Sony CDX-F50M Service Manual ▷ View online
13
13
CDX-F50M
CDX-F50M
3-1. BLOCK DIAGRAM — CD SECTION —
79
RFO
RF AMP,DIGITAL SERVO,
DIGITAL SIGNAL PROCESSOR
IC2
87
RFEQO
3
RFRP
6
TEI
85
RFI
86
RFRPI
1 RFZI
7 TEZI
9 F0O
PD1
PD2
E
F
I-V AMP
PD
LD
DETECTOR
77
AGCI
78
RFDCI
94
96
95
97
99
98
TNI
FPI1
FNI1
FPI2
FNI2
TPI
91 LDO
92
MDI
(FOCUS)
(TRACKING)
2-AXIS DEVICE
OPTICAL
PICK-UP BLOCK
(KSS1000E)
• Signal Path
: CD PLAY
LASER DIODE
M
M
M
18
17
VO3–
VO3+
14
13
VO1+
VO1–
12
11 VO2–
VO2+
10
9
VOL+
VOL–
FWD
REV
1
28
OPIN4– 26
OPOUT4 25
10 TRO
OPIN3– 23
46 IO0(/HSO)
OPOUT3 22
12 FMO
OPOUT1 4
13 DMO
OPIN2 7
47 IO1(/UHSO)
MUTE 21
16
15
VO4–
VO4+
M903
(LOADING)
M901
(SPINDLE)
M902
(SLED)
FOCUS/TRACKING COIL DRIVE,
SLED/SPINDLE/LOADING
MOTOR DRIVE
IC1
56
MUTE
53
REQ
43
STBY
18
ZDET
42
/RST
41
/CCE
40
BUCK
39
BUS3
CD-L
MAIN
SECTION
A
30
LO
27
RO
R-CH
27 DEC SSTBY
15 CD ZDET
15 CD ZDET
14 CD XRST
13 CD XCCE
53 MEC_SELFSW
45 MEC_INSW
42 MEC_LIMIT
12 CD BUCK
11 CD BUS3
38
BUS2
10 CD BUS2
37
BUS1
8
CD BUS1
36
BUS0
7
CD BUS0
14
SBSY
52 CD SBSY
81 X1
80 X0
MEC LOAD
43
MEC EJECT
44
CD
SYSTEM CONTROL
IC3
+1.5V REG
IC6
SYSTEM CONTROL
IC801 (1/3)
37 DEC XMUTE
30 DEC INT
SW2
(SELF)
46 MEC_DSW
SW1
(DOWN)
SW3
(DISC IN)
SW4
(LIMIT)
56
UNISI
25
RXD
57
UNISO
58
UNICKI
50
BUS ON
51
BU IN
75
RSTX
61
EJECT OK
67
MECON CHK
1
1.5V ON
63
MECON
64
CDON
66
ZMUTE
60
A ATT
26
TXD
PD1
E
F
LD
MON OUT
FCS+
FCS–
TRK+
TRK–
PD2
AUTOMATIC
POWER
CONTROL
Q1
+1.5V ON/OFF
SWITCH
Q2,3
• R-ch is omitted due to same as L-ch.
24
23
X2
16.934MHz
X1
12MHz
XI
XO
MAIN
SECTION
B
EJECT OK
UNI SI
UNI SO
ATT
59
LINK OFF
LINK ON/OFF
UNI CLK
BUS ON
B/U CHECK
SYS RST
97
CD ON
VOUT
94
CDM ON
95
62
OPEN REQ
OPEN REQ
54
Z MUTE
MECHA+6V
89
68
CDON CHK
1
5
VDD
3
CE
SERVO+3.3V
+1.5V
+1.5V
U COM+3.3V
(Page 14)
SECTION 3
DIAGRAMS
(Page 14)
14
14
CDX-F50M
CDX-F50M
1 ANT
7 SE2L
ELECTRONIC VOLUME
IC401
PJ601
(ANTENNA)
TUX601
(TUNER UNIT)
POWER AMP
IC100
GROUND SWITCH
Q301
SYSTEM CONTROL
IC801 (2/3)
CNP901
8 SE2R
R-CH (FRONT)
R-CH (REAR)
R-CH (REAR)
BATT
9 SE1L
10 SE1R
4
3
3
10
VCC
11
TU VDD
15
E2P VDD
13
TU-SCL
14
TU-SDA
6
S-METER
7
TU MUTE
16
E2P SCL
17
E2P SDA
45 VSM
AU+8V
TU+5V
U COM+3.3V
U COM+3.3V
15 TU ATT
25 EEP SCK
24 EEP SIO
24 EEP SIO
L
R
CD-L
R-CH
11 DIFEL
13 DIFFR
R-CH
R-CH
L
R
5
3
3
LF+
LF–
9
7
7
LR+
LR–
29
27
27
SW1
R-CH
SW2
35
VP
20
VP1
6
VP2
BATT
30
37
37
REG1
REG2
31
33
33
REG3
REG4
34
REG5
TU+5V
17
18
18
OUTRF
OUTRR
21
MUTE
2 SDA
AU+8V
U-COM+5V
SERVO+3.3V
MECHA+6V
