Sharp XL-30H Service Manual page 45

IC701 RH-iX0027SJZZ: System Control Microcomputer (IX0027SJ) (1/2)
Terminal Name Input/Output
Pin No.
1-4 COM3-COM0
5-7 VLC3-VLC1
8 VDD
9 OSC2
10 OSC1
11 VSS
12 XI
13 XO
14 MMOD
15 VREF-
16 KEY0 AN0/PA0
17 KEY1 AN0/PA1
18 KEY2 AN0/PA2
19 KEY3 AN0/PA3
20* KEY4 AN0/PA4
21* KEY5 AN0/PA5
22 KEY6 AN0/PA6
23* KEY7 AN7/PA7
24 VREF+
25 TXD SBO0/P00
26 RXD SBI0/P01
27 SBT0/P02
28 SBO1/P03
29 SBI1/P04
30 SBT1/P05
31 DK/BZER P06
32 RST/P27
33 RMOUT P10
34 P11
35 TM2IO P12
36 TM3IO P13
37 TM4IO P14
38 IRQ0 P20
39 SENS IRQ1/P21
40* IRQ2 P22
41 IRQ3 P23
42 IRQ4 P24
43* P30
44 P31
45 P32
46 LED0 WE/P50
47 LED1 RE/P51
48* LED2 CS/P52
49 LDE3/S51 A16/P53
50 LED4/S50 A17/P54
51 SEG49 P60/A0
52* SEG48 P61/A1
53 SEG47 P62/A2
In this unit, the terminal with asterisk mark (*) is (open) terminal which is not connected to the outside.
All manuals and user guides at all-guides.com
Output LCD common output terminal.
— LCD power supply terminal.
— Microcomputer power supply +5V.
Output Oscillator ground terminal for main clock. f=8MHz
Input Oscillator ground terminal for main clock. f=8MHz
— Microcomputer power supply GND.
Input Oscillator ground terminal for sub clock. f=32.768kHz
Output Oscillator ground terminal for sub clock. f=32.768kHz
Input Memory mode selection terminal.
— Power supply GND for AD converter.
Input CD lid status detection input.
Input Operation button input, Max-8 buttons.
Input Operation button input, Max-8 buttons.
Input MODEL/TUNER destination input.
Input Current detection of CD lid control motor.
Used to decide the CD lid drive error to control it.
Input CD servo auto adjustment mode selection input.
Input Tape mechanism operating status detection input.
Decides the F.P/CAM-SW status with A/D value.
Input Tuner signal meter (S meter) voltage input terminal.
— Power supply for A/D converter +5V.
Output Data output terminal to TUNER PLL IC.
Input Data input from TUNER PLL IC
Output Synchronous clock output with TUNER PLL IC
Output Enable output of TUNER PLL IC. "L" = OFF, "H" = ON
Output Tape mechanism solenoid drive control output.
Output Tape mechanism motor drive control output.
Output Recording/playback selection output of tape circuit.
"H" = Recording mode, "L" = Playback mode
Input Reset signal input
Input CLOCK/TIMER/SLEEP button input.
Input Tape run/END detection input. Decided as tape run if pulse is input.
Output Recording bias oscillation circuit control output.
"H" = Bias oscillation, "L" = oscillation stop.
Output Recording bias oscillation frequency selection control output.
Input Power (POWER) button input detection.
Input Switches to the HALT mode when changing to . "L" at power failure detection input.
Input Remote control signal input.
Input Synchronous clock input with RDS IC.
Input Jog dial UP pulse input.
Input Jog dial DOWN pulse input.
Output SURROUND control output.
Output POWER IC STAND-BY terminal CONTROL.
Output Power mute output. "H" = MUTE ON, "L" = MUTE OFF
Output CD servo power supply circuit control output. "H" = CD power ON, "L" = CD power OFF
Output Main TRANS RELAY CONTROL. "H" = ON, "L" = OFF
Input Data input from RDS IC.
Input Radio stereo broadcast reception detection input. "L" = During stereo broadcast reception
Input Broadcast reception status detection input. "L" = During broadcasting signal reception
Output LCD backlight control signal output. "H" = Backlight ON, "L" = Backlight OFF
Output LCD segment output. "H" = ON, "L" = OFF
Output LED illumination control of electric JOG dial. "H" = ON, "L" = OFF
Function
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XL-30H/30W