Sony CDX-GT25MPW Service Manual page 24

CDX-GT25MPW/GT30MP/GT250MP/GT257ME/GT300MP/GT303MP
• IC Block Diagrams
IC301 TDF8554AJ/N1 (MAIN Board (1/3))
(Russian model)
TAB 1
OUT-FL– 3
I 2 C BUS
FL
OUT-FL+ 5
OUT-RL– 7
RL
OUT-RL+ 9
11
IN-RL
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
BATTERY TEMPERATURE
DIAG 25
ENABLE
DETECTION PROTECTION
LOGIC
SWITCH
ANT-REM 27
AMP-REM 29 SWITCH
SERVO-3.3V 31
MECHA-6V
33
VP 35
REFERENCE
VOLTAGE
LOADDUMP BACK-UP
BU+B 37
REGULATOR PROTECTION SWITCH
CDX-GT25MPW/GT30MP/GT250MP/GT257ME/GT300MP/GT303MP
IC301 TDF8556AJ/N1 (MAIN Board (1/3))
TAB 1
2 I2C_SIO
OUT-FL– 3
4 I2C_SCK
OUT-FL+ 5
6 VP2
OUT-RL– 7
8 P-GND1
OUT-RL+ 9
10 SVR
11
IN-RL
12
IN-FL
S-GND 13
PROTECTION/
14 DIAGNOSTIC
IN-FR
IN-RR 15
16 BEEP
OUT-RR+ 17
18 P-GND3
OUT-RR– 19
20 VP1
OUT-FR+ 21
22 STB
OUT-FR– 23
CHIP DETECT/
24 P-GND4
DIAGNOSTIC
DIAG 25
26 RST
SWITCH
ANT-REM 27
28 CRES
AMP-REM 29 SWITCH
AUDIO+B
30
(8.5V)
SERVO+3.3V 31
32 GND
MECHA+6V
33
34 PANEL+B
VP 35
REFERENCE
36
CBU
VOLTAGE
BU+B 37
REGULATOR
(Except Russian model)
2 I2C_SIO
I 2 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
LOAD DUMP BACK-UP
PROTECTION SWITCH
24 24
IC402 TK11133CSCL-G (MAIN Board (1/3))
5 4
OVERHEAT &
OVERCURRENT
PROTECTION
CONTROL
CIRCUIT
BAND GAP
REFERENCE
1 2 3
IC001 TEF6617T/V1/S470, 518 (MAIN Board (3/3))
AMRFIN 1
AM
AMRFDEC 2
TUNER
FMIN2 3
FM
TUNER
FMIN1 4
GNDRF 5
VCC2 6
RDS
DEMODULATOR
AND
DECODER
AMRFAGC 7
LOUT 8
STEREO DECODER
HIGH CUT
ROUT 9 OUTPUT
SOFT MUTE
NOISE BLANKER
GNDAUD 10
AMIFAGC2 11
MPXIN 12 SIGNAL
IMPROVEMENT
CONTROL
MPXOUT 13
BANDWIDTH
RSSI 14 CONTROL
XTAL2 15
XTAL1 16
32 AMSELOUT2
31 AMSELOUT1
30 AMIFAGC1
29 AMSELIN2
28 AMSELIN1
27 TEST
26 PLLREF
PLL
TUNING
25 PLL
SYSTEM
VCODEC
24
23 GND
22 VCC1
POWER
SUPPLY
21 VREGSUP
20 VREF
19 SDA
I2C BUS
SCL
18
17 GNDD