Sony CDX-MP80 Service Manual ▷ View online
17
CDX-MP80
Pin No.
Pin Name
I/O
Pin Description
53
AVREF
—
Reference voltage pin (+3.3 V) for A/D converter
54
AVCC
—
Power supply pin (+3.3 V) for A/D converter
55
MD0
—
CPU operation mode setting Connecting to VCC (+3.3 V) in this set.
56
MD1
—
CPU operation mode setting Connecting to VCC (+3.3 V) in this set.
57
OSC2
—
Not used. (Open)
58
OSC1
—
Connecting to ground in this set.
59
RSTX
I
CPU reset signal input
60
NMI
O
Connecting to VCC (+3.3 V) in this set.
61
STBY
—
Connecting to VCC (+3.3 V) in this set.
62
VCC
—
Power supply pin (+3.3 V)
63
XTAL
—
Crystal oscillator (12.288 MHz)
64
VSS
—
Ground pin
65
XTXAL
—
Crystal oscillator (12.288 MHz)
66
F WE
—
Flash write enable
67
MD2
—
CPU operation mode setting
68
FL BOOT
I
Flash write-in mode select signal input
69
FL W
O
Flash write control signal output
70
CD ON
O
CD servo power control signal output
71
CDM ON
O
Not used. (Open)
72
DEC INT
I
DEC interrupt signal input
73
NC
O
Not used. (Open)
74
LINK OFF
O
Link off signal output
75
EJECT KEY
I
Eject key signal input
76
UNI SO
O
SONY bus serial data output
77
UNI SI
I
SONY bus serial data input
78
UNI CK
I
SONY bus clock signal input
79
NC
O
Not used. (Open)
80
SDA
I/O
I2C interface data input/output
81
SCL
O
I2C interface clock signal output
82, 83
NC
O
Not used. (Open)
84
SQSO
I
Sub-code Q data input
85
SQCK
O
Sub-code Q read-out clock signal output
86
LED DAT
O
LED data output
87
LED CLK
O
LED clock signal output
88
LED LAT
O
LED latch signal output
89, 90
NC
O
Not used. (Open)
91
BUS ON
I
Bus ON signal input
92
BU CHK
I
Back up voltage detect signal input
93
NC
O
Not used. (Open)
94
NC
O
Not used.
95, 96
NC
O
Not used. (Open)
97
TEXT SEL
I
CD text function select signal input
98
ESP SEL
I
ESP function select signal input
99
CF SEL
I
Custom file function select signal input
100
DOUT SEL
I
Digital-out select signal input
18
CDX-MP80
• IC501 MB90574CPMT-G-397-BNDE1 (SYSTEM CONTROL) (MAIN BOARD) (US, Canadian model)
• IC501 MB90574CPMT-G-398-BNDE1 (SYSTEM CONTROL) (MAIN BOARD) (AEP, UK model)
• IC501 MB90574CPMT-G-398-BNDE1 (SYSTEM CONTROL) (MAIN BOARD) (AEP, UK model)
Pin No.
Pin Name
I/O
Pin Description
1 – 4
NC
O
Not used. (Open)
5
ATT
O
System mute control signal output
6
SYS RST
O
System reset signal output
7
NC
O
Not used. (Open)
8
VCC
—
Power supply pin (+5 V)
9
AMP ATT
O
Power amplifier mute signal output
10
T.ROM SDA
I/O
Tuner unit EEPROM data input/output
11
T.ROM SCK
O
Tuner unit EEPROM clock output
12
NOSE SW/RX
I
Nose SW detect signal input
13
TX
O
Flash CPU write-in data output
14
BUS ON
O
BUS ON control signal output
15
BEEP
O
Beep signal output
16
TEL ATT
I
Telephone mute detect signal input
17
UNI SI
I
SONY BUS data input
18
UNI SO
O
SONY BUS data output
19
UNI CLK
O
SONY BUS clock output
20 – 23
NC
O
Not used. (Open)
24
SIRCS
I
Wireless remote data input
25 – 30
NC
O
Not used. (Open)
31
E VOL ATT
O
Electronic volume mute signal output
32
NC
O
Not used. (Open)
33
VSS
—
Ground pin
34
C
—
Condenser pin for voltage stabilizer
35
CDON IN
I
CD On signal input
36
NC
O
Not used. (Open)
37
FSW SFT
O
OSC frequency shift signal output for DC/DC converter
38
DVCC
—
Power supply pin (+5 V)
39
DVSS
—
Ground pin
40, 41
NC
O
Not used. (Open)
42
AVCC
—
Power supply pin (+5 V)
43
AVRH
—
Power supply pin (+5 V)
44
AVRL
—
Ground pin
45
AVSS
—
Ground pin
46
KEY IN0
I
Key input 0
47
TEMP
I
Tempareture detect signal input
48
RC IN0
I
Rotary commander input 0
49
FP-I DET
I
Front panel motor current detect signal input
50
QUAL
I
Tuner noise detction signal input (AEP, UK model)
51
TR-I DET
I
Tray motor current detect signal input
52
MPTH
I
Tuner multi-pass detect signal input (AEP, UK model)
53
VSM
I
S-meter voltage detect signal input
54
VCC
—
Power supply pin (+5 V)
55
AMP ON
O
AMP ON control signal output
56
NS MASK
O
Tuner noise masking control signal output
57
DDC ON
O
DC/DC converter power control signal output
58
OPEN SENS
I
Tray open detection signal input
59
CLOSE SENS
I
Traay close detect signal input
60
LED ON
O
Tray illumination ON signal output
61
T CLOSE
O
Tray loading motor output
62
T OPEN
O
Tray loading motor output
63
VSS
—
Ground pin
19
CDX-MP80
Pin No.
