Sony CDX-MP80 Service Manual ▷ View online
21
21
CDX-MP80
Pin No.
Pin Name
I/O
Pin Description
98
UNI SI
I
Bus data input
99
VSS
—
Ground pin
100
VSS
—
Ground pin
101
UNI CKI
I
Bus clock signal input
102
NCO
O
Not used. (Open)
103
AVCC
—
Power supply pin (+5 V)
104
VREF
—
Reference voltage pin (+5 V)
105 – 111
NIL
I
Connecting to ground in this set.
112
SA IN
I
SA data input
113
AVSS
—
Ground pin
114
VSS
—
Ground pin
115 – 122
NCO
O
Not used. (Open)
123
MD0 (H)
—
Mode pin
124
MD1 (H)
—
Mode pin
125
MD2 (H)
—
Mode pin
126 – 128
NCO
O
Not used. (Open)
22
22
CDX-MP80
4-2. BLOCK DIAGRAM — CD SECTION —
(Page 24)
IC3 (2/2)
I-V
AMP
RFAC
RFDC
EQ
IN
IN
A
B
B
B+
(RF+5V)
C
D
VC
DVCC
LD
OUT2F
FFDR
FRDR
TFDR
TRDR
SFDR
SRDR
IN4F
OUT2R
OUT1F
OUT1R
C176
MDS
MDP
OUT3F
OUT3R
OUT4F
OUT4R
A-D
RFAC
RFDC
DC OFST
FE
TE
TE BAL
VCC
VC
B+ (SERVO+3.3V)
DVC
63 VC
FE
LOUT1
LOUT2
PCMD
PCMDI
LRCK
BCK
SE
TE
FFDR
FRDR
TFDR
TRDR
SFDR
SRDR
42 C176
43
MDP
44
35 27 26 25 24 23 21 17 15 14 12 8 81 78
20 7 8
9 11 10 16 38 85 84 17 6 19 40
30
68 31 32 47 48 87 88 86
15 70 74 76 77 78 91 92
2
3
72
1
5
6
60
62
9
94
5
32
30
19
39
94
59
MDS
TEL BAL ADJ
APC2
22 APC1
23 SPST
63 XTAL
65 XTXAL
1-4,7
10-20,31
22
23
4
5
2,3,24,25
8-12
15-19,21
115-118
1-3,5-7
106-109,110
3,4,7,10,11
15-31,34
36-38,41
42,44,45
21-23
25-29
47,48
49-51
53-55
FOCUS
COIL
DRIVE
27
29
30
25
TRACKING
COIL
DRIVE
21
19
18
23
SLED
MOTOR
DRIVE
12
14
SPINDLE
MOTOR
DRIVE
6
4
8
16
3
15
10
104
97
90
86
89
88
14
13
9
12
14
8
12
10
7
6
8
1
7
3
IC3 (1/2)
I-V
AMP
5
2V REG
IC7
AUTO POWER
CONTROL
Q1
APC
AMP
MUTE
Q3
MOTOR
CTL
IC9
VCA
VC
VC
RFDC
AMP
FOCUS
ERROR
AMP
OFFSET
CONTROL
Q2
APC MODE
CONTROL
Q5,6
VIBRATION
MEMORY
CONTROLLER/
COMPRESSION
EXPANDER
OP AMP,
ADC
LPF
DAC
SERVO BLOCK
MICRO
COMP.
COMP.
I/F
BUS
SWITCH
GAIN
BAL
TRACKING
ERROR
AMP
EQ
27
10
11
62
60
61
12
DIGITAL
CLV
SIGNAL
PROCESSOR
FOCUS/TRACKING COIL DRIVE,
SLED/SPINDLE MOTOR DRIVE
IC8
IN4R
PSB
M
M
M2
SLED
MOTOR
M1
SPINDLE
MOTOR
22
14
18
19
13
1
2
PD
15
28
30
16
9
3
RF AMP
IC2
RF
A
B
VC
E
F
LD
PD
F+
F-
T+
T-
OPTICAL
PICK-UP
BLOCK
71
58
D0-3
A0-10
120
93
119
114
113
FOK
SCLK
SENS
CLOK
XLAT
SDTO
XRST
SCOR
SQCK
SQSO
XQOK
XWRE
GFS
WDCK
FOK
SCLK
SENS
CD CLK
CD LAT
CD DAT
XRST
SCOR
SQCK
SQSO
XQOK
XWRE
GFS
XRDE
SCL
SDA
GRSCOR
X2
12.288MHz
43
21
PSB
FL BOOT
PCTX
PCRX
KEY IN0
KEY IN1
LED CLK
LED LAT
LED DATA
MUTE
CD ON
LINK OFF
UNI SO
UNI SI
UNI CK
BUS ON
BU CHK
FL BOOT
PCTX
PCRX
KEY IN0
KEY IN1
LED CLK
LED LAT
LED DATA
UNI SLK
A-ATT
BU IN
1
2
3
4
5
6
7
8
CN7
DECXRES
DECSTBY
DECINT
NC
RSTX
CD SYSTEM CONTROL
IC11
4 81 80
BUFF
IC15
AUDIO
I/F
SRAM
I/F
PROM
BUFF
IC10
RAS
DQ1-4
A0-10
WE
CAS
CSI
DQ1-3
IO4-8
