH is omitted due to same as L-CH.
• Abbreviation
: AM or MW
: CD
: FM
: BUS AUDIO
: AUX
IT : Italian model
RU : Russian model