Sony CDX-RA550 / CDX-RA650 Service Manual ▷ View online
17
17
CDX-RA550/RA650
CDX-RA550/RA650
3-1. BLOCK DIAGRAM — CD SECTION —
SECTION 3
DIAGRAMS
89
RFO
RF AMP,DIGITAL SERVO,
DIGITAL SIGNAL PROCESSOR
IC2
83
RFEQO
3
RFRP
6
TEI
81 RFI
82 RFRPI
82 RFRPI
2 RFZI
7 TEZI
9 F0O
PD1
PD2
E
F
I-V AMP
PD
LD
DETECTOR
88 AGCI
94
96
95
97
100
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
OPOUT3 22
12 FMO
OPOUT1 4
13 DMO
OPOUT2 7
MUTE 21
16
15
VO4–
VO4+
M903
(LOADING)
M901
(SPINDLE)
M902
(SLED)
FOCUS/TRACKING COIL DRIVE,
SLED/SPINDLE/LOADING
MOTOR DRIVE
IC1
51
PIO3
48
PIO0
36
MSTBY
58
ZDET
37
/RST
43
/CCE
42
BUCK
41
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
40
BUS2
10 CD BUS2
39
BUS1
8
CD BUS1
38
BUS0
7
CD BUS0
81 X1
80 X0
MEC LOAD
43
DRVON
6
MEC EJECT
44
CD
SYSTEM CONTROL
IC3
+1.5V REG
IC6
SYSTEM CONTROL
IC501 (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
CDON
1500MV
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
Q21
+1.5V ON/OFF
SWITCH
Q2,3
• R-ch is omitted due to same as L-ch.
24
23
X2
16.9344MHz
X1
12MHz
XI
XO
DISPLAY
SECTION
C
MAIN
SECTION
B
EJECT OK SW
UNI SI
UNI SO
59
LINK OFF
LINK OFF
ATT
UNI CLK
BUS ON
B/U CHECK
SYS RST
89
CD ON
VOUT
91
CDM ON
92
62
OPEN REQ
OPEN REQ
78
Z MUTE
MECHA+6V
93
68
CDON CHK
1
5
VDD
3
CE
D+3.3V
+1.5V
+1.5V
BU+3.3V
(Page 18)
(Page 18)
(Page 19)
18
18
CDX-RA550/RA650
CDX-RA550/RA650
3-2. BLOCK DIAGRAM — MAIN SECTION —
1 ANT
7 SE2L
ELECTRONIC VOLUME
IC401
J1
(ANTENNA)
TU1
(TUNER UNIT)
IC2-BUS CONTROLLED POWER AMP
/MULTIPLE VOLTAGE REGULATOR
IC300
SYSTEM CONTROL
IC501 (2/3)
CN300
8 SE2R
25 SAIN
26 SAOUT
BATT
9 SE1L
10 SE1R
11 DIFFL
13 DIFFR
R-CH
4
3
3
10
VCC+8.5V
11
VDD+5V
15
E2P VDD
13
TU-SCL
14
TU-SDA
6
S-METER
7
TU MUTE
16
E2P SCL
17
E2P SDA
39 VSM
17 AUX IN
44 SA CLK
45 SA IN
AUDIO+8.3V
TU+5V
BU+3.3V
BU+3.3V
RA550
12 TU ATT
25 EEP CKO
24 EEP SIO
24 EEP SIO
8
MUTE CONDITION
5
QUALITY
RDS OUT
53 TU ATT IN
38
38
13
QUALITY
NS MASK
DAVN
RDS ON
L-CH
R-CH
AUX
SELECT
SWITCH
Q351
R-CH
16
28
28
OUTLR2
OUTRR2
R-CH
L
R
5
3
3
OUT FL+
OUT FL–
9
7
7
OUT RL+
OUT RL–
29
35
27
AMP-REM
R-CH
ANT-REM
BATT
20
6
30
37
37
AUDIO+B
B.U+B
VP
VP1
VP2
31
33
33
SERVO3.3V
MECHA6V
34
PANEL+B
TU+5V
21
MUTE
2 SDA
AUDIO+8.3V
BU+5V
SERVO+3.3V
MECHA+6V
MECHA+6V
PANEL+B
4 SCL
SDA
SCL
16 BEEP
22 STB
25 DIAG
25 DIAG
AUDIO+8.3V
15
7
10
12
11
16
1
9
2
4
3
5
6
22
23
23
SCL
SDA
SCL
SDA
SCL
SDA
SCL
SDA
SDA
33
I2C CKO
34
I2C SIO
9
VOL ATT
86
ATT
5
BEEP
26
AMP STB
8
DIAG
73
30
UNISO
RESET
BUS ON
UNICLK
UNISI
B/U CHECK
LINK OFF
ATT
56
TEST IN
12 IN FL
FL+
FL–
RL+
RL–
FR+
FR–
RR+
RR–
AMP-REM
ANT-REM
ACC
TEST
11 IN RL
19
OUTLR1
MUTE
Q432
MUTE DRIVE
Q491,492
NS MASK
CONTROL
Q1
RDS DEMODULATOR
IC50
72
74
ACC IN
TEL ATT
ACCESSORY
CHECK
Q702
BUS ON
SWITCH
Q601
LINK
SWITCH
Q600
TU+5V REG
Q3
BU+3.3V
BU+5V
+3.3V REG
IC681
ILLUMINATION CHECK
Q703
MUTE
Q470
13
TEL-MUTE
14
ILL
D491
D493
F901
3
6
5
4
2
8
7
BATT
BATT
BATT
6
DATA I/O
4
CLK
2
RST
1
BUS ON
BATTERY CHECK
Q605
BUS INTERFACE
IC601
D602
CNJ400
TH400
BUS
CONTROL
IN
CD
SECTION
B
D609
11
12
9
10
16
1
7
XTI
SCL
SCL
BU+3.3V
SDA
SDA
INTN
XTO
MPX
VDDA
VDDD
TEL ATTENATION
CHECK
Q701
RDS POWER
CONTROL
Q50
9
15
X50
8.664MHz
R-CH
20
17
17
OUTLF
OUTRF
R-CH
L
R
MUTE
Q440
REAR
FRONT
54
BU IN
58
UNISI
59
UNISO
60
UNISCK
87
BUSON
R-CH
75
ILLIN
RST
13
BUS IN
12
CLK IN
11
DATA OUT
8
B/U-C
10
DATA IN
9
DISPLAY
SECTION
D
CD-L
CD
SECTION
A
BATTERY CHECK
DISPLAY
SECTION
E
AUDIO
OUT
J652
(2/2)
(2/2)
R-CH
L
R
BUS
AUDIO
IN
J652 (1/2)
• Signal Path
• R-CH is omitted due to same as L-CH.
