Sanyo PLC-XE40, Service Manual

Page: 49 / 96

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Control Port Functions
IIC Bus DA Converter Port Functions (IC3531)
PIN
NO
. NAME FUNCTION ACTION I/O
1 R Reset "H": Fixed I
2 SCL IIC SCL "L": Active I/O
3 SDA IIC SDA "L": Active I/O
4 Ao7 REF_R O
5 Ao8 REF_G O
6 Ao9 REF_B O
7 Ao10 FAN_CONT_A 0xFFh:min 0x00h:Max O
8 Ao11 FAN_CONT_2 0xFFh:min 0x00h:Max O
9 Ao12 Not used O
10 VrefL Lower Ref. Voltage for D/A Convertor GND I
11 VrefU1 Lower Ref. Voltage for D/A Converter(CH7~CH12)Vcc(Standby 5V) I
12 GND GND GND I
13 VrefU2 Upper Ref. Voltage for D/A Convertor CH1~CH6)Vcc(Standby 5V) I
14 Ao1 Not used O
15 Ao2 Not used O
16 Ao3 Not used O
17 Ao4 R_V1 Video signal reference voltage R O
18 Ao5 G_V1 Video signal reference voltage B O
19 Ao6 B_V1 Video signal reference voltage B O
20 Vcc Power for Digital Vcc(Standby 5V) I
21 Vdd Power for Analog Vcc(Standby 5V) I
22 CS2 Chip Select 2 "H": Fixed I
23 CS1 Chip Select 1 "H": Fixed I
24 CS0 Chip Select 0 "L": Fixed I
I/O Expander Port Functions (IC1801)
PIN NO. NAME FUNCTION ACTION I/O
8 P7 S_SW Scart switch H: Scart O
20 XCS CS0 I
21 XRD RD I
22 XWR WR I
34 WAKEUP WAKEUP I
36 RST RESET L- H: Reset I
38 XI XTAL IN I
39 XO XTAL OUT O
48 P21 DDC_SW2 n/a O
49 P22 ECO_SW n/a O
50 P23 S/CV_SW S-Video/Video Switch H: Composite Video-in O
51 P24 SC_SW SCART In Switch H: Scart In O
52 P25 RESET_N O
53 P26 LED_SW LED Drive Switch H: On O
54 P27 USB_VBUS I
61 AIN1 Option Switch I
62 AIN2 Option Switch I
63 AIN3 Option Switch I
64 AIN4 Option Switch I
65 AIN5 Option Switch I
66 AIN6 Option Switch I
67 AIN7 Option Switch I
68 AIN8 Option Switch I
79 P39 I/O_R/C I
81 DMINUS USB_D- I
82 DPLUS ISB_D+ I
91 P11 SCLK_I/O I/O
92 P12 SDATA_I/O O
98 P16 PC1/PC2_SW L: PC1, H: PC2 O
99 P17 PCAV_SW n/a O
100 P18 DVI_SW n/a O