Sony CDX-GT440U Service Manual page 23

• IC Block Diagrams
IC301 TDA8588AJ/N2/R1 (CDX-GT440U: US/GT447UE) (MAIN Board (1/3))
IC301 TDA8588AJ/N2/R1/M5 (CDX-GT440U: AEP, UK, Russian/GT444U) (MAIN Board (1/3))
TAB
1
OUT-FL– 3
OUT-FL+ 5
OUT-RL– 7
OUT-RL+ 9
IN-RL 11
13
S-GND
PROTECTION/
DIAGNOSTIC
IN-RR 15
OUT-RR+ 17
OUT-RR– 19
OUT-FR+ 21
OUT-FR–
23
CHIP DETECT/
DIAGNOSTIC
BATTERY
DIAG 25
DETECTION
ANT-REM SWITCH
27
AMP-REM 29 SWITCH
SERVO-3.3V
31
MECH-6V
33
VP 35
REFERENCE
VOLTAGE
BU+B 37
REGULATOR
2
I C BUS
FL
RL
VP
RR
STANDBY/
FR
MUTE
TEMPERATURE
ENABLE
PROTECTION
LOGIC
LOADDUMP BACK-UP
PROTECTION SWITCH
CDX-GT440U/GT444U/GT447UE
2 I2C_SIO
4
I2C_SCK
6 VP2
8 P-GND1
10
SVR
12 IN-FL
14
IN-FR
16 BEEP
18
P-GND3
20
VP1
22 STB
24 P-GND4
26 RST
28 CRES
AUDIO+B
30
(8.5V)
32
GND
34 PANEL+B
36 CBU
23