Read Sharp XL-1100 (serv.man10) Service Manual online
– 53 –
XL-1000H/1100H
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.
Used to decide the CD lid drive error to control it.
21*
KEY5 AN0/PA5
Input
CD servo auto adjustment mode selection input.
22*
KEY6 AN0/PA6
Input
Tape mechanism operating status detection input.
Decides the F.P/CAM-SW status with A/D value.
Decides the F.P/CAM-SW status with A/D value.
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
Enable output of TUNER PLL IC. "L" = OFF "H" = ON
29*
SBI1/P04
Output
Tape mechanism solenoid drive control output.
30*
SBT1/P05
Output
Tape mechanism motor drive control output.
31*
DK/BZER P06
Output
Recording/playback selection output of tape circuit.
"H" = Recording mode, "L" = Playback mode
"H" = Recording mode, "L" = Playback mode
32
RST/P27
Input
Reset signal input
33*
RMOUT P10
Input
CLOCK/TIMER/SLEEP button input.
34*
P11
Input
Tape run/END detection input. Decided as tape run if pulse is input.
35*
TM2IO P12
Output
Recording bias oscillation circuit control output.
"H" = Bias oscillation, "L" = oscillation stop.
"H" = Bias oscillation, "L" = oscillation stop.
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
Synchronous clock input with RDS IC.
41*
IRQ3 P23
Input
Jog dial UP pulse input.
42*
IRQ4 P24
Input
Jog dial DOWN pulse 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
53
SEG47 P62/A2
Output
LED illumination control of electric JOG dial. "H" = ON "L" = OFF
Pin No.
Function
Terminal Name Input/Output
In this unit, the terminal with asterisk mark (*) is (open) terminal which is not connected to the outside.
IC701 RH-iX0037SJZZ: System Microcomputer/FL driver (IX0037SJ) (1/2)
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