Sanyo PLV-55WM1 Service Manual page 90

Control Port Functions
● Output Bus Buffer (IC1801, TC74LCX574FT) ● Ou
utput us Buffer
Pin No. Pin No. Na Name
1 OE
2 - 9 D0 - D7
10 GND
11 CK
12 Q7
13 Q6
14 Q5
15 Q4
16 Q3
17 Q2
18 Q1
19 Q0
20 Vdd
● Output Bus Buffer (IC1802, TC74LCX574FT)
Pin No. Name
1 OE
2 - 9 D0 - D7
10 GND
11 CK
12 Q7
13 Q6
14 Q5
15 Q4
16 Q3
17 Q2
18 Q1
19 Q0
20 Vdd
● Output Bus Buffer (IC1803, TC74LCX574FT)
Out ut t p tpu u s Buffe e r ( ( IC18
Pin No. Name
1 OE
2 - 9 D0 - D7
10 GND
11 CK
12 Q7
13 Q6
14 Q5
15 Q4
16 Q3
17 Q2
18 Q1
19 Q0
20 Vdd
● Output Bus Buffer (IC1804, TC74LCX574FT)
Pin No. Name
1 OE
2 - 9 D0 - D7
10 GND
11 CK
12 Q7
13 Q6
14 Q5
15 Q4
16 Q3
17 Q2
18 Q1
19 Q0
20 Vdd
(IC 801 TC 4LCX574FT)
Func Function on
IO_ENB
D0 - D7
GND
CS0 Output Port Chip Select
ECO_LED ECO LED
READY_LED Ready LED
LAMP_LED Lamp Replace LED
TEMP_LED Warning Temperature LED
PWR_LED AC Power LED
KO3 KEY Scan Output
KO2 KEY Scan Output
KO1 KEY Scan Output
Power Supply +3.3V
Function
IO_ENB
D0 - D7
GND
CS0 Output Port Chip Select
MUTE_M Not used
PANEL_SW
S/H_B_ST Strobe for B sample & hold (IC501)
S/H_G_ST Strobe for G sample & hold (IC1501)
S/H_R_ST Strobe for R sample & hold (IC2501)
DVI_RST Reset for DVI
5V_SW Switch for Power ON/Standby
FAN_SW Switch for FAN
Power Supply +3.3V
C18 8 03 3 , T T C74 4 LC
Function
IO_ENB
D0 - D7
GND
CS2 Output Port Chip Select
RESET_SM_PW
RESET_IP_PW
LAMP_POW
DVI_ENB_PW
AV_ENB_PW
PC_ENB_PW
DDC_SW2_PW
DDC_SW1_PW
Power Supply +3.3V
Function
IO_ENB
D0 - D7
GND
CS2 Output Port Chip Select
Not used
Not used
Not used
Not used
Not used
AD_OUT_PW
SYS_SW
LPS_PW
Power Supply +3.3V
- 90 -
I/O I/O
I
I
-
Enable = L I
Eco = H O
Ready = H O
Replace = H O
Warning = H O
ON = H O
O
O
O
-
I/O
I
I
-
Enable = L I
O
ON = H O
O
O
O
O
ON = H O
ON = H O
-
I/O
I
I
-
Enable = L I
O
O
O
O
O
O
O
O
-
I/O
I
I
-
Enable = L I
O
O
O
O
O
O
O
O
-