Sony CDX-RA650 / CDX-RA700 / CDX-RA750 Service Manual ▷ View online
21
21
CDX-RA650/RA700/RA750
CDX-RA650/RA700/RA750
3-3. BLOCK DIAGRAM — DISPLAY SECTION —
(Page 19)
(Page 20)
(Page 20)
KEY ACKNOWLEDGE
SWITCH
Q664
X502
32.678kHz
79
80
41
28
27
29
40
52
76
77
SYSTEM CONTROL
IC501 (3/3)
FL900
FLUORESCENT
INDICATOR TUBE
KEYIN0
GCP
SI1
MASTER TX
18
DISP RESET
MASTER RX
MASTER IF
KEYIN1
71 RCIN1
43 RCIN0
KEY ACK
XKEY ON
3 AREASEL0
88 SYS RST
RESET
2
1
XIN
XOUT
X501
18.432MHz
82
83 OSC IN
OSC OUT
X901
5MHz
13
12 X1
X2
S103
RESET
10
6
5
SI2
4
SI3
3
D501
D353
S961
OPEN
/CLOSE
CLK
11 LAT
12 BK
16 VDD2
1 F+
BU+3.3V
SYS RST
KEY MATRIX
5 NOSE SW
70 SYNCHRO SW
67 DISP FLASH W
S651
(OPEN/CLOSE)
RESET
IC602
IR
REMOTE CONTROL
SIGNAL RECEIVER
IC972
OUT
LSW901–915,918–921,
S915–918
VDD VOUT
13 VDD1
FL+3.3V
26
25
18
DISP RX
14 RESET
DISP TX
MAS IF
55
FL CKI3
42
FL CKI2
52
FL CKO1
37
LATCH
58
27
EDGE TGR1
EDGE TGR2
EDGE TGR2
GCP TGR3
GCP TGR4
GCP TGR4
39
BK
51
FL SO1
41
FL SO2
54
FL SO3
8 PVCC2
2 RT
ILL+B
50
46
30
5
GCP1
GCP2
GCP2
GCP3
GCP4
GCP4
47
11
2
45
4
57
1
BATT
BU IN
FL+3.3V
3
9
OPEN/CLOSE
MOTOR DRIVE
IC651
M904
(OPEN/CLOSE)
IN.1
4 IN.2
OUT.1
7
1
OUT.2
64 SIRCS
2
12 PVCC1
18 VCC
CD
SECTION
C
RESET
MAIN
SECTION
D
MAIN
SECTION
E
S501
FREQUENCY
SELECT
(
)
BU+3.3V
J370
(REMOTE IN)
RA750
LED961
PANEL+B
10K
9K
POWER
SWITCH
Q613,614
FL+3.3V
RESET
IC904
+4.8V REG
Q621
BATTERY
CHECK
Q5
FL POWER
DETECT
Q230
F–
D623,624
17
F–
18
ILL+B
BATT
FL+3.3V
REG
IC903
+3.3V REG
IC652
19
FL ON
10
FSW IN
66
FSW OUT
97
MON
20
DISP ON
98
MOTOR+
99
MOTOR–
100
MSW
FL DRIVE
IC901
DC–DC CONVERTER
IC620
GCP SELECT
IC902
FREQUENCY
CONTROL
SWITCH
Q620
NOSE SWITCH
CONTROL
Q2,8
LED DRIVE
Q903,904
SYNCHRO SWITCH
CONTROL
Q4,10
VCC
2 F+
ILL+B REG
Q7,9
BU+5V
PANEL+B
PANEL+B
BATTERY
CHECK
Q609,610
BATTERY
CHECK
Q611,612
D653–656
D626,630
FL POWER
CHECK
Q606,607
LSW901–915,
918–921
PANEL+B
OUT1 11
OUT2 9
RA750
RA650/RA700
ILL+B REG
IC10
BU+5V
DISPLAY
POWER
CONTROL
Q13,14
RA750
22
22
CDX-RA650/RA700/RA750
CDX-RA650/RA700/RA750
• 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 (1/3), (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/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.
• WAVEFORMS
— SERVO BOARD — (CD PLAY)
— MAIN BOARD —
3-4. CIRCUIT BOARDS LOCATION
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.
