Eiki LC-HDT700, Service Manual

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IIC Bus D/A Converter (M62393FP Fan Control, IC7801)
Control Port Functions
Pin No. Function Name Function Pol.
Action
Stand-by Power On
1 Reset Input I
→
2 PW_SCLO_S5V IIC bus CLK I
→
3 PW_SDA0_S5V IIC bus Data I/O
→
4 FAN_CONT6 FAN_FN901 Control Voltage (Panel Cooling Fan) AO
→
0:FAN Max ~ 255:FAN Min
5 FAN_CONT5 FAN_FN902 Control Voltage (Panel Cooling Fan) AO
→
0:FAN Max ~ 255:FAN Min
6 FAN DRIVE B FAN_FN903 Drive AO
→
255:ON 0:OFF
7 FAN_CONT7 FAN_FN908 Control Voltage (PBS Cooling Fan) AO
→
(Open)
8 GND -
→
9 GND -
→
10 GND -
→
11 GND -
→
12 FAN_CONT4 FAN_FN904 Control Voltage (Lamp Cooling Fan) AO
→
0:FAN Max ~ 255:FAN Min
13 FAN_CONT3
FAN_FN905&FN906 Control Voltage (Set Exhaust
Fans small)
AO
→
0:FAN Max ~ 255:FAN Min
14 FAN_CONT2 FAN_FN903 Control Voltage (Lamp Cooling Fan) AO
→
0:FAN Max ~ 255:FAN Min
15 FAN_CONT1 FAN_FN907 Control Voltage (Power Cooling Fan) AO
→
0:FAN Max ~ 255:FAN Min
16 Power for Output Buffer (4.5V ~ 5.5V) -
→
17 Power 5V±10
％
-
→
18 Slave Address Setting Pin2 (5V) I
→
H
19 Slave Address Setting Pin1 (5V) I
→
H
20 Slave Address Setting Pin0 (5V) I
→
H
PIN PORT SIGNAL FUNCTION I/O NOTE
3 A3 -BNC/RCA BNC/RCA Switch Output O
4 A4 -IN1/IN2 IN1/IN2 Switch Output O
13 A13 HSOUT H-Sync Input I
14 A14 FRT_HS_OUT H-Sync Output for FRT O
204 J12 IN0VS V Sync Output O
171 J13 IN0HS H Sync Output O
131 K14 CG_HSYNC H-Sync Input from AD I
82 K15 CG_VSYNC V-Sync Input from AD I
232 L10 SI_HS H-SYnc Input from SI I
139 P10 SI_VS V-Sync Input from SI I
FPGA (XC3S50A, IC5201)