Eiki LC-X71 LC-X71L service manual IIC Bus D/A Converter, IC281, M62393, IC7801, M62399

Control Port Functions

Pin No.	Function Name	Function		Polarity	I/O
68	M/A_PF	Power Fail Detection M/A		L: Error	I
69	FAN_PF	Power Fail Detection FAN		L: Error	I
70	SWF_1.2V_PF	Power Fail Detection SWF_1.2V		L: Error	I
71	SWF_2.5.V_PF	Power Fail Detection SWF_2.5V		L: Error	I
72	VDEC_1.8V_PF	Power Fail Detection VDEC_1.8V		L: Error	I
73	FPGA_1.5V_PF	Power Fail Detection FPGA_1.5V		L: Error	I
74	GAM_15.5V_PF	Power Fail Detection GAM_15.5V		L: Error	I
75	S3.3V	-		-	-
76	GND	-		-	-
77	MAIN_6V_PF	Power Fail Detection MAIN_6V		L: Error	I
78	MAIN_3.3V_PF	Power Fail Detection MAIN_3.3V		L: Error	I
79	GND	-		-	-
80	AD_3.3V_PF	Power Fail Detection AD_3.3V		L: Error	I
81	GND	-		-	-
82	AD_5V_PF	Power Fail Detection AD_5V		L: Error	I
83	GAM_1.8V_PF	Power Fail Detection GAM_1.8V		L: Error	I
84	(Not used)			L fixed	O
85	GND	-		-	-
86	(Not used)			L fixed	O
87	S3.3V	-		-	-
88	(Not used)			L fixed	O
89	PJ_SH_UART1	Command for PJ-Net (SH:RXD)			I
90	SH_PJ_UART1	Command for PJ-Net (SH:TXD)			O
91	GND	-		-	-
92	(Not used)			L fixed	O
93	GND	-		-	-
94	(Not used)			L fixed	O
95	IRQ0	Interrupt Output (Level Output)		Active H	O
96	(Not used)			L fixed	O
97	PRODUCT_OPT1	Product Option (2 port)			I
98	PRODUCT_OPT2	Product Option (2 port)			I
99	GND	-	-	-
100	GND	-	-	-

●IIC Bus D/A Converter

IC Ref. No	Pin	I/O	Signal Name	Function	Note
	4	O	(Not used)
	5	O	(Not used)
IC281	6	O	(Not used)
	7	O	(Not used)
M62393	12	O	(Not used)
	13	O	(Not used)
	14	O	(Not used)
	15	O	VOLUME
	16	-	Vcc	Power Supply for Output Buffer	+5V
	18	I	CS2	Slave address setting port_2	(Vdd)
	19	I	CS1	Slave address setting port_1	(Vdd)
	20	I	CS0	Slave address setting port_0	(GND)
	4	O	FANCONT1
	5	O	FANCONT2
IC7801	6	O	FAN_6_DRIVE
	7	O	(Not used)
M62399	12	O	FAN_7_CTL
	13	O	FAN_6_CTL
	14	O	FAN_5_CTL
	15	O	FAN_4_CTL
	16	-	Vcc	Power Supply for Output Buffer	+16V
	18	I	CS2	Slave address setting port_2	(Vdd)
	19	I	CS1	Slave address setting port_1	(Vdd)
	20	I	CS0	Slave address setting port_0	(Vdd)

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