Sony CDX-L480N Service Manual ▷ View online
21
21
CDX-L480N
D710
D711
D716
D717
D718
D720
R502
R503
R508
R509
R515
R516
R523
R524
R525
R526
R527
JC533
R517
R674
R583
R501
R531
R512
R511
R510
L501
X501
D712
JC532
JC21
C501
C505
C506
C507
C509
C508
JC530
R530
R528
R534
R520
D502
C621
L502
C504
C503
JC53
JC401
L303
C305
C301
C343
R504
R505
R513
R514
CNP301
C303
JC580
JC581 JC582
D719
D715
R999
JC88
R532
R533
D501
X502
IC602
R584
Q664
R585
D581
Q581
Q580
Q582
L301
S702
C622
C623
L302
C302
L304
L305
L306
L307
R535
R536
R522
R521
R539
IC501
R518
R540
R541
R671
R672
D580
R582
R673
CN701
R720
JC303
JC304
2-10. SCHEMATIC DIAGRAM — MAIN SECTION (2/2) — • Refer to page 16 for Common Note on Schematic Diagram.
(Page 18)
(Page 23)
(Page 20)
Note:
• Voltage is dc with respect to ground under no-signal
(detuned) condition.
no mark : FM
(
no mark : FM
(
) : AM
<
> : CD PLAY
∗
: Impossible to measure
22
22
CDX-L480N
1
A
B
C
D
E
F
G
H
I
2
3
4
5
6
7
8
9
10
11
12
13
14
S900
S901
S902
S903
LSW904
LSW905
S906
LSW
907
LSW
908
LSW
909
LSW910
LSW911
S912
LSW
913
LSW
914
LSW
915
LSW
916
LSW
917
LSW
918
LSW
919
LSW
920
LSW
921
R965
R964
R966
R901
R902
R903
R904
R905
R906
R907
R908
R909
R914
R915
R916
R917
R918
R919
LCD901
R920
R921
R946
R945
R941
R942
R943
R963
R962
LED900
LED903
LED902
LED906
IC971
LED951
LED952
LED932
LED931
LED901
LED912
D901
R971
R981
R982
R983
D902
R931
R932
R933
R952
R951
R955
R954
R956
R957
R991
R994
R995
R996
C992
C993
C991
R984
R986
R985
C994
C995
R992
R993
C971
R987 R988 R989
R972
R912
R911
R913
CN901
FMB4
FMB3
D991
R961
R944
IC901
2-11. PRINTED WIRING BOARD — KEY SECTION — • Refer to page 15 for Circuit Boards Location and page 16 for Common Note on Printed Wiring Boards.
: Uses unleaded solder.
(Page 19)
LED902
D-2
LED903
A-1
LED906
C-3
LED912
D-13
LED931
C-11
LED932
C-4
LED951
A-13
LED952
A-2
Ref. No.
Location
D901
G-11
D902
G-11
D991
H-13
IC901
G-8
IC971
D-14
LED900
A-14
LED901
C-12
• Semiconductor Location
Ref. No.
Location
23
23
CDX-L480N
2-12. SCHEMATIC DIAGRAM — KEY SECTION — • Refer to page 16 for Common Note on Schematic Diagram.
Note:
• Voltage is dc with respect to ground under no-signal
(detuned) condition.
no mark : FM
no mark : FM
(Page 21)
R901
R902
R903
R911
R912
R913
R991
R981
R982
R983
R984
R985
R986
D901
R972
CN901
R971
R996
R994
R995
R909
R908
R907
R906
R905
R904
R914
R915
R916
R917
R918
R921
R920
R919
R987
R988
R989
LED900
LED901
LED902
LED903
LED906
LED912
LED951
LED952
R931
R932
R933
R941
R942
LSW911(2/2)
LSW910(2/2)
R945
R946
R951
R952
LSW913(2/2)
LSW914(2/2)
LSW915(2/2)
LSW916(2/2)
R954
LSW920(2/2)
R955
LSW919(2/2)
LSW918(2/2)
LSW917(2/2)
R956
R957
LSW907(2/2)
LSW908(2/2)
LSW909(2/2)
LSW921(2/2)
R962
R963
R964
R965
LSW904(2/2)
R966
LSW905(2/2)
R943
C991
C992
C993
C994
C995
C971
R993
R992
S900
S901
S902
