Sony CDX-MP70 Service Manual ▷ View online
17
CDX-MP70
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
56
MD1
—
CPU operation mode setting
57
OSC2
—
Not used. (Open)
58
OSC1
—
Connecting to ground in this set.
59
RSTX
I
CPU reset signal
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
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
69
FL W
O
Flash write control signal
70
CD ON
O
CD servo power control signal
71
CDM ON
O
Not used. (Open)
72
DEC INT
I
DEC interrupt signal
73
(NCO)
O
Not used. (Open)
74
LINK OFF
O
Link off signal
75
EJECT KEY
I
Eject key signal
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
79
(NCO)
O
Not used. (Open)
80
SDA
I/O
I2C interface data input/output
81
SCL
O
I2C interface clock signal
82, 83
(NCO)
O
Not used. (Open)
84
SQSO
I
Sub-code Q data input
85
SQCK
O
Sub-code Q read-out clock signal
86
LED DAT
O
LED data output
87
LED CLK
O
LED clock signal
88
LED LAT
O
LED latch signal
89, 90
(NCO)
O
Not used. (Open)
91
BUS ON
I
Bus ON signal
92
BU CHK
I
Back up voltage detect signal
93
(NCO)
O
Not used. (Open)
94
(NCO)
O
Not used. (Open)
95, 96
(NCO)
O
Not used. (Open)
97
TEXT SEL
I
CD text function select
98
ESP SEL
I
ESP function select
99
CF SEL
I
Custom file function select
100
DOUT SEL
I
Digital-out select
18
CDX-MP70
• IC501 MB90574CPMT-G-361-BNDE1 (SYSTEM CONTROL) (MAIN BOARD) (AEP, UK model)
• IC501 MB90574CPMT-G-362-BNDE1 (SYSTEM CONTROL) (MAIN BOARD) (US, Canadian model)
• IC501 MB90574CPMT-G-362-BNDE1 (SYSTEM CONTROL) (MAIN BOARD) (US, Canadian model)
Pin No.
Pin Name
I/O
Pin Description
1 – 4
(NCO)
O
Not used. (Open)
5
ATT
O
System mute control signal
6
SYS RST
O
System reset signal
7
(NCO)
O
Not used. (Open)
8
VCC
—
Power supply pin (+5 V)
9
AMP ATT
O
Power amplifier mute signal
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
13
TX
O
Flash CPU write-in data output
14
BUS ON
O
BUS ON control signal
15
BEEP
O
Beep signal
16
TEL ATT
I
Telephone mute detect signal
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
(NCO)
O
Not used. (Open)
24
SIRCS
I
Wireless remote data input
25 – 30
(NCO)
O
Not used. (Open)
31
E VOL ATT
O
Electronic volume mute signal
32
(NCO)
O
Not used. (Open)
33
VSS
—
Ground
34
C
—
Condenser pin for voltage stabilizer
35
CDON IN
I
CD On signal
36
(NCO)
O
Not used. (Open)
37
FSW SFT
O
OSC frequency shift signal for DC/DC conv.
38
DVCC
—
Power supply pin (+5 V)
39
DVSS
—
Ground
40, 41
(NCO)
O
Not used. (Open)
42
AVCC
—
Power supply pin (+5 V)
43
AVRH
—
Power supply pin (+5 V)
44
AVRL
—
Ground
45
AVSS
—
Ground
46
KEY IN0
I
Key input 0
47
TEMP
I
Tempareture detect signal
48
RC IN0
I
Rotary commander input 0
49
FP-I DET
I
Front panel motor current detect signal
50
QUALITY
I
Tuner noise detction signal (AEP, UK model)
51
TR-I DET
I
Tray motor current detect signal
52
MPTH
I
Tuner multi-pass detect signal (AEP, UK model)
53
VSM
I
S-meter voltage detect signal
54
VCC
—
Power supply pin (+5 V)
55
AMP ON
O
AMP ON control signal
56
NS MASK
O
Tuner noise masking control signal
57
DDC ON
O
DC/DC converter power control signal
58
OPEN SENS
I
Tray open detection signal
59
CLOSE SENS
I
Traay close detect signal
60
LED ON
O
Tray illumination ON signal
61
T CLOSE
O
Tray loading motor output
62
T OPEN
O
Tray loading motor output
63
VSS
—
Ground
19
CDX-MP70
Pin No.
