Sony HCD-FX300I Service Manual ▷ View online
HCD-FX300i
29
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
• IC Block Diagrams
– BD73/BD73U Board –
IC101 LC786924NT-US-H
HCD-FX300i
30
IC301 BA5826HFP-E2
– MAIN Board –
IC350 LA4631-E
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
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
HCD-FX300i
31
IC5002 PT2579SN
IC5001 LV23401V-TLM-H
1
AM ANT
2
AM REF
3
AM VT
6
MPX OUT
4
GND AM
7
AM AGC
8
GND1
9
L-OUT
10
R-OUT
12
AM LCF
FM ANT
30
GND4
29
FLL
CAP
28
CE
18
CLK IN
16
ST
ADJ
17
13
SD OUT
11
VCC LOW
15
VCC
14
ST
OUT
ST OUT
SD OUT
DIVIDER
LDO
AGC DET
LOCAL
OSCILLATOR
OSC CAP
GND
TUNING
SYSTEM
CL
19
DI
20
DO
21
BAND-PASS
FILTER
STEREO
DECODER
POWER
MANAGEMENT
REFERENCE
OSC
STATE
MACHINE
STEREO
BLEND
IMAGE DET
DEMODULATOR
DE-EMPHASIS
AUDIO
AMPLIFIER
ANT CAP
L2
26
VREF3 (4.3V)
25
L1
24
GND3
23
VREF2 (3.3V)
22
5
VREF1 (4.3V)
SD ADJ
27
FLL
LNA
LNA
RDCL
T57
OSC2
OSC1
DVSS
MODE
DVDD
TEST
QUAL
RDDA
VREF
MUX
AV
D
D
AVSS
CIN
SCOUT
1
4
3
6
5
8
7
2
14
15
16
13
12
11
10
9
CLOCK
REGENERATION
& SYNC
BIPHASE
SYMBOL
DECODER
TEST LOGIC &
OUTPUT SELECTOR
SWITCH
OSCILLATION
&
DIVIDER
57 kHz
BAND PASS
(8th ORDER)
COSTAS LOOP
VARIABLE &
FIXED DIVIDER
QUALITY BIT
GENERATOR
DIFFERENTIAL
DECODER
ANTI-ALIASING
FILTER
CLOCKED
COMPARATOR
REFERENCE
VOLTAGE
RECONSTRUCTION
FILTER
HCD-FX300i
32
IC970, 980 TK11140CSCL-G
IC981 BD8410FPS-E2
IC802 S-80928CNNB-G8YT2G
– PANEL Board –
IC301 BD3491FS-SE2
1
B1
20 BCB1
19 BCA1
18 BCA2
19 BCA1
18 BCA2
22 SB2
21 OUT2
24 SB1
23 SR
23 SR
26 VCC
25 OUT1
28 SDA
27 SCL
27 SCL
30 FIL
29 GND
29 GND
17 BCB2
2
B2
3
C1
5
D1
6
D2
4
C2
13
VOL1
14
VOL2
15
TC2
16
TC1
7
E1
8
E2
11
SEL2
12
SEL1
INPUT
SELECTOR
TREBLE/
BASS
BUFFER
VOLUME
INPUT
GAIN
SURROUND
I2C BUS
LOGIC
9
F1
10
F2
32 SDA
31 SCL
31 SCL
1
VSS
2
VDD
3 CD
4 OUT
+
–
–
DELAY
CIRCUIT
VREF
CONTROL
CIRCUIT
BANDGAP
REFERENCE
+
–
OVER HEAT &
OVER CURRENT
PROTECTION
1
VCONT
3
NP
2
GND
4
VOUT
5
VIN
VIN 2
VOUT 4
OCOUT 5
STBY 3
GND
FIN
OCP 1
VOLTAGE
REFERENCE
STANDBY
OVER CURRENT
PROTECTION
THERMAL
SHUTDOWN
+
–
DISCHARGE
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