Read Sony CDX-GT250MP / CDX-GT252MP Service Manual online
CDX-GT250MP/GT252MP
CDX-GT250MP/GT252MP
4
4
2-2. SCHEMATIC DIAGRAM - MAIN Section (1/3) -
• See page 2 for IC Block Diagram.
5
11
H
6
C
E
13
1
B
G
12
I
D
F
A
9
2
8
4
10
7
3
1
MAIN BOARD
(2/3)
(3/3)
BOARD
MAIN
2
IC B/D
3
7.2
3
7.2
14.4
7.2
7.2
4.6
4.3
4.3
4.3
4.3
4.5
7.2
7.2
14.4
7.2
3.2
7.2
3.2
13.8
13.8
8.3
0<3.3>
6
10.3
14.4
14.2
5
0
2.7
0
0
6.7
0.6
0
3
3.3
13.9
0
0
13.7
3.3
5
5
0.6
0
6.7
MAIN BOARD (1/3)
IC301
IC403
IC402
4
3
1
2
16V
47
C313
0.22
C405
UDZW
-TE17-18B
D808
2SC4154TP-1EF
Q805
ACC DETECT
1
C209
1A4-A2
D305
16V
3300
C807
10k
R821
1000p
C806
2.2
C315
IC301
I2C BUS CONTROLLED POWER AMP/
MULTIPLE VOLTAGE REGULATOR
TA
B
1
I2C_SIO
2
OUT
-FL-
3
I2C_SCK
4
OUT
-FL+
5
VP2
6
OUT
-RL-
7
P-GND1
8
OUT
-RL+
9
SVR
10
IN-RL
11
IN-FL
12
S-GND
13
IN-FR
14
IN-RR
15
BEEP
16
OUT
-RR+
17
P-GND3
18
OUT
-RR-
19
VP1
20
OUT
-FR+
21
STB
22
OUT
-FR-
23
P-GND4
24
DIAG
25
RST
26
ANT
-REM
27
CRES
28
AMP-REM
29
AUDIO+B(8.5V)
30
SER
VO-3.3V
31
GND
32
MECHA-6V
33
PA
N
EL
+B
34
VP
35
CBU
36
BU+B
37
10V
C307
220
1
C1
14
0.22
C305
1
C210
1
C215
25V
22
22
C303
16V
C312
10
47k
R817
2SC4154TP-1EF
Q806
TEL-ATT DETECT
47k
R819
1
C109
0.1
C808
1000p
C805
4.7k
R818
1000p
C755
1
C1
10
0.22
C81
1
0.22
C406
1
C1
15
1
C214
0.22
C308
1A4-A2
D303
CN802
16P
1
FL+
2
RL+
3
RR+
4
FR+
5
AMP-REM
6
ANT-REM
7
ACC
8
GND
9
FL-
10
RL-
11
RR-
12
FR-
16
+B
13
TEL-ATT
14
ILL
15
TEST
17
+B
18
+B
19
+B
150
R308
0.22
C810
47k
R822
1
C803
UDZW
-TE17-18B
D81
1
1
C306
0.22
C304
10k
R820
16V
47
C322
DA2J10100L
D306
10V
1000
C409
0.1
C407
RT1P141M-TP-1
Q304
MUTE DRIVE
22
R313
100k
R401
XC61CN2802NR
IC403
RESET
VOUT
Vdd
NC
VSS
5
4
3 2 1
BU33TD3WG-TR
IC402
+3.3V REG
VIN
GND
STB
NC
VOUT
0
FB604
0.1
C402
DRC5114E0L
Q303
MUTE DRIVE
0.1
C401
R585
220k
R584
220k
2SC3052EF-T1-LEF
Q808
BACK-UP CHECK
J801
(REMOTE IN)
R815
1k
DRC5114E0L
Q802
BACK-UP CHECK
1k
R816
UDZW-TE17-18B
D807
UDZSUSTE-177.5B
D806
R541
100k
R540
100k
47k
C21
1
4.7k
R631
10V
100
C503
220
R415
220
R416
0
R309
R301
100
100
R302
1k
R824
250uH
L801
1
2
C404 0.22
C776 1000p
1A4-A2
D814
1A4-A2
D815
DRC5144E0L
Q807
BACK-UP CHECK
R826
R802
R801
1
2
3
4
5
6
9
10
11
12
13
11
12
13
14
15
16
BUS1
BUS2
BUS3
8
RCIN1
BEEP
STB
DIAG
TEL
I2C_SCK
I2C_SIO
BUS_ON
RESET
ACC
SYS_RESET
RCIN0
BU_IN
1
8
10A
32V
BATT
FL-
8
FR-
5
ACC
FL-
ATT
ANT REM
2
15
3
4
RL-
4
16
8
2
10
6
FR+
6
FL+
GND
11
FR-
ANT REM
RR+
BATT
FL+
4
7
RL+
2
RR-
RR-
1
6
ACC
5
RL+
1
9
14
RR+
5
13
3
GND
12
FR+
AMP REM
7
FU601
7
3
RL-
TDF8554AJ/N5
1A4-A2
D813
(Page 6)
(Page 5)
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