HCD-EX6/EX6T/EX8/EX8T/EX9/EX9T
44
Pin No. Pin Name I/O Description
1 SEG32 O Segment drive signal output for the liquid crystal display panel
2
O-SP-RELAY-ON/
TC ON/SW ON
O
Speaker relay drive signal output, tape power ON/OFF control signal output (HCD-EX6T/
EX8T/EX9T) and subwoofer function ON/OFF control signal output (HCD-EX9/EX9T)
3 O-POWER O Main power ON/OFF control signal output (H: main power ON)
4 O-5V-ON O CD and VBUS power ON/OFF control signal output (H: CD and VBUS power ON)
5 I-3CD-SW3 I CD motor disc tray close switch detection signal input from the CD mechanism deck
6 I-3CD-SW2 I CD motor disc tray address switch detection signal input from the CD mechanism deck
7 I-3CD-SW1 I CD motor disc tray open switch detection signal input from the CD mechanism deck
8 O-3CD-M1+ O CD spindle motor drive (+) signal output for the CD mechanism deck
9 I-RMC I Remote control signal input from the remote control signal receiver
10 O-3CD-M1– O CD spindle motor drive (–) signal output for the CD mechanism deck
11 O-3CD-M2+ O CD sled motor drive (+) signal output for the CD mechanism deck
12 O-3CD-M2– O CD sled motor drive (–) signal output for the CD mechanism deck
13 X0A I Sub system clock signal input (32.768 kHz)
14 X1A O Sub system clock signal output (32.768 kHz)
15 VCC — Power supply pin (+3.3 V)
16 VSS — Ground
17 O-CD-CE O Chip enable signal output for the CD-MP3 processor
18 O-CD-CL O Clock signal output for the CD-MP3 processor
19 I-CD-DI I Serial data input from the CD-MP3 processor
20 O-CD-DO O Serial data output for the CD-MP3 processor
21 I-3CD-CHACK I Chucking switch detection signal input from the CD mechanism deck
22 I-3CD-STOCK I Stock switch detection signal input from the CD mechanism deck
23 O-CD-M-MUTE O CD motor drive ON/OFF mute control signal output for the CD motor/coil driver
24 O-CD-RST O System reset signal output for the CD-MP3 processor
25 O-DIMMER1 O Volume LED dimmer control signal output
26 O-CD-ON O Digital power supply control signal output for the CD-MP3 processor
27 O-LED-VOL O Volume LED drive control signal output
28 O-LED-LCD O LCD back light LED drive control signal output
29 I-USB-TXD I USB TX signal input from the USB controller
30 O-TP_REC_MUTE O Tape REC mute signal output for the tape mechanism deck
31 O-USB-RXD O USB RX signal output for the USB controller
32 AVCC — Power supply pin (+3.3 V)
33 O-USB-SLEEP O Sleep control signal output for the USB controller
34 O-USB-RST O System reset signal output for the USB controller
35 AVSS — Ground
36 I-P-MONI I Power monitor signal input
37, 38 I-KEY1, I-KEY2 I Front panel key signal input (A/D input)
39 I-TU-ANSD I Auto gain control signal input
40 I-5V/9V-DET I Power supply voltage detection signal input
41 I-KEY-WAKE-UP/VOL I Front panel key wake-up signal input/volume control signal input
42 I-HOLD I Micon stop mode control signal input
43 I-LEVEL I Audio level detection signal input
44 GND — Ground
45 I-3CD-CLOSE/OPEN I Disc tray close/open detection signal input from the CD mechanism deck
46 I-MODEL I Model setting pin
47 I-SUFFIX/TP-STATE I Destination setting pin/tape state detection signal input (HCD-EX6T/EX8T/EX9T)
48 I-TU-DO I Serial data input from the AM/FM DET
49 O-I2C-FUNC-DATA O Serial data output for the electrical volume
50 O-I2C-FUNC-CLK O Serial data transfer clock signal output for the electrical volume
51 MD2 — Not used. (Fixed at L in this set)
52 MD1 — Not used. (Connect to VDD)
53 MD0 — Not used. (Fixed at H in this set)
54 I-RST I Reset signal input (L: reset)
55 O-TU-CE O Chip enable signal output for the AM/FM DET
56 O-TU-DI O Serial data output for the AM/FM DET
57 O-TU-CLK O Serial data transfer clock signal output for the AM/FM DET
58 VLCD —
Terminal for doubler circuit capacitor connection to develop liquid crystal display panel drive
voltage
PANEL BOARD IC301 MB90F831PF-G-SPE1 (SYSTEM CONTROLLER)
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