CDX-GT50UMS/GT450U/GT457UE/GT500U/GT500US/GT505U
CDX-GT50UMS/GT450U/GT457UE/GT500U/GT500US/GT505U
2424
• IC Block Diagrams
IC301 TDF8556AJ/N3 (MAIN Board (1/3))
(Except AEP, UK model)
IC301 TDF8556AJ/N3/M5 (MAIN Board (1/3))
(AEP, UK model)
IC402 TK11
133CSCL-G (MAIN Board (1/3))
IC001 TEF6617T/V1/S470,518 (MAIN Board (3/3)) (Except AEP, UK model)
IC001 TEF6617T/V1/S470/M5,518 (MAIN Board (3/3)) (AEP, UK model)
IC601 BD9070FP-E2 (MAIN Board (2/3))
MUTE
MUTE
ENABLE
LOGIC
STANDBY/
MUTE
CHIP DETECT/
DIAGNOSTIC
PROTECTION/
DIAGNOSTIC
SWITCH
REGULATOR
SWITCH
REFERENCE
VOLTAGE
LOAD DUMP
PROTECTION
TEMPERATURE
PROTECTION
BACK-UP
SWITCH
REGULATOR
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
31
33
35
37
2
4
6
8
10
12
14
16
18
20
22
24
26
28
30
32
34
36
TAB
OUT-FL–
OUT-FL+
OUT-RL–
OUT-RL+
IN-RL
S-GND
IN-RR
OUT-RR+
OUT-RR–
OUT-FR+
OUT-FR–
DIAG
ANT-REM
AMP-REM
SERVO+3.3V
MECHA+6V
VP
BU+B
I2C_SIO
I2C_SCK
VP2
P-GND1
SVR
IN-FL
IN-FR
BEEP
P-GND3
VP1
STB
P-GND4
RST
CRES
AUDIO+B
(8.5V)
GND
PANEL+B
CBU
FL
RL
RR
VP
FR
I
2
C BUS
1 2 3
5 4
CONT
GND
NOISE
VIN
VOUT
OVERHEAT &
OVERCURRENT
PROTECTION
BAND GAP
REFERENCE
CONTROL
CIRCUIT
PVIN24
16
NCO
23
INV
18
VDD
15
NCO14
OVP
VDD
17
FLG 10
NCO 11
HSDSW 12
HSDSW
13
NCO
20
TAB
27
FB
19
SW22
SW
21
VIN
2
VREGB 1
HSDCTL 9
SYN/EN 8
RT
7
GND 6
TAB
26
PGND
5
NCO
4
NCO
3
CONTROL
LOGIC
DRV
LOGIC
UVLO,
TSD,
HSD UVLO
HSD UVLO
UVLO, TSD,
OVP, OCP, SCP
CHARGE
PUMP
SOFT
START
OCD
SLOPE
OSC
VREF
SYNC
VREG UVLO
TSD
+
–
–
+
+
–
+
HSD
UVLO
SCP
–
+
SCP
OVP
OCP
+
–
OVP
R
S
PWM
ERR
PVIN25
–
+
OCP
UVLO
TSD
DRV
AMRFIN
1
AMRFDEC
2
FMIN2
3
FMIN1
4
LOUT
8
ROUT
9
MPXOUT
13
RSSI
14
XTAL2
15
XTAL1
16
GNDAUD
10
GNDRF
5
VCC2
6
AMRFAGC
7
AMIFAGC2
11
MPXIN
12
AMSELOUT2
32
AMSELOUT1
31
AMIFAGC1
30
AMSELIN2
29
PLL
25
VCODEC
24
VREF
20
SDA
19
SCL
18
GNDD
17
GND
23
AMSELIN1
28
DAV N
27
PLLREF
26
VCC1
22
VREGSUP
21
AM
TUNER
FM
TUNER
OUTPUT
PLL
TUNING
SYSTEM
I2C BUS
POWER
SUPPLY
STEREO DECODER
HIGH CUT
SOFT MUTE
NOISE BLANKER
SIGNAL
IMPROVEMENT
CONTROL
BANDWIDTH
CONTROL
RDS
DEMODULATOR
AND
DECODER
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