Sanyo PLC-XU47 Service Manual page 45

Control Port Functions
● Output Expander (IC1801, TC74LCX574FT) Port Functions
Pin No. Name
1 OE
2 D0
3 D1
4 D2
5 D3
6 D4
7 D5
8 D6
9 D7
10 GND
11 CK
12 Q7
13 Q6
14 Q5
15 Q4
16 Q3
17 Q2
18 Q1
19 Q0
20 Vdd
● Output Expander (IC1802, TC74LCX574FT) Port Functions
Pin No. Name
1 OE
2 D8
3 D9
4 D10
5 D11
6 D12
7 D13
8 D14
9 D15
10 GND
11 CK
12 Q7
13 Q6
14 Q5
15 Q4
16 Q3
17 Q2
18 Q1
19 Q0
20 Vdd
● Output Expander (IC1803, TC74LCX574FT) Port Functions
Pin No. Name
1 OE
2 D0
3 D1
4 D2
5 D3
6 D4
7 D5
8 D6
9 D7
10 GND
11 CK
12 Q7
13 Q6
14 Q5
15 Q4
16 Q3
17 Q2
18 Q1
19 Q0
20 Vdd
Function
IO_ENB
D0
D1
D2
D3
D4
D5
D6
D7
GND
ADD1_CS
SC_SW
READY_LED
LAMP_LED
TEMP_LED
PWR_LED
KO3
KO2
KO1
Power Supply +3.3V
Function
IO_ENB
D8
D9
D10
D11
D12
D13
D14
D15
GND
ADD1_CS
--
TURBO_ST
SH_B_ST
SH_G_ST
SH_R_ST
IRM_RS
MCLK_SW
--
Power Supply +3.3V
Function
IO_ENB
D0
D1
D2
D3
D4
D5
D6
D7
GND
ADD1_CS
--
--
--
LAMPDC_ON
DC_ON
ON_3.3V
FAN_SW2
FAN_SW1
Power Supply +3.3V
Output Port Chip Select
SCART input switch
Ready LED
Lamp Replace LED
Warning Temperature LED
AC Power LED
KEY Scan Output
KEY Scan Output
KEY Scan Output
Output Port Chip Select
Strobe for Turbo (IC9401)
Strobe for B sample & hold (IC501)
Strobe for G sample & hold (IC531)
Strobe for R sample & hold (IC561)
Reset for IC401
Switch for MCLK
Output Port Chip Select
Drives Lamp Ballast Unit
Drives 15.5V Power Supply
Drives 3.3V Power Supply
Not used
Drives FAN_B, FAN_C Power Supply
-
-45-
I/O
I
I
I
I
I
I
I
I
I
-
Enable = L I
SCART = H O
Ready = H O
Replace = H O
Warning = H O
ON = H O
O
O
O
-
I/O
I
I
I
I
I
I
I
I
I
-
Enable = L I
O
O
O
O
O
O
O
O
-
I/O
I
I
I
I
I
I
I
I
I
-
Enable = L I
O
O
O
Power-on=H O
Power-on=H O
Power-on=H O
O
Power-on=H O