MECHA+6V
DISP+B
4 SCL
SDA
SCL
16 ACGND
22 STB
25 DIAG
25 DIAG
AU+8V
15
13
7
10
12
11
16
1
9
2
4
3
5
6
22
23
23
SCL
SDA
SCL
SDA
25
SAIN
DATA
26
SAOUT
CLK
SCL
SDA
SCL
SDA
33
IIC SCK
26
SA CLK
40
SA DATA
34
IIC SIO
6
VOL ATT
1
ATT
5
BEEP
31
STB
56
DIAG
53
BU IN
RESET
SYS RST
BUS ON
UNI CLK
UNI SO
UNI SI
B/U CHECK
A ATT
LINK ON/OFF
67
TEST IN
12 FL
FL+
FL-
RL+
RL-
FR+
FR-
RR+
RR-
AMP-REM
ANT-REM
ACC
TEST
20
OUTLF
11 RL
19
OUTLR
MUTE
Q405
MUTE
Q407
FRONT
AUDIO OUT
MUTE CONTROL
Q400,401
58
UNI SI
59
UNI SO
60
UNI SCK
61
BUS ON
62
SYS RST
10 B/U-C
8 DATA OUT
9 DATA IN
11 CLK IN
12 BUSON
13 RST
3
5
4
7
6
2
1
3
BATT
6
DATA I/O
4
CLK
1
BUS ON
2
RST
64
ACC IN
32
AUX
ACC CHECK
Q900
TU+5V REG
Q601
U-COM+3.3V
BATT
U-COM+5V
BATT
+3.3V REG
IC803
BATTERY CHECK
Q902
BUS ON
CONTROL
Q905
BUS INTERFACE
IC900
MUTE
Q404
ATT
63
TEL ATT
TEL ATT CHECK
Q901
14
ILL
7
ILL
ILL CHECK
Q912
CLK
DATA
D400
F900
R-CH
16
28
28
RL
RR
R-CH
L
R
REAR
AUDIO IN
PJ401
R-CH
L
R
BUS
AUDIO IN
BUS
CONTROL IN
D702
D701
D804
D858
D818
D857
D912
CD
SECTION
A
DISPLAY
SECTION
C
CD
SECTION
B
TH900
CNJ900
8
BATT
LINK ON/OFF
CONTROL
Q903,904
• Signal Path
• R-CH is omitted due to same as L-CH.
: CD PLAY
: FM
: AM
: BUS AUDIO/AUX
3-2. BLOCK DIAGRAM — MAIN SECTION —
(Page 13)
(Page 15)
(Page 13)
15
15
CDX-F50M
CDX-F50M
KEY
ACKNOWLEDGE
SWITCH
Q800
X801
32.768kHz
79
80
82
83
38
28
29
27
39
47
75
74
41
77
LCD DRIVER
IC901
KEYIN0
CLK
CE
LCD SO
LCD SCK
LCD CE
DIMMER
KEYIN1
KEY ACK
DISP+B
BATT
XKEY ON
RCIN1
RCIN0
46 DST SEL
SUB+B
RESET
NOSE SW
2 IN
1
OUT
X1A
X0A
X0
X1
X800
18.432MHz
S802
RESET
77
78
76
79
COM1
COM4
LCD901
LIQUID
CRYSTAL
DISPLAY
PANEL
LED902,905
LCD
BACK LIGHT
D801
D810
D805
U COM+3.3V
S800
FREQUENCY
SELECT
9K
10K
R809
R808
CNP900
(REMOTE IN)
7
|
64
65
|
68
|
SEG9
SEG66
|
CL
DI
CE
DISP+B
65
SIRCS
RESET
73
DOOR IND
1
VCC
IR
LED907,908,
910-918,
921-923,927
LED930,931
REMOTE CONTROL
SIGNAL RECEIVER
IC951
2 OUT
U COM+3.3V
(
)
KEY MATRIX
S901-919,931,
RE901(2/2)
21
22
SYSTEM CONTROL
IC801 (3/3)
RE0
RE1
DIMMER
CONTROL
Q501
ROTARY
ENCODER
RE901(1/2)
69
S801
(NOSE DET)
RESET
IC802
DOOR INDICATOR
B+ SWITCH
Q801,802
DIMMER
MAIN
SECTION
C
R800
3-3. BLOCK DIAGRAM — DISPLAY SECTION —
3-4. CIRCUIT BOARDS LOCATION
MAIN board
RELAY board
DISPLAY board
SENSOR board
SERVO board
SPEAKER board
tuner unit
(TUX601)
(TUX601)
(Page 14)
16
16
CDX-F50M
CDX-F50M
• NOTE FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS
• WAVEFORMS
— MAIN BOARD —
1
IC2
4
(FEI)
Approx.