Q
C
These are omitted
E
B
E
These are omitted
C
B
C
These are omitted
B
E
MAIN board
PRESET board
BASE board
DISPLAY board
SENSOR board
SERVO board
tuner unit
(TU1)
(TU1)
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
9
(XTI)
0.5 V/DIV, 0.1
µ
sec/DIV
0.7 Vp-p
32.768 kHz
2
IC501
i;
(XOUT)
0.2 V/DIV, 0.1
µ
sec/DIV
1.8 Vp-p
18.432 MHz
3
IC501
id
(OSCIN)
1 V/DIV, 0.1
µ
sec/DIV
1.8 Vp-p
5 MHz
1
IC901
qd
(X2)
1 V/DIV, 0.1
µ
sec/DIV
— DISPLAY BOARD —
23
23
CDX-RA650/RA700/RA750
CDX-RA650/RA700/RA750
3-5. PRINTED WIRING BOARDS — CD MECHANISM SECTION — • Refer to page 22 for Circuit Boards Location.
: Uses unleaded solder.
(Page 27)
Ref. No.
Location
• Semiconductor
Location
IC1
G-2
IC2
B-11
IC3
D-2
IC6
D-1
Q2
C-1
Q3
C-2
Q21
B-4
1
A
B
C
D
E
F
G
H
2
3
4
5
6
7
8
9
10
11
12
13
14
SW3
SW2
1-864-903-
FMA4
FMA6
FMA3
FMA5
TP67
TP68
TP70
TP69
TP47
TP48
TP45
TP46
IC6
R6
R43
R35
C16
C70
C14
C29
C30
C68
C133
R10
C132
R16
R14
R15
C17
C72
R20
R5
R26
R147
Q3
R8
R133
R132
Q21
SW1
C66
C67
C48
C10
R27
R17
R81
C46
R33
R44
R23
R22
R58
R9
R62
R61
IC3
R2
R60
C7
R87
R86
R85
R144
R82
R141
R79
R25
R78
R77
R97
R98
R34
FB3
R55
FB2
C56
R24
Q2
IC1
C13
C80
C69
FB4
C18
R12
C71
C55
C54
R7
C31
C24
C15
R30
TP4
TP3
TP5
TP64
FMB3
FMB4
TP11
TP10
TP1
TP6
TP7
TP8
TP9
TP75
TP76
TP77
TP78
TP79
TP80
TP81
TP82
TP83
TP85
TP90
TP89
TP88
TP91
TP92
TP95
TP97
TP99
TP2
FMB5
IC2
TP86
TP87
TP84
TP98
TP14
TP15
TP65
TP61
TP62
TP51
TP71
TP72
TP74
TP63
TP28
TP22
TP21
TP96
TP42
TP43
TP44
TP29
TP34
TP35
TP30
TP12
TP24
TP25
TP31
TP13
TP38
TP41
TP49
TP50
TP53
TP32
TP33
TP36
TP37
TP39
TP52
BP60
TP23
X2
X1
TP26
TP27
BP10
R37
R36
R31
R32
R65
C40
C50
C23
R64
C60
R39
R63
X2
R54
C47
R53
R38
C43
R42
R52
C36
R28
CN2
R96
R41
C20
R84
R40
R83
R80
R75
R74
R69
R70
R73
R72
R71
R67
R68
C22
R57
C26
R21
C39
C62
C58
R13
CN1
R11
C11
C12
C53
C52
C49
C45
C44
C42
C41
C33
C32
C25
C19
R1
R18
R19
R29
C51
X1
16
24
24
CDX-RA650/RA700/RA750
CDX-RA650/RA700/RA750
(Page 25)
3-6. SCHEMATIC DIAGRAM — CD MECHANISM SECTION (1/2) — • Refer to page 22 for Waveforms.
R14
R15
IC6
R132
R133
C10
TP21
TP22
TP28
TP29
TP30
TP42
TP45
TP46
C39
R41
R40
R39
R38
R27
R25
R26
R24
R23
R22
TP33
TP32
TP37
TP36
R58
TP39
TP38
TP47
TP48
TP41
TP35
TP34
R42
TP50
TP49
TP23
TP24
TP25
TP26
TP27
TP52
TP31
R7
R10
R17
R18
C14
TP51
R57
R55
TP53
IC2
C12
C13
C17
C56
C54
C24
C55
C51
C50
C53
C47
C49
C46
C22
C20
R28
FB2
FB3
C31
C30
R36
R30
C42
C41
C72
C60
C43
C58
R29 R19
C132
C80
C133
C26
C25
C32
C33
R33
R31
R32
R34
C36
TP43
TP44
C29
C23
C40
R37
Q2
Q3
C15
R43
C44
R44
C45
R53
R52
R54
C18
C48
C52
C19
R13
R12
C16
R16
R11
C11
FB4
CN1
X2
Q21
R35
R20
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