Sony CDX-CA900 / CDX-CA900X Service Manual ▷ View online
21
21
CDX-CA900/CA900X
3-5. BLOCK DIAGRAM — DISPLAY SECTION —
8
9
11
10
4
2
1
3
5
4
6
8
7
BUS ON
SW
Q603
BUS INTERFACE
IC601
BATT
CN601
(BUS CONTROL IN)
6
13
2
RESET
12
1
BUS
ON
DATA
CLK
3
BATT(L)
CHECK
BUF
IC702
7
6
85
86
XTAL
LINK OFF
RST
BU IN
BUS ON
UNI SCK
UNI SI
UNI SO
EXTAL
64
119
118
120
106
SCK
66 CEL
52
ILL ON
62
DOOR SW/RX
57
BOOT
SA CLK
SA IN
SA CLK
SA OUT
60
LCD SO/TX
POWER
CONTL
Q702,703
KEY IN
MATRIX
AD ON
CONTROL
Q701
BU +5V
BU +5V
FLS SO
FLS SI
BOOT
98
1
112
101
38
34
81
50
97
SUB SYSTEM CONTROL
IC701
RST 63
TUNER
SECTION
B
POWER
CONT
Q705,706
1
3
KEY IN0
46
RC IN1
107
KEY ACK
80 AD ON
72
SYSRST
22
BU IN
77
BUS ON
14
UNI CKO
19
UNI SO
18
UNI SI
17
RC IN0
48
12
57
13
SIRCS 24
RSTX 90
HSTX 86
SYSTEM CONTROL
IC501 (3/3)
J651
(REMOTE IN)
IC502
RESET
OUT
XIN
XOUT
RESET
7
16
SIRCS CONTROL
IC903
17
9
3
4
6
NOSE DET
81
DOOR IND
BATT
58
S102
(NOSE)
S101
RESET
BATT
BATT
LCD
CLK
DIMMER
CE
DATA
LCD DRIVER
IC901
BATT
CHECK(H)
Q602
LED900
IC902
BATT
DIMMER
CONTROL
Q901
X701
18.432MHz
X910
4MHz
AEP, UK, E MODEL
LCD
LCD901
(Page 20)
Ver 1.1
22
22
CDX-CA900/CA900X
1
A
B
C
D
E
F
G
H
I
J
2
3
4
5
6
7
8
9
10
11
12
13
14
3-6. PRINTED WIRING BOARDS — CD MECHANISM SECTION — • Refer to page 18 for 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.
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 diagram:
• All capacitors are in µF unless otherwise noted. pF: µµF
• All capacitors are in µF unless otherwise noted. pF: µµF
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.
•
%
: indicates tolerance.
•
f
: internal component.
•
C
: panel designation.
•
A
: B+ Line.
• Power voltage is dc 14.4V and fed with regulated dc power
supply from ACC and BATT cords.
• 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.
F
: FM
f
: AM/MW/LW
J
: CD
• Abbreviation
CND : Canadian model.
for printed wiring boards:
• X
: parts extracted from the component side.
• Y
: parts extracted from the conductor side.
•
x
: parts mounted on the conductor side.
•
a
: Through hole.
•
: Pattern from the side which enables seeing.
(The other layer’s patterns are not indicated.)
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.
• Abbreviation
CND : Canadian model.
23
23
CDX-CA900/CA900X
1
A
B
C
D
E
F
G
H
I
J
2
3
4
5
6
7
8
9
10
11
12
13
14
+
-
+
-
TP8
C4
C26
TP1
TP2
TP3
TP4
TP5
TP87
TP86
TP57
TP77
TP11
TP79
TP83
TP70
TP10
TP9
TP27
TP12
TP78
TP31
TP81
TP84
TP54
TP25
TP24
TP37
TP39
TP36
TP38
TP40
TP45
TP22
TP88
TP41
TP46
TP30
TP21
TP17
TP20
TP42
C44
TP19
TP28
TP90
C41
TP29
TP15
TP33
TP73
TP14
TP18
TP48
TP71
TP51
TP49
TP52
TP55
TP75
TP53
TP56
TP43
TP58
TP61
TP74
TP60
TP68
TP80
TP7
TP62
TP91
TP63
TP66
TP64
TP69
TP72
TP50
TP26
TP32
TP59
TP76
BP4
BP3
BP1
BP2
R8
R9
R5
R7
R12
R14
R15
R10
R17
R18
R19
R20
R22
TP92
FB5
C3
C5
C6
C8
C9
C10
C11
C13
C14
C16
C18
C19
C24
C25
C29
C34
C36
C38
C35
C22
C30
TP6
C23
C1
C27
R21
TP47
C15
C20
TP35
TP23
R6
C17
TP82
TP44
Q1
R26
TP34
TP89
R3
TP16
TP85
R31
CN1
IC1
IC2
C43
R30
R29
CN3
X1
C70
C71
CN2
(Page 31)
Ref. No.
Location
IC1
E-7
IC2
H-7
Q1
C-6
• Semiconductor
Location
24
24
CDX-CA900/CA900X
IC B/D
IC B/D
TP77
TP78
R29
R30
C43
TP79
TP80
TP80
TP81
TP82
TP82
TP83
TP84
TP84
CN2
CN3
SW3
M902
M901
SW2
SW1
TP5
TP4
TP1
TP2
TP3
M903
TP87
TP86
TP9
TP8
R3
R26
C4
TP10
C13
R5
C11
C10
C8
TP7
TP92
R6
TP15
TP14
TP17
TP20
TP16
TP16
TP19
TP21
TP18
BP4
BP3
R7
C17
TP11
TP12 C9
C14
TP89
C19
C20
C23
R9
R8
TP22
TP23
TP24
TP25
TP88
C26
TP31
BP1
BP2
TP33
TP32
R14
R15
TP30
R12
R10
TP91
TP90
TP29
TP28
TP26
TP27
R21
R22
R31
C44
TP34
TP35
TP36
TP46
TP37
TP38
TP39
TP40
TP41
TP42
TP43
TP44
TP45
CN1
R18
R19
R20
R17
TP66
TP62
TP47
TP63
TP48
TP49
TP64
TP50
TP51
TP52
TP68
TP53
TP69
TP54
TP70
TP55
TP71
TP56
TP72
TP57
TP73
TP58
TP74
TP59
TP75
TP60
TP76
TP61
IC1
X1
C1
C5
C3
C6
TP93
TP94
TP94
TP95
TP96
TP96
TP97
TP98
TP98
TP85
C15
C16
C70
C24
C35
C38
C36
FB5
C25
C34
C71
C29
C27
C41
C22
C30
C18
Q1
IC2
CN1
SW4
• Refer to page 18 for Waveforms.
3-7. SCHEMATIC DIAGRAM — CD MECHANISM SECTION — • Refer to page 34 for IC Block Diagrams.
(Page 27)
Note:
• Voltage is dc with respect to
ground under no-signal conditions.
no mark : CD PLAY
no mark : CD PLAY
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