Function Table Of Ic - Sharp XL-520W Service Manual

XL-520W/CP-520
IC701 RH-iX0189AWZZ:System Microcomputer(iX0189AW) (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 AREA
17 KEY1 AN0/PA1
18 KEY2 AN0/PA2
19 POWER
20* VSM
21 F.P
22 RUN PLS
23 CAM SW
24 VREF+
25 DI
26 DO
27 CL
28 VDI
29 VCE
30 VCL
31 CE
32 RESET
33* —
34 P-MUTE
35 P-CONT
36 CD+B
37 FUNC
38 SYS STOP
39 REMOCON
40* CLE
41 STEREO
42 SD
43* ID
44* DATA
45 CD RES
46 CEE
47 BUCK
48 R-MUTE
49 LED2
50 LED3
51 SOL
52 MOT
In this unit, the terminal with asterisk mark (*) is (open) terminal which is not connected to the outside.

FUNCTION TABLE OF IC

Output LCD COMMON output terminal
— LCD power terminal
— Microcomputer power supply +5V.
Output Main clock oscillator connection terminal f=8MHz
Input Main clock oscillator connection terminal f=8MHz
— Microcomputer power supply GND
Input Sub-clock oscillator connection terminal f=32.768kHz
Output Sub-clock oscillator connection terminal f=32.768kHz
Input Memory mode selection terminal
— Power supply for AD converter GND
Input Destination detection input this terminal serves as an A/D input port.
When resetting is performed, the destination setting is detected based on the DC voltage.
Input Operation key input, max. 8 keys
Input Operation key input, max. 8 keys
Input POWER key input detection
Input Tuner signal meter (S meter) voltage input terminal
IX0189AW: Unused terminal (regular input port)
Input Cassette tape erroneous erasing preventing lug detection input
H: Record inhibited
Input Tape run/END detection input If pulse input is detected, it is judged that the tape is running.
Input Cassette mechanism operation status detection input
H: Mechanism stop
— A/D converter power supply +5V
Output Terminal to output data to TUNER PLL IC
Input Data input from TUNER PLL IC
Output TUNER PLL IC sync clock output
Output Terminal to output data to VOL IC
Output VOL IC chip enable output
Output VOL IC sync clock output
Output TUNER PLL IC enable output
Input RESET signal input
— No Connect
Output Power mute output
Output Power amplifier operation control output
H: Amplifier operation ON
Output CD servo power circuit control output
Input Function setting input
Input Power failure detection input L: Change to HALT mode
Input Remote controller signal input
Input RDS IC sync clock input
Input Radio stereo broadcast reception detection input
Input Broadcast reception status detection input
Input RDS signal reception status detection
Input Data input from RDS IC
Output LC78623E RESET signal output
Output TC9284F chip enable terminal
Output TC9284F data sync clock output
Output TUNER mute output
Output IND LED control output (when SRS2 is on)
Output IND LED control output (when SRS1 is on)
Output Cassette mechanism solenoid drive control output
Output Cassette mechanism motor drive control output
Function
L: Record enable
L: Mechanism in operation
"L"=OFF "H"=ON
"L"=OFF "H"=ON
"H"=MUTE OFF "L"=MUTE ON
L: Amplifier operation OFF
H: CD power ON
Reset mode: H: 4-step selection
L: Broadcast wave reception
H: RDS not received
L: BUS terminal active
"H"=MUTE ON "L"=MUTE OFF
H: LED goes out
H: LED goes out
– 36 –
L: CD power OFF
L: 3-step selection
L: Stereo broadcast reception
L: RDS received
L: LED lights
L: LED lights