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HCD-EC69i/EC79i/EC99i
44
PANEL BOARD IC301 MB90F830PF-GE1 (SYSTEM CONTROLLER)
Pin No.
Pin Name
I/O
Description
1
SEG32
O
Segment drive signal output to the liquid crystal display
2
O-SP-RELAY-ON/
TC ON/SW ON
O
Relay drive signal output terminal (for speaker), and subwoofer function on/off control signal
output terminal (EC99i)
3
O-POWER
O
Main power on/off control signal output terminal “H”: main power on
4
O-CD-ON
O
CD power on/off control signal output terminal “H”: CD power on
5
I-CDM-CLOSE
I
Detection switch input from the CD mechanism section (EC79i: UK, Australian/EC99i)
6
NC
-
Not used
7
I-CDM-OPEN/
CDM-OPEN_CLOSE
I
Detection switch input from the CD lid opn/close detect switch (EC69i/EC79i: US, Canadian
models), or Detection switch input from the CD mechanism section (EC79i: UK, Australian/
EC99i)
8
O-CDM-M+/NC
O
Motor drive signal output terminal (EC79i: UK, Australian/EC99i)
9
I-RMC
I
Remote control signal input from the remote control receiver
10
O-CDM-M-/NC
O
Motor drive signal output terminal (EC79i: UK, Australian/EC99i)
11
5V-ON
O
VBUS power supply on/off control signal output terminal
12
NC
-
Not used
13
X0A
I
Sub system clock input terminal (32.768 kHz)
14
X1A
O
Sub system clock output terminal (32.768 kHz)
15
VCC
-
Power supply terminal (+3.3V)
16
VSS
-
Ground terminal
17 to 20
I/O-CD-BUS0 to
I/O-CD-BUS3
O
Serial data output to the CD-MP3 processor
21, 22
NC
-
Not used
23
O-DR-MUTE
O
Motor drive on/off control signal output to the motor/coil driver
24
I-REQ
I
Request signal input from the CD-MP3 processor
25
O-CD-BUCK
O
Serial data transfer clock signal output to the CD-MP3 processor
26
O-CD-CCE
O
Chip enable signal output to the CD-MP3 processor
27
O-CD-RST
O
System reset signal output to the CD-MP3 processor “L”: reset
28
O-LED
O
LED drive signal output terminal for standby indicator
29
I-iPod-TXD
I
Serial data input from the iPod connector
30
SCLK
-
Not used
31
O-iPod-RXD
O
Serial data output to the iPod connector
32
AVCC
-
Power supply terminal (+3.3V)
33
O-AUDIO-DATA
O
Serial data output to the electrical volume
34
O-AUDIO-CLK
O
Serial data transfer clock signal output to the electrical volume
35
AVSS
-
Ground terminal
36
I-P-MONI
I
Power monitor signal input terminal
Front panel key input terminal (A/D input)
Auto gain control signal input terminal
Power supply voltage detection signal input terminal
Front panel key input terminal (A/D input)
Hold signal input terminal
Subcode block sync signal input from the CD-MP3 processor
Ground terminal
iPod detection signal input terminal
Model setting terminal
Suf
fi
x setting terminal
48
I-TU-DO
I
Serial data input from the AM/FM DET
49, 50
NC
-
Not used
51 to 53
MD2 to MD0
-
Not used
54
I-RST
I
Reset signal input from the reset switch “L”: reset
55
O-TU-CE
O
Chip enable signal output to the AM/FM DET
56
O-TU-DI
O
Serial data output to the AM/FM DET
57
O-TU-CLK
O
Serial data transfer clock signal output to the AM/FM DET
58
VLCD
-
Terminal for doubler circuit capacitor connection to develop liquid crystal display drive volt-
age
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