(X14-) IC1 : µ-COM
PORT No. PORT NAME I/O FUNCTION OPERATING CONDITION
1 XIN I µ-com clock. (4.5MHz) -
2 GND - GND. -
3L DATA L I LCD driver data. -
4L DATA S OLCD driver data. -
5L CLK O LCD driver clock. -
6 L CE O LCD driver chip enable. -
7SDA I/O E-volume data. -
8 PLL DATA I/O Tuner data. -
9PLL CLK O Tuner clock. -
10 SD I Tuner signal detection. "H" : Tuner signal exists.
"L" : Tuner signal does not exist.
11 DATA C I Changer data. -
12 DATA H OHead unit data. -
13 CH CLK I/O Changer clock. -
14 - - No connection. -
15 MOTOR O Mechanism motor. -
16 SCL O E-volume clock. -
17-24 - - No connection. -
25 AM+B OAM power supply. -
26 FM+B O FM power supply. -
27 PACK IN I Cassette tape pack-in. "L" : Pack in. "H" : Ejection.
28 FF/REW I FF/REW signal. "L" : FF/REW. "H" : Play.
29,30 GND - GND. -
31 VDD - VDD. -
32 REQ C IRequest from changer. -
33 MUTE O Mute. -
34 CH CON OChanger control. -
35 REQ H O Request to head unit. -
36 SVR O Power IC (IC4) discharge control. -
37 AMP STBY O Power IC (IC4) stand-by. -
38 AMP MUTE O Power IC (IC4) mute. -
39 P CON O P.CON for external amplifier. -
40 ANT. CON OPower antenna. -
41 SW5 OCircumambient circuit power supply control. -
42 ILL O Illumination. -
43 - - No connection. -
44 BEEP O Buzzer. (2KHz) -
45-47 - - No connection. -
48 ROLL OFF I Destination switch. -
49 N.CAN I Destination switch. -
50 SEL1 IDestination switch. -
51 SEL2 I Destination switch. -
52 --
No connection. -
53 EQ MUTE O Tape equalizer mute. -
54 FWD/REV I FWD/REV. -
55 - - No connection. -
56 REMO IRemote control. -
57-60 - - No connection. -
61 ACC DET I ACC detection. -
62 BU DET I Back-up detection. -
63 S METER I Tuner signal meter. -
64 PANEL IPanel on/off. "L" : Panel on. "H" : Panel off.
65,66 GND - GND. -
67 HOLD I Clock stop. -
68 VDD - VDD. -
69,70 GND -GND. -
71,72 - - No connection. -
73 VDD - VDD. -
74,75 GND - GND. -
76 VSS - GND. -
77,78 - - No connection. -
79 GND - GND. -
80 XOUT O µ-com clock. (4.5MHz) -
