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EASY OPTIONS PROFESSIONAL AUDIO CARD AC523, EASY OPTIONS SOUND CARD CD651

IBM CORPORATION

EASY OPTIONS PROFESSIONAL AUDIO CARD AC523, EASY OPTIONS SOUND CARD CD651

Card Type

Sound card

Chip Set

Unidentified

Maximum Onboard Memory

N/A

I/O Options

Audio extension connector, CD-ROM audio, CD-ROM interface, game/MIDI port, line in, microphone in, MIDI extension connector, PC speaker, speaker out, volume

Data Bus

16-bit ISA

Floppy drives supported

N/A

CONNECTIONS

Function

Label

Function

Label

Game/MIDI port

CN1

MIDI extension connector

CN6

Audio extension connector

CN2

Line in

J1

CD-ROM interface

CN3

Mic in

J2

PC speaker

CN4

Speaker out

J3

CD - audio in

CN5

Volume

VR1

USER CONFIGURABLE SETTINGS

Function

Label

Position

Game port enabled

JYEN

Closed

 

Game port disabled

JYEN

Open

MIDI base address is 330h

MSEL

Closed

 

MIDI base address is 300h

MSEL

Open

AUDIO BASE I/O ADDRESS SELECTION

Address

IOS0

IOS1

220h

Closed

Closed

 

240h

Open

Closed

 

260h

Closed

Open

 

280h

Open

Open

INTERRUPT SELECTION

IRQ

IS0

IS1

 

2/9

Closed

Closed

5

Open

Closed

 

7

Closed

Open

 

10

Open

Open

8-BIT DMA CHANNEL SELECTION

Channel

DAS0

DAS1

 

0

Closed

Closed

1

Open

Closed

 

3

Closed

Open

16-BIT DMA CHANNEL SELECTION

Channel

DBS0

DBS1

5

Closed

Closed

 

6

Open

Closed

 

7

Closed

Open

AUDIO INTERNAL AMPLIFIER CONFIGURATION

Setting

OPSL

OPSR

 

Disabled

Pins 1 & 2 closed

Pins 1 & 2 closed

Enabled

Pins 2 & 3 closed

Pins 2 & 3 closed