Read Sony HCD-FX250 Service Manual online
HCD-FX250
HCD-FX250
16
16
5-5. SCHEMATIC DIAGRAM - MAIN Section (1/2) -
• See page 23 for IC Block Diagrams.
PANEL
G
CN802
BOARD
(2/2)
W101
BOARD
BD73
J
CN001
BOARD
PT
D
(2/2)
BOARD
PANEL
K
IC B/D
(2/2)
BOARD
MAIN
1
3.3
15.2
9.1
0.7
0
7.4
7.4
15.2
10.5
3.1
1.5
1.5
7.5
4.7
4.2
9.4
0
3.6
14.5
15.2
15.2
0.1
0.7
3.3
0
0
3.3
20
9
8.4
0
20
20.6
15.2
20.6
21.3
15.2
9.4
10.5
7.3
10
10
7.3
ISA1235AC1TP-1EF
Q932
2SC3052EF-T1-LEF
Q931
2SC3052EF-T1-LEF
Q910
0.1
C906
1
C907
16V
100
C350
I
O
G
KIA7809API-U/PF
IC901
1
2
3
7
6
5
4
3
2
1
13
12
11
10
9
8
LA4631-E
IC350
R.FIL
IN_1
PRE.GND
IN_2
STBY
P.
P
VCC
OUT_2
NC
P-GND
NC
OUT_1
NC
10V
220
C908
22k
R151
22k
R251
1000p
C153
1000p
C253
0.1
C901
0.1
C902
RL202-B322-1
D906
RL202-B322-1
D905
DAB_DO
DAB3.3ON
DGND
DAB_AGND
+9V
DAB_DI
DAB1.2ON
DAB_RESET
50V
1
C252
50V
1
C152
50V
10
C910
2SC3052EF-T1-LEF
Q903
DA2J10100L
D930
D913
2SC3052EF-T1-LEF
Q960
10k
R940
1k
R944
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
CN912
21P
AMP_R
AGND
AMP_L
AMP_ON
DAB_L
+9V
DAB_R
PROTECT
MGND
MGND
+7V
+7V
DGND
VSTBY
DAB_RXD
DAB_TXD
DAB_1.2V
DAB_3V
DAB_RESET
POWER_ON
RDS_DATA
DAB_L
DAB_R
1N4002-A2
D907
D910
4.7k
R935
4.7k
R934
4.7k
R933
5.1k
R932
1
2
3
4
5
6
6P
CN901
VSTBY
SUB_GND
RELAY
VHAC1
VM
VHAC2
1k
R914
E
ET900
1
2
3
3P
CN902
EMITTER
COLLECTOR
BASE
J350
JW911
50V
C904
1000
25V
C903
D914
C915
0.1
10V
470
C914
50V
10
C940
100k
R938
0
R942
2.2k
R918
50V
1
C258
50V
1
C158
1.5k
R920
1
2
3
3P
CN904
EMITTER
COLLECTOR
BASE
2SC3052EF-T1-LEF
Q909
L351
RL202-B322-1
D901
RL202-B322-1
D904
D931
2SC3052EF-T1-LEF
Q150
10k
R161
10k
R261
2SC3052EF-T1-LEF
Q250
DA2J10100L
D920
25V
C159
22
25V
C259
22
1
2
2P
CN913
DACGND
DACGND
1
2
2P
CN914
DACGND
DACGND
ISA1235AC1TP-1EF
Q902
16V
1000
C154
0.01
C155
0.01
C255
330
R256
330
R156
220
R255
220
R155
470
R160
470
R162
470
R262
470
R260
8.2k
R253
8.2k
R153
C254
16V
1000
2200p
C353
0.01
C260
0.1
C156
0.1
C256
0.1
C157
0.1
C257
10
R259
10
R159
0.01
C160
50V
4.7
C351
10k
R901
47k
R902
22k
R250
22k
R150
68k
R158
68k
R258
2.2k
R916
2.2k
R917
10k
R900
C355
25V
2200
10k
R919
6.8k
R921
47
R931
1
C930
10k
R937
1k
R927
R930
1k
4.7k
R936
1k
R928
0.1
C352
C150
1000p
C250
1000p
100
R252
100
R152
4.7k
R365
2SB1565E
Q930
ISA1235AC1TP-1EF
Q934
10k
R947
1
2
3
3P
CN903
EMITTER
COLLECTOR
BASE
10k
R948
10k
R957
2SB1565E
Q940
1
2
3
3P
CN905
EMITTER
COLLECTOR
BASE
ISA1235AC1TP-1EF
Q915
10k
R915
+7V
IC350
POWER AMP
(CHASSIS)
IC901
+9V REGULATOR
MAIN BOARD (1/2)
REGULATOR
OVER VOLTAGE
DETECT
OVER LOAD DETECT
Q150, 250
+7V REGULATOR
Q931, 932
ON/OFF CONTROL
MAIN POWER
PHONES
Q902, 903
STANDBY SWITCH
+
+
-
-
SPEAKERS
R
L
J351
E
11
J
3
D
F
14
15
8
G
7
I
13
A
10
9
C
4
H
16
2
6
B
5
1
12
4700
DZ2J09100L
DZ2J20000L
DZ2J09100L
DZ2J12000L
REGULATOR
REG BOARD
Q930, 934
Q915, 940
+7V REGULATOR
POWER-TR BOARD
(Page 21)
(Page 15)
(Page 22)
(Page 17)
(Page 21)
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