Sony HCD-FX250 Service Manual ▷ View online
HCD-FX250
HCD-FX250
21
21
5-10. SCHEMATIC DIAGRAM - PANEL Board (2/2) -
• See page 23 for IC Block Diagrams.
PANEL
11
BOARD
(1/2)
G
CN912
(1/2)
MAIN
BOARD
A
CN401
BD73
BOARD
IC B/D
IC B/D
IC B/D
BOARD
(1/2)
CN913
K
MAIN
3.7
3.7
3.7
7.3
3.5
3.7
3.7
4
8.6
1.3
8.6
4.5
4.5
4.5
4.5
9.1
3.3
3.3
3.3
3.3
0
3.3
3.3
0
3
3.3
4
1.3
3
4
7.3
7.3
4
7.3
3.3
4.5
4.5
4.5
4.5
4.5
4.5
4.5
4.5
4.5
4.5
4.5
4.5
4.5
4.5
4.5
4.5
4.5
4.5
0
10k
R120
470p
C120
10k
R220
R221
47k
470p
C220
R121
47k
32
31
30
29
28
27
1
2
3
4
5
6
26
25
24
7
8
9
23
22
21
20
10
11
12
19
18
17
13
14
15
16
BD3491FS
IC301
IN-L2
IN-R2
IN-L3
IN-R3
IN-L4
IN-R4
IN-L5
IN-R5
IN-L6
IN-R6
SEL R
SEL L
VOL L
VOL R
TC R
TC L
BCB R
BCA R
BCA L
BCB L
OUT R
SB R
SR
SB L
OUT L
VCC
SCL
SDA
GND
FIL
IN-R1
IN-L1
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
CN802
21P
KTC3203Y-AT
Q981
100
R986
100
R988
0.1
C982
0.1
C983
1SS133T-77
D981
W830
TK11140CSCL-G
IC980
1
CONT
2
GND
3
NOISE
4
VOUT
5
VIN
R989
1k
1
C985
10V
220
C304
10V
47
C301
50V
1
C102
50V
1
C202
50V
1
C106
50V
1
C206
1
C104
1
C204
1
C201
1
C101
MC2836
D802
J320
6.3V
C992
470
6.3V
C991
470
0.1
C993
0.1
C994
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
15P
CN830
CD_CE
CD_CL
CD_DO
CD_DI
CD_RESB
CD_M-MUTE
DVDD
DGND
AGND
L-OUT
DACGND
R-OUT
AVDD
VM(7V)
MGND
RT1P144C-TP-1
Q987
RT1P144C-TP-1
Q988
1
C973
0.01
C971
0.22
C970
Q982
KTC3205Y-AT
5
4
3
2
1
TK11140CSCL-G
IC970
CONT
GND
NOISE
VO
VI
RT1N144C-TP-1
Q989
FB320
L321
10uH
R107
R207
8
7
6
5
4
3
2
1
NJM4558V-TE2
IC310
V-
V+
100k
R306
100p
C309
1
C311
1
C308
C310
1
470k
R310
R312
10k
R311
10k
C314
1
1k
R305
C315
1
220k
R116
220k
R216
1000p
C980
1000p
C313
2200p
C312
3900p
C207
3900p
C107
2.2k
R204
2.2k
R104
2.2k
R102
2.2k
R202
0.1
C303
0.1
C302
100
R302
100
R301
4.7k
R209
R109
4.7k
0.1
C210
0.1
C109
0.1
C209
0.1
C110
1
C984
10V
100
C981
10k
R307
10k
R308
35
39
38
93
2
5
1
4
3
100
94
36
PROTECT
34
1SS133T-77
D982
24
23
1
2
3
4
5
MIXER
IC310
+4V REGULATOR
IC980
+7V
POWER_ON
MGND
DAB_TXD
AMP_ON
MGND
DAB_3V
VSTBY
PROTECT
AMP_L
DAB_RESET
DAB_RXD
+7V
+9V
AGND
RDS_DATA
DGND
DAB_1.2V
DAB_R
AMP_R
DAB_L
+4V REGULATOR
IC970
ELECTRICAL VOLUME,
IC301
AUDIO IN
(2/2)
PANEL BOARD
INPUT SELECTOR
3.9k
3.9k
PROTECT DETECT
Q987-989
Q981, 982
+3.3V REGULATOR
E
11
J
3
K
D
F
14
8
G
7
I
13
A
10
9
C
4
H
2
6
B
5
1
12
(CHASSIS)
MC2840-T112-1
D320
TP320
(CHASSIS)
(Page 20)
(Page 16)
(Page 16)
(Page 15)
HCD-FX250
HCD-FX250
22
22
5-12. SCHEMATIC DIAGRAM - PT Board -
D001
1
3
CN001
CN004
FH003
FH004
RY001
JW006
JW013
T001
T002
JW050
JW051
F002
C905
D925
D926
D927
D928
1-881-341-
11, 12
(11, 12)
1
6
MAIN POWER
TRANSFORMER
SUB POWER
TRANSFORMER
D
MAIN BOARD
CN901
PT BOARD
1
4
9
5
1
4
8
6
NOT REPLACEABLE:
BUILT IN TRANSFORMER
BUILT IN TRANSFORMER
(AC IN)
A
B
C
D
E
1
2
3
4
5
6
CN901
MAIN
(1/2)
D
BOARD
DA2J10100L
D001
F002
250V
T001
1
3
8
7
6
4
2
1
2
3
4
5
6
6P
CN001
VSTBY
SUB_GND
RELAY
VHAC1
VM
VHAC2
RY001
JW006
1
3
4
5
6
7
8
9
2
T002
1N4002-A2
D925
1N4002-A2
D926
1N4002-A2
D927
1N4002-A2
D928
25V
1000
C905
JW050
JW051
MAIN POWER
TRANSFORMER
SUB POWER TRANSFORMER
(AC IN)
PT BOARD
NOT REPLACEABLE:
BUILT IN TRANSFORMER
T160mAL
CN004
2
1
3
3P
AC_L
AC_N
NC
E
3
D
7
A
C
4
2
6
B
5
1
(Page 18)
(Page 16)
5-11. PRINTED WIRING BOARD - PT Board -
•
: Uses unleaded solder.