Pin Name
I/O
Pin Description
64
(NCO)
O
Not used. (Open)
65
FSW IN
I
Oscillation frequency count input
66 – 68
(NCO)
O
Not used. (Open)
69
FLASH W
I
Flash write-in mode detect signal
70
I2C SIO
O
I2C serial data output
71
I2C CKO
O
I2C serial clock output
72
KEYACK
I
Key acknowledge signal
73
X1A
—
Crystal oscillator (32.768 kHz)
74
X0A
—
Crystal oscillator (32.768 kHz)
75
DAVN
I
RDS data acquisition detect signal (AEP, UK model)
76
(NCO)
O
Not used. (Open)
77
BU IN
I
Back-up power detect signal
78
(NCO)
O
Not used. (Open)
79
RC IN1
I
Rotary commander input 1
80
AD ON
O
A/D converter power control signal
81
ACC IN
I
Accessory key ON signal
82
FLASH P ON
O
Flash power ON control signal
83
POW ON
O
Audio circuit power ON control signal
84
TEST IN
I
Test mode initial setting detect signal
85
RAM BU
I
RAM reset detect signal
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 input
91
VSS
—
Ground
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
96
MID SW
O
Not used. (Open)
97
FP OPEN
O
OPEN/CLOSE motor control signal
98
FP CLOSE
O
OPEN/CLOSE motor control signal
99
CLOSE SW
I
Close SW detection signal
100
OPEN SW
I
Open SW detection signal
101
MOTOR ON
O
Motor power supply ON signal
102
(NCO)
O
Not used. (Open)
103
(NCO)
O
Not used.
104
DEST SEL1
I
Destination selector signal 1
105
DEST SEL2
I
Destination selector signal 2
106
BOOT
O
Display CPU write-in control signal
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
(NCO)
O
Not used. (Open)
114
TUN ON
O
Tuner ON signal
115 – 118
(NCO)
O
Not used. (Open)
119
VSS
—
Ground
120
(NCO)
O
Not used. (Open)
20
CDX-MP70
• IC702 HD6432398-A02 (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
4
(NCO)
—
Not used. (Open)
5
VCC
—
Power supply pin (+5 V)
6 – 9
(NCO)
O
Not used. (Open)
10
VSS
—
Ground
11 – 18
(NCO)
O
Not used. (Open)
19
VSS
—
Ground
20 – 27
(NCO)
O
Not used. (Open)
28
VSS
—
Ground
29 – 32
(NCO)
O
Not used. (Open)
33
SPE LAT
I
Spectrum analyzer LAT signal
34
BU IN
I
Back up voltage detect signal
35, 36
VSS
—
Ground
37
(NCO)
O
Not used. (Open)
38
BUS ON
I
BUS ON signal
39
VCC
—
Power supply pin (+5 V)
40 – 43
(NCO)
O
Not used. (Open)
44
VSS
—
Ground
45 – 48
(NCO)
O
Not used. (Open)
49
SPE
I
Spectrum analyzer enable signal
50
LINK OFF
O
LINK OFF signal
51
(NCO)
O
Not used. (Open)
52
ILL ON
O
Illumination control signal
53
VSS
—
Ground
54 – 56
(NCO)
O
Not used. (Open)
57
BOOT
I
Display CPU write-in control signal
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
64
LCD CKO
O
LCD clock signal
65
VSS
—
Ground
66
LCD CEO
O
LCD driver chip enable
67, 68
VSS
—
Ground
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
82
NMI
I
Non maskable interrupt signal
83
STBY
I
Stanby mode signal
84
VCC
—
Power supply pin (+5 V)
85
XTAL
—
Crystal oscillator (18.432 MHz)
86
EXTAL
—
Crystal oscillator (18.432 MHz)
87
VSS
—
Ground
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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