CDX-GT49UM/GT490U/GT490US/GT494U
CDX-GT49UM/GT490U/GT490US/GT494U
15
15
4-1.
BLOCK DIAGRAM – MAIN Section –
SECTION 4
DIAGRAMS
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
A_ATT
BU_CHECK
AUDIO_8.5V
A_3.3V
BU_3.3V
DR_6V
R-CH
R-CH
R-CH
R-CH
R-CH
AUDIO +8.5V
BU_+3.3V
SERVO+3.3V
R-CH
7
AUX_LCH
9
AUX_RCH
BU+3.3V
MC_RX
59
MC_TX
60
WAKE_UP
58
Z_MUTE
62
CD_ON
27
CDM_ON
28
RESET
54
SYSRST
26
VBUS_ON
BU +3.3V
70
CLK_IN
61
MD2
51
MD0
53
FLASH_EN1
78
VOUT
1
VIN
2
15
D701
4
FMIN1
3
FMIN2
3
TU_LCH
8
AUX_GND
ELECTRONIC VOLUME
IC302
J1
(ANTENNA)
PHASE LOCKED LOOP
(PLL)
IC001
L6
FM MIX
L2
CN701
CD
MECHANISM
UNIT
(MG-101Y)
(1/2)
I2C BUS CONTROLLED
POWER AMP/MULTIPLE
VOLTAGE REGULATOR
IC301
SYSTEM CONTROL
IC401 (1/2)
RESET
IC403
CN802
4
TU_RCH
5
CD_LCH
6
CD_RCH
R-CH (FRONT)
R-CH (REAR)
BATT
R-CH
8
9
18
SCL
19
SDA
14
RSSI
37
VSM
16
XTAL1
15
XTAL2
LOUT
ROUT
J901
AUX
X1
4MHz
S401
RESET
5
3
OUT-FL+
OUT-FL–
9
7
OUT-RL+
OUT-RL–
27
R-CH
ANT-REM
35
VP
BATT
20
VP1
6
VP2
30
AUDIO+B
31
33
SERVO+3.3V
MECHA+6V
34
PANEL+B
34
32
OUT_FRCH
27
SA_CLK
28
SA_DA
29
SA_OUT
OUT_RRCH
R-CH
31
R/S_OUT_LCH
13
ZAPPIN1
16
ZAPPIN2
4
SCL
AUDIO +8.5V
SERVO+3.3V
MECHA+6V
PANEL+B
2
SDA
16
BEEP
22
STB
25
DIAG
7
10
12
11
16
1
9
2
4
3
6
37
38
SCL
SDA
I2C_SCK
I2C_SIO
I2C_SCK
I2C_SIO
I2C_SCK
I2C_SIO
I2C_SCK
I2C_SIO
23
I2C_SCK
72
SA_CLK
71
SA_OUT
38
SA_IN
22
I2C_SIO
31
ATT
47
EXATT_XEN
98
ZAPPIN
97
BEEP
68
AMP_STB
69
DIAG
83
BU_CHECK
12
IN-FL
FL+
FL–
L
R
RL+
RL–
FR+
FR–
RR+
RR–
ANT-REM
BATT
ACC
35
OUT_FLCH
11
IN-RL
33
OUT_RLCH
MUTE
Q102
MUTE DRIVE
Q303,304
29
ACC_IN
ACC DETECT
Q805
+3.3V REG
IC402
MUTE
Q103
29
AMP-REM
5
AMP-REM
1
AMRFIN
REAR/SUB
D306
D308
D309
FU601
37
BU+B
B.U+5V
FRONT
R-CH
L
J302
R
-1
-2
-3
-4
AUDIO
OUT
MUTE
Q104
BU+3.3V
BATT
5
4
BACK-UP CHECK
Q802,807,808,
D806,807
MECHA +6V
3.3V
6
UART_CLK
3
FLASH_W
7
CLK_IN
2
RESET
Ucom-TX(CD-RX)
4
1
5
Ucom-RX(CD-TX)
CN401
FLASH
PROGRAMMING
BU +3.3V
B.U +5V
R-CH (REAR/SUB)
30
R/S_OUT_RCH
CD MUTE
Q305
FLASH
PROGRAMMING
BUFFER
Q401,402,701
S
LJQDO
P
DWK
R-CH
LV
om
LWWHG
GXH
W
o
VD
m
H
DV
L-CH.
: AM
: CD
: FM
: AUX