54
HCD-EC55/EC77/GX99
PANEL BOARD IC301 MB90803PF-G-130E1 (SYSTEM CONTROLLER)
Pin No. Pin Name I/O Description
1 O-POWER O Power relay control signal output terminal
2 O-AMP-ON O AMP control signal output terminal
3 O-FUNC-CLK O Function select control serial data signal to IC602
4 O-FUNC-DATA O Function select control serial clock signal to IC602
5 I-CD-SW3 I SW3 control input signal from CD
6 I-CD-SW2 I SW2 control input signal from CD
7 I-CD-SW1 I SW1 control input signal from CD
8 O-CD-M1+ O M1+ control output signal terminal
9 I-RMC I Remote sensor input signal terminal
10 O-CD-M1– O M1– control output signal terminal
11 O-CD-M2+ O M2+ control output signal terminal
12 O-CD-M2– O M2– control output signal terminal
13 X0A O Resonator output terminal (32.768KHz)
14 X1A I Resonator input terminal (32.768KHz)
15 VCC — Power supply terminal (+3.3V)
16 VSS — Ground terminal
17 I/O-CD-BUS0 O CD data line to BD90
18 I/O-CD-BUS1 O CD data line to BD90
19 I/O-CD-BUS2 O CD data line to BD90
20 I/O-CD-BUS3 O CD data line to BD90
21 I-CD-CHACK I CD chack switch (SW7) input terminal from BD90
22 I-CD-CLOSE I CD close switch (SW6) input terminal from BD90
23 I-CD-STOCK I CD stock switch (SW5) input terminal from BD90
24 I-CD-OPEN I CD open switch (SW8) input terminal from BD90
25 O-CD-BUCK O CD clock output terminal
26 O-CD-CCE O CD chip select enable output terminal
27 O-CD-RST O Zipang reset control output terminal
28 O-LED-STBY O STBY -LED control signal output terminal
29 I-CD-ZDET O ZDET output terminal
30 O-CD-M-MUTE O Motor driver mute signal output terminal
31 O-CD-REQ O CD DSP MP3 serial data request signal output terminal
32 AVCC — Power supply terminal (+3.3V)
33 I-TU-DO O TU data output signal terminal
34 O-TP-REC-MUTE O Tape REC mute signal output terminal (Except US, CND)
35 AVSS — Ground terminal
36 I-P-MONI I Power monitor signal input terminal
37 I-KEY1 I KEY-CD board control signal (KEY-1) input terminal
38 I-KEY2 I KEY-RIGHT board control signal (KEY-2) input terminal
39 I-TU-ANSD I Tuner analog SD input terminal
40 I-TP-STATE I Tape deck statement monitor terminal (US, CND not used (Fixed to “L”))
41 I-KEY-WAKE I KEY-LEFT board control signal (KEY-0) input terminal
42 I-HOLD I IC301 stop mode control input terminal
43 O-CD-SBSY I CD-SBSY signal input terminal
44 GND — Ground terminal
45 O-LED O LCD back light control output terminal
46 I-MODEL I Fixed model input terminal
47 I-SUFFIX I Fixed model suffix input terminal
48 I-RE-VOL I Input signal from the volume encoder
Ver. 1.2
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