Sharp LC-22SV6U Service Manual page 22

LC-22SV6U
Pin functions of microprocessor IC (IC3501) RH-iXA705WJN1Q
Pin No. Pin name
1 VHOLD1
2 HLF1
3 N. C.
4 N. C.
5 1BIT_5VCONT
6 CSYNC
7 IREM1
8 BYTE
9 CNVSS
10 Xcin
11 Xcout
12 RESET
13 XOUT
14 VSS
15 XIN
16 VDD
17 OSCIN
18 OSCOUT
19 PSWIN
20 MP_RCS
21 BLK
22 N. C.
23 DAC1CS
24 N. C.
25 SCL1
26 SDA2
27 MP_RDA
28 N. C.
29 N. C.
30 N. C.
31 N. C.
32 R
33 G
34 B
35 TxD
36 RxD
37 SCLK
38 BUSY
39 1BIT_POW
40 1BIT_RST
41 MREADY/EPM
42 L_ERR
Pin function Description
VHOLD1 For CCD
HLF1 For CCD
Output port L output fixed
Output port L output fixed
Output port One-bit amplifier regulator control
TB1IN Composite sync signal
TB0IN Remote control signal input
BYTE GND
CNVss GND in Flash writing (3.3V)
Xcin 32-kHz oscillation input
Xcout 32-kHz oscillation output
RESET Reset input
Xout System clock output
Vss GND
Xin System clock input
Vcci Power (3.3V)
OSC1 OSD oscillation input
OSC2 OSD oscillation output
INT1 Main power input
Input port G/A chip select for read
UUT1 OSD blank output
OUT2 –
Output port Gradation DAC1 chip select
Output port L output fixed
Output port I2C bus clock output
Input/output port I2C bus data input/output
Input port G/A data input for read
Output port L output fixed
Output port L output fixed
Output port L output fixed
Output port L output fixed
Output port OSD R signal output
Output port OSD G signal output
Output port OSD B signal output
Output port Flash write
Input port Flash write
CLK Flash write
RTS Flash write
Output port 1-bit amplifier power relay control
Output port 1-bit amplifier AD reset
Input port External bus mode shift input/Flash write
Input port Fluorescent lamp error detect output
22
H: Normal
L: Reset
H: Main power off
L: Main power on
H: Normal
L: External bus mode shift request
H: Error
L: Normal