: CD PLAY
: FM
: AUX
: AM/MW/LW
(Page 17)
(Page 19)
(Page 17)
(Page 19)
19
19
CDX-RA550/RA650
CDX-RA550/RA650
3-3. BLOCK DIAGRAM — DISPLAY SECTION —
(Page 17)
KEY ACKNOWLEDGE
SWITCH
Q664
X502
32.678kHz
79
80
41
28
29
27
40
52
76
77
SYSTEM CONTROL
IC501 (3/3)
FL901
FLUORESCENT
INDICATOR TUBE
KEYIN0
CLK
CS
FLS SO
FLS CKO
FLS CS
KEYIN1
71 RCIN1
43 RCIN0
KEY ACK
XKEY ON
3 AREASEL0
NOSE DET
88 SYS RST
RESET
77
2
1
XIN
XOUT
X501
18.432MHz
82
83 OSC IN
OSC OUT
S103
RESET
12
13
11
D501
D353
S961
OPEN
/CLOSE
DIO
5
37
36 VDD(3.3V)
6
7
8 GRID3
9 GRID2
10 GRID1
1G
2G
3G
3G
VH(+16V)
BU+3.3V
SYS RST
KEY MATRIX
70 SYNCHRO SW
S650
(OPEN/CLOSE)
RESET
IC602
IR
REMOTE CONTROL
SIGNAL RECEIVER
IC972
OUT
LSW903–914,916–921,923
S915–918
VDD VOUT
8
1
FL POWER CONTROL
IC22
VIN
5 CONT
VOUT
1 IN
2 FB
2 FB
5 V IN
5 V IN
4
OUT
7 CT
BATT
D20
4
OUT
BATT
PANEL+B
BATTERY CHECK
3
9
OPEN/CLOSE
MOTOR DRIVE
IC40
M901
(OPEN/CLOSE)
IN.1
+
–
4 IN.2
OUT.1
7
1
OUT.2
64 SIRCS
2
CD
SECTION
C
RESET
MAIN
SECTION
D
MAIN
SECTION
E
S502
FREQUENCY
SELECT
(
)
BU+3.3V
J370
(REMOTE IN)
RA650
BATT
LED961
(CD SLOT)
LSW903–914,
916–921,923
PANEL+B
PANEL+B
10K
9K
POWER
CONTROL
Q20,21
FL+9V REG
Q25,28
BATTERY
CHECK
Q24
FL POWER
CONTROL
Q26,27
F+
1
F+
2
F–
47
F–
48
FL DRIVE
Q891
FL DRIVE
Q892
FL DRIVE
Q893
2 FB
1 IN
7 CT
FL+6V REG
Q40,41
+3.3V REG
IC971
96
DDON
18
FSW OUT
10
FSW IN
BATT
19
FL ON
97
MON
98
MOTOR+
99
MOTOR–
100
MSW
FL+9V
DC/DC
CONVERTER
IC21
DC/DC
CONVERTER
IC20
FREQUENCY
CONTROL
Q22,23
FL POWER
CHECK
Q29
VCC
(Page 18)
(Page 18)
20
20
CDX-RA550/RA650
CDX-RA550/RA650
• NOTE FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS
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 (1/2) and (2/2) sections
no mark : CD PLAY
• Main (1/4), (2/4), (3/4), (4/4) and Display sections
no mark : FM
no mark : CD PLAY
• Main (1/4), (2/4), (3/4), (4/4) and Display sections
no mark : FM
(
) : AM/MW/LW
<
> : 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/MW/LW
L
: AUX
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
• WAVEFORMS
— SERVO BOARD — (CD PLAY)
— MAIN BOARD —
1
IC2
5
(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
ia
(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
1.1 Vp-p
8.664 MHz
1
IC50
0
(XTO)
0.5 V/DIV, 0.2
µ
sec/DIV
0.7 Vp-p
32.768 kHz
2
IC501
i;
(XOUT)
0.2 V/DIV, 20
µ
sec/DIV
1.1 Vp-p
18.432 MHz
3
IC501
id
(OSCIN)
0.5 V/DIV, 0.1
µ
sec/DIV
3-4. CIRCUIT BOARDS LOCATION
MAIN board
PRESET board
BASE board
DISPLAY board
SENSOR board
SERVO board
tuner unit
(TU1)
(TU1)
Note: The components identified by mark
0
or dotted line
with mark
0
are critical for safety.
Replace only with part number specified.
Click on the first or last page to see other CDX-RA550 / CDX-RA650 service manuals if exist.