Sony CDX-M8810 / CDX-M8815X Service Manual ▷ View online
37
CDX-M8810/M8815X
• IC PIN DESCRIPTIONS
• IC3 MB90487APFV-G-142-BNDE1 (CD SYSTEM CONTROL) (SERVO BOARD (2/2))
Pin No.
Pin Name
I/O
Pin Description
1
NC
O
Servo 1.5 V power supply control signal output
2 to 6
NC
—
Not used. (Open)
7
CD BUS0
I/O
Bus data signal input/output 0
8
CD BUS1
I/O
Bus data signal input/output 1
9
VSS
—
Ground pin
10
CD BUS2
I/O
Bus data signal input/output 2
11
CD BUS3
I/O
Bus data signal input/output 3
12
CD BUCK
O
Bus clock signal output
13
CD XCCE
O
Chip enable signal output
14
CD XRST
O
Reset signal output
15
CD ZDET
I
Zero detection signal input
16 to 20
NC
—
Not used. (Open)
21
VCC
—
Power supply pin (+3.3 V)
22
DAC ZDETL
I
Zero data detection signal input (L-ch)
23
DAC ZDETR
I
Zero data detection signal input (R-ch)
24
NC
—
Not used. (Open)
25
RXD
I
UART RXD data signal input (MCBUS/Flash data input)
26
TXD
O
UART TXD data signal output (MCBUS/Flash data output)
27
DEC SSTBY
O
SRAM STANDBY mode control signal output
28, 29
NC
—
Not used. (Open)
30
DEC INT
I
Request signal input
31, 32
NC
—
Not used. (Open)
33
AVCC
—
Power supply pin (+3.3 V) for A/D converter
34
AVRH
—
External reference voltage for A/D converter
35
AVSS
—
Ground pin
36
NC
—
Not used. (Open)
37
DEC XMUTE
O
Mute signal output L: mute
38, 39
NC
—
Not used. (Open)
40
VSS
—
Ground pin
41
NC
—
Not used. (Open)
42
MEC LIMIT
I
Sled limit in detection switch signal input
43
MEC LOAD
O
Loading motor signal output (Load direction)
44
MEC EJECT
O
Loading motor signal output (Eject direction)
45
MEC INSW
I
Pack-in detection signal input
46
MEC DSW
I
Chucking end detection switch signal input
47, 48
MD0, MD1
I
CPU operation mode designation signal input (Connect to Vcc.)
49
MD2
I
CPU operation mode designation signal input (Connect to Vss.)
50
BUS ON
I
Bus on signal input L: bus on
51
BU IN
I
Backup on/off signal input H: backup on, L: backup off
52
CD SBSY
I
SUBQ sync signal input L: interruption
53
MEC SELFSW
I
Disc insert detection switch signal input L: disc in interruption
54, 55
NC
—
Not used. (Open)
56
UNISI
I
Serial data signal input
57
UNISO
O
Serial data signal output
58
UNICKI
I
Serial clock signal input
59
LINKOFF
O
Link off signal output
60
A ATT
O
Audio attenuation signal output H: ATT on
61
EJECT OK
I
Front panel open signal input H: eject
62
OPEN REQ
O
Front panel open/close request signal output H: open request
63
MECON
O
Mechanism deck power supply control signal output
64
CDON
O
Servo power supply control signal output
38
CDX-M8810/M8815X
Pin No.
Pin Name
I/O
Pin Description
65
XUART
I
Sony-Bus/MC-Bus change signal input H: Sony-Bus, L: MC-Bus
66
ZMUTE
O
Zero detection mute signal output
67
MECON CHK
I
MECON rising detection signal input
68
CDON CHK
I
CDON rising detection signal input
69 to 74
NC
—
Not used. (Open)
75
RSTX
I
System reset signal input
76
NC
—
Not used. (Open)
77
X1A
—
Sub-clock connect pin Not used in this set. (Open)
78
X0A
—
Sub-clock connect pin Not used in this set. (Connect to Vss.)
79
VSS
—
Ground pin
80
X0
I
Main-clock connect pin (12 MHz)
81
X1
O
Main-clock connect pin (12 MHz)
82
VCC
—
Power supply pin (+3.3 V)
83
XTS
I
Not used in this set. (Connect to Vss.)
84
XINIT3
I
Not used in this set. (Open)
85
NC
—
Not used. (Open)
86
XSJIG
I
Not used in this set. (Open)
87 to 89
XINIT0 to 2
I
Not used in this set. (Open)
90 to 97
NC
—
Not used. (Open)
98
XLINE
I
Not used in this set. (Open)
99, 100
NC
—
Not used. (Open)
39
CDX-M8810/M8815X
• IC303 M30622MEP-186GP (SYSTEM CONTROL) (MAIN Board (3/4))
Pin No.