• See page 12 for Circuit Boards Location.
HCD-FX250
23
• IC Block Diagrams
– BD73 Board –
IC101 LC786924NT-US-H
RF SIGNAL
PROCESSOR
MEMORY
INTERFACE
MEMORY
1M BIT
EFMIN 1
RFOUT 2
LPF 3
FDO
22
AV
D
D
21
DEFFECT
33
FSEQ
34
DVDD15
38
VVDD3
39
VVSS3
40
C2F
35
DVDD
36
DVSS
37
VVDD1
30
CONT5
31
TEST0
53
CONT0
52
CONT1
51
CONT2
50
INTB1
49
INTB0
48
RESB
47
DO
46
DI
45
CL
44
CE
43
DVSS
42
DVDD
41
DATA
58
DATACK
59
LRSY
60
STREQ
54
STCK
55
STDATA
56
TEST1
57
PCMLRSY
62
PCMBCK
63
PCMDA
TA
64
PCMREQ
65
DVSS
67
DVDD15
66
DVDD
61
DVDD
68
XVSS
71
CONT4
70
LR
VDD
75
XVDD
74
LR
VSS
79
SLCO
80
TDO
23
SLDO
24
SPDO
25
VVSS1
26
PDOUT1
27
PDOUT0
28
PCKIST
29
CONT3
32
AVSS 20
PHLPF 4
AIN 5
CIN 6
BIN 7
DIN 8
SLCISET 9
RFMON 10
VREF 11
JITTC 12
EIN 13
FIN 14
TE 16
TEIN 17
LDD 18
LDS 19
PCNCNT 15
SLICE LEVEL
CONTROL
LOW-PASS
FILTER
CLOCK
GENERATOR
TES, HFL,
DETECT
D/A
CONVERTER
A/D
CONVERTER
CD
PLL
SERVO
CONTROL
SYNCHRONIZATION
DETECTION
EFM
DEMODULATION
AUDIO CONTROL
MUTE/DEEMPHASIS/
ATTENUATION CONTROL/
BASS/TREBLE/
HFC FILTER
MONITOR
SRC
VREF
JITTER
ERROR CORRECTION
DOUT CONTROL
STREAM CONTROL/
AUDIO INPUT
PORT CONTROL
PLL3
INTERPOLATION MUTE
RCHO
78
LRREF
77
LCHO
76
XIN
73
XOUT
72
DOUT
69
8FS DIGITAL FILTER/
1BIT D/A CONVERTER
AUDIO OUTPUT
CONTROL
PCM OUTPUT
CONTROL
MP3, WMA
DECODER
DECODER
ROM
DECODER
TEXT
DECODER
MCU
INTERFACE
SUBCODE
DECODER
DECODER
APC
HCD-FX250
24
IC301 BA5826HFP-E2
1
2
3
4
5
6
7
8
9
10
11
12
13
13
14
28
27
26
24
23
22
21
20
19
18
17
16
15
25
LEVEL
SHIFT
LEVEL
SHIFT
THERMAL
SHUT-DOWN
REGULATOR
REGULATOR
BIAS TRAP
LEVEL
SHIFT
MUTE
LEVEL
SHIFT
D.BUFF
D.BUFF
D.BUFF
GND
IN4
IN4'
BIAS
VCC
VCC
IN3'
IN3
VO3(+)
VO3(–)
VO4(–)
VO4(+)
RESETt
OPIN
VO1(–)
REGB
VO1(+)
IN1
RESET
REGOUT
MUTE
GND
IN2'
IN2
VO2(+)
VO2(–)
GND
OPOUT
D.BUFF
D.BUFF
D.BUFF
D.BUFF
D.BUFF
REGULA
TOR
VCC
VCC
– MAIN Board –
IC350 LA4631-E
OUT1
VCC
OUT2
IN2
PRE GND
IN1
P.
P.
ST
ANDBY
2
FIL
TER
1
3
4
5
6
7
8
11
13
POWER GND
10
9
12
PRE
DRIVE AMP
INPUT
AMP
STANDBY
SWITCH
THERMAL
SHUT DOWN
PROTECTOR
POP NOISE
PREVENTION
CIRCUIT
REFERENCE
AMP
RIPPLE
FILTER
OUTPUT
AMP
PRE
DRIVE AMP
INPUT
AMP
OUTPUT
AMP
IC754 MM3291CNRE
VDD 1
GND 2
CE 3
NC
4
REGULATOR
VOUT
5
Click on the first or last page to see other HCD-FX250 service manuals if exist.