Sony CDX-GT48UM Service Manual page 24

CDX-GT48UM/GT480U/GT480US/GT484US
Q Q
3 7 6 3 1 5 1 5 0
• IC Block Diagrams
IC301 TDA8588AJ/N2/R1 (MAIN Board (1/3))
TAB 1
OUT-FL– 3
OUT-FL+ 5
OUT-RL– 7
OUT-RL+ 9
IN-RL 11
S-GND 13
PROTECTION/
DIAGNOSTIC
IN-RR 15
OUT-RR+ 17
OUT-RR– 19
OUT-FR+ 21
OUT-FR– 23
CHIP DETECT/
DIAGNOSTIC
BATTERY
T E DIAG 25
L 1 3 9 4 2 2 9 6 5 1 3
DETECTION
SWITCH
ANT-REM 27
AMP-REM 29 SWITCH
SERVO-3.3V 31
MECH-6V 33
VP 35
REFERENCE
VOLTAGE
BU+B 37 REGULATOR
w w w
CDX-GT48UM/GT480U/GT480US/GT484US
2 I2C_SIO
2
I C BUS
4
I2C_SCK
FL
6
VP2
RL
8 P-GND1
10 SVR
12 IN-FL
14 IN-FR
16 BEEP
VP
RR 18 P-GND3
20 VP1
STANDBY/
FR 22 STB
MUTE
24 P-GND4
TEMPERATURE
PROTECTION ENABLE
LOGIC
26 RST
28 CRES
AUDIO+B
30
(8.5V)
32 GND
34 PANEL+B
36
CBU
LOADDUMP BACK-UP
PROTECTION SWITCH
x a o
. i
http://www.xiaoyu163.com
AMRFIN 1
AMRFDEC 2
FMIN2 3
FMIN1 4
GNDRF 5
VCC2 6
AMRFAGC 7
LOUT 8
ROUT 9
GNDAUD 10
AMIFAGC2 11
MPXIN 12
MPXOUT 13
RSSI 14
XTAL2 15
XTAL1 16
Q Q
3 7 6
u 1 6 3
y
24 24
2 4
8 9 9
IC001 TEF6607T/V4/S470,518 (MAIN Board (2/3))
AM
TUNER
FM
TUNER
STEREO DECODER SYSTEM
HIGH CUT
OUTPUT
SOFT MUTE
NOISE BLANKER
SIGNAL
IMPROVEMENT
CONTROL
BANDWIDTH
CONTROL
I2C BUS
3 1 5 1 5 0 8 9
m
c o
.
2
8 9 9
32 AMSELOUT2
31 AMSELOUT1
AMIFAGC1
30
29 AMSELIN2
28 AMSELIN1
27 TEST
26 PLLREF
PLL
TUNING
25 PLL
24 VCODEC
23 GND
22 VCC1
POWER
SUPPLY
VREGSUP
21
20 VREF
19 SDA
18 SCL
17 GNDD
2 4 9 8 2 9 9