Sony CDX-M850MP Service Manual ▷ View online
37
37
CDX-M850MP
IC B/D
D506
D507
D511
D512
D513
D514
IC503
Q503
Q504
R531
R532
R533
CN502
C536
C540
C533
C539
C538
R509
R538
C537
FB503
SW501
CN501
C535
R525
R534
R537
R536
C541
4-13. SCHEMATIC DIAGRAM — SUB SECTION — • Refer to page 41 for IC Block Diagrams.
Note:
• Voltage is dc with respect to ground under no-signal
(detuned) condition.
no mark : FM
no mark : FM
(Page 35)
38
38
CDX-M850MP
1
A
B
C
D
E
F
G
H
I
2
3
4
5
6
7
8
9
10
11
12
13
14
FMA9
FMA10
FMA11
FMA12
S909
IC1
R981
C907
C904
C960
C908
R984
C909
C910
LED909
FL900
C961
C983
IC301
R939
R929
R928
FB907
Q904
Q903
FB908
FB909
FB911
FB912
FB913
C901
R906
FB917
FB904
R994
R964
R967
R968
D908
R944
D902
FB901
R985
C911
R940
FB906
R941
FB925
FB903
FB926
FB905
C914
R947
FB902
R982
D901
R965
FB971
S931
FB914
R969
C905
IC62
C903
R991
FB915
C902
R992
R916
FB916
C913
X301
FB923
FB922
FB920
FB921
FB60
R987
R986
S932
C970
LED931
R970
C963
C912
C973
IC2
C915
D910
D911
D912
D913
D914
D
915
D916
D917
D918
D919
R972
C962
C922
C921
C920
D920
D921
R948
FB918
FB919
FB910
FB924
R988
R989
R971
R945
R
954
R956
R951
R999
C906
LED956
R980
R979
LCD2
R978
Q905
LED911
LED957
R942
R914
R925
R915
R918
R919
R920
R921
R922
R913
R923
R907
R908
R909
R912
R911
R910
LED955
S903
Q908
R901
R902
Q907
LED958
S906
S911
S915
S919
S920
S916
S912
S908
S913
S917
S921
S922
S918
S914
S905
S902
S901
LED902
LED903
LED905
LED906
CNP908
LED908
S904
LED901
LED913
LED915
LED916
LED919
LED920
LED921
S907
LED922
LED912
R949
R917
LED917
R961
R957
R935
R946
R952
R955
R960
R990
R936
R950
R959
R962
R958
R953
D70
4-14. PRINTED WIRING BOARD — DISPLAY SECTION — • Refer to page 27 for Circuit Boards Location.
(Page 32)
Ref. No.
Location
D70
F-2
D901
B-1
D902
B-4
D908
B-10
D910
D-11
D911
D-11
D912
D-11
D913
D-11
D914
D-11
D915
C-10
• Semiconductor Location
Ref. No.
Location
Ref. No.
Location
Ref. No.
Location
D916
C-10
D917
D-10
D918
D-10
D919
D-10
D920
C-10
D921
C-10
IC1
C-8
IC2
B-6
IC62
C-2
IC301
C-7
LED901
F-2
LED902
H-3
LED903
H-1
LED905
F-3
LED906
F-4
LED908
H-4
LED909
B-13
LED911
H-14
LED912
H-12
LED913
H-13
LED915
F-13
LED916
F-12
LED917
F-11
LED919
H-5
LED920
H-9
LED921
H-11
LED922
F-13
LED931
B-2
LED955
F-9
LED956
F-6
LED957
G-4
LED958
G-13
Q903
C-11
Q904
C-10
Q905
F-4
Q907
H-2
Q908
G-2
Ref. No.
Location
39
39
CDX-M850MP
IC B/D
IC B/D
IC62
Q904
Q908
R942
R940
R941
Q907
D70
LED955
LED956
LED957
LED958
S931
S932
S902
S903
S905
S906
S908
S909
S911
S913
S915
S916
S919
S920
S921
S922
R936
D908
C905
R944
R947
FB971
LED909
LED917
LED931
IC301
LED911
D902
R950
D901
LED902
LED903
LED905
LED906
LED908
LED901
LED913
LED915
LED916
LED919
LED920
LED921
X301
CNP908
R935
LED912
Q903
R929
R928
R902
R901
C912
R968
C902
C901
R969
C903
C904
S901
R913
R912
R911
S904
S912
R923
R922
S914
R921
R910
R909
R920
R908
S907
R919
R907
S917
R918
R906
S918
R917
R916
R915
R914
R925
C970
C914
R991
R992
C913
C907
R981
R980
R979
R978
R987
R986
R985
R984
R982
C908
C910
C909
C911
R939
C962
C983
IC1
Q905
R990
LED922
LCD2
FB911
FB907
FB908
FB909
FB904
FB901
FB902
FB903
FL900
FB60
FB914
FB915
FB916
FB925
FB917
FB920
FB921
FB923
FB922
FB906
FB905
FB912
FB913
FB926
C960
C963
C973
R946
R952
R951
R956
R953
R958
R957
R961
R959
R962
R994
R988
R970
C961
R960
R955
R954
R945
R989
R967
R965
R964
R972
FB910
FB924
FB918
FB919
C915
R948
R949
R999
R971
D921
D920
D919
D918
D917
D911
D912
D910
D914
D913
C922
C922
D915
D916
C921
C920
IC2
• Refer to page 27 for Waveform.
4-15. SCHEMATIC DIAGRAM — DISPLAY SECTION — • Refer to page 41 for IC Block Diagrams.
Note:
• Voltage is dc with respect to ground under no-signal
(detuned) condition.
no mark : FM
no mark : FM
(Page 35)
40
40
CDX-M850MP
IC1 µPD63711GC-8EU (SERVO Board (1/2))
4-16. IC BLOCK DIAGRAMS
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
IC502 SAA6588T (MAIN Board (1/2))
IC301 BA8270F (MAIN Board (2/2))
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)
IC2 BA5810FP (SERVO Board (2/2))
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
1
2
3
4
5
5
6
7
8
9
10
14
13
12
11
BUS ON
SWITCH
RESET
SWITCH
BATTERY
SWITCH
BUSON
RST
BATT
CLK
VREF
GND
VCC
RST
BUSON
BUSON
CLK-IN
B/U-C
DATA IN
DATA OUT
DATA
I/O
I/O
IC307 BA6288FS (MAIN Board (2/2))
IC800 LM2577SX-ADJ (MAIN Board (2/2))
CONTROL
LOGIC
TSD
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
GND
NC
OUT1
M BATT
VCC
CLOSE
NC
NC
RNF
NC
OUT2
NC
VREF
OPEN
NC
NC
DRIVER
DRIVER
POWER
SAVE
1
2
3
4
5
SOFT
START
ERROR
AMP
1.25V
REF.
LOGIC
52kHz
OSCILLATION
CURRENT LIMIT,
THERMAL LIMIT,AND
UNDERVOLTAGE SHUTDOWN
DRIVER
STAGE
2.5V
REGULATOR
∑
COMPARATOR
CURRENT
SENSE
VOLTAGE
CURRENT
SENSE
REGISTOR
CORRECTIVE
RAMP VOLTAGE
AMP
ERROUT
ERRIN
GND
SWITCH
VDD
1
5
2
4
3
IN B
VCC
IN A
GND
OUT
IC12 TC7SH08FU (SERVO Board (2/2))
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