A0-16
OE
WE
OE
43
17
16
DRAM
IC6
SRAM
IC4
XRAM
YRAM
CROM
SW4
ERAM
MAC
ALU
X BUS
Y BUS
XI
SDIO
SDD
LRCKIA
BCKIA
CKI.AKO
MICK
MIDIO
RESET
STANBY
PO7
LEVEL
SHIFT
IC13
2V REG
IC7
RF+5V
B+ (REF+2V)
(IC3)
2.5V REG
IC12
BU+3V
B+ (REF+2.5V)
(IC5)
DIGITAL SERVO
DIGITAL SIGNAL PROCESSOR
IC1
AUDIO INTERFACE
IC5
M
B
SW1
OPEN/CLOSE
SW2
(OPEN END )
SW3
(CLOSE END)
L CH
R CH
A ATT
EJECTKEY
MOTOR+
MOTOR-
LED ON
CD ON
LINK OFF
UNI SO
UNI SI
UNI SLK
BUS ON
BU IN
OPEN END
CLOSE END
SYS RESET
M3
LOADING
MOTOR
D2,4-7
IC14
50
51
48
49
46
47
XTAI
XOE
XCAS
XWE
XRAS
XTAO
XRDE
B+
(RF+5V)
AUDIO,
DISPLAY
SECTION
SECTION
B
BUS CONTROL,
POWER
SECTION
A
X1
16.934MHz
• Signal path
: CD
(Page 23)
23
23
CDX-MP80
4-3. BLOCK DIAGRAM — AUDIO, DISPLAY SECTION —
1
2
17 18
9
16
8
2
98
92
93
73
74
48 79
72
80
46
110 109
ENC901
VOL
99 98
100
10 11
52 75
70 71 53 55 9 31 5
97
3
4
9
7
6
49
106
12
13
84
85
86
87
57
66
64
22
4
11
12
5
3
62
60
100
99
5
9 10 20
4
12 13 14
8
10
9
12
4
43
28
27
24
39
38
33
40
16
19 20 14 13
23 21
17
9
7
BUFF
Q202
Q202
NOISE
DETECT
IC201
MUTE
CONTROL
Q530
MUTE
CONTROL
Q310,312
MUTE
Q303
MUTE
Q301
MUTE
Q305
SUB
OUT
OUT
IC310
NS MASK
Q203
112
1
L
R
L
R
-1
-2
-1
-2
CN303
AUX IN
CN201
(ANTENNA)
CN302-1,-2
BUS
AUDIO
IN
L
R
L
R
L
R
CN302-5,6
FRONT
CN302-3,4
REAR
CN301
SUB OUT
(MOMO)
R-CH
R-CH
AM-ANT
FM-ANT
AM DET
MPX
SDA
SCL
SDA
SCL
S-METER
RDS DET
EEPROM
AUX-L
MD-L
AC IN L
ELECTRONIC VOLUME
IC305
QUAL
SDA
SCL
MPIN
LEVEL
56
NS MASK
SM
SAOUT
SACLK
AM,MPX2
MPX
CD-L
A OUT L
OUT SW
CREF
OUT LF
OUT LR
X201
OSCI
OSCO
MPX
SDA
SCL
LVIN
DAVN
MPTH
RDS
IC202
LCH
ADSO
IC301
IC301
-1
-2
-5
-6
-3
-4
R-CH
R-CH
FP CLOSE
FP OPEN
FP OPEN
FP IDET
OPEN SW
CLOSE SW
XIA
15
BEEP
XOA
KEY ACK
AD ON
RE LB
RE LA
RE RB
RE RA
KEY INO
RC INI
RC INO
BOOT
DIMMER
BLUE
GREEN
AMBER
NOSE SW/
RX
TX
ATT
E VOL ATT
NCO
AMP ON
VSM
I2C-SCL
I2C-SDA
DAVN
MPTH
T.ROM SCL
T.ROM SDA
XI
LCD DATA
LCD CLK
LCD CE
XO
108 107
ENC902
PRST/AMS
KEY
KEY ACK
DETECT
Q501
BEEP
SWITCH
Q502
SACLK
Q309
SAIN
LCD CKO
LCD CE
LCD CE
BOOT
RX
LCD SO/TX
COLOR
CONTROL
Q901-906
Q901-906
LCD
TUNER UNIT
TUX201
X503
3.68MHz
X501
32.768kHz
MOTOR
DRIVE
IC653
M
M601
OPEN/CLOSE
MOTOR
S601
(OPEN)
S602
(CLOSE)
BZ501
J651
(REMOTE IN)
L CH
R CH
R-CH
A ATT
EJECT
SYSTEM CONTROL
IC501 (1/2)
AEP,UK MODEL
POWER AMP
IC309
LINE AMP
IC307
1
7
3
5
BUFFER
IC303
DISPLAY CONTROL
IC702 (1/2)
CN101 (1/2)
1
9
4
12
2
10
3
ST-BY
MUTE
MUTE
11
FL+
FL-
FR+
R-CH
R-CH
R-CH
R-CH
FR-
RL+
RL-
RR+
RR-
LCD DRIVER
IC901
KEY
BOARD
LSW901-905,907,909
ENC901,902
S901-904
CURRENT
DETECT
IC651(1/2)
AUDIO
OUT
24
23
2
5
CD
SECTION
B
• Signal path
: CD
: FM
: AM/MW/LW
• R-ch is omitted due to
same as L-ch.
