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
37, 38 I-KEY1, I-KEY2 I Front panel key input terminal (A/D input)
39 I-TU-ANSD I Auto gain control signal input terminal
40 I-5V/9V-DET I Power supply voltage detection signal input terminal
41 I-KEY-WAKE-UP/VOL I Front panel key input terminal (A/D input)
42 I-HOLD I Hold signal input terminal
43 O-CD-SBSY I Subcode block sync signal input from the CD-MP3 processor
44 GND - Ground terminal
45 I-iPod-DET I iPod detection signal input terminal
46 I-MODEL I Model setting terminal
47 I-SUFFIX I Suffi 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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TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com
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