38
CFD-E75
• MAIN BOARD IC801 CXP83624-035Q (SYSTEM CONTROLLER)
Pin No. Pin Name I/O Description
1 CD-WRQ I Interruption detection signal input from the LC78645NE (IC701)
2 RMC I Sircs remote control signal input from the remote control receiver (IC804)
3 BUZZER O Buzzer sound signal output
4 N.C O Not used (open)
5 CD-RES O System reset signal output to the LC78645NE (IC701) “L”: reset
6 CD CE O Chip enable signal output to the LC78645NE (IC701)
7 CD CL O Serial data transfer clock signal output to the LC78645NE (IC701)
8 CD DO I Serial data input from the LC78645NE (IC701)
9 CD DI O Serial data output to the LC78645NE (IC701)
10 CD DRF I Focus on/off detection signal input from the LC78645NE (IC701)
11 CD FSEQ I Synchronizing signal detection signal input from the LC78645NE (IC701)
12 V-DATA O
Serial data output to the electrical volume (IC320)
13 V-CLOCK O
Serial data transfer clock signal output to the electrical volume (IC320)
14 N.C O Not used (open)
15 MEGABASS O Mega bass on/off control signal output “L”: mega bass on
16 A-MUTE O Audio muting on/off control signal output to the electrical volume (IC320) “H”: muting on
17 N.C O Not used (open)
18
CD
O
Power on/off control signal output for the CD +6V power supply and CD function control signal
output to the TA2068N (IC301) “H”: CD power on (CD on)
19 P-CON O
Power on/off control signal output for the PLL low-pass filter circuit power supply and to the
power amplifier (IC390) “L”: standby mode, “H”: power on
20 CD DOOR I
CD lid open/close detection switch (S901) input terminal “L”: CD lid is closed
21 REG CHK I Regulator check signal input of the AC input or battery input “H” active
22
N.C O Not used (open)
23 KEY-1 I
Key input terminal (A/D input) S401 to S406 (POWER, STANDBY, RADIO BAND AUTO
PRESET, TUNE m –, TUNE M +, DSPL ENT MEM) keys input
24 KEY-2 I
Key input terminal (A/D input) S407 to S413 (MENU ALARM, x, u, VOLUME –,
VOLUME +, MEGA BASS, MODE) keys input
25 JOG-B I Jog dial pulse input from the rotary encoder (RE401 JOG DIAL) (B phase input)
26 JOG-A I Jog dial pulseinput from the rotary encoder (RE401 JOG DIAL) (A phase input)
27
SIMUKE CHECK
I Destination setting terminal
28 INIT O Initial setting terminal (Used for the Singapore, Taiwan, Korean and Argentina models)
29 SHIFT CLK O Shift clock output of the main system clock (4.19 MHz) “H” active
30 RST I
System reset signal input from the reset signal generator (IC843) “L”: reset
For several hundreds msec. after the power supply rises, “L” is input, then it changes to “H”
31 EXTAL I Main system clock input terminal (4.19 MHz)
32 XTAL O Main system clock output terminal (4.19 MHz)
33 VSS — Ground terminal
34 VL O Liquid crystal display drive bias control signal output terminal
35 to 37 VLC3 to VLC1 — Terminal for doubler circuit capacitor connection to develop liquid crystal display drive voltage
38 to 41 COM0 to COM3 O
Common drive signal output to the liquid crystal display (LCD801)
42 to 61 SEG0 to SEG19 O
Segment drive signal output to the liquid crystal display (LCD801)
62 to 64 N.C O Not used (open)
65 RADIO O
Power on/off control signal output for the radio +6V power supply “H”: radio power on
66 TU-CE O PLL chip enable signal output to the FM/AM PLL (IC2)
6-18. IC PIN FUNCTION DESCRIPTION
Ver 1.1
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