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First post, by retro games 100

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Can someone please tell me what the chips do on the Maui? I think the ones very close to the SIMM RAM are onboard RAM, although it's interesting that further away from that area (not pictured) there is another small RAM IC. I think the chip next to this area is the 2MB ROM chip. The large chip I guess is the main sound processing unit? I guess the Motorola? chip is the bus interface chip? What does the smaller wavefront chip do please? Also, as there are no sound effects from this unit, I guess there is no codec? Any comments would be gratefully received - thanks a lot! 😀 PS...where is the DAC? Thanks.

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Reply 1 of 10, by peklop

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Motorola CPU datasheet:
https://www.nxp.com/docs/en/product-brief/MC68SEC000.pdf

WafeFront ICS2115 Synthesizer:
https://4donline.ihs.com/images/VipMasterIC/I … SID002-G-51.pdf

WaveFront ICS2116 Interface component
https://4donline.ihs.com/images/VipMasterIC/I … ID001-G-171.pdf

WAVEROM ICS2122M is ROM

ICS2494 is memory clock generator
http://www.transputer.net/mtw/rg-750/doc/video/ics2494.pdf

3x Toshiba TC514256AJ-70 are 128kB DRAM memory chips.
https://wakamatsu.co.jp/waka/TOSHD003-A-185.pdf

DAC is U36 under two capacitors?

Reply 2 of 10, by peklop

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BTW why some Maui 1.0 cards have and some don't have WaveBlaster connector?
If is one striped-down variant, are all with same waveROM size?
(when Tropez/TBS-2001/TBS-2000/Tropez32 existing with 4MB, 2MB or 1MB ROMs)

Reply 3 of 10, by cyclone3d

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peklop wrote:

BTW why some Maui 1.0 cards have and some don't have WaveBlaster connector?
If is one striped-down variant, are all with same waveROM size?
(when Tropez/TBS-2001/TBS-2000/Tropez32 existing with 4MB, 2MB or 1MB ROMs)

I saw in another thread that that is not actually a waveblaster connector, but actually an input so you can hook up the Maui to another sound card's waveblaster header so you can run the Maui as if it were a daughtercard.

Yamaha YMF modified setupds and drivers
Yamaha XG resource repository - updated November 27, 2018
Yamaha YMF7x4 Guide
AW744L II - YMF744 - AOpen Cobra Sound Card - Install SB-Link Header

Reply 4 of 10, by Rawit

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peklop wrote:

BTW why some Maui 1.0 cards have and some don't have WaveBlaster connector?

Only time I saw a picture of a Maui with the header was when somebody soldered one to try out what it does. I thought it was an abandoned idea and that there was only one revision.

Do you have any docs/info on this? AFAIK the Tropez classic has the same ROM as the Maui, 2MB. Second Tropez classic revision has a pop in the left channel in combination with some mainboards.

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Reply 8 of 10, by yawetaG

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cyclone3d wrote:
peklop wrote:

BTW why some Maui 1.0 cards have and some don't have WaveBlaster connector?
If is one striped-down variant, are all with same waveROM size?
(when Tropez/TBS-2001/TBS-2000/Tropez32 existing with 4MB, 2MB or 1MB ROMs)

I saw in another thread that that is not actually a waveblaster connector, but actually an input so you can hook up the Maui to another sound card's waveblaster header so you can run the Maui as if it were a daughtercard.

There's also a special Turtle Beach daughterboard called Rio that can be hooked up to it. See Turtle beach Rio midi daughterboard

Reply 10 of 10, by retrosoundi

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Great card with great possibilities its "only " a midi card but there is a wemp96 player for mods in dos Wavefront Extended Module Player v0.96 by Daniel Baum .

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In the manulal its says that you can connect this card to a sound card with the 26 pin ribbon cable to replace its synth
In games Its easier to have maui installed with other sound card and plug the maui sound out to a sound in or auxilliary of this other card and make changes in games setup for midi sounds .
You can find info in the internet that:
SECTION 2: Package Changes
--------------------------

2a) Changes to the Card

The first batch of Maui's had the WaveBlaster connector header,
however, subsequent Maui's did not have this connector. The explanation
from Turtle Beach was that Creative Labs changed the WaveBlaster
specifications at the last minute so the WaveBlaster connector was removed.
For those of you who want WaveBlaster daughtercards, look into Turtle
Beach's Rio card.

2b Changes to the Manual (v1.0)

Since the WaveBlaster header is no longer there, the references to
the WaveBlaster connector and "Internal Serial MIDI Interface" are fairly
obsolete. As far as I know, no one has tried to make their own patch cable
to use the WaveBlaster header circuitry on the Maui.
The JP2 Port settings on page 12 to set the Base Address Maui uses is
incorrect. The setting for port 230h is correct, but the setting for port 210h
should show all jumpers closed.