1Vp-p
1Vp-p
0 V
0.6 Vp-p
16.9344 MHz
Approx. 100 mVp-p
50 mV/DIV, 5 msec/DIV
0.5 V/DIV, 0.5
µ
sec/DIV
2
IC2
6
(TEI)
200 mV/DIV, 5 msec/DIV
6
IC2
oh
(FPI2),
0.5 V/DIV, 0.5
µ
sec/DIV
Approx. 400 mVp-p
3
IC2
wd
(XI)
0.2 V/DIV, 0.2
µ
sec/DIV
7
IC3
ia
(X1)
0.5 V/DIV, 0.2
µ
sec/DIV
1.1 Vp-p
12 MHz
4
IC2
uj
(RFI)
0.5 V/DIV, 0.5
µ
sec/DIV
5
IC2
of
(FNI2),
og
(FNI1)
1.5 Vp-p
oj
(FPI1)
1.5 Vp-p
0 V
0.8 Vp-p
32.768 kHz
1
IC801
i;
(XOA)
0.2 V/DIV, 20
µ
sec/DIV
1.2 Vp-p
18.432 MHz
2
IC801
id
(X1)
0.5 V/DIV, 0.1
µ
sec/DIV
— SERVO BOARD —
(CD PLAY)
THIS NOTE IS COMMON FOR PRINTED WIRING
BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is printed
in each block.)
BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is printed
in each block.)
For schematic diagrams.
Note:
• All capacitors are in µF unless otherwise noted. (p: pF)
• All capacitors are in µF unless otherwise noted. (p: pF)
50 WV or less are not indicated except for electrolytics
and tantalums.
and tantalums.
• All resistors are in
Ω
and
1
/
4
W or less unless otherwise
specified.
•
f
: internal component.
•
C
: panel designation.
For printed wiring boards.
Note:
• X
: parts extracted from the component side.
• Y
: parts extracted from the conductor side.
•
a
: Through hole.
•
: Pattern from the side which enables seeing.
(The other layers' patterns are not indicated.)
•
A
: B+ Line.
•
B
: B– Line.
•
H
: adjustment for repair.
• Voltages and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
• CD mechanism section (1/2), (2/2)
no mark : CD PLAY
• Main (1/3), (2/3), (3/3) and Display sections
no mark : FM
no mark : CD PLAY
• Main (1/3), (2/3), (3/3) and Display sections
no mark : FM
(
) : AM
<
> : CD PLAY
∗
: Impossible to measure
• Voltages are taken with a VOM (Input impedance 10 M
Ω
).
Voltage variations may be noted due to normal produc-
tion tolerances.
tion tolerances.
• Waveforms are taken with a oscilloscope.
Voltage variations may be noted due to normal produc-
tion tolerances.
tion tolerances.
• Circled numbers refer to waveforms.
• Signal path.
J
: CD PLAY
F
: FM
f
: AM
L
: BUS AUDIO
Caution:
Pattern face side: Parts on the pattern face side seen from the
(Side B)
Pattern face side: Parts on the pattern face side seen from the
(Side B)
pattern face are indicated.
Parts face side: Parts on the parts face side seen from the
(Side A)
(Side A)
parts face are indicated.
Q
C
These are omitted
E
B
E
These are omitted
C
B
C
These are omitted
B
E
Note:
The components identi-
fied by mark
The components identi-
fied by mark
0
or dotted
line with mark
0
are criti-
cal for safety.
Replace only with part
number specified.
Replace only with part
number specified.
Note:
Les composants identifiés par
une marque
Les composants identifiés par
une marque
0
sont critiques
pour la sécurité.
Ne les remplacer que par une
piéce portant le numéro
spécifié.
Ne les remplacer que par une
piéce portant le numéro
spécifié.
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