S903
LSW905(1/2)
S906
LSW907(1/2)
LSW908(1/2)
LSW909(1/2)
LSW910(1/2)
LSW911(1/2)
S912
LSW913(1/2)
LSW914(1/2)
LSW915(1/2)
LSW916(1/2)
LSW917(1/2)
LSW918(1/2)
LSW919(1/2)
LSW920(1/2)
LSW921(1/2)
LSW904(1/2)
IC971
D991
D902
LED931
LED932
LCD901
R944
R961
IC901
24
24
CDX-L480N
76
75
AGCI
AGCO
74
RFI
73
C3T
72
ASY
71
EFM
70
AVDD
69
7E DAC3
68
7D DAC2
67
7C DAC1
66
7F DAC0
65
MD
64
SD
63
TD
62
FD
60
ATEST
59
TEST1
58
TEST0
57
DGND
56
TSTB
55
TSCK
54
TSI
53
TSO
52
PACK
51
DVDD
61
AGND
1
DGND
2
RFOK
3
RST
4
A0
5
STB
6
SCK
7
SO
8
SI
9
XTALEN
10
DVDD
11
DAVDD
12
ROUT
13
DAGND
REGC
16
LOUT
17
DAVDD
18
R+
19
R–
20
L+
21
L–
22
XVDD
23
XTAL
24
XTAL
25
XGND
15
14
DAGND
77
RFO
78
EQ2
79
EQ1
80
RF-
81
AGND
82
A
83
C
84
B
85
D
86
F
87
E
88
AVDD
89
REFOUT
90
FE-
91
FEO
92
TE-
93
TEO
94
TE2
95
AGND
TEC
96
PD 97
98
LD
PN 99
100
AVDD
50 C2D3
49 C2D2
48 C2D1
47 C1D2
46 C1D1
45 DGND
44 PLCK
43 MIRR/WFCK
42 RFCK
41 LOCK
40 DVDD
39 TSOI
38 C16M
37 DGND
36 TX
35 HOLD/WDCK
34 LRCK
33 LRCKIN
32 SCKO
31 SCKIN
30 DOUT
29
28
DIN
FLAG
27 EMPH
26 DVDD
EFM
COMPARATOR
EFM
EFM
DEFECT
FOK
A3T
MIRR
FEO
TEO
TEOFS
FEOFS
RF
AMP BLOCK
SWITCH
MICROCOMPUTER INTERFACE
SCF
OSC
FOCUS
REGISTER
TRACKING
REGISTER
OCTUPLED
OVERSAMPLING DIGITAL FILTER
NOISE SHAVER
OUTPUT BUFFER
NOISE SHAVER
OUTPUT BUFFER
DE-EMPHASIS CIRCUIT
D/A
INTERFACE
CIRCUIT
OUTPUT PROCESSOR
DIGITAL
AUDIO
INTERFACE
DIGITAL PLL
TIMING GENERATOR
EFM DEMODULATOR
ERROR
CORRECTION
PROCESSOR
MICROCOMPUTER INTERFACE
CD-TEXT DECODER
SUB-CODE PROCESSOR
16K
SRAM
D/A
AUTO GAIN
CONTROLLER
FD/TD/SD/MD
CONTROLLER
CONTROLLER
ADDER
SVDRAM
MULTIPLIER
SVCRAM
SVROM
ROM
DECODER
CLV
PROCESSOR
DEFECT
COMPARATOR
RFENV
MIRENV
A/D CONVERTER
MEMORY
PROCESSOR
COMPARATOR
IC51 SAA6588T/V2-518
IC1 µPD63711GC-8EU
2-13. IC BLOCK DIAGRAMS
SCOUT
MRO
MPTH
TCON
OSCO
OSCI
VSSD
VDDD
DAVN
SDA
VREF
MPX
VSSA
VDDA
AFIN
MAD
PSWN
SCL
2
1
6
15
11
13
16
14
12
INTERFACE
REGISTER
SIGNAL QUALITY
DECODER
CLOCKED
COMPARATOR
POWER SUPPLY
& RESET
TEST
CONTROL
OSCILLATOR
& CLOCK
PAUSE
DETECTOR
MULTI
PATH
DETECTOR
57kHz
8th ORDER
BAND-PASS FILTER
RDS/RDBS
DECODER
RDS/RDBS
DEMODULATOR
IIC BUS SLAVE
TRANSCEIVER
17
18
CIN
19
LVIN
20
8
7
DATA
CLOCK
DATA
CLOCK
4
4
5
9
10
3
4
5
IC2 BA5810FP-E2
1
FWD
+
–
+
–
+
–
2
REV
LOADING PRE
FWD REV
3
LDCONT
6
IN2
7
PREVCC
8
POWVCC
VOL–
VOL+
IN1
4
PS
+
–
LEVEL
SHIFT
+
–
+
–
LEVEL
SHIFT
LEVEL
SHIFT
+
–
POWER
SAVE
CH1-4
MUTE
X3
9
10
11
VO2–
12
VO2+
13
VO1–
14
VO1+
5
BIAS
OPIN4+
OPIN4–
OPIN3–
OPOUT3
MUTE
POWVCC
GND
OPIN3+
OPOUT4
VO3–
VO3+
VO4–
VO4+
7.5k
7.5k
16k
16k
7.5k
7.5k
16k
16k
10k
10k
10k
10k
10k
10k
10k
10k
10k
10k
10k
10k
+
–
+
–
+
–
LEVEL
SHIFT
+
–
+
–
+
–
10k
10k
10k
10k
+
–
28
27
26
23
22
21
25
20
19
18
17
16
15
24
POWVCC34
(CH3,CH4)
PREVCC
(PRE.LOADING)
POWVCC12
(CH1.CH2)
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