B-301 (REV. B) Sound card Settings and Configuration

Card Type	Sound card
Chipset Controller	ES488
I/O Options	CD audio in, CD-ROM interface (2), line in, line out, microphone in (2), speaker out, volume
Maximum DRAM	N/A

CONNECTIONS
Purpose	Location	Purpose	Location
Speaker out	J1	Mistumi CD-ROM interface	JP105
Microphone in	J2	CD audio in	JP109
Line in	J3	External control (see table below)	JP110
Panasonic CD-ROM interface	J7	Sound output (left)	JP112
External microphone in	JP101	Volume	VR
Sound output	JP102

EXTERNAL CONTROL CONNECTION/ JP110
Purpose	Location
Active low/read, port 201h	Pin 1
External microphone in	Pin 2
Active low/write, port 201h	Pin 3
FM output	Pin 4
Sound out (left)	Pin 5
Ground	Pin 6

INTERRUPT SELECTION
IRQ		JP1
»	7	Pins 1 & 2 closed
	2	Pins 7 & 8 closed
	3	Pins 5 & 6 closed
	5	Pins 3 & 4 closed

BASE I/O ADDRESS SELECTION
Address		JP4
»	220h	Pins 3 & 7, 4 & 8 closed
	240h	Pins 1 & 5, 2 & 6 closed

DMA SELECTION
Channel		JP2	JP3
»	1	Pins 1 & 2 closed	Pins 1 & 2 closed
	3	Pins 3 & 4 closed	Pins 3 & 4 closed

CD ROM TYPE SELECTION
Type		J6
»	Panasonic	Pins 1 & 2 closed
	Mitsumi	Pins 2 & 3 closed

CD-ROM CONFIGURATION
Setting		JCP2
»	Enabled	Closed
	Disabled	Open

CD ROM ADDRESS SELECTION
Address		JCP1
»	300h	Closed
	340h	Open