Sony CDX-MP80 Service Manual ▷ View online
25
25
CDX-MP80
SERVO board
MAIN board
KEY board
SWITCH board
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
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.
4-5. CIRCUIT BOARDS LOCATION
• Waveforms
— Servo Board —
(MODE: CD PLAY)
1
IC2
qg
(RFAC)
0.7Vp-p
2
Approx. 200mVp-p
IC2
qh
(FE)
0V
3
Approx. 600mVp-p
IC2
qk
(TE)
0V
5
6
7
IC1
o;
(BCK)
3Vp-p
8
12.288MHz
IC11
yg
(XTXAL)
2.2Vp-p
3.5Vp-p
16.9344MHz
IC1
of
(XTAO)
3.8Vp-p
474msec
4
IC1
rd
(MDP)
3.3Vp-p
IC1
ih
(LRCK)
7.6µsec
22.7µsec
—
Main Board
—
1
2
3.68MHz
IC501
os
(XO)
32.768kHz
IC501
uf
(XOA)
3Vp-p
3
18.432MHz
IC702
ih
(EXTAL)
4
4.332MHz
IC202
4
(OSCD)
2.2Vp-p
1.2Vp-p
5.2Vp-p
—
Key Board
—
1
4MHz
IC903
4
(XOUT)
2.2Vp-p
26
26
CDX-MP80
4-6. PRINTED WIRING BOARD — CD MECHANISM SECTION — • Refer to page 25 for Circuit Boards Location.
Ref. No.
Location
D3
G-10
D4
J-6
D5
J-2
D6
J-9
D18
I-9
D19
I-9
D22
I-8
IC4
H-2
IC10
H-3
IC11
I-5
IC13
H-4
IC14
I-5
Q3
G-10
Q5
G-9
Q6
G-9
• Semiconductor
Location
1
A
B
C
D
E
F
G
H
I
J
2
3
4
5
6
7
8
9
10
11
TP4
TP2
C53
R132
R102
IC14
C79
C59
L2
TP78
TP75
TP74
TP73
TP59
TP58
R105
R104
IC13
C39
D6
TP72
X2
TP40
TP39
R134
R137
R135
C75
R92
IC11
R69
C54
IC4
R140
C51
R81
L6
D4
C56
C57
IC10
L1
C48
L3
R116
C66
C72
C36
R113
R111
R115
R109
R90
R88
R91
R85
R89
R83
R70
R142
R86
R72
R25
R97
CN4
M3
TP102
D22
TP101
TP56
C60
C29
C31
C28
C45
R99
TP71
TP70
TP69
R77
R41
C25
C34
C47
C38
R59
C21
R154
R34
R27
R26
C50
L7
X1
C67
D3
TP1
TP5
C27
TP7
C73
R21
R71
C35
R28
R100
C62
TP35
TP37
TP42
C26
R60
R55
R61
C77
TP50
TP49
Q6
R74
C68
C76
TP17
R43
R44
R46
R51
R50
C74
R48
C32
Q5
TP67
TP18
TP30
TP36
TP38
TP43
TP44
TP45
TP46
TP48
TP51
TP84
TP85
TP86
D5
FB2
R156
R133
Q3
D19
D18
C96
L11
C91
L4
L5
TP80
27
27
CDX-MP80
Ref. No.
