Re: LisaDAC sound card jumpers

Hi James,
I was just informed from John Woodall that you have created a new , enhanced Lisa sound DAC with 2 additional parts. What are the differences to my original DAC from DAFAX?
Is it possible to upgrade my Lisa soun DAC? Is the sound DAC now compatible with my SigmaSeven Xlerator 18?

Thanks for any info!

Helmut

• Original Message ----- From: "James MacPhail" <gg__at_email.domain.hidden> To: <lisalist_at_email.domain.hidden> Sent: Saturday, March 05, 2011 12:32 AM Subject: LisaDAC sound card jumpers

>
> Dr. Helmut Post wrote:
>>BTW: I have a Lisa Sound DAC, but I don't anything about the jumper
>>settings, the proper slot assignment etc...
>
> J3 is a header for attaching an external speaker. To use the internal
> speaker, put a jumper between pins 1 and 2. To use an external speaker,
> connect it between pins 1 and 4.
>
> J4 is a DMA Bus Grant pass-through. In theory it should have a jumper on
> it because the card does not use DMA. However, no other card uses DMA
> either, so I expect it does not matter.
>
> J5 has something to do with the card select logic -- I don't know what it
> is supposed to do; it doesn't appear to have any effect. I would guess
> that it is to enable the second EPROM socket (which is empty on every card
> I've seen). My card arrived with a jumper between pins 1 and 2 (the "A"
> position).
>
> I believe the card will work in any slot, but there is a chance that it
> depends on the software/hardware in use. I'm certain mine has worked in
> all three slots with MW+II 2.5.0 and System 7.0.1*. By "worked", I mean
> that the sound control panel produces different sounds... "quack", etc.,
> but distorted to some extent (equally in all slots).
>
>>What is the newest Eprom version for the Sound DAC?
>
> I know of only two versions of the EPROM, 1.0 and 1.1, so I think you have
> the latest one.
>
>>Do I need any special driver for system 6.07 or 7.1 or even newer?
>
> MacWorks Plus II has the LisaDAC software in it, so it does not need a
> driver. I believe the later versions of MacWorks Plus 1.x also include the
> software, so you might only need a driver file for MacWorks XL 3.0... I
> don't know where to find the driver if there is one.
>
> James
>
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