Schematic Diagram -Main Section (1/3) - Sony CDX-GT48UM Service Manual

Q Q
3 7 6 3 1 5 1 5 0
4-4. SCHEMATIC DIAGRAM – MAIN Section (1/3) –
1 2
GT480U/GT480US:E,MX MODEL/GT484US
A
+ 1 9
FRONT
L-CH
–
+ 2 10
REAR
L-CH
–
+ 3 11
REAR
R-CH
–
FRONT + 4 12
R-CH
–
B
AMP REM 5 13
ANT REM 6 14
ACC 7 15
GND 8 16
BATT
C
GT480US:AR MODEL
RL+ RL–
7 8
FL+ FL–
5 6
FR+ FR–
3 4
RR+ RR–
1 2
D
FL+ FL–
1 9
FU601
10A
RL+ RL–
2 10
RR+ RR–
3 11
T E
L 1 3 9 4 2 2 9 6 5 1 3
FR+ FR–
4 12
E
AMP REM
5 13
ANT REM
6 14
ACC
7 15
GND BATT
8 16
F
ACC GND
7 8
ANT REM
5 6
BATT
3 4
1 2
G
H
I
w w w
CDX-GT48UM/GT480U/GT480US/GT484US
• See page 24 for IC Block Diagrams.
3 4 5
MAIN BOARD (1/3)
CN802
16P
FL+
1
RL+
2
RR+
3
FR+
4
R825 0
AMP-REM
5
ANT-REM
6
R823 4 . 7 k
ACC
7
GND
8
FL-
9
RL- 10
RR- 11
FR- 12
TEL-ATT 13
ILL 14
TEST 15
+B 16
L801
+B 17 250uH
+B 18
+B 19
14.4
0
Q805
0.6
2SC3052EF-T1-LEF
ACC DETECT R819
47k
D806
MAZ8075GMLS0
6.2
0
Q802
RT1N141C-TP-1
D807
MAZ8180GMLS0
6.2
Q802,807,808 Q807
RT1N141C-TP-1
BACK-UP CHECK
R827
220k
0
Q808
2SC3052EF-T1-LEF
2.8
R826
R802
0
0
J801
(REMOTE IN)
R801
0
x a o
y
. i
http://www.xiaoyu163.com
6 7 8 9
R830
0 1 2 3 4 5 6 7 8
C810
0 . 2 2
C811
0 . 2 2
ACC
Q Q
3 7 6
R815 1k
R306
R816 1k
47k
Q305
RT1P141C-TP-1
3.3
ATT
RC0
RC1
Q305
CD MUTE
u 1 6 3
.
19 19
CDX-GT48UM/GT480U/GT480US/GT484US
2 4
8 9 9
10 11 12
IC B/D IC301
I2C BUS CONTROLLED
POWER AMP/MULTIPLE
VOLTAGE REGULATOR
IC301
TDA8588AJ/N2/R1
9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28
C305
0 . 2 2
C211
C111
100p
100p
C304
0 . 2 2
C116 C216
100p 100p
C210 C209
1 1
C215 C214
1 1
C115 C114
1 1
C110 C109
1 1
3 1 5 1 5 0 8 9 2
C303
22
25V
C315
C314 R308
2 . 2
47p 150
Q304
R313
RT1P141C-TP-1
47
13.8 0
D306
IC403
MA2J1110GLS0
RESET
IC403
XC61CN2802NR
D308
13.7
MA2J1110GLS0 3.3
0
0 NC VIN
R401
100k
3.3
VSS VOUT
3.3
C322 S401 C401
47 0 . 0 1
D309
RESET
16V
MA2J1110GLS0
Q303,304
MUTE DRIVE
2
MAIN BOARD (3/3)
(Page 21) m
c o
2
8 9 9
13 14
29 30 31 32 33 34 35 36 37
C306
1
C307 C312
47 10
16V 16V
C308 C311
0 . 0 1 0 . 0 1
C309 C313
10 10
16V 16V
1
2
3
4
MAIN
1
4 9 8 2 9 9
BOARD
(2/3)
(Page 20)
5
6
7
8
9
IC402
IC402
+3.3V REG
S-1206B33-U3T1G
3.3
3 2
5.1
O I
VSS
1
C402 C403
0 . 1 330
6.3V