Pin Name
I/O
Pin Description
1
SIRCS
I
Remote control data input
2
FP_CTRL
O
Not used. (Open)
3
NC
O
Not used. (Open)
4
NC
O
Not used. (Open)
5
NC
O
Not used. (Open)
6
BYTE
I
L fixed terminal
7
CNVSS
I
Flash write-in signal input
8
XIN
I
Sub clock input (32.768kHz)
9
XOUT
O
Sub clock output (32.768kHz)
10
RESET
I
CPU reset signal input
11
OSCOUT
O
Main clock output (6MHz)
12
VSS
—
Ground
13
OSCIN
I
Main clock input (6MHz)
14
VCC1
—
Power supply pin (+3.3V)
15
NMI
I
Non maskable interrupt signal input
16
NC
O
Not used. (Open)
17
DAVN
I
Not used. (Open)
18
BU_IN
I
Back-up power detect signal input
19
NS_MASK
O
Not used. (Open)
20
BEEP
O
Beep signal output
21
FLW_IN
I
OSC frequency shift signal for DC/DC conv.
22
FLW_OUT
O
OSC frequency shift signal for DC/DC conv.
23
SA_CLK
O
Spectrum analyzer clock signal output
24
TELATT
I
Telephone mute detect signal input
25
ATT
O
Mute signal output
26
VOLATT
O
Electronic volume mute signal output
27
I2C_CKO
O
Tuner/E-volume BUS clock output
28
I2C_SIO
O
Tuner/E-volume BUS data output
29
UNI_SO
O
BUS CONTROL data output
30
UNI_SI
I
BUS CONTROL data input
31
UNI_CKO
O
BUS CONTROL clock output
32
TUNERATT
O
Tuner mute signal output
33
EESIO
I/O
EEPROM data input/output
34
EECKO
O
EEPROM clock output
35
NC
O
Not used. (Open)
36
NC
O
Not used. (Open)
37
NC
O
Not used. (Open)
38
NC
O
Not used. (Open)
39
HOLD
I
Connected to ground
40
AMP_DIAG
I
Amplifier diagnosis signal input
41
AMP_STB
O
Amplifier standby signal output
42
AMP_ON
O
Not used. (Open)
43
TUNER_ON
O
Not used. (Open)
44
WRI/WR
I
Connected to VCC (+3.3V)
45
NC
O
Not used. (Open)
46
NC
O
Not used. (Open)
47
NC
O
Not used. (Open)
48
NC
O
Not used. (Open)
49
NC
O
Not used. (Open)
50
DST_SEL1
I
Destination select signal input
51
DST_SEL2
I
Destination select signal input
52
NC
O
Not used. (Open)
40
CDX-M8810/M8815X
Pin No.
Pin Name
I/O
Pin Description
53
MOTOR ON
O
Front panel motor drive ON signal output
54
CLOSE-SW
I
Front panel close switch signal input
55
OPEN-SW
I
Front panel open switch signal input
56
I_DET
O
Not used. (Open)
57
MOT–
O
Front panel open/close control signal output
58
MOT+
O
Front panel open/close control signal output
59
CD_ON
I
CD servo ON signal input
60
VCC2
—
Power supply pin (+3.3V)
61
RESET OUT
O
Display CPU reset signal output
62
VSS
—
Ground
63
TEST IN
I
Test mode setting detect signal input
64
BUS_ON
O
BUS ON control signal output
65
SYSRST
O
System reset signal output
66
BUS/AUX
O
BUS/AUX select control signal output
67
NC
O
Not used. (Open)
68
ACC_IN
I
Accessory key ON detect signal input
69
ILL_IN
I
Illumination line detect signal input
70
RC_IN1
I
Rotary commander signal input 1
71
CDM_ON
I
CD drive power ON signal input
72
NC
O
Not used. (Open)
73
TU ATT-IN
I
Tuner ATT zero cross signal input
74
NC
O
Not used. (Open)
75
NC
O
Not used. (Open)
76
Z_ATT
I
CD Z-MUTE signal input
77
EJECT-OK
O
CD EJECT-OK signal output
78
OPEN_REQ
I
CD OPEN REQ signal input
79
TEMP-TR
I
Temperature detect input
80
QUALITY
O
Not used.
81
FP-I_DET
I
Front panel motor current detect signal input
82
VSM
I
S-meter signal input
83
SA_IN
I
Spectrum analyzer data input
84
KEYIN1
I
Key signal input 1
85
KEYIN0
I
Key signal input 0
86
RCIN0
I
Rotary commander signal input 0
87
KEY_ACK2
I
Key acknowledge detect signal input 2
88
KEY_ACK0
I
Key acknowledge detect signal input 0
89
KEY_ACK1
I
Key acknowledge detect signal input 1
90
OPEN_KEY
I
Open key detect signal input
91
RAM_BU
I
RAM back up signal input
92
FLD_ON
O
FL driver power supply ON/OFF signal output
93
FL_ON
O
FL power supply ON/OFF signal
94
AVSS
—
Ground
95
DISP_CE
O
Display CPU chip enable output
96
VREF
—
A/D converter reference voltage (+3.3V)
97
AVCC
—
Power supply pin (+3.3V)
98
DISP SI/RX
I
Display CPU BUS data input
99
DISP SO/TX
O
Display CPU BUS data output
100
DISP CKO
O
Display CPU BUS clock output
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