Sanyo PLC-XU47 Service Manual page 46

Control Port Functions
● Output Expander (IC1804, 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
Function
IO_ENB
D8
D9
D10
D11
D12
D13
D14
D15
GND
ADD1_CS
MUTE
CG-FILT
FILT_480P/575P
CABLE_SW
PC/AV_SW
S/CV_SW
MONIT_OUT
PC1/PC2_SW
Power Supply +3.3V
Output Port Chip Select
Mute Output
Filter-on at RGB signal
Filter-on at 480p/575p signal
PC/AV Mode switch
S-Video/Video switch
PC2 Monitor out Mode
PC1/PC2 Mode switch
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I/O
I
I
I
I
I
I
I
I
I
-
Enable = L I
Mute-on=H O
O
O
O
PC=H O
S-Video=H O
PC2 MONITOR=H O
PC1=H O
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