Schematic Diagram -Main Section (1/3) - Sony CDX-GT454US Service Manual

CDX-GT450U/GT454US
4-4. SCHEMATIC DIAGRAM – MAIN Section (1/3) –
1 2 3
GT454US GT450U
RL+ RL–
A 7 8 + 1
FRONT
L-CH
–
FL+ FL–
+
5 6 REAR 2
L-CH –
FR+ FR–
3 4 REAR + 3
R-CH
–
RR+ RR–
1 2 + 4
FRONT
R-CH
–
AMP REM
5
B ANT REM 6
FL+ FL–
1 9
ACC 7
RL+ RL–
2 10
GND 8
RR+ RR–
3 11 BATT
FR+ FR–
4 12
AMP REM
ATT
5 13
C
ANT REM
6 14
ACC
15
7
GND BATT
8 16
ACC GND
D 7 8
ANT REM
5 6
BATT
3 4
1 2
E
FB826
F
J801 FB802
(REMOTE IN)
FB801
G
BU_IN
H
I
CDX-GT450U/GT454US
• See page 23 for IC Block Diagrams.
4 5 6
MAIN BOARD (1/3)
9
10
11
12
13
14
15
16
L301
CN301
250uH
16P
14.4
+B 19 1 2
+B 18
FU601
10A +B
17
+B
16
GT454US
TEST 15
R321
ILL 14
1k
TEL-ATT 13
FR- 12
RR- 11
RL- 10
FL- 9
GND 8
R325 4.7k
ACC 7
ANT-REM 6
AMP-REM 5
FR+ 4
RR+ 3
RL+ 2
FL+ 1
D806
R815
RKZ7.5B2KGP1
1k
5.4
Q807
DRC5144E0L
0
BACK-UP CHECK
5.4
D807
R816
RKZ18B2KGP1
1k
0
Q802
DRC5114E0L
BACK-UP CHECK
R858
220k
R862
0
220k
2.7
Q808
2SC4154TP-1EF
BACK-UP CHECK
7 8 9
1 2 3 4 5 6 7 8 9
C329
0.22
C330
0.22
R319
10k
R316 R318
4.7k 10k
0.6 0.6
Q301 Q303
2SC4154TP-1EF 2SC4154TP-1EF
0 0
ACC DETECT TEL-ATT DETECT
JC363
0
RESET
R401
GT454US
100k
C401
S401
0.1
RESET
1
MAIN BOARD
(2/3)
(Page 19)
18 18
10 11 12
IC301 IC B/D
IC301
TDF8556AJ/N3
I2C BUS CONTROLLED
POWER AMP/MULTIPLE
VOLTAGE REGULATOR
10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29
C305
0.22
GT454US
R308 R320
C304
150 47k
0.22
C327
47p
14
IC403
Q407
DRA5114E0L
IC403 MUTE DRIVE
PST8228UL
13.7
RESET
4 5
3.1
IC B/D
1 4
VOUT VSS
3.3
IC402
2 VIN NC 3
IC402
TK11133CSCL-G
+3.3V REG
3 2 1
C445
1000p
C447
100
13.7
10V
Q409
DRC5114E0L
MUTE DRIVE
0
D404 D403
MA2J1110GLS0 MA2J1110GLS0
13 14
30 31 32 33 34 35 36 37
C312
C308 10
0.22 16V
C306 C313
1 47
16V
C301
0.22
11
12
13
14
15
MAIN
2
0 BOARD
(3/3)
(Page 20)
16
17
ILL+B