EduQuest Sound

Sound Card
Optional Sound Extension Board

Content by William R. Walsh, original here.


Sound Card

Thanks to Arthur H. Walker for providing this card.

MWAVE EduQuest card

JP1-JP5 Marked as "Addr", "RFREQ", and "MIDI". (?)
JP7-11 IRQ selection.
JP13 Not a clue--it is open on my adapter.
JP14-JP19 DRQ/DACK selection.
JP20 3-pin header (?). Set on pins facing the rear (away from the ports) on mine.
OSC1 33.8688MHz OSC
OSC2 23.040MHz OSC
U1 Crystal CS4215-KL
U4 TI MWave DSP TMS320M520PQL

Notes:

JP7-11 IRQ selection. Choices in order from JP7 to JP11 are:
   IRQ7, IRQ5, IRQ4, IRQ9, IRQ15

JP14-JP19 DRQ/DACK selection. Choices in order from JP14 to JP19 are:
   DACK5, DRQ6, DACK6, DRQ6, DACK7, DRQ7

The "CD Audio" plugs above are a set of 4x4 pin headers. I believe they all have the same pinout and you can plug your CD-ROM drive's audio output into any of them with the same results.

Supposedly this card works under Windows 95. I have no idea whether or not this is true, and if it involves reusing Windows 3.1x drivers or not. I have no idea where any drivers for the card are and would appreciate being directed to them if they still exist. Please send an e-mail message to wct@walshcomptech.com if you have information on this.


Optional Sound Extension Board

Runs two headphone plugs, one microphone plug, and a volume control to the system's front for easy access.

Thanks to David L. Beem for providing this and the needed bezel. I need to find the interconnect cable for this card so I can use it completely.

Sound Board

J1 Connection to sound card
J2 Earphone Plug #1
J3 Connection to planar for basic audio
J5 Earphone Plug #2
J6 Connection to System Speaker for audio output
J7 Microphone Plug
U1 Samsung KA386


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