Sony CDX-GT40U Service Manual page 33

• IC Block Diagrams
CDX-GT40U/GT40UW/GT42UE/GT44U/GT45U/GT47UE
IC301 TDF8556AJ/N5 (MAIN board (1/5))
TAB
1
OUT-FL– 3
FL
OUT-FL+ 5
OUT-RL– 7
RL
9
OUT-RL+
IN-RL 11
13
S-GND
PROTECTION/
DIAGNOSTIC
IN-RR 15
OUT-RR+ 17
RR
OUT-RR–
19
OUT-FR+ 21
FR
OUT-FR– 23
CHIP DETECT/
DIAGNOSTIC
DIAG 25
ANT-REM SWITCH
27
AMP-REM 29 SWITCH
SERVO+3.3V
31
MECHA+6V
33
VP 35
REFERENCE
VOLTAGE
BU+B 37
REGULATOR
2
2
I C BUS
4
6
8
10
12
14
16
VP
18
20
STANDBY/
22
MUTE
24
TEMPERATURE
PROTECTION
ENABLE
LOGIC
26
28
30
32
34
36
LOAD DUMP BACK-UP
PROTECTION SWITCH
Ver. 1.4
I2C_SDA
I2C_SCL
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
33