(Page 22)
24
24
CDX-MP80
4-4. BLOCK DIAGRAM — BUS CONTROL, POWER SECTION —
35
16
95
84
81
83
57
37
65
82
49
52
85
86
61
62
101
114
51
60
58
59
17
19
14
77
86
90
85
6
18
47
24
63
81
6
34
101
97
98
38
50
10
13
11
9
8
12
3
2
7
9
3
13
11
17
4
6
5
6
4
2
3
1
7
8
1
17
9
3
4
X701
18.432MHz
IR
RECEIVE
IC902
RESET
IC502
RESET
BATT
CHECK
BUFF
IC701
BUS
ON
LED
DRIVE
Q410
CURRENT
CHECK
IC651(2/2)
B+
(BU+5V)
X910
4MHz
3
4
9
7
6
TEL MUTE
DETECT
Q406
BATT
CHECK
Q603
BUS
CONTROL
Q602
ILLUMI
DETECT
Q407
ACC
DETECT
Q405
2
14
10
3
7
9
FREQ
SHIFT
Q105
ON/OFF
DRIVE
Q106
5V REG
Q160
3.3V REG
IC402
5V REG
Q150
B+(BU+5V)
TUX201,IC501,601
IC701,702
B+(SERVO+3.3V)
(IC1,2,6,8,9)
B+(MOTOR+9V)
(IC653,654)
B+(REF+5V)
(IC2,3,5)
B+(BU+3.3V)
(IC4,5,11,13,14,411)
B+(AUD+3V)
(IC1)
B+(TU+8.5V)
(TUX201,IC201)
B+(AUD+8.5V)
IC301-305
307,310
B+(LCD+B)
(IC901-903)
9V REG
IC652
REG
IC401
REG
Q113,116
POWER
SWITCH
Q401,402
LEVEL
DETECT
IC102
POWER
SWITCH
Q101,102
B+(TU+5V)
(TUX201,IC202)
POWER
SWITCH
Q107,108
5V
REG
Q201
POWER
SWITCH
Q109,112
POWER
SWITCH
Q110,111
3V REG
Q117-119
POWER
SWITCH
Q408,409
ON/OFF
DRIVE
Q103
OUT1
INA1
RT
INA2
INA2
OUT2
PWM CONTROL
IC101
CD ON IN
T-CLOSE
T-OPEN
T-OPEN
MOTOR
TR-DET
LED ON
UNISI
UNICLK
BUSON
BUIN
HSTX
RSTX
RSTX
UNISO
RAM BU
SYS RST
TEMP
SIRCS
L-RESET
SYS RES
UNICKI
BU IN
UNISI
BUSON
LINKOFF
UNISO
OPEN SENS
CLOSE SENS
TEL ATT
ILL IN
TEST IN
ACC IN
PON
TUNER ON
DDC ON
FSW SFT
TH501
FSW IN
SPE
ILL ON
XTAL
EXTAL
FLS PWON
Q411
MOTOR
DRIVE
IC654
CD ON
MOTOR+
MOTOR-
LED ON
OPEN SENS
LOAD SENS
UNISI
UNI CLK
BUS ON
BU IN
SYS RESET
UNISO
5
15
LEVEL SHIFT
IC411
SIRCS
I/F
IC903
SYSTEM CONTROL
IC501 (2/2)
DISPLAY CONTROL
IC702 (2/2)
Q601
Q604
BUS I/F
IC601
BCLK
B DATA
BUS ON
BUS ON
B+ (BATT)
CN601
(BUS CONTROL IN)
CN101 (2/2)
TEL MUTE
ILL
ACC
TEST
+B
AMP R
ANT R
13
14
15
7
16
5
6
POWER
SWITCH
Q401,404
B+ (BATT)
(IC309)
(IC309)
B+ (DD+5V)
(TUX201)
(TUX201)
(RESET)
VCC
CD
SECTION
A
S1
(Page 22)
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