Location
D2
F-1
D7
F-10
D8
H-6
D9
E-8
D14
D-7
D15
D-7
D16
D-7
D17
E-7
D25
A-6
D26
A-6
IC1
H-8
IC2
E-9
IC3
C-8
IC5
H-2
IC6
I-7
IC7
B-7
IC8
D-7
IC9
G-9
IC12
I-2
IC15
G-3
Q1
B-6
Q2
F-8
• Semiconductor
Location
1
A
B
C
D
E
F
G
H
I
J
2
3
4
5
6
7
8
9
10
11
R136
C63
TP83
TP82
TP81
TP79
TP77
TP76
TP57
IC8
R120
C114
D2
TP54
TP53
BP15
BP16
R68
C65
C55
IC5
TP13
TP10
R138
R141
R143
R121
R129
CN6
CN7
C82
SW1
L8
C58
D8
R122
R67
R144
R124
R117
R127
R123
R131
R125
C112
C101
R130
R139
R87
TP9
R84
R82
C107
C2
C6
TP103
C109
IC1
TP19
TP8
R16
R96
R3
C14
CN1
BP2
BP3
BP4
R49
R47
R32
C42
TP26
TP25
D9
C19
C17
R30
R24
R29
R22
TP24
TP23
TP22
TP11
C23
R5
R7
R17
C10
C9
R18
R12
R14
R15
R13
R78
R8
R10
D7
R9
R6
C37
R19
R93
R4
C4
R2
C64
TP104
Q2
Q1
TP20
TP12
C70
TP3
R107
CN3
CN2
TP27
R118
R11
C110
C111
TP29
TP16
TP15
TP31
TP105
TP33
C1
R58
TP21
TP41
SW2
SW3
R20
TP14
TP61
TP60
R75
R64
C40
R56
C43
R62
C121
TP64
TP63
TP6
TP62
IC2
IC3
TP55
IC9
IC7
BP1
R45
C3
C12
C30
C16
TP65
C108
R1
C71
R79
C5
R95
C7
R94
C8
R35
C15
C13
R23
R38
C22
R54
TP68
TP66
TP28
TP32
TP34
TP47
TP52
R36
C49
IC6
C90
IC15
FB1
R152
R119
C93
R164
R163
R162
R157
R158
R159
R160
D17
D16
D15
D14
D25
D26
TP87
TP88
C122
C123
C124
SW4
L10
L12
L13
R166
IC12
C61
C89
R31
TP90
TP89
(Page 30)
28
28
CDX-MP80
• Refer to page 25 for Waveforms.
4-7. SCHEMATIC DIAGRAM — CD MECHANISM SECTION (1/2) — • Refer to page 38 for IC Block Diagrams.
Note:
• Voltage is dc with respect to ground under no-signal
conditions.
no mark : CD PLAY
no mark : CD PLAY
∗
: Impossible to measure
IC B/D
IC B/D
IC B/D
IC B/D
IC B/D
IC B/D
IC B/D
IC7
C1
C12
TP1
TP3
TP5
TP7
TP9
TP10
TP11
TP12
TP24
TP25
TP21
TP22
TP23
IC1
C19
R32
R38
C17
C15
C4
C5
C13
C22
C23
C26
R41
C27
C29
C28
R49
R48
R47
C30
R50
R51
C74
R55
R59
R60
R61
C47
C110
C109
R1
R2
C2
C67
C10
TP60
TP61
TP62
TP63
TP64
TP65
TP66
TP67
TP68
TP69
TP70
TP71
R97
R74
Q5
R71
C16
C68
TP41
TP42
TP49
TP50
TP55
TP56
R34
R35
TP103
IC9
C70
R99
R77
C25
C107
C36
C77
IC2
C64
C48
R56
R58
R62
R64
IC3
R54
FB1
C58
R118
R163
R164
C38
FB2
C34
C90
R11
R5
R6
R8
R19
R20
R93
R94
R15
TP87
TP88
C111
D25
D26
C96
R24
R156
D9
D18
D19
D22
R21
R23
R22
R78
C8
L12
L13
C123
C124
IC8
L10
C121
C122
C9
L1
C21
C76
C60
C62
C50
L3
L7
L11
C40
C43
C91
TP27
TP29
TP31
TP33
TP105
TP102
TP101
BP1
TP15
TP6
BP4
BP3
TP19
TP20
TP8
BP2
TP16
TP104
TP14
C71
L8
C45
C35
TP26
C32
R46
C31
R45
L2
R13
R12
R14
R16
R18
R17
R79
R10
R9
R7
C14
R96
R4
R3
R95
C7
R44
R43
R100 R107
D3
R28
C73
R25
R26
R27
R72
R29
R30
R31
R157
R158
R159
R160
D14
D16
D15
D17
R162
M1
M2
Q3
Q1
Q2
Q6
C6
C37
C3
CN1
C108
IC6
X1
CN2
CN3
(Page 29)
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