OPA-4741 IO card Settings and Configuration

Card Type	CD-ROM interface card
Chip Set	Unidentified
Maximum Onboard Memory	Unidentified
I/O Options	IDE interface, audio in - CD-ROM, headphone jack
Hard Drives supported	None
Floppy drives supported	None
Data Bus	8-bit ISA
Card Size	Half-length

CONNECTIONS
Function	Label	Function	Label
IDE interface - internal	CN1	Headphone jack	CN3
Audio in - CD-ROM	CN2	IDE interface - external	CN4

USER CONFIGURABLE SETTINGS
Function		Label	Position
»	Factory configured - do not alter	JP1/C	Unidentified
»	Factory configured - do not alter	JP1/C	Unidentified
»	Factory configured - do not alter	JP2/D	Unidentified
»	Factory configured - do not alter	JP3/D	Unidentified
»	Factory configured - do not alter (IRQ interrupt - not used)	JP4/A	Unidentified
»	Factory configured - do not alter (IRQ interrupt - not used)	JP4/B	Unidentified
»	Factory configured - do not alter (IRQ interrupt - not used)	JP4/C	Unidentified
»	Factory configured - do not alter (IRQ interrupt - not used)	JP4/D	Unidentified

DMA CHANNEL SELECTION
Channel		JP2/A	JP2/B	JP2/C	JP3/A	JP3/B	JP3/C
	1	Closed	Open	Open	Closed	Open	Open
	2	Open	Closed	Open	Open	Closed	Open
»	3	Open	Open	Closed	Open	Open	Closed

BASE I/O ADDRESS SELECTION
Setting		JP1/A	JP1/B
	320h	Closed	Closed
	330h	Closed	Open
»	340h	Open	Closed
	360h	Open	Open

MISCELLANEOUS TECHNICAL NOTES

OPA-4741 Sony CD-ROM interface kit is compatible with Sony CDU 31A and Sony CDU 33A CD-ROM drives.