Sony CDX-GT55UIW Service Manual page 24

CDX-GT55UIW/GT550UI/GT600UI
• 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)
TAB 1
OUT-FL– 3
I 2 C BUS
FL
OUT-FL+ 5
OUT-RL– 7
RL
OUT-RL+ 9
IN-RL 11
S-GND 13
PROTECTION/
DIAGNOSTIC
IN-RR 15
VP
OUT-RR+ 17
RR
OUT-RR– 19
OUT-FR+ 21
STANDBY/
FR
MUTE
OUT-FR– 23
CHIP DETECT/
DIAGNOSTIC
TEMPERATURE
PROTECTION
DIAG 25
ENABLE
LOGIC
ANT-REM 27 SWITCH
AMP-REM 29 SWITCH
SERVO+3.3V 31
MECHA+6V
33
VP 35
REFERENCE
VOLTAGE
LOAD DUMP BACK-UP
BU+B 37
REGULATOR PROTECTION SWITCH
CDX-GT55UIW/GT550UI/GT600UI
IC402 TK11133CSCL-G (MAIN Board (1/3))
5
2 I2C_SIO
4 I2C_SCK
CONTROL
CIRCUIT
6
VP2
BAND GAP
8 P-GND1
REFERENCE
10 SVR
12 IN-FL
1
14
IN-FR
16
BEEP
18 P-GND3
20 VP1
22 STB
IC801 BA8271F-E2 (MAIN Board (1/3))
24 P-GND4
BUS ON
BUS_ON 1
SWITCH
26 RST
RESET
RST 2
SWITCH
BATTERY
28 CRES
BATT 3
SWITCH
CLK 4
AUDIO+B
30
VREF 5
(8.5V)
DATA_I/O 6
32 GND
34 PANEL+B
GND 7
36 CBU
4
OVERHEAT &
OVERCURRENT
PROTECTION
2 3
(US, Canadian model)
14 VCC
13 RST
12 BUS_IN
11 CLK_IN
10 BU_CHECK
9 DATA_IN
AMRFDEC 2
8 DATA_OUT
AMRFAGC 7
AMIFAGC2 11
24 24
IC601 BD9070FP-E2 (MAIN Board (2/3))
PWM
VREGB 1 +
R
–
VIN 2 ERR
DRV
NCO 3 DRV
LOGIC SLOPE
NCO 4
S
PGND 5
GND 6
UVLO, TSD,
TAB 26
OVP, OCP, SCP
RT 7 OSC
SYNC
VREF
SYN/EN 8 VREG UVLO UVLO
TSD TSD
CHARGE
HSDCTL 9
PUMP
CONTROL
LOGIC
UVLO,
TSD, OCD
HSD UVLO
FLG 10
NCO 11
HSDSW 12
HSDSW 13
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)
AMRFIN 1
AM
TUNER
FMIN2 3
FM
TUNER
FMIN1 4
GNDRF 5
VCC2 6
RDS
DEMODULATOR
AND
DECODER
LOUT 8
STEREO DECODER
HIGH CUT
ROUT 9 OUTPUT
SOFT MUTE
NOISE BLANKER
GNDAUD 10
MPXIN 12 SIGNAL
IMPROVEMENT
CONTROL
MPXOUT 13
BANDWIDTH
RSSI 14 CONTROL
XTAL2 15
XTAL1 16
25 PVIN
24 PVIN
OCP 23 NCO
+
OCP
– 22 SW
21 SW
20 NCO
27 TAB
19 FB
+
+
– 18 INV
+
SCP
–
SCP
SOFT OVP
START – 17 OVP
OVP
+
16 VDD
15 VDD
HSD
14 NCO
UVLO
–
HSD UVLO
+
32 AMSELOUT2
31 AMSELOUT1
30 AMIFAGC1
29 AMSELIN2
28 AMSELIN1
27 DAV N
26 PLLREF
PLL
TUNING
25 PLL
SYSTEM
24 VCODEC
23 GND
22 VCC1
POWER
SUPPLY
21 VREGSUP
20 VREF
19 SDA
I2C BUS
18 SCL
17 GNDD