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PANEL BOARD IC301 MB90F831PF-G-SPE1 (SYSTEM CONTROLLER)
Pin No.
Pin Name
1
SEG32
2
O-AMP-ON
3
O-POWER
4
O-CD-ON
I-3CD-SW3/O-CDM-
CLOSE, I-3CD-SW2/
5 to 7
NC, I-3CD-SW1/
O-CDM-OPEN
O-3CD-M1+/
8
O-CDM-M1+
9
I-RMC
O-3CD-M1-/
10
O-CDM-M1-
O-3CD-M2+/NC,
11, 12
O-3CD-M2-/NC
13
X0A
14
X1A
15
VCC
16
VSS
I/O-CD-BUS0 to
17 to 20
I/O-CD-BUS3
21
I-3CD-CHACK
22
I-3CD-STOCK
23
O-DR-MUTE
24
I-REQ
25
O-CD-BUCK
26
O-CD-CCE
27
O-CD-RST
28
O-LED-STBY
29
I-USB-TXD/I-DMP-TXD
I-USB-DO/
30
I-DMP-5V-DET
O-USB-RXD/
31
O-DMP-RXD
32
AVCC
33
I-TU-DO
O-USB-DI/5V-ON/
34
O-TP-REC-MUTE
35
AVSS
36
I-P-MONI
37, 38
I-KEY1, I-KEY2
39
I-TU-ANSD
O-USB-SEL1_2/O-SW-
40
ON/I-TP-STATE
41
I-KEY-WAKE-UP/VOL
42
I-HOLD
43
O-CD-SBSY
44
GND
I-DMP-DET/
45
O-USB-RST
46
I-MODEL
47
I-SUFFIX
I-1CD-CLOSE_OPEN/
48
NC
49
I/O-I2C-DATA
50
I/O-I2C-CLK
51 to 53
MD2 to MD0
54
I-RST
55
O-TU-CE
56
O-TU-CLK
I/O
O
Segment drive signal output to the liquid crystal display
O
Relay drive signal output terminal (for speaker)
O
Main power on/off control signal output terminal
O
CD power on/off control signal output terminal
I
Detection switch input terminal
O
Motor drive signal output terminal
I
Remote control signal input from the remote control receiver
O
Motor drive signal output terminal
O
Motor drive signal output terminal
I
Sub system clock input terminal (32.768 kHz)
O
Sub system clock output terminal (32.768 kHz)
-
Power supply terminal (+3.1V)
-
Ground terminal
O
Serial data output to the CD-MP3 processor
I
Disc chucking detection switch input from the CD mechanism deck (Australian model)
I
Disc stocking detection switch input from the CD mechanism deck (Australian model)
O
Muting signal output to the motor/coil driver
I
Request signal input from the CD-MP3 processor
O
Serial data transfer clock signal output to the CD-MP3 processor
O
Chip enable signal output to the CD-MP3 processor
O
System reset signal output to the CD-MP3 processor "L": reset
O
LED drive signal output terminal for STANDBY indicater
I
Serial data input from the DMPORT connector
I
Power voltage detection signal input terminal
O
Serial data output to the DMPORT connector
-
Power supply terminal (+3.1V)
I
Serial data input from the AM/FM DET
O
Power on/off control signal output terminal
-
Ground terminal
I
Power monitor signal input terminal
I
Front panel key input terminal (A/D input)
I
Power monitor signal input terminal
O
Subwoofer on/off control signal output terminal
I
System wake up signal input terminal
I
Hold signal input terminal
I
Subcode block sync signal input from the CD-MP3 processor
-
Ground terminal
I
DMPORT connector detection signal input terminal
I
Model setting terminal
I
Suffi x setting terminal
I
CD table open/close detection signal input terminal (Australian model)
I/O
Two-way serial data bus with the electrical volume
O
Serial data transfer clock signal output to the electrical volume
-
Not used
Reset signal input from the voltage detect
I
For several hundreds msec. after the power supply rises, "L" is input, then it changes to "H"
O
Chip enable signal output to the FM/AM DET
O
Serial data transfer clock signal output to the FM/AM DET
Description
"H": on
"H": on
"L": reset
HCD-EC98P
45
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