Sharp XL-3000V service manual Pin No Terminal Name Input/Output Function

XL-3000V

IC701 RH-iX0038SJZZ: System Microcomputer/FL driver (IX0038SJ) (1/2)

Pin No.	Terminal Name	Input/Output		Function
1-4	COM3-COM0	Output	LCD common output terminal.
5-7	VLC3-VLC1	—	LCD power supply terminal.
8	VDD	Input	Microcomputer power supply +5V.
9	OSC2	Output	Oscillator ground terminal for main clock. f=8MHz
10	OSC1	Input	Oscillator ground terminal for main clock. f=8MHz
11	VSS	—	Microcomputer power supply GND.
12	XI	Input	Oscillator ground	terminal for sub clock. f=32.768kHz
13	XO	Output	Oscillator ground	terminal for sub clock. f=32.768kHz
14	MMOD	Input	Memory mode selection terminal.
15	VREF-	—	Power supply GND for AD converter.
16	KEY0 AN0/PA0	Input	CD lid status detection input.
17	KEY1 AN0/PA1	Input	Operation button input, Max-8 buttons.
18	KEY2 AN0/PA2	Input	Operation button input, Max-8 buttons.
19	KEY3 AN0/PA3	Input	MODEL/TUNER destination input.
20	KEY4 AN0/PA4	Input	Current detection of CD lid control motor.
			Used to decide the CD lid drive error to control it.
21	KEY5 AN0/PA5	Input	Fan motor auto adjustment mode selection input.
22*	KEY6 AN0/PA6	Input
23*	KEY7 AN7/PA7	Input	Tuner signal meter (S meter) voltage input terminal.
24	VREF+	Input	Power supply for A/D converter +5V.
25	TXD SBO0/P00	Output	Data output terminal to TUNER PLL IC.
26	RXD SBI0/P01	Input	Data input from TUNER PLL IC.
27	SBT0/P02	Output	Synchronous clock output with TUNER PLL IC.
28	SBO1/P03	Output	VIDEO CD DECORDER DATA output.
29	SBI1/P04	Output	VIDEO CD DECORDER DATA input.
30	SBT1/P05	Output	VIDEO CD DECORDER CLOCK signal.
31	DK/BZER P06	Output	VIDEO CD DECORDER BUSY signal.
32	RST/P27	Input	Reset signal input.
33*	RMOUT P10	Input	CLOCK/TIMER/SLEEP button input.
34	P11	Input	Tape run/END detection input.
35	TM2IO P12	Output	CD LID output signal.
36*	TM3IO P13	Output	Recording bias oscillation frequency selection control output.
37	TM4IO P14	Input	Power (POWER) button input detection.
38	IRQ0 P20	Input	Switches to the HALT mode when changing to . "L" at power failure detection input.
39	SENS IRQ1/P21	Input	Remote control signal input.
40	IRQ2 P22	Input	VIDEO CD DECORDER STROBE signal.
41*	IRQ3 P23	Input
42*	IRQ4 P24	Input
43	P30	Output	SURROUND control output.
44	P31	Output	POWER IC STAND-BY terminal CONTROL.
45	P32	Output	Power mute output. "H" = MUTE ON "L" = MUTE OFF
46	LED0 WE/P50	Output	CD servo power supply circuit control output. "H" = CD power ON "L" = CD power OFF
47	LED1 RE/P51	Output	Main TRANS RELAY CONTROL. "H" = ON "L" = OFF
48*	LED2 CS/P52	Input	Data input from RDS IC.
49	LDE3/S51 A16/P53	Input	Radio stereo broadcast reception detection input. "L" = During stereo broadcast reception
50	LED4/S50 A17/P54	Input	Broadcast reception status detection input. "L" = During broadcasting signal reception
51	SEG49 P60/A0	Output	LCD backlight control signal output. "H" = Backlight ON, "L" = Backlight OFF
52	SEG48 P61/A1	Output	Amp. signal detection.
53	SEG47 P62/A2	Output	LED illumination control. "H" = ON "L" = OFF

In this unit, the terminal with asterisk mark (*) is (open) terminal which is not connected to the outside.

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