Pin Name
I/O
Pin Description
64
NC
O
Not used. (Open)
65
FSW IN
I
Oscillation frequency count input
66 – 68
NC
O
Not used. (Open)
69
FLASH W
I
Flash write-in mode detect signal input
70
I2C SDA
O
I2C serial data output
71
I2C SCL
O
I2C serial clock output
72
KEYACK
I
Key acknowledge signal input
73
X1A
—
Crystal oscillator (32.768 kHz)
74
X0A
—
Crystal oscillator (32.768 kHz)
75
DAVN
I
RDS data acquisition detect signal input (AEP, UK model)
76
NC
O
Not used. (Open)
77
BU IN
I
Back-up power detect signal input
78
NC
O
Not used. (Open)
79
RC IN1
I
Rotary commander input 1
80
AD ON
O
A/D converter power control signal output
81
ACC IN
I
Accessory key ON signal input
82
FLS PWON
O
Flash power ON control signal output
83
P ON
O
Audio circuit power ON control signal output
84
TEST IN
I
Test mode initial setting detect signal input
85
RAM BU
I
RAM reset detect signal input
86
HSTX
I
Hardware standby input
87
MD2
I
Connecting to ground in this set.
88
MD1
I
Connecting to VCC (+5 V) in this set.
89
MD0
I
Connecting to VCC (+5 V) in this set.
90
RSTX
I
Reset signal input
91
VSS
—
Ground pin
92
X0
—
Crystal oscillator (3.68 MHz)
93
X1
—
Crystal oscillator (3.68 MHz)
94
VCC
—
Power supply pin (+5 V)
95
ILL IN
I
Illumination dimmer control signal input
96
MID SW
O
Not used. (Open)
97
FP OPEN
O
OPEN/CLOSE motor control signal output
98
FP CLOSE
O
OPEN/CLOSE motor control signal output
99
CLOSE SW
I
Close SW detection signal input
100
OPEN SW
I
Open SW detection signal input
101
MOTOR ON
O
Motor power supply ON signal output
102
NC
O
Not used. (Open)
103
NC
O
Not used.
104
DEST SEL1
I
Destination selector signal input 1
105
DEST SEL2
I
Destination selector signal input 2
106
BOOT
O
Display CPU write-in control signal output
107
RE RA
I
Rotary encoder input (Right/AMS)
108
RE RB
I
Rotary encoder input (Right/AMS)
109
RE LA
I
Rotary encoder input (Left/VOL)
110
RE LB
I
Rotary encoder input (Left/VOL)
111 – 113
NC
O
Not used. (Open)
114
TUNER ON
O
Tuner ON signal output
115 – 118
NC
O
Not used. (Open)
119
VSS
—
Ground pin
120
NC
O
Not used. (Open)
20
CDX-MP80
• IC702 HD6432398-A02FWV (DISPLAY CONTROL) (MAIN BOARD)
Pin No.
Pin Name
I/O
Pin Description
1
SA CLK
O
Spectrum analyzer clock output
2
NCO
O
Not used. (Open)
3
VSS
—
Ground pin
4
NC
—
Not used. (Open)
5
VCC
—
Power supply pin (+5 V)
6 – 9
NCO
O
Not used. (Open)
10
VSS
—
Ground pin
11 – 18
NCO
O
Not used. (Open)
19
VSS
—
Ground pin
20 – 27
NCO
O
Not used. (Open)
28
VSS
—
Ground pin
29 – 32
NCO
O
Not used. (Open)
33
SPE LAT
I
Spectrum analyzer LAT signal input Connecting to ground in this set.
34
BU IN
I
Back up voltage detect signal input
35, 36
VSS
—
Ground pin
37
NCO
O
Not used. (Open)
38
BUS ON
I
BUS ON signal input
39
VCC
—
Power supply pin (+5 V)
40 – 43
NCO
O
Not used. (Open)
44
VSS
—
Ground pin
45 – 48
NCO
O
Not used. (Open)
49
SPE
I
Spectrum analyzer enable signal pin
50
LINK OFF
O
LINK OFF signal output
51
NCO
O
Not used. (Open)
52
ILL ON
O
Illumination control signal output
53
VSS
—
Ground pin
54 – 56
NCO
O
Not used. (Open)
57
BOOT
I
Display CPU write-in control signal input
58
VCC
—
Power supply pin (+5 V)
59
NCO
O
Not used. (Open)
60
LCD SO/TX
O
LCD data output/UART signal output
61
NCO
O
Not used. (Open)
62
RX
I
UART signal input
63
L RST
O
Reset signal output
64
LCD CKO
O
LCD clock signal output
65
VSS
—
Ground pin
66
LCD CEO
O
LCD driver chip enable signal output
67, 68
VSS
—
Ground pin
69 – 78
NCO
O
Not used. (Open)
79
FL W
O
Not used. (Open)
80
VCL
I
Connecting to ground through a capacitor.
81
SYS RES
I
Reset signal input
82
NMI (H)
I
Non maskable interrupt signal input
83
STBY (H)
I
Standby mode signal input
84
VCC
—
Power supply pin (+5 V)
85
XTAL
—
Crystal oscillator (18.432 MHz)
86
EXTAL
—
Crystal oscillator (18.432 MHz)
87
VSS
—
Ground pin
88
NCO
O
Not used. (Open)
89
VCC
—
Power supply pin (+5 V)
90 – 96
NCO
O
Not used. (Open)
97
UNI SO
